Extrusion molding device for aerial insulated cable production and processing

Abstract

The invention provides an extrusion molding device for aerial insulated cable production and processing, and belongs to the technical field of aerial insulated cable extrusion molding. The extrusion molding device for aerial insulated cable production and processing comprises a supporting table and an extrusion box, the top of the supporting table is provided with a plastic particle mixing mechanism, the plastic particle mixing mechanism comprises a stock bin and a first fixing box, the stock bin is fixedly installed at the top of the supporting table, the top of the stock bin is provided with an opening, and the first fixing box is fixedly installed on the supporting table. And a bearing plate is fixedly mounted at the top of the stock bin. By arranging the plastic particle mixing mechanism, a first stirring plate and a second stirring plate rotate in opposite directions to stir plastic particles, and after multiple plastic particles are uniformly stirred, passing grooves in a first rotating plate and a second rotating plate coincide with each other, so that the plastic particles fall into a conveying channel; therefore, various plastic particles can be stirred in advance when entering the conveying channel.

Description

Technical Field

[0001] The present invention relates to the technical field of extrusion shaping of overhead insulated cables, and more specifically, to an extrusion shaping device for the production and processing of overhead insulated cables. Background Art

[0002] Overhead insulated cable is a power transmission method between traditional overhead bare conductors and underground cables. Its structure includes a conductor, an insulating layer, and a protective outer skin. It is manufactured using a production process similar to that of cross-linked cables. Extrusion shaping is the core technology for the formation of the plastic insulating layer and sheath in cable manufacturing. After plastic particles are fed through a silo, they are transported by a screw inside a barrel and melted at high temperature in the barrel. The plastic particles are melted into a melt and enter the inside of an extrusion box to wrap the core.

[0003] In the prior art, various plastic particles are added to a silo in a certain ratio, and then stirred and transported under the transportation of a screw, and melted into a melt during this process. However, the melting points of various plastic particles are different, and it is easy for some plastic particles to melt in the initial stage of transportation, resulting in poor mixing effect with other plastic particles. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides an extrusion shaping device for the production and processing of overhead insulated cables that overcomes the above technical problems or at least partially solves the above problems.

[0005] The present invention is implemented as follows: The present invention provides an extrusion shaping device for the production and processing of overhead insulated cables, including a support table and an extrusion box. A plastic particle mixing mechanism is provided on the top of the support table. The plastic particle mixing mechanism includes, A silo, which is fixedly installed on the top of the support table. The top of the silo is open. A bearing plate is fixedly installed on the top of the silo. A material cavity is opened inside the silo. The shape of the lower part of the material cavity is funnel-shaped; A first fixed box, which is fixedly installed at the bottom of the bearing plate. A first rotating rod is rotatably installed on the inner top wall of the first fixed box. A plurality of first stirring plates are fixedly sleeved on the surface of the first rotating rod. A second rotating rod is rotatably installed on the bottom wall of the first fixed box. The second rotating rod is sleeved on the surface of the first rotating rod. A plurality of connecting rods are fixedly installed on the surface of the second rotating rod. A plurality of second stirring plates are fixedly sleeved on the surface of the connecting rod. The shape of the lower part of the second stirring plate is inclined.

[0006] In a preferred embodiment, a first bevel gear is rotatably installed on the inner top wall of the first fixed box, the first rotating rod is fixedly sleeved inside the first bevel gear, a second bevel gear is rotatably installed on the inner bottom wall of the first fixed box, the second rotating rod is fixedly sleeved inside the second bevel gear, and the first rotating rod and the second rotating rod are coaxially arranged.

[0007] In a preferred embodiment, a third bevel gear is rotatably installed on the inner side wall of the first fixed box, both the first bevel gear and the second bevel gear are meshed with the third bevel gear, the first bevel gear and the second bevel gear are respectively located above and below the third bevel gear, a first motor is installed on the top of the bearing plate, and the output end of the first motor is connected to the top of the first rotating rod.

[0008] In a preferred embodiment, a first material cylinder and a second material cylinder are installed on the left side of the silo, a conveying channel is formed between the first material cylinder, the second material cylinder and the silo, the extrusion box is connected to the conveying channel by bolts, a communication cavity is formed between the conveying channel and the material cavity, and the conveying channel and the material cavity are connected through the communication cavity.

