A high-efficiency energy-saving optical cable extruding machine set and a continuous production process

Abstract

This invention relates to the field of optical cable manufacturing technology and discloses a high-efficiency and energy-saving optical cable extrusion unit and a continuous production process. The high-efficiency and energy-saving optical cable extrusion unit includes: a base, on the top of which, from left to right, are arranged an unwinding mechanism, a tension monitoring mechanism, a controller, an extrusion mechanism, a cooling mechanism, a diameter measuring mechanism, a guiding mechanism, and a winding mechanism; the tension monitoring mechanism includes: a support frame, a counterweight plate, a tensioning wheel, and a top plate. Two square frames are rotatably mounted between the top plate and the support frame. A vertical plate is fixedly mounted at the bottom of the counterweight plate, and a lifting frame is fixedly mounted at the bottom of the vertical plate. This invention is rationally designed, ensuring zero damage to optical fibers during production through intelligent tension control, significantly saving energy through electromagnetic heating, achieving uniform cooling through rotary spraying, automatically calibrating product accuracy through a real-time diameter measuring system, and enabling continuous operation without stopping the machine through dual-station winding, thus comprehensively improving production efficiency, product quality, and energy utilization.

Description

Technical Field

[0001] This invention relates to the field of optical cable production technology, and in particular to a high-efficiency and energy-saving optical cable extrusion unit and continuous production process. Background Technology

[0002] Current optical cable extrusion production equipment typically includes basic modules such as an unwinding unit, extruder, cooling water tank, diameter gauge, and winding unit. In the extrusion stage, most equipment uses resistance heaters to melt the plastic granules, with heating occurring through external conduction. Cooling is mostly achieved through static water tank immersion or fixed-direction spraying devices. Tension control generally relies on mechanical counterweights or pneumatic brakes for initial adjustment. The winding station is mostly a single-reel design, requiring machine shutdown for reel changes. The diameter measurement system primarily relies on intermittent manual sampling or independent online measurement.

[0003] Existing technologies suffer from several significant drawbacks. Resistance heating results in low thermal efficiency, substantial energy loss, and insufficient heating uniformity, leading to unstable molten plastic states. Static cooling methods are prone to uneven cooling of the optical cable sheath, causing internal stress concentration and affecting the product's mechanical properties. Mechanical tension control systems exhibit slow response, failing to achieve dynamic and precise adjustment, resulting in poor matching between unwinding and rewinding speeds and a tendency for overstretching or slack in the optical fiber. Independent diameter measurement systems are disconnected from the production process, preventing real-time feedback of measurement data to control extrusion parameters, making it difficult to guarantee consistent product quality. The single-station rewinding design leads to frequent production interruptions, severely impacting overall equipment utilization efficiency and continuous production capabilities. Therefore, we propose a high-efficiency, energy-saving optical cable extrusion unit and continuous production process to address these issues. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings mentioned in the background art by proposing a high-efficiency and energy-saving optical cable extrusion unit and a continuous production process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency and energy-saving optical cable extrusion unit includes: a base, and the top of the base is provided with an unwinding mechanism, a tension monitoring mechanism, a controller, an extrusion mechanism, a cooling mechanism, a diameter measuring mechanism, a guiding mechanism and a winding mechanism from left to right;

[0007] The tension monitoring mechanism includes: a support frame, a counterweight plate, a tensioning wheel, and a top plate. Two square frames are rotatably installed between the top plate and the support frame. A vertical plate is fixedly installed at the bottom of the counterweight plate, and a lifting frame is fixedly installed at the bottom of the vertical plate. The tensioning wheel is rotatably installed inside the lifting frame. A first touch switch and a sliding rheostat are fixedly installed on both sides of the counterweight plate, respectively.

[0008] The cooling mechanism includes a cooling water tank, an outer cylinder, and a rotating cylinder. The rotating cylinder is rotatably installed inside the outer cylinder, and multiple oblique nozzles are connected to the inner wall of the rotating cylinder.

[0009] Preferably, the outer cylinder is fixedly installed inside the cooling water tank, and a water pump is fixedly installed on the rear inner wall of the cooling water tank, with the water pump outlet communicating with the outer cylinder.

[0010] A temperature sensor is installed on the bottom inner wall of the cooling water tank, and round holes are opened on both sides of the cooling water tank. The angled nozzles are set at an angle.

[0011] Preferably, a fixed pulley is rotatably installed inside the frame, the vertical plate is slidably connected inside the top plate, a first fixed contact and a first movable contact are provided on one side of the first touch switch, a resistive element and a conductive slider are provided on one side of the sliding rheostat, the first movable contact and the conductive slider are respectively fixedly installed on both sides of the counterweight plate, the first fixed contact is fixedly installed on one side of the first touch switch, and the resistive element is fixedly installed on one side of the sliding rheostat.

[0012] Preferably, the unwinding mechanism includes: an unwinding bracket, an unwinding roller, and an unwinding motor. The unwinding roller is rotatably mounted inside the unwinding bracket, the unwinding motor is fixedly mounted on the rear side of the unwinding bracket, the unwinding roller is fixedly connected to the output shaft of the unwinding motor, and the sliding rheostat is electrically connected to the unwinding motor.

[0013] Preferably, the extrusion mechanism includes: an extrusion cylinder, an extrusion screw, and an extrusion motor. The extrusion motor is fixedly installed on the rear side of the extrusion cylinder, the extrusion screw is rotatably connected inside the extrusion cylinder, and the rear end of the extrusion screw is fixedly connected to the output shaft of the extrusion motor.

[0014] An electromagnetic heating coil is fixedly sleeved on the outer side of the extrusion cylinder, and a heating ring is fixedly installed on the inner wall of the extrusion cylinder.

[0015] The top of the extrusion cylinder is provided with a feeding mechanism, and the front end of the extrusion cylinder is provided with an extrusion head.

[0016] Preferably, the feeding mechanism includes: a feeding hopper, a feeding motor, a rotating shaft, a stirring paddle, and a feeding auger. The feeding hopper is connected to the top of the extrusion cylinder, and a bracket is fixedly installed inside the feeding hopper. The feeding motor is fixedly installed on the top of the bracket. The rotating shaft is fixedly connected to the output shaft of the feeding motor. The stirring paddle and the feeding auger are both fixedly installed on the outside of the rotating shaft.

[0017] The extrusion head includes an outer forming cylinder, an inner forming cylinder, and an isolation cylinder. The inner forming cylinder and the isolation cylinder are both fixedly installed inside the outer forming cylinder, and a feed pipe is connected to the rear side of the outer forming cylinder. The feed pipe is connected to the front end of the extrusion cylinder.

