Optical fiber bundling and oil sealing system for central tube type optical cable

Abstract

The application discloses a kind of optical fiber collection and oil sealing systems of central tube type optical cable, it is related to optical cable technical field, it can solve the problem of poor water leakage prevention performance of optical cable in prior art.The application embodiment discloses a kind of optical fiber collection and oil sealing systems of central tube type optical cable, including take-up assembly and spray knead collection integrated frame, and pump oil component;Take-up assembly includes at least two for gathering multiple optical fibers in dispersed state into a group in single-beam state conical guide cylinder;Spray knead collection integrated frame includes collection block, and horn-shaped oil spray frame fixed on collection block;Horn-shaped oil spray frame is equipped with oil liquid sprayer, and knead line component, the number and azimuth distribution of oil liquid sprayer and knead line component are same with the number and azimuth distribution of conical guide cylinder;The oil liquid output end of pump oil component is communicated with oil liquid sprayer.

Description

Technical Field

[0001] This invention relates to the field of optical cable manufacturing technology, and more specifically to an optical fiber bundling and sealing system for a central tube type optical cable. Background Technology

[0002] Central tube optical cables typically contain dozens of optical fibers, all encased within a tube. During production, multiple fibers are usually laid into the tube simultaneously, and the winding end of the production line pulls the cable back in. However, currently produced central tube optical cables are prone to water leakage along the fiber axis. Water ingress into the fiber can lead to quality issues such as cable performance and lifespan.

[0003] The inventors discovered that during the production process of optical fibers, for central tube optical cables with fewer fibers, the gaps between the fibers are smaller, making them less prone to water leakage. However, as the number of fibers inside the tube increases, especially when it exceeds 48, water leakage is likely to occur during subsequent use due to the excessive gaps between the fibers, causing the optical cable's water-proof performance to fail to meet requirements.

[0004] Based on the above background, the inventors designed a fiber optic cable bundling and sealing oil system for a central tube type optical cable, which solves at least one of the above problems, and thus, this application is filed. Summary of the Invention

[0005] The purpose of this application is to provide an optical fiber bundling and sealing oil system for a central tube optical cable, which solves the problem of poor water leakage prevention performance of the existing central tube optical cable.

[0006] To address the above problems, this application provides the following technical solution:

[0007] This application provides an optical fiber take-up and sealing oil system for a central tube type optical cable, including a take-up assembly and a spray-and-crush take-up frame arranged sequentially along the optical fiber travel direction, as well as an oil pump assembly.

[0008] The take-up assembly includes at least two tapered tubes for bringing together multiple dispersed optical fibers into a single bundle.

[0009] The spray-knead-and-collect integrated frame includes a collection block for collecting multiple groups of single-bundle optical fibers into a bundle, and a horn-shaped oil spray frame fixed to the end of the collection block facing the conical guide tube.

[0010] The horn-shaped oil spraying frame is equipped with an oil nozzle for spraying oil onto the optical fiber in a single bundle state, and a yarn-rubbing assembly that presses against the optical fiber in a single bundle state and rubs it based on its vibration during travel. The number and orientation of the oil nozzle and the yarn-rubbing assembly are the same as the number and orientation of the conical guide tube.

[0011] The oil output end of the oil pump assembly is connected to the oil nozzle.

[0012] Optionally, it also includes a compression assembly for simultaneously pressing multiple groups of single-bundle optical fibers to reduce the included angle when the multiple groups of single-bundle optical fibers are bundled into a whole state. The compression assembly is located between the take-up assembly and the spray-crush take-up frame.

[0013] The take-up assembly, the compression assembly, and the take-up block of the spray-knead take-up integrated frame constitute a three-stage take-up module that gathers multiple loose optical fibers into a whole.

[0014] Optionally, the gathering block is provided with a gathering through hole, which includes a constant diameter section and a horn-shaped reduced diameter section. The reduced diameter section is located on the side of the gathering block near the horn-shaped fuel injector.

[0015] A chamfered structure is provided between the equal diameter section and the reduced diameter section.

[0016] Optionally, the pressure assembly includes a horizontally arranged mounting platform and a side plate vertically arranged on one side of the mounting platform, as well as two vertical pressure rollers and two horizontal pressure rollers, with the two vertical pressure rollers mounted on the mounting platform and the two horizontal pressure rollers mounted on the side plate.

