Preparation device of color strip optical fiber

Abstract

The utility model discloses a color strip optical fiber preparation device which comprises a rack, a coating die holder is fixedly mounted on one side of the rack, a bare optical fiber is slidably mounted in the coating die holder, a color strip optical fiber is formed at one end of the bare optical fiber, and a curing unit is fixedly mounted on the surface of one side of the rack. An upper positioning wheel, a twisting wheel and a lower positioning wheel are rotationally installed on one side of the machine frame through an installation frame, a diameter measuring instrument and a base are fixedly installed on one side of the machine frame, a compensation wheel is rotationally installed at one end of the base, a driving frame is arranged on one side of the machine frame, and a tension wheel and a traction machine are installed at the two ends of the driving frame respectively. Special colored coating resin is added in an outer layer coating process in an optical fiber production process for strip-shaped coating and curing, so that the optical fiber has the characteristics of identification and distinguishing, a uniform flow can be formed after combination and alignment, and the optical fiber is beneficial to installation control, convenient to produce, accurate and efficient.

Description

Technical Field

[0001] The utility model relates to the field of optical fibers, and more particularly to a device for preparing color strip optical fibers. Background Art

[0002] With the rapid development of fiber-optic communications and its widespread application in power systems, OPGW (Optical Fiber Composite Overhead Ground Wire) cables have emerged. These cables combine the dual functions of fiber-optic communications and power transmission. By seamlessly integrating fiber-optic communication elements with power transmission conductors, OPGW cables not only fully utilize existing power line resources but also significantly improve the reliability of communication systems. Their high bandwidth and low loss enable faster and more efficient data transmission, meeting the demands of modern communications for high-speed, high-capacity data transmission. OPGW cables also possess strong anti-interference and safety features, effectively resisting interference from external factors such as lightning and electromagnetic interference, ensuring the purity and accuracy of communication signals.

[0003] Due to the structural characteristics of OPGW optical cables, their internal optical fiber units often have multiple groups of 12 cores / tube structures. The same-color optical fibers in different units need to be distinguished by spraying color rings or color bands on the optical fiber surface. However, since the color ring spraying is performed locally and discontinuously on the optical fiber surface, it will cause local stress on the optical fiber, resulting in optical fiber micro-bending loss. This loss is particularly obvious under extremely high or low temperature conditions, seriously affecting the optical fiber transmission performance. Therefore, a new optical fiber preparation device and method needs to be proposed. Utility Model Content

[0004] In response to the problems existing in the prior art, the purpose of the present utility model is to provide a device for preparing color strip optical fibers. By adding a special colored coating resin to the outer coating process during the optical fiber production process for strip coating and curing, the optical fiber itself has the characteristics of identification and distinction. In addition, by combining and installing a variety of equipment, they can be combined and aligned to form a unified process, which is conducive to installation control, convenient production, and accurate and efficient.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions.

[0006] A color strip optical fiber preparation device comprises a frame, a coating die seat is fixedly mounted on one side of the frame, a bare optical fiber is slidably mounted inside the coating die seat, a color strip optical fiber is formed on one end of the bare optical fiber, a curing unit is fixedly mounted on the surface of one side of the frame, an upper positioning wheel, a twisting wheel and a lower positioning wheel are rotatably mounted on one side of the frame through a mounting frame, a diameter gauge and a base are fixedly mounted on one side of the frame, a compensation wheel is rotatably mounted on one end of the base, a driving frame is provided on one side of the frame, a tension wheel and a traction machine are respectively mounted on both ends of the driving frame, and the surface of the color strip optical fiber is rotatably connected to the upper positioning wheel, the twisting wheel, the lower positioning wheel, the tension wheel and the outer surface of the traction machine;

[0007] The color strip optical fiber includes a bare optical fiber, an optical fiber inner coating, an optical fiber outer coating and an optical fiber color strip, wherein the optical fiber inner coating is fixedly coated on the outer surface of the bare optical fiber, the optical fiber outer coating is fixedly coated on the outer surface of the optical fiber inner coating, and the optical fiber color strip is fixedly embedded on the outer surface of the optical fiber outer coating;

[0008] The upper end of the coating die base is provided with a coating protective gas pipeline interface, and a color strip optical fiber coating die is fixedly installed inside the coating die base. The color strip optical fiber coating die includes an introduction die, an inner coating die), an outer coating die and a color strip die. The outer surface of the introduction die is provided with an inner coating feed hole, the outer surface of the outer coating die is provided with an outer coating feed hole, the outer surface of the color strip die is provided with a color strip paint feed hole, one end surface of the color strip die is threadedly installed with a die fastening screw, and the interior of the color strip die is provided with a color strip coating hole.