[0009] In a preferred embodiment, a first rotating plate is fixedly installed inside the communication cavity, a second rotating plate is rotatably installed inside the communication cavity, the second rotating plate is located above the first rotating plate, through grooves penetrating up and down are formed on both the first rotating plate and the second rotating plate, and a ratchet wheel is fixedly installed inside the second rotating plate.

[0010] In a preferred embodiment, a driving rod is fixedly installed at the bottom of the first rotating rod, a supporting plate is fixedly installed at the bottom of the driving rod, a fixing rod is fixedly installed on the top of the supporting plate, a pawl is rotatably sleeved on the surface of the fixing rod, and a torsion spring is installed between the fixing rod and the pawl.

[0011] In a preferred embodiment, a plastic particle melting mechanism is arranged inside the first material cylinder and the second material cylinder. The plastic particle melting mechanism includes a first screw rod, the first screw rod is rotatably installed inside the conveying channel, a filter screen is installed inside the conveying channel, a second screw rod is rotatably arranged inside the conveying channel, the spiral directions of the blades of the first screw rod and the second screw rod are opposite, a second motor is installed on the top of the supporting table, and the output end of the second motor is connected to the right side of the first screw rod.

[0012] In a preferred embodiment, a second fixed box is fixedly installed inside the second barrel. The first screw rod and the second screw rod both penetrate into the inside of the second fixed box. A fourth bevel gear is fixedly sleeved on the surface of the first screw rod. A spline shaft is fixedly installed on the right side of the second screw rod. A fifth bevel gear is fixedly sleeved on the surface of the spline shaft. A sixth bevel gear is rotatably installed on the inner top wall of the second fixed box. The fourth bevel gear and the fifth bevel gear are both meshed with the sixth bevel gear. The fourth bevel gear and the fifth bevel gear are respectively located on the left and right sides of the sixth bevel gear.

[0013] In a preferred embodiment, a sliding ring is slidably sleeved on the surface of the spline shaft. A sliding rod is slidably installed inside the second fixed box. A driving ring is fixedly installed at the top of the sliding rod. The sliding ring is rotatably sleeved inside the driving ring. The sliding rod is shaped like an L. The other end of the sliding rod is fixedly installed with an extrusion plate. The right side of the extrusion plate is arranged in an arc shape. The extrusion plate and the second screw rod are coaxially arranged. A reset plate is fixedly sleeved on the surface of the sliding rod. A spring is installed between the reset plate and the second fixed box. A plurality of first driving shafts are fixedly installed at both the left and right ends of the sliding ring. A plurality of second driving shafts are fixedly installed on the side of the fourth bevel gear close to the sliding ring. A plurality of third driving shafts are fixedly installed on the side of the fifth bevel gear close to the sliding ring. The number of the first driving shafts, the number of the second driving shafts, and the number of the third driving shafts are the same.

[0014] In a preferred embodiment, a melt cleaning mechanism is arranged at the bottoms of the first barrel and the second barrel. The melt cleaning mechanism includes a first moving plate and a second moving plate. The first moving plate and the second moving plate are respectively fixedly installed at the bottoms of the first barrel and the second barrel. Two fixed plates are fixedly installed on the top of the support table. A bidirectional lead screw is rotatably installed between the two fixed plates. A limiting rod is fixedly installed between the two fixed plates. The first moving plate and the second moving plate are respectively threadedly sleeved at both ends of the bidirectional lead screw. A third motor is installed on the top of the support table. The output end of the third motor is connected to the bidirectional lead screw.

[0015] The extrusion and shaping device for overhead insulated cable production and processing provided by the present invention has the following beneficial effects: 1. By arranging the plastic particle mixing mechanism, the first stirring plate and the second stirring plate rotate in opposite directions to stir the plastic particles. After stirring the various plastic particles evenly, the through grooves on the first rotating plate and the second rotating plate coincide, so that the plastic particles fall into the transportation channel, so that the various plastic particles can be pre-stirred before entering the transportation channel.

[0016] 2. By setting up a plastic particle melting mechanism, the uncompletely melted plastic particles are blocked on the right side of the filter screen. Until they accumulate to a certain extent, the second screw rotates in the same direction as the first screw, so that the accumulated plastic particles move to the right and come into contact and collision with the just-melted melt on the right side. The heat of the just-melted melt is used to heat the accumulated plastic particles for the second time.

