Flame-retardant power cable processing device and processing method

Through the collaborative tensioning of the cable with the friction block, combined with the automated specification adaptation of the servo motor drive and the synchronous cutting of the double-knife, the shortcomings in accuracy, efficiency and safety of traditional cable processing devices are solved, and high-precision and efficient cable cutting and safe production are achieved.

CN120394731AInactive Publication Date: 2025-08-01SHENYANG BAOFENG CABLE CO LTD
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Patent Information

Application Number
CN202510926546.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2025-08-01
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional cable processing devices have problems such as insufficient cutting accuracy, low replacement efficiency and poor safety, especially when facing cables of different diameters, it is difficult to maintain stable clamping and cutting perpendicularity.

Method used

The wrapping device and friction block are used to tighten the cables together, combined with the automated specification adaptation of the servo motor drive and the synchronous cutting of the double knife. Through the coordinated work of the support device and the cutting device, stable clamping and high-precision cutting of the cable are achieved.

Benefits of technology

It improves the accuracy and efficiency of cable cutting, reduces the replacement time, ensures the flat cutting end surface, and improves production safety and equipment life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a flame-retardant power cable processing device and method, and relates to the technical field of cable processing. Comprising a supporting device, the supporting device comprises a base and further comprises a guide block, a protective shell is fixedly connected to the outer wall of the top of the base, positioning pipes are symmetrically and fixedly connected to the outer wall of the protective shell, a discharging hole is formed in the wall of the base, and a cutting device is fixedly connected to the outer wall of the base; the cutting device comprises an adjusting device, the adjusting device is fixedly connected with the outer wall of the base, the outer wall of the base is symmetrically and fixedly connected with guiding devices, the outer wall of the bottom of the base is fixedly connected with a wrapping device, and the outer wall of the base is fixedly connected with a cutting device. Therefore, the perpendicularity of the cut is reduced, the cable is effectively prevented from deviating and shaking during cutting, the cut end face is ensured to be smooth, and the high-precision machining requirement of the flame-retardant cable is met.
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Description

Technical Field

[0001] The present invention relates to the technical field of cable processing, and specifically relates to a flame-retardant power cable processing device and a processing method. Background Art

[0002] In the field of flame-retardant power cable production, high-precision cutting and efficient type change are key links to ensure product quality and production efficiency. Against the background of the rapid development of fields such as new energy and smart power grids, the requirements for cable cutting accuracy, multi-specification adaptability, and processing safety are increasing day by day. However, traditional cable processing devices have technical problems: Most existing devices adopt a single-knife cutting structure. When cutting, the cable needs to be manually fixed, and it is difficult to avoid cable deviation, resulting in a high verticality error of the cut, which affects the subsequent connection and use safety of the cable. At the same time, when facing the processing requirements of cables with different diameters, it is necessary to manually adjust the position of the fixture, and the type change time for a single time is relatively long, and manual operation is likely to cause fixture positioning deviation, resulting in unstable clamping of the cable. Summary of the Invention

[0003] (I) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the present invention provides a flame-retardant power cable processing device and a processing method. Through the coordinated tensioning of the wrapping device and the friction block, the automatic specification adaptation driven by the servo motor, the double-knife synchronous cutting, and the double protection structure, the deficiencies of traditional devices in precision control, type change efficiency, waste treatment, and safety are effectively solved, and it is particularly suitable for cable production with strict requirements for processing precision, efficiency, and safety.

[0005] (II) Technical Solutions

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A flame-retardant power cable processing device includes a support device. The support device includes a base. The support device further includes a guide block. The outer wall of the top of the base is fixedly connected with a protective shell. The outer wall of the protective shell is symmetrically and fixedly connected with positioning tubes. A blanking hole is opened in the wall of the base. The outer wall of the base is fixedly connected with a cutting device; The cutting device includes an adjusting device. The adjusting device is fixedly connected with the outer wall of the base. The outer wall of the base is symmetrically and fixedly connected with a guiding device. The outer wall of the bottom of the base is fixedly connected with a wrapping device. The outer wall of the base is fixedly connected with a cutting device. The adjusting device includes a support frame. A servo motor is arranged outside the support frame. The output end of the servo motor is fixedly connected with a driving rod. Symmetrically fixed connections are arranged on the outer wall of the driving rod with gears. A toothed ring is arranged outside the gears. A guiding groove is opened in the wall of the toothed ring.

