A kind of tethered unmanned aerial vehicle photoelectric composite cable special extrusion processing device and composite cable

Abstract

A dedicated extrusion processing device and composite cable for tethered drones. This invention belongs to the field of tethered drone optoelectronic composite cables, specifically relating to a tethered drone optoelectronic composite cable, including a cable core, a filling layer on the outside of the cable core, a shielding layer on the outside of the filling layer, and a tensile protective layer on the outside of the shielding layer. This invention utilizes quantitative feeding and anti-blocking feeding structures, and an intermittent transmission structure to drive the intermittent rotation of the separator plate, achieving equal and timed raw material delivery. It stably controls the extrusion feed rate and rhythm, ensuring uniform feeding during the extrusion process. A combined vibration structure of a vibrating motor and auxiliary vibration spring continuously shakes and clears the raw material at the outlet, improving material adhesion and accumulation problems and preventing outlet blockage. The entire feeding system requires no frequent manual intervention, can continuously and stably complete feeding operations, reduce equipment downtime, and improve the continuity and processing efficiency of composite cable extrusion.

Description

Technical Field

[0001] This invention relates to the field of tethered drone optoelectronic composite cable technology, specifically to a special extrusion processing device and composite cable for tethered drone optoelectronic composite cables. Background Technology

[0002] The tethered drone fiber optic composite cable is a core component of the tethered drone system, integrating power transmission and photoelectric signal transmission functions. Its multi-layered protective structure adapts to the complex outdoor operating environment of drones, possessing tensile strength, abrasion resistance, and electromagnetic interference resistance, ensuring stable power supply and signal during long-term hovering operations. Extrusion is the core process in the production of the fiber optic composite cable. It involves using extrusion equipment to coat the cable core with molten plastic raw material, forming the protective structure. The processing precision and stability directly determine the composite cable's protective performance, structural regularity, and reliability.

[0003] Currently, conventional composite cable extrusion processing equipment on the market has a simple structure and single function, making it difficult to adapt to the refined and stable production and processing requirements of composite cables for tethered drones, and its processing adaptability has obvious shortcomings.

[0004] At present, the feeding and unloading processes of traditional extrusion equipment have become the main factors restricting the processing quality and production efficiency of composite cables. Traditional feeding structures are mostly open free-fall modes, which cannot achieve quantitative and uniform feeding. The amount of raw material fed is inconsistent, which can easily lead to uneven extrusion layer thickness and affect the quality of cable molding. At the same time, plastic raw materials are prone to accumulate and stick together at the discharge port, causing frequent material blockage problems, requiring manual shutdown for cleaning and interrupting the production continuity. In the unloading guidance stage, traditional equipment mostly adopts a fixed guide structure, which cannot flexibly adapt to tethered drone optoelectronic composite cables of different diameters and specifications. The adaptability range is limited, and the cable is prone to deviation and shaking during the cable transportation process, further reducing the product processing accuracy and making it difficult to meet the needs of mass standardized production. Summary of the Invention

[0005] The purpose of this invention is to provide a dedicated extrusion processing device and composite cable for tethered drone optoelectronic composite cables. This invention solves the problems of traditional feeding structures, which are mostly open-type free-fall feeding modes, failing to achieve quantitative and uniform material supply. Fluctuations in raw material feeding can easily lead to uneven extrusion layer thickness, affecting cable molding quality. Furthermore, plastic raw materials tend to accumulate and clump at the discharge port, frequently causing material blockages that require manual shutdown for cleaning, disrupting production continuity. In the material guiding stage, traditional equipment often uses a fixed guiding structure, which cannot flexibly adapt to tethered drone optoelectronic composite cables of different diameters, limiting its compatibility. Moreover, cable transport is prone to deviation and shaking, further reducing product processing accuracy and failing to meet the needs of mass standardized production.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a special extrusion processing device and composite cable for tethered UAVs, comprising a cable core, a filling layer disposed on the outer side of the cable core, a shielding layer disposed on the outer side of the filling layer, a tensile protective layer disposed on the outer side of the shielding layer, and an anti-abrasion and anti-scratch protective layer disposed on the outer side of the tensile protective layer.

