A wear-resistant aluminum alloy power cable and its manufacturing equipment

Abstract

This invention discloses a wear-resistant aluminum alloy power cable and its manufacturing equipment, relating to the field of cable manufacturing technology. A fixed wheel frame is slidably connected to the top of the centrifugal frame via two centrifugal sliding rods. A clamping wheel is rotatably installed inside the fixed wheel frame, and a clamping spring connects the fixed wheel frame to the top of the centrifugal frame. A gas collecting ring box is installed on the outside of the linkage plate, and a sealing ring is rotatably connected to the inside of the gas collecting ring box. Three gas distribution pipes are evenly spaced inside the sealing ring, and a plasma generator is connected in the middle of the gas distribution pipes. When the assembly frame stops rotating, the clamping springs rebound, and the clamping wheels tightly clamp and fix the steel strip, preventing it from loosening and improving the wrapping quality of the steel strip. Compressed air blows out the plasma generated by the plasma generator, which bombards the surface of the wrapped steel strip, forming a micro-uneven structure, allowing the outer sheath to better adhere to the steel strip armor layer, thus improving the quality of the finished cable.

Description

Technical Field

[0001] This invention relates to the field of cable manufacturing technology, specifically to a wear-resistant aluminum alloy power cable and its manufacturing equipment. Background Technology

[0002] Wear-resistant armored aluminum alloy power cable is a type of power cable that uses aluminum alloy conductors and steel strip or steel wire armor layers. It features high mechanical strength, wear resistance, and strong environmental adaptability. The aluminum alloy power cable is a new type of power cable made of advanced technologies such as special roll forming and stranding production process and annealing treatment. It has high bending performance, creep resistance, and corrosion resistance.

[0003] In the Chinese patent application number CN202411615896.4, entitled "An armoring machine for wire and cable production and its usage method", the patent facilitates the armoring of wires and cables immediately after cleaning by setting a transmission structure component, an internal toothed ring and a second toothed rod, ensuring the cleanliness of wires and cables during armoring and preventing the presence of oil stains, dust or other impurities on the surface of wires and cables, which could cause the steel strip to not adhere firmly to the cable surface.

[0004] In this patent and existing equipment, when the steel strip inside the steel strip placement tray is about to be wrapped, it is impossible to effectively fix the steel strip at the end, resulting in a loose wrapping of the steel strip at the end and poor wrapping quality. In addition, the steel strip is subjected to bending and stretching during the wrapping process. Due to the uneven deformation of various parts of the material, there is internal stress inside the steel strip armor layer. The steel strip with internal stress is in an unstable state and will gradually deform, which can easily cause the steel strip armor layer to loosen or the outer sheath to crack, reducing the quality of cable forming. Summary of the Invention

[0005] This invention provides a wear-resistant aluminum alloy power cable and its manufacturing equipment, which can effectively solve the problems mentioned in the background art of the patent and existing equipment, where the steel strip at the end cannot be effectively fixed after the steel strip inside the steel strip placement tray is about to be wrapped, resulting in a loose wrapping of the steel strip at the end and poor wrapping quality. In addition, the steel strip is subjected to bending and stretching during the wrapping process. Due to the uneven deformation of various parts of the material, there is internal stress inside the steel strip armor layer. The steel strip with internal stress is in an unstable state and will gradually deform, which can easily cause the steel strip armor layer to loosen or the outer sheath to crack, reducing the quality of cable forming.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A wear-resistant aluminum alloy power cable manufacturing equipment includes a support frame, a drive frame, a steel tape wrapping assembly, and a cleaning and adjustment assembly;

[0008] The support frame is provided with steel strip wrapping assemblies on both sides, and the steel strip wrapping assembly includes an assembly frame;

[0009] An assembly frame is connected between the support frame and the drive frame. A connecting plate is connected to one end of the assembly frame. A rotating cylinder is rotatably installed on the top of the support frame. The connecting plate and one end of the rotating cylinder are connected by several linkage plates. A main gear ring is connected to the other end of the rotating cylinder.

[0010] Centrifuge frames are installed on both sides inside the assembly frame. A fixed wheel frame is slidably connected to the top of the centrifuge frame through two centrifuge sliding rods. A clamping wheel is rotatably installed inside the fixed wheel frame. A clamping spring is connected between the fixed wheel frame and the top of the centrifuge frame.

[0011] A U-shaped frame is installed on one side of the support frame. A lifting pipe is connected to the middle of the top of the U-shaped frame. A lifting plate is connected to the open end of the lifting pipe. Both ends of the lifting plate are connected to a tight wheel frame through a tight sliding rod. A fitting wheel is rotatably installed in the middle of the tight wheel frame.

[0012] According to the above technical solution, the clamping spring is located between the two centrifugal slide bars, a protective cylinder is installed in the middle of the centrifugal frame, a centrifugal block is connected in the middle of the protective cylinder, one end of the centrifugal block is connected to one end of the centrifugal rope, and the other end of the centrifugal rope passes through the protective cylinder and the centrifugal frame and is connected to the fixed wheel frame.

[0013] According to the above technical solution, a tight spring is connected between the two ends of the tight wheel frame and the two ends of the lifting plate. The tight spring is located outside the tight slide rod. Fixing holes are opened on both sides of the lifting tube. An adjustment plate is welded to the top of the lifting plate and in the middle of the lifting tube. Multiple adjustment holes are opened at equal intervals on the surface of the adjustment plate. The fixing holes and adjacent adjustment holes are fixedly connected by bolts.

[0014] According to the above technical solution, a gas collecting ring box is installed on the outside of the linkage plate, a sealing ring is rotatably connected to the inside of the gas collecting ring box, three gas distribution pipes are connected at equal intervals on the inside of the sealing ring, a plasma generator is connected in the middle of the gas distribution pipes, the linkage plate and the sealing ring are connected by a connecting plate, a gas pump is installed on one side of the support frame, and the gas outlet end of the gas pump is connected to the bottom end of the gas collecting ring box by a gas supply pipe.