[0007] Preferably, the outer wall of the bottom of the support frame is fixedly connected to the outer wall of the base, the side wall of the support frame is fixedly connected to the inner side wall of the protective shell, the outer wall of the driving rod is rotatably connected to the inner wall of the support frame, the gear meshes with the toothed ring, and the outer wall of the servo motor is fixedly connected to the outer wall of the protective shell.

[0008] Preferably, the guiding device includes a support ring. The outer wall of the support ring is fixedly connected with a positioning frame. The outer wall of the support ring is slidably connected with a clamping device. The outer wall of the support ring is provided with a positioning hole. The clamping device includes a connecting frame. The outer wall of the connecting frame is rotatably connected with a roller. The outer wall of the connecting frame is fixedly connected with a limiting shaft. A positioning groove is formed in the wall of the connecting frame. A sliding strip is slidably connected to the inner wall of the connecting frame. The outer wall of the sliding strip is fixedly connected with a friction block.

[0009] Preferably, the outer wall of the support ring is fixedly connected to the outer wall of the base. The outer wall of the support ring is rotatably connected to the outer wall of the driving rod through the positioning hole. The outer wall of the limiting shaft is slidably connected to the inner wall of the toothed ring through the guiding groove. The connecting frame is slidably connected to the outer wall of the positioning frame through the positioning groove. By means of the adjusting device driving the toothed ring to cooperate with the guiding groove through the servo motor, the distance between the clamping devices can be automatically adjusted to adapt to cables of different diameters. When changing the specifications, there is no need for manual adjustment, and at the same time, the model change time is shortened, thereby improving the production efficiency.

[0010] Preferably, the wrapping device includes a fixed block. The outer wall of the fixed block is fixedly connected with a cylinder. One end of the cylinder far from the fixed block is fixedly connected with a limiting strip. The outer wall of the top of the limiting strip is fixedly connected with a support tube. A fitting groove is formed in the outer wall of the support tube. The outer wall of the support tube is fixedly connected with a linkage block. The outer wall of the linkage block is fixedly connected with a connecting shaft. The inner wall of the friction block is rotatably connected to the outer wall of the connecting shaft. The outer wall of the top of the fixed block is fixedly connected to the outer wall of the base. The outer wall of the limiting strip is slidably connected to the outer wall of the base. By means of the wrapping device and the friction block cooperating to tension the cable, combined with the tool rest guiding structure, the perpendicularity of the cut is reduced, effectively avoiding the deviation and shaking of the cable during cutting, ensuring that the cutting end face is flat, and meeting the high-precision processing requirements of flame-retardant cables.

[0011] Preferably, the cutting device includes a guiding frame, an outer wall of the guiding frame is fixedly connected with a tool rest, an outer wall of the guiding frame is fixedly connected with a protective plate, an outer wall of the protective plate is fixedly connected with a DC motor, an output end of the DC motor is fixedly connected with a bidirectional screw rod, an outer wall of the bidirectional screw rod is threadedly connected with a first cutting knife, an outer wall of the bidirectional screw rod is threadedly connected with a second cutting knife, an outer wall of the guiding frame is fixedly connected with an outer wall of a base, an outer wall of the protective plate is fixedly connected with a side wall of the base, and inner walls of the tool rest are slidably connected with outer walls of the first cutting knife and the second cutting knife respectively. By driving the bidirectional screw rod through the DC motor to drive the first and second cutting knives to move towards each other, the cutting efficiency is improved compared with the traditional single knife, and the waste can be automatically collected through the blanking hole, reducing the manual cleaning process and optimizing the processing flow.

