CN116811180B

CN116811180B - Cable extrusion device

Info

Publication number: CN116811180B
Application number: CN202311107455.9A
Authority: CN
Inventors: 郑向前; 杨宝生; 孙红光; 池亚南
Original assignee: Shandong Jinmao Cable Co ltd
Current assignee: Shandong Jinmao Cable Co ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2023-12-29
Anticipated expiration: 2043-08-31
Also published as: CN116811180A

Abstract

The utility model relates to the technical field of plastic extrusion molding equipment, in particular to a cable extrusion device; the stirring device can realize stirring of the molten plastic materials in the machine head, so that the molten plastic materials are uniformly dispersed at the outer wall of the cable, the temperature balance of the molten plastic materials at the periphery of the cable is ensured, and the quality of an insulating layer of the outer wall of the extrusion molding cable is improved; including leading-in section of thick bamboo, rotatory die head mechanism and spiral feed machine, leading-in section of thick bamboo is equipped with the material chamber near port department, be equipped with the inlet pipe with the material chamber intercommunication on the leading-in section of thick bamboo, spiral feed machine's output and inlet pipe intercommunication, rotatory die head mechanism is including rotating the die head body of installing in material chamber department, for the internal toper chamber and the horizontal chamber of being equipped with of die head, the miniport department and the horizontal chamber transition of toper chamber link up, intermittent type average subassembly includes a plurality of pushing plates, a plurality of extension springs and driving ring, be equipped with on the die head body along the radial setting of die head body and with a plurality of slides of toper chamber intercommunication.

Description

Cable extrusion device

Technical Field

The utility model relates to the technical field of plastic extrusion molding equipment, in particular to a cable extrusion device.

Background

As is known, cables are generally rope-like conductive elements formed by twisting several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a centre, the whole cable being covered with a highly insulating plastic coating. The cable extrusion device is processing equipment for extrusion molding of insulating plastic layers on the outer wall of a cable.

For example, the Chinese patent utility model discloses a silicone rubber cable extruder head (publication No. CN 216127701U), which belongs to the technical field of cable processing equipment and specifically comprises a shell, a rubber feeding assembly, a wire feeding assembly, a die and a connecting and combining cap; a first cavity in the horizontal direction and a second cavity in the vertical direction are formed in the shell; the first cavity penetrates through the front end face and the rear end face of the shell; one end of the second cavity is communicated with the first cavity, and the other end of the second cavity is arranged on the side wall of the shell; the glue inlet assembly is connected to the side wall of the shell through a glue inlet flange; the wire inlet assembly is connected to the rear end face of the shell; the die is connected to the front end face of the shell; the connecting cap is connected to the front end face of the die; the die sleeve seat of the die is clamped between the connecting cap and the shell; a shell refrigerant flow passage is arranged in the side wall of the shell; a coolant flow passage of the glue inlet flange is arranged in the side wall of the glue inlet flange; the side wall of the die sleeve seat is internally provided with a die sleeve seat refrigerant flow passage.