[0015] According to the above technical solution, a cleaning adjustment assembly is provided on both sides of the drive frame, and the cleaning adjustment assembly includes two rotating cylinders;

[0016] The top of the drive frame is rotatably mounted with two rotating cylinders. One end of each rotating cylinder is connected to the other end of the assembly frame via a through-tube. Placement plates are mounted on the top and bottom of the through-tube. Assembly plates are mounted on both sides of the assembly frame. A traction roller is rotatably mounted on the top of the assembly plate. A drive gear is connected to the bottom of the traction roller. Driven gears are rotatably mounted on both sides of the drive gear. The drive gear meshes with two adjacent driven gears. A cross-flow fan is connected to the top of the driven gear. A fan shroud is mounted on the outside of the cross-flow fan. An air inlet is opened on one side of the fan shroud, and an air outlet is opened on the other side. An eccentric pulley is connected to the bottom of the traction roller at the bottom of the assembly plate.

[0017] The other end of the rotating two cylinders is connected to a cleaning toothed ring. The top and bottom of one side of the cleaning toothed ring are connected to a cleaning hanging plate. The two ends of the cleaning hanging plate are slidably connected to a cleaning frame through a cleaning slide rod. An adjusting screw is rotatably connected to the top middle of the cleaning frame. The adjusting screw is connected to the middle of the adjacent cleaning hanging plate through a screw hole. The bottom of the cleaning frame is rotatably installed with two cleaning rollers.

[0018] According to the above technical solution, the surface of the assembly plate is provided with an adjustment port, an adjustment block is slidably connected inside the adjustment port, an adjustment cylinder is installed on the bottom of the assembly plate near the adjustment port, the output end of the adjustment cylinder is connected to the bottom side of the adjustment block, an adjustment roller is rotatably installed on the top of the adjustment block, and two cleaning rollers are installed on the top of the assembly plate between the traction roller and the adjustment roller.

[0019] According to the above technical solution, a side-moving gear is rotatably installed on one side of the support frame on both sides of the main gear ring, and a side-moving gear is also rotatably installed on one side of the drive frame on both sides of the cleaning gear ring. A main bevel gear is connected to the center of the top of the side-moving gear. A secondary bevel gear is rotatably installed on one side of the support frame near the side-moving gear, and a secondary bevel gear is also rotatably installed on one side of the drive frame near the side-moving gear. The main bevel gear meshes with the adjacent secondary bevel gear, and a fan is connected to the center of the top of the secondary bevel gear.

[0020] According to the above technical solution, angle frames are installed on both sides of the assembly frame, and the angle frames are vertically aligned with the adjacent assembly plates. An angle adjustment slide rod is slidably connected to one end of the angle frame, and an angle adjustment frame is connected to one end of the angle adjustment slide rod. Two angle adjustment rollers are rotatably installed inside the angle adjustment frame. A fixing spring is connected between the angle adjustment frame and the angle frame. An embedded block is connected to the other end of the angle adjustment slide rod. An embedded groove is opened inside the angle frame, and the embedded block is embedded inside the embedded groove. Multiple fine adjustment teeth are evenly welded to the outside of the embedded block, and multiple tooth grooves are evenly opened on the outside of the embedded groove. The fine adjustment teeth are embedded inside the tooth grooves.

[0021] A wear-resistant aluminum alloy power cable, manufactured according to the above technical solution, includes a cable body;

[0022] The cable body includes a conductor;

[0023] The conductor is provided in four parts. The outer side of the conductor is wrapped with an insulating shielding layer. The outer side of the insulating shielding layer is wrapped with an inner sheath. The gap between the inner sheath and the insulating shielding layer is filled with filling cotton strips.

[0024] The inner sheath is filled with a rubber strip in the center and in the gap between the four insulating shielding layers. An armor layer is wrapped around the outside of the inner sheath, and an outer sheath is wrapped around the outside of the armor layer.

[0025] According to the above technical solution, the armor layer is composed of steel strip winding, and the inner and outer sheaths are made of PVC material;

[0026] The inner sheath is fed, melted, and plasticized by an extruder and then extruded through an extrusion die to the outside of the filling cotton strip. The outer sheath is fed, melted, and plasticized by an extruder and then extruded through an extrusion die to the outside of the armor layer.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. Equipped with a steel strip wrapping assembly, when the assembly frame rotates at high speed and the steel strip wraps around the inner sheath surface, under the action of centrifugal force, the centrifugal slide bar guides the centrifugal block to pull the clamping wheel away from the steel strip, and the clamping spring is compressed. When the steel strip inside the placement tray is about to be used up, the assembly frame stops rotating, the clamping spring rebounds, and under the action of the spring force, the clamping wheel can tightly clamp and fix the steel strip to prevent the steel strip from loosening, thus improving the wrapping quality of the steel strip. After the steel strip is wrapped, the compressed air output by the air pump flows through the air pipe into the air collecting ring box, and then is ejected through the air distribution pipe. When the compressed air enters the air distribution pipe, the plasma generator starts to discharge. The compressed air can blow out the plasma generated by the plasma generator. The blown plasma bombards the surface of the wrapped steel strip, forming a micro-uneven structure, making the surface of the steel strip rough. When wrapping the outer sheath in subsequent processing, the outer sheath can better fit with the steel strip armor layer, thus improving the quality of the finished cable.

[0029] When the rotating cylinder rotates, the linkage plate and connecting plate drive the plasma generator to rotate. The ejected plasma can fully treat the steel strip armor layer, making the micro-uneven structure evenly distributed. When the residual internal stress causes the steel strip to deform, the deformation is more uniform, the wrapping quality is better, and local excessive deformation is avoided, which can cause the outer sheath to crack. The cable forming quality is better. The fan on one side of the support frame plays a heat dissipation role. When the main toothed ring rotates, it can drive the fan on the same side to rotate. The fan can cool the plasma-treated steel strip armor layer, avoiding the temperature accumulation caused by continuous plasma treatment, thereby ensuring the production quality of the cable.

[0030] Adjusting the corresponding positions of the fixing hole and the adjusting hole can change the distance between the bonding wheel and the armor layer. Under the elastic extension and contraction of the tight spring, the bonding wheel can be tightly attached to the surface of the armor layer with different diameters. The bonding wheel clamps the steel strip, which makes the wrapping tightness better and the wrapping quality higher. The bonding wheel can be flexibly adjusted according to the cable with different diameters, and has a wide range of applications.

