Self-cleaning pipeline and optical fiber feeding system

Abstract

The utility model provides a self-cleaning pipeline and an optical fiber feeding system, the self-cleaning pipeline comprises a main pipeline, the main pipeline comprises a first pipeline and a second pipeline which are communicated in sequence, and an included angle exists between the first pipeline and the second pipeline; the coating barrel is connected to the first pipeline and is communicated with the coating cup through the first pipeline and the second pipeline; the cleaning agent propelling device is connected with the first pipeline through a first branch pipe, and the joint of the first branch pipe and the first pipeline is close to the second pipeline relative to the coating barrel; the cleaning device launching stations comprise the first cleaning device launching station and the second cleaning device launching station, the cleaning device launching stations are located at the joint of the first pipeline and the second pipeline, and a launching opening of the first cleaning device launching station communicates with the first pipeline in the flowing direction of materials in the first pipeline. And an emission port of the second cleaner emission station is communicated with the second pipeline along the flowing direction of materials in the second pipeline. According to the optical fiber feeding system, self-cleaning of the pipeline can be achieved, and the feeding efficiency of the optical fiber feeding system is improved.

Description

Technical Field

[0001] Embodiments of the present application relate to the technical field of coating, and particularly to a self-cleaning pipeline and an optical fiber feeding system. Background Art

[0002] Optical fiber coating refers to coating a brittle bare optical fiber surface with polymer resin materials having different properties. As a key step in optical fiber production, the optical fiber feeding system is an important link to achieve efficient coating of the coating material on the glass fiber surface.

[0003] In the prior art, a centralized feeding system is mostly used in high-speed wire drawing production. However, in the production of special optical fibers, in order to obtain optical fibers with different properties, it is necessary to frequently replace polymer resins with different properties for coating. When replacing the coating material, it is often necessary to disassemble the pipeline for cleaning and use a large amount of cleaning agent, and the whole process is manually operated.

[0004] However, the whole cleaning process is cumbersome and time-consuming, and the efficiency is low. Summary of the Utility Model

[0005] In view of the above problems, embodiments of the present application provide a self-cleaning pipeline and an optical fiber feeding system, which can realize automatic cleaning of the pipeline, improve the speed of replacing the coating material, and further improve the drawing efficiency of special optical fibers.

[0006] In order to achieve the above purpose, embodiments of the present application provide the following technical solutions:

[0007] On the one hand, embodiments of the present application provide a self-cleaning pipeline, which includes: a main pipeline, including a first pipeline and a second pipeline connected in sequence, and there is an included angle between the first pipeline and the second pipeline;

[0008] A coating bucket, connected to the first pipeline, and communicated with a coating cup through the first pipeline and the second pipeline;

[0009] A cleaning agent propulsion device, connected to the first pipeline through a first branch pipeline, and the connection between the first branch pipeline and the first pipeline is arranged closer to the second pipeline than the coating bucket;

[0010] A cleaner emission station, including a first cleaner emission station and a second cleaner emission station. Among them, the cleaner emission station is located at the connection of the first pipeline and the second pipeline. The emission port of the first cleaner emission station is communicated with the first pipeline along the flow direction of the material in the first pipeline, and the emission port of the second cleaner emission station is communicated with the second pipeline along the flow direction of the material in the second pipeline.

[0011] In a possible implementation, it further includes a washer recycling station, including a first washer recycling station and a second washer recycling station. Among them, the first washer recycling station is connected to the first pipeline and is arranged away from the first washer emission station relative to the paint bucket. The second washer recycling station is connected to the second pipeline and is arranged close to the paint cup.

[0012] In a possible implementation, the first washer recycling station and the first pipeline are connected through a cleaning and recycling pipe. The cleaning and recycling pipe includes a first recycling pipe and a second recycling pipe. The first recycling pipe and the second recycling pipe are respectively communicated with the first pipeline. Among them, a first valve communicating with the outside is installed on the first recycling pipe. The second recycling pipe is further connected to the first washer recycling station, and a second valve is further provided on the second recycling pipe.