[0012] A flame-retardant power cable processing device and a processing method include the following steps: Step 1, select an oxygen-free copper rod, cold draw it through a wire drawing machine, remove the surface oil stain, and then regularly twist it in a right-handed direction through a multi-strand stranding machine to form a conductor core wire. Subsequently, the stranded conductor is preheated by medium-frequency induction and sprayed with a silane coupling agent. Step 2, heat the low-smoke and halogen-free polyolefin insulating material to 190 - 210 °C and melt it through a bidirectional screw extruder, extrude it through a right-angle die to form an insulating layer on the surface of the conductor, and synchronously cool and shape it quickly through a cold water tank. Subsequently, outside the insulating layer, a flame-retardant rubber material containing magnesium hydroxide is evenly coated by a metering pump, and a fiberglass tape is wound. Step 3, heat the chlorinated polyethylene outer sheath material to 180 - 200 °C by using a single and double screw extruder, extrude it through an annular die and coat it outside the flame-retardant layer to form an outer sheath, and then enter a 60 °C hot air tunnel for vulcanization treatment. Step 4, after the electrical performance of the cable after the outer sheath treatment is detected, it enters the cutting and processing link: the cable will be cut to a fixed length through a cutting device. After the cut cable is checked for length, it is wound onto a cable reel, and a polyethylene moisture-proof film is wound around the outer layer and sealed.

[0013] (III) Beneficial effects

[0014] The present invention provides a flame-retardant power cable processing device and a processing method. It has the following beneficial effects: 1. For this processing device, the cable is tensioned by the cooperation of the wrapping device and the friction block, and combined with the tool rest guiding structure, the perpendicularity of the cut is reduced, effectively avoiding the deviation and shaking of the cable during cutting, ensuring that the cutting end face is flat, and meeting the high-precision processing requirements of the flame-retardant cable.

[0015] 2. For this processing device, the adjusting device drives the gear ring to cooperate with the guiding groove through a servo motor, and can automatically adjust the distance between the clamping devices to adapt to cables of different diameters. When changing the specifications, there is no need for manual adjustment, and at the same time, the changeover time is shortened, thereby improving the production efficiency.

[0016] 3. The processing device drives a bidirectional screw through a DC motor to drive the first and second cutting knives to move towards each other, which improves the cutting efficiency compared with traditional single knives. Moreover, the waste can be automatically collected through the blanking hole, reducing the manual cleaning process and optimizing the processing flow.

[0017] 4. The processing device forms a double protection through the protective shell and the protection plate, isolating the rotating parts from the cutting debris to ensure the safety of the operator; at the same time, it prevents dust and sundries from entering the device, reducing the wear of mechanical parts and the failure of electrical components, thereby prolonging the service life of the equipment. Description of the Drawings

[0018] Figure 1 is a schematic structural view of the whole of the present invention; Figure 2 is a schematic internal structural view of the whole of the present invention; Figure 3 is a schematic structural view of the support device of the present invention; Figure 4 is a schematic structural view of the cutting-off device of the present invention; Figure 5 is a schematic partial structural view of the adjusting device of the present invention; Figure 6 is a schematic structural view of the guiding device of the present invention; Figure 7 is a schematic structural view of the clamping device of the present invention; Figure 8 is a schematic structural view of the wrapping device of the present invention; Figure 9 is a schematic structural view of the cutting device of the present invention.