[0017] Multiple groups of optical fibers in single-bundle state pass through the channel formed by two vertical pressure rollers and two horizontal pressure rollers;

[0018] The mounting platform is provided with strip-shaped adjustment holes, and at least one vertical pressure roller shaft is mounted on the mounting platform through the strip-shaped adjustment holes;

[0019] The pressure assembly also includes a flipping shaft and a bearing. The side plate has a notch. The upper transverse pressure roller shaft is installed at the notch position of the side plate through the bearing and the flipping shaft. The central axis of the flipping shaft is perpendicular to the axial direction of both the vertical pressure roller shaft and the transverse pressure roller shaft. One end of the flipping shaft is connected to the side plate, and the other end is connected to the bearing. The upper transverse pressure roller shaft is installed on the bearing.

[0020] Optionally, the converging block has an annular oil collecting groove on the side facing away from the horn-shaped fuel injector.

[0021] It also includes a cap installed on the annular oil collecting groove, and a connector provided on the converging block. The oil output end of the pump assembly is connected to the connector, and the connector is connected to the annular oil collecting groove.

[0022] The converging block is also provided with multiple oil distribution channels. One end of the oil distribution channel is connected to the annular oil collection groove, and the other end is connected to the oil nozzle through the oil flow channel inside the horn-shaped oil spray frame. The number of oil distribution channels is the same as the number of oil nozzles.

[0023] Optionally, the horn-shaped fuel injector includes inclined rods, the number and orientation of which are the same as the number and orientation of the conical guide tubes;

[0024] The yarn-twisting assembly includes a mounting sleeve fitted onto a diagonal rod, a bracket movably connected to the mounting sleeve, a top-pressure spring fitted onto the bracket, and a yarn-twisting roller rotatably connected to the bracket. One end of the top-pressure spring presses against the bracket, and the other end presses against the mounting sleeve.

[0025] Optionally, it also includes a traction component for providing auxiliary traction force for the optical fiber to travel, the traction component being located at the rear end of the spray-knead-and-take-up integrated frame along the direction of optical fiber travel;

[0026] The traction assembly includes a gantry frame, a fixed plate, a fixed traction wheel, a movable pressure wheel, a sliding plate, a sliding frame, and a buffer spring;

[0027] The fixed traction wheel is rotatably connected to the fixed plate and fixedly connected to the portal frame through the fixed plate. The sliding plate is slidably connected to the portal frame vertically. The movable pressure wheel is rotatably connected to the sliding plate. The sliding frame is portal-shaped and slidably connected to the sliding plate. The top of the sliding frame is connected to the portal frame. The buffer spring is fitted onto the sliding frame. One end of the buffer spring presses against the sliding plate, and the other end presses against the top of the sliding frame.

[0028] Optionally, the traction assembly further includes an adjusting screw rotatably connected to the gantry frame, the adjusting screw passing through the sliding frame and threadedly connected thereto;

[0029] Both the fixed traction wheel and the movable pressure wheel are fitted with elastic buffer layers.

[0030] Optionally, the yarn-kneading assembly further includes a locking screw, which is threadedly connected to the mounting sleeve, and the mounting sleeve is fixed to the inclined rod of the horn-shaped oil spray frame by the locking screw;

[0031] The central axis of the bracket is set perpendicular to the diagonal bar.

[0032] Optionally, the oil pump assembly includes a drive motor and a pump head, as well as an oil collection box located directly below the spray-knead-collection integrated frame. The bottom of the oil collection box is connected to the oil inlet of the pump head, and the oil outlet of the pump head is connected to the oil nozzle of the spray-knead-collection integrated frame.

[0033] The beneficial effects of this invention are:

[0034] This application, by setting up a take-up assembly, a spray-and-rub take-up integrated frame, and an oil pump assembly along the optical fiber's travel path, enables the application to spray oil onto the optical fiber during the process of bundling it into a bundle. This not only solves the conventional problem of water leakage prevention in optical cables with a small number of optical fibers, but also addresses the issue of insufficient water leakage prevention performance in optical cables with a large number of optical fibers, where even with oil spraying, the oil cannot penetrate the central area of ​​the fiber during high-speed movement, even after the fiber is sheathed. This effectively solves the problem of poor water leakage prevention performance in existing technologies for optical cables with a large number of optical fibers and central sheaths.