[0031] 2. Equipped with a cleaning and adjustment component, the movement of the steel belt during conveying drives the traction roller to rotate. Under the drive of the gear connection, the traction roller drives the cross-flow fan to rotate. When the cross-flow fan rotates, external air enters the fan hood through the air inlet and is ejected from the air outlet. The ejected air can blow away the floating dust on the surface of the steel belt. The eccentric pulley is an eccentric cam. When the traction roller rotates, it drives the eccentric pulley to rotate. The vibration generated by the rotation of the eccentric pulley causes the steel belt to vibrate. When there is floating dust on the surface of the steel belt, the floating dust is more likely to fall off the surface of the steel belt. Combined with the blowing of the air, the floating dust on the surface of the steel belt can be cleaned. In the subsequent steel belt wrapping, the cable production quality is improved. Moreover, the driving force generated by the steel belt itself to drive the cross-flow fan and eccentric pulley to rotate does not require additional power to drive the cross-flow fan, which is more economical and environmentally friendly.

[0032] When the rotation angle of the adjusting roller needs to be changed, the insert block is removed from the insert groove. At this time, the fixing spring is in a compressed state. Then, the insert block is rotated to change the position of the corresponding groove of the fine-tuning tooth. Then, the rebound of the fixing spring is used to change the rotation angle of the adjusting roller. The operation is convenient and quick. The device limits the fine-tuning tooth through the groove. Under the pulling action of the fixing spring, the vibration generated by the device will not cause the fine-tuning tooth to fall out of the groove. The angle of the adjusting roller will not change due to vibration. The wrapping stability of the steel strip is better and the wrapping quality is higher.

[0033] When the steel strip is wrapped, the rotating two rollers also drive the cleaning gear ring to rotate synchronously. The side-moving gear meshes with the cleaning gear ring, and the fan on one side of the drive frame plays a dust removal role, which can clean the surface of the inner sheath that it passes through, blowing away most of the dust on the surface of the inner sheath. At the same time, the rotation of the cleaning gear ring drives the two cleaning rollers to rotate. The two cleaning rollers fit against the outer side of the inner sheath, and the rotation of the two cleaning rollers can adsorb and stick the residual dust, fully ensuring the cleaning quality.

[0034] In summary, the cleaning and conditioning components utilize airflow and adhesive rollers to clean the surfaces of the steel strip and inner sheath. During the steel strip wrapping assembly, dust is prevented from obstructing direct contact between the steel strip and the inner sheath, increasing the mechanical bond between them and further improving the wrapping quality. Furthermore, dust removal prevents direct contact between the plasma and the steel strip surface when using a plasma generator, improving plasma treatment quality. Combined with the steel strip wrapping assembly, the impact of internal stress on the outer sheath is significantly reduced, further enhancing the mechanical bond between the steel strip and the outer sheath. The two components work together to improve the overall cable production quality. Attached Figure Description

[0035] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0036] In the attached diagram:

[0037] Figure 1 This is a schematic diagram of the main cable structure of the present invention;

[0038] Figure 2 This is a schematic diagram of the main structure of the manufacturing equipment of this invention;

[0039] Figure 3 This is a schematic diagram of the steel strip wrapping assembly of the present invention;

[0040] Figure 4 This is a schematic diagram of the installation structure of the gas collecting ring box of the present invention;

[0041] Figure 5 This is a schematic diagram of the installation structure of the centrifuge block of the present invention;

[0042] Figure 6 This is a schematic diagram of the mounting structure of the main gear ring of the present invention;

[0043] Figure 7 This invention comes from Figure 6 Enlarged view of region A;

[0044] Figure 8 This is a schematic diagram of the installation structure of the assembly plate of the present invention;

[0045] Figure 9 This is a schematic diagram of the installation structure of the cross-flow fan of the present invention;

[0046] Figure 10 This is a schematic diagram of the installation structure of the regulating cylinder of the present invention;

[0047] Figure 11 This is a schematic diagram of the installation structure of the angle adjusting roller of the present invention;

[0048] Figure 12 This is a schematic diagram of the installation structure of the cleaning toothed ring of the present invention;

[0049] Figure 13 This invention comes from Figure 12 Enlarged view of region B;

[0050] The diagram labels are as follows: 1. Cable body; 101. Conductor; 102. Insulation and shielding layer; 103. Inner sheath; 104. Filler strip; 105. Armor layer; 106. Outer sheath; 107. Rubber strip;

[0051] 2. Support frame; 3. Drive frame;

[0052] 4. Steel strip wrapping assembly; 401. Assembly frame; 402. Connecting disc; 403. Rotating drum; 404. Linkage plate; 405. Main gear ring; 406. Centrifuge frame; 407. Centrifuge slide bar; 408. Fixed wheel frame; 409. Clamping wheel; 410. Clamping spring; 411. Protective cylinder; 412. Centrifuge block; 413. Centrifuge rope; 415. U-shaped frame; 416. Lifting pipe; 418. Lifting plate; 419. Tight 420. Slide rod; 421. Tightening wheel frame; 422. Tightening spring; 423. Contact wheel; 424. Fixing hole; 425. Adjusting plate; 426. Adjusting hole; 427. Side-moving gear; 428. Main bevel gear; 429. Secondary bevel gear; 430. Fan; 431. Gas collection ring box; 432. Sealing ring; 433. Gas distribution pipe; 434. Plasma generator; 435. Connecting plate; 436. Gas pump; 437. Gas supply pipe;

[0053] 5. Cleaning and adjusting components; 501. Rotating double cylinders; 502. Through pipe; 503. Placement tray; 504. Assembly plate; 505. Traction roller; 506. Drive gear; 507. Driven gear; 508. Cross-flow fan; 509. Fan cover; 510. Air inlet; 511. Air outlet; 512. Adjusting port; 513. Adjusting block; 514. Adjusting roller; 515. Adjusting cylinder; 516. Eccentric 517. Pulley; 518. Cleaning roller 1; 519. Angle frame; 520. Angle adjustment slide bar; 521. Angle adjustment frame; 522. Angle adjustment roller; 523. Inset block; 524. Fine adjustment tooth; 525. Inset groove; 526. Tooth groove; 527. Cleaning toothed ring; 528. Cleaning hanging plate; 529. Cleaning slide bar; 530. Cleaning frame; 531. Adjusting screw; 532. Cleaning roller 2. Detailed Implementation

[0054] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0055] Example 1:

[0056] like Figure 1 As shown, the present invention provides a technical solution for a wear-resistant aluminum alloy power cable, including a cable body 1, which includes a conductor 101, an insulating shielding layer 102, an inner sheath 103, a filling cotton strip 104, an armor layer 105, an outer sheath 106, and a rubber strip 107.