[0017] 3. By setting up a melt cleaning mechanism, after the cable processing is completed, the third motor is started to drive the bidirectional lead screw to rotate. With the limiting cooperation of the limiting rod, the first moving plate and the second moving plate drive the first barrel and the second barrel to move in opposite directions respectively, so that the first barrel and the second barrel are separated, which is convenient for the user to clean the melt attached inside the first barrel and the second barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic three-dimensional structure diagram of the whole provided by the embodiment of the present invention; Figure 2 is a schematic left-view structure diagram of the whole provided by the embodiment of the present invention; Figure 3 is a schematic structure diagram of the filter screen provided by the embodiment of the present invention; Figure 4 is a partial cross-sectional view of the silo provided by the embodiment of the present invention; Figure 5 is a partial cross-sectional view of the first fixed box provided by the embodiment of the present invention; Figure 6 is a schematic structure diagram of the ratchet provided by the embodiment of the present invention; Figure 7 is a schematic structure diagram of the first screw and the second screw provided by the embodiment of the present invention; Figure 8 is a partial cross-sectional view of the second fixed box provided by the embodiment of the present invention; Figure 9 is a schematic structure diagram of the slip ring provided by the embodiment of the present invention; Figure 10 is a schematic structure diagram of the third drive shaft provided by the embodiment of the present invention.

[0020] In the figure: 1, support table; 2, extrusion box; 301, storage bin; 302, bearing plate; 303, material cavity; 304, first fixed box; 305, first rotating rod; 306, first stirring plate; 307, second rotating rod; 308, connecting rod; 309, second stirring plate; 310, first bevel gear; 311, second bevel gear; 312, third bevel gear; 313, first motor; 314, first barrel; 315, second barrel; 316, conveying channel; 317, communicating cavity; 318, first rotating plate; 319, second rotating plate; 320, through groove; 321, ratchet wheel; 322, driving rod; 323, support plate; 324, fixed rod; 325, ratchet pawl; 326, torsion spring; 401, first screw rod; 402, filter screen; 403, second screw rod; 404, second motor; 405, second fixed box; 406, fourth bevel gear; 407, spline shaft; 408, fifth bevel gear; 409, sixth bevel gear; 410, slip ring; 411, slide bar; 412, driving ring; 413, extrusion plate; 414, reset plate; 415, spring; 416, first driving shaft; 417, second driving shaft; 418, third driving shaft; 501, first moving plate; 502, second moving plate; 503, fixed plate; 504, bidirectional lead screw; 505, limiting rod; 506, third motor. Specific embodiments

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without any creative effort fall within the scope of protection of the present invention.