[0035] In other words, the core concept of this application is to divide the process of bundling multiple optical fibers into one into multiple stages, and to spray oil and knead the fibers at a special position near the last bundling stage, so as to ensure that even if there are many optical fibers, the oil can fully wet each optical fiber, ensuring that the optical fibers are bundled into a whole and that the fiber optic cable is sealed in a sleeve to prevent water leakage. Attached Figure Description

[0036] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0037] Figure 2 This is a schematic diagram of the structure of the spray-knead-collecting integrated frame after it has been rotated 45° in the embodiment of this application.

[0038] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0039] Figure 4 This is a right-side structural schematic diagram of the spray-knead-collection integrated frame in the embodiments of this application.

[0040] Figure 5 This is a top view of the beam compression assembly in an embodiment of this application.

[0041] Figure 6 This is a rear view schematic diagram of the traction component in an embodiment of this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1-Take-up assembly, 11-Conical guide cylinder, 12-Limiting roller shaft, 13-Mounting frame, 2-Pressure assembly, 21-Mounting platform, 211-Strip adjustment hole, 22-Side plate, 221-Notch, 23-Vertical pressure roller shaft, 24-Transverse pressure roller shaft, 25-Bearing, 26-Tilting shaft, 3-Spray-knead-take-up integrated frame, 31-Take-up block, 311-Annular oil collection groove, 312-Oil distribution channel, 313-Connector, 314-Take-up through hole, 32-Bell-shaped oil spray frame, 321- Oil flow channel, 322-oil nozzle, 33-cap, 34-thread twisting assembly, 341-mounting sleeve, 342-bracket, 343-top pressure spring, 344-thread twisting roller, 345-locking screw, 4-traction assembly, 41-gantry frame, 42-fixed plate, 43-fixed traction wheel, 44-movable pressure roller, 45-sliding plate, 46-sliding frame, 47-buffer spring, 48-adjusting screw, 5-oil pump assembly, 51-drive motor, 52-pump head, 53-oil collection box. Detailed Implementation

[0044] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0045] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "longitudinal," "lateral," "horizontal," "inner," "outer," "front," "rear," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] like Figures 1 to 6As shown, this embodiment provides an optical fiber take-up and sealing oil system for a central tube type optical cable, including a take-up assembly 1 and a spray-knead take-up frame 3 arranged sequentially along the optical fiber travel direction, as well as an oil pump assembly 5;

[0049] The take-up assembly 1 includes at least two tapered guide tubes 11 for gathering multiple dispersed optical fibers into a single bundle.

[0050] The spray-knead-and-collect integrated frame 3 includes a collection block 31 for collecting multiple groups of single-bundle optical fibers into a bundle state, and a horn-shaped oil spray frame 32 fixed to one end of the collection block 31 facing the conical guide tube 11.

[0051] The horn-shaped oil spraying frame 32 is provided with an oil nozzle 322 for spraying oil onto the optical fiber in a single bundle state, and a yarn-rubbing assembly 34 that presses against the optical fiber in a single bundle state and rubs it based on its vibration during travel. The number and orientation of the oil nozzle 322 and the yarn-rubbing assembly 34 are the same as the number and orientation of the conical guide tube 11.

[0052] The oil output end of the oil pump assembly 5 is connected to the oil nozzle 322.

[0053] This embodiment, by setting up a take-up assembly 1, a spray-and-rub take-up integrated frame 3, and an oil pump assembly 5 along the optical fiber's travel path, enables the application to spray oil onto the optical fiber during the process of bundling it into a bundle. This not only solves the conventional problem of water leakage in optical cables with a small number of optical fibers, but also addresses the issue that when there are many optical fibers, even if oil is sprayed onto the fibers during high-speed movement, the oil cannot penetrate the fibers in the central area, resulting in insufficient water leakage performance after the optical fiber is sheathed. This effectively solves the problem of poor water leakage performance in existing technologies for optical cables with a large number of optical fibers and central sheaths.