[0013] In a possible implementation, the first washer recycling station is further connected to the first pipeline through a second branch pipe. The connection of the second branch pipe and the first pipeline is arranged closer to the second pipeline than the connection of the first branch pipe and the first pipeline. A third valve is provided on the first branch pipe, and a fourth valve and a separation recycling station are further provided on the second branch pipe.

[0014] In a possible implementation, the cleaning agent propulsion device is installed on the second recycling pipe. The cleaning agent propulsion device is connected to the first pipeline through the second recycling pipe and the first branch pipe.

[0015] In a possible implementation, a first reversing valve is installed at the outlet of the second recycling pipe;

[0016] The second recycling pipe is further communicated with the second pipeline through a third branch pipe. Among them, a second reversing valve and a fifth valve are further provided on the third branch pipe.

[0017] In a possible implementation, the connection of the third branch pipe and the second pipeline is arranged close to the paint bucket;

[0018] A sixth valve is further provided on the second pipeline. The sixth valve is arranged closer to the paint bucket than the connection of the third branch pipe and the second pipeline.

[0019] In a possible implementation, a seventh valve is provided between the paint bucket and the first pipeline.

[0020] In a possible implementation, the first pipeline is provided with a first emission station solenoid valve for preventing the emission of the washer, and the first emission station solenoid valve is arranged close to the emission end of the first washer emission station;

[0021] The second pipeline is provided with a second emission station solenoid valve for preventing the emission of the washer, and the second emission station solenoid valve is arranged close to the emission end of the second washer emission station;

[0022] When the self-cleaning pipeline is in a non-clean state, the valve stem of the first emission station solenoid valve is located inside the first pipeline, and the valve stem of the second emission station solenoid valve is located inside the second pipeline;

[0023] When the self-cleaning pipeline is in the first cleaning state, the valve stem of the first emission station solenoid valve is located outside the first pipeline, and the valve stem of the second emission station solenoid valve is located inside the second pipeline;

[0024] When the self-cleaning pipeline is in the second cleaning state, the valve stem of the first emission station solenoid valve is located inside the first pipeline, and the valve stem of the second emission station solenoid valve is located outside the second pipeline.

[0025] On the other hand, an optical fiber feeding system provided by an embodiment of the present application includes the above-mentioned possible self-cleaning pipeline.

[0026] In the self-cleaning pipeline and the optical fiber feeding system provided by the embodiments of the present application, by setting a cleaning agent emission station in the main pipeline and connecting the emission port of the first cleaning agent emission station to the first pipeline along the flow direction of the material in the first pipeline, it is convenient to clean the first pipeline in the main pipeline. At the same time, connecting the emission port of the second cleaning agent emission station to the second pipeline along the flow direction of the material in the second pipeline is convenient for cleaning the second pipeline in the main pipeline. Further, a cleaning agent propulsion device is provided and is connected to the first pipeline of the main pipeline through the first branch pipeline, and the connection between the first branch pipeline and the first pipeline is arranged closer to the second pipeline relative to the paint bucket, so that the cleaning agent can quickly enter the second pipeline of the main pipeline, improving the cleaning efficiency and enabling the pipeline to quickly replace the paint.

[0027] In addition to the technical problems solved by the embodiments of the present application described above, the technical features constituting the technical solutions, and the beneficial effects brought by these technical features of the technical solutions, other technical problems that can be solved by the self-cleaning pipeline and the optical fiber feeding system provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation manner. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic structural diagram of the self-cleaning pipeline provided by the embodiment of the present application;

[0030] Figure 2Schematic structural diagram of the optical fiber feeding system provided by the embodiment of the present application.