[0019] In the figures: 1. Support device; 2. Cutting-off device; 11. Base; 12. Guide block; 13. Protective shell; 14. Positioning tube; 15. Blanking hole; 21. Adjusting device; 22. Guiding device; 23. Wrapping device; 24. Cutting device; 211. Support frame; 212. Servo motor; 213. Driving rod; 214. Gear; 215. Tooth ring; 216. Guide groove; 221. Support ring; 222. Positioning frame; 223. Clamping device; 224. Positioning hole; 2231. Connecting frame; 2232. Roller; 2233. Limiting shaft; 2234. Positioning groove; 2235. Sliding strip; 2236. Friction block; 231. Fixed block; 232. Cylinder; 233. Limiting strip; 234. Support tube; 235. Linking block; 236. Connecting shaft; 237. Fitting groove; 241. Guide frame; 242. Protection plate; 243. DC motor; 244. Bidirectional screw; 245. First cutting knife; 246. Second cutting knife; 247. Tool rest. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-9 , the present invention provides a technical solution: a flame-retardant power cable processing device, including a support device 1. The support device 1 includes a base 11, and the support device 1 further includes a guide block 12. The outer wall of the top of the base 11 is fixedly connected with a protective shell 13. The outer wall of the protective shell 13 is symmetrically and fixedly connected with positioning tubes 14. A blanking hole 15 is opened in the wall of the base 11. The outer wall of the base 11 is fixedly connected with a cutting device 2; The cutting device 2 includes an adjusting device 21. The adjusting device 21 is fixedly connected with the outer wall of the base 11. The outer wall of the base 11 is symmetrically and fixedly connected with a guiding device 22. The outer wall of the bottom of the base 11 is fixedly connected with a wrapping device 23. The outer wall of the base 11 is fixedly connected with a cutting device 24. The adjusting device 21 includes a support frame 211. A servo motor 212 is arranged outside the support frame 211. The output end of the servo motor 212 is fixedly connected with a driving rod 213. The outer wall of the driving rod 213 is symmetrically and fixedly connected with gears 214. A toothed ring 215 is arranged outside the gears 214. A guiding groove 216 is opened in the wall of the toothed ring 215. When facing the processing requirements of cables with different diameter specifications, the adjusting device 21 plays a role. After the servo motor 212 is started, the driving rod 213 at its output end starts to rotate. Supported by the positioning holes 224, the driving rod 213 rotates stably. The gears 214 symmetrically fixed on the outer wall of the driving rod 213 rotate accordingly. The gears 214 mesh with the toothed ring 215, thereby driving the toothed ring 215 to rotate. The guiding groove 216 in the wall of the toothed ring 215 has an oblique trajectory. The limiting shaft 2233 is fixed on the connecting frame 2231. Therefore, the connecting frame 2231 will slide along the outer wall of the positioning frame 222 as the limiting shaft 2233 slides. The rollers 2232 on the outer wall of the connecting frame 2231 can always fit the cable surface during the sliding process, playing a supporting and guiding role.

[0022] The outer wall of the bottom of the support frame 211 is fixedly connected with the outer wall of the base 11. The side wall of the support frame 211 is fixedly connected with the inner side wall of the protective shell 13. The outer wall of the driving rod 213 is rotatably connected with the inner wall of the support frame 211. The gears 214 mesh with the toothed ring 215. The outer wall of the servo motor 212 is fixedly connected with the outer wall of the protective shell 13.

[0023] The guiding device 22 includes a support ring 221. The outer wall of the support ring 221 is fixedly connected with a positioning frame 222. The outer wall of the support ring 221 is slidably connected with a clamping device 223. The outer wall of the support ring 221 is provided with a positioning hole 224. The clamping device 223 includes a connecting frame 2231. The outer wall of the connecting frame 2231 is rotatably connected with a roller 2232. The outer wall of the connecting frame 2231 is fixedly connected with a limiting shaft 2233. A positioning groove 2234 is formed in the wall of the connecting frame 2231. The inner wall of the connecting frame 2231 is slidably connected with a sliding strip 2235. The outer wall of the sliding strip 2235 is fixedly connected with a friction block 2236.