[0022] Refer to Figures 1 - 10, the present invention provides a technical solution: an extrusion and shaping device for the production and processing of overhead insulated cables, including a support table 1 and an extrusion box 2. A plastic particle mixing mechanism is arranged on the top of the support table 1. The plastic particle mixing mechanism includes a material bin 301 and a first fixed box 304. The material bin 301 is fixedly installed on the top of the support table 1. The top of the material bin 301 is open. A bearing plate 302 is fixedly installed on the top of the material bin 301. A material cavity 303 is formed inside the material bin 301. The shape of the lower part of the material cavity 303 is funnel-shaped. The first fixed box 304 is fixedly installed on the bottom of the bearing plate 302. A first rotating rod 305 is rotatably installed on the inner top wall of the first fixed box 304. A plurality of first stirring plates 306 are fixedly sleeved on the surface of the first rotating rod 305. A second rotating rod 307 is rotatably installed on the bottom wall of the first fixed box 304. The second rotating rod 307 is sleeved on the surface of the first rotating rod 305. A plurality of connecting rods 308 are fixedly installed on the surface of the second rotating rod 307. A plurality of second stirring plates 309 are fixedly sleeved on the surface of the connecting rod 308. The shape of the lower part of the second stirring plate 309 is inclined. A first material cylinder 314 and a second material cylinder 315 are installed on the left side of the material bin 301. A conveying channel 316 is formed between the first material cylinder 314, the second material cylinder 315 and the material bin 301. The extrusion box 2 and the conveying channel 316 are connected by bolts. A communication cavity 317 is formed between the conveying channel 316 and the material cavity 303. The conveying channel 316 and the material cavity 303 are connected through the communication cavity 317. By setting the plastic particle mixing mechanism, a variety of plastic particles are added into the material bin 301. At this time, due to the blocking of the first rotating plate 318 and the second rotating plate 319, the plastic particles cannot fall into the transportation channel. The first rotating rod 305 and the second rotating rod 307 rotate in opposite directions at the same time, thereby driving the first stirring plate 306 and the second stirring plate 309 to rotate in opposite directions to stir the plastic particles. After stirring a variety of plastic particles evenly, the through slots 320 on the first rotating plate 318 and the second rotating plate 319 coincide, so that the plastic particles fall into the transportation channel and are transported to the left by the first screw rod 401. Thus, a variety of plastic particles can be pre-stirred before entering the transportation channel. The first rotating plate 318 and the second rotating plate 319 rotate in opposite directions, thereby improving the stirring effect and shortening the stirring time; Refer to Figures 1 - 10, a first bevel gear 310 is rotatably installed on the inner top wall of the first fixed box 304. A first rotating rod 305 is fixedly sleeved inside the first bevel gear 310. A second bevel gear 311 is rotatably installed on the inner bottom wall of the first fixed box 304. A second rotating rod 307 is fixedly sleeved inside the second bevel gear 311. The first rotating rod 305 and the second rotating rod 307 are coaxially arranged. A third bevel gear 312 is rotatably installed on the inner side wall of the first fixed box 304. Both the first bevel gear 310 and the second bevel gear 311 are meshed with the third bevel gear 312. The first bevel gear 310 and the second bevel gear 311 are respectively located above and below the third bevel gear 312. A first motor 313 is installed on the top of the bearing plate 302. The output end of the first motor 313 is connected to the top of the first rotating rod 305. By setting the first bevel gear 310, when the user starts the first motor 313, it drives the first rotating rod 305 and the first bevel gear 310 to rotate simultaneously. Through the meshing connection between the first bevel gear 310 and the third bevel gear 312, the third bevel gear 312 rotates. Through the meshing connection between the second bevel gear 311 and the third bevel gear 312, the second bevel gear 311 rotates in a direction opposite to that of the first bevel gear 310, thereby driving the second rotating rod 307 to rotate in a direction opposite to that of the first rotating rod 305; Refer to Figures 1 - 10, a first rotating plate 318 is fixedly installed inside the communication cavity 317, a second rotating plate 319 is rotatably installed inside the communication cavity 317, a sealing sleeve is sleeved on the surface of the second rotating plate 319, and the second rotating plate 319 is sealed with the communication cavity 317 through the sealing sleeve. The second rotating plate 319 is located above the first rotating plate 318. Through grooves 320 penetrating up and down are formed on both the first rotating plate 318 and the second rotating plate 319. A ratchet 321 is fixedly installed inside the second rotating plate 319. A driving rod 322 is fixedly installed at the bottom of the first rotating rod 305. A supporting plate 323 is fixedly installed at the bottom of the driving rod 322. A fixing rod 324 is fixedly installed at the top of the supporting plate 323. A ratchet pawl 325 is rotatably sleeved on the surface of the fixing rod 324. A torsion spring 326 is installed between the fixing rod 324 and the ratchet pawl 325. By providing the ratchet 321 and the ratchet pawl 325, when the first rotating rod 305 rotates, it drives the driving rod 322 and the driving plate to rotate simultaneously. After the ratchet pawl 325 and the ratchet teeth on the ratchet 321 are in extrusion contact, the ratchet pawl 325 rotates around the fixing rod 324 until the ratchet teeth and the ratchet pawl 325 are staggered. Then, through the resilience of the torsion spring 326, the ratchet pawl 325 returns to its original position and continues to be extruded with the next ratchet tooth on the ratchet 321. Repeating like this, at this time, due to the friction force of the sealing sleeve, the second rotating plate 319 cannot rotate. In the initial state, the through groove 320 on the first rotating plate 318 and the through groove 320 on the second rotating plate 319 are staggered, so as to block the plastic particles in the hopper 301. When the plastic particles in the hopper 301 are stirred evenly, the first motor 313 is started in the reverse direction, so that the first rotating rod 305 rotates in the reverse direction. At this time, the ratchet pawl 325 and the ratchet teeth on the ratchet 321 are in contact, thereby driving the ratchet 321 and the second rotating plate 319 to rotate, so that the through groove 320 on the second rotating plate 319 and the through groove 320 on the first rotating plate 318 are gradually aligned, and the plastic particles fall into the interior of the transportation