Optical fiber post-coating system

Abstract

A kind of optical fiber post-coating system, by setting up front rack and rear rack on the two sides of optical platform respectively, setting up fiber placement assembly and tension adjusting assembly on front rack, setting up optical fiber etching assembly and automatic ink jet mechanism on optical platform, setting up optical fiber coating assembly, curing assembly, metering assembly, fiber collection assembly, tension adjusting assembly, tension sensor and diameter measuring instrument on rear rack, the linear velocity of optical fiber is controlled by PLC control system, it is beneficial to complete optical fiber etching, coating, curing and marking on the same production line, accurately control the mode of marking, section length and color ring quantity, it is beneficial to improve optical fiber production efficiency and quality, and realize rewinding without coating, improve the utilization of equipment.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of optical fiber production equipment, and relates to an optical fiber post-coating system. BACKGROUND

[0002] The outermost layer of the optical fiber is a coating layer, which is used for preventing dust pollution and is made of an elastic coating material that is cured by ultraviolet light, so as to protect the surface of the optical fiber from moisture and external force scratches, improve the micro-bending resistance of the optical fiber, and reduce the loss of the optical fiber; in the production process of the optical fiber, the optical fiber is usually wound into a roll after being drawn and formed on an optical fiber production line, and then the coating equipment is used for coating the optical fiber; this method needs to repeatedly wind and release the optical fiber, and cannot integrate etching, coating, curing and marking of the optical fiber on the same production line. SUMMARY

[0003] The application solves the technical problem of providing an optical fiber post-coating system, which is characterized in that a front rack and a rear rack are arranged on the two sides of an optical platform, a fiber placing assembly and a tension adjusting assembly one are arranged on the front rack, an optical fiber etching assembly and an automatic ink jet mechanism are arranged on the optical platform, an optical fiber coating assembly, a curing assembly, a metering assembly one, a metering assembly two, a fiber collecting assembly, a tension adjusting assembly two, a tension sensor one, a tension sensor two and a diameter measuring instrument are arranged on the rear rack, the linear speed of the optical fiber is controlled by a PLC control system, the mode, the length and the number of color rings of the marking are accurately controlled, the production efficiency and the quality of the optical fiber are improved, and the optical fiber can be rewound without coating, thereby improving the utilization rate of the equipment.

[0004] To solve the above technical problem, the technical solution of the application is as follows: an optical fiber post-coating system, which comprises a fiber placing assembly, an optical fiber etching assembly, an automatic ink jet mechanism, an optical fiber coating assembly, a curing assembly, a metering assembly one, a metering assembly two and a fiber collecting assembly arranged in sequence in the rear section of the fiber placing assembly; a tension adjusting assembly one is arranged between the fiber placing assembly and the optical fiber etching assembly, and a tension sensor one arranged between the automatic ink jet mechanism and the optical fiber coating assembly and a tension sensor two arranged in front of the fiber collecting assembly are electrically connected with a PLC control system.

[0005] The fiber placing assembly and the tension adjusting assembly one are fixed on the front rack, and the tension is fed back by a tension swing lever and adjusted by PID, and the tension swing lever is electrically connected with the PLC control system.

[0006] The optical fiber etching assembly and the automatic ink jet mechanism are arranged on the same axis of the optical platform; a plurality of ink jet heads of the automatic ink jet mechanism are arranged in a ring shape, and the jet angles of the plurality of ink jet heads intersect with each other.

[0007] The fiber coating assembly, the curing assembly, the metering assembly one, the metering assembly two and the fiber collecting assembly are arranged on the rear rack; the transition wheels on both sides of the optical platform are fixed on the front rack and the rear rack respectively; the fiber coating assembly and the curing assembly are located on the same vertical axis; a tension sensor one is arranged on the upper part of the fiber coating assembly.

[0008] A diameter measuring instrument is arranged on the lower part of the curing assembly; a metering assembly one is arranged on the rear side of the diameter measuring instrument; a fiber collecting assembly is arranged on the upper part of the metering assembly one; a tension adjusting assembly two is arranged between the metering assembly one and the fiber collecting assembly; a tension sensor two is arranged between the tension adjusting assembly two and the fiber collecting assembly.

[0009] A metering assembly two is arranged on one side of the tension sensor one on the upper part of the fiber coating assembly; the metering assembly two is the tension adjusting assembly two.

[0010] The fiber collecting assembly triggers and gives an electrical signal when winding at a set pitch.