[0057] There are four conductors 101. The outer side of the conductors 101 is wrapped with an insulating shielding layer 102. The outer side of the insulating shielding layer 102 is wrapped with an inner sheath 103. The gap between the inner sheath 103 and the insulating shielding layer 102 is filled with a filling cotton strip 104. The center of the inner sheath 103 and the gap between the four insulating shielding layers 102 is filled with a rubber strip 107. The outer side of the inner sheath 103 is wrapped with an armor layer 105. The outer side of the armor layer 105 is wrapped with an outer sheath 106. The armor layer 105 is composed of steel strips wound around it.

[0058] The armor layer 105 is composed of steel strips wound together, and the inner sheath 103 and the outer sheath 106 are made of PVC material;

[0059] The inner sheath 103 is fed, melted, and plasticized by an extruder and then extruded through an extrusion die to the outside of the filling cotton strip 104. The outer sheath 106 is fed, melted, and plasticized by an extruder and then extruded through an extrusion die to the outside of the armor layer 105.

[0060] Example 2:

[0061] like Figure 2-13 As shown, the present invention also provides a technical solution for manufacturing equipment for wear-resistant aluminum alloy power cables, which further includes a support frame 2, a drive frame 3, a steel strip wrapping assembly 4, and a cleaning and adjustment assembly 5;

[0062] The support frame 2 is equipped with steel strip wrapping assemblies 4 on both sides. The steel strip wrapping assembly 4 includes an assembly frame 401, a connecting plate 402, a rotating cylinder 403, a linkage plate 404, a main gear ring 405, a centrifuge frame 406, a centrifuge slide rod 407, a fixed wheel frame 408, a clamping wheel 409, a clamping spring 410, a protective cylinder 411, a centrifuge block 412, a centrifuge rope 413, a U-shaped frame 415, a lifting pipe 416, a lifting plate 418, a tight slide rod 419, a tight wheel frame 420, a tight spring 421, a contact wheel 422, a fixing hole 423, an adjusting plate 424, an adjusting hole 425, a side-moving gear 426, a main bevel gear 427, a secondary bevel gear 428, a fan 429, a gas collecting ring box 430, a sealing ring 431, a gas distribution pipe 432, a plasma generator 433, a connecting plate 434, a gas pump 435, and a gas delivery pipe 436.

[0063] An assembly frame 401 connects the support frame 2 and the drive frame 3. A connecting plate 402 is connected to one end of the assembly frame 401. A rotating cylinder 403 is rotatably mounted on the top of the support frame 2. The connecting plate 402 and one end of the rotating cylinder 403 are connected by several linkage plates 404. A main gear ring 405 is connected to the other end of the rotating cylinder 403. Centrifuge frames 406 are installed on both sides inside the assembly frame 401. A fixed wheel frame 408 is slidably connected to the top of the centrifuge frame 406 via two centrifuge slide rods 407. A clamping wheel 409 is rotatably mounted inside the fixed wheel frame 408. A clamping spring 410 is connected between the fixed wheel frame 408 and the top of the centrifuge frame 406, and the clamping spring 410 is located between the two centrifuge slide rods 407. A protective cylinder 411 is installed in the middle of the centrifuge frame 406. A centrifuge block 412 is connected in the middle of the protective cylinder 411. One end of the centrifuge block 412 is connected to one end of the centrifuge rope 413. The other end of the centrifuge rope 413 passes through the protective cylinder 411 and the centrifuge frame 406 and is connected to the fixed wheel frame 408. When the assembly frame 401 rotates at high speed and drives the steel belt to wrap around the surface of the inner sheath 103, under the action of centrifugal force, the centrifuge slide rod 407 guides the centrifuge block 412 to pull the clamping wheel 409 away from the steel belt, and the clamping spring 410 is compressed. When the assembly frame 401 stops rotating after the steel belt is wrapped, the clamping spring 410 rebounds. Under the action of the spring force, the clamping wheel 409 can tightly clamp and fix the steel belt to prevent the steel belt from loosening.

[0064] A U-shaped frame 415 is installed on one side of the support frame 2. A lifting pipe 416 is connected to the middle of the top of the U-shaped frame 415. A lifting plate 418 is connected to the open end of the lifting pipe 416. Both ends of the lifting plate 418 are connected to a tight wheel frame 420 via a tight sliding rod 419. A contact wheel 422 is rotatably installed in the middle of the tight wheel frame 420. During cable production, the contact wheel 422 contacts the steel strip armor layer 105 after wrapping to clamp the steel strip. A tight spring 421 is connected between the two ends of the tight wheel frame 420 and the two ends of the lifting plate 418. The tight spring 421 is located outside the tight sliding rod 419. The two ends of the lifting pipe 416... A fixing hole 423 is provided on the side. An adjusting plate 424 is welded to the top of the lifting plate 418 and in the middle of the lifting pipe 416. Multiple adjusting holes 425 are equally spaced on the surface of the adjusting plate 424. The fixing hole 423 and the adjacent adjusting hole 425 are fixedly connected by bolts. Adjusting the corresponding position of the fixing hole 423 and the adjusting hole 425 can change the distance between the bonding wheel 422 and the armor layer 105. Under the elastic extension and contraction of the tight spring 421, the bonding wheel 422 can be tightly bonded to the surface of the armor layer 105 of different diameters, so that the bonding wheel 422 can be flexibly adjusted according to the cable of different diameters.

[0065] A gas collecting ring box 430 is installed on the outside of the linkage plate 404. A sealing ring 431 is rotatably connected to the inside of the gas collecting ring box 430. Three gas distribution pipes 432 are connected at equal intervals inside the sealing ring 431. A plasma generator 433 is connected in the middle of the gas distribution pipes 432. The linkage plate 404 and the sealing ring 431 are connected by a connecting plate 434. An air pump 435 is installed on one side of the support frame 2. The air outlet of the air pump 435 is connected to the bottom of the gas collecting ring box 430 by an air supply pipe 436. The compressed air output by the air pump 435 can flow through the air supply pipe 436 into the gas collecting ring box 430, and then be ejected through the gas distribution pipes 432. When the pressure... When compressed air enters the air distribution pipe 432, the plasma generator 433 starts to discharge. The compressed air can blow out the plasma generated by the plasma generator 433. The blown plasma bombards the surface of the wrapped steel strip. The plasma bombardment will form a micro-uneven structure on the surface of the steel strip, making the surface of the steel strip rough. When the rotating cylinder 403 rotates, the linkage plate 404 and the connecting plate 434 drive the sealing ring 431 to rotate, which in turn drives the plasma generator 433 to rotate. When the semi-finished cable wrapped with the steel strip armor layer 105 passes by, the blown plasma can fully process the steel strip armor layer 105, avoiding the formation of processing dead corners.

