Insulating layer extruder for cable manufacture

Abstract

This invention provides an insulation layer extruder for cable manufacturing, relating to the field of cable processing technology. It includes: a base plate, a conveyor seat fixedly connected to the upper end of the base plate, a heater installed on one side of the conveyor seat, a stabilizing plate fixedly connected to the side of the base plate, a conveying pipe installed through the interior of the stabilizing plate, a filter housing fixedly connected to the exterior of the conveying pipe, a first flow-guiding housing installed on one side of the filter housing, and a support plate fixedly connected to the upper end of the base plate. Through the synergistic effect of the flow-guiding structure and the dust collection assembly, the negative pressure generated by the fan can pass through the ventilation mesh of the conveying pipe to perform negative pressure dust blowing and cleaning of the raw materials during the conveying process. The dust-laden airflow is concentrated and guided to the filter bucket through the first flow-guiding housing, achieving efficient dust filtration and collection, reducing dust impurities in the raw materials from the source, and preventing impurities from affecting the forming quality and insulation performance of the cable insulation layer.

Description

Technical Field

[0001] This invention relates to the field of cable processing technology, and in particular to an insulation extruder for cable manufacturing. Background Technology

[0002] In cable manufacturing, insulation extrusion is one of the core processes. The insulation layer is wrapped around the cable using an insulation extruder. The performance of the insulation extruder directly affects the forming quality of the cable insulation layer, production efficiency, and the cleanliness of the production environment. Currently, insulation extruders used in cable manufacturing still have the following shortcomings in practical applications:

[0003] Traditional extruders require manual labor to continuously add raw materials to the hopper, increasing the labor involved in feeding the raw materials. At the same time, the raw materials contain dust and impurities. Dust can easily float in the air, causing pollution to the surrounding environment. Furthermore, dust and impurities can easily melt along with the raw materials, thus affecting the quality of the insulation layer.

[0004] In addition, after the traditional extruder extrudes the cable insulation layer, a cooling pool is usually required to water-cool the insulation layer. This not only occupies the space of the extruder but also increases the additional energy consumption. At the same time, water cooling can easily lead to uneven circumferential cooling of the cable insulation layer, causing shrinkage deformation and affecting the roundness and dimensional accuracy of the insulation layer. Summary of the Invention

[0005] This invention relates to an insulation extruder for cable manufacturing. A stabilizing plate and a support plate ensure precise positioning and secure fixing of components such as the conveying pipe and the diversion shell. The conveying mechanism, through a single-power double-screw drive, achieves continuous and synchronous feeding and conveying of the insulation material, and works with a heater to preheat and plasticize the material, improving the efficiency of material processing before extrusion. The diversion structure and dust collection components work together to divert, filter, and collect dust during material conveying through negative pressure suction, effectively reducing dust pollution, ensuring a clean production environment, and preventing dust blockage from affecting equipment operation. The cleaning mechanism, through gear and rack transmission, achieves automated reciprocating cleaning, promptly cleaning dust from the outer wall of the filter shell, ensuring diversion and heat dissipation effects. A protective cover, in conjunction with a second locking frame, provides dust prevention and protection during the feeding process, ensuring the cleanliness of the material. The cooling ring utilizes fan power to achieve uniform circumferential cooling of the cable insulation layer, improving the extrusion molding quality. The overall equipment has a compact structure and all mechanisms work together to achieve integrated operation of feeding, conveying, plasticizing, dust prevention and cooling of raw materials before extrusion of cable insulation layer. This effectively improves extrusion efficiency and cable forming quality, while reducing manual operation intensity and dust pollution, and is suitable for the needs of large-scale cable production.

[0006] This invention provides an insulation layer extruder for cable manufacturing, specifically comprising: a base plate, a conveyor seat fixedly connected to the upper end of the base plate, a heater installed on one side of the conveyor seat, a stabilizing plate fixedly connected to the side of the base plate, a conveying pipe installed through the inside of the stabilizing plate, a filter housing fixedly connected to the outside of the conveying pipe, a first drain housing installed on one side of the filter housing; a support plate fixedly connected to the upper end of the base plate, a second drain housing fixedly connected to the upper end of the support plate, a second positioning rod movably connected to the outside of the conveying pipe, a funnel fixedly connected to the upper end of the conveyor seat, a protective cover fixedly connected to the upper end of the funnel, a second locking frame installed between the funnel and the protective cover, and a cooling ring fixedly connected to the upper end of the base plate.

