Manufacturing equipment for special optical cable

Abstract

The invention relates to special optical cable manufacturing equipment, and relates to the technical field of optical cable manufacturing, the special optical cable manufacturing equipment comprises a conveying mechanism, a tension controller, a covering protection mechanism and a cooling mechanism, the covering protection mechanism comprises a steel belt covering mechanism, a waterproof belt covering mechanism, a Kevlar wire covering mechanism and a cable skin covering mechanism, and the waterproof belt covering mechanism comprises a stabilizing frame. A waterproof tape reel is arranged in the stabilizing frame, a hot air channel and a combined baffle are arranged below the stabilizing frame, elastic pressing roller arrays are arranged on the two sides of the bottom of the stabilizing frame, the cooling mechanism comprises a bundling disc, a cooling groove, a cooling assembly and a connecting machine, and the cooling groove is divided into a high-temperature area, a medium-temperature area and a low-temperature area. The elastic compression roller array applies pressure to the waterproof tape and the optical fiber to form a molecular-level bonding surface, the cooling groove is internally provided with a waterproof baffle and a circulating cooling system, the flow of cooling liquid can be automatically adjusted according to the coating temperature of the waterproof tape, efficient and accurate manufacturing of the special optical cable is achieved, the waterproof performance of the optical cable is improved, and the service life of the optical cable is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of optical cable manufacturing, and in particular to a manufacturing device for a special optical cable. Background Art

[0002] Optical fiber cables, a vital component of modern communications networks, are widely used in a variety of environments. However, traditional optical cables are susceptible to damage in extreme environments (such as high and low temperatures, and humidity), leading to communication interruptions. As communications demand grows, higher demands are placed on the durability and damage resistance of optical cables. Despite continuous advancements in optical cable manufacturing technology in recent years, improvements in their suitability for extreme environments remain limited.

[0003] Prior art (CN114967013B) discloses a communications optical cable manufacturing device, relating to the information technology field. The device comprises an inner fiber core and a cladding layer, the cladding being coated with a jacket layer. The jacket layer is divided into an inner jacket layer and an outer jacket layer, with an elastic alloy wire interposed between the two layers. By configuring the jacket layer as a standard inner jacket layer and a higher-strength outer jacket layer, and by interposing the elastic alloy wire between the two layers, the device significantly improves mechanical strength and provides elasticity, minimizing cable bending and, more importantly, helping the cable return to a straight position as much as possible after stabilization. The jacketing device utilizes a rotating ring within a hot melt chamber where the hot melt contacts the coating layer. The rotating ring also acts as a barrier between the hot melt chamber and the feed chamber, preventing air from entering the chamber and ensuring a uniform, compact, and bubble-free jacket layer. However, research has revealed the following technical issues: the jacket material is susceptible to aging or cracking in extreme environments; its water-resistance is insufficient, resulting in moisture contamination of the internal optical fibers; and its overall strength is insufficient, making it difficult to meet high durability requirements.

[0004] In view of the above-mentioned related technologies, a solution is now proposed. Summary of the Invention

[0005] The purpose of this application is to provide a special optical cable manufacturing equipment to solve the technical problems in the prior art such as easy aging of sheath materials, insufficient waterproof performance, and insufficient overall strength.

[0006] The present application provides a manufacturing device for a special optical cable, which adopts the following technical solution: A special optical cable manufacturing equipment, including a conveying mechanism, a tension controller is provided on one side of the conveying mechanism, a covering protection mechanism is provided on one side of the tension controller, a cooling mechanism is provided on one side of the covering protection mechanism, the covering protection mechanism includes a steel belt covering mechanism, a waterproof belt covering mechanism, a Kevlar wire covering mechanism and a cable skin covering mechanism, the waterproof belt covering mechanism includes a stabilizing frame, a waterproof belt reel is provided inside the stabilizing frame, a hot air channel is provided below the waterproof belt reel, a combined baffle is provided below the hot air channel, elastic pressure roller arrays are provided on both sides of the bottom of the stabilizing frame, the cooling mechanism includes a clustering disk, a cooling trough, a cooling assembly and a connecting machine, a cooling trough is provided on one side of the clustering disk, two groups of cooling troughs are provided, the two groups of cooling troughs are evenly arranged along the vertical direction of the clustering disk, and the interior of each group of cooling troughs is divided into a high temperature zone, a medium temperature zone and a low temperature zone.

[0007] By adopting the above technical solution, the conveying mechanism stably conveys the optical fiber to the manufacturing equipment, and the tension controller ensures the constant tension of the optical fiber, providing a basis for subsequent covering protection; the covering protection mechanism includes a steel belt covering mechanism, a waterproof belt covering mechanism, a Kevlar covering mechanism and a cable skin covering mechanism, which successively wrap the thin steel belt around the outer layer of the optical fiber to provide mechanical strength support. The waterproof belt covering mechanism supports two sets of waterproof belt reels through a stabilizing frame. The waterproof belt is heated and softened in the hot air channel and guided by a combined baffle. Pressure is applied by an elastic pressure roller array, so that the waterproof belt and the thin steel belt are tightly fitted to form a molecular-level bonding surface, thereby optimizing waterproof sealing. The Kevlar wire covering mechanism surrounds the Kevlar wire to enhance the tensile strength, and the cable sheath covering mechanism covers the outermost cable sheath to achieve comprehensive protection; then the cooling mechanism guides the optical cable into two groups of vertically arranged cooling troughs through the cluster tray to save space. Each group of troughs is divided into high temperature zone, medium temperature zone and low temperature zone to achieve gradient cooling, ensuring that the optical cable is evenly cooled and shaped to prevent deformation; this design optimizes the bonding quality of the waterproof belt through hot air heating combined with elastic pressure, and improves the cooling efficiency through vertical double-layer gradient cooling, so that the optical cable can be used reliably in extreme environments, with higher strength and durability, and excellent waterproof performance, thereby significantly extending its service life.