channel from the through groove 320; Refer to Figures 1 - 10, a plastic particle melting mechanism is provided inside the first barrel 314 and the second barrel 315. The plastic particle melting mechanism includes a first screw 401. The first screw 401 is rotatably installed inside the conveying channel 316. A filter screen 402 is installed inside the conveying channel 316. A second screw 403 is rotatably arranged inside the conveying channel 316. The spiral directions of the blades of the first screw 401 and the second screw 403 are opposite. A second motor 404 is installed on the top of the support table 1. The output end of the second motor 404 is connected to the right side of the first screw 401. Heating wires are installed on the side walls of the first barrel 314 and the second barrel 315 to melt the plastic particles. By setting the plastic particle melting mechanism, the user starts the second motor 404 to drive the first screw 401 to rotate, and at the same time makes the second screw 403 rotate in the opposite direction. Since the thread direction of the blades on the second screw 403 is opposite to the thread direction of the blades on the first screw 401, the plastic particles are transported to the right side of the filter screen 402. The melted melt enters the extrusion box 2 after passing through the filtration of the filter screen 402. The cable is extruded and shaped by the extrusion box 2. The incompletely melted plastic particles are blocked on the right side of the filter screen 402. Until a certain degree of accumulation, the second screw 403 rotates in the same direction as the first screw 401, so that the accumulated plastic particles move to the right and contact and collide with the just-melted melt on the right side. The heat of the just-melted melt is used to reheat the accumulated plastic particles, avoiding the problem that due to process problems, after the plastic particles are transported to the extrusion box 2, some plastic particles fail to be completely melted, thereby affecting the quality of the cable insulating sleeve; Refer to Figures 1 - 10, a second fixed box 405 is fixedly installed inside the second barrel 315. Both the first screw rod 401 and the second screw rod 403 penetrate into the inside of the second fixed box 405. A fourth bevel gear 406 is fixedly sleeved on the surface of the first screw rod 401. A spline shaft 407 is fixedly installed on the right side of the second screw rod 403. A fifth bevel gear 408 is fixedly sleeved on the surface of the spline shaft 407. A sixth bevel gear 409 is rotatably installed on the inner top wall of the second fixed box 405. Both the fourth bevel gear 406 and the fifth bevel gear 408 are meshed with the sixth bevel gear 409. The fourth bevel gear 406 and the fifth bevel gear 408 are respectively located on the left and right sides of the sixth bevel gear 409. A sliding ring 410 is slidably sleeved on the surface of the spline shaft 407. A sliding rod 411 is slidably installed inside the second fixed box 405. A driving ring 412 is fixedly installed at the top of the sliding rod 411. The sliding ring 410 is rotatably sleeved inside the driving ring 412. The sliding rod 411 is shaped like an L. The other end of the sliding rod 411 is fixedly installed with an extrusion plate 413. The right side of the extrusion plate 413 is arc-shaped. The extrusion plate 413 is coaxially arranged with the second screw rod 403. A reset plate 414 is fixedly sleeved on the surface of the sliding rod 411. A spring 415 is installed between the reset plate 414 and the second fixed box 405. A plurality of first driving shafts 416 are fixedly installed at both the left and right ends of the sliding ring 410. A plurality of second driving shafts 417 are fixedly installed on the side of the fourth bevel gear 406 close to the sliding ring 410. A plurality of third driving shafts 418 are fixedly installed on the side of the fifth bevel gear 408 close to the sliding ring 410. The number of the first driving shafts 416, the number of the second driving shafts 417, and the number of the third driving shafts 418 are the same. By setting the second fixed box 405, when the first screw rod 401 rotates, it drives the fourth bevel gear 406 to rotate. Through the meshing connection between the fourth bevel gear 406 and the sixth bevel gear 409, the sixth bevel gear 409 rotates. Through the meshing connection between the sixth bevel gear 409 and the fifth bevel gear 408, the fifth bevel gear 408 rotates in the opposite direction. In the initial state, the sliding ring 410 is located on the side close to the fifth bevel gear 408. Through the extrusion and abutment between the first driving shaft 416 and the third driving shaft 418, the fifth bevel gear 408 drives the sliding ring 410 and the spline shaft 407 to rotate in the direction opposite to that of the first screw rod 401. When the plastic particles on the filter screen 402 accumulate, they squeeze the left side of the extrusion plate 413, causing the extrusion plate 413 to gradually move to the right. The driving ring 412 is driven to move to the right through the sliding rod 411, so that the sliding ring 410 gradually moves to the right until the sliding ring 410 moves to the side close to the fourth bevel gear 406. Through the extrusion and abutment between the first driving shaft 416 and the second driving shaft 417, the sliding ring 410 rotates in the same direction as the first screw rod 401, so that the second screw rod 403 reversely transports the accumulated plastic particles; Refer to Figures 1 - 10, a melt cleaning mechanism is provided at the bottoms of the first barrel 314 and the second barrel 315. The melt cleaning mechanism includes a first moving plate 501 and a second moving plate 502. The first moving plate 501 and the second moving plate 502 are respectively fixedly installed at the bottoms of the first barrel 314 and the second barrel 315. Two fixing plates 503 are fixedly installed at the top of the support table 1. A bidirectional lead screw 504 is rotatably installed between the two fixing plates 503. A limiting rod 505 is fixedly installed between the two fixing plates 503. The first moving plate 501 and the second moving plate 502 are respectively thread sleeved at both ends of the bidirectional lead screw 504. The first moving plate 501 and the second moving plate 502 are both slidably sleeved on the surface of the limiting rod 505. A third motor 506 is installed at the top of the support table 1. The output end of the third motor 506 is connected to the bidirectional lead screw 504. By providing the melt cleaning mechanism, after the cable processing is completed, the third motor 506 is started to drive the bidirectional lead screw 504 to rotate. Under the limiting cooperation of the limiting rod 505, the first moving plate 501 and the second moving plate 502 respectively drive the first barrel 314 and the second barrel 315 to move in opposite directions, so that the first barrel 314 and the second barrel 315 are separated, facilitating the user to clean the melt adhering to the inside of the first barrel 314 and the second barrel 315.