[0066] The drive frame 3 is equipped with cleaning adjustment components 5 on both sides. The cleaning adjustment components 5 include a rotating two-cylinder 501, a through pipe 502, a placement plate 503, an assembly plate 504, a traction roller 505, a drive gear 506, a driven gear 507, a cross-flow fan 508, a fan cover 509, an air inlet 510, an air outlet 511, an adjustment port 512, an adjustment block 513, an adjustment roller 514, an adjustment cylinder 515, an eccentric pulley 516, a cleaning roller 517, an angle frame 518, an angle adjustment slide bar 519, an angle adjustment frame 520, an angle adjustment roller 521, a fixing spring 522, an embedded block 523, a fine-tuning tooth 524, an embedded groove 525, a tooth groove 526, a cleaning toothed ring 527, a cleaning hanging plate 528, a cleaning slide bar 529, a cleaning frame 530, an adjustment screw 531, and a cleaning roller 532.

[0067] A rotating drum 501 is rotatably mounted on the top of the drive frame 3. One end of the rotating drum 501 is connected to the other end of the assembly frame 401 through a through pipe 502. Placement trays 503 are mounted on both the top and bottom of the through pipe 502. Assembly plates 504 are mounted on both sides of the assembly frame 401. A traction roller 505 is rotatably mounted on the top of the assembly plate 504. A drive gear 506 is connected to the bottom of the traction roller 505. Driven gears 507 are rotatably mounted on both sides of the drive gear 506. The drive gear 506 meshes with two adjacent driven gears 507. A cross-flow fan 508 is connected to the top of the driven gear 507. A fan shroud 509 is mounted on the outside of the cross-flow fan 508. An air inlet 510 is opened on one side of the fan shroud 509, and an air outlet 511 is opened on the other side. During the steel belt conveying process, the traction roller 505 is in close contact with the steel belt, and the movement of the steel belt... The traction roller 505 will rotate. Under the drive of the gear connection, the traction roller 505 will drive the cross-flow fan 508 to rotate. When the cross-flow fan 508 rotates, the outside air will enter the air hood 509 through the air inlet 510 and be sprayed out from the air outlet 511. The air outlets 511 of the two air hoods 509 face the two sides of the steel strip respectively. The sprayed air can blow away the floating dust on the surface of the steel strip. The bottom end of the traction roller 505 is connected to the bottom of the assembly plate 504 and is connected to the eccentric pulley 516. The eccentric pulley 516 is also an eccentric cam. When the traction roller 505 rotates, it will drive the eccentric pulley 516 to rotate. The vibration generated by the rotation of the eccentric pulley 516 will be transmitted to the steel strip through the traction roller 505, causing the steel strip to vibrate. When there is floating dust on the surface of the steel strip, the floating dust is more likely to fall off the surface of the steel strip. Combined with the blowing of the wind, the floating dust on the surface of the steel strip can be cleaned.

[0068] An adjustment port 512 is provided on the surface of the assembly plate 504. An adjustment block 513 is slidably connected inside the adjustment port 512. An adjustment cylinder 515 is installed on the bottom side of the assembly plate 504 near the adjustment port 512. The output end of the adjustment cylinder 515 is connected to the bottom side of the adjustment block 513. An adjustment roller 514 is rotatably installed on the top of the adjustment block 513. Two cleaning rollers 517 are installed on the top of the assembly plate 504 between the traction roller 505 and the adjustment roller 514. The cleaning rollers 517 are dust-adhesive rollers that can adsorb dust on the surface of the steel belt. During the steel belt conveying process, it will pass between the two cleaning rollers 517. The two cleaning rollers 517 are in contact with the two sides of the steel belt respectively. When the steel belt passes through, the cleaning rollers 517 will adsorb the dust remaining on the surface of the steel belt, making the steel belt cleaner.

[0069] Angle brackets 518 are installed on both sides of the assembly frame 401. The angle brackets 518 are vertically aligned with the adjacent assembly plates 504. Angle brackets 518 are slidably connected to an angle adjustment rod 519 at one end, and an angle adjustment frame 520 is connected to the other end of the angle adjustment rod 519. Two angle adjustment rollers 521 are rotatably installed inside the angle adjustment frame 520. A fixing spring 522 connects the angle adjustment frame 520 and the angle bracket 518. An insert block 523 is connected to the other end of the angle adjustment rod 519. An insert groove 525 is opened inside the angle bracket 518, and the insert block 523 is embedded in the insert groove 525. Multiple insert blocks 523 are evenly welded to the outside of the insert block 523. Each fine-tuning tooth 524 has multiple tooth grooves 526 evenly opened on the outer side of the inner groove 525. The fine-tuning tooth 524 is embedded in the tooth groove 526. The conveyed steel strip passes between two adjacent angle adjustment rollers 521. Changing the angle of the angle adjustment roller 521 can change the wrapping angle of the steel strip. When the rotation angle of the angle adjustment roller 521 needs to be changed, the inner block 523 is taken out from the inner groove 525. At this time, the fixing spring 522 is in a compressed state. Then, the inner block 523 is rotated to change the position of the fine-tuning tooth 524 corresponding to the tooth groove 526. Then, the rebound of the fixing spring 522 is used to realize the change of the rotation angle of the angle adjustment roller 521.

[0070] The other end of the rotating two-cylinder 501 is connected to a cleaning toothed ring 527. The top and bottom of one side of the cleaning toothed ring 527 are connected to a cleaning hanging plate 528. The two ends of the cleaning hanging plate 528 are slidably connected to a cleaning frame 530 through a cleaning slide rod 529. An adjusting screw 531 is rotatably connected to the top middle of the cleaning frame 530. The adjusting screw 531 is connected to the adjacent cleaning hanging plate 528 through a screw hole. A cleaning two-roller 532 is rotatably installed at the bottom of the cleaning frame 530. The cleaning two-roller 532 is also a dust-adhesive roller, which can adsorb dust on the surface of the steel strip.