[0009] Furthermore, an inner coating material supply pipeline interface is provided on the outer surface of the coating die base, and the inner coating material supply pipeline interface is located opposite to the inner coating material feed hole.

[0010] Furthermore, an external coating material supply pipeline interface is provided on the outer surface of the coating die base, and the external coating material supply pipeline interface is located opposite to the external coating material feed hole.

[0011] Furthermore, a color stripe paint supply pipeline interface is provided on the outer surface of the coating die base, and the color stripe paint supply pipeline interface is located opposite to the color stripe coating hole.

[0012] Furthermore, the bare optical fiber, the optical fiber inner coating and the optical fiber outer coating are layered structures and are all compositely coated.

[0013] Furthermore, there are three optical fiber color strips, which are evenly distributed at equal angles on the outer surface of the optical fiber outer coating, and the optical fiber color strips are distributed along the length direction of the bare optical fiber.

[0014] Furthermore, the outer surface of the color strip optical fiber is slidably connected to the interior of the curing unit and the diameter gauge.

[0015] Furthermore, an introduction mold hole is provided inside the introduction mold, and the bare optical fiber is slidably connected to the inside of the introduction mold hole.

[0016] Furthermore, an inner coating mold hole is provided inside the inner coating mold, and the bare optical fiber is slidably connected to the inside of the inner coating mold hole.

[0017] Furthermore, an outer coating mold hole is provided inside the outer coating mold, and the bare optical fiber is slidably connected to the inside of the outer coating mold hole.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution improves the production efficiency of optical cables: it shortens the process flow of optical cable processing. Depending on the application scenario of the optical cable, the fiber coloring or color ring process can be skipped and the plastic sheathing process can be entered.

[0020] (2) Better fiber environmental performance: Through the unique triangular uniformly distributed color strip design, the optical fiber will not be affected by the stress generated by the color strip and will not produce additional attenuation changes.

[0021] (3) Lower production costs: The optical fiber identification capability is completed in one step during the optical fiber production process, which effectively reduces the processing steps of the optical cable, improves the processing efficiency of the optical cable, and reduces the processing cost of the optical cable.

[0022] (4) High optical fiber appearance recognition: Compared with color ring recognition, color strip recognition has better differentiation, stronger recognition ability, and more prominent recognition features.

[0023] (5) Large appearance recognition capacity: The three-color stripe structure, combined with the color difference of the color stripes, can generate 48 appearance recognition methods based on the appearance characteristics of the optical fiber alone.

[0024] (6) Providing necessary conditions for optimizing the structure of optical cables: The original optical fiber coloring only has 12 color variations. The development of color strip optical fiber can increase the capacity of a single bundle tube of optical cables by 4 times without being constrained by optical fiber identification. This provides the possibility for optimizing the structure of optical cables, ensuring that the number of optical cable cores remains unchanged, reducing the size of the optical cable structure, and reducing the manufacturing cost of optical cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the coating die base of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal cross-section of the coating die base of the present invention;

[0028] Figure 4 This is a schematic diagram of the three-dimensional structure of the introduction mold of the present utility model;

[0029] Figure 5 This is a schematic diagram of the internal structure of the introduction mold of the present utility model;

[0030] Figure 6 For the utility model Figure 5 Schematic diagram of the middle AA section;

[0031] Figure 7 Schematic diagram of the cross section of the color strip optical fiber of the present invention;

[0032] Figure 8 This is a schematic diagram of the assembly structure of the introduction mold of the present utility model.