[0011] The curing furnace of the curing assembly is an LED curing furnace, and nitrogen is blown in the curing furnace.

[0012] The automatic ink jet mechanism includes the mode, the segment length and the number of color rings when marking, and is controlled by the PLC control system.

[0013] The rear coating method of the fiber rear coating system as described above comprises the following steps:

[0014] S1, fiber feeding, the fiber drawn on the pipeline is wound on the fiber feeding disc of the fiber feeding assembly, and the fiber feeding assembly starts to feed the fiber; in this step, the tension adjusting assembly one between the tension swing lever, the fiber feeding assembly and the fiber etching assembly works synchronously, the tension adjusting assembly one adjusts the fiber feeding tension, the tension swing lever feeds back the measured value, the appropriate fiber collecting disc rotating speed is calculated by the PLC control system, and the rotating speed is adjusted by the PID;

[0015] S2, etching, the fiber etching assembly starts to etch the grating on the surface of the fiber; in this step, the tension sensor one between the automatic ink jet mechanism and the fiber coating assembly sends the sensed tension value to the PLC control system, the fiber linear speed is controlled by the PLC control system, and the fiber linear speed is ensured to be unchanged in the etching process;

[0016] S3, ink jet, the automatic ink jet mechanism starts to jet ink on the fiber according to the mode, the segment length and the number of color rings set in advance; in this step, multiple ink jet heads jet ink at the same time, and the color ring marks are formed on the surface of the fiber.

[0017] S4, coating drying, the optical fiber coating assembly is started, and a coating layer is formed on the surface of the optical fiber; the curing assembly is started at the same time, and the coating layer is cured to form a cured layer; in this step, nitrogen is used in the curing furnace to blow and cool the optical fiber cured layer;

[0018] S5, diameter measurement, the coated optical fiber passes through the diameter measuring instrument, the diameter measuring instrument measures the diameter of the optical fiber in real time and feeds back to the PLC control system; in this step, if the measured diameter is not within the set threshold range, the PLC control system controls the optical fiber coating assembly to adjust the coating thickness on the surface of the optical fiber;

[0019] S6, length recording, the optical fiber passes through the metering assembly one at the rear of the diameter measuring instrument, the metering assembly one records the length value of the coated optical fiber in real time and feeds back to the PLC control system;

[0020] S7, fiber winding, the winding assembly is started to wind the coated optical fiber on the winding disc of the winding assembly; in this step, the tension sensor two in front of the winding assembly feeds back the measured tension value to the PLC control system, and the tension adjusting assembly two in front of the winding assembly is controlled by the PLC control system to adjust the tension during winding;

[0021] After S3, if the optical fiber is not coated, it directly passes through the tension sensor one and the transition wheel above the optical fiber coating assembly, passes through the tension adjusting assembly two below the metering assembly two on the side of the tension sensor one, and is wound on the winding disc of the winding assembly through the tension sensor two above the winding assembly, so that the rewinding of the optical fiber is realized.

[0022] The main beneficial effects of the present application are embodied in:

[0023] The present application sets a front rack, an optical platform and a rear rack at the end of the optical fiber drawing equipment, arranges the fiber placing assembly and the tension adjusting assembly one on the front rack, arranges the optical fiber etching assembly and the automatic ink jet mechanism on the optical platform, and arranges the optical fiber coating assembly, the curing assembly, the metering assembly one, the metering assembly two, the winding assembly, the tension adjusting assembly two, the tension sensor one and the tension sensor two on the rear rack, which extends the production line and is compact in structure, and is beneficial to the online etching, coating, curing and marking of the optical fiber after the preform rod is drawn.

[0024] The multiple ink jet heads of the automatic ink jet mechanism are arranged in a ring shape, the jet angles of the multiple ink jet heads intersect with each other, and the color ring mark is formed when the jet heads jet at the same time.

[0025] The automatic ink jet mechanism is electrically connected with the PLC control system, and the color ring is accurately controlled in the optical fiber etching area.

[0026] The curing furnace of the curing assembly adopts an LED curing furnace, the inside of which is purged by nitrogen, and the LED curing furnace is electrically connected with the PLC system, which is beneficial to real-time adjustment of the power range, so that the time, temperature and the like of the optical fiber coating layer passing through the LED curing furnace are coupled with the linear speed, and the curing quality of the coating layer is improved.