[0031] Explanation of reference numerals:

[0032] 1 - coating bucket; 2 - second coating bucket; 3 - seventh valve; 4 - eighth valve; 5 - third valve; 6 - fourth valve;

[0033] 701 - first cleaner emission station; 702 - second cleaner emission station;

[0034] 801 - first cleaner recycling station; 802 - second cleaner recycling station;

[0035] 9 - sixth valve; 10 - coating cup; 11 - fifth valve; 12 - second reversing valve; 13 - separation recycling station; 14 - first reversing valve; 15 - cleaner propulsion device; 16 - second valve; 17 - first valve; 18 - ninth valve;

[0036] 19 - first emission station solenoid valve; 20 - second emission station solenoid valve;

[0037] 21 - first pipeline; 22 - second pipeline; 23 - first branch pipeline; 24 - second branch pipeline; 25 - third branch pipeline; 26 - first recovery pipeline; 27 - second recovery pipeline;

[0038] A - central control system; B - motor controller; C - automatic cleaning system; D - cleaner propulsion system. Detailed implementation manners

[0039] As in the background art, the optical fiber feeding system in the prior art has the problem of low coating replacement efficiency. Through research by the inventor, it is found that the reason for this problem is that for the optical fiber feeding system currently, when the coating needs to be replaced, the pipeline needs to be cleaned first, which involves disassembly, cleaning, and reinstallation. The process is cumbersome and all are carried out manually, resulting in difficulty in quickly replacing the coating.

[0040] In view of the above technical problems, the embodiment of the present application provides a self - cleaning pipeline and an optical fiber feeding system. By setting a cleaner propulsion device, which is connected to the first pipeline through the first branch pipeline, and the connection between the first branch pipeline and the first pipeline is arranged closer to the second pipeline than the coating bucket, the cleaner can quickly enter the main pipeline through this cleaner propulsion device. Combined with the set cleaner emission stations for cleaning the main pipeline, the emission port of the first cleaner emission station is located at the connection of the first pipeline and the second pipeline, and the emission port of the second cleaner emission station is communicated with the second pipeline along the flow direction of the material in the second pipeline. Thus, the first pipeline and the second pipeline of the main pipeline can be cleaned respectively, improving the cleaning efficiency. And by coating with the optical fiber feeding system including this self - cleaning pipeline, the problem of inconvenient coating replacement is solved.

[0041] In order to make the above - mentioned objects, features, and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope protected by the present application.

[0042] Figure 1 The structural schematic diagram of the self - cleaning pipeline provided for the embodiments of the present application is as Figure 1 shown, including:

[0043] The main pipeline, including a first pipeline 21 and a second pipeline 22 that are connected in sequence, and there is an included angle between the first pipeline 21 and the second pipeline 22;

[0044] The paint bucket 1 is connected to the first pipeline 21 and is communicated with the paint cup 10 through the first pipeline 21 and the second pipeline 22;

[0045] The cleaning agent propulsion device 15 is connected to the first pipeline 21 through a first branch pipeline 23, and the connection point of the first branch pipeline 23 and the first pipeline 21 is arranged closer to the second pipeline 22 than the paint bucket;

[0046] The cleaner launching station includes a first cleaner launching station 701 and a second cleaner launching station 702. Among them, the cleaner launching station is located at the connection of the first pipeline 21 and the second pipeline 22. The launching port of the first cleaner launching station 701 is communicated with the first pipeline 21 along the flowing direction of the material in the first pipeline 21, and the launching port of the second cleaner launching station 702 is communicated with the second pipeline 22 along the flowing direction of the material in the second pipeline 22.

[0047] Among them, the first pipeline 21 is the straight pipeline in the main pipeline, and the second pipeline 22 is the bent pipeline in the main pipeline. The first cleaner launching station 701 and the second cleaner launching station 702 are correspondingly arranged. The launching port of the first cleaner launching station 701 faces the first pipeline 21 and is communicated with the first pipeline 21 along the flowing direction of the material in the first pipeline 21. The launching port of the second cleaner launching station 702 faces the second pipeline 22 and is communicated with the second pipeline 22 along the flowing direction of the material in the second pipeline 22, which is convenient for respectively launching cleaners to clean the first pipeline 21 and the second pipeline 22.

[0048] In this embodiment, a seventh valve 3 is provided between the paint bucket 1 and the first pipeline 21. When feeding, "feeding" can be selected in the central control system A, so that the optical fiber feeding system automatically enters the feeding state, the motor controller B automatically operates, the seventh valve 3 is opened, and the paint in the paint bucket 1 enters the first pipeline 21 and the second pipeline 22 of the main pipeline in sequence until it enters the coating cup 10, completing the feeding process.