[0054] In other words, the core concept of this embodiment is to divide the process of bundling multiple optical fibers into one into multiple stages, and to spray oil and knead the fibers at a special position near the last bundling stage, so as to ensure that even if there are many optical fibers, the oil can fully wet each optical fiber, and ensure the water-proof performance after the optical fibers are bundled into a whole and put into the sleeve.

[0055] In this embodiment, as Figure 1 and Figure 5 As shown, it also includes a compression assembly 2 for simultaneously pressing multiple groups of optical fibers in a single bundle state to reduce the included angle when the multiple groups of optical fibers in a single bundle state are bundled into a whole state. The compression assembly 2 is located between the take-up assembly 1 and the spray-crush take-up frame 3.

[0056] The take-up assembly 1, the compression assembly 2, and the take-up block 31 of the spray-knead take-up integrated frame 3 constitute a three-stage take-up module that gathers multiple loose optical fibers into a whole.

[0057] This embodiment uses a three-stage gathering module consisting of a take-up assembly 1, a compression assembly 2, and a gathering block 31 of a spray-and-crush integrated frame 3. This module can gather multiple fibers in a loose state multiple times. On the one hand, it avoids the problem of needing large tension to gather the fibers at once, which may damage the fibers. On the other hand, it can take advantage of the special transition stage of the fibers from a loose state to a bundled state. That is, when multiple fibers are in a single bundle, each fiber has little plastic. Oil can be sprayed through the oil nozzle 322 on the horn-shaped oil spray frame 32 to fully wet each fiber. Spraying oil on fibers in a loose or bundled state is either too complex and requires adapting to multiple fibers with extremely complex spatial distribution, or the oil spraying effect is unstable and is prone to problems such as insufficient oil wetting and failure to meet the water-proof performance standards.

[0058] In this embodiment, as Figure 2 As shown, the gathering block 31 is provided with a gathering through hole 314. The gathering through hole 314 includes a constant diameter section and a horn-shaped reduced diameter section. The reduced diameter section is located on the side of the gathering block 31 near the horn-shaped fuel injector 32.

[0059] A chamfered structure is provided between the equal-diameter section and the reduced-diameter section to avoid damage during the process of bundling the optical fiber into a complete bundle.

[0060] In this embodiment, as Figure 5 As shown, the pressure assembly 2 includes a horizontally arranged mounting platform 21 and a side plate 22 vertically arranged on one side of the mounting platform 21, as well as two vertical pressure rollers 23 and two horizontal pressure rollers 24. The two vertical pressure rollers 23 are mounted on the mounting platform 21, and the two horizontal pressure rollers 24 are mounted on the side plate 22.

[0061] Multiple groups of optical fibers in single-bundle state pass through the channel formed by two vertical pressure rollers 23 and two horizontal pressure rollers 24;

[0062] The mounting platform 21 is provided with a strip-shaped adjustment hole 211. At least one vertical pressure roller shaft 23 is mounted on the mounting platform 21 through the strip-shaped adjustment hole 211. By setting the strip-shaped adjustment hole 211, it is convenient to adjust the distance between the two vertical pressure roller shafts 23, and to adjust the pressing strength of the optical fiber.

[0063] The compression assembly 2 also includes a flipping shaft 26 and a bearing 25. The side plate 22 has a notch 221. The upper transverse compression roller 24 is installed at the notch 221 of the side plate 22 through the bearing 25 and the flipping shaft 26. The central axis of the flipping shaft 26 is perpendicular to the axial direction of both the vertical compression roller 23 and the transverse compression roller 24. One end of the flipping shaft 26 is connected to the side plate 22, and the other end is connected to the bearing 25. The upper transverse compression roller 24 is installed on the bearing 25. By setting the compression assembly 2, the optical fibers in a single bundle state can be gathered together. The transverse compression roller 24 is installed at the notch 221 of the side plate 22 through the bearing 25 and the flipping shaft 26, which allows the upper transverse compression roller 24 to be flipped to a vertical state, making it convenient for operators to make adjustments.

[0064] In this embodiment, as Figure 2 As shown, the converging block 31 has an annular oil collecting groove 311 on the side opposite to the horn-shaped oil injector frame 32;

[0065] It also includes a cap 33 installed on the annular oil collecting groove 311, and a connector 313 provided on the converging block 31. The oil output end of the pump assembly 5 is connected to the connector 313, and the connector 313 is connected to the annular oil collecting groove 311.