[0027] The optical fiber can be directly rewound without coating and curing; the coated optical fiber is detected by the diameter measuring instrument, and the coating and curing thickness can be detected in real time, which is beneficial to adjustment of the coating thickness by the control equipment through the PLC control system. BRIEF DESCRIPTION OF DRAWINGS

[0028] The application will be further described below in combination with the drawings and examples:

[0029] Figure 1 The layout of the application is shown in the figure.

[0030] In the figure: fiber placing assembly 1, front rack 11, tension swing lever 12, optical fiber etching assembly 2, optical platform 21, automatic inkjet mechanism 3, inkjet head 31, optical fiber coating assembly 4, rear rack 41, curing assembly 5, metering assembly one 6-1, metering assembly two 6-2, fiber collecting assembly 7, tension adjusting assembly one 80-1, tension adjusting assembly two 80-2, tension sensor one 81-1, tension sensor two 81-2, diameter measuring instrument 82. DETAILED DESCRIPTION

[0031] As Figure 1 In the figure, an optical fiber post-coating system includes, in sequence from the rear of the fiber placing assembly 1, an optical fiber etching assembly 2, an automatic inkjet mechanism 3, an optical fiber coating assembly 4, a curing assembly 5, a metering assembly one 6-1, a metering assembly two 6-2 and a fiber collecting assembly 7; the tension adjusting assembly one 80-1 is arranged between the fiber placing assembly 1 and the optical fiber etching assembly 2, the tension sensor one 81-1 is arranged between the automatic inkjet mechanism 3 and the optical fiber coating assembly 4, and the tension sensor two 81-2 in front of the fiber collecting assembly 7 is electrically connected with the PLC control system. In use, the linear speed of the optical fiber is controlled by the PLC control system, which is beneficial to completion of optical fiber etching, coating, curing and marking on the same production line, precise control of the marking mode, segment length and color ring quantity, improvement of the optical fiber production efficiency and quality, and realization of rewinding without coating, and improvement of the utilization rate of the equipment.

[0032] In the preferred embodiment, the fiber releasing assembly 1 and the tension adjusting assembly 1 80-1 are fixed on the front frame 11 and are fed back by the tension pendulum 12 and adjusted by PID. The tension pendulum 12 is electrically connected with the PLC control system. In use, the optical fiber is led out from the fiber releasing disc of the fiber releasing assembly 1, passes through the tension pendulum 12 and the tension adjusting assembly 1 80-1, and the measured value is fed back to the PLC control system through the tension pendulum 12. The PLC control system calculates the appropriate rotating speed of the fiber collecting disc and adjusts by PID.

[0033] Preferably, the moving part of the tension adjusting assembly 1 80-1 is a damping cylinder which is electrically connected with the PLC control system and adjusts the tension of the optical fiber in real time.

[0034] In the preferred embodiment, the optical fiber etching assembly 2 and the automatic ink jet mechanism 3 are arranged on the same axis of the optical platform 21. The multiple ink jet heads 31 of the automatic ink jet mechanism 3 are arranged in a ring shape and the jet angles of the multiple ink jet heads 31 intersect with each other. In use, the optical fiber is led out from the transition wheel on the front frame 11, passes through the optical fiber etching assembly 2 and the automatic ink jet mechanism 3. The optical fiber etching assembly 2 etches the grating on the surface of the optical fiber and the multiple ink jet heads 31 simultaneously jet to form the color ring mark on the surface of the optical fiber.

[0035] In the preferred embodiment, the optical fiber coating assembly 4, the curing assembly 5, the metering assembly 1 6-1, the metering assembly 2 6-2 and the fiber collecting assembly 7 are arranged on the rear frame 41. The transition wheels on both sides of the optical platform 21 are fixed on the front frame 11 and the rear frame 41 respectively. The optical fiber coating assembly 4 and the curing assembly 5 are located on the same vertical axis. A tension sensor 1 81-1 is arranged on the upper part of the optical fiber coating assembly 4. In use, the optical fiber is led out from the automatic ink jet mechanism 3, passes through the transition wheel and the tension sensor 1 81-1 on the rear frame 41 and enters the optical fiber coating assembly 4. The optical fiber coating assembly 4 coats the surface of the optical fiber to form a coating layer. The multiple devices are combined on the rear frame 41, so that the structure is compact, the devices are staggered in height, the space is reasonably utilized, and the occupied space and length of the assembly line are reduced.

