Colored fiber color bar device

Abstract

The application discloses a colored fiber color bar adding device, which comprises a color bar ink supply system, a color bar adding die and a color bar ink curing furnace; the color bar ink supply system is connected with the color bar adding die through an ink supply pipe; the color bar ink curing furnace is located below the color bar adding die, and a central axis of the color bar ink curing furnace is kept in a same straight line with a central axis of the color bar adding die. The device has high production efficiency, and the speed can reach 3000 m / min; the identification effect is good, and the situation of missing identification ink does not occur; the device is convenient to modify, and can be slightly modified by using an existing coloring machine of a cable manufacturer; when not used, the device can be conveniently disassembled without affecting normal coloring use.

Description

Technical Field

[0001] This utility model belongs to the field of optical cable manufacturing technology, and specifically relates to a device for adding color stripes to colored optical fibers. Background Technology

[0002] In optical cable production, we coat the surface of bare optical fibers with different colored inks for identification, facilitating subsequent laying, splicing, and maintenance. Optical cable standards specify 12 different colors for easy identification, and several are selected from the same fiber bundle for differentiation as needed. However, when the number of optical fibers exceeds 12, this method becomes insufficient for production and usage requirements.

[0003] Therefore, optical cable manufacturers first spray a black color ring onto the bare optical fiber and then color it, using the color ring + coloring method for identification, thus distinguishing it from another optical fiber of the same color but without a color ring. However, this method still has the following drawbacks: 1. The method of printing color rings first and then coloring requires an inkjet printer. However, the quality of color rings printed by ordinary inkjet printers drops significantly once the speed exceeds 500m / min or even lower. Firstly, the performance of the inkjet printer itself is limited; at excessively high speeds, the printhead is prone to clogging, and the response speed cannot keep up, resulting in blurred, missing, or elongated color rings. Secondly, it requires high precision from the equipment used for printing color rings. The diameter of the bare optical fiber is only about 0.250mm. If the equipment's precision is insufficient, even slight movement of the bare optical fiber during high-speed printing can cause ink not to be printed, resulting in missing color rings. Therefore, using an inkjet printer to print color rings is too slow, severely impacting production efficiency, and it also requires high precision equipment without guaranteeing the quality of the color rings.

[0004] 2. Using a method of spraying color rings before coloring can result in missing color rings and clogging of the coloring mold. Because the color rings are only sprayed onto the surface of the bare optical fiber, the ink's adhesion is weak; you can easily see ink residue on your hand after lightly rubbing it. During coloring, the bare optical fiber with the color rings sprayed will continuously contact and rub against the guide rollers on the coloring machine, thus removing some of the color ring ink and causing missing rings. Furthermore, after prolonged production in the coloring mold, the black ink can accumulate inside the coloring mold core, causing mold clogging and resulting in excessive fiber attenuation, leading to serious quality issues. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a coloring fiber optic stripe device. This device has high production efficiency, with a speed of up to 3000m / min; good recognition effect, and no situation of missing recognition ink; it is easy to modify, and can use the existing coloring machine of the optical cable manufacturer with slight modification. When not in use, it can be easily disassembled without affecting normal coloring use.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A coloring fiber optic device for adding color stripes includes a color stripe ink supply system, a color stripe mold, and a color stripe ink curing oven. The color bar ink supply system is connected to the color bar mold via an ink supply pipe; The color bar ink curing oven is located below the color bar mold, and its central axis is aligned with the central axis of the color bar mold. Preferably, the color bar ink supply system includes an air inlet pipe, an air pressure control valve, an ink cup, and an ink delivery pipe; An external air source is connected to the air inlet of the ink cup via an air inlet pipe, and the ink outlet of the ink cup is connected to the color bar mold via an ink supply pipe; the air pressure control valve is installed on the air inlet pipe to regulate the air pressure entering the ink cup in order to control the output of the color bar ink.

[0007] Preferably, the color stripe mold has an inlet mold and an outlet mold on its upper and lower sides, respectively, and a hollow channel is formed between the inlet mold and the outlet mold for the coloring optical fiber to pass through.