However, when the present inventors embodied this device, the following drawbacks were found to exist: during extrusion molding operation of the plastic layer on the outer wall of the cable; the machine head with lateral feeding is adopted, molten plastic materials enter the machine head to coat the outer wall of the cable, but the molten plastic materials are poor in distribution uniformity and are easy to cause different thickness of a plastic insulating layer on the outer wall of the formed cable; for this reason, some equipment adopts a plurality of feed inlets to disperse feeding, however, there is difference such as molten plastics material temperature etc. that different feed inlets were located to get into in the aircraft nose, and obvious interface is easily produced after each molten plastics material is gathered each other, makes the cable plastic insulation layer of shaping in interface department intensity reduction, influences the cable quality after the follow-up shaping.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the cable extrusion device for realizing stirring of the molten plastic material in the machine head, so that the molten plastic material is uniformly dispersed at the outer wall of the cable, the temperature balance of the molten plastic material at the periphery of the cable is ensured, and the quality of the insulation layer of the outer wall of the extrusion-molded cable is improved.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the cable extrusion device comprises a guide cylinder, a rotary die head mechanism and a spiral feeder, wherein a feed pipe communicated with the feed pipe is arranged on the guide cylinder, the output end of the spiral feeder is communicated with the feed pipe, the rotary die head mechanism comprises a die head body rotatably arranged at the feed cavity, a driving assembly for providing power for the rotation of the die head body and an intermittent material homogenizing assembly, a conical cavity and a horizontal cavity are arranged in the die head body, a small port of the conical cavity is in transitional connection with the horizontal cavity, the intermittent material homogenizing assembly comprises a plurality of pushing plates, a plurality of tension springs and a driving ring, a plurality of slide ways which are radially arranged along the die head body and are communicated with the conical cavity are arranged on the die head body, the pushing plates are slidably arranged in the slide ways, one end, close to the central axis of the die head body, of the pushing plates is parallel to the inner wall of the conical cavity, the driving ring is embedded and arranged on the guide cylinder, a plurality of semicircular protruding parts and semicircular protruding parts are uniformly distributed at the inner walls of the driving ring, and one end, far away from the central axis of the semicircular protruding parts of the die head body, far away from the semicircular protruding parts are contacted with one end of the semicircular protruding parts of the driving ring; further, one end of the tension spring is connected with the die head body, and the other end of the tension spring is connected with the pushing plate; when the tension spring is in a fully contracted state in a natural state, one end of the pushing plate, which is close to the central axis of the die head body, is flush with the inner wall of the conical cavity, and the tension spring can promote the pushing plate to reset automatically; the spiral feeder is preferably an extruder with a heating effect, is of the prior art, and is not further described herein, and molten plastic materials are fed into the material cavity through the spiral feeder; the driving assembly comprises a first driving motor and a driving belt, and the output end of the first driving motor is in transmission connection with the die head body through the driving belt.

Preferably, a guide straight core barrel which is collinear with the central axis of the guide barrel is arranged in the guide barrel, and a preheating component is arranged between the guide straight core barrel and the guide barrel; the preheating component is preferably a spiral heating wire; other equivalent elements with heating effect can be used for the preheating assembly.

Preferably, a feed amount adjusting assembly is arranged in the feed pipe, and comprises a core plug which is slidably arranged in the feed pipe and a driving cylinder which supplies power for the movement of the core plug; the guide-in cylinder is provided with an expanding cavity near the feeding pipe, the outer diameter of the core plug is smaller than the inner diameter of the expanding cavity, and the core plug is positioned in the expanding cavity; further, the inner diameter of the two ports of the expanding cavity is the same as the outer diameter of the plug.

Preferably, the feeding pipe and the spiral feeder are two groups, the output end of the feeding pipe extends into the feeding cavity along the radial direction of the guiding cylinder, the guiding cylinder is provided with a cleaning opening which is collinear with the central axis of the feeding pipe and is communicated with the feeding cavity, and the cleaning opening is detachably provided with a sealing plug.

Preferably, the output end of the driving cylinder is sleeved with a sleeve, and a heating assembly is arranged between the sleeve and the output end of the driving cylinder; further, the heating component can adopt a spiral heating wire; other equivalent parts with heating effect can be adopted for the preheating component; the central axis of the output end of the packing sleeve and the driving cylinder is collinear with the central axis of the feeding pipe.

Preferably, the cooling device further comprises a cooling water tank and a plurality of water spray pipes, wherein a semicircular bracket which is collinear with the central axis of the guide-in cylinder is arranged in the cooling water tank, and the output end of each water spray pipe is positioned above the middle part of the cooling water tank.

Preferably, the device also comprises a traction mechanism, wherein the traction mechanism comprises a frame body and two belt conveyors arranged on the frame body.

Preferably, the two belt conveyors can be installed on the frame in a vertically sliding mode, and a screw rod in threaded transmission connection with the belt conveyors is installed on the frame in a rotating mode.

Preferably, the belt conveyor further comprises a second driving motor arranged on the frame body and a driving shaft arranged at the output end of the second driving motor, steering gear boxes are arranged on the belt conveyor, and the driving shafts are in transmission connection with the input ends of the steering gear boxes; furthermore, the input end of the steering gear box is provided with a shaft sleeve, the shaft sleeve is arranged at the driving shaft in a vertically sliding way, the driving shaft is in transmission connection with the shaft sleeve, the driving shaft is preferably a polygonal shaft, and the inner wall of the shaft sleeve is matched with the outer wall of the driving shaft.