[0007] A dedicated extrusion processing device for tethered drone optical-electric composite cables is disclosed. This device, comprising a workbench, has an extrusion device fixedly connected to the left side of the top of the workbench, a flexible tube connected to the left side of the top of the extrusion device, and a feeding hopper connected to the top of the flexible tube. A frame is fixedly connected to the right side of the top of the workbench. The feeding hopper contains a metering mechanism and an anti-blocking mechanism at its bottom. The frame contains a material guiding mechanism. The feeding hopper enables automated feeding of extruded raw materials, anti-blocking discharge, and stable guidance of the formed cable. This optimizes the overall process flow of the composite cable extrusion. The entire device has a well-organized structure and clearly defined functional modules, adapting to the dedicated extrusion processing requirements of tethered drone optical-electric composite cables. It reduces manual intervention, improves the continuity of processing steps, and ensures stable and orderly processing.

[0008] Preferably, the quantitative mechanism includes a rotating shaft movably connected inside the feeding hopper. The front and rear sides of the rotating shaft extend to the front and rear sides of the feeding hopper, respectively. Four partition plates are fixedly connected to the surface of the rotating shaft, and the four partition plates are evenly distributed at equal intervals. Through the setting of the partition plates, the raw material can be quantitatively divided and conveyed, so that the volume of raw material falling into the hose each time remains uniform and stable. This structure is simple and compact, and quantitative feeding is achieved by mechanical separation. It does not require complex sensing equipment, can effectively control the amount of extrusion raw material fed, avoid the situation of fluctuating raw material supply, ensure uniform feeding rhythm in extrusion processing, and adapt to the uniform processing requirements of composite cable extrusion.

[0009] Preferably, an intermittent wheel is fixedly connected to the front side of the rotating shaft, and a control wheel is engaged with the left side of the intermittent wheel. The control wheel is movably connected to the left side of the front side of the feeding hopper, and a drive motor is fixedly connected to the left side of the feeding hopper. A drive gear is fixedly connected to the output end of the drive motor and the front side of the control wheel. A toothed belt is fitted on the surface of the drive gear. Through the setting of the intermittent wheel, the control wheel is driven to rotate through the transmission structure, which in turn drives the intermittent wheel to drive the rotating shaft to rotate intermittently, realizing the cyclic operation of automated quantitative feeding. This transmission structure has precise matching and good operational stability. It can stably control the rotation frequency and angle of the rotating shaft, accurately control the raw material feeding interval and feeding amount, continuously maintain a uniform feeding state, reduce the frequency of manual adjustment, and improve the automation level of the device.

[0010] Preferably, the anti-blocking mechanism includes a vibration motor, which is fixedly connected to the bottom of both sides of the feeding hopper. Movable seats are fixedly connected to the front and rear sides of the feeding hopper. Linkage plates are fixedly connected to both sides of the inner side of the movable seats. Placement slots are provided on both sides of the movable seats. A sliding rod is movably connected inside the movable seats. An mounting plate is fixedly connected to the surface of the sliding rod. An auxiliary vibration spring is fixedly connected to the inner wall of the placement slot. The other side of the auxiliary vibration spring is fixedly connected to the surface of the mounting plate. The vibration motor drives the bottom of the feeding hopper to generate continuous micro-vibration. Simultaneously, the auxiliary vibration spring cooperates with the vibration to create an auxiliary shaking effect. This dual vibration action prevents raw materials from accumulating and sticking at the discharge port, effectively clearing clumped and stuck raw materials, preventing blockage at the feeding hopper discharge port. The overall structure is adaptable to the discharge requirements of powdery and granular extruded raw materials, continuously ensuring smooth discharge, reducing downtime for cleaning, and maintaining the continuity of the processing flow.