[0033] Description of the numbers in the figure:

[0034] 100, rack, 200, drive frame, 2, optical fiber inner coating, 3, optical fiber outer coating, 4, optical fiber color strip, 5, introduction mold, 6, inner coating mold, 7, outer coating mold, 8, color strip mold, 9, introduction mold hole, 10, inner coating mold hole, 11, outer coating mold hole, 12, color strip mold hole, 13, bare optical fiber, 14, color strip coating mold, 15, inner coating feed hole, 16, outer coating feed hole, 17, color strip feed hole, 18, mold fastening screw, 1 9. Color stripe coating hole, 20. Coating die base, 21. Inner coating feed pipe interface, 22. External coating feed pipe interface, 23. Color stripe paint feed pipe interface, 24. Die base introduction die, 25. Coating protective gas pipeline interface, 26. Color stripe optical fiber, 27. Curing unit, 28. Upper positioning wheel, 29. Twisting wheel, 30. Lower positioning wheel, 31. Diameter gauge, 32. Compensation wheel, 33. Base, 34. Tension wheel, 35. Puller. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-8, a color strip optical fiber preparation device, including a frame 100, a coating die base 20 is fixedly installed on one side of the frame 100, a bare optical fiber 13 is slidably installed inside the coating die base 20, a color strip optical fiber 26 is formed on one end of the bare optical fiber 13, a curing unit 27 is fixedly installed on the surface of one side of the frame 100, an upper positioning wheel 28, a twisting wheel 29 and a lower positioning wheel 30 are rotatably installed on one side of the frame 100 through a mounting frame, a diameter gauge 31 and a base 33 are fixedly installed on one side of the frame 100, a compensation wheel 32 is rotatably installed on one end of the base 33, a driving frame 200 is provided on one side of the frame 100, and a tension wheel 34 and a traction machine 35 are respectively installed at both ends of the driving frame 200, and the surface of the color strip optical fiber 26 is rotatably connected to the outer surface of the upper positioning wheel 28, the twisting wheel 29, the lower positioning wheel 30, the tension wheel 34 and the traction machine 35;

[0037] The color strip optical fiber 26 includes a bare optical fiber 13, an optical fiber inner coating 2, an optical fiber outer coating 3 and an optical fiber color strip 4. The optical fiber inner coating 2 is fixedly coated on the outer surface of the bare optical fiber 13, the optical fiber outer coating 3 is fixedly coated on the outer surface of the optical fiber inner coating 2, and the optical fiber color strip 4 is fixedly embedded in the outer surface of the optical fiber outer coating 3. The color strip optical fiber 26 is composed of a bare optical fiber 1, an optical fiber inner coating 2, an optical fiber outer coating 3, and an optical fiber color strip 4. The evenly distributed three-color strip method gives it rich appearance identification features.

[0038] The upper end of the coating die base 20 is provided with a coating protection gas pipeline interface 25, and the interior of the coating die base 20 is fixedly installed with a color strip optical fiber coating die 14, which includes an introduction die 5, an inner coating die 6, an outer coating die 7 and a color strip die 8. The outer surface of the introduction die 5 is provided with an inner coating feed hole 15, the outer surface of the outer coating die 7 is provided with an outer coating feed hole 16, the outer surface of the color strip die 8 is provided with a color strip paint feed hole 17, and one end surface of the color strip die 8 is threadedly installed with a mold fastening screw 18. A color stripe coating hole 19 is provided inside the mold 8. The color stripe coating mold 14 adopts a four-section structure, consisting of an inlet mold 5, an inner coating mold 6, an outer coating mold 7, and a color stripe mold 8. The inner coating mold 6 is provided with an inner coating mold hole 10 and an inner coating feed hole 15, and the outer coating mold 7 is provided with an outer coating mold hole 11 and an outer coating feed hole 16. The outer coating feed hole 16 on the outer coating mold 7 adopts a unique evenly distributed three semicircular convex dot structure design. The color stripe mold 8 is provided with a color stripe mold hole 12 and three independently fed color stripe feed holes 17.

[0039] See also Figure 2 and Figure 3The outer surface of the coating die base 20 is provided with an inner coating feed pipeline interface 21, and the inner coating feed pipeline interface 21 is located opposite to the inner coating feed hole 15. The outer surface of the coating die base 20 is provided with an outer coating feed pipeline interface 22, and the outer coating feed pipeline interface 22 is located opposite to the outer coating feed hole 16. The outer surface of the coating die base 20 is provided with a color stripe paint feed pipeline interface 23, and the color stripe paint feed pipeline interface 23 is located opposite to the color stripe coating hole 19, and the color stripe coating mold is installed inside the optical fiber drawing tower coating die base 20. The coating die base 20 is provided with an inner coating feed pipeline interface 21, an outer coating feed pipeline interface 22, a color stripe paint feed pipeline interface 23, a die base introduction die 24, and a coating protective gas pipeline interface 25.