[0023] Specifically, the working process or principle of the extrusion and shaping device for overhead insulated cable production and processing is as follows: When in use, various plastic particles are added to the hopper 301. The user starts the first motor 313, driving the first rotating rod 305 and the first bevel gear 310 to rotate simultaneously. Through the meshing connection between the first bevel gear 310 and the third bevel gear 312, the third bevel gear 312 rotates. Through the meshing connection between the second bevel gear 311 and the third bevel gear 312, the second bevel gear 311 rotates in a direction opposite to that of the first bevel gear 310, thereby driving the first stirring plate 306 and the second stirring plate 309 to rotate in opposite directions to stir the plastic particles. After stirring the various plastic particles evenly, the first motor 313 is started in the reverse direction, causing the first rotating rod 305 to rotate in the reverse direction. At this time, the ratchet teeth on the pawl 325 and the ratchet wheel 321 are in contact, thereby driving the ratchet wheel 321 and the second rotating plate 319 to rotate, making the through slots 320 on the second rotating plate 319 and the through slots 320 on the first rotating plate 318 gradually coincide, and the plastic particles fall into the interior of the transport channel through the through slots 320. The user starts the second motor 404, driving the first screw rod 401 to rotate, driving the fourth bevel gear 406 to rotate. Through the meshing connection between the fourth bevel gear 406 and the sixth bevel gear 409, the sixth bevel gear 409 rotates. Through the meshing connection between the sixth bevel gear 409 and the fifth bevel gear 408, the fifth bevel gear 408 rotates in the opposite direction. In the initial state, the slip ring 410 is located on the side close to the fifth bevel gear 408. Through the extrusion and contact between the first drive shaft 416 and the third drive shaft 418, the fifth bevel gear 408 drives the slip ring 410 and the spline shaft 407 to rotate in a direction opposite to that of the first screw rod 401. During this process, the plastic particles are melted into a melt by the heating wire. The plastic particles are transported to the right side of the filter screen 402. After being filtered by the filter screen 402, the melted melt enters the extrusion box 2, and the cable is extruded and shaped by the extrusion box 2. The incompletely melted plastic particles are blocked on the right side of the filter screen 402, squeezing the left side of the extrusion plate 413, causing the extrusion plate 413 to gradually move to the right, driving the drive ring 412 to move to the right through the slide bar 411, thereby causing the slip ring 410 to gradually move to the right until the slip ring 410 moves to the side close to the fourth bevel gear 406. Through the extrusion and contact between the first drive shaft 416 and the second drive shaft 417, the slip ring 410 rotates in the same direction as the first screw rod 401, so that the second screw rod 403 reversely transports the accumulated plastic particles, making them contact and collide with the freshly melted melt on the right side, and using the heat of the freshly melted melt to reheat the accumulated plastic particles. When the cable processing is completed, the third motor 506 is started, driving the bidirectional lead screw 504 to rotate. Under the limiting cooperation of the limiting rod 505, the first moving plate 501 and the second moving plate 502 drive the first material cylinder 314 and the second material cylinder 315 to move in opposite directions respectively.Thus, the first barrel 314 and the second barrel 315 are separated, facilitating the user to clean the melt adhering to the interiors of the first barrel 314 and the second barrel 315.