[0011] Preferably, the feeding guide mechanism includes guide wheels located at the top and bottom of the frame. Sliders are movably connected to the front and rear sides of the guide wheels, and the sliders are slidably connected to the front and rear sides of the frame. Lifting plates are provided at the top and bottom of the front and rear sides of the frame, with the surface of the lifting plate fixedly connected to the surface of the slider. Electric cylinders are fixedly connected to the right sides of the front and rear sides of the frame, and toothed plates are fixedly connected to the output ends of the electric cylinders. Adjusting gears mesh on both sides of the top and bottom of the toothed plates, and rotating arms are fixedly connected to the surfaces of the adjusting gears. The adjusting gears are movably connected to both sides of the front and rear sides of the frame, and the other side of the rotating arm is movably connected to the surface of the lifting plate. By setting up the guide wheels, the lifting plate and slider can be driven to slide up and down, thereby adjusting the distance between the upper and lower sets of guide wheels. Through mechanical transmission adjustment, the opening and closing distance between the guide wheels can be precisely changed. The structure has high adjustment accuracy and stable operation, enabling clamping and guiding of composite cables after cable extrusion molding, ensuring smooth cable conveying, preventing cable deviation and shaking, and improving the regularity of product processing.

[0012] Preferably, a filling plate is fixedly connected to both sides of the inner wall of the feeding hopper. The filling plate is located on both sides of the partition plate. By setting the filling plate, the dead corners of material storage inside the feeding hopper are reduced, which can prevent a small amount of raw material from accumulating in the gaps and corners, and prevent the raw material from becoming damp, clumping, or deteriorating due to long-term retention. At the same time, all raw materials can be smoothly fed out with the rotation of the partition plate, improving the utilization rate of raw materials, ensuring that the total amount of raw materials fed out each time is accurate, and further optimizing the effect of quantitative feeding.

[0013] Preferably, guide plates are fixedly connected to the front and rear sides of the bottom of the inner wall of the feeding hopper. The guide plates are located on the front and rear sides of the top of the hose. By setting the guide plates, the material can be concentrated and fall into the hose, avoiding the material from being scattered and spilled into the gaps around the discharge port, effectively reducing the waste of material. At the same time, it ensures that the material enters the extrusion equipment in a concentrated and uniform manner, making the feeding process more regular and orderly, and helping to improve the uniformity and stability of the extrusion process, which is suitable for the fine extrusion processing requirements of composite cables.

[0014] Preferably, the top of the mounting plate is movably connected to a support wheel, the surface of which contacts the bottom of the movable seat. By setting the support wheel, the sliding friction between the mounting plate and the movable seat is reduced, structural wear is reduced, the smooth movement of the mounting plate is ensured, the micro-vibration effect of the vibration mechanism is stably output, jamming is avoided, the anti-blocking effect is not affected, the service life of the mechanism is effectively extended, and the long-term stable operation of the equipment is guaranteed.

[0015] Preferably, a stabilizing sleeve is fitted onto the surface of the toothed plate. The stabilizing sleeve is fixedly connected to the front and rear sides of the frame. The stabilizing sleeve limits and guides the reciprocating toothed plate, effectively restricting its lateral deviation and swaying during operation. This ensures precise and stable translational trajectory of the toothed plate, leading to more accurate transmission adjustments of the adjusting gears and rotating arms. It also prevents deviations in the guide wheel adjustment spacing caused by toothed plate offset, improving the adjustment accuracy and operational stability of the material feeding guide mechanism and ensuring consistency in guiding cables of different specifications.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention utilizes a quantitative feeding and anti-clogging feeding structure. An intermittent transmission structure drives the partition plate to rotate intermittently, achieving equal and timed raw material delivery. This stabilizes the extrusion feed rate and rhythm, ensuring uniform feeding during the extrusion process. A combined vibration structure of a vibrating motor and auxiliary spring continuously shakes and clears the raw material at the outlet, improving material adhesion and accumulation, and preventing discharge blockage. The entire feeding system requires minimal manual intervention, enabling continuous and stable feeding operations, reducing equipment downtime, and improving the continuity and efficiency of composite cable extrusion.

[0017] 2. This invention, through a feeding guide mechanism and other structures, uses an electric cylinder to drive a toothed plate transmission, which in turn drives an adjusting gear and a rotating arm to flexibly adjust the opening and closing distance of the upper and lower guide wheels. The adjustment process is simple to operate, the transmission is stable, and the precision is controllable. It can adapt and adjust the guide clamping distance according to the different diameter specifications of tethered UAV optoelectronic composite cables, and can center and limit the forming of different sizes of cables, ensuring smooth transport. It effectively avoids problems such as cable transport deviation, shaking, and bending, adapts to the processing needs of multiple specifications of products, broadens the application range of the device, and ensures the uniformity of forming quality of cables of different diameters. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a perspective view of the extrusion equipment of the present invention; Figure 3 This is a perspective view of the feeding hopper of the present invention; Figure 4 This is a perspective view of the partition plate of the present invention; Figure 5 This is a perspective view of the movable base of the present invention; Figure 6 This is a perspective view of the auxiliary vibration spring of the present invention; Figure 7 This is a perspective view of the framework of the present invention; Figure 8 This is a perspective view of the rotating arm of the present invention.