[0071] Side-moving gears 426 are rotatably mounted on one side of the support frame 2, located on both sides of the main gear ring 405. Side-moving gears 426 are also rotatably mounted on one side of the drive frame 3, located on both sides of the cleaning gear ring 527. A main bevel gear 427 is connected to the center of the top of each side-moving gear 426. A secondary bevel gear 428 is rotatably mounted on one side of the support frame 2, near the side-moving gear 426. A secondary bevel gear 428 is also rotatably mounted on one side of the drive frame 3, near the side-moving gear 426. The main bevel gear 427 meshes with the adjacent secondary bevel gear 428. A fan 429 is connected to the center of the top of 428. Under the action of gear connection, when the main gear ring 405 and the cleaning gear ring 527 rotate, the main gear ring 405 and the cleaning gear ring 527 can drive the fan 429 on the same side to rotate. The fan 429 on the support frame 2 plays a heat dissipation role and can cool down the steel belt armor layer 105 of plasma treatment. The fan 429 on the drive frame 3 plays a dust removal role and can clean the surface of the inner sheath 103 that passes by, blowing away most of the dust on the surface of the inner sheath 103.

[0072] The input terminals of the plasma generator 433, the gas pump 435, and the regulating cylinder 515 are electrically connected to the output of the controller. The input terminal of the controller is electrically connected to the output terminal of the external power supply. The controller can control the corresponding electrical components, which facilitates the automated control of the equipment.

[0073] The working principle and usage process of this invention: During the production of the cable armor layer 105, the semi-finished cable with the inner sheath 103 wrapped on the outside passes through the rotating second drum 501, the through tube 502, the assembly frame 401, the connecting plate 402 and the rotating first drum 403 in sequence. The steel strip passes through the traction roller 505, the cleaning first roller 517, the adjusting roller 514 and the angle adjusting roller 521 in sequence. The external motor drives the rotating first drum 403, the assembly frame 401 and the rotating second drum 501 to rotate synchronously. The movement of the semi-finished cable follows the rotation of the rotating first drum 403, the assembly frame 401 and the rotating second drum 501 to complete the wrapping operation of the steel strip.

[0074] During the steel belt conveying process, the traction roller 505 is in close contact with the steel belt. The movement of the steel belt will drive the traction roller 505 to rotate. Under the drive of the gear connection, the traction roller 505 will drive the cross-flow fan 508 to rotate. When the cross-flow fan 508 rotates, external air will enter the air hood 509 through the air inlet 510 and be ejected from the air outlet 511. The air outlets 511 of the two air hoods 509 face the two sides of the steel belt respectively. The ejected air can blow away the floating dust on the surface of the steel belt. The bottom end of the traction roller 505 is located at the bottom of the assembly plate 504 and is connected to an eccentric pulley 516. The eccentric pulley 516 is also an eccentric cam. When the traction roller 505 rotates, it will drive the eccentric pulley 516 to rotate. The vibration generated by the rotation of the eccentric pulley 516 will be transmitted to the passing steel belt through the traction roller 505. When the steel strip vibrates, the dust on the surface of the steel strip is more easily removed. Combined with the blowing of the wind, the dust on the surface of the steel strip can be cleaned. This improves the quality of cable production during the subsequent wrapping of the steel strip. The driving force generated by the steel strip itself drives the cross-flow fan 508 and the eccentric pulley 516 to rotate, eliminating the need for additional power to drive the cross-flow fan 508, making it more economical and environmentally friendly. Subsequently, the steel strip passes between two cleaning rollers 517. The two cleaning rollers 517 are in contact with both sides of the steel strip. The cleaning rollers 517 will absorb the dust remaining on the surface of the steel strip, making the steel strip cleaner and further improving the quality of cable production. Moreover, after the dust on the surface of the steel strip is blown away by the wind, the cleaning rollers 517 absorb less dust, resulting in a longer service life.

[0075] The adjusting cylinder 515 can drive the adjusting block 513 to move inside the adjusting port 512. By controlling the extension and retraction length of the output end of the adjusting cylinder 515, the position of the adjusting roller 514 can be changed. When the wrapped steel strip is loose, the output end of the adjusting cylinder 515 extends, and the wrapping force of the steel strip increases. When the wrapped steel strip is tight, the output end of the adjusting cylinder 515 shortens, and the wrapping force of the steel strip decreases. By controlling the extension and retraction length of the output end of the adjusting cylinder 515, the wrapping force of the steel strip can be changed, realizing the dynamic adjustment of the wrapping force, so that the steel strip can be evenly wrapped on the surface of the inner sheath 103, improving the production quality of the cable.

[0076] When the rotation angle of the adjusting roller 521 needs to be changed, the inner block 523 is removed from the inner groove 525. At this time, the fixing spring 522 is in a compressed state. Then, the inner block 523 is rotated to change the position of the fine-tuning tooth 524 corresponding to the tooth groove 526. Then, the rebound of the fixing spring 522 is used to change the rotation angle of the adjusting roller 521. The operation is convenient and quick. In the prior art, the rotation angle of the adjusting roller 521 is fixed by bolts. The vibration generated by the equipment can easily cause the bolts to loosen, causing the rotation angle of the adjusting roller 521 to change, which affects the quality of the steel strip wrapping. This equipment limits the fine-tuning tooth 524 by the tooth groove 526. When the equipment is running, under the pulling action of the fixing spring 522, the vibration generated by the equipment will not cause the fine-tuning tooth 524 to disengage from the tooth groove 526. The angle of the adjusting roller 521 will not change due to vibration. The wrapping stability of the steel strip is better and the wrapping quality is higher.

[0077] When the steel strip is wrapped, the rotating two rollers 501 also drive the cleaning gear ring 527 to rotate synchronously. The side-moving gear 426 meshes with the cleaning gear ring 527. Under the action of gear connection, the fan 429 on one side of the drive frame 3 plays a dust removal role, which can clean the surface of the inner sheath 103 that it passes through, blowing away most of the dust on the surface of the inner sheath 103. At the same time, the rotation of the cleaning gear ring 527 drives the cleaning two rollers 532 to rotate. The cleaning two rollers 532 are in contact with the outer side of the inner sheath 103. The rotation of the cleaning two rollers 532 can adsorb and stick the residual dust, fully ensuring the cleaning quality. During the subsequent wrapping of the steel strip, it prevents the dust on the surface of the inner sheath 103 from entering between the steel strip and the inner sheath 103, thus improving the production quality of the cable.