[0008] Preferably, a detection mechanism is provided on one side of the cooling mechanism, a coding mechanism is provided on one side of the detection mechanism, and a traction mechanism is provided on one side of the coding mechanism.

[0009] By adopting the above solution, after the cooling mechanism completes the cooling and shaping of the optical cable, the detection mechanism is set on one side of the cooling mechanism to monitor the quality of the optical cable in real time, identify potential defects through non-destructive testing means, and ensure the high reliability of the optical cable in extreme environments; the coding mechanism is set on one side of the detection mechanism, and uses inkjet or laser technology to permanently mark the production information on the surface of the optical cable to facilitate product traceability and management; the traction mechanism is set on one side of the coding mechanism, and uses an adjustable speed winding mechanism to smoothly wind the finished optical cable into a disk, avoiding damage or deformation of the optical cable due to uneven winding tension, thereby maintaining the structural integrity of the optical cable; these mechanisms are connected in sequence, and cooperate with the covering protection mechanism and the cooling mechanism to form a closed-loop manufacturing process, eliminating the risk of failure through quality inspection, improving traceability through information marking, and ensuring the integrity of the finished product through winding protection, ultimately achieving an overall technical effect of higher strength, more durability and excellent waterproof performance of the optical cable, and significantly extending the service life.

[0010] Preferably, the steel belt covering mechanism includes a steel belt covering roller and a welding assembly. A welding assembly is provided on one side of the steel belt covering roller, and multiple groups of steel belts are welded by the welding assembly so that the steel belts cover the optical fiber.

[0011] By adopting the above scheme, the steel belt covering mechanism is a key component of the covering and protection mechanism, including a steel belt covering roller for evenly wrapping the thin steel belt on the outer layer of the optical fiber to provide basic mechanical support; the welding assembly is arranged on one side of the steel belt covering roller, and automatically detects when the steel belt length is insufficient and performs a welding operation, seamlessly connecting multiple groups of steel belts to ensure a continuous and uninterrupted covering process, avoiding the weakening of the optical cable structure due to the interruption of the steel belt; the design enhances the integrity and impact resistance of the outer layer of the optical cable through the strong seam formed by welding, directly improving the mechanical strength, durability and reliability of the optical cable in extreme environments; at the same time, the steel belt covering mechanism connects the constant tension state of the optical fiber maintained by the tension controller, providing a flat and stable basic surface for the subsequent waterproof tape covering mechanism, synergistically optimizing the waterproof seal and the overall structure, and ultimately achieving the technical effect of higher strength, more durability and excellent waterproof performance of the optical cable.

[0012] Preferably, two groups of waterproof belt reels are provided, and the two groups of waterproof belt reels are evenly arranged along the horizontal direction of the stabilizing frame. A through groove is provided between the waterproof belt reel and the hot air channel, so that the waterproof belt enters the hot air channel through the through groove for heating.

[0013] By adopting the above scheme, the covering waterproof tape mechanism serves as the core link of the covering protection mechanism. Two sets of waterproof tape reels are horizontally and symmetrically arranged through a stabilizing frame to realize the continuous supply of waterproof tape materials at dual stations, avoiding the production line stagnation caused by the interruption of a single reel; a through groove is arranged under the waterproof tape reel to enable the two waterproof tapes to be accurately introduced into the hot air channel for synchronous preheating and softening to ensure the ductility of the material; this design enhances production continuity through the redundant configuration of the dual reels, and combined with the directional guidance function of the through groove, the waterproof tape is heated evenly in the hot air channel and the travel trajectory is stable, providing sufficient thermoplastic conditions for the subsequent elastic pressure roller array to achieve molecular-level bonding, thereby significantly improving the sealing between the waterproof tape and the steel tape layer, directly enhancing the reliability of the waterproof barrier of the optical cable body in extreme environments, and coordinating the overall structure to achieve the technical effect of higher strength and longer service life.

[0014] Preferably, a hot air blower is provided on one side of the hot air channel, and a negative pressure blower is provided on the other side of the hot air channel. The hot air blower and the negative pressure blower form a high-temperature airflow in the hot air channel, and the high-temperature airflow moves in the horizontal direction of the hot air channel.

[0015] By adopting the above scheme, the hot air channel of the waterproof tape mechanism forms a high-temperature airflow that flows stably in the horizontal direction in the channel through the synergistic effect of the hot air blower and the negative pressure blower. The directional airflow design allows the waterproof tape to soften evenly and without dead angles after entering the channel under the guidance of the groove; combined with the vertical layout of the hot air channel located directly below the waterproof tape reel, it ensures that the waterproof tape enters the constant temperature heating zone by the shortest path to avoid heat loss; the high-temperature airflow directional control technology significantly improves the plastic stability of the waterproof tape material, creating the necessary conditions for the subsequent elastic pressure roller array to achieve a molecular-level bonding surface under a precise pressure of 0.5Mpa, thereby directly strengthening the dense bonding between the waterproof tape and the steel tape layer in the optical cable body, greatly improving the reliability of the waterproof barrier in extreme environments, and at the same time synergistically enhancing the overall structural strength of the optical cable to achieve the core technical effect of extending the service life.

[0016] Preferably, a traction roller is provided at the connection between the through groove and the combined baffle, and a temperature detector is provided on one side of the traction roller. The waterproof belt passes through the combined baffle through the traction roller and enters the elastic pressure roller array, so that the elastic pressure roller array applies a pressure of 0.5 MPa to the waterproof belt and the optical fiber to form a molecular-level bonding surface.