[0019] In the diagram: 1. Cable core; 2. Filler layer; 3. Shielding layer; 4. Tensile protective layer; 5. Anti-wear and anti-scratch protective layer; 6. Workbench; 7. Extrusion equipment; 8. Hose; 9. Feed hopper; 10. Frame; 111. Rotating shaft; 112. Divider plate; 113. Intermittent wheel; 114. Control wheel; 115. Drive motor; 116. Drive gear; 117. Toothed belt; 121. Vibration motor; 122. Moving seat; 123. Linkage plate; 124. Placement slot; 125. Slide rod; 126. Mounting plate; 127. Auxiliary vibration spring; 131. Guide wheel; 132. Slider; 133. Lifting plate; 134. Electric cylinder; 135. Toothed plate; 136. Rotating arm; 137. Adjusting gear; 14. Filler plate; 15. Guide plate; 16. Support wheel; 17. Stabilizing sleeve. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1:

[0022] Please see Figure 1A special extrusion processing device for tethered UAV optical-electric composite cables includes a cable core 1, a filling layer 2 on the outside of the cable core 1, the filling layer 2 being composed of flame-retardant filler strips, a shielding layer 3 on the outside of the filling layer 2, the shielding layer 3 being composed of aluminum-plastic composite tape, a tensile protective layer 4 on the outside of the shielding layer 3, the tensile protective layer 4 being composed of polyester industrial filaments, and an anti-abrasion and anti-scratch protective layer 5 on the outside of the tensile protective layer 4, the anti-abrasion and anti-scratch protective layer 5 being composed of chlorinated polyethylene (CPE).

[0023] The specific implementation process of this invention is as follows: In use, the core structure of the optoelectronic composite cable integrates optical fiber and conductive copper core, serving as the core carrier for UAV signal transmission and power transmission, and undertaking the transmission functions of optoelectronic signals and power supply. The filling layer 2, wrapped around the outside of the cable core 1, fills the gaps inside the cable core 1, making the overall cable structure round and compact, effectively fixing the position of the internal optical fiber and core, and preventing displacement or compression damage to the cable core 1 during bending and pulling; it also has a buffering and heat insulation effect, reducing the damage of external pressure to the core transmission structure. The shielding layer 3, covering the outside of the filling layer 2, has excellent electromagnetic shielding performance and can isolate external electromagnetic signals. It eliminates noise interference and prevents electromagnetic leakage caused by the cable's own power transmission and signal transmission, ensuring stable photoelectric signal transmission and smooth power delivery during tethered drone operations, eliminating problems such as signal distortion and transmission interruption. It is suitable for the complex electromagnetic environment of drone operations outdoors. The wear-resistant and scratch-resistant protective layer 5, as the outermost protective structure of the cable, has wear-resistant, scratch-resistant, and impact-resistant properties. It can withstand sand and gravel friction, wall scratches, and impacts from foreign objects during outdoor operations. It also has certain waterproof, dustproof, and aging resistance capabilities, protecting all internal structures from external environmental erosion and physical damage. It is suitable for drone tethered operation scenarios in the field and complex sites, ensuring long-term stable operation of the cable. Example 2:

[0024] Please see Figure 2 , Figure 7 A special extrusion processing device for tethered drone optical-electric composite cables includes a workbench 6, an extrusion device 7 fixedly connected to the left side of the top of the workbench 6, a hose 8 connected to the left side of the top of the extrusion device 7, a feeding hopper 9 connected to the top of the hose 8, a frame 10 fixedly connected to the right side of the top of the workbench 6, a quantitative mechanism inside the feeding hopper 9, an anti-blocking mechanism at the bottom of the feeding hopper 9, and a material feeding guide mechanism inside the frame 10.