[0036] Preferably, the tension sensor 1 81-1 on the upper part of the optical fiber coating assembly 4 cooperates with the tension adjusting assembly 1 80-1 on the front frame 11. The tension sensor 1 81-1 sends the sensed tension value to the PLC control system. The PLC control system controls the action of the tension adjusting assembly 1 80-1 and controls the linear speed at the same time, so that the speed of the optical fiber passing through the optical fiber etching assembly 2 is consistent, which is conducive to improving the precision of grating etching.

[0037] In the preferred scheme, the diameter measuring instrument 82 is arranged on one side of the lower part of the curing assembly 5; the metering assembly 1 6-1 is arranged on the rear side of the diameter measuring instrument 82, and the fiber collecting assembly 7 is arranged on the upper part of the metering assembly 1 6-1; the tension adjusting assembly 2 80-2 is arranged between the metering assembly 1 6-1 and the fiber collecting assembly 7; and the tension sensor 2 81-2 is arranged between the tension adjusting assembly 2 80-2 and the fiber collecting assembly 7.

[0038] Preferably, when the coated and cured optical fiber passes through the diameter measuring instrument 82, the diameter measuring instrument 82 detects the diameter of the coating layer of the optical fiber in real time and feeds back to the PLC control system; when the measured diameter value is not within the set threshold range, the PLC control system controls the optical fiber coating assembly 4 to adjust the coating thickness.

[0039] Preferably, the automatic inkjet mechanism 3 can also be arranged at the rear section of the curing assembly 5 to perform inkjet marking on the cured layer of the optical fiber.

[0040] Preferably, after the optical fiber passes through the metering assembly 1 6-1, the metering assembly 1 6-1 feeds back the length of the optical fiber to the PLC control system in real time, and displays the length of the optical fiber on the display screen in real time.

[0041] In the preferred scheme, the tension sensor 1 81-1 on the upper part of the optical fiber coating assembly 4 is arranged on one side of the metering assembly 2 6-2, and the tension adjusting assembly 2 80-2 is arranged on the lower part of the metering assembly 2 6-2. In use, when the optical fiber does not need to be coated, the optical fiber is led out from the tension sensor 1 81-1 on the upper part of the optical fiber coating assembly 4, enters the metering assembly 2 6-2 on one side thereof, and is finally led into the fiber collecting disc of the fiber collecting assembly 7, without passing through the optical fiber coating assembly 4 and the curing assembly 5, thereby realizing rewinding and achieving two functions on the same production line.

[0042] In the preferred scheme, the fiber collecting assembly 7 triggers and gives an electrical signal when winding at a set interval. In use, the set interval is usually 5 meters or 10 meters, for example, when the set interval is 5 meters, a 12V signal is triggered, and when the set interval is 10 meters, a 24V signal is triggered; the PLC control system makes corresponding adjustments according to the received signal and sends corresponding control instructions.

[0043] In the preferred scheme, the curing furnace of the curing assembly 5 adopts an LED curing furnace, and nitrogen is arranged inside the LED curing furnace. In use, the LED curing furnace adopts light warming heating, and nitrogen is used for blowing during the heating process, which is conducive to controlling and adjusting the heating temperature by the PLC control system and adjusting the air volume of the nitrogen blowing.

[0044] In the preferred embodiment, the automatic inkjet marking mechanism 3 includes the mode of marking, the length of segment and the number of color rings, which are set by the PLC control system. In use, the mode of marking, the length of segment and the number of color rings are set by the PLC control system, and the automatic inkjet marking mechanism 3 sprays ink to mark according to the set matters.

[0045] In the preferred embodiment, the post-coating method of the optical fiber post-coating system as described above comprises the following steps:

[0046] S1, fiber laying, the optical fiber drawn on the pipeline is wound on the fiber laying disc of the fiber laying assembly 1, and the fiber laying assembly 1 starts to lay the fiber; in this step, the tension adjusting assembly 80-1 between the tension pendulum 12, the fiber laying assembly 1 and the optical fiber etching assembly 2 works synchronously, the tension adjusting assembly 80-1 adjusts the fiber laying tension, the tension pendulum 12 feeds back the measured value, and the PLC control system calculates the appropriate rotating speed of the fiber collecting disc and adjusts by PID;

[0047] S2, etching, the optical fiber etching assembly 2 starts to etch the optical fiber surface; in this step, the tension sensor 81-1 between the automatic inkjet marking mechanism 3 and the optical fiber coating assembly 4 sends the sensed tension value to the PLC control system, and the PLC control system controls the linear speed of the optical fiber to ensure that the linear speed of the optical fiber is constant during the etching process;