[0017] By adopting the above solution, a traction roller is set at the connection between the groove and the combined baffle of the waterproof tape covering mechanism to guide the waterproof tape to enter the pressing area precisely. The temperature detector on the side of the traction roller monitors the surface temperature of the waterproof tape in the optimal range of 140-160℃ in real time to ensure that the material is in an ideal thermoplastic state; the temperature signal synchronously triggers the dynamic pressure adjustment of the elastic pressure roller array, and the pressure roller wrapped with high-temperature resistant silicone exerts a constant surface pressure of 0.5Mpa under the action of the telescopic spring, so that a molecular penetration effect is generated between the softened waterproof tape and the steel tape layer, forming a gapless molecular-level bonding surface; this design breaks through the bonding quality bottleneck of traditional processes through temperature-pressure closed-loop control, directly eliminates the microgaps between layers and strengthens the interface adhesion, so that the waterproof tape and the steel tape layer form an integrated sealing barrier, which significantly improves the waterproof reliability of the optical cable in a high-pressure water vapor environment.

[0018] Preferably, the elastic pressure roller array includes an outer shell, a displacement rod, a pressure roller, a telescopic spring and high-temperature resistant silicone. Displacement rods are provided on both sides of the outer shell, a pressure roller is provided on the outer wall of the displacement rod, telescopic springs are provided on both sides of the pressure roller, and high-temperature resistant silicone is provided on the outer wall of the pressure roller.

[0019] By adopting the above solution, the elastic pressure roller array is linked to the pressure roller through the displacement rod in the outer shell, and the pressing distance is adaptively adjusted under the action of the telescopic spring to ensure that 0.5Mpa surface pressure is continuously applied between the waterproof tape and the steel tape layer; the high-temperature resistant silicone layer wrapped around the outer wall of the pressure roller maintains elastic deformation ability in a high temperature environment of 140-160℃, avoids material adhesion and evenly transmits pressure; this structural design breaks through the thermal deformation bottleneck of traditional metal pressure rollers through the synergistic effect of the heat resistance of the silicone material and the linear pressure characteristics of the spring, and accurately maintains the constant pressure conditions required for molecular-level bonding in the high-temperature pressing station, eliminating pressure fluctuations caused by thermal expansion and contraction, thereby ensuring a gap-free and tightly sealed package between the waterproof tape and the steel tape layer, directly enhancing the stability of the waterproof barrier and the structural integrity of the optical cable in extreme temperature environments, and achieving the core technical effects of higher mechanical strength and longer service life.

[0020] Preferably, a waterproof baffle is provided inside the cooling trough, and the waterproof baffle is provided in several groups, and a waterproof hole is provided at the center of each group of the waterproof baffles, so that the optical cable passes through the high temperature zone, medium temperature zone and low temperature zone in turn through the waterproof hole.

[0021] By adopting the above solution, several groups of waterproof baffles set in the cooling trough guide the optical cable travel path through the central waterproof hole. Each group of baffles precisely matches the outer diameter of the optical cable to form a dynamic seal, effectively blocking the flow of coolant in the high temperature zone, medium temperature zone and low temperature zone; this physical separation design maintains a strictly independent heat exchange environment in the three temperature zones within a limited space, ensuring that the optical cable undergoes a gradient cooling process in sequence: the high temperature zone initially solidifies the outer layer structure, the medium temperature zone evenly releases the internal stress of the material, and the low temperature zone completes the final crystallization and shaping; the precise isolation technology of this temperature zone breaks through the thermal stress concentration bottleneck of traditional single-trough cooling, so that the cable skin-Kevlar line-waterproof tape composite structure shrinks evenly, eliminating the risk of deformation and cracking between layers, thereby ensuring the structural integrity and waterproof barrier stability of the optical cable under extreme temperature impact, and directly achieving the core technical effect of higher mechanical strength and longer service life.

[0022] Preferably, cooling liquid pipes are provided on one side of the high temperature zone, the medium temperature zone and the low temperature zone, and a No. 1 water pump is provided on one side of each group of the cooling liquid pipes. Each group of the cooling liquid pipes is connected to two groups of the cooling tanks, so that the No. 1 water pump supplies the cooling liquid to the two groups of the cooling tanks at the same time. A flow pipe is provided on one side of the cooling liquid pipe, and a No. 2 water pump is provided on one side of the flow pipe. The other side of the flow pipe is connected to a reflux pool, and the reflux pool is connected to the high temperature zone, the medium temperature zone and the low temperature zone, so that the cooling liquid circulates in the cooling tank.

[0023] By adopting the above solution, several groups of waterproof baffles set in the cooling trough guide the optical cable travel path through the central waterproof hole. Each group of baffles precisely matches the outer diameter of the optical cable to form a dynamic seal, effectively blocking the flow of coolant in the high temperature zone, medium temperature zone and low temperature zone; this physical separation design maintains a strictly independent heat exchange environment in the three temperature zones within a limited space, ensuring that the optical cable undergoes a gradient cooling process in sequence: the high temperature zone initially solidifies the outer layer structure, the medium temperature zone evenly releases the internal stress of the material, and the low temperature zone completes the final crystallization and shaping; the precise isolation technology of this temperature zone breaks through the thermal stress concentration bottleneck of traditional single-trough cooling, so that the cable skin-Kevlar line-waterproof tape composite structure shrinks evenly, eliminating the risk of deformation and cracking between layers, thereby ensuring the structural integrity and waterproof barrier stability of the optical cable under extreme temperature impact, and directly achieving the core technical effect of higher mechanical strength and longer service life.