[0025] Furthermore, the installation of the feeding hopper 9 enables automated feeding of extruded raw materials, anti-clogging discharge, and stable guidance after cable forming. This optimizes the overall process flow of composite cable extrusion. The entire device has a well-organized structure and clear division of labor among its functional modules. It can meet the special extrusion processing requirements of tethered drone optoelectronic composite cables, reduce manual intervention, improve the continuity of processing steps, and ensure the stable and orderly progress of the processing.

[0026] Please see Figure 3 , Figure 4 , Figure 5 The metering mechanism includes a rotating shaft 111, which is movably connected inside the feeding hopper 9. The front and rear sides of the rotating shaft 111 extend to the front and rear sides of the feeding hopper 9. A partition plate 112 is fixedly connected to the surface of the rotating shaft 111. There are four partition plates 112, and the four partition plates 112 are evenly distributed at equal distances.

[0027] Furthermore, by setting the separator plate 112, the raw materials can be quantitatively divided and transported, so that the volume of raw materials falling into the hose 8 each time remains uniform and stable. This structure is simple and compact, and quantitative feeding is achieved by mechanical separation. There is no need for complex sensing equipment. It can effectively control the amount of extrusion raw materials, avoid the situation of inconsistent raw material supply, ensure the uniform feeding rhythm of extrusion processing, and adapt to the uniform processing requirements of composite cable extrusion.

[0028] Please see Figure 4 An intermittent wheel 113 is fixedly connected to the front side of the rotating shaft 111. A control wheel 114 is meshed on the left side of the intermittent wheel 113. The control wheel 114 is movably connected to the left side of the front side of the feeding hopper 9. A drive motor 115 is fixedly connected to the left side of the feeding hopper 9. A drive gear 116 is fixedly connected to both the output end of the drive motor 115 and the front side of the control wheel 114. A toothed belt 117 is sleeved on the surface of the drive gear 116.

[0029] Furthermore, by setting the intermittent wheel 113, the transmission structure drives the control wheel 114 to rotate, which in turn drives the intermittent wheel 113 to drive the rotating shaft 111 to rotate intermittently, realizing the cyclic operation of automated quantitative feeding. This transmission structure is precisely matched and has good operational stability. It can stably control the rotation frequency and angle of the rotating shaft 111, accurately control the raw material feeding interval and feeding amount, continuously maintain a uniform feeding state, reduce the frequency of manual adjustment, and improve the automation level of the device.

[0030] Please see Figure 6The anti-blocking mechanism includes a vibration motor 121, which is fixedly connected to the bottom of both sides of the feeding hopper 9. A movable seat 122 is fixedly connected to both the front and rear sides of the feeding hopper 9. A linkage plate 123 is fixedly connected to both sides of the inner side of the movable seat 122. A placement groove 124 is opened on both sides of the movable seat 122. A slide rod 125 is movably connected inside the movable seat 122. An mounting plate 126 is fixedly connected to the surface of the slide rod 125. An auxiliary vibration spring 127 is fixedly connected to the inner wall of the placement groove 124. The other side of the auxiliary vibration spring 127 is fixedly connected to the surface of the mounting plate 126.

[0031] Furthermore, the vibration motor 121 can drive the bottom of the feeding hopper 9 to generate continuous micro-vibration. At the same time, the auxiliary vibration spring 127 works with the vibration to form an auxiliary shaking effect. The dual vibration effect can prevent raw materials from accumulating and sticking at the discharge port, effectively clearing clumped and stuck raw materials, preventing blockage at the discharge port of the feeding hopper 9. The overall structure can be adapted to the discharge requirements of powdery and granular extruded raw materials, continuously ensuring smooth discharge, reducing the number of downtime cleanings, and maintaining the continuity of the processing flow.

[0032] Please see Figure 7 The material feeding guide mechanism includes a guide wheel 131, which is located at the top and bottom inside the frame 10. A slider 132 is movably connected to the front and rear sides of the guide wheel 131. The slider 132 is slidably connected to the front and rear sides of the frame 10. A lifting plate 133 is provided at the top and bottom of the front and rear sides of the frame 10. The surface of the lifting plate 133 is fixedly connected to the surface of the slider 132. An electric cylinder 134 is fixedly connected to the right side of the front and rear sides of the frame 10. A toothed plate 135 is fixedly connected to the output end of the electric cylinder 134. Adjusting gears 137 are meshed on both sides of the top and bottom of the toothed plate 135. A rotating arm 136 is fixedly connected to the surface of the adjusting gear 137. The adjusting gear 137 is movably connected to both sides of the front and rear sides of the frame 10. The other side of the rotating arm 136 is movably connected to the surface of the lifting plate 133.