(III) beneficial effects

Compared with the prior art, the utility model provides a cable extrusion device, which has the following beneficial effects: this cable extrusion device provides molten form plastics material to the intracavity through spiral feeder, molten form plastics material gets into the internal toper chamber of die head, drive assembly drives the die head body and rotates, when pushing away flitch and semi-annular bellying contact, the one end that the flitch is close to the die head body stretches into to the toper intracavity and contacts with molten form plastics material, it follows the die head body and rotates simultaneously to drive molten form plastics material, when pushing away flitch tip and semi-annular indent contact, pushing away flitch and close to toper chamber one end and toper intracavity wall parallel and level, break away from the effect to molten form the material, so relapse, realize the cloth adjustment along cable circumference of molten form plastics material around the cable, make the mutual misce bene contact between the molten form material, then under the effect of horizontal chamber, molten form plastics material is evenly coated in cable outer wall department after being extruded, realize stirring the molten form plastics material in the aircraft nose, make molten form plastics material evenly disperse cable outer wall department all around department, guarantee that molten form plastics material temperature is balanced, in order to improve extrusion shaping cable outer wall insulating layer quality.

Drawings

FIG. 1 is a schematic view of an isometric view of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the structure of FIG. 2 at A-A in accordance with the present utility model;

FIG. 4 is a schematic view of the cross-sectional structure of the utility model at B-B in FIG. 3;

FIG. 5 is a schematic view of the central cut-away plan view of the rotary die mechanism of the present utility model;

FIG. 6 is a schematic view of the cross-sectional structure of FIG. 5 at C-C in accordance with the present utility model;

FIG. 7 is a schematic view of the cross-sectional structure of the utility model at D-D in FIG. 6;

the reference numerals in the drawings: 1. an introduction tube; 2. a spiral feeder; 3. a material cavity; 4. a feed pipe; 5. a die body; 6. a drive assembly; 7. a pushing plate; 8. a tension spring; 9. a drive ring; 10. semi-annular protruding parts; 11. a semi-annular concave portion; 12. guiding the straight core barrel; 13. a preheating assembly; 14. a core plug; 15. a drive cylinder; 16. an expanding cavity; 17. cleaning the mouth; 18. sealing the plug; 19. wrapping the sleeve; 20. a heating assembly; 21. a cooling water tank; 22. a water spray pipe; 23. a semicircular bracket; 24. a frame body; 25. a belt conveyor; 26. a screw; 27. a second driving motor; 28. a drive shaft; 29. a steering gear box; 30. a first driving motor; 31. the sealing disc.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the cable extrusion device of the utility model comprises a guide cylinder 1, a rotary die head mechanism and a spiral feeder 2, wherein a material cavity 3 is arranged near a port of the guide cylinder 1, a feed pipe 4 communicated with the material cavity 3 is arranged on the guide cylinder 1, an output end of the spiral feeder 2 is communicated with the feed pipe 4, the rotary die head mechanism comprises a die head body 5 rotatably arranged at the material cavity 3, a driving component 6 for providing power for the rotation of the die head body 5 and an intermittent material homogenizing component, a conical cavity and a horizontal cavity are arranged in the die head body 5, a small port of the conical cavity is in transitional connection with the horizontal cavity, the intermittent material homogenizing component comprises a plurality of pushing plates 7, a plurality of tension springs 8 and a driving ring 9, a plurality of sliding ways which are radially arranged along the die head body 5 and communicated with the conical cavity are arranged on the die head body 5, the sliding ways are slidably arranged in the sliding ways, one end of a central axis of the pushing plates 7 is parallel to the inner wall of the conical cavity, the driving ring 9 is embedded and arranged on the guide cylinder 1, a plurality of semi-annular protruding parts 10 are arranged on the inner wall of the driving ring 9 and are arranged at the inner wall of the driving ring 9 and are far away from one end 11 of the semi-annular protruding parts 11 far away from the inner ends of the semi-annular protruding parts 11 of the semi-annular protruding parts 7; further, one end of the tension spring 8 is connected with the die head body 5, and the other end of the tension spring 8 is connected with the pushing plate 7; when the tension spring 8 is in a fully contracted state in a natural state, one end of the pushing plate 7, which is close to the central axis of the die head body 5, is flush with the inner wall of the conical cavity, and the tension spring 8 can promote the pushing plate 7 to reset automatically; the screw feeder 2 is preferably an extruder with heating effect, the screw feeder 2 is of the prior art, and the molten plastic material is fed into the material cavity 3 through the screw feeder 2 without further description; the driving assembly 6 comprises a first driving motor 30 and a driving belt, and the output end of the first driving motor 30 is in transmission connection with the die head body 5 through the driving belt.