[0018] Preferably, a speed measuring mechanism is provided on one side of the outer cylinder. The speed measuring mechanism includes: a fixed cylinder, a pressure sensor, a pressure ring, and multiple fixed rods. The pressure sensor and the fixed cylinder are both fixedly installed on one side of the outer cylinder. The pressure ring is fixedly connected to the other end of the pressure sensor, and a conical surface is provided on the inner wall of the pressure ring. The fixed rods are fixedly connected to the outside of the rotating cylinder, and a sliding seat is slidably sleeved on the outside of the fixed rods. A hemispherical groove is opened on one side of the sliding seat, and a ball is provided in the hemispherical groove. The ball abuts against the inner side of the conical surface.

[0019] An annular hole is provided on the inner side of the outer cylinder, and a connecting hole adapted to the annular hole is provided on the outer side of the rotating cylinder.

[0020] Preferably, the diameter measuring mechanism includes: a mounting cylinder and multiple sets of measuring mechanisms, with a base frame fixedly mounted at the bottom of the mounting cylinder;

[0021] The measuring mechanism includes a fixed plate, a measuring wheel, a measuring bracket, a pressure plate, a connecting spring, and a second pressure sensor. The second pressure sensor is fixedly installed between the fixed plate and the pressure plate. The connecting spring is disposed between the pressure plate and the measuring bracket. The measuring wheel is rotatably installed inside the measuring bracket. A guide frame is fixedly installed on the outside of the measuring bracket. The guide frame is slidably installed inside the pressure plate and the fixed plate.

[0022] The fixing plate is fixedly installed on the inner wall of the mounting cylinder.

[0023] Preferably, the guiding mechanism includes: a support plate, a first mounting frame and a second mounting frame, the top of the support plate is fixedly mounted on both the first mounting frame and the second mounting frame, two first guide wheels are rotatably mounted in the first mounting frame, and two second guide wheels are rotatably mounted in the second mounting frame.

[0024] Preferably, the winding mechanism includes: a fixed frame, a rotating disk and two winding wheels, a main shaft is rotatably mounted inside the fixed frame, the rotating disk is fixedly sleeved on the outside of the main shaft, and a switching motor is fixedly mounted on the rear side of the fixed frame, and the main shaft is fixedly connected to the output shaft of the switching motor;

[0025] Two rotating seats are rotatably mounted inside the rotary disk. Each rotating seat has integrally formed limit protrusions on both sides, and the take-up wheel is sleeved on the outside of the rotating shaft seat and the limit protrusions. The front end of each rotating seat has an external thread, and a positioning seat is threadedly connected to the front end of the rotating seat. The positioning seat abuts against the front side of the take-up wheel. Two frames are fixedly connected to the rear side of the rotary disk, and a take-up motor is fixedly mounted on the top of each frame. The two rotating seats are respectively fixedly connected to the output shaft of the corresponding take-up motor. A first touch switch is electrically connected to the take-up motor.

[0026] A rotating plate is fixedly sleeved on the outside of the main shaft. Electric push rods are fixedly installed on the top and bottom of the rotating plate. A cutter is fixedly connected to the output end of the electric push rod. Two cutter plates are fixedly connected to the front side of the rotating disk.

[0027] A sliding hole is provided on the front side of the rotating seat. A guide rod is fixedly installed in the sliding hole. A pressure rod is slidably sleeved on the outside of the guide rod. An electromagnet is fixedly connected to the bottom inner wall of the sliding hole. A return spring is fixedly connected to the top inner wall of the sliding hole. The other end of the return spring is fixedly connected to the pressure rod. The electromagnet and the pressure rod are magnetically attracted to each other.

[0028] This invention also provides a high-efficiency and energy-saving continuous production process for optical cables, applied to the aforementioned high-efficiency and energy-saving optical cable extrusion unit, comprising the following steps:

[0029] S1: The optical fiber on the outside of the unwinding roller passes through the fixed pulley, tensioning wheel, isolation ring, circular hole, rotating drum, measuring wheel, and guide wheel, and is placed on the outside of the take-up roller. This energizes the corresponding electromagnet, magnetically attracting the pressure rod. The pressure rod presses and fixes the optical fiber to the outside of the take-up roller. The take-up motor is started, driving the rotating seat and take-up roller to rotate, thereby winding the optical fiber. The unwinding motor is then started to unwind the optical fiber. As the optical fiber becomes taut, it gradually drives the tensioning wheel upward, which in turn drives the lifting frame, vertical plate, and counterweight plate upward, thereby driving the conductive slider upward. The movement of the sliding rheostat reduces the resistance of the unwinding motor, thereby increasing the output speed of the unwinding motor, i.e., the rotational speed of the unwinding roller, until the preset tension is reached. This balances the rotational speeds of the unwinding roller and the take-up roller, thus maintaining the tension of the optical fiber by dynamically controlling the rotational speed of the unwinding roller. When the tension is too high, the counterweight plate moves further upward, causing the first moving contact piece to disengage from the first fixed contact piece. This allows the first touch switch to control the take-up motor to stop working, preventing damage from continued winding of the optical fiber.

[0030] S2: Plastic granules are placed into the feed hopper, and the feed motor is started to drive the rotating shaft, stirring paddle, and feed auger to rotate, thereby agitating and conveying the plastic granules and injecting them into the extrusion cylinder. High-frequency alternating current is passed through the electromagnetic heating coil. According to the law of electromagnetism, a high-intensity, high-speed changing alternating magnetic field is generated around the coil through which the high-frequency current passes. This magnetic field can penetrate air and non-metallic materials. This high-frequency alternating magnetic field diffuses inward, penetrating the metal wall of the extrusion cylinder and ultimately reaching its interior for heating. When the heating ring is cut by the high-speed changing magnetic field, according to Faraday's law of electromagnetism... According to the law of induction, an induced electromotive force is generated inside a metallic conductor. Since the heating ring is a closed conductor, this induced electromotive force drives electrons to form a vortex-shaped ring current, i.e., an eddy current. When the current flows in the conductor, it encounters resistance. The strong eddy current generates a lot of heat on the resistance of the heating ring itself, causing the heating ring to heat up rapidly and heating the plastic particles to a molten state. This starts the extrusion motor, which drives the extrusion screw to rotate and transports the molten plastic into the gap between the outer and inner forming cylinders of the extrusion head, thereby forming a ring-shaped plastic sheath that wraps around the outside of the optical fiber.