[0024] Preferably, a diverter valve is provided on the outer wall of the coolant pipe, and a receiving component is connected to one side of the diverter valve, which communicates with the waterproof tape covering mechanism through the receiving component to detect the attachment temperature of the waterproof tape. When the detected temperature is greater than 160°C, the diverter valve is opened at a 60° inclination angle, and when the detected temperature is less than 140°C, the diverter valve is opened at a 30° inclination angle.

[0025] By adopting the above solution, the flow valve obtains the waterproof tape covering temperature detected by the waterproof tape covering mechanism in real time through the receiving component. When the temperature is greater than 160℃, it automatically opens at a 60° angle to increase the coolant flow rate, accelerates the heat exchange rate in the high temperature zone, and avoids thermal degradation of the waterproof tape polymer material; when the temperature is less than 140℃, it opens at a 30° angle to reduce the flow rate, reduces the cooling intensity in the medium temperature zone, and prevents microcracks from forming at the interface between the Kevlar line and the waterproof tape due to uneven shrinkage due to temperature difference; this temperature-responsive flow control breaks through the passive adjustment limitations of the traditional cooling process, and through cross-mechanism coordination between the preceding process and the subsequent cooling, it dynamically maintains the material phase change equilibrium under extreme temperature conditions, eliminates interlayer thermal stress damage, and ensures that the peel strength of the waterproof tape of the optical cable is stable at more than 15N / mm in a temperature change environment of -40℃~150℃.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By installing a high-frequency hot air ring in the waterproof tape laminating mechanism, the temperature in the hot air channel is precisely controlled at 300°C ± 5°C, causing the waterproof tape to soften at high temperature and forming a microporous interlocking structure with the steel tape. Electron microscopy shows that the bonding depth reaches 20μm, breaking through the interface gap limitation of traditional physical lamination and solving the problem of micro gaps between the waterproof tape and steel tape layers caused by traditional lamination methods. 2. The traditional rigid rollers are replaced by an array of elastic pressure rollers, the surface of which is covered with high-temperature resistant silicone. This applies a uniform pressure of 0.5 MPa to the waterproof tape and optical fiber, forming a molecular-level bonding surface. By dividing the cooling tank into three temperature zones: high, medium, and low, gradient cooling is achieved, eliminating thermal stress concentration and avoiding the problem of uniform water temperature cooling in traditional double-layer cooling tanks, which causes internal stress in the cable sheath and wrinkles in the waterproof tape due to sudden cooling. 3. The cooling rate is dynamically controlled by the diversion valve to match the phase change point of the material, so that the optical cable will not cause interface separation due to thermal expansion and contraction at extreme temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional structural diagram of a manufacturing device for a special optical cable of the present application; Figure 2 This is a side perspective structural diagram of a special optical cable manufacturing device of the present application; Figure 3 This is a three-dimensional structural diagram of the conveying mechanism and tension controller of a special optical cable manufacturing device of the present application; Figure 4 This is a three-dimensional structural diagram of a covering and protecting mechanism of a special optical cable manufacturing device of the present application; Figure 5 This is a three-dimensional structural diagram of the cooling mechanism and detection mechanism of a special optical cable manufacturing device of the present application; Figure 6 This is a partial three-dimensional structural diagram of a cooling mechanism of a special optical cable manufacturing device of the present application; Figure 7 This is a side structural diagram of a cooling mechanism of a special optical cable manufacturing device of the present application; Figure 8 This is a side perspective view of a waterproof tape covering mechanism of a special optical cable manufacturing device of the present application.

[0028] Explanation of reference numerals: 1. Conveying mechanism; 2. Tension controller; 3. Covering and protecting mechanism; 4. Cooling mechanism; 41. Clustering disc; 42. Cooling trough; 421. Waterproof baffle; 422. Waterproof hole; 43. Cooling assembly; 44. Connecting machine; 5. Detection mechanism; 6. Inkjet printing mechanism; 7. Traction mechanism; 8. Steel belt covering mechanism; 9. Waterproof belt covering mechanism; 91. Stabilizing frame; 92. Waterproof belt reel; 93. Hot air channel; 931. Hot air blower; 932. Negative pressure blower; 94. Combined baffle ;95. Elastic pressure roller array; 951. Shell; 952. Displacement rod; 953. Pressure roller; 954. Telescopic spring; 955. High-temperature resistant silicone; 10. Kevlar wire covering mechanism; 11. Cable skin covering mechanism; 12. Passing groove; 13. Pulling roller; 14. Temperature detector; 15. High temperature zone; 16. Medium temperature zone; 17. Low temperature zone; 18. Cooling liquid pipe; 19. Water pump No. 1; 20. Water pump No. 2; 21. Reflux tank; 22. Diversion valve; 23. Receiving component; 24. Flow pipe. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 -Attached Figure 8 , further details of this application are given.

[0030] The embodiment of the present application discloses a manufacturing device for a special optical cable.

[0031] A manufacturing device for special optical cables includes a conveying mechanism 1, a tension controller 2 is provided on one side of the conveying mechanism 1, a covering protection mechanism 3 is provided on one side of the tension controller 2, and a cooling mechanism 4 is provided on one side of the covering protection mechanism 3.

[0032] The covering and protection mechanism 3 includes a steel belt covering mechanism 8, a waterproof belt covering mechanism 9, a Kevlar covering mechanism 10, and a cable covering mechanism 11. The steel belt covering mechanism 8 includes a steel belt covering roller and a welding assembly. The welding assembly is provided on one side of the steel belt covering roller, and multiple sets of steel belts are welded together by the welding assembly to cover the optical fiber with the steel belts.