[0040] See also Figure 1 and Figure 7 The bare optical fiber 13, the optical fiber inner coating 2 and the optical fiber outer coating 3 are layered structures and are all compositely coated. There are three optical fiber color strips 4, which are evenly distributed at equal angles on the outer surface of the optical fiber outer coating 3. The optical fiber color strips 4 are distributed along the length direction of the bare optical fiber 13. The outer surface of the color strip optical fiber 26 is slidably connected to the inside of the curing unit 27 and the diameter gauge 31.

[0041] See also Figure 4 、 Figure 5 and Figure 8 An introduction mold hole 9 is provided inside the introduction mold 5, and the bare optical fiber 13 is slidably connected to the inside of the introduction mold hole 9. An inner coating mold hole 10 is provided inside the inner coating mold 6, and the bare optical fiber 13 is slidably connected to the inside of the inner coating mold hole 10. An outer coating mold hole 11 is provided inside the outer coating mold 7, and the bare optical fiber 17 is slidably connected to the inside of the outer coating mold hole 11.

[0042] The optical fiber preparation method includes the following steps:

[0043] 1. First, determine that the color strip fiber 26 structure consists of a bare fiber 13, an inner fiber coating 2, an outer fiber coating 3, and a color fiber strip 4;

[0044] 2. Design a color stripe coating die 14, which consists of an introduction die 5, an inner coating die 6, an outer coating die 7, and a color stripe die 8. The four parts are connected from top to bottom by threads. The introduction die 5 is provided with a perfect circular introduction die hole 9, the inner coating die 6 is provided with an inner coating feed hole 15 and a perfect circular inner coating die hole 10, the outer coating die 7 is provided with an outer coating feed hole 16 and an outer coating die hole 11, and the outer coating die hole 11 is evenly distributed with three semicircular protrusions. The color stripe die 8 is provided with three color stripe feed holes 17 and a perfect circular color stripe die hole 12;

[0045] 3. The color stripe coating mold 14 is assembled into the coating mold base 20 during operation. A mold base introduction mold 24 is provided above the color stripe coating mold 14 and inside the coating mold base 20 to facilitate the insertion of the bare optical fiber 13. The coating film base 20 is provided with a coating protective gas pipeline interface 25. During operation, a protective gas with low viscosity is introduced to remove bubbles in the coating and maintain the stability of the coating process. After the color stripe coating mold 14 is assembled, the inner coating is fed through the inner coating feed pipeline interface 21 connected to the inner coating feed hole 15. The outer coating is fed through the outer coating feed pipeline interface 22 connected to the outer coating feed hole 16. Color stripe coating resins of different colors are filled in the color stripes through the three color stripe coating feed pipeline interfaces 23 connected to the color stripe feed hole 17.

[0046] 4. During the working process, the bare optical fiber 13 passes through the mold base introduction mold 24, the introduction mold hole 9, the inner coating mold hole 10, the outer coating mold hole 11 and the color stripe mold hole 12 in sequence. When the bare optical fiber 13 passes through the inner coating mold hole 10, an inner layer of resin is adhered to the surface of the bare optical fiber 13. At this time, the optical fiber end face is circular. When it passes through the outer coating mold hole 11, an outer layer of resin is adhered to the surface. At this time, the circular end face of the optical fiber will present three grooves evenly distributed on the circular end face due to the three semicircular protrusions evenly distributed on the outer coating mold hole 11. At this time, after passing through the color stripe mold hole 12, the color stripe coating resin will fill the three semicircular grooves on the surface of the outer coating resin. According to the different colors of the paint supplied by the three color stripe paint supply pipe interfaces 23, the bare optical fiber 13 becomes a color stripe optical fiber 26 with color stripe identification characteristics after coating;

[0047] The bare optical fiber 13 is pulled by a pulling machine 35, coated by a color strip coating mold 14 to become a color strip optical fiber 26, and then photocured by a curing unit 27, and then passes through the upper positioning wheel 28, the twisting wheel 29, the lower positioning wheel 30, the diameter gauge 31, and the compensation wheel 32 installed on the base 33, and finally passes through the pulling machine 35 for winding.