[0031] S3: Start the water pump to draw water from the cooling water tank and introduce it into the outer cylinder. Then, the cooling water flows into the rotating cylinder through the annular hole and the connecting hole, and then sprays out from each angled nozzle to achieve uniform cooling of the plastic sheath from all directions. This allows the plastic sheath to cool and form on the outside of the optical fiber. At the same time, because the cooling water is sprayed out at an angle along the angled nozzle, a reaction force is generated and drives the rotating cylinder to rotate, causing multiple angled nozzles to perform circumferential motion, thereby further improving the uniformity of cooling water spray.

[0032] S4. The optical cable moves the measuring bracket by contacting the measuring wheel, compressing the connecting spring. Pressure is monitored by a second pressure sensor, and data from multiple second pressure sensors is integrated to determine the dimensions of the optical cable in various directions. By integrating and comparing the data, the thickness and uniformity of the optical cable are assessed. If the cable is detected to be too thin, the controller increases the output speed of the extrusion motor, thereby increasing the plastic extrusion speed and increasing the thickness of the sheath formed on the outer side of the optical fiber. Simultaneously, the controller increases the power of the water pump, increasing the spray speed of the cooling water and further improving the cooling effect on the optical cable. The increased spray speed of the cooling water also increases the rotation speed of the optical cable. The increased rotational speed of the cylinder accelerates the circular motion of the sliding seat and increases the centrifugal force, thereby increasing the pressure of the ball bearings on the conical surface of the pressure ring. This, in turn, increases the pressure of the pressure ring on the first pressure sensor. The controller adjusts the current flowing into the electromagnetic heating coil based on the pressure value monitored by the first pressure sensor, thus automatically adjusting the heating effect on the plastic granules to ensure that the heating and cooling effects match. Conversely, when the optical cable is detected to be too thick, the controller controls the speed of the extrusion motor to decrease, thereby slowing down the extrusion speed of the plastic sheath. This results in a smaller sheath thickness formed on the outer side of the optical fiber, ensuring that the optical fiber thickness meets the requirements and guaranteeing the quality of the optical cable forming.

[0033] S5. Start the switching motor to drive the rotating disk and main shaft to rotate half a turn clockwise. During this process, the tension monitoring mechanism automatically adjusts the tension to ensure a stable tension. At the same time, when the optical cable wound on the outside of the take-up reel reaches the preset requirements, the controller controls the electric push rod cutter to move and cooperate with the cutting plate to cut the optical cable. At the same time, it controls another set of electromagnets to be energized, magnetically attracting the pressure rod to fix the optical cable on the outside of another take-up reel, and starts another take-up motor to drive another take-up reel to rotate, realizing continuous take-up of the optical cable. At the same time, the positioning seat can be rotated to facilitate the removal of the take-up reel with the wound optical cable for packaging.

[0034] Compared with the prior art, the present invention provides a high-efficiency and energy-saving optical cable extrusion unit and a continuous production process, which has the following beneficial effects:

[0035] (1) Dynamic and precise control of optical fiber tension is achieved through the tension monitoring mechanism. When the optical fiber is taut, the tension wheel rises and drives the sliding rheostat to adjust the resistance value, thereby automatically increasing the speed of the unwinding motor to keep the unwinding and winding speeds balanced. This closed-loop feedback mechanism not only ensures that the optical fiber is always in the best tension state during the production process, avoiding problems such as optical fiber breakage or deformation due to excessive tension, but also significantly reduces the need for manual intervention and improves production efficiency. At the same time, when the tension increases abnormally, the first touch switch will immediately cut off the power supply of the winding motor to form double protection and further ensure the integrity of the optical fiber. This automated tension control system is particularly suitable for high-speed continuous production scenarios and greatly improves the stability and reliability of equipment operation.

[0036] (2) The extrusion mechanism adopts electromagnetic heating technology and unique feeding design to achieve a high-efficiency and energy-saving plasticizing process. The electromagnetic heating coil generates an alternating magnetic field through high-frequency alternating current, which generates eddy current effect inside the heating ring, thereby directly heating from the inside of the metal. This heating method has a thermal efficiency far exceeding that of traditional resistance heating, greatly reducing energy consumption. At the same time, the stirring paddle and feeding auger in the feeding mechanism work together to ensure that the plastic particles are mixed evenly and stably transported to the extrusion cylinder, avoiding material accumulation or bridging. The extrusion head adopts a multi-layer cylinder structure so that the molten plastic can evenly wrap the optical fiber to form a sheath of uniform thickness. This design not only improves energy utilization but also ensures the stability of product quality.

[0037] (3) The cooling mechanism achieves a uniform cooling effect in all directions through a rotating spray device. The water pump sends the cooling water into the outer cylinder and sprays it out at an inclined angle through the inclined nozzle inside the rotating cylinder. The reaction force generated by the spray drives the rotating cylinder to rotate automatically, so that the cooling water can be dynamically sprayed around the optical cable. This rotating spray mode completely solves the problem of uneven cooling that is easy to occur in traditional linear cooling and avoids the internal stress or deformation of the sheath due to local rapid cooling. At the same time, the cooling water and the optical cable maintain full contact, which greatly improves the heat exchange efficiency and shortens the cooling time. The uniform cooling process ensures the structural stability and surface quality of the optical cable sheath, which provides an important guarantee for improving the product yield.

[0038] (4) The diameter measuring mechanism and the control system work together to form a complete quality closed-loop control system. Multiple measuring wheels are distributed along the circumference and the pressure sensor monitors the size changes of the optical cable in all directions in real time. When the sheath thickness deviates from the standard, the controller immediately adjusts the speed of the extrusion motor to change the amount of plastic extrusion and simultaneously adjusts the power of the cooling water pump and the electromagnetic heating power. This real-time feedback adjustment mechanism ensures that the diameter of the optical cable is always kept within the standard range, which greatly improves the consistency of the product. More importantly, the system can automatically compensate for the impact caused by temperature fluctuations or changes in material properties, reduce the generation of waste products, and realize intelligent quality control of the production process.

[0039] (5) The winding mechanism adopts a dual-station design and automatic cutting function to achieve true continuous production. The two winding wheels can be driven by switching motors to perform winding operations alternately. When one roll reaches the predetermined length, the electric push rod drives the cutter to complete the cutting, and the other winding wheel immediately takes over to continue winding. This design completely eliminates the downtime caused by changing the reel in traditional equipment and greatly improves the equipment utilization rate. The pressure rod mechanism can quickly fix and release the optical cable by electromagnet control, making the reel replacement operation simpler and faster. The continuous winding function is particularly suitable for the needs of large-scale industrial production, which significantly improves the overall production efficiency while ensuring product quality. Attached Figure Description

[0040] Figure 1 This is a three-dimensional structural diagram of a high-efficiency and energy-saving optical cable extrusion unit proposed in this invention;

[0041] Figure 2 This is a cross-sectional structural diagram of a high-efficiency and energy-saving optical cable extrusion unit proposed in this invention;

[0042] Figure 3 This is a three-dimensional structural diagram of the unwinding mechanism proposed in this invention;

[0043] Figure 4 This is a three-dimensional structural diagram of the tension monitoring mechanism proposed in this invention;

[0044] Figure 5 This is a cross-sectional structural schematic diagram of the tension monitoring mechanism proposed in this invention;

[0045] Figure 6 for Figure 5 A magnified view of part A in the middle;

[0046] Figure 7 This is a three-dimensional structural diagram of the extrusion mechanism proposed in this invention;

[0047] Figure 8 This is a cross-sectional view of the extrusion mechanism proposed in this invention.