[0033] The waterproof tape covering mechanism 9 includes a stabilizing frame 91, which is internally provided with two sets of waterproof tape reels 92, evenly arranged horizontally along the stabilizing frame 91. A hot air duct 93 is provided below the waterproof tape reels 92, and a combined baffle 94 is provided below the hot air duct 93. Elastic pressure roller arrays 95 are provided on both sides of the bottom of the stabilizing frame 91. A passage slot 12 is provided between the waterproof tape reels 92 and the hot air duct 93, allowing the waterproof tape to enter the hot air duct 93 through the slot 12 for heating.

[0034] A hot air blower 931 is provided on one side of the hot air channel 93, and a negative pressure blower 932 is provided on the other side of the hot air channel 93. The hot air blower 931 and the negative pressure blower 932 form a high-temperature airflow in the hot air channel 93, and the high-temperature airflow moves horizontally along the hot air channel 93. A pulling roller 13 is provided at the connection between the slot 12 and the combined baffle 94. A temperature detector 14 is installed on one side of the pulling roller 13. The waterproof tape passes through the combined baffle 94 via the pulling roller 13 and enters the elastic pressure roller array 95. The elastic pressure roller array 95 applies a pressure of 0.5 MPa to the waterproof tape and the optical fiber, forming a molecular-level bonding surface.

[0035] The elastic pressure roller array 95 includes an outer shell 951, a displacement rod 952, a pressure roller 953, a telescopic spring 954 and a high-temperature resistant silicone 955. Displacement rods 952 are provided on both sides of the outer shell 951, and a pressure roller 953 is provided on the outer wall of the displacement rod 952. Telescopic springs 954 are provided on both sides of the pressure roller 953, and high-temperature resistant silicone 955 is provided on the outer wall of the pressure roller 953.

[0036] The cooling mechanism 4 includes a clustering tray 41, cooling troughs 42, a cooling assembly 43, and a connector 44. Two groups of cooling troughs 42 are arranged evenly along the vertical direction of the clustering tray 41, and the interior of each group of cooling troughs 42 is divided into a high-temperature zone 15, a medium-temperature zone 16, and a low-temperature zone 17. Waterproof baffles 421 are provided inside the cooling troughs 42. Several groups of waterproof baffles 421 are provided, and a waterproof hole 422 is provided at the center of each group of waterproof baffles 421, allowing the optical cable to pass through the waterproof hole 422 in sequence through the high-temperature zone 15, the medium-temperature zone 16, and the low-temperature zone 17.

[0037] A cooling liquid pipe 18 is provided on one side of the high temperature zone 15, the medium temperature zone 16 and the low temperature zone 17. A water pump 19 is provided on one side of each group of cooling liquid pipes 18. Each group of cooling liquid pipes 18 is connected to two groups of cooling tanks 42, so that the water pump 19 supplies cooling liquid to the two groups of cooling tanks 42 at the same time. A flow pipe 24 is provided on one side of the cooling liquid pipe 18, a No. 2 water pump 20 is provided on one side of the flow pipe 24, and a reflow pool 21 is connected to the other side of the flow pipe 24. The reflow pool 21 is connected to the high temperature zone 15, the medium temperature zone 16 and the low temperature zone 17, so that the coolant circulates in the cooling tank 42.

[0038] A diverter valve 22 is provided on the outer wall of the coolant pipe 18. A receiving component 23 is connected to one side of the diverter valve 22. The receiving component 23 communicates with the waterproof tape covering mechanism 9 to detect the attachment temperature of the waterproof tape. When the detected temperature is greater than 160°C, the diverter valve 22 is opened at a 60° angle. When the detected temperature is less than 140°C, the diverter valve 22 is opened at a 30° angle.

[0039] A detection mechanism 5 is provided on one side of the cooling mechanism 4 , a coding mechanism 6 is provided on one side of the detection mechanism 5 , and a traction mechanism 7 is provided on one side of the coding mechanism 6 .

[0040] Specifically, the detection mechanism 5 uses an X-ray non-destructive testing system to perform spiral scanning inspection on the optical cable after cooling and shaping, and identifies bubbles in the steel belt welds and delamination defects in the waterproof tape through digital imaging technology; the coding mechanism 6 is equipped with a fiber laser marking machine to engrave permanent marks on the cable sheath surface, and its pulse laser parameters are automatically adjusted according to the characteristics of the cable sheath material; the traction mechanism 7 is coordinated with the servo motor through the magnetic powder brake to maintain a constant winding tension based on closed-loop feedback.

[0041] As a preferred embodiment, the steel belt covering mechanism 8 includes a steel belt covering roller and a welding assembly. A welding assembly is provided on one side of the steel belt covering roller, and multiple groups of steel belts are welded by the welding assembly so that the steel belts cover the optical fiber.

[0042] Specifically, the steel belt wrapping rollers utilize a three-stage progressive wrapping structure. The active roller is driven by a YASKAWASGM7G servo motor, which synchronously drives two sets of driven rollers via a gear train, tightly wrapping the steel belt around the outer layer of the optical fiber in a spiral trajectory. The welding assembly is equipped with a KEYENCE LK-G5000 laser displacement sensor to monitor the remaining steel belt length in real time. When the detected remaining length is less than 20 cm, a argon arc welder (Fronius TPS 400i) automatically clamps the ends of the steel belt and performs a butt weld. A post-weld grinding unit (with a P800 grit abrasive belt) simultaneously trims the weld to a surface roughness Ra ≤ 1.6 μm. This implementation, through a servo-synchronized wrapping and integrated welding and trimming design, while maintaining constant optical fiber tension with a tension controller 2, overcomes the bottleneck of traditional intermittent wrapping processes. Three stages of rollers apply progressive pressure to eliminate steel belt wrinkles, while argon arc welding ensures weld strength exceeding 98% of the parent material. This provides continuous mechanical protection for the steel belt layer and provides a smooth base for subsequent waterproof tape application.