[0024] The outer wall of the support ring 221 is fixedly connected with the outer wall of the base 11. The outer wall of the support ring 221 is rotatably connected with the outer wall of the driving rod 213 through the positioning hole 224. The outer wall of the limiting shaft 2233 is slidably connected with the inner wall of the toothed ring 215 through the guiding groove 216. The connecting frame 2231 is slidably connected with the outer wall of the positioning frame 222 through the positioning groove 2234.

[0025] The wrapping device 23 includes a fixing block 231. The outer wall of the fixing block 231 is fixedly connected with a cylinder 232. One end of the cylinder 232 away from the fixing block 231 is fixedly connected with a limiting strip 233. The outer wall of the top of the limiting strip 233 is fixedly connected with a support pipe 234. The outer wall of the support pipe 234 is provided with a fitting groove 237. The outer wall of the support pipe 234 is fixedly connected with a linkage block 235. The outer wall of the linkage block 235 is fixedly connected with a connecting shaft 236. The inner wall of the friction block 2236 is rotatably connected with the outer wall of the connecting shaft 236. The outer wall of the top of the fixing block 231 is fixedly connected with the outer wall of the base 11. The outer wall of the limiting strip 233 is slidably connected with the outer wall of the base 11. When the wrapping device 23 is started, the cylinder 232 on the fixing block 231 starts to work. The piston rod of the cylinder 232 pushes the limiting strip 233 to slide along the outer wall of the base 11, driving the support pipes 234 on both sides to approach the tool holder 247 synchronously. The fitting groove 237 on the outer wall of the support pipe 234 can closely fit the contour of the tool holder 247, thereby realizing the firm clamping of the tool holder 247 and preventing the tool holder 247 from displacing during the cutting process. While the support pipe 234 is moving, the linkage block 235 also moves accordingly. The linkage block 235 drives the connecting shaft 236 to move. The connecting shaft 236 is rotatably connected with the friction block 2236, thereby prompting the friction block 2236 to approach the surface of the cable and generate a clamping force.

[0026] The cutting device 24 includes a guiding frame 241. A tool rest 247 is fixedly connected to the outer wall of the guiding frame 241. A protective plate 242 is fixedly connected to the outer wall of the guiding frame 241. A DC motor 243 is fixedly connected to the outer wall of the protective plate 242. An output end of the DC motor 243 is fixedly connected to a bidirectional screw 244. A first cutting knife 245 is threadedly connected to the outer wall of the bidirectional screw 244. A second cutting knife 246 is threadedly connected to the outer wall of the bidirectional screw 244. The outer wall of the guiding frame 241 is fixedly connected to the outer wall of the base 11. The outer wall of the protective plate 242 is fixedly connected to the side wall of the base 11. Inner walls of the tool rest 247 are respectively in sliding connection with the outer walls of the first cutting knife 245 and the second cutting knife 246. After the cable is stably clamped, the DC motor 243 of the cutting device 24 is started. Supported by the guiding frame 241 and the protective plate 242, the DC motor 243 rotates stably. An output shaft of the DC motor 243 drives the bidirectional screw 244 to rotate. Since both the first cutting knife 245 and the second cutting knife 246 are threadedly connected to the bidirectional screw 244, and the bidirectional screw 244 adopts a double-thread design, when the bidirectional screw 244 rotates, the first cutting knife 245 and the second cutting knife 246 can move towards each other at the same speed along the inner walls of the tool rest 247. The inner walls of the tool rest 247 provide guidance for the movement of the first cutting knife 245 and the second cutting knife 246, ensuring a smooth cutting process.