[0048] Figure 9 This is a cross-sectional view of the extrusion head proposed in this invention.

[0049] Figure 10 This is a partial three-dimensional structural diagram of the feeding mechanism proposed in this invention;

[0050] Figure 11 This is a three-dimensional structural diagram of the cooling mechanism proposed in this invention;

[0051] Figure 12 This is a cross-sectional view of the cooling mechanism proposed in this invention.

[0052] Figure 13This is a partial cross-sectional view of the cooling mechanism proposed in this invention.

[0053] Figure 14 for Figure 13 A magnified view of part B in the middle section;

[0054] Figure 15 This is a side cross-sectional view of the cooling mechanism proposed in this invention.

[0055] Figure 16 This is a three-dimensional structural diagram of the diameter measuring mechanism proposed in this invention;

[0056] Figure 17 This is a cross-sectional view of the diameter measuring mechanism proposed in this invention.

[0057] Figure 18 This is a partial three-dimensional structural schematic diagram of the diameter measuring mechanism proposed in this invention;

[0058] Figure 19 This is a three-dimensional structural diagram of the guiding mechanism proposed in this invention;

[0059] Figure 20 This is a three-dimensional structural diagram of the winding mechanism proposed in this invention;

[0060] Figure 21 This is a cross-sectional view of the winding mechanism proposed in this invention.

[0061] Figure 22 for Figure 21 A magnified view of part C in the middle;

[0062] Figure 23 This is a partial three-dimensional structural schematic diagram of the winding mechanism proposed in this invention;

[0063] Figure 24 This is a partial cross-sectional view of the winding mechanism proposed in this invention.

[0064] Figure 25 for Figure 24 A magnified view of part D in the middle.

[0065] In the diagram: 1. Unwinding mechanism; 101. Unwinding bracket; 102. Unwinding roller; 103. Unwinding motor; 2. Tension monitoring mechanism; 201. Support frame; 202. Square frame; 203. Fixed pulley; 204. Tensioning wheel; 205. Lifting frame; 206. Vertical plate; 207. Counterweight plate; 208. First touch switch; 209. First fixed contact piece; 210. First movable contact piece; 211. Sliding rheostat; 212. Resistor; 213. Conductive slider; 3. Extrusion mechanism; 301. Extrusion cylinder; 3 02. Electromagnetic heating coil; 303. Extrusion motor; 304. Extrusion screw; 305. Heating ring; 4. Feeding mechanism; 401. Feed hopper; 402. Bracket; 403. Rotating shaft; 404. Agitator; 405. Feeding auger; 406. Feeding motor; 5. Extrusion head; 501. Outer forming cylinder; 502. Feed pipe; 503. Isolation cylinder; 504. Inner forming cylinder; 6. Cooling mechanism; 601. Cooling water tank; 602. Outer cylinder; 603. Rotating cylinder; 604. Angled nozzle; 605. First Pressure sensor; 606, fixed cylinder; 607, pressure ring; 608, ball bearing; 609, fixed rod; 610, sliding seat; 611, temperature sensor; 612, water pump; 7, diameter measuring mechanism; 701, base frame; 702, mounting cylinder; 703, fixed plate; 704, measuring bracket; 705, measuring wheel; 706, connecting spring; 707, guide frame; 708, pressure plate; 709, second pressure sensor; 8, guide mechanism; 801, support plate; 802, first mounting frame; 803, first guide... 804. Guide wheel; 805. Second mounting frame; 9. Second guide wheel; 9. Rewinding mechanism; 901. Fixing frame; 902. Switching motor; 903. Main shaft; 904. Rotary disk; 905. Frame; 906. Rewinding motor; 907. Rotating seat; 908. Positioning seat; 909. Rewinding wheel; 910. Pressure rod; 911. Guide rod; 912. Electromagnet; 913. Return spring; 914. Electric push rod; 915. Cutter; 916. Cutting plate; 917. Rotating plate; 10. Base; 11. Controller. Detailed Implementation

[0066] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0067] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0068] Reference Figure 1-25 A high-efficiency and energy-saving optical cable extrusion unit includes: a base 10, and the top of the base 10 is provided with an unwinding mechanism 1, a tension monitoring mechanism 2, a controller 11, an extrusion mechanism 3, a cooling mechanism 6, a diameter measuring mechanism 7, a guiding mechanism 8 and a winding mechanism 9 from left to right.

[0069] The tension monitoring mechanism 2 includes: a support frame 201, a counterweight plate 207, a tension wheel 204, and a top plate. Two square frames 202 are rotatably installed between the top plate and the support frame 201. A vertical plate 206 is fixedly installed at the bottom of the counterweight plate 207. A lifting frame 205 is fixedly installed at the bottom of the vertical plate 206. The tension wheel 204 is rotatably installed inside the lifting frame 205. A first touch switch 208 and a sliding rheostat 211 are fixedly installed on both sides of the counterweight plate 207, respectively.

[0070] The cooling mechanism 6 includes a cooling water tank 601, an outer cylinder 602, and a rotating cylinder 603. The rotating cylinder 603 is rotatably installed inside the outer cylinder 602, and multiple oblique nozzles 604 are connected to the inner wall of the rotating cylinder 603.

[0071] In this embodiment, the outer cylinder 602 is fixedly installed inside the cooling water tank 601, and a water pump 612 is fixedly installed on the rear inner wall of the cooling water tank 601. The outlet of the water pump 612 is connected to the outer cylinder 602.

[0072] A temperature sensor 611 is installed on the bottom inner wall of the cooling water tank 601. Circular holes are opened on both sides of the cooling water tank 601, and the angled nozzle 604 is set at an angle.

[0073] In this embodiment, a fixed pulley 203 is rotatably installed inside the frame 202, and the vertical plate 206 is slidably connected to the inside of the top plate. A first fixed contact 209 and a first movable contact 210 are provided on one side of the first touch switch 208, and a resistor 212 and a conductive slider 213 are provided on one side of the sliding rheostat 211. The first movable contact 210 and the conductive slider 213 are respectively fixedly installed on both sides of the counterweight plate 207, the first fixed contact 209 is fixedly installed on one side of the first touch switch 208, and the resistor 212 is fixedly installed on one side of the sliding rheostat 211.