[0078] When the assembly frame 401 rotates at high speed and drives the steel strip to wrap around the surface of the inner sheath 103, under the action of centrifugal force, the centrifugal slide bar 407 guides the centrifugal block 412 to pull the clamping wheel 409 away from the steel strip, and the clamping spring 410 is compressed. When the steel strip inside the placement tray 503 is about to be used up, the rotation of the assembly frame 401 stops, the clamping spring 410 rebounds, and under the action of the spring force, the clamping wheel 409 can tightly clamp and fix the steel strip to prevent the steel strip from loosening and improve the wrapping quality of the steel strip.

[0079] After the steel strip is wrapped, the compressed air output by the air pump 435 flows through the air pipe 436 into the air collection ring box 430, and then is ejected through the air distribution pipe 432. When the compressed air enters the air distribution pipe 432, the plasma generator 433 starts to discharge. The compressed air can blow out the plasma generated by the plasma generator 433. The blown plasma bombards the surface of the wrapped steel strip. The plasma bombardment will form a micro-uneven structure on the surface of the steel strip, making the surface of the steel strip rough. When the outer sheath 106 is wrapped in the subsequent processing, the outer sheath 106 can better fit with the steel strip armor layer 105, improving the quality of the finished cable. When the rotating drum 403 rotates, the linkage plate 404 and the connecting plate 434 drive the sealing ring 431 to rotate, which in turn drives the plasma generator 433 to rotate. When the semi-finished cable wrapped with the steel strip armor layer 105 passes by, the blown plasma can fully process the steel strip armor layer 105, avoiding the generation of processing dead corners.

[0080] During the steel tape wrapping process, the bonding wheel 422 is in contact with the wrapped steel tape armor layer 105 during cable production. The bonding wheel 422 can press the steel tape tightly, making the steel tape wrapping more compact. The plasma generated by the plasma generator 433 bombards the surface of the steel tape, and the micro-concave and convex structure is evenly distributed. When the residual internal stress causes the steel tape to deform, the deformation is more uniform, avoiding local excessive deformation that could cause the outer sheath 106 to crack. Overall, the wrapping quality of the cable armor layer 105 is improved.

[0081] The plasma generator 433 uses low-temperature plasma technology. Continuous plasma treatment will cause the temperature of the steel strip to rise. The fan 429 on one side of the support frame 2 plays a role in heat dissipation. When the main gear ring 405 rotates, it can drive the fan 429 on the same side to rotate. The blowing of the fan 429 can cool down the armor layer 105 of the plasma-treated steel strip, avoid the temperature accumulation caused by continuous plasma treatment, and thus ensure the production quality of the cable.

[0082] The fixing hole 423 and the adjacent adjusting hole 425 are fixedly connected by bolts. Adjusting the corresponding position of the fixing hole 423 and the adjusting hole 425 can change the distance between the bonding wheel 422 and the armor layer 105. Under the elastic extension and contraction of the tight spring 421, the bonding wheel 422 can be tightly bonded to the surface of the armor layer 105 of different diameters, so that the bonding wheel 422 can be flexibly adjusted according to the cable of different diameters, and has a wide range of applications.

[0083] In the cleaning and adjustment component 5, the surface of the steel strip and inner sheath 103 is cleaned by the blowing of the wind and the adsorption and adhesion of the dust-adhesive roller. In the steel strip wrapping component 4, when the steel strip is wrapped, dust is prevented from hindering the direct contact between the steel strip and the surface of the inner sheath 103, which increases the mechanical bonding force between the steel strip and the inner sheath 103 and further improves the quality of steel strip wrapping. In addition, when the plasma generator 433 is used to treat the surface of the steel strip, dust is prevented from hindering the direct contact between the plasma and the surface of the steel strip, which further improves the quality of plasma treatment. In addition, the steel strip wrapping component 4 greatly reduces the impact of internal stress on the outer sheath 106, which further improves the mechanical bonding force between the steel strip and the outer sheath 106. The two components work together to improve the overall production quality of the cable.

[0084] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wear-resistant aluminum alloy power cable manufacturing apparatus characterized by comprising: It includes a support frame (2), a drive frame (3), a steel strip wrapping assembly (4), and a cleaning and adjustment assembly (5); The support frame (2) is provided with steel strip wrapping assemblies (4) on both sides, and the steel strip wrapping assembly (4) includes an assembly frame (401). An assembly frame (401) is connected between the support frame (2) and the drive frame (3). A connecting plate (402) is connected to one end of the assembly frame (401). A rotating cylinder (403) is rotatably installed on the top of the support frame (2). The connecting plate (402) and one end of the rotating cylinder (403) are connected by several linkage plates (404). A main gear ring (405) is connected to the other end of the rotating cylinder (403). Centrifuge racks (406) are installed on both sides inside the assembly frame (401). The top of the centrifuge rack (406) is slidably connected to a fixed wheel frame (408) through two centrifuge slide rods (407). A clamping wheel (409) is rotatably installed inside the fixed wheel frame (408). A clamping spring (410) is connected between the fixed wheel frame (408) and the top of the centrifuge rack (406). A U-shaped frame (415) is installed on one side of the support frame (2). A lifting pipe (416) is connected to the middle of the top of the U-shaped frame (415). A lifting plate (418) is connected to the open end of the lifting pipe (416). A tight wheel frame (420) is connected to both ends of the lifting plate (418) through a tight sliding rod (419). A fitting wheel (422) is rotatably installed in the middle of the tight wheel frame (420). The clamping spring (410) is located between the two centrifugal slide bars (407), and a protective cylinder (411) is installed in the middle of the centrifugal frame (406). A centrifugal block (412) is connected in the middle of the protective cylinder (411). One end of the centrifugal block (412) is connected to one end of the centrifugal rope (413), and the other end of the centrifugal rope (413) passes through the protective cylinder (411) and the centrifugal frame (406) and is connected to the fixed wheel frame (408). A tight spring (421) is connected between the two ends of the tight wheel frame (420) and the two ends of the lifting plate (418). The tight spring (421) is located outside the tight slide rod (419). Fixing holes (423) are provided on both sides of the lifting tube (416). An adjusting plate (424) is welded to the top of the lifting plate (418) and in the middle of the lifting tube (416). Multiple adjusting holes (425) are provided at equal intervals on the surface of the adjusting plate (424). The fixing holes (423) and adjacent adjusting holes (425) are fixedly connected by bolts. A gas collecting ring box (430) is installed on the outside of the linkage plate (404). A sealing ring (431) is rotatably connected to the inside of the gas collecting ring box (430). Three gas distribution pipes (432) are connected at equal intervals on the inside of the sealing ring (431). A plasma generator (433) is connected in the middle of the gas distribution pipes (432). The linkage plate (404) and the sealing ring (431) are connected by a connecting plate (434). A gas pump (435) is installed on one side of the support frame (2). The gas outlet of the gas pump (435) is connected to the bottom of the gas collecting ring box (430) by a gas supply pipe (436).