Specifically, a guide straight core barrel 12 which is collinear with the central axis of the guide barrel 1 is arranged in the guide barrel 1, and a preheating component 13 is arranged between the guide straight core barrel 12 and the guide barrel 1; the preheating component 13 is preferably a spiral heating wire; other equivalent components with heating effect can be adopted for the preheating component 13; furthermore, a blocking disc 31 which is matched with the inner wall of the material cavity 3 is arranged at one end of the guide straight core barrel 12 extending into the guide barrel 1 so as to prevent excessive molten plastic materials in the material cavity 3 from entering the guide barrel 1; the cable is stretched into the guide straight core barrel 12 to be in a horizontal straightening state, and meanwhile, the guide straight core barrel 12 can reduce the gap between the outer wall of the cable and the guide straight core barrel 12 so as to reduce excessive entry of molten materials into the guide straight core barrel 12, and part of molten plastic materials entering the guide straight core barrel 12 can move out of the guide straight core barrel 12 along with the movement of the cable; the outer wall of the cable passing through the guide straight core barrel 12 can be heated through the preheating component 13, so that overlarge fluctuation caused by overlarge temperature of the outer wall of the cable to the stability in the material cavity 3 is avoided, and the molten plastic material in the material cavity 3 and in contact with the outer wall of the cable is ensured to be in a fluid state.

Specifically, a feed amount adjusting assembly is installed in the feed pipe 4, and comprises a core plug 14 slidably installed in the feed pipe 4 and a driving cylinder 15 for powering the movement of the core plug 14; the leading-in cylinder 1 is provided with an expanding cavity 16 near the feeding pipe 4, the outer diameter of the core plug 14 is smaller than the inner diameter of the expanding cavity 16, and the core plug 14 is positioned in the expanding cavity 16; further, the inner diameter of the two ports of the expanding cavity 16 is the same as the outer diameter of the core plug 14; the output end of the driving cylinder 15 is connected with the core plug 14; the position of the core plug 14 in the expanding cavity 16 is adjusted by starting the driving cylinder 15, so that the interval between the core plug 14 and the expanding cavity 16 is adjusted, the quantity of molten plastic materials entering the material cavity 3 is adaptively adjusted, and once a fault occurs, the molten materials can be directly cut off by the core plug 14 and enter the material cavity 3; the feeding amount adjusting component can adjust the feeding amount of the molten plastic material and simultaneously adaptively adjust the rotating speed of the spiral feeding machine 2; in another embodiment, an access hole is installed at the feeding pipe 4, a sealing cover is detachably installed at the access hole, when the material in the spiral feeding machine 2 is not discharged due to sudden stopping, molten plastic material can be discharged outwards by opening the access hole, and the phenomenon that the solidified plastic material is filled in the spiral feeding machine 2 to lock a spiral shaft in the spiral feeding machine 2 is avoided.

Specifically, the feeding pipe 4 and the spiral feeder 2 are two groups, the output end of the feeding pipe 4 extends into the material cavity 3 along the radial direction of the guiding cylinder 1, the guiding cylinder 1 is provided with a cleaning opening 17 which is collinear with the central axis of the feeding pipe 4 and is communicated with the material cavity 3, and a sealing plug 18 is detachably arranged at the cleaning opening 17; the two spiral feeding machines 2 are used for feeding into the material cavity 3 in a dispersing manner, so that the feeding uniformity is improved, meanwhile, the two spiral feeding machines 2 are mutually standby, the two spiral feeding machines 2 in a conventional state are operated in a half-load manner, and when one spiral feeding machine 2 fails, the other spiral feeding machine 2 is used for feeding in a full-load manner, and the two spiral feeding machines are mutually standby, so that the continuous extrusion molding operation of the plastic insulating layer on the outer wall of the cable is ensured; when the whole device is required to be shut down for maintenance, the sealing plug 18 can be removed to clean the residual plastic materials in the material cavity 3 and the diameter-expanding cavity 16, so that the convenience for cleaning the residual materials in the material cavity 3 and the diameter-expanding cavity 16 is improved.