[0007] Furthermore, the bottom of the protective cover is provided with two sets of third positioning rods distributed in the same direction. A second locking frame is installed between two adjacent third positioning rods. A set of sliding holes is opened on the side of the second locking frame. The third positioning rods pass through the interior of the sliding holes. A set of locking claws is provided at the bottom of the second locking frame. The locking claws are of the inclined block structure. A right-angle bent edge is provided at the edge of the funnel. The locking claws extend to the bottom of the right-angle bent edge.

[0008] Furthermore, a first electric motor is fixedly connected to the upper end of the protective cover. A set of bolt mounting holes are opened at the corner of the first electric motor. A rotating hole is opened inside the funnel. A screw conveyor is installed through the rotating hole. The first electric motor, the conveying pipe, the screw feeder, and the screw conveyor cooperate to form a conveying mechanism. The upper end of the screw conveyor is connected to the drive shaft of the first electric motor. A set of docking grooves distributed in a ring array are opened at the bottom of the drive shaft of the first electric motor. The docking grooves are arc structures. The screw conveyor has a set of docking protrusions distributed in a ring array at the upper end. The docking protrusions extend into the interior of the docking grooves.

[0009] Furthermore, a stabilizing hole corresponding to the conveying pipe is opened inside the stabilizing plate, the conveying pipe passes through the inside of the stabilizing hole, and a threaded mounting hole is opened at the upper end of the stabilizing plate.

[0010] Furthermore, a rack is fixedly connected to one side of the sliding rod, and a second positioning rod is provided on one side of the rack. A sliding hole corresponding to the sliding rod is opened inside the stabilizing plate, and the sliding rod passes through the inside of the sliding hole. A sliding hole is opened on the outside of the conveying pipe, and the second positioning rod passes through the inside of the sliding hole. A gear is installed at the end of the rotating shaft. The gear is an incomplete gear that meshes with the rack. A support spring is installed on the outside of the second positioning rod.

[0011] Furthermore, a second positioning plate is fixedly connected to the outer side of the sliding rod. The second positioning plate has an arc structure. A cleaning brush is installed on one side of the second positioning plate. The inner wall of the cleaning brush is in contact with the outer wall of the filter housing. A set of second positioning rods is provided on one side of the cleaning brush. The sliding rod, the second positioning plate, the rack, the second positioning rods, and the cleaning brush cooperate with each other to form a cleaning mechanism. A set of sliding holes corresponding to the second positioning rods are opened inside the second positioning plate. The second positioning rods pass through the inside of the sliding holes. A support spring is installed on the outer side of the second positioning rods.

[0012] Furthermore, a set of exhaust holes arranged in a ring array are opened inside the cooling ring, a docking sleeve is provided on one side of the cooling ring, the docking sleeve is connected to the exhaust holes, and an exhaust sleeve is provided on one side of the fan.

[0013] Furthermore, a set of ventilation mesh holes is opened in the middle of the conveying pipe. The filter housing and the first drainage housing cover the outside of the ventilation mesh holes. A set of first positioning rods is provided on the outer side of the filter housing. A first locking frame with a sliding connection is installed between two adjacent first positioning rods. The filter housing, the first drainage housing, the first positioning rods, and the first locking frame cooperate with each other to form a drainage structure. A set of sliding holes is opened on the side of the first locking frame. The first positioning rods pass through the interior of the sliding holes. A support spring is installed on the outer side of the first positioning rods. A set of claws is provided on one side of the first locking frame. The claws are inclined block structures.

[0014] Furthermore, an installation groove is formed on the drainage hole of the second drainage shell, and a filter barrel is installed inside the installation groove. The filter barrel is connected to the drainage hole of the second drainage shell. A fixedly connected sealing cover is installed on the upper end of the second drainage shell. A docking sleeve is provided in the middle part of the first drainage shell and the sealing cover respectively. The docking sleeve of the sealing cover is connected to the filter barrel.