[0074] In this embodiment, the unwinding mechanism 1 includes an unwinding bracket 101, an unwinding roller 102, and an unwinding motor 103. The unwinding roller 102 is rotatably mounted inside the unwinding bracket 101, and the unwinding motor 103 is fixedly mounted on the rear side of the unwinding bracket 101. The unwinding roller 102 is fixedly connected to the output shaft of the unwinding motor 103, and the sliding rheostat 211 is electrically connected to the unwinding motor 103.

[0075] In this embodiment, the extrusion mechanism 3 includes: an extrusion cylinder 301, an extrusion screw 304, and an extrusion motor 303. The extrusion motor 303 is fixedly installed on the rear side of the extrusion cylinder 301, the extrusion screw 304 is rotatably connected inside the extrusion cylinder 301, and the rear end of the extrusion screw 304 is fixedly connected to the output shaft of the extrusion motor 303.

[0076] An electromagnetic heating coil 302 is fixedly sleeved on the outer side of the extrusion cylinder 301, and a heating ring 305 is fixedly installed on the inner wall of the extrusion cylinder 301.

[0077] The top of the extrusion cylinder 301 is provided with a feeding mechanism 4, and the front end of the extrusion cylinder 301 is provided with an extrusion head 5.

[0078] In this embodiment, the feeding mechanism 4 includes: a feeding hopper 401, a feeding motor 406, a rotating shaft 403, a stirring paddle 404, and a feeding auger 405. The feeding hopper 401 is connected to the top of the extrusion cylinder 301, and a bracket 402 is fixedly installed inside the feeding hopper 401. The feeding motor 406 is fixedly installed on the top of the bracket 402. The rotating shaft 403 is fixedly connected to the output shaft of the feeding motor 406. The stirring paddle 404 and the feeding auger 405 are both fixedly installed on the outside of the rotating shaft 403.

[0079] The extrusion head 5 includes an outer forming cylinder 501, an inner forming cylinder 504, and an isolation cylinder 503. The inner forming cylinder 504 and the isolation cylinder 503 are both fixedly installed inside the outer forming cylinder 501, and the rear side of the outer forming cylinder 501 is connected to a feed pipe 502, which is connected to the front end of the extrusion cylinder 301.

[0080] In this embodiment, a speed measuring mechanism is provided on one side of the outer cylinder 602. The speed measuring mechanism includes: a fixed cylinder 606, a pressure sensor, a pressure ring 607, and multiple fixed rods 609. The pressure sensor and the fixed cylinder 606 are both fixedly installed on one side of the outer cylinder 602. The pressure ring 607 is fixedly connected to the other end of the pressure sensor, and a conical surface is provided on the inner wall of the pressure ring 607. The fixed rods 609 are fixedly connected to the outer side of the rotating cylinder 603, and a sliding seat 610 is slidably sleeved on the outer side of the fixed rods 609. A hemispherical groove is opened on one side of the sliding seat 610, and a ball 608 is provided in the hemispherical groove. The ball 608 abuts against the inner side of the conical surface.

[0081] An annular hole is provided on the inner side of the outer cylinder 602, and a connecting hole adapted to the annular hole is provided on the outer side of the rotating cylinder 603.

[0082] In this embodiment, the diameter measuring mechanism 7 includes: a mounting cylinder 702 and multiple sets of measuring mechanisms, and a base frame 701 is fixedly mounted on the bottom of the mounting cylinder 702;

[0083] The measuring mechanism includes a fixed plate 703, a measuring wheel 705, a measuring bracket 704, a pressure plate 708, a connecting spring 706, and a second pressure sensor 709. The second pressure sensor 709 is fixedly installed between the fixed plate 703 and the pressure plate 708. The connecting spring 706 is located between the pressure plate 708 and the measuring bracket 704. The measuring wheel 705 is rotatably installed inside the measuring bracket 704. A guide frame 707 is fixedly installed on the outside of the measuring bracket 704. The guide frame 707 is slidably installed inside the pressure plate 708 and the fixed plate 703.

[0084] The fixing plate 703 is fixedly installed on the inner wall of the mounting cylinder 702.

[0085] In this embodiment, the guiding mechanism 8 includes: a support plate 801, a first mounting frame 802 and a second mounting frame 804. The top of the support plate 801 is fixedly mounted on both the first mounting frame 802 and the second mounting frame 804. Two first guide wheels 803 are rotatably mounted inside the first mounting frame 802, and two second guide wheels 805 are rotatably mounted inside the second mounting frame 804.

[0086] In this embodiment, the winding mechanism 9 includes: a fixed frame 901, a rotating disk 904 and two winding wheels 909. A main shaft 903 is rotatably mounted inside the fixed frame 901. The rotating disk 904 is fixedly sleeved on the outside of the main shaft 903. A switching motor 902 is fixedly mounted on the rear side of the fixed frame 901. The main shaft 903 is fixedly connected to the output shaft of the switching motor 902.

[0087] Two rotating seats 907 are rotatably mounted inside the rotary disk 904. Each rotating seat 907 has integrally formed limit protrusions on both sides, and a take-up roller 909 is sleeved on the outer side of the rotating shaft 403 and the limit protrusions. The front end of the rotating seat 907 has an external thread, and a positioning seat 908 is threadedly connected to the front end of the rotating seat 907. The positioning seat 908 abuts against the front side of the take-up roller 909. Two frames 905 are fixedly connected to the rear side of the rotary disk 904. A take-up motor 906 is fixedly mounted on the top of each frame 905. The two rotating seats 907 are respectively fixedly connected to the output shaft of the corresponding take-up motor 906. The first touch switch 208 is electrically connected to the take-up motor 906.

[0088] A rotating plate 917 is fixedly sleeved on the outside of the spindle 903. Electric push rods 914 are fixedly installed on the top and bottom of the rotating plate 917. A cutter 915 is fixedly connected to the output end of the electric push rod 914. Two cutting plates 916 are fixedly connected to the front side of the rotating disk 904.

[0089] A sliding hole is provided on the front side of the rotating seat 907. A guide rod 911 is fixedly installed in the sliding hole. A pressure rod 910 is slidably sleeved on the outer side of the guide rod 911. An electromagnet 912 is fixedly connected to the bottom inner wall of the sliding hole. A return spring 913 is fixedly connected to the top inner wall of the sliding hole. The other end of the return spring 913 is fixedly connected to the pressure rod 910. The electromagnet 912 and the pressure rod 910 are magnetically attracted to each other.