Specifically, the output end of the driving cylinder 15 is sleeved with a sleeve pipe 19, and a heating component 20 is arranged between the sleeve pipe 19 and the output end of the driving cylinder 15; further, the heating assembly 20 may employ a spiral heating wire; other equivalent components with heating effect can be adopted for the preheating component 13; the central axis of the output ends of the wrapping pipe 19 and the driving cylinder 15 is collinear with the central axis of the feeding pipe 4; once a stopping accident occurs, the heating assembly 20 can be started to heat the residual plastic materials at the feeding pipe 4, so that the feeding pipe 4 and the material cavity 3 are prevented from being blocked by plastic material solidification, the plastic materials in the feeding pipe 4 and the material cavity 3 are ensured to be in a molten or semi-molten state, and the plastic materials are prevented from being solidified.

Specifically, the cooling water tank 21 and a plurality of water spray pipes 22 are also included, a semicircular bracket 23 which is collinear with the central axis of the guide-in cylinder 1 is arranged in the cooling water tank 21, and the output end of the water spray pipe 22 is positioned above the middle part of the cooling water tank 21; the plastic insulating layer after extrusion molding is solidified and molded after cooling by water sprayed out from the water spraying pipe 22, and the semicircular bracket 23 can support the bottom of the cable, so that the levelness of the cable is ensured, the deformation of the incompletely solidified plastic insulating layer caused by bending the cable is avoided, and the quality of the molded cable is further ensured.

Specifically, the device also comprises a traction mechanism, wherein the traction mechanism comprises a frame 24 and two belt conveyors 25 arranged on the frame 24; further, the arc-shaped part matched with the outer walls of the cables is arranged at the conveyor belt of the belt conveyor 25, the cables are positioned between the two belt conveyors 25, the cables are pulled and conveyed, the contact area between the cables and the cables can be increased through the belt conveyor 25, and the phenomenon that the cables and the plastic insulating layers are separated due to the fact that the outer walls of the cables are uniformly distributed and stressed is avoided.

Specifically, two belt conveyors 25 are slidably mounted on a frame 24 up and down, and a screw 26 in threaded driving connection with the belt conveyors 25 is rotatably mounted on the frame 24; through adjusting screw 26, can adjust the interval between two belt conveyors 25, can adjust the pressure between cable and the belt conveyor 25 simultaneously, when guaranteeing the normal traction operation of cable, avoid causing too big pressure to the cable and lead to the plastic insulation layer to produce deformation.

Specifically, the belt conveyor 25 further comprises a second driving motor 27 mounted on the frame 24 and a driving shaft 28 mounted at the output end of the second driving motor 27, a steering gear box 29 is mounted on the belt conveyor 25, and the driving shaft 28 is in transmission connection with the input end of the steering gear box 29; further, the input end of the steering gear box 29 is provided with a shaft sleeve, the shaft sleeve is arranged at the driving shaft 28 in a vertically sliding way, the driving shaft 28 is in transmission connection with the shaft sleeve, the driving shaft 28 is preferably a polygonal shaft, and the inner wall of the shaft sleeve is matched with the outer wall of the driving shaft 28; the two belt conveyors 25 are synchronously driven by the second driving motor 27 and the driving shaft 28, so that the speed difference between the two belt conveyors 25 is avoided, and the stress balance in the cable conveying process is ensured.

When the cable is used, the cable passes through the guide straight core barrel 12, the end part of the cable enters between the two belt conveyors 25, the two belt conveyors 25 horizontally pull the cable, molten plastic materials are supplied into the material cavity 3 through the spiral feeder 2, the molten plastic materials enter into the conical cavity in the die head body 5, the driving assembly 6 drives the die head body 5 to rotate, when the pushing plate 7 contacts with the semi-annular bulge 10, one end of the pushing plate 7, close to the die head body 5, stretches into the conical cavity and contacts with the molten plastic materials, the molten plastic materials are driven to synchronously rotate along with the die head body 5, when the end part of the pushing plate 7 contacts with the semi-annular concave part 11, one end of the pushing plate 7, close to the conical cavity, is flush with the inner wall of the conical cavity, the effect on the molten plastic materials is eliminated, so that the cloth adjustment of the molten plastic materials around the cable is realized, the molten plastic materials are uniformly mixed and contacted with each other, then the molten plastic materials are uniformly coated on the outer wall of the cable after being extruded under the effect of the horizontal cavity, the molded plastic insulating layer is cooled through water sprayed from the position of the pipe 22, and the molded insulating layer is cooled, and the molded insulating layer is coated, and molded.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. The cable extrusion device is characterized by comprising a guide cylinder (1), a rotary die head mechanism and a spiral feeder (2), wherein a material cavity (3) is arranged at a position, close to a port, of the guide cylinder (1), a feeding pipe (4) communicated with the material cavity (3) is arranged on the guide cylinder (1), and the output end of the spiral feeder (2) is communicated with the feeding pipe (4);