[0027] A flame-retardant power cable processing device and a processing method include the following steps: Step 1: Select an oxygen-free copper rod, cold-draw it through a wire drawing machine, remove the surface oil stain, and then perform right-handed regular stranding through a multi-strand stranding machine to form a conductor core wire. Subsequently, perform medium-frequency induction preheating on the stranded conductor and spray a silane coupling agent. Step 2: Heat the low-smoke and halogen-free polyolefin insulating material to 190 - 210 °C and melt it through a bidirectional screw extruder, extrude it through a right-angle die, form an insulating layer on the surface of the conductor, and synchronously cool and shape it quickly through a cold water tank. Subsequently, outside the insulating layer, evenly coat a flame-retardant rubber material containing magnesium hydroxide by using a metering pump and wind a glass fiber tape. Step 3: Heat the chlorinated polyethylene outer sheath material to 180 - 200 °C by using a single and double screw extruder, extrude it through an annular die and coat it outside the flame-retardant layer to form an outer sheath, and then enter a 60 °C hot air tunnel for vulcanization treatment. Step 4: After performing electrical performance detection on the cable that has completed the outer sheath treatment, enter the cutting and processing link: The cable will be cut to a fixed length through the cutting device 2. After the cut cable is rechecked for length, it is wound onto a cable reel, and a polyethylene moisture-proof film is wound around the outer layer and packaged.

[0028] When the flame-retardant power cable processing device is operating, the support device 1 and the cutting device 2 cooperate with each other to complete the stable clamping and cutting of the cable. In the initial state, first, the cable is moved along the direction guided by the guide block 12, and the part to be cut is transferred into the positioning tube 14, reaches between the support frames 211, and finally is transferred into the internal space of the tool holder 247. During this process, the guiding device 22 plays a role in preliminary positioning and guiding to ensure that the cable can accurately enter the processing area; Subsequently, the wrapping device 23 is started. The cylinder 232 on the fixed block 231 starts to work. The piston rod of the cylinder 232 pushes the limiting strip 233 to slide along the outer wall of the base 11, driving the support tubes 234 on both sides to approach the tool holder 247 synchronously. The fitting grooves 237 on the outer wall of the support tube 234 can closely fit the contour of the tool holder 247, thereby realizing the stable clamping of the tool holder 247 and preventing the tool holder 247 from shifting during the cutting process. While the support tube 234 is moving, the linkage block 235 also moves accordingly. The linkage block 235 drives the connecting shaft 236 to move. The connecting shaft 236 is rotatably connected to the friction block 2236, thereby prompting the friction block 2236 to approach the surface of the cable and generate a clamping force. The friction block 2236 is slidably connected to the inner wall of the connecting frame 2231 through the sliding strip 2235. The arc-shaped setting installed on the sliding strip 2235 enables the friction block 2236 to adapt to the curvature of the cable surface. While clamping the cable, the cable is tensioned to avoid uneven cuts caused by cable slack during cutting; When the cable is stably clamped, the DC motor 243 of the cutting device 24 is started. Supported by the guide frame 241 and the protective plate 242, the DC motor 243 rotates stably. The output shaft of the DC motor 243 drives the bidirectional screw 244 to rotate. Since both the first cutting knife 245 and the second cutting knife 246 are threadedly connected to the bidirectional screw 244, and the bidirectional screw 244 adopts a double-thread design, when the bidirectional screw 244 rotates, the first cutting knife 245 and the second cutting knife 246 can move towards each other along the inner wall of the tool holder 247 at the same speed. The inner wall of the tool holder 247 provides guidance for the movement of the first cutting knife 245 and the second cutting knife 246 to ensure a smooth cutting process. As the two cutting knives gradually approach, the cable is cut. The waste generated by the cutting falls into the support tube 234. When the cutting is completed and the wrapping device 23 is moved away, it directly falls through the material discharge hole 15 in the wall of the base 11 and rolls to the collection device through the guide block 12 at the bottom, eliminating the need for manual cleaning in the middle and improving the processing efficiency; When facing the processing requirements of cables with different diameter specifications, the adjusting device 21 comes into play. After the servo motor 212 is started, the driving rod 213 at its output end begins to rotate. Supported by the positioning hole 224, the driving rod 213 rotates stably. The gears 214 symmetrically fixed on the outer wall of the driving rod 213 rotate accordingly. The gears 214 mesh with the toothed ring 215, thereby driving the toothed ring 215 to rotate. The guiding groove 216 in the wall of the toothed ring 215 has an oblique trajectory. The limiting shaft 2233 is embedded in the guiding groove 216. When the toothed ring 215 rotates, the limiting shaft 2233 will slide along the trajectory of the guiding groove 216. The limiting shaft 2233 is fixed on the connecting frame 2231. Therefore, the connecting frame 2231 will slide along the outer wall of the positioning frame 222 as the limiting shaft 2233 slides. The rollers 2232 on the outer wall of the connecting frame 2231 can always fit the surface of the cable during the sliding process, playing a role in support and guidance. At the same time, the connecting frame 2231 fits the positioning frame 222 through the positioning groove 2234, ensuring the stability of the moving process. As the connecting frame 2231 moves, the distance between the friction block 2236 and the rollers 2232 changes, thereby realizing the adaptive clamping of cables with different diameters. Since the clamping devices 223 are evenly distributed on the support ring 221, a uniform clamping force on the cable can be always maintained during the adjustment process, ensuring that the cable is difficult to have problems such as eccentricity and shaking during the cutting process; The protective shell 13 and the protective plate 242 provide safety protection for the device. The protective shell 13 encloses the core transmission components such as the adjusting device 21, preventing operators from accidentally contacting the rotating components and causing injuries. At the same time, it can also prevent external dust and debris from entering the device and affecting the transmission accuracy. The protective plate 242 is installed below the cutting device 24, blocking the debris that may splash during the cutting process and providing protection for electrical components such as the DC motor 243.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame-retardant power cable processing device, including a support device (1), the support device (1) includes a base (11), and is characterized in that: The support device (1) further includes a guide block (12). An outer wall of the top of the base (11) is fixedly connected with a protective shell (13). Symmetrically, an outer wall of the protective shell (13) is fixedly connected with positioning tubes (14). A blanking hole (15) is formed in a wall of the base (11). An outer wall of the base (11) is fixedly connected with a cutting device (2). The cutting device (2) includes an adjusting device (21). The adjusting device (21) is fixedly connected with the outer wall of the base (11). Symmetrically, an outer wall of the base (11) is fixedly connected with a guiding device (22). An outer wall of the bottom of the base (11) is fixedly connected with a wrapping device (23). An outer wall of the base (11) is fixedly connected with a cutting device (24). The adjusting device (21) includes a support frame (211). A servo motor (212) is arranged outside the support frame (211). An output end of the servo motor (212) is fixedly connected with a driving rod (213). Symmetrically, an outer wall of the driving rod (213) is fixedly connected with gears (214). A toothed ring (215) is arranged outside the gears (214). A guiding groove (216) is formed in a wall of the toothed ring (215).