[0008] Preferably, the color stripe mold includes an inner cavity and an outer cavity, and the annular cavity between the inner cavity and the outer cavity is filled with color stripe ink.

[0009] Preferably, the outlet mold is connected to the inner cavity by threads, and a silicone rubber ring is provided on the contact surface between the outlet mold and the inner and outer cavities for sealing.

[0010] Preferably, the outlet mold center is provided with a main channel for the colored optical fiber to pass through, and a number of microchannels are provided around the main channel to transport the colored ink to the surface of the optical fiber to form colored stripes. The colored stripes are evenly distributed along the circumference of the optical fiber and divide the entire circumference.

[0011] Preferably, a quartz glass tube is installed at the center of the color strip ink curing oven, and UV curing lamps are provided on both sides of the quartz glass tube. A reflector is provided around the inside of the curing oven to reflect and focus the ultraviolet light emitted by the UV curing lamps onto the surface of the colored optical fiber with the color stripe, so that the color strip ink can be cured quickly and firmly bonded to the ink on the surface of the optical fiber.

[0012] The present invention can achieve the following beneficial effects: This invention can effectively utilize the production speed of existing coloring machines, enabling coloring and adding color strips to be performed simultaneously, greatly improving production efficiency. It is completely unrestricted by the performance limitations of the inkjet printer itself, has good recognition effect, and will not experience ink loss. It is convenient to retrofit existing coloring machines, and can be easily disassembled without affecting normal coloring use when not in use. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the coloring fiber with color stripe device of this utility model; Figure 2 This is a longitudinal sectional view of the color stripe mold of this utility model; Figure 3 This is the front view of the export mold of this utility model; Figure 4 This is a top view of the outlet module of this utility model (showing the uniform distribution of microchannels on the circumference of the optical fiber); Figure 5 This is a schematic diagram of the cross-sectional structure of the color bar ink curing oven of this utility model (including the layout of the quartz glass tube, UV curing lamp tube and reflector). Detailed Implementation

[0014] Preferred solutions include Figures 1 to 5 As shown, a coloring fiber optic stripe application device includes a stripe ink supply system 1, a stripe mold 2, and a stripe ink curing oven 3. The stripe ink supply system 1 is connected to the stripe mold 2 via ink supply pipes 1-4, and the stripe ink curing oven 3 is located directly below the stripe mold 2 and its center is kept in a straight line.

[0015] The color bar ink supply system 1 includes an air inlet pipe 1-1, a pressure control valve 1-2, an ink cup 1-3, and an ink delivery pipe 1-4. An external air source is connected to the air inlet 1-3-1 of the ink cup through the air inlet pipe 1-1. The ink outlet 1-3-2 of the ink cup 1-3 is connected to the color bar mold 2 through the ink delivery pipe 1-4. The pressure control valve 1-2 is installed on the air inlet pipe 1-1.

[0016] The color stripe mold 2 has an inlet mold 2-1 and an outlet mold 2-4 installed on its upper and lower sides, respectively. A hollow channel for the colored optical fiber is formed between the inlet mold 2-1 and the outlet mold 2-4. The mold includes an inner cavity 2-2 and an outer cavity 2-3, filled with color stripe ink. The outlet mold 2-4 is threaded to the inner cavity 2-2, and a silicone rubber ring 2-4-1 seals the contact surfaces between the outlet mold 2-4 and the inner and outer cavities 2-2. The outlet mold 2-4 has a channel for the colored optical fiber at its center, surrounded by several channels for delivering color stripe ink to the surface of the colored optical fiber. The color stripe width is 0.2 mm, and the several color stripes evenly bisect the circumference of the entire colored optical fiber.

[0017] The color strip ink curing oven 3 is located directly below the color strip mold 2 and is centered. A quartz glass tube 3-1 is installed in the center of the curing oven, and UV curing lamps 3-2 are installed on both sides of the quartz glass tube 3-1. A reflector 3-3 is installed around the inner side of the curing oven, which can effectively reflect and focus the light emitted from the UV curing lamps onto the colored optical fiber with the color strip, so that the color strip ink can be cured quickly and the color strip ink can be firmly bonded to the ink on the surface of the colored optical fiber.