[0033] Furthermore, by setting the guide wheel 131, the lifting plate 133 and the slider 132 can be driven to slide up and down, thereby adjusting the distance between the upper and lower sets of guide wheels 131. Through the mechanical transmission adjustment method, the opening and closing distance between the guide wheels 131 can be precisely changed. The structure has high adjustment accuracy and stable operation. It can clamp and guide the composite cable after the cable is extruded, ensuring that the cable is transported smoothly, avoiding cable deviation and shaking, and improving the regularity of product processing and forming.

[0034] Please see Figure 5 Both sides of the inner wall of the feeding hopper 9 are fixedly connected to the filling plate 14, which is located on both sides of the partition plate 112.

[0035] Furthermore, by setting the filling plate 14, the dead corners of material storage inside the feeding hopper 9 are reduced, which can prevent a small amount of raw material from accumulating in the gaps and corners, and prevent the raw material from becoming damp, clumping, or deteriorating due to long-term retention. At the same time, all raw materials can be smoothly fed out with the rotation of the partition plate 112, which improves the utilization rate of raw materials, ensures that the total amount of raw materials fed out each time is accurate, and further optimizes the effect of quantitative feeding.

[0036] Please see Figure 5 The bottom of the inner wall of the feeding hopper 9 is fixedly connected to the front and rear sides of the guide plate 15, which is located at the front and rear sides of the top of the hose 8.

[0037] Furthermore, by setting the guide plate 15, the material can be concentrated into the hose 8, avoiding the material from being scattered and spilled into the gaps around the outlet, effectively reducing the waste of material, while ensuring that the material enters the extrusion equipment 7 in a concentrated and uniform manner, making the feeding process more regular and orderly, and helping to improve the uniformity and stability of the extrusion process, which is suitable for the fine extrusion processing needs of composite cables.

[0038] Please see Figure 6 A support wheel 16 is movably connected to the top of the mounting plate 126, and the surface of the support wheel 16 contacts the bottom of the movable seat 122.

[0039] Furthermore, by setting the support wheel 16, the sliding friction between the mounting plate 126 and the movable seat 122 is reduced, structural wear is reduced, the smooth movement of the mounting plate 126 is ensured, the micro-vibration effect of the vibration mechanism is stably output, the jamming is avoided from affecting the anti-blocking effect, the service life of the mechanism is effectively extended, and the long-term stable operation of the equipment is guaranteed.

[0040] Please see Figure 8 A stabilizing sleeve 17 is fitted onto the surface of the toothed plate 135, and the stabilizing sleeve 17 is fixedly connected to the front and rear sides of the frame 10.

[0041] Furthermore, the stabilizing sleeve 17 provides limiting guidance for the reciprocating toothed plate 135. This effectively limits the left and right offset and swaying of the toothed plate 135 during operation, ensuring a precise and stable translational trajectory. Consequently, the transmission adjustment of the adjusting gear 137 and the rotating arm 136 becomes more precise, preventing deviations in the adjustment spacing of the guide wheel 131 due to toothed plate 135 offset. This improves the adjustment accuracy and operational stability of the material feeding guide mechanism, ensuring consistency in guiding cables of different specifications.