[0015] Furthermore, a through slot is opened at the upper end of the funnel and at the bottom of the protective cover, the upper end of the conveying pipe passes through the inside of the through slot, and the protective cover covers the upper end of the funnel; a screw feeder is installed inside the conveying pipe, a driven bevel gear is installed at the upper end of the screw feeder, and a driving bevel gear is installed at the upper end of the screw conveyor, and the driving bevel gear and the driven bevel gear mesh.

[0016] Furthermore, a set of bolt mounting holes are respectively opened at the corners of the support plate and the second drainage housing. A rotating hole is opened inside the second drainage housing, and a rotating shaft with a rotating connection is installed through the rotating hole. A fan is installed on the outer side of the second drainage housing. A drainage hole is opened inside the second drainage housing. The fan and the drainage hole are connected. A drive shaft of a second electric motor is fixedly connected to the outer side of the fan.

[0017] Furthermore, a first positioning plate is provided on one side of the filter barrel. The first positioning plate extends outward to the upper end of the sealing cover. A positioning ear plate is provided at the upper end of the first positioning plate. The positioning ear plate has an L-shaped structure. A sliding locking pin is installed through the interior of the positioning ear plate. A locking hole is opened on one side of the sealing cover and the first positioning plate respectively. The bottom of the locking pin extends into the interior of the locking hole. A support spring is installed on the outer side of the locking pin.

[0018] Furthermore, a set of clamping blocks is provided on the inner side of the first positioning plate. The clamping blocks have a rectangular structure and the side of the clamping blocks extends to the mating sleeve position of the sealing cover. The second drainage shell, filter bucket, second electric motor, fan, sealing cover, first positioning plate, clamping blocks, locking pin, and rotating shaft cooperate with each other to form a dust collection assembly.

[0019] This invention provides an insulation layer extruder for cable manufacturing, which has the following advantages:

[0020] The insulation layer extruder in this invention is driven by a first electric motor, which, in conjunction with the meshing transmission of the driving bevel gear and the driven bevel gear, synchronously transmits a single power to the screw conveyor and the screw feeder. This enables the simultaneous conveying of raw materials in the hopper and the feeding in the conveying pipe, eliminating the need for an additional power mechanism. This simplifies the equipment structure while ensuring the continuity and synchronization of raw material conveying, significantly improving feeding and conveying efficiency. The quick-locking structure between the protective cover and the hopper, and the automatic docking design between the electric motor and the screw conveyor, further enhance the equipment assembly and operation efficiency and reduce the intensity of manual operation.

[0021] Through the synergistic effect of the diversion structure and dust collection components, the negative pressure generated by the fan can be used to clean the raw materials during the conveying process by blowing away dust through the ventilation mesh of the conveying pipe. The dust-laden airflow is concentrated and diverted to the filter bucket through the first diversion shell, achieving efficient filtration and collection of dust. This reduces dust impurities in the raw materials from the source, preventing impurities from affecting the forming quality and insulation performance of the cable insulation layer. At the same time, each filter component can be quickly disassembled and installed, facilitating cleaning and replacement, and ensuring long-term stable cleaning effect.

[0022] Each component adopts a quick-release locking structure, allowing for the disassembly and assembly of components such as protective covers, filter housings, and filter barrels without the need for complex tools, significantly reducing the difficulty and cost of equipment maintenance.

[0023] The second electric motor drives the fan, which not only provides continuous negative pressure for cleaning raw materials, but also delivers airflow to the cooling ring through the drainage pipe, realizing the recycling of airflow resources. There is no need to set up a separate cooling device and dust removal power device, saving equipment space and energy consumption. The annular array of exhaust holes in the cooling ring can make the cooling air blow out evenly along the circumference of the cable insulation layer, realizing rapid and uniform cooling of the cable after extrusion, avoiding the shrinkage and deformation of the insulation layer caused by uneven local cooling, and solving the problem of setting up a separate cooling pool to cool the insulation layer. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0025] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0026] In the attached diagram:

[0027] Figure 1 A schematic diagram of the insulating layer extruder structure of the present invention is shown;

[0028] Figure 2 The present invention is shown Figure 1 A schematic diagram of the structure from the rear view;

[0029] Figure 3 The present invention is shown Figure 1 A schematic diagram of the structure from an upward angle;

[0030] Figure 4 A schematic diagram of a partial cross-sectional view of the insulating layer extruder of the present invention is shown;

[0031] Figure 5 A schematic diagram of a partially disassembled structure of the insulating layer extruder of the present invention is shown;

[0032] Figure 6 The diagram shows the drainage structure and cleaning mechanism of the present invention.

[0033] Figure 7 A schematic diagram of the disassembled structure of the drainage structure and cleaning mechanism of the present invention is shown;

[0034] Figure 8 This diagram shows another view of the drainage structure and cleaning mechanism of the present invention after disassembly.

[0035] Figure 9 A schematic diagram of the conveying mechanism and the diversion structure of the present invention is shown;

[0036] Figure 10 A schematic diagram of the cross-sectional structure of the second drainage shell of the present invention is shown;

[0037] Figure 11 A schematic diagram of the protective cover structure of the present invention is shown.

[0038] List of reference numerals

[0039] 100. Base plate; 110. Stabilizing plate; 120. Support plate;

[0040] 200. Conveyor seat; 210. Heater; 220. Funnel;

[0041] 300. Conveying mechanism; 310. First electric motor; 320. Conveying pipe; 330. Screw feeder; 340. Screw conveyor;

[0042] 400. Drainage structure; 410. Filter housing; 420. First drainage housing; 430. First positioning rod; 440. First locking frame;

[0043] 500. Dust collection assembly; 510. Second drainage housing; 520. Filter canister; 530. Second electric motor; 540. Fan; 550. Sealing cover; 560. First positioning plate; 5601. Clamping block; 570. Locking pin; 580. Rotating shaft;

[0044] 600. Cleaning mechanism; 610. Sliding rod; 620. Second positioning plate; 630. Rack; 640. Second positioning rod; 650. Cleaning brush;

[0045] 700. Protective cover; 710. Third positioning rod;

[0046] 800. Second locking frame;

[0047] 900. Cooling ring. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] Example 1: Please refer to Figures 1 to 11 :

[0050] This invention proposes an insulation layer extruder for cable manufacturing, comprising: a base plate 100, a conveyor seat 200 fixedly connected to the upper end of the base plate 100, a heater 210 mounted on one side of the conveyor seat 200, a stabilizing plate 110 fixedly connected to the side of the base plate 100, a conveying pipe 320 being installed through the interior of the stabilizing plate 110, a stabilizing hole corresponding to the conveying pipe 320 being formed inside the stabilizing plate 110, the conveying pipe 320 passing through the interior of the stabilizing hole, a threaded mounting hole being formed at the upper end of the stabilizing plate 110, and matching bolts being installed inside the bolt mounting hole according to actual needs, thus stabilizing the conveying pipe 320; a through slot being formed at the upper end of the funnel 220 and the bottom of the protective cover 700, respectively, for the conveying pipe 320. The upper end of the 0 passes through the inside of the slot, and the protective cover 700 covers the upper end of the funnel 220. The protective cover 700 blocks dust and debris from entering during feeding, preventing raw material contamination. A screw feeder 330 is installed inside the conveying pipe 320. A driven bevel gear is installed at the upper end of the screw feeder 330, and a driving bevel gear is installed at the upper end of the screw conveyor 340. The driving bevel gear and the driven bevel gear mesh. Specifically, the meshing of the bevel gears transmits the single power of the first electric motor 310 to the screw conveyor 340 and the screw feeder 330 simultaneously, so that the conveying of raw materials in the funnel 220 and the feeding in the conveying pipe 320 are synchronized without the need for an additional power source. At the same time, it ensures the continuity and synchronicity of raw material conveying and improves feeding efficiency.