[0049] It should be noted that the valves in the embodiments of the present application are all used to control the flow of fluids, including the flow of paint, air, cleaning agent, etc. For the type of valve, it can be an automatic valve, such as a solenoid valve, a hydraulic valve, a pneumatic valve, etc. This embodiment does not limit it here.

[0050] After coating, in order to replace the paint, "select cleaning agent" needs to be clicked in the central control system A to make the pipeline enter the self-cleaning state, and the cleaning agent is pushed into the self-cleaning pipeline through the cleaning agent pushing device 15. Among them, the cleaning agent pushing device 15 is controlled by the cleaning agent pushing system D. The cleaning agent corresponding to the paint used in the paint process can be selected in the cleaning agent pushing system D, and the pressure and temperature values are input to facilitate the cleaning of the main pipeline.

[0051] In order to prevent the situation of the cleaner emitting errors during self-cleaning of the pipeline, in a possible implementation manner, the first pipeline 21 is provided with a first emission station solenoid valve 19 for preventing the cleaner from emitting, and the first emission station solenoid valve 19 is arranged close to the emission end of the first cleaner emission station 701;

[0052] The second pipeline 22 is provided with a second emission station solenoid valve 20 for preventing the cleaner from emitting, and the second emission station solenoid valve 20 is arranged close to the emission end of the second cleaner emission station 702;

[0053] When the self-cleaning pipeline is in the non-cleaning state, the valve stem of the first emission station solenoid valve 19 is located in the first pipeline 21, and the valve stem of the second emission station solenoid valve 20 is located in the second pipeline 22;

[0054] When the self-cleaning pipeline is in the first cleaning state, the valve stem of the first emission station solenoid valve 19 is located outside the first pipeline 21, and the valve stem of the second emission station solenoid valve 20 is located in the second pipeline 22;

[0055] When the self-cleaning pipeline is in the second cleaning state, the valve stem of the first emission station solenoid valve 19 is located in the first pipeline 21, and the valve stem of the second emission station solenoid valve 20 is located outside the second pipeline 22.

[0056] Among them, the first cleaning state can refer to the state where the self-cleaning pipeline is cleaning the first pipeline 21, and the second cleaning state can refer to the state where the self-cleaning pipeline is cleaning the second pipeline 22.

[0057] Exemplarily, the motor controller B controls the cleaning agent propulsion device 15 to convey the cleaning agent to the first pipeline 21 through the first branch pipe 23 until it reaches the connection point of the first pipeline 21 and the second pipeline 22. The cleaning device emission station located at this connection point can automatically select the second cleaning device emission station 702 according to the flow direction of the cleaning agent. A cleaning device is emitted from the emission port of the second cleaning device emission station 702. The cleaning device mixes with the cleaning agent and cleans the second pipeline 22 along the flow direction of the material in the second pipeline 22. During this process, the valve stem of the first emission station solenoid valve 19 is located in the first pipeline 21 and can block the cleaning device in the first cleaning device emission station 701 to prevent it from entering the pipeline. The valve stem of the second emission station solenoid valve 20 is located outside the second pipeline 22, enabling the cleaning device in the second cleaning device emission station 702 to clean the second pipeline 22.

[0058] When the cleaning device finishes cleaning the second pipeline 22, to prevent the cleaning device from moving in the second pipeline 22 and affecting the subsequent cleaning agent transmission process, in a possible implementation, a cleaning device recycling station is further included, which includes a first cleaning device recycling station 801 and a second cleaning device recycling station 802. Among them, the first cleaning device recycling station 801 is connected to the first pipeline 21 and is arranged away from the first cleaning device emission station 701 relative to the paint bucket 1. The second cleaning device recycling station 802 is connected to the second pipeline 22 and is arranged close to the paint cup 10.

[0059] After the cleaning device mixes with the cleaning agent and finishes cleaning the second pipeline 22, it can reach the second cleaning device recycling station 802 along the second pipeline 22 for recycling.