2. A flame-retardant power cable processing device according to claim 1, characterized in that: An outer wall of the bottom of the support frame (211) is fixedly connected with the outer wall of the base (11). A side wall of the support frame (211) is fixedly connected with a side wall inside the protective shell (13). An outer wall of the driving rod (213) is rotatably connected with an inner wall of the support frame (211). The gears (214) are meshed with the toothed ring (215). An outer wall of the servo motor (212) is fixedly connected with the outer wall of the protective shell (13).

3. A flame-retardant power cable processing device according to claim 1, characterized in that: The guiding device (22) includes a support ring (221). An outer wall of the support ring (221) is fixedly connected with a positioning frame (222). A clamping device (223) is slidably connected with the outer wall of the support ring (221). A positioning hole (224) is formed in the outer wall of the support ring (221).

4. A flame-retardant power cable processing device according to claim 3, characterized in that: The clamping device (223) includes a connecting frame (2231). A roller (2232) is rotatably connected with the outer wall of the connecting frame (2231). An outer wall of the connecting frame (2231) is fixedly connected with a limiting shaft (2233). A positioning groove (2234) is formed in a wall of the connecting frame (2231). A sliding strip (2235) is slidably connected with an inner wall of the connecting frame (2231). A friction block (2236) is fixedly connected with an outer wall of the sliding strip (2235).