[0090] This invention also provides a high-efficiency and energy-saving continuous production process for optical cables, applied to the aforementioned high-efficiency and energy-saving optical cable extrusion unit, comprising the following steps:

[0091] S1: The optical fiber on the outside of the unwinding roller 102 passes through the fixed pulley 203, tensioning roller 204, isolation ring, round hole, rotating drum 603, measuring roller 705, and guide roller, and is placed on the outside of the winding roller 909. This energizes the corresponding electromagnet 912, which magnetically attracts the pressure rod 910, pressing and fixing the optical fiber to the outside of the winding roller 909. The winding motor 906 is started, driving the rotating seat 907 and the winding roller 909 to rotate, thereby winding the optical fiber. The unwinding motor 103 is started to unwind the optical fiber. As the optical fiber becomes taut, it gradually drives the tensioning roller 204 to move upward, which in turn drives the lifting frame 205, vertical plate 206, and counterweight plate 207 to move upward, thereby driving... The conductive slider 213 moves upward, thereby reducing the resistance of the sliding rheostat 211 connected to the unwinding motor 103, which increases the output speed of the unwinding motor 103, i.e., the rotational speed of the unwinding roller 102, until the preset tension is reached. This balances the rotational speeds of the unwinding roller 102 and the take-up roller 909, thereby maintaining the tension of the optical fiber by dynamically controlling the rotational speed of the unwinding roller 102. When the tension is too high, the counterweight plate 207 moves further upward, causing the first moving contact 210 to disengage from the first fixed contact 209. This causes the first touch switch 208 to control the take-up motor 906 to stop working, preventing damage from continued winding of the optical fiber.

[0092] S2: Plastic granules are placed into the feed hopper 401, and the feed motor 406 is started to drive the rotating shaft 403, stirring paddle 404, and feed auger 405 to rotate, thereby agitating and conveying the plastic granules and injecting them into the extrusion cylinder 301. High-frequency alternating current is passed into the electromagnetic heating coil 302. According to the law of electromagnetism, a high-intensity, high-speed changing alternating magnetic field is generated around the coil through which the high-frequency current passes. This magnetic field can penetrate air and non-metallic materials. This high-frequency alternating magnetic field diffuses inward, penetrates the metal wall of the extrusion cylinder 301, and finally reaches its interior for heating. When the heating ring 305 is cut by the high-speed changing magnetic field, according to Faraday's law... According to the law of electromagnetic induction, an induced electromotive force is generated inside a metallic conductor. Since the heating ring 305 is a closed conductor, this induced electromotive force will drive electrons to form a vortex-shaped ring current, i.e., an eddy current. When the current flows in the conductor, it will encounter resistance. The strong eddy current will generate a lot of heat on the resistance of the heating ring 305 itself, causing the heating ring 305 to heat up rapidly and heat the plastic particles to a molten state. This will start the extrusion motor 303 to drive the extrusion screw 304 to rotate, and transport the molten plastic to the gap between the outer forming cylinder 501 and the inner forming cylinder 504 of the extrusion head 5, thereby forming a ring-shaped plastic sheath, which is wrapped around the outside of the optical fiber.

[0093] S3: Start the water pump 612 to draw water from the cooling water tank 601 and introduce it into the outer cylinder 602. Then, the cooling water flows into the rotating drum 603 through the annular hole and the connecting hole, and then sprays out from each of the inclined nozzles 604 to achieve uniform cooling of the plastic sheath from all directions, so that the plastic sheath is cooled and formed on the outside of the optical fiber. At the same time, since the cooling water is sprayed out obliquely along the inclined nozzles 604, a reaction force is generated and the rotating drum 603 is rotated, so that the multiple inclined nozzles 604 perform circumferential motion, thereby further improving the uniformity of cooling water spray.

[0094] S4. The optical cable moves the measuring bracket 704 by contacting the measuring wheel 705, compressing the connecting spring 706. The pressure is monitored by the second pressure sensor 709, and the data from multiple second pressure sensors 709 are integrated to determine the dimensions of the optical cable in various directions. By integrating and comparing the data, the thickness and uniformity of the optical cable are determined to meet the requirements. When the optical cable is detected to be too thin, the controller 11 increases the output speed of the extrusion motor 303, thereby increasing the plastic extrusion speed and increasing the thickness of the sheath formed on the outer side of the optical fiber. At the same time, the controller 11 controls the power of the water pump 612 to increase the spraying speed of the cooling water, further improving the cooling effect on the optical cable. Simultaneously, due to the increased spraying speed of the cooling water, the rotating drum 60... The increased rotational speed of the 3 causes the sliding seat 610 to move faster in a circular motion and the centrifugal force it receives to increase. This increases the pressure of the ball bearing 608 on the conical surface of the pressure ring 607, which in turn increases the pressure of the pressure ring 607 on the first pressure sensor 605. The controller 11 adjusts the current flowing into the electromagnetic heating coil 302 based on the pressure value monitored by the first pressure sensor 605, thereby automatically adjusting the heating effect on the plastic particles to ensure that the heating effect matches the cooling effect. Conversely, when the optical cable is detected to be too thick, the controller 11 controls the speed of the extrusion motor 303 to decrease, thereby slowing down the extrusion speed of the plastic sheath. This results in a smaller sheath thickness formed on the outside of the optical fiber, ensuring that the optical fiber thickness meets the requirements and guaranteeing the quality of the optical cable forming.

[0095] S5. Start the switching motor 902 to drive the rotating disk 904 and the main shaft 903 to rotate clockwise half a turn. During this process, the tension monitoring mechanism 2 automatically adjusts the tension to ensure a stable tension. At the same time, when the optical cable wound on the outside of the take-up reel 909 reaches the preset requirements, the controller 11 controls the electric push rod 914 and the cutter 915 to move and cooperate with the cutting plate 916 to cut the optical cable. At the same time, control another set of electromagnets 912 to be energized, magnetically attracting the pressure rod 910 to fix the optical cable on the outside of another take-up reel 909, and start another take-up motor 906 to drive another take-up reel 909 to rotate, so as to realize the continuous winding of the optical cable. At the same time, the positioning seat 908 can be rotated to facilitate the removal of the take-up reel 909 with the wound optical cable for packaging.