[0060] In a possible implementation manner, the first cleaning device recycling station 801 and the first pipeline 21 are connected through a cleaning and recycling pipe. The cleaning and recycling pipe includes a first recycling pipe 26 and a second recycling pipe 27. The first recycling pipe 26 and the second recycling pipe 27 are respectively communicated with the first pipeline 21. Among them, a first valve 17 communicating with the outside is installed on the first recycling pipe 26. The second recycling pipe 27 is also connected to the first cleaning device recycling station 801, and a second valve 16 is further provided on the second recycling pipe 27.

[0061] The first recycling pipe 26 is communicated with the first pipeline 21 of the main pipeline and is a straight pipeline. The second recycling pipe 27 is vertically arranged with the first recycling pipe 26 and is also communicated with the first pipeline 21. When the cleaning device is in the first pipeline 21, the cleaning device can be pushed back into the first cleaning device emission station 701 through the first valve 17.

[0062] After the cleaning of the second pipeline 22 is completed, the cleaner reaches and enters the second cleaner recycling station 802 near the coating cup 10. In order to restore the cleaner, the sixth valve 9 is closed to prevent the cleaning agent from entering the coating cup 10, the second reversing valve 12 is closed to only allow the cleaning agent to pass unidirectionally and prevent the cleaning agent from reversing, and the fifth valve 11 on the third branch pipe 25 is opened. The cleaning agent is transported by the cleaning agent propulsion device 15 through the third branch pipe 25 to the second cleaner recycling station 802 on the second pipeline 22. At this time, the cleaner is located in the second cleaner recycling station 802. Thus, the cleaner mixes with the cleaning agent and cleans the second pipeline 22 again in the direction opposite to the flow of the material in the second pipeline 22, and returns to the second cleaner launching station 702.

[0063] When the cleaning of the second pipeline 22 is completed, there may be excess cleaning agent remaining at the connection between the first pipeline 21 and the second pipeline 22. Therefore, in this embodiment, the first cleaner recycling device 801 is also connected to the first pipeline 21 through the second branch pipe 24. The connection between the second branch pipe 24 and the first pipeline 21 is arranged closer to the second pipeline 22 than the connection between the first branch pipe 23 and the first pipeline 21. The third valve 5 is provided on the first branch pipe 23, and the fourth valve 6 and the separation and recycling device 13 are also provided on the second branch pipe 24.

[0064] In addition, in order to complete the recycling of the cleaning agent and realize the reversing of the cleaning agent in the pipeline, a first reversing valve 14 is installed at the outlet of the second recovery pipe 27;

[0065] The second recovery pipe 27 is also communicated with the second pipeline 22 through the third branch pipe 25. Among them, the second reversing valve 12 and the fifth valve 11 are also provided on the third branch pipe 25.

[0066] Furthermore, the connection between the third branch pipe 25 and the second pipeline 22 is arranged close to the paint bucket 1;

[0067] The sixth valve 9 is also provided on the second pipeline 22. The sixth valve ⑨ is arranged closer to the paint bucket 1 than the connection between the third branch pipe 25 and the second pipeline 22.

[0068] In one example, after the cleaner returns to the second cleaner launching station 702, the second cleaner launching station 702 is closed, and the valve stem of the second launching station solenoid valve 20 is arranged in the second pipeline 22 to prevent the cleaner from being launched. The third valve 5 and the first reversing valve 14 are opened, so that the cleaning agent enters the first reversing valve 14 through the first branch pipe 23, and further enters the separation and recycling device 13 on the second branch pipe 24 by the first reversing valve 14, preventing the cleaning agent from accumulating at the connection between the first pipeline 21 and the second pipeline 22.

[0069] In another example, after the cleaning agent recovery is completed, the second reversing valve 12 is continuously closed. As in the aforementioned cleaning agent advancement process, when the cleaning agent enters the second pipeline 22 through the third branch pipe 25 and is transmitted to the connection between the first pipeline 21 and the second pipeline 22, the first cleaner launching station 701 launches the cleaner and cleans the first pipeline 21 along the opposite direction of the material transmission in the first pipeline 21 until it reaches and enters the first cleaner recovery station 801. At the same time, the cleaning agent follows the cleaner to the intersection of the first pipeline 21, the first recovery pipe 26, and the second recovery pipe 27. During this process, the valve stem of the solenoid valve 19 of the first launching station is located outside the first pipeline 21, so that the cleaner can be launched smoothly, and the valve stem of the solenoid valve 20 of the second launching station is located inside the second pipeline 22 to prevent the cleaner in the second cleaner launching station 702 from being launched incorrectly.