[0048] S3, inkjet, the automatic inkjet marking mechanism 3 starts to spray ink on the optical fiber according to the previously set mode, length of segment and number of color rings; in this step, multiple inkjet heads 31 spray ink at the same time to form color ring marks on the optical fiber surface;

[0049] S4, coating and drying, the optical fiber coating assembly 4 starts to form a coating layer on the optical fiber surface; the curing assembly 5 starts to cure the coating layer to form a cured layer; in this step, nitrogen is used in the curing furnace to blow and cool the optical fiber cured layer;

[0050] S5, diameter measurement, the coated and dried optical fiber passes through the diameter measuring instrument 82, the diameter measuring instrument 82 measures the diameter of the optical fiber in real time and feeds back to the PLC control system; in this step, if the measured diameter is not within the set threshold range, the PLC control system controls the optical fiber coating assembly 4 to adjust the coating thickness on the optical fiber surface;

[0051] S6, length recording, the optical fiber passes through the metering assembly 6-1 at the rear of the diameter measuring instrument 82, the metering assembly 6-1 records the length value of the coated optical fiber in real time and feeds back to the PLC control system;

[0052] S7, the fiber is collected, the fiber collection assembly 7 starts to collect the coated optical fiber, and the optical fiber is wound on the fiber collection disc of the fiber collection assembly 7; in this step, the tension sensor two 81-2 in front of the fiber collection assembly 7 feeds back the measured tension value to the PLC control system, and the PLC control system controls the tension adjusting assembly two 80-2 in front of the fiber collection assembly 7 to adjust the tension during the fiber collection;

[0053] After S3, if the optical fiber is not coated, the optical fiber directly passes through the tension sensor one 81-1 on the upper part of the optical fiber coating assembly 4 and the transition wheel, passes through the metering assembly two 6-2 on the side of the tension sensor one 81-1, passes through the tension adjusting assembly two 80-2 on the lower part of the metering assembly two 6-2, and is wound on the fiber collection disc of the fiber collection assembly 7 through the tension sensor two 81-2 on the upper part of the fiber collection assembly 7, so as to realize the rewinding of the optical fiber.

[0054] The above method completes the etching, coating, curing and marking of the optical fiber on the same production line, is beneficial to improve the production efficiency and quality of the optical fiber, realizes the rewinding in the case where the optical fiber is not coated, and improves the utilization rate of the equipment.

[0055] The above embodiment is only a preferred technical solution of the present application, and should not be regarded as a limitation of the present application. The embodiments in the application and the features in the embodiments can be combined with each other in the case of no conflict. The protection scope of the present application should be the technical solution recited in the claims, and the equivalent replacement solution of the technical features recited in the claims is the protection scope. That is, the equivalent replacement improvement in this range is also within the protection scope of the present application.