[0042] The specific implementation process of this invention is as follows: The plastic raw materials required for extrusion processing are evenly filled into the feeding hopper 9. The material distribution is regulated by the filling plates 14 on both sides of the feeding hopper 9, and the material is gathered by the bottom guide plate 15 to ensure that the material can flow smoothly to the interface between the hose 8 and the extrusion equipment 7. The equipment drive motor 115 is started to activate the quantitative feeding function. After the drive motor 115 starts working, it drives the output drive gear 116 to rotate synchronously. Through the toothed belt 117, it drives the control wheel 114 on the front side of the feeding hopper 9 to drive the gear 116 to rotate in conjunction, so that the control wheel 114 rotates at a constant speed. The control wheel 114 meshes with the intermittent wheel 113 for transmission. The control wheel 114 rotates one revolution. The intermittent wheel 113 rotates 90°, and the intermittent wheel 113 is fixedly linked with the rotating shaft 111, which in turn drives the rotating shaft 111 inside the feeding hopper 9 to rotate 90° synchronously. Four partition plates 112 are evenly distributed on the surface of the rotating shaft 111. The four partition plates 112 divide the material storage space inside the feeding hopper 9 into four equal parts. The 360° annular evenly divided structure can complete a quantitative discharge once every 90° rotation. Through intermittent rotation, the material is continuously and equally transported to the bottom hose 8, providing a stable and accurate material supply for the extrusion equipment 7, completely solving the problems of uneven feeding and large deviation in extrusion thickness in traditional methods, and ensuring that the thickness of the composite cable extrusion layer is uniform. While feeding material in a quantitative manner, the vibration motors 121 on both sides of the bottom of the feeding hopper 9 are started to activate the anti-blocking and anti-shaking function. After the vibration motors 121 work, they drive the entire feeding hopper 9 to generate high-frequency micro-amplitude left and right vibrations. At the same time, they drive the moving seats 122 on the front and rear sides of the feeding hopper 9 to shake synchronously. During the shaking of the moving seats 122, the inner linkage plate 123 and the placement groove 124 move synchronously with the overall structure, so that the entire moving seat 122 slides back and forth along the surface of the slide rod 125. The auxiliary vibration spring 127 on the inner wall of the placement groove 124 works with the mounting plate 126 to perform high-frequency extension and contraction vibration. The double vibration superposition continuously disperses and clears the material in the discharge port of the feeding hopper 9 and the inside of the hose 8. This can effectively prevent the accumulation, clumping, and adhesion of plastic raw materials from blocking the pipeline, ensuring that the material is continuously and smoothly transported into the extrusion equipment 7, ensuring the continuity of extrusion processing, and avoiding the problems of defective products and equipment downtime caused by material interruption and blockage. Meanwhile, the support wheel 16 on the top of the mounting plate 126 is in close contact with the bottom of the movable seat 122, which can reduce sliding friction and ensure the smoothness of vibration and shaking process.

[0043] After the extrusion equipment 7 completes the melting and extrusion of the material and initially forms the composite cable, the spacing of the guide wheels 131 inside the frame 10 is adjusted according to the actual diameter of the composite cable to be processed to meet the cable conveying and guiding requirements. The electric cylinders 134 on the front and rear sides of the frame 10 are activated. The output end of the electric cylinder 134 drives the toothed plate 135 to move smoothly to the right. The toothed plate 135 maintains linear displacement under the limiting and fixing of the outer stabilizing sleeve 17 to avoid deviation and shaking. During the movement of the toothed plate 135, the two sets of adjusting gears 137 are driven to move in the same direction through the meshing transmission of the adjusting gears 137 on the upper and lower sides. The rotating arm 136, which is fixed on the surface, is driven to rotate inward by the adjusting gear 137. When the rotating arm 136 rotates, it pulls the lifting plate 133 to move closer to each other. The lifting plate 133 drives the inner slider 132 to slide smoothly along the inner wall of the frame 10. Finally, it drives the upper and lower guide wheels 131 to move synchronously towards each other, gradually reducing the distance between the guide wheels 131. The distance is compared with the diameter of the composite cable in real time. When the distance between the guide wheels 131 is completely matched with the cable specifications, can fit and clamp the cable, and guide and transport it smoothly, the electric cylinder 134 is turned off, and the distance adjustment is completed.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tethered unmanned aerial vehicle (UAV) optoelectronic composite cable, comprising a cable core (1), characterized in that: The cable core (1) is provided with a filling layer (2) on the outside, a shielding layer (3) on the outside of the filling layer (2), a tensile protection layer (4) on the outside of the shielding layer (3), and an anti-wear and anti-scratch protection layer (5) on the outside of the tensile protection layer (4).