[0070] Furthermore, in order to prevent the cleaning agent from accumulating at the intersection of the first pipeline 21, the first recovery pipe 26, and the second recovery pipe 27, the ninth valve 18 is closed to prevent the cleaning agent from entering the cleaning agent propulsion device 15, the first valve 17 on the first recovery pipe 26 that is connected to the outside is closed to prevent the cleaning agent from being transmitted to the outside of the self-cleaning pipe, and the first reversing valve 14 is opened to achieve reversal, so that the remaining cleaning agent enters the separation and recovery device 13 on the second branch pipe 24 through the second valve 16 and the first reversing valve 14 on the second recovery pipe 27.

[0071] After the cleaning agent recovery is completed, the first valve 17 is opened and the cleaner located at the first cleaner recovery station 801 is pushed back to the first cleaner launching station 701. At this point, the pipeline self-cleaning process is completed. At the same time, the cleaners are restored to the cleaner launching station, and the cleaning agent is recovered to the separation recovery station 13 to facilitate the next cleaning process.

[0072] After completing the above pipeline self-cleaning process, click the "Change Feed" button on the central controller to control the motor controller B to open the eighth valve 4 above the second paint bucket 2, and press another paint into the paint cup 10 through the clean main pipe.

[0073] The self-cleaning pipe provided in the embodiment of the present application can transport the cleaning agent into the pipe through the cleaning agent propulsion device 15, and further launch the cleaner through the cleaner launching station to automatically clean the pipe. On the other hand, through the interaction between the valve, branch pipe and recovery pipe, the cleaning agent can also be recovered and the cleaner can be restored to the cleaner launching station. This not only enables continuous self-cleaning of the pipe, but also helps to reduce the amount of cleaning agent used, thereby achieving the purpose of reducing waste and being environmentally friendly.

[0074] Figure 2 A schematic diagram of the structure of the optical fiber feeding system provided in the embodiment of the present application is shown as follows: Figure 2 Shown, including:

[0075] A central control system A is used to control the process of the entire optical fiber feeding system and further control the motor controller B;

[0076] The motor controller B is used to control the valves, solenoid valves, and reversing valves in the pipeline, thereby realizing the self-cleaning process of the pipeline;

[0077] An automatic cleaning system C includes a self-cleaning pipeline;

[0078] A cleaning agent propulsion system D is used to control the cleaning agent propulsion device 15 to convey the cleaning agent into the self-cleaning pipeline.

[0079] The optical fiber feeding system provided by the embodiment of the present application, through the regulation of the central control system A and the combined action of the motor controller B, the automatic cleaning system C, and the cleaning agent propulsion device D, completes the feeding process and the pipeline self-cleaning process, without manual disassembly of the pipeline, realizes automatic control, and improves the optical fiber feeding efficiency.

[0080] In the present specification, the embodiments or implementation manners are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other.

[0081] It should be noted that the "one embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes the specific features, structures, or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. Moreover, when combining a specific feature, structure, or characteristic with an embodiment, implementing such a feature, structure, or characteristic in combination with other embodiments, whether explicitly or implicitly described, is within the knowledge scope of those skilled in the art.

[0082] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A self-cleaning pipeline, characterized in that, Comprising: The main pipeline, including a first pipeline (21) and a second pipeline (22) connected in sequence, and there is an included angle between the first pipeline (21) and the second pipeline (22); The paint bucket (1), connected to the first pipeline (21), and communicated with the coating cup (10) through the first pipeline (21) and the second pipeline (22); The cleaning agent propulsion device (15), connected to the first pipeline (21) through a first branch pipeline (23), and the connection of the first branch pipeline (23) and the first pipeline (21) is arranged closer to the second pipeline (22) relative to the paint bucket; The cleaner emission station, including a first cleaner emission station (701) and a second cleaner emission station (702), wherein the cleaner emission station is located at the connection of the first pipeline (21) and the second pipeline (22), the emission port of the first cleaner emission station (701) is communicated with the first pipeline (21) along the flow direction of the material in the first pipeline (21), and the emission port of the second cleaner emission station (702) is communicated with the second pipeline (22) along the flow direction of the material in the second pipeline (22).