[0043] As a preferred embodiment, two groups of waterproof belt reels 92 are provided, and the two groups of waterproof belt reels 92 are evenly arranged in the horizontal direction of the stabilizing frame 91. A through groove 12 is provided between the waterproof belt reels 92 and the hot air channel 93, so that the waterproof belt enters the hot air channel 93 through the through groove 12 for heating.

[0044] Specifically, two sets of waterproof tape reels 92 are horizontally and symmetrically installed on the rotating shaft of the stabilizing frame 91, and each is driven by an independent servo motor of model: Panasonic MHMF to synchronously unwind the tape, ensuring that the supply speed deviation of the double-reel waterproof tape is ≤0.5%; the groove 12 is a titanium alloy guide groove with adjustable width, and the adjustment range is 8 to 12 mm. Its V-shaped entrance guides the two belts to merge into the hot air channel 93, and the inner surface of the groove is polished to Ra0.4μm to reduce friction resistance.

[0045] As a preferred embodiment, a hot air blower 931 is provided on one side of the hot air channel 93, and a negative pressure blower 932 is provided on the other side of the hot air channel 93. The hot air blower 931 and the negative pressure blower 932 form a high-temperature airflow in the hot air channel 93, and the high-temperature airflow moves in the horizontal direction of the hot air channel 93.

[0046] Specifically, the hot air blower 931 adopts a ceramic heating tube (power 15kW) with a circular array layout, and a guide grid is set at the air outlet to allow the hot air to be sprayed horizontally into the hot air channel 93 at a flow rate of 8m / s; the negative pressure blower 932 forms a -500Pa negative pressure zone at the end of the channel, and draws air through multi-stage turbine blades (speed 2800rpm); the two work together to establish unidirectional laminar flow in the channel, and the air flow temperature fluctuation is ≤±2℃.

[0047] As a preferred embodiment, a traction roller 13 is provided at the connection between the groove 12 and the combined baffle 94, and a temperature detector 14 is provided on one side of the traction roller 13. The waterproof belt passes through the combined baffle 94 through the traction roller 13 and enters the elastic pressure roller array 95, so that the elastic pressure roller array 95 applies a pressure of 0.5 MPa to the waterproof belt and the optical fiber to form a molecular-level bonding surface.

[0048] Specifically, the surface of the traction roller 13 is hard chrome-plated and has anti-slip grooves. The servo motor model: Siemens 1FL6 drives the traction waterproof belt to pass through the combined baffle 94 at a uniform speed of 0.5m / s; the infrared temperature detector 14 model: Fluke 62MAX+ monitors the surface temperature of the belt in real time with a sampling frequency of 100Hz. When the detection value is in the ideal viscous flow range of 140-160℃, the telescopic spring 954 of the elastic pressure roller array 95 is triggered to compress to a preset stroke, so that the pressure roller 953 coated with high-temperature resistant silicone 955 applies a vertical pressure of 0.5MPa and maintains a residence time of 3 seconds.

[0049] As a preferred embodiment, the elastic pressure roller array 95 includes an outer shell 951, a displacement rod 952, a pressure roller 953, a telescopic spring 954 and a high-temperature resistant silicone 955. Displacement rods 952 are provided on both sides of the outer shell 951, and a pressure roller 953 is provided on the outer wall of the displacement rod 952. Telescopic springs 954 are provided on both sides of the pressure roller 953, and a high-temperature resistant silicone 955 is provided on the outer wall of the pressure roller 953.

[0050] Specifically, the elastic pressure roller array 95 is fixed to both sides of the bottom of the stabilizing frame 91 through the outer shell 951, and its displacement rod 952 is connected to the pressure roller 953. The telescopic spring 954 provides elastic pressure to enable the pressure roller to move up and down to adapt to the thickness changes of the optical fiber and the waterproof tape. The high-temperature resistant silicone 955 covers the surface of the pressure roller to withstand the high temperature environment after heating by the hot air channel 93 to prevent material adhesion; when the waterproof tape passes through the combined baffle 94 and enters the array after being heated by hot air, the pressure roller 953 applies a uniform pressure of 0.5Mpa under the action of the spring, prompting the waterproof tape to fit tightly with the optical fiber to form a molecular-level bonding surface, thereby improving the waterproof performance and durability of the optical cable.

[0051] As a preferred embodiment, a waterproof baffle 421 is provided inside the cooling tank 42, and several groups of waterproof baffles 421 are provided. A waterproof hole 422 is provided at the center of each group of waterproof baffles 421, so that the optical cable passes through the waterproof hole 422 in turn through the high temperature zone 15, the medium temperature zone 16 and the low temperature zone 17.

[0052] Specifically, multiple layers of waterproof baffles 421 are arranged inside the cooling trough 42, and a waterproof hole 422 is provided in the center of each baffle. The optical cable passes through the multiple layers of waterproof holes 422 in sequence to form a physically isolated channel. The design uses the waterproof baffles 421 to separate the cooling trough 42 into independent temperature zones, so that the optical cable passes through the high temperature zone 15, the medium temperature zone 16 and the low temperature zone 17 in sequence to achieve gradient cooling and shaping. At the same time, the waterproof holes 422 are precisely matched with the outer diameter of the optical cable to form a dynamic seal, which effectively isolates the coolant from penetrating the internal structure. Each temperature zone is independently temperature-controlled by the cooling liquid pipe 18. The high temperature zone 15 maintains the activity of material molecules to promote stress release, and the medium and low temperature zones gradually solidify the cable skin structure.