the rotary die head mechanism comprises a die head body (5) rotatably arranged at the material cavity (3), a driving assembly (6) for providing power for the rotation of the die head body (5) and an intermittent material homogenizing assembly, wherein a conical cavity and a horizontal cavity are arranged in the die head body (5), a small port of the conical cavity is in transitional connection with the horizontal cavity, the intermittent material homogenizing assembly comprises a plurality of material pushing plates (7), a plurality of tension springs (8) and a driving ring (9), a plurality of slide ways which are radially arranged along the die head body (5) and are communicated with the conical cavity are arranged on the die head body (5), the material pushing plates (7) are slidably arranged in the slide ways, the slide ways are elastically connected with the die head body (5) through tension springs (8), and one end, close to the central axis of the die head body (5), of the material pushing plates (7) is parallel to the inner wall of the conical cavity;

the driving ring (9) is embedded and installed on the guiding-in cylinder (1), a plurality of semicircular protruding portions (10) and semicircular concave portions (11) which are uniformly distributed and are arranged in a staggered mode are arranged at the inner wall of the driving ring (9), one end, far away from the central axis of the die head body (5), of the pushing plate (7) is semicircular, and one end, far away from the central axis of the die head body (5), of the pushing plate (7) is in contact with the semicircular protruding portions (10) or the semicircular concave portions (11) at the inner wall of the driving ring (9).

2. Cable extrusion apparatus according to claim 1, wherein a guiding straight core barrel (12) is mounted in the guiding barrel (1) in line with the central axis of the guiding barrel (1), and a preheating assembly (13) is mounted between the guiding straight core barrel (12) and the guiding barrel (1).

3. Cable extrusion apparatus according to claim 2, wherein a feed amount adjustment assembly is mounted in the feed pipe (4), the feed amount adjustment assembly comprising a core plug (14) slidably mounted in the feed pipe (4) and a drive cylinder (15) powering the movement of the core plug (14); the guide-in cylinder (1) is provided with an expanding cavity (16) close to the feeding pipe (4), the outer diameter of the core plug (14) is smaller than the inner diameter of the expanding cavity (16), and the core plug (14) is positioned in the expanding cavity (16).

4. A cable extrusion device according to claim 3, characterized in that the feeding pipe (4) and the spiral feeder (2) are two groups, the output end of the feeding pipe (4) extends into the material cavity (3) along the radial direction of the guiding cylinder (1), a cleaning opening (17) which is collinear with the central axis of the feeding pipe (4) and is communicated with the material cavity (3) is arranged on the guiding cylinder (1), and a sealing plug (18) is detachably arranged at the cleaning opening (17).

5. Cable extrusion apparatus according to claim 4, wherein the output end of the drive cylinder (15) is jacketed with a jacket tube (19), a heating assembly (20) being mounted between the jacket tube (19) and the output end of the drive cylinder (15).

6. The cable extrusion device according to claim 1, further comprising a cooling water tank (21) and a plurality of water spray pipes (22), wherein a semicircular bracket (23) which is collinear with the central axis of the guide-in cylinder (1) is arranged in the cooling water tank (21), and the output end of the water spray pipes (22) is positioned above the middle part of the cooling water tank (21).

7. Cable extrusion apparatus according to claim 1, further comprising a traction mechanism comprising a frame (24) and two belt conveyors (25) mounted on the frame (24).

8. Cable extrusion apparatus according to claim 7, wherein the two belt conveyors (25) are slidably mounted up and down on a frame (24), and a screw (26) in threaded driving connection with the belt conveyors (25) is rotatably mounted on the frame (24).

9. Cable extrusion apparatus according to claim 8, further comprising a second drive motor (27) mounted on the frame (24) and a drive shaft (28) mounted at an output end of the second drive motor (27), wherein the belt conveyors (25) are each provided with a steering gear box (29), and wherein the drive shaft (28) is in driving connection with an input end of the steering gear box (29).