2. The pipeline according to claim 1, wherein, Further comprising: The cleaner recycling station, including a first cleaner recycling station (801) and a second cleaner recycling station (802), wherein the first cleaner recycling station (801) is connected to the first pipeline (21) and is arranged farther from the first cleaner emission station (701) relative to the paint bucket (1), and the second cleaner recycling station (802) is connected to the second pipeline (22) and is arranged closer to the coating cup (10).

3. The pipeline according to claim 2, wherein The first cleaner recycling station (801) is connected to the first pipeline (21) through a cleaning recovery pipe, the cleaning recovery pipe includes a first recovery pipe (26) and a second recovery pipe (27), the first recovery pipe (26) and the second recovery pipe (27) are respectively communicated with the first pipeline (21), wherein a first valve (17) communicating with the outside is installed on the first recovery pipe (26), the second recovery pipe (27) is further connected to the first cleaner recycling station (801), and a second valve (16) is further provided on the second recovery pipe (27).

4. The pipeline according to claim 2, characterized in that, The first cleaner recycling station (801) is further connected to the first pipeline (21) through a second branch pipeline (24), the connection of the second branch pipeline (24) and the first pipeline (21) is arranged closer to the second pipeline (22) relative to the connection of the first branch pipeline (23) and the first pipeline (21), a third valve (5) is provided on the first branch pipeline (23), and a fourth valve (6) and a separation recycling station (13) are further provided on the second branch pipeline (24).

5. The pipeline according to claim 3, characterized in that, The cleaning agent propulsion device (15) is installed on the second recovery pipe (27), and the cleaning agent propulsion device (15) is connected to the first pipeline (21) through the second recovery pipe (27) and the first branch pipeline (23).

6. The pipeline according to claim 5, characterized in that, A first reversing valve (14) is installed at the outlet of the second recovery pipe (27); The second recovery pipe (27) is also communicated with the second pipeline (22) through a third branch pipe (25), wherein a second reversing valve (12) and a fifth valve (11) are further provided on the third branch pipe (25).

7. The pipeline according to claim 6, characterized in that, The connection part of the third branch pipe (25) and the second pipeline (22) is arranged close to the paint bucket (1); A sixth valve (9) is further provided on the second pipeline (22), and the sixth valve (9) is arranged closer to the paint bucket (1) than the connection part of the third branch pipe (25) and the second pipeline (22).

8. The pipeline according to claim 1, characterized in that, A seventh valve (3) is arranged between the paint bucket (1) and the first pipeline (21).

9. The pipeline according to claim 1, characterized in that, The first pipeline (21) is provided with a first emission station solenoid valve (19) for preventing the cleaner from emitting, and the first emission station solenoid valve (19) is arranged close to the emission end of the first cleaner emission station (701); The second pipeline (22) is provided with a second emission station solenoid valve (20) for preventing the cleaner from emitting, and the second emission station solenoid valve (20) is arranged close to the emission end of the second cleaner emission station (702); When the self-cleaning pipeline is in a non-clean state, the valve stem of the first emission station solenoid valve (19) is located in the first pipeline (21), and the valve stem of the second emission station solenoid valve (20) is located in the second pipeline (22); When the self-cleaning pipeline is in a first clean state, the valve stem of the first emission station solenoid valve (19) is located outside the first pipeline (21), and the valve stem of the second emission station solenoid valve (20) is located in the second pipeline (22); When the self-cleaning pipeline is in a second clean state, the valve stem of the first emission station solenoid valve (19) is located in the first pipeline (21), and the valve stem of the second emission station solenoid valve (20) is located outside the second pipeline (22).

10. An optical fiber feeding system, characterized in that, Comprising the self-cleaning pipeline according to any one of claims 1 to 9.

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