[0051] In at least one embodiment, a filter housing 410 is fixedly connected to the outside of the delivery pipe 320, and a first drainage housing 420 is installed on one side of the filter housing 410. A set of ventilation mesh holes is opened in the middle of the delivery pipe 320. The filter housing 410 and the first drainage housing 420 cover the outside of the ventilation mesh holes. A set of first positioning rods 430 are provided on the outer side of the filter housing 410. A first locking frame 440 is installed between two adjacent first positioning rods 430. The filter housing 410, the first drainage housing 420, the first positioning rods 430, and the first locking frame 440 cooperate with each other to form a drainage structure 400. A set of sliding holes is opened on the side of the first locking frame 440. The first positioning rods 430 pass through the interior of the sliding holes. A support spring is installed on the outer side of the first positioning rods 430. The support spring presses the first locking frame 440 inward to lock it. The frame 440 fits snugly against the filter housing 410 and the first drainage housing 420. A set of claws with an inclined block structure is provided on one side of the first locking frame 440. Specifically, the ventilation mesh allows for ventilation and heat dissipation inside the conveying pipe 320, as well as dust drainage, preventing raw materials from clumping due to excessive temperature during transport, and simultaneously sucking out dust from the raw materials. The filter housing 410 filters dust from the external drainage air, preventing dust from entering the conveying pipe 320. The first positioning rod 430 cooperates with the support spring to automatically lock the filter housing 410 and the first drainage housing 420 together. The inclined block structure claws allow for quick assembly and disassembly of the filter housing 410 and the first drainage housing 420, facilitating cleaning and replacement of both. External airflow passes through the filter housing 410 and enters the interior of the conveying pipe 320, where it blows dust and impurities from the raw materials. The airflow carrying dust then passes through the first drainage housing 420 for concentrated drainage.

[0052] In at least one embodiment, a support plate 120 is fixedly connected to the upper end of the base plate 100. A second drainage housing 510 is fixedly connected to the upper end of the support plate 120. An installation groove is formed on the drainage hole of the second drainage housing 510. A filter barrel 520 is installed inside the installation groove. The filter barrel 520 communicates with the drainage hole of the second drainage housing 510. A sealing cover 550 is fixedly connected to the upper end of the second drainage housing 510. A docking sleeve is provided in the middle part of the first drainage housing 420 and the sealing cover 550 respectively. A matching drainage pipe is installed between the two docking sleeves according to actual needs. The docking sleeve of the sealing cover 550 communicates with the filter barrel 520. Specifically, the second... The concentrated airflow from the first drainage housing 420 enters the filter bucket 520 for filtration and dust collection, achieving self-cleaning of the raw materials and improving their cleanliness. A set of bolt mounting holes are respectively opened at the corners of the support plate 120 and the second drainage housing 510. Matching bolts are installed inside these holes as needed. A rotating hole is opened inside the second drainage housing 510, through which a rotating shaft 580 is installed. A fan 540 is installed on the outer side of the second drainage housing 510. A drainage hole is opened inside the second drainage housing 510, connecting the fan 540 and the drainage hole. A drive shaft of a second electric motor 530 is installed on the outer side of the fan 540. The fixed connection serves a specific function: the second electric motor 530 provides stable power to the fan 540. The negative pressure generated by the fan 540's operation rapidly draws in dust-laden airflow through the drainage holes, providing continuous negative pressure power to the drainage structure 400 and the dust collection assembly 500, ensuring efficient dust drainage and collection. Simultaneously, the airflow from the fan 540 can be delivered to the cooling ring 900 via pipelines, achieving multiple uses and saving equipment space and cost. A first positioning plate 560 is located on one side of the filter cartridge 520, extending outwards to the upper end of the sealing cover 550. The first positioning plate 560 facilitates the operator's disassembly and assembly of the filter cartridge 520. A positioning ear plate is located at the upper end of the first positioning plate 560. The positioning ear plate has an L-shaped structure, and a sliding locking pin 570 is installed through the interior of the positioning ear plate. A locking hole is opened on one side of the sealing cover 550 and the first positioning plate 560 respectively. The bottom of the locking pin 570 extends into the interior of the locking hole. A support spring is installed on the outer side of the locking pin 570. The support spring presses the locking pin 570 downward elastically. Specifically, the first positioning plate 560 allows the operator to quickly pull out the filter canister 520, improving the efficiency of cleaning and replacing the filter canister 520; the support spring pushes the locking pin 570 into the locking hole to quickly lock and fix the filter canister 520. At the same time, pulling the locking pin 570 upward will unlock the filter canister 520. The operation is simple and convenient.