[0096] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

Claims

1. A high-efficiency and energy-saving optical cable extrusion unit, characterized in that, include: The base (10) is provided with an unwinding mechanism (1), a tension monitoring mechanism (2), a controller (11), an extrusion mechanism (3), a cooling mechanism (6), a diameter measuring mechanism (7), a guiding mechanism (8), and a winding mechanism (9) from left to right on its top. The tension monitoring mechanism (2) includes: a support frame (201), a counterweight plate (207), a tension wheel (204), and a top plate. Two square frames (202) are rotatably installed between the top plate and the support frame (201). A vertical plate (206) is fixedly installed at the bottom of the counterweight plate (207). A lifting frame (205) is fixedly installed at the bottom of the vertical plate (206). The tension wheel (204) is rotatably installed inside the lifting frame (205). A first touch switch (208) and a sliding rheostat (211) are fixedly installed on both sides of the counterweight plate (207). The cooling mechanism (6) includes: a cooling water tank (601), an outer cylinder (602) and a rotating cylinder (603). The rotating cylinder (603) is rotatably installed inside the outer cylinder (602), and a plurality of oblique nozzles (604) are connected to the inner wall of the rotating cylinder (603). The outer cylinder (602) is fixedly installed inside the cooling water tank (601), and a water pump (612) is fixedly installed on the rear inner wall of the cooling water tank (601), with the outlet of the water pump (612) connected to the outer cylinder (602). A temperature sensor (611) is provided on the bottom inner wall of the cooling water tank (601), and round holes are provided on both sides of the cooling water tank (601). The oblique nozzle (604) is set at an angle. A fixed pulley (203) is rotatably installed inside the frame (202). The vertical plate (206) is slidably connected inside the top plate. A first fixed contact (209) and a first movable contact (210) are provided on one side of the first touch switch (208). A resistor (212) and a conductive slider (213) are provided on one side of the sliding rheostat (211). The first movable contact (210) and the conductive slider (213) are respectively fixedly installed on both sides of the counterweight plate (207). The first fixed contact (209) is fixedly installed on one side of the first touch switch (208). The resistor (212) is fixedly installed on one side of the sliding rheostat (211).

2. The high-efficiency energy-saving optical cable extrusion unit according to claim 1, characterized in that, The unwinding mechanism (1) includes: an unwinding bracket (101), an unwinding roller (102), and an unwinding motor (103). The unwinding roller (102) is rotatably mounted inside the unwinding bracket (101), and the unwinding motor (103) is fixedly mounted on the rear side of the unwinding bracket (101). The unwinding roller (102) is fixedly connected to the output shaft of the unwinding motor (103), and the sliding rheostat (211) is electrically connected to the unwinding motor (103).

3. The high-efficiency energy-saving optical cable extrusion unit according to claim 2, characterized in that, The extrusion mechanism (3) includes: an extrusion cylinder (301), an extrusion screw (304), and an extrusion motor (303). The extrusion motor (303) is fixedly installed on the rear side of the extrusion cylinder (301). The extrusion screw (304) is rotatably connected inside the extrusion cylinder (301), and the rear end of the extrusion screw (304) is fixedly connected to the output shaft of the extrusion motor (303). An electromagnetic heating coil (302) is fixedly sleeved on the outer side of the extrusion cylinder (301), and a heating ring (305) is fixedly installed on the inner wall of the extrusion cylinder (301). The top of the extrusion cylinder (301) is provided with a feeding mechanism (4), and the front end of the extrusion cylinder (301) is provided with an extrusion head (5).

4. The high-efficiency energy-saving optical cable extrusion unit according to claim 3, characterized in that, The feeding mechanism (4) includes: a feeding hopper (401), a feeding motor (406), a rotating shaft (403), a stirring paddle (404), and a feeding auger (405). The feeding hopper (401) is connected to the top of the extrusion cylinder (301), and a bracket (402) is fixedly installed inside the feeding hopper (401). The feeding motor (406) is fixedly installed on the top of the bracket (402). The rotating shaft (403) is fixedly connected to the output shaft of the feeding motor (406). The stirring paddle (404) and the feeding auger (405) are both fixedly installed on the outside of the rotating shaft (403). The extrusion head (5) includes an outer forming cylinder (501), an inner forming cylinder (504), and an isolation cylinder (503). The inner forming cylinder (504) and the isolation cylinder (503) are both fixedly installed inside the outer forming cylinder (501), and the rear side of the outer forming cylinder (501) is connected to a feed pipe (502), which is connected to the front end of the extrusion cylinder (301).

5. The high-efficiency energy-saving optical cable extrusion unit according to claim 4, characterized in that, A speed measuring mechanism is provided on one side of the outer cylinder (602). The speed measuring mechanism includes: a fixed cylinder (606), a pressure sensor, a pressure ring (607), and multiple fixed rods (609). The pressure sensor and the fixed cylinder (606) are both fixedly installed on one side of the outer cylinder (602). The pressure ring (607) is fixedly connected to the other end of the pressure sensor, and a conical surface is provided on the inner wall of the pressure ring (607). The fixed rods (609) are fixedly connected to the outside of the rotating cylinder (603), and a sliding seat (610) is slidably sleeved on the outside of the fixed rods (609). A hemispherical groove is opened on one side of the sliding seat (610), and a ball (608) is provided in the hemispherical groove. The ball (608) abuts against the inner side of the conical surface. The inner side of the outer cylinder (602) is provided with an annular hole, and the outer side of the rotating cylinder (603) is provided with a connecting hole that matches the annular hole.

6. The high-efficiency energy-saving optical cable extrusion unit according to claim 5, characterized in that, The diameter measuring mechanism (7) includes: a mounting cylinder (702) and multiple sets of measuring mechanisms, with a base frame (701) fixedly mounted at the bottom of the mounting cylinder (702); The measuring mechanism includes a fixed plate (703), a measuring wheel (705), a measuring bracket (704), a pressure plate (708), a connecting spring (706), and a second pressure sensor (709). The second pressure sensor (709) is fixedly installed between the fixed plate (703) and the pressure plate (708). The connecting spring (706) is disposed between the pressure plate (708) and the measuring bracket (704). The measuring wheel (705) is rotatably installed inside the measuring bracket (704). A guide frame (707) is fixedly installed on the outside of the measuring bracket (704). The guide frame (707) is slidably installed inside the pressure plate (708) and the fixed plate (703). The fixing plate (703) is fixedly installed on the inner wall of the mounting cylinder (702).