2. A wear-resistant aluminum alloy power cable manufacturing apparatus according to claim 1, characterized by The drive frame (3) is provided with cleaning adjustment components (5) on both sides, and the cleaning adjustment components (5) include two rotating cylinders (501). The drive frame (3) is rotatably mounted on the top of a rotating cylinder (501). One end of the rotating cylinder (501) is connected to the other end of the assembly frame (401) through a through pipe (502). Placement plates (503) are installed on the top and bottom of the through pipe (502). Assembly plates (504) are installed on both sides of the assembly frame (401). A traction roller (505) is rotatably mounted on the top of the assembly plate (504). A drive gear (506) is connected to the bottom of the traction roller (505). Driven gears (507) are rotatably mounted on both sides. The drive gear (506) meshes with two adjacent driven gears (507). A cross-flow fan (508) is connected to the top of the driven gear (507). A fan shroud (509) is installed on the outside of the cross-flow fan (508). An air inlet (510) is opened on one side of the fan shroud (509), and an air outlet (511) is opened on the other side of the fan shroud (509). An eccentric pulley (516) is connected to the bottom of the traction roller (505) located at the bottom of the assembly plate (504). The other end of the rotating two cylinders (501) is connected to a cleaning toothed ring (527). The top and bottom of one side of the cleaning toothed ring (527) are connected to a cleaning hanging plate (528). The two ends of the cleaning hanging plate (528) are slidably connected to a cleaning frame (530) through a cleaning slide rod (529). An adjusting screw (531) is rotatably connected to the middle of the top of the cleaning frame (530). The adjusting screw (531) is connected to the adjacent cleaning hanging plate (528) through a screw hole. The bottom of the cleaning frame (530) is rotatably installed with two cleaning rollers (532).

3. The wear-resistant aluminum alloy power cable manufacturing equipment according to claim 2, characterized in that, An adjustment port (512) is provided on the surface of the assembly plate (504). An adjustment block (513) is slidably connected inside the adjustment port (512). An adjustment cylinder (515) is installed on the bottom side of the assembly plate (504) near the adjustment port (512). The output end of the adjustment cylinder (515) is connected to the bottom side of the adjustment block (513). An adjustment roller (514) is rotatably installed on the top of the adjustment block (513). Two cleaning rollers (517) are installed on the top of the assembly plate (504) between the traction roller (505) and the adjustment roller (514).

4. The wear-resistant aluminum alloy power cable manufacturing equipment according to claim 3, characterized in that, The support frame (2) has a side drive gear (426) rotatably mounted on one side of the main gear ring (405) and the drive frame (3) has a side drive gear (426) rotatably mounted on one side of the cleaning gear ring (527). The top center of the side drive gear (426) is connected to the main bevel gear (427). The support frame (2) has a secondary bevel gear (428) rotatably mounted on one side near the side drive gear (426). The drive frame (3) also has a secondary bevel gear (428) rotatably mounted on one side near the side drive gear (426). The main bevel gear (427) meshes with the adjacent secondary bevel gear (428). The top center of the secondary bevel gear (428) is connected to the fan (429).

5. The wear-resistant aluminum alloy power cable manufacturing equipment according to claim 4, characterized in that, Angle brackets (518) are installed on both sides of the assembly frame (401). The angle brackets (518) are vertically aligned with the adjacent assembly plates (504). An angle adjustment rod (519) is slidably connected to one end of the angle bracket (518). An angle adjustment frame (520) is connected to one end of the angle adjustment rod (519). Two angle adjustment rollers (521) are rotatably installed inside the angle adjustment frame (520). A fixing spring is connected between the angle adjustment frame (520) and the angle bracket (518). Spring (522), the other end of the angle adjustment slide (519) is connected to an embedded block (523), the angle bracket (518) has an embedded groove (525) inside, the embedded block (523) is embedded in the embedded groove (525), a plurality of fine adjustment teeth (524) are evenly welded on the outside of the embedded block (523), a plurality of tooth grooves (526) are evenly opened on the outside of the embedded groove (525), and the fine adjustment teeth (524) are embedded in the tooth grooves (526).

6. A wear-resistant aluminum alloy power cable, characterized in that, The cable manufactured by the wear-resistant aluminum alloy power cable manufacturing equipment according to claim 5 includes a cable body (1). The cable body (1) includes a conductor (101); Four conductors (101) are provided. An insulating shielding layer (102) is wrapped around the outside of the conductors (101). An inner sheath (103) is wrapped around the outside of the insulating shielding layer (102). A filling cotton strip (104) is filled in the gap between the inner sheath (103) and the insulating shielding layer (102). The inner sheath (103) is filled with a rubber strip (107) in the gap between the four insulating shielding layers (102). The inner sheath (103) is wrapped with an armor layer (105) on the outside. The armor layer (105) is wrapped with an outer sheath (106) on the outside.

7. The wear-resistant aluminum alloy power cable according to claim 6, characterized in that, The armor layer (105) is composed of steel strips wound together, and the inner sheath (103) and outer sheath (106) are made of PVC material; The inner sheath (103) is fed, melted and plasticized by an extruder and then extruded through an extrusion die to the outside of the filling cotton strip (104). The outer sheath (106) is fed, melted and plasticized by an extruder and then extruded through an extrusion die to the outside of the armor layer (105).

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