[0053] In at least one embodiment, a second positioning rod 640 is movably connected to the outer side of the conveying pipe 320. A rack 630 is fixedly connected to one side of the sliding rod 610, and a second positioning rod 640 is provided on one side of the rack 630. A sliding hole corresponding to the sliding rod 610 is opened inside the stabilizing plate 110, and the sliding rod 610 passes through the interior of the sliding hole. A sliding hole is opened on the outer side of the conveying pipe 320, and the second positioning rod 640 passes through the interior of the sliding hole. A gear is installed at the end of the rotating shaft 580. The gear is an incomplete gear. The rack 630 engages, converting the rotational motion of the rotating shaft 580 into the linear reciprocating motion of the sliding rod 610 and the rack 630. A support spring is installed on the outer side of the second positioning rod 640. The support spring pushes the sliding rod 610, rack 630, and second positioning rod 640 to reset, thus cooperating with the rack 630 and the incomplete gear to realize the reciprocating movement of the sliding rod 610, rack 630, and second positioning rod 640. A second positioning plate 620 is fixedly connected to the outer side of the sliding rod 610. The second positioning plate 620 has an arc structure. A cleaning brush 650 is installed on one side, with its inner wall fitting against the outer wall of the filter housing 410. A set of second positioning rods 640 is provided on one side of the cleaning brush 650. The sliding rod 610, second positioning plate 620, rack 630, second positioning rods 640, and cleaning brush 650 cooperate to form a cleaning mechanism 600. A set of sliding holes corresponding to the second positioning rods 640 are opened inside the second positioning plate 620, through which the second positioning rods 640 pass. A support spring is installed on the outer side of the second positioning rods 640, and the support spring pushes the cleaning... The cleaning brush 650 flexibly fits the filter housing 410. Specifically, the arc-shaped second positioning plate 620 adapts to the arc-shaped structure of the filter housing 410, ensuring that the cleaning brush 650 flexibly fits the outer wall of the filter housing 410, avoiding wear caused by hard contact of the cleaning brush 650. When the sliding rod 610 moves, it drives the second positioning plate 620 to move, thereby realizing the reciprocating movement of the cleaning brush 650. The linear reciprocating motion of the cleaning mechanism 600 can automatically clean the dust and impurities attached to the outer wall of the filter housing 410, prevent the mesh from clogging, and ensure stable dust removal of the raw materials in the conveying pipe 320.

[0054] In at least one embodiment, the upper end of the conveyor seat 200 is provided with a funnel 220 fixedly connected to it, and a protective cover 700 fixedly connected to it is installed at the upper end of the funnel 220. A set of second locking frames 800 is installed between the funnel 220 and the protective cover 700. The bottom of the protective cover 700 is provided with two sets of third positioning rods 710 distributed in the same direction. A second locking frame 800 is installed between two adjacent third positioning rods 710. A set of sliding holes is opened on the side of the second locking frame 800. The third positioning rods 710 pass through the interior of the sliding holes and are circumferentially positioned by the third positioning rods 710. The bottom of the second locking frame 800 is... A set of locking claws is provided, the locking claws being a beveled block structure. A right-angled bend is located at the edge of the funnel 220, and the locking claws extend to the bottom of the right-angled bend. Specifically, the third positioning rod 710 provides sliding guidance and circumferential positioning for the second locking frame 800, preventing the second locking frame 800 from shifting or rotating during sliding. The locking claws of the second locking frame 800 engage with the right-angled bend of the funnel 220, achieving quick locking and fixation between the protective cover 700 and the funnel 220. Simultaneously, the second locking frame 800 facilitates the quick assembly and disassembly of the protective cover 700. The protective cover 700 can prevent dust and debris from flying and falling in during raw material feeding, ensuring the safety of the raw materials. Cleanliness; A first electric motor 310 is fixedly connected to the upper end of the protective cover 700. A set of bolt mounting holes are opened at the corner of the first electric motor 310. Matching bolts are installed inside the bolt mounting holes according to actual needs. After the bolts are installed, the first electric motor 310 is secured. A rotating hole is opened inside the funnel 220. A screw conveyor 340 is installed through the rotating hole. The first electric motor 310, conveying pipe 320, screw feeder 330, and screw conveyor 340 cooperate with each other to form the conveying mechanism 300. The upper end of the screw conveyor 340 and the first electric motor 310... The drive shaft of the first electric motor 310 has a set of docking grooves arranged in a ring array at the bottom. The docking grooves are arc structures. The screw conveyor 340 has a set of docking protrusions arranged in a ring array at the top. The docking protrusions extend into the interior of the docking grooves. After the protective cover 700 is installed, the drive shaft of the first electric motor 310 and the screw conveyor 340 automatically dock without manual calibration, which improves the assembly efficiency of the first electric motor 310 and the screw conveyor 340. The conveying mechanism 300, through the cooperation of the screw conveyor 340, continuously and stably conveys the insulating raw material into the funnel 220 for further processing.