[0048] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A device for preparing color strip optical fiber, comprising a frame (100), characterized in that: A coating die seat (20) is fixedly mounted on one side of the frame (100), a bare optical fiber (13) is slidably mounted inside the coating die seat (20), and a color strip optical fiber (26) is formed at one end of the bare optical fiber (13). A curing unit (27) is fixedly mounted on the surface of one side of the frame (100), and an upper positioning wheel (28), a twisting wheel (29) and a lower positioning wheel (30) are rotatably mounted on one side of the frame (100) through a mounting frame. A caliper (31) and a base (33) are fixedly installed on the side, a compensation wheel (32) is rotatably installed on one end of the base (33), a driving frame (200) is provided on one side of the frame (100), and a tension wheel (34) and a traction machine (35) are respectively installed on both ends of the driving frame (200), and the surface of the color strip optical fiber (26) is rotatably connected to the outer surface of the upper positioning wheel (28), the twisting wheel (29), the lower positioning wheel (30), the tension wheel (34) and the traction machine (35); The color strip optical fiber (26) comprises a bare optical fiber (13), an optical fiber inner coating (2), an optical fiber outer coating (3) and an optical fiber color strip (4), wherein the optical fiber inner coating (2) is fixedly coated on the outer surface of the bare optical fiber (13), the optical fiber outer coating (3) is fixedly coated on the outer surface of the optical fiber inner coating (2), and the optical fiber color strip (4) is fixedly embedded in the outer surface of the optical fiber outer coating (3); The upper end of the coating die base (20) is provided with a coating protective gas pipeline interface (25), and a color strip optical fiber coating die (14) is fixedly installed inside the coating die base (20). The color strip optical fiber coating die (14) includes an introduction die (5), an inner coating die (6), an outer coating die (7) and a color strip die (8). The outer surface of the introduction die (5) is provided with an inner coating feed hole (15), the outer surface of the outer coating die (7) is provided with an outer coating feed hole (16), the outer surface of the color strip die (8) is provided with a color strip coating feed hole (17), one end surface of the color strip die (8) is threadedly installed with a die fastening screw (18), and the interior of the color strip die (8) is provided with a color strip coating hole (19).

2. The device for preparing a color strip optical fiber according to claim 1, characterized in that: An inner coating material supply pipe interface (21) is provided on the outer surface of the coating die base (20), and the inner coating material supply pipe interface (21) is located opposite to the inner coating material feed hole (15).

3. The device for preparing a color strip optical fiber according to claim 1, characterized in that: An external coating material supply pipeline interface (22) is provided on the outer surface of the coating die base (20), and the external coating material supply pipeline interface (22) is located opposite to the external coating material feed hole (16).

4. The device for preparing a color strip optical fiber according to claim 1, characterized in that: The outer surface of the coating die base (20) is provided with a color stripe coating material supply pipeline interface (23), and the color stripe coating material supply pipeline interface (23) is located opposite to the color stripe coating hole (19).

5. The device for preparing a color strip optical fiber according to claim 1, characterized in that: The bare optical fiber (13), the optical fiber inner coating (2) and the optical fiber outer coating (3) are layered structures and are all compositely coated.

6. The device for preparing a color strip optical fiber according to claim 1, characterized in that: There are three optical fiber color strips (4), which are evenly distributed at equal angles on the outer surface of the optical fiber outer coating (3). The optical fiber color strips (4) are distributed along the length direction of the bare optical fiber (13).

7. The device for preparing a color strip optical fiber according to claim 1, characterized in that: The outer surface of the color strip optical fiber (26) is slidably connected to the interior of the curing unit (27) and the caliper (31).

8. The device for preparing a color strip optical fiber according to claim 1, characterized in that: An introduction mold hole (9) is provided inside the introduction mold (5), and the bare optical fiber (13) is slidably connected to the inside of the introduction mold hole (9).

9. The device for preparing a color strip optical fiber according to claim 1, characterized in that: An inner coating mold hole (10) is provided inside the inner coating mold (6), and the bare optical fiber (13) is slidably connected to the inside of the inner coating mold hole (10).

10. The device for preparing a color strip optical fiber according to claim 1, characterized in that: An outer coating mold hole (11) is provided inside the outer coating mold (7), and the bare optical fiber (13) is slidably connected to the inside of the outer coating mold hole (11).

Images