Claims

1. An optical fiber post-coating system characterized by: The fiber laying assembly (1) is sequentially provided with a fiber etching assembly (2), an automatic ink jet mechanism (3), a fiber coating assembly (4), a curing assembly (5), a metering assembly one (6-1), a metering assembly two (6-2) and a fiber collecting assembly (7); the fiber laying assembly (1) and the fiber etching assembly (2) are provided with a tension adjusting assembly one (80-1), the automatic ink jet mechanism (3) and the fiber coating assembly (4) are provided with a tension sensor one (81-1) and a tension sensor two (81-2) in front of the fiber collecting assembly (7), and the tension sensor one (81-1) and the tension sensor two (81-2) are electrically connected with a PLC control system; The fiber etching assembly (2) and the automatic ink jet mechanism (3) are arranged on the same axis of an optical platform (21); a plurality of ink jet heads (31) of the automatic ink jet mechanism (3) are arranged in a ring shape, and the jet angles of the plurality of ink jet heads (31) are crossed with each other; The fiber coating assembly (4), the curing assembly (5), the metering assembly one (6-1), the metering assembly two (6-2) and the fiber collecting assembly (7) are arranged on a rear rack (41); transition wheels on both sides of the optical platform (21) are fixed on the front rack (11) and the rear rack (41); the fiber coating assembly (4) and the curing assembly (5) are located on the same vertical axis; and the fiber coating assembly (4) is provided with a tension sensor one (81-1) at the upper portion; The post-coating method comprises the following steps: S1, fiber laying, the fiber drawn on the pipeline is wound on a fiber laying disc of the fiber laying assembly (1), and the fiber laying assembly (1) is started; in this step, a tension adjusting assembly one (80-1) between the tension swing rod (12), the fiber laying assembly (1) and the fiber etching assembly (2) is synchronously worked, the tension adjusting assembly one (80-1) adjusts the fiber laying tension, the tension swing rod (12) feeds back the measured value, the appropriate fiber collecting disc rotating speed is calculated by the PLC control system, and the rotating speed is adjusted through the PID; S2, etching, the fiber etching assembly (2) is started, and the fiber surface is etched to form a grating; In this step, the tension sensor one (81-1) between the automatic ink jet mechanism (3) and the fiber coating assembly (4) sends the sensed tension value to the PLC control system, the fiber linear speed is controlled by the PLC control system, and the fiber linear speed is ensured to be unchanged in the etching process; S3, ink jet, the automatic ink jet mechanism (3) is started, the fiber is ink-jetted according to the preset mode, segment length and color ring quantity; in this step, the plurality of ink jet heads (31) are simultaneously ink-jetted, and the color ring marks are formed on the fiber surface; S4, coating and drying, the fiber coating assembly (4) is started, the coating layer is formed on the fiber surface; the curing assembly (5) is simultaneously started, the coating layer is cured to form a cured layer; in this step, nitrogen gas is used in the curing furnace to blow and cool the fiber cured layer; S5, diameter measurement, the fiber after the coating and drying passes through a diameter measuring instrument (82), the diameter measuring instrument (82) measures the fiber diameter in real time and feeds back to the PLC control system; in this step, if the measured diameter is not within the set threshold range, the fiber coating assembly (4) is adjusted by the PLC control system to adjust the coating thickness on the fiber surface. S6, metering, the metering assembly one (6-1) behind the fiber diameter measuring instrument (82) records the length value of the coated optical fiber in real time and feeds back to the PLC control system; S7, fiber winding, the fiber winding assembly (7) starts to wind the coated optical fiber on the fiber winding disc of the fiber winding assembly (7); in this step, the tension sensor two (81-2) in front of the fiber winding assembly (7) feeds back the measured tension value to the PLC control system, and the tension adjusting assembly two (80-2) in front of the fiber winding assembly (7) is controlled by the PLC control system to adjust the tension during fiber winding; After S3, if the optical fiber is not coated, it directly passes through the tension sensor one (81-1) on the upper part of the optical fiber coating assembly (4) and the transition wheel, and then passes through the tension adjusting assembly two (80-2) below the metering assembly two (6-2) on the side of the tension sensor one (81-1), and then passes through the tension sensor two (81-2) on the upper part of the fiber winding assembly (7) and is wound on the fiber winding disc of the fiber winding assembly (7), so as to realize rewinding of the optical fiber.

2. The optical fiber post-coating system of claim 1, wherein: The fiber unwinding assembly (1) and the tension adjusting assembly one (80-1) are fixed on the front rack (11) and are feedback by the tension swing rod (12) and PID adjustment, and the tension swing rod (12) is electrically connected with the PLC control system.

3. The optical fiber post-coating system of claim 1, wherein: The lower side of the curing assembly (5) is provided with a diameter measuring instrument (82); a metering assembly one (6-1) is arranged on the rear side of the diameter measuring instrument (82), the upper part of the metering assembly one (6-1) is provided with a fiber winding assembly (7), a tension adjusting assembly two (80-2) is arranged between the metering assembly one (6-1) and the fiber winding assembly (7), and a tension sensor two (81-2) is arranged between the tension adjusting assembly two (80-2) and the fiber winding assembly (7).

4. The optical fiber post-coating system of claim 1, wherein: The tension sensor one (81-1) on the upper part of the optical fiber coating assembly (4) is provided with a metering assembly two (6-2) on one side, and the lower part of the metering assembly two (6-2) is the tension adjusting assembly two (80-2).

5. The optical fiber post-coating system of claim 1, wherein: The fiber winding assembly (7) triggers and gives an electrical signal when winding at a set interval.

6. The optical fiber post-coating system of claim 1, wherein: The curing furnace of the curing assembly (5) adopts an LED curing furnace, and nitrogen is blown inside.

7. The optical fiber post-coating system of claim 1, wherein: The automatic ink jet mechanism (3) includes the mode, the segment length and the color ring number when marking, which are set and controlled by the PLC control system.

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