Claims

1. An extrusion molding device for producing and processing an overhead insulated cable, comprising a support table (1) and an extrusion box (2), characterized in that: A plastic particle mixing mechanism is provided on the top of the support table (1), and the plastic particle mixing mechanism comprises: A material bin (301), the material bin (301) being fixedly mounted on the top of the support table (1), the top of the material bin (301) being open, a bearing plate (302) being fixedly mounted on the top of the material bin (301), a material cavity (303) being provided inside the material bin (301), and a shape of a lower portion of the material cavity (303) being funnel-shaped; A first fixed box (304), the first fixed box (304) is fixedly mounted on the bottom of the carrying plate (302), a first rotating rod (305) is rotatably mounted on the inner top wall of the first fixed box (304), a plurality of first stirring plates (306) are fixedly sleeved on the surface of the first rotating rod (305), a second rotating rod (307) is rotatably mounted on the bottom wall of the first fixed box (304), the second rotating rod (307) is sleeved on the surface of the first rotating rod (305), a plurality of connecting rods (308) are fixedly mounted on the surface of the second rotating rod (307), a second stirring plate (309) is fixedly sleeved on the surface of the connecting rod (308), and the shape of the lower portion of the second stirring plate (309) is set to be inclined.

2. The extrusion molding device for producing and processing overhead insulated cables according to claim 1 is characterized in that: A first bevel gear (310) is rotatably mounted on the inner top wall of the first fixed box (304); the first rotating rod (305) is fixedly sleeved inside the first bevel gear (310); a second bevel gear (311) is rotatably mounted on the inner bottom wall of the first fixed box (304); the second rotating rod (307) is fixedly sleeved inside the second bevel gear (311); and the first rotating rod (305) and the second rotating rod (307) are coaxially arranged.

3. The extrusion molding device for producing and processing overhead insulated cables according to claim 2, characterized in that: A third bevel gear (312) is rotatably mounted on the inner side wall of the first fixed box (304); the first bevel gear (310) and the second bevel gear (311) are both meshed with the third bevel gear (312); the first bevel gear (310) and the second bevel gear (311) are respectively located above and below the third bevel gear (312); a first motor (313) is mounted on the top of the bearing plate (302); an output end of the first motor (313) is connected to the top of the first rotating rod (305).

4. The extrusion molding device for producing and processing overhead insulated cables according to claim 3 is characterized in that: A first material barrel (314) and a second material barrel (315) are installed on the left side of the material bin (301); a conveying channel (316) is provided between the first material barrel (314), the second material barrel (315) and the material bin (301); the extrusion box (2) and the conveying channel (316) are connected by bolts; a connecting cavity (317) is provided between the conveying channel (316) and the material cavity (303); and the conveying channel (316) and the material cavity (303) are connected via the connecting cavity (317).

5. The extrusion molding device for producing and processing overhead insulated cables according to claim 4, characterized in that: A first rotating plate (318) is fixedly installed inside the connecting cavity (317), and a second rotating plate (319) is rotatably installed inside the connecting cavity (317). The second rotating plate (319) is located above the first rotating plate (318). Both the first rotating plate (318) and the second rotating plate (319) are provided with a through slot (320) that passes through the first and second rotating plates (319). A ratchet (321) is fixedly installed inside the second rotating plate (319).