[0018] The working steps of this colored fiber optic stripe adding device are as follows: An external air source introduces compressed air into the ink cup containing the color strip ink through the air inlet 1-3-1 via the air inlet pipe 1-1. The air pressure forces the color strip ink through the ink outlet 1-3-2 and the ink supply pipe 1-4 into the cavity between the inner cavity 2-2 and the outer cavity 2-3 of the color strip mold 2. The air pressure control valve 1-2 can adjust the compressed air pressure, thereby controlling the output of ink.

[0019] The colored optical fiber enters the mold through the inlet mold 2-1 of the color stripe mold 2, and passes through the outlet mold 2-4 in the direction of AB. At this time, the ink in the color stripe mold adds several color stripes to the outer surface of the colored optical fiber in the direction of CD.

[0020] The colored optical fiber with added color stripes leaves the color stripe mold and enters the quartz glass tube 3-1 in the color stripe ink curing oven 3. After being irradiated by the UV curing lamp 3-2, the color stripe ink is cured and firmly adhered to the surface of the colored optical fiber.

[0021] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A device for adding color stripes to colored optical fibers, characterized in that: It includes a color bar ink supply system (1), a color bar mold (2), and a color bar ink curing oven (3); The color bar ink supply system (1) is connected to the color bar mold (2) through ink supply pipes (1-4); The color bar ink curing oven (3) is located below the color bar mold (2), and its central axis is aligned with the central axis of the color bar mold (2).

2. The coloring fiber with color stripe device according to claim 1, characterized in that: The color bar ink supply system (1) includes an air inlet pipe (1-1), an air pressure control valve (1-2), an ink cup (1-3), and an ink delivery pipe (1-4). An external air source is connected to the air inlet (1-3-1) of the ink cup (1-3) via an air inlet pipe (1-1). The ink outlet (1-3-2) of the ink cup (1-3) is connected to the color bar mold (2) via an ink supply pipe (1-4). The air pressure control valve (1-2) is installed on the air inlet pipe (1-1) and is used to regulate the air pressure entering the ink cup (1-3) to control the output of the color bar ink.

3. The coloring fiber with color stripe device according to claim 1, characterized in that: The color strip mold (2) has an inlet mold (2-1) and an outlet mold (2-4) on its upper and lower sides, respectively, and a hollow channel is formed between the inlet mold (2-1) and the outlet mold (2-4) for the coloring optical fiber to pass through.

4. The coloring fiber with color stripe device according to claim 1, characterized in that: The color strip mold (2) includes an inner cavity (2-2) and an outer cavity (2-3), and the annular cavity between the inner cavity (2-2) and the outer cavity (2-3) is filled with color strip ink.

5. The coloring fiber with color stripe device according to claim 3, characterized in that: The outlet mold (2-4) is connected to the inner cavity (2-2) by threads, and a silicone rubber ring (2-4-1) is provided on the contact surface between the outlet mold (2-4) and the inner cavity (2-2) and the outer cavity (2-3) for sealing.

6. The coloring fiber with color stripe device according to claim 3, characterized in that: The outlet module (2-4) has a main channel at its center for the colored optical fiber to pass through. Around the main channel are several microchannels for conveying colored ink to the surface of the optical fiber to form colored stripes. Several colored stripes are evenly distributed along the circumference of the optical fiber and divide the entire circumference.

7. The coloring fiber with color stripe device according to claim 1, characterized in that: The color strip ink curing oven (3) has a quartz glass tube (3-1) installed in the center, and UV curing lamps (3-2) are provided on both sides of the quartz glass tube (3-1). A reflector (3-3) is provided around the inside of the curing oven to reflect and focus the ultraviolet light emitted by the UV curing lamps (3-2) onto the surface of the colored optical fiber with the color stripe, so that the color strip ink can be cured quickly and firmly bonded to the ink on the surface of the optical fiber.

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