[0066] The converging block 31 is also provided with multiple oil distribution channels 312. One end of the oil distribution channel 312 is connected to the annular oil collection groove 311, and the other end is connected to the oil nozzle 322 through the oil channel 321 inside the horn-shaped oil spray frame 32. The number of oil distribution channels 312 is the same as the number of oil nozzles 322. In this embodiment, by setting the cap 33, it is convenient to perform machining on the converging block 31, and at the same time, it is also convenient to perform subsequent cleaning and other operations. In this embodiment, the horn-shaped oil spray frame 32 is welded to the converging block 31.

[0067] In this embodiment, the horn-shaped fuel injector 32 includes inclined rods, and the number and orientation of the inclined rods are the same as the number and orientation of the conical guide tubes 11.

[0068] The yarn twisting assembly 34 includes a mounting sleeve 341 fitted onto the inclined rod, a bracket 342 movably connected to the mounting sleeve 341, a top pressure spring 343 fitted onto the bracket 342, and a yarn twisting roller 344 rotatably connected to the bracket 342. One end of the top pressure spring 343 presses against the bracket 342, and the other end presses against the mounting sleeve 341.

[0069] In this embodiment, the oil nozzle 322 and the yarn-rubbing assembly 34 are both mounted on the inclined rods, and the number and orientation of the inclined rods are the same as the number and orientation of the conical guide tubes 11. This allows the oil nozzle 322 and the yarn-rubbing assembly 34 to perform targeted oil spraying and yarn-rubbing actions on each single-bundle optical fiber.

[0070] In this embodiment, the optical fiber will experience irregular fluctuations and jitters as it travels. The twisting assembly 34, pressing against the optical fiber, will also jitter along with the fiber. This causes the twisting roller 344 of the twisting assembly 34 to continuously tumble and twist the optical fiber. Even if some fibers are not fully immersed in the oil after being sprayed onto the single-bundle optical fiber, the tumbling roller 344 will immerse them in the oil, ensuring that the gaps between the fibers are fully filled with oil after the fiber is bundled into a complete bundle.

[0071] In this embodiment, as Figure 1 and Figure 6 As shown, it also includes a traction component 4 for providing auxiliary traction force for the optical fiber to travel, and the traction component 4 is located at the rear end of the spray-knead-and-collect frame 3 along the optical fiber travel direction.

[0072] The traction assembly 4 includes a gantry frame 41, a fixed plate 42, a fixed traction wheel 43, a movable pressure wheel 44, a sliding plate 45, a sliding frame 46, and a buffer spring 47.

[0073] The fixed traction wheel 43 is rotatably connected to the fixed plate 42 and fixedly connected to the portal frame 41 through the fixed plate 42. The sliding plate 45 is slidably connected to the portal frame 41 in the vertical direction. The movable pressure wheel 44 is rotatably connected to the sliding plate 45. The sliding frame 46 is portal-shaped and slidably connected to the sliding plate 45. The top of the sliding frame 46 is connected to the portal frame 41. The buffer spring 47 is fitted on the sliding frame 46. One end of the buffer spring 47 presses against the sliding plate 45, and the other end presses against the top of the sliding frame 46.

[0074] By setting up the traction component 4, the movement of the optical fiber can be pulled, providing auxiliary traction force and avoiding problems such as the optical fiber sagging due to insufficient tension.

[0075] In this embodiment, the spray-knead-and-collect integrated frame 3 is fixed on the gantry frame 41 of the traction assembly 4.

[0076] In this embodiment, the traction assembly 4 also includes an adjusting screw 48 that is rotatably connected to the gantry frame 41. The adjusting screw 48 passes through the sliding frame 46 and is threadedly connected to it, which facilitates the adjustment of the height of the movable pressure roller 44 of the traction assembly 4, thereby making it easier for the operator to adjust to a suitable traction force.

[0077] Both the fixed traction wheel 43 and the movable pressure wheel 44 are fitted with elastic buffer layers to prevent damage to the optical fiber.