[0053] As a preferred embodiment, a cooling liquid pipe 18 is provided on one side of the high temperature zone 15, the medium temperature zone 16 and the low temperature zone 17, and a No. 1 water pump 19 is provided on one side of each group of cooling liquid pipes 18. Each group of cooling liquid pipes 18 is connected to two groups of cooling tanks 42, so that the No. 1 water pump 19 supplies cooling liquid to the two groups of cooling tanks 42 at the same time. A flow pipe 24 is provided on one side of the cooling liquid pipe 18, a No. 2 water pump 20 is provided on one side of the flow pipe 24, and a reflow pool 21 is connected to the other side of the flow pipe 24. The reflow pool 21 is connected to the high temperature zone 15, the medium temperature zone 16 and the low temperature zone 17, so that the coolant circulates in the cooling tank 42.

[0054] Specifically, the coolant pipe 18 simultaneously pumps the coolant into the high-temperature zone 15, medium-temperature zone 16 and low-temperature zone 17 of the upper and lower cooling tanks 42 through the No. 1 water pump 19, realizing parallel liquid supply of a single set of pipelines and two tanks to simplify the pipeline layout; the flow pipe 24, driven by the No. 2 water pump 20, pumps the coolant in the tank to the reflux tank 21 for temperature adjustment, forming a closed-loop circulation system; this design utilizes the pressure difference principle, and the No. 1 water pump 19 establishes positive pressure to stably inject coolant into the cooling tank 42, and the No. 2 water pump 20 forms a negative pressure suction force at the outlet of the flow pipe 24, prompting the high-temperature coolant to quickly return to the reflux tank 21 to dissipate heat, and the dual pumps work together to maintain a constant heat exchange efficiency in each temperature zone; the reflux tank 21 is directly connected to each temperature zone, so that the coolant re-participates in the circulation after heat dissipation, ensuring that the upper and lower cooling tanks 42 achieve gradient cooling synchronously.

[0055] As a preferred embodiment, a diverter valve 22 is provided on the outer wall of the coolant pipe 18, and a receiving component 23 is connected to one side of the diverter valve 22. The receiving component 23 communicates with the waterproof tape covering mechanism 9 to detect the attachment temperature of the waterproof tape. When the detected temperature is greater than 160°C, the diverter valve 22 is opened at a 60° angle. When the detected temperature is less than 140°C, the diverter valve 22 is opened at a 30° angle.

[0056] Specifically, the diverter valve 22 is installed on the outer wall of the coolant pipe 18, and its receiving component 23 communicates in real time with the temperature detector 14 of the waterproof tape covering mechanism 9 through a signal line. When it is detected that the waterproof tape covering temperature is greater than 160°C, the diverter valve 22 automatically switches to a 60° inclination angle, increasing the coolant flow rate to enhance the heat dissipation intensity of the high-temperature zone 15; when the temperature is less than 140°C, it switches to a 30° inclination angle to reduce the flow rate to avoid overcooling.

[0057] The implementation principle of the embodiment of the present application is: first, the optical fiber enters the tension controller 2 through the conveying mechanism 1, and the tension controller 2 controls the tension of the optical fiber to ensure that the optical fiber maintains appropriate tension during subsequent processing to prevent the optical fiber from breaking or loosening.

[0058] Then, the optical fiber enters the covering and protection mechanism 3, which first covers the optical fiber with a steel tape through the steel tape covering mechanism 8. The steel tape covering roller guides the steel tape to the surface of the optical fiber, and the welding assembly welds multiple groups of steel tapes together to form a protective layer for the optical fiber.

[0059] Next, the optical fiber enters the waterproof tape coating mechanism 9. The waterproof tape is released from the waterproof tape reel 92 and enters the hot air duct 93 through the passage slot 12. In the hot air duct 93, the hot air blower 931 and the negative pressure blower 932 work together to generate a high-temperature airflow flowing horizontally along the hot air duct 93, heating the waterproof tape. The heated waterproof tape passes through the combined baffle 94 by the pulling roller 13 and enters the elastic pressure roller array 95. The temperature detector 14 monitors the temperature of the waterproof tape in real time to ensure that the waterproof tape is bonded to the optical fiber at the appropriate temperature.

[0060] In the elastic pressure roller array 95, the displacement rod 952 drives the pressure roller 953 to apply a pressure of 0.5 MPa to the waterproof tape and the optical fiber under the action of the telescopic spring 954. The high-temperature resistant silicone 955 on the outer wall of the pressure roller 953 ensures that the pressure is evenly distributed, so that the waterproof tape and the optical fiber form a molecular-level bonding surface, thereby improving the waterproof performance.

[0061] Subsequently, the optical fiber passes through the Kevlar covering mechanism 10 and the cable covering mechanism 11 in sequence, so as to further enhance the strength and protection performance of the optical cable.

[0062] After the protective covering is completed, the optical cable enters the cooling mechanism 4. The optical cable is first arranged by the cluster tray 41 and then enters the cooling tank 42. The optical cable passes through the waterproof holes 422 on the waterproof baffle 421 and passes through the high temperature zone 15, the medium temperature zone 16, and the low temperature zone 17 in sequence for gradient cooling.

[0063] Coolant is supplied to two sets of cooling tanks 42 via coolant pipe 18 and water pump No. 1 19. The diverter valve 22 on coolant pipe 18 adjusts its opening based on the temperature of the waterproof tape attached, as received by the receiving assembly 23. When the temperature is above 160°C, the diverter valve 22 opens 60°, increasing the coolant flow rate. When the temperature is below 140°C, the diverter valve 22 opens 30°, reducing the coolant flow rate. The coolant forms a circulation system through flow pipe 24, water pump No. 2 20, and recirculation tank 21, improving cooling efficiency.

[0064] After cooling, the optical cable passes through the inspection mechanism 5 for quality inspection to ensure that the performance indicators of the optical cable meet the requirements. The qualified optical cable enters the coding mechanism 6 for marking and is finally pulled by the pulling mechanism 7 to the next process or the winding device.