5. A flame-retardant power cable processing device according to claim 4, characterized in that: An outer wall of the support ring (221) is fixedly connected with the outer wall of the base (11). The outer wall of the support ring (221) is rotatably connected with the outer wall of the driving rod (213) through the positioning hole (224). An outer wall of the limiting shaft (2233) is slidably connected with an inner wall of the toothed ring (215) through the guiding groove (216). The connecting frame (2231) is slidably connected with the outer wall of the positioning frame (222) through the positioning groove (2234).

6. A flame-retardant power cable processing device according to claim 4, characterized in that: The wrapping device (23) includes a fixing block (231). An outer wall of the fixing block (231) is fixedly connected to a cylinder (232). One end of the cylinder (232) away from the fixing block (231) is fixedly connected to a limiting strip (233). An outer wall of the top of the limiting strip (233) is fixedly connected to a support pipe (234). A fitting groove (237) is formed in an outer wall of the support pipe (234). An outer wall of the support pipe (234) is fixedly connected to a linkage block (235). An outer wall of the linkage block (235) is fixedly connected to a connecting shaft (236).

7. A flame-retardant power cable processing device according to claim 6, characterized in that: An inner wall of the friction block (2236) is rotatably connected to an outer wall of the connecting shaft (236). An outer wall of the top of the fixing block (231) is fixedly connected to an outer wall of the base (11). An outer wall of the limiting strip (233) is slidably connected to an outer wall of the base (11).

8. A flame-retardant power cable processing device according to claim 1, characterized in that: The cutting device (24) includes a guiding frame (241). An outer wall of the guiding frame (241) is fixedly connected to a tool rest (247). An outer wall of the guiding frame (241) is fixedly connected to a protective plate (242). An outer wall of the protective plate (242) is fixedly connected to a DC motor (243). An output end of the DC motor (243) is fixedly connected to a bidirectional screw (244). A first cutting knife (245) is threadedly connected to an outer wall of the bidirectional screw (244). A second cutting knife (246) is threadedly connected to the outer wall of the bidirectional screw (244).

9. The processing device for a flame-retardant power cable according to claim 8, characterized in that: An outer wall of the guiding frame (241) is fixedly connected to an outer wall of the base (11). An outer wall of the protective plate (242) is fixedly connected to a side wall of the base (11). Inner walls of the tool rest (247) are respectively slidably connected to outer walls of the first cutting knife (245) and the second cutting knife (246).

10. A flame-retardant power cable processing device and processing method, based on the flame-retardant power cable processing device described in any one of claims 1-9, characterized in that, It includes the following steps: Step 1: Select an oxygen-free copper rod, cold draw it through a wire drawing machine, remove the surface oil stain, then right-hand regular stranding is carried out through a multi-strand stranding machine to form a conductor core wire. Subsequently, the stranded conductor is preheated by medium-frequency induction and sprayed with a silane coupling agent; Step 2: Heat the low-smoke and halogen-free polyolefin insulating material to 190 - 210 °C and melt it through a bidirectional screw extruder, extrude it through a right-angle die to form an insulating layer on the surface of the conductor, synchronously cool and shape it quickly through a cold water tank. Subsequently, outside the insulating layer, a flame retardant rubber material containing magnesium hydroxide is evenly coated by a metering pump, and a fiberglass tape is wound; Step 3: Heat the chlorinated polyethylene outer sheath material to 180 - 200 °C by using a single and double screw extruder, extrude and coat it outside the flame retardant layer through an annular die to form an outer sheath, and then enter a 60 °C hot air tunnel for vulcanization treatment; Step 4: After the electrical performance of the cable completed with the outer sheath treatment is detected, it enters the cutting and processing link: the cable will be cut to a fixed length through the cutting device (2). After the length of the cut cable is rechecked, it is wound onto a cable reel, and a polyethylene moisture-proof film is wound around the outer layer and sealed.