6. The extrusion molding device for producing and processing overhead insulated cables according to claim 5, characterized in that: A driving rod (322) is fixedly mounted on the bottom of the first rotating rod (305), a supporting plate (323) is fixedly mounted on the bottom of the driving rod (322), a fixing rod (324) is fixedly mounted on the top of the supporting plate (323), a ratchet (325) is rotatably sleeved on the surface of the fixing rod (324), and a torsion spring (326) is mounted between the fixing rod (324) and the ratchet (325).

7. The extrusion molding device for producing and processing overhead insulated cables according to claim 6, characterized in that: A plastic particle melting mechanism is arranged inside the first barrel (314) and the second barrel (315), and the plastic particle melting mechanism includes a first screw (401), the first screw (401) is rotatably installed inside the conveying channel (316), a filter screen (402) is installed inside the conveying channel (316), a second screw (403) is rotatably arranged inside the conveying channel (316), the blades of the first screw (401) and the blades of the second screw (403) have opposite spiral directions, and a second motor (404) is installed on the top of the support table (1), and the output end of the second motor (404) is connected to the right side of the first screw (401).

8. The extrusion molding device for producing and processing overhead insulated cables according to claim 7, characterized in that: A second fixed box (405) is fixedly installed inside the second barrel (315), the first screw (401) and the second screw (403) both penetrate into the second fixed box (405), a fourth bevel gear (406) is fixedly installed on the surface of the first screw (401), a spline shaft (407) is fixedly installed on the right side of the second screw (403), a fifth bevel gear (408) is fixedly installed on the surface of the spline shaft (407), and a sixth bevel gear (409) is rotatably installed on the inner top wall of the second fixed box (405), the fourth bevel gear (406) and the fifth bevel gear (408) are both meshed with the sixth bevel gear (409), and the fourth bevel gear (406) and the fifth bevel gear (408) are respectively located on the left and right sides of the sixth bevel gear (409).

9. The extrusion molding device for producing and processing overhead insulated cables according to claim 8, characterized in that: The surface of the spline shaft (407) is slidably sleeved with a slip ring (410); a slide rod (411) is slidably mounted inside the second fixed box (405); a drive ring (412) is fixedly mounted on the top of the slide rod (411); the slip ring (410) is rotatably sleeved inside the drive ring (412); the shape of the slide rod (411) is set to be L-shaped; an extrusion plate (413) is fixedly mounted on the other end of the slide rod (411); the right side of the extrusion plate (413) is set in an arc shape; the extrusion plate (413) and the second screw rod (403) are coaxially arranged; the surface of the slide rod (411) is fixedly sleeved A reset plate (414) is provided, and a spring (415) is installed between the reset plate (414) and the second fixed box (405); a plurality of first drive shafts (416) are fixedly installed at both left and right ends of the slip ring (410); a plurality of second drive shafts (417) are fixedly installed on a side of the fourth bevel gear (406) close to the slip ring (410); a plurality of third drive shafts (418) are fixedly installed on a side of the fifth bevel gear (408) close to the slip ring (410); and the number of the first drive shafts (416), the number of the second drive shafts (417) and the number of the third drive shafts (418) are the same.

10. An extrusion molding device for producing and processing overhead insulated cables according to claim 9, characterized in that: A melt cleaning mechanism is provided at the bottom of the first barrel (314) and the second barrel (315), and the melt cleaning mechanism comprises a first movable plate (501) and a second movable plate (502), the first movable plate (501) and the second movable plate (502) are respectively fixedly mounted on the bottom of the first barrel (314) and the second barrel (315), two fixed plates (503) are fixedly mounted on the top of the support table (1), a bidirectional screw rod (504) is rotatably mounted between the two fixed plates (503), a limit rod (505) is fixedly mounted between the two fixed plates (503), the first movable plate (501) and the second movable plate (502) are respectively threadedly sleeved on the two ends of the bidirectional screw rod (504), and a third motor (506) is installed on the top of the support table (1), and the output end of the third motor (506) is connected to the bidirectional screw rod (504).

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