[0078] In this embodiment, the yarn-twisting assembly 34 further includes a locking screw 345, which is threadedly connected to the mounting sleeve 341. The mounting sleeve 341 is fixed to the inclined rod of the trumpet-shaped oil spray frame 32 by the locking screw 345.

[0079] The central axis of the bracket 342 is set perpendicular to the diagonal bar. In this embodiment, the position of the yarn twisting assembly 34 is easily adjusted by setting a locking screw 345.

[0080] In this embodiment, the oil pump assembly 5 includes a drive motor 51 and a pump head 52, as well as an oil collection box 53 located directly below the spray-knead-collection integrated frame 3. The bottom of the oil collection box 53 is connected to the oil inlet end of the pump head 52, and the oil outlet end of the pump head 52 is connected to the oil nozzle 322 of the spray-knead-collection integrated frame 3. In this embodiment, both the oil inlet end and the oil outlet end of the pump head 52 are provided with flexible hoses, which are connected to the oil collection box 53 and the oil nozzle 322 of the spray-knead-collection integrated frame 3. The drive motor 51 and the pump head 52 in this embodiment are existing structures and will not be described in detail here.

[0081] In this embodiment, the take-up assembly 1 further includes a limiting roller 12 and a mounting frame 13. Two limiting rollers 12 are provided and vertically mounted on the mounting frame 13, which play a preliminary limiting role for the optical fiber in the loose state.

[0082] It is understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A fiber optic cable bundling and sealing system for a central tube type optical cable, characterized in that, It includes a take-up assembly (1) and a spray-knead take-up frame (3) arranged sequentially along the direction of optical fiber travel, as well as an oil pump assembly (5). The take-up assembly (1) includes at least two tapered tubes (11) for gathering multiple dispersed optical fibers into a single bundle. The spray-knead-and-collect integrated frame (3) includes a collection block (31) for collecting multiple groups of single-bundle optical fibers into a bundle state, and a horn-shaped oil spray frame (32) fixed on the end of the collection block (31) facing the conical guide tube (11). The horn-shaped oil spraying frame (32) is provided with an oil nozzle (322) for spraying oil onto the optical fiber in a single bundle state, and a wire-rubbing assembly (34) for pressing against the optical fiber in a single bundle state and rubbing it based on its vibration during travel. The number and orientation of the oil nozzle (322) and the wire-rubbing assembly (34) are the same as the number and orientation of the conical guide tube (11). The oil output end of the oil pump assembly (5) is connected to the oil nozzle (322).

2. The fiber optic cable bundling and sealing system for a central tube type optical cable according to claim 1, characterized in that, It also includes a compression assembly (2) for simultaneously pressing multiple groups of optical fibers in a single bundle state to reduce the included angle when the multiple groups of optical fibers in a single bundle state are bundled into a whole state. The compression assembly (2) is located between the take-up assembly (1) and the spray-knead take-up frame (3). The take-up assembly (1), the compression assembly (2), and the take-up block (31) of the spray-knead take-up integrated frame (3) constitute a three-level take-up module that gathers multiple loose optical fibers into a whole.

3. The fiber optic cable bundling and sealing system for a central tube type optical cable according to claim 2, characterized in that, The gathering block (31) is provided with a gathering through hole (314), which includes a constant diameter section and a horn-shaped reduced diameter section. The reduced diameter section is located on the side of the gathering block (31) near the horn-shaped fuel injector (32). A chamfered structure is provided between the equal diameter section and the reduced diameter section.

4. The fiber optic cable bundling and sealing system for a central tube type optical cable according to claim 2, characterized in that, The pressure assembly (2) includes a horizontally arranged mounting platform (21) and a side plate (22) vertically arranged on one side of the mounting platform (21), as well as two vertical pressure rollers (23) and two horizontal pressure rollers (24). The two vertical pressure rollers (23) are mounted on the mounting platform (21), and the two horizontal pressure rollers (24) are mounted on the side plate (22). Multiple groups of optical fibers in single bundle state pass through the channel formed by two vertical pressure rollers (23) and two horizontal pressure rollers (24); The mounting platform (21) is provided with a strip-shaped adjustment hole (211), and at least one vertical pressure roller shaft (23) is mounted on the mounting platform (21) through the strip-shaped adjustment hole (211); The pressure assembly (2) also includes a flipping shaft (26) and a bearing (25). The side plate (22) has a notch (221). The upper transverse pressure roller shaft (24) is installed at the notch (221) of the side plate (22) through the bearing (25) and the flipping shaft (26). The central axis of the flipping shaft (26) is perpendicular to the axial direction of the vertical pressure roller shaft (23) and the transverse pressure roller shaft (24). One end of the flipping shaft (26) is connected to the side plate (22), and the other end is connected to the bearing (25). The upper transverse pressure roller shaft (24) is installed on the bearing (25).