7. The high-efficiency energy-saving optical cable extrusion unit according to claim 6, characterized in that, The guiding mechanism (8) includes: a support plate (801), a first mounting frame (802), and a second mounting frame (804). The top of the support plate (801) is fixedly mounted on both the first mounting frame (802) and the second mounting frame (804). Two first guide wheels (803) are rotatably mounted inside the first mounting frame (802), and two second guide wheels (805) are rotatably mounted inside the second mounting frame (804). The winding mechanism (9) includes: a fixed frame (901), a rotating disk (904) and two winding wheels (909). A main shaft (903) is rotatably installed inside the fixed frame (901). The rotating disk (904) is fixedly sleeved on the outside of the main shaft (903). A switching motor (902) is fixedly installed on the rear side of the fixed frame (901). The main shaft (903) is fixedly connected to the output shaft of the switching motor (902). Two rotating seats (907) are rotatably installed inside the rotating disk (904). Both sides of the rotating seat (907) are integrally formed with limit protrusions. The take-up wheel (909) is sleeved on the outside of the rotating shaft (403) seat and the limit protrusions. The front end of the rotating seat (907) is provided with external threads, and the front end of the rotating seat (907) is threadedly connected to a positioning seat (908). The positioning seat (908) abuts against the front side of the take-up wheel (909). Two frames (905) are fixedly connected to the rear side of the rotating disk (904). A take-up motor (906) is fixedly installed on the top of the frame (905). The two rotating seats (907) are respectively fixedly connected to the output shaft of the corresponding take-up motor (906). The first touch switch (208) is electrically connected to the take-up motor (906). A rotating plate (917) is fixedly sleeved on the outside of the main shaft (903). Electric push rods (914) are fixedly installed on the top and bottom of the rotating plate (917). A cutter (915) is fixedly connected to the output end of the electric push rod (914). Two cutting plates (916) are fixedly connected to the front side of the rotating disk (904). The rotating seat (907) has a sliding hole on its front side. A guide rod (911) is fixedly installed in the sliding hole. A pressure rod (910) is slidably sleeved on the outside of the guide rod (911). An electromagnet (912) is fixedly connected to the bottom inner wall of the sliding hole. A return spring (913) is fixedly connected to the top inner wall of the sliding hole. The other end of the return spring (913) is fixedly connected to the pressure rod (910). The electromagnet (912) and the pressure rod (910) are magnetically attracted to each other.

8. A high-efficiency and energy-saving continuous production process for optical cables, applied to the high-efficiency and energy-saving optical cable extrusion unit as described in claim 7, characterized in that, Includes the following steps: S1: The optical fiber on the outside of the unwinding roller (102) passes through the fixed pulley (203), tensioning roller (204), isolation ring, round hole, rotating drum (603), measuring roller (705), and guide roller, and is placed on the outside of the winding roller (909), so that the corresponding electromagnet (912) is energized, and the pressure rod (910) is magnetically attracted. The pressure rod (910) presses and fixes the optical fiber on the outside of the winding roller (909). The winding motor (906) is started to drive the rotating seat (907) and winding roller (909) to rotate, and the optical fiber is wound up. The unwinding motor (103) is started to unwind the optical fiber. As the optical fiber is tightened, the tensioning roller (204) is gradually driven to move upward, and then... The lifting frame (205), vertical plate (206) and counterweight plate (207) are driven to move upward, which in turn drives the conductive slider (213) to move upward, thereby reducing the resistance of the sliding rheostat (211) connected to the unwinding motor (103), thereby increasing the output speed of the unwinding motor (103) until the preset tension is reached, so that the rotation speed of the unwinding roller (102) and the winding roller (909) are balanced. When the tension is too high, the counterweight plate (207) moves further upward, causing the first moving contact piece (210) to disengage from the first fixed contact piece (209), thereby causing the first touch switch (208) to control the winding motor (906) to stop working. S2: Plastic granules are placed into the feed hopper (401), and the feed motor (406) is started to drive the rotating shaft (403), stirring paddle (404) and feed auger (405) to rotate, thereby realizing the stirring and conveying of plastic granules and injecting them into the extrusion cylinder (301). High-frequency AC current is passed into the electromagnetic heating coil (302) to rapidly heat up the heating ring (305) itself and heat the plastic granules to a molten state. The extrusion motor (303) is started to drive the extrusion screw (304) to rotate, and the molten plastic is conveyed to the gap between the outer forming cylinder (501) and the inner forming cylinder (504) of the extrusion head (5) to form an annular plastic sheath and wrap around the outside of the optical fiber. S3: Start the water pump (612) to draw water from the cooling water tank (601) and introduce it into the outer cylinder (602). Then, the cooling water flows into the rotating drum (603) through the annular hole and the connecting hole, and then sprays out from each of the inclined nozzles (604) to achieve uniform cooling of the plastic sheath in all directions, so that the plastic sheath is cooled and formed on the outside of the optical fiber. At the same time, as the cooling water is sprayed out obliquely along the inclined nozzles (604), a reaction force is generated and the rotating drum (603) is rotated, so that the multiple inclined nozzles (604) perform circumferential motion. S4. The optical cable moves the measuring bracket (704) by contacting the measuring wheel (705), and compresses the connecting spring (706). The pressure is monitored by the second pressure sensor (709), and the dimensions of the optical cable in each direction are determined by integrating multiple second pressure sensors (709). By integrating and comparing the data, it is determined whether the thickness and uniformity of the optical cable meet the requirements. When the optical cable is detected to be too thin, the controller (11) increases the output speed of the extrusion motor (303) to increase the plastic extrusion speed, so that the thickness of the sheath formed on the outside of the optical fiber increases. At the same time, the controller (11) controls the power of the water pump (612) to increase the spraying speed of the cooling water, so that the drum rotates faster. The increased rotation speed of (603) causes the sliding seat (610) to move faster in a circular motion, which in turn increases the pressure of the ball (608) on the conical surface of the pressure ring (607), and further increases the pressure of the pressure ring (607) on the first pressure sensor (605). The controller (11) adjusts the current flowing into the electromagnetic heating coil (302) based on the pressure value monitored by the first pressure sensor (605), and automatically adjusts the heating effect on the plastic particles to ensure that the heating effect matches the cooling effect. Conversely, when the optical cable is detected to be thicker, the controller (11) controls the speed of the extrusion motor (303) to decrease, slowing down the extrusion speed of the plastic sheath, so that the thickness of the sheath formed on the outside of the optical fiber becomes smaller. S5. Start the switching motor (902) to drive the rotating disk (904) and the main shaft (903) to rotate clockwise half a turn. During this process, the tension is automatically adjusted by the tension monitoring mechanism (2) to ensure a stable tension. At the same time, when the optical cable wound on the outside of the winding wheel (909) reaches the preset requirements, the controller (11) controls the electric push rod (914) and the cutter (915) to move and cooperate with the cutting plate (916) to cut the optical cable. At the same time, control another set of electromagnets (912) to be energized, and magnetically attract the pressure rod (910) to fix the optical cable on the outside of another winding wheel (909). Start another winding motor (906) to drive another winding wheel (909) to rotate, so as to realize the continuous winding of the optical cable. At the same time, rotate the positioning seat (908) to remove the winding wheel (909) with the optical cable wound.

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