[0065] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A manufacturing device for a special optical cable, comprising a conveying mechanism (1), characterized in that: A tension controller (2) is provided on one side of the conveying mechanism (1), a covering protection mechanism (3) is provided on one side of the tension controller (2), a cooling mechanism (4) is provided on one side of the covering protection mechanism (3), the covering protection mechanism (3) comprises a steel belt covering mechanism (8), a waterproof belt covering mechanism (9), a Kevlar wire covering mechanism (10) and a cable skin covering mechanism (11), the waterproof belt covering mechanism (9) comprises a stabilizing frame (91), a waterproof belt reel (92) is provided inside the stabilizing frame (91), a hot air channel (93) is provided below the waterproof belt reel (92), and the hot air channel (93) is provided below the waterproof belt reel (92). A combined baffle (94) is provided below the channel (93), and elastic pressure roller arrays (95) are provided on both sides of the bottom of the stabilizing frame (91). The cooling mechanism (4) includes a clustering disk (41), a cooling trough (42), a cooling assembly (43) and a connecting machine (44). A cooling trough (42) is provided on one side of the clustering disk (41), and two groups of cooling troughs (42) are provided. The two groups of cooling troughs (42) are evenly arranged along the vertical direction of the clustering disk (41), and the interior of each group of cooling troughs (42) is divided into a high temperature zone (15), a medium temperature zone (16) and a low temperature zone (17).

2. The manufacturing equipment for special optical cables according to claim 1, characterized in that: A detection mechanism (5) is provided on one side of the cooling mechanism (4), a coding mechanism (6) is provided on one side of the detection mechanism (5), and a traction mechanism (7) is provided on one side of the coding mechanism (6).

3. The manufacturing equipment for special optical cables according to claim 1, characterized in that: The steel belt covering mechanism (8) comprises a steel belt covering roller and a welding assembly. A welding assembly is provided on one side of the steel belt covering roller, and multiple groups of steel belts are welded by the welding assembly so that the steel belts cover the optical fiber.

4. The manufacturing equipment for special optical cables according to claim 1, characterized in that: Two groups of the waterproof belt reels (92) are provided, and the two groups of the waterproof belt reels (92) are evenly arranged in the horizontal direction of the stabilizing frame (91). A through slot (12) is provided between the waterproof belt reels (92) and the hot air channel (93), so that the waterproof belt passes through the through slot (12) into the hot air channel (93) for heating.

5. The manufacturing equipment for special optical cables according to claim 1, characterized in that: A hot air blower (931) is provided on one side of the hot air channel (93), and a negative pressure blower (932) is provided on the other side of the hot air channel (93). The hot air blower (931) and the negative pressure blower (932) form a high-temperature airflow in the hot air channel (93), and the high-temperature airflow moves in the horizontal direction of the hot air channel (93).

6. The manufacturing equipment for special optical cables according to claim 4, characterized in that: A traction roller (13) is provided at the connection between the through groove (12) and the combined baffle (94), and a temperature detector (14) is provided on one side of the traction roller (13). The waterproof belt passes through the combined baffle (94) through the traction roller (13) and enters the elastic pressure roller array (95), so that the elastic pressure roller array (95) applies a pressure of 0.5 MPa to the waterproof belt and the optical fiber to form a molecular-level bonding surface.

7. The manufacturing equipment for special optical cables according to claim 1, characterized in that: The elastic pressure roller array (95) comprises a shell (951), a displacement rod (952), a pressure roller (953), a telescopic spring (954), and high-temperature resistant silicone (955). Displacement rods (952) are provided on both sides of the shell (951). Pressure rollers (953) are provided on the outer walls of the displacement rods (952). Telescopic springs (954) are provided on both sides of the pressure roller (953). High-temperature resistant silicone (955) is provided on the outer walls of the pressure roller (953).

8. The manufacturing equipment for special optical cables according to claim 1, characterized in that: A waterproof baffle (421) is provided inside the cooling trough (42), and the waterproof baffle (421) is provided in a plurality of groups, and a waterproof hole (422) is provided at the center of each group of the waterproof baffles (421), so that the optical cable passes through the waterproof hole (422) and sequentially passes through the high temperature zone (15), the medium temperature zone (16) and the low temperature zone (17).

9. The manufacturing equipment for special optical cables according to claim 1, characterized in that: A cooling liquid pipe (18) is provided on one side of the high temperature zone (15), the medium temperature zone (16) and the low temperature zone (17), and a water pump (19) is provided on one side of each group of the cooling liquid pipes (18). Each group of the cooling liquid pipes (18) is connected to two groups of the cooling tanks (42), so that the water pump (19) supplies the cooling liquid to the two groups of the cooling tanks (42) at the same time. A flow pipe (24) is provided on one side of the cooling liquid pipe (18), and a water pump (20) is provided on one side of the flow pipe (24). The other side of the flow pipe (24) is connected to a reflow pool (21), and the reflow pool (21) is connected to the high temperature zone (15), the medium temperature zone (16) and the low temperature zone (17), so that the cooling liquid circulates in the cooling tank (42).

10. The manufacturing equipment for special optical cables according to claim 9, characterized in that: A diverter valve (22) is provided on the outer wall of the coolant pipe (18), and a receiving component (23) is connected to one side of the diverter valve (22). The receiving component (23) communicates with the waterproof tape covering mechanism (9) to detect the attachment temperature of the waterproof tape. When the detected temperature is greater than 160°C, the diverter valve (22) is opened at an angle of 60°. When the detected temperature is less than 140°C, the diverter valve (22) is opened at an angle of 30°.

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