5. The fiber optic cable bundling and sealing system for a central tube type optical cable according to claim 1, characterized in that, The converging block (31) has an annular oil collecting groove (311) on the side opposite to the horn-shaped oil injector (32). It also includes a cap (33) installed on the annular oil collecting groove (311) and a connector (313) provided on the converging block (31). The oil output end of the pump assembly (5) is connected to the connector (313), and the connector (313) is connected to the annular oil collecting groove (311). The converging block (31) is also provided with multiple oil distribution channels (312). One end of the oil distribution channel (312) is connected to the annular oil collection groove (311), and the other end is connected to the oil nozzle (322) through the oil flow channel (321) inside the horn-shaped oil spray frame (32). The number of oil distribution channels (312) is the same as the number of oil nozzles (322).

6. The fiber optic cable bundling and sealing system for a central tube type optical cable according to claim 1, characterized in that, The horn-shaped fuel injector (32) includes inclined rods, the number and orientation of which are the same as the number and orientation of the conical guide tubes (11). The yarn-twisting assembly (34) includes a mounting sleeve (341) fitted on the inclined rod, a bracket (342) movably connected to the mounting sleeve (341), a top pressure spring (343) fitted on the bracket (342), and a yarn-twisting roller (344) rotatably connected to the bracket (342). One end of the top pressure spring (343) presses against the bracket (342), and the other end presses against the mounting sleeve (341).

7. The fiber optic cable bundling and sealing system for a central tube type optical cable according to claim 1, characterized in that, It also includes a traction component (4) for providing auxiliary traction force for the optical fiber to travel, the traction component (4) being located at the rear end of the spray-knead-and-collect frame (3) along the direction of optical fiber travel; The traction assembly (4) includes a gantry frame (41), a fixed plate (42), a fixed traction wheel (43), a movable pressure wheel (44), a sliding plate (45), a sliding frame (46), and a buffer spring (47). The fixed traction wheel (43) is rotatably connected to the fixed plate (42) and fixedly connected to the portal frame (41) through the fixed plate (42). The sliding plate (45) is slidably connected to the portal frame (41) in the vertical direction. The movable pressure wheel (44) is rotatably connected to the sliding plate (45). The sliding frame (46) is portal shaped and slidably connected to the sliding plate (45). The top of the sliding frame (46) is connected to the portal frame (41). The buffer spring (47) is fitted onto the sliding frame (46). One end of the buffer spring (47) presses against the sliding plate (45), and the other end presses against the top of the sliding frame (46).

8. The fiber optic cable bundling and sealing system for a central tube type optical cable according to claim 7, characterized in that, The traction assembly (4) also includes an adjusting screw (48) rotatably connected to the gantry frame (41), the adjusting screw (48) passing through the sliding frame (46) and being threadedly connected to it; Both the fixed traction wheel (43) and the movable pressure wheel (44) are fitted with elastic buffer layers.

9. The fiber optic cable bundling and sealing system for a central tube type optical cable according to claim 6, characterized in that, The yarn-kneading assembly (34) also includes a locking screw (345), which is threadedly connected to the mounting sleeve (341). The mounting sleeve (341) is fixed to the inclined bar of the horn-shaped oil spray frame (32) by the locking screw (345). The central axis of the bracket (342) is set perpendicular to the diagonal bar.

10. The fiber optic cable bundling and sealing system for a central tube type optical cable according to claim 1, characterized in that, The oil pump assembly (5) includes a drive motor (51) and a pump head (52), as well as an oil collection box (53) located directly below the spray-knead-collection frame (3). The bottom of the oil collection box (53) is connected to the oil input end of the pump head (52), and the oil output end of the pump head (52) is connected to the oil nozzle (322) of the spray-knead-collection frame (3).

Images