2. A special extrusion processing device for tethered drone optical-electric composite cables, used to process the tethered drone optical-electric composite cable as described in claim 1, characterized in that: The device includes a workbench (6), an extrusion device (7) is fixedly connected to the left side of the top of the workbench (6), a hose (8) is connected to the left side of the top of the extrusion device (7), a feeding hopper (9) is connected to the top of the hose (8), a frame (10) is fixedly connected to the right side of the top of the workbench (6), a quantitative mechanism is provided inside the feeding hopper (9), an anti-blocking mechanism is provided at the bottom of the feeding hopper (9), and a material feeding guide mechanism is provided inside the frame (10).

3. The extrusion processing device for tethered UAV optical-electric composite cables according to claim 2, characterized in that: The quantitative mechanism includes a rotating shaft (111), which is movably connected to the inside of the feeding hopper (9). The front and rear sides of the rotating shaft (111) extend to the front and rear sides of the feeding hopper (9). A partition plate (112) is fixedly connected to the surface of the rotating shaft (111). There are four partition plates (112), and the four partition plates (112) are evenly distributed at equal distances.

4. The extrusion processing device for tethered UAV optical-electric composite cables according to claim 3, characterized in that: An intermittent wheel (113) is fixedly connected to the front side of the rotating shaft (111). A control wheel (114) is engaged on the left side of the intermittent wheel (113). The control wheel (114) is movably connected to the left side of the front side of the feeding hopper (9). A drive motor (115) is fixedly connected to the left side of the feeding hopper (9). A drive gear (116) is fixedly connected to the output end of the drive motor (115) and the front side of the control wheel (114). A toothed belt (117) is sleeved on the surface of the drive gear (116).

5. The extrusion processing device for tethered UAV optical-electric composite cables according to claim 2, characterized in that: The anti-blocking mechanism includes a vibration motor (121), which is fixedly connected to the bottom of both sides of the feeding hopper (9). The front and rear sides of the feeding hopper (9) are both fixedly connected to a movable seat (122). Both sides of the inner side of the movable seat (122) are fixedly connected to a linkage plate (123). Both sides of the movable seat (122) are provided with a placement slot (124). The inside of the movable seat (122) is movably connected to a slide rod (125). The surface of the slide rod (125) is fixedly connected to a mounting plate (126). The inner wall of the placement slot (124) is fixedly connected to an auxiliary vibration spring (127). The other side of the auxiliary vibration spring (127) is fixedly connected to the surface of the mounting plate (126).

6. The extrusion processing device for tethered UAV optical-electric composite cables according to claim 2, characterized in that: The feeding guide mechanism includes a guide wheel (131), which is located at the top and bottom inside the frame (10). A slider (132) is movably connected to both the front and rear sides of the guide wheel (131). The slider (132) is slidably connected to the front and rear sides of the frame (10). A lifting plate (133) is provided at the top and bottom of both the front and rear sides of the frame (10). The surface of the lifting plate (133) is fixedly connected to the surface of the slider (132). The frame (10) Electric cylinders (134) are fixedly connected to the front and rear right sides of the frame (10). A toothed plate (135) is fixedly connected to the output end of the electric cylinder (134). Adjusting gears (137) are meshed on both sides of the top and bottom of the toothed plate (135). A rotating arm (136) is fixedly connected to the surface of the adjusting gear (137). The adjusting gear (137) is movably connected to the front and rear sides of the frame (10). The other side of the rotating arm (136) is movably connected to the surface of the lifting plate (133).

7. The extrusion processing device for tethered UAV optical-electric composite cables according to claim 2, characterized in that: Both sides of the inner wall of the feeding hopper (9) are fixedly connected to a filling plate (14), which is located on both sides of the partition plate (112).

8. The extrusion processing device for tethered UAV optical-electric composite cables according to claim 2, characterized in that: The front and rear sides of the bottom of the inner wall of the feeding hopper (9) are fixedly connected to guide plates (15), and the guide plates (15) are located on the front and rear sides of the top of the hose (8).

9. The extrusion processing device for tethered UAV optical-electric composite cables according to claim 5, characterized in that: The top of the mounting plate (126) is movably connected to a support wheel (16), the surface of which contacts the bottom of the movable seat (122).

10. The extrusion processing device for tethered UAV optical-electric composite cables according to claim 6, characterized in that: The surface of the toothed plate (135) is fitted with a stabilizing sleeve (17), which is fixedly connected to the front and rear sides of the frame (10).

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