[0055] In at least one embodiment, a cooling ring 900 is fixedly connected to the upper end of the base plate 100. A set of exhaust holes arranged in a ring array are opened inside the cooling ring 900. A docking sleeve is provided on one side of the cooling ring 900, and the docking sleeve communicates with the exhaust holes. An exhaust sleeve is provided on one side of the fan 540. A guide pipe is installed between the exhaust sleeve and the docking sleeve of the cooling ring 900 to achieve rapid connection between the fan 540 and the cooling ring 900, stably delivering airflow to the cooling ring 900 and fully utilizing the airflow generated by the fan 540. This also solves the problem of separately setting up a cable insulation layer cooling device. The ring array of exhaust holes allows cooling air to be blown out evenly along the circumference of the cable insulation layer, achieving rapid and uniform cooling after cable extrusion, avoiding uneven local cooling that could lead to insulation layer shrinkage and deformation, and improving the forming quality of the cable insulation layer. A set of clamping blocks is provided on the inner side of the first positioning plate 560. 5601, the clamping block 5601 has a rectangular structure, and its side extends to the docking sleeve position of the sealing cover 550. The second drainage housing 510, filter barrel 520, second electric motor 530, fan 540, sealing cover 550, first positioning plate 560, clamping block 5601, locking pin 570, and rotating shaft 580 cooperate to form the dust collection assembly 500. Specifically, the clamping block 5601 can clamp the connection position between the drainage pipe and the docking sleeve to prevent airflow leakage caused by loose pipe connection, and ensure the sealing and efficiency of negative pressure drainage. The dust collection assembly 500 generates negative pressure through the fan 540 to realize the full suction, filtration and collection of dust during the raw material transportation process, reduce dust pollution from the source, improve the cleanliness of the production environment, and at the same time, the filtered clean airflow can be recycled to the cooling ring 900 to realize resource recycling and reduce energy consumption.

[0056] Example 2, based on Example 1, such as Figures 1-2 As shown, a dust collection container is installed on the upper end of the base plate 100 according to actual needs, so that the dust collection container and the filter housing 410 are aligned.

[0057] The working principle of this embodiment:

[0058] Before use, place the raw material for extruding the cable insulation layer into one side of the conveying pipe 320, and install the protective cover 700 onto the upper end of the funnel 220. At this time, the second locking frame 800 automatically locks the protective cover 700. At this time, the drive shaft of the first electric motor 310 and the screw conveyor 340 automatically and precisely connect. Connect the drain pipe to the docking sleeve of the first drain housing 420 and the sealing cover 550, pull the locking pin 570 upward to install the filter bucket 520 into the mounting groove of the second drain housing 510, release the locking pin 570 to lock the filter bucket 520, and press the clamping block 5601 to press the drain pipe connection position to complete the connection between the first drain housing 420 and the filter bucket 520.

[0059] When the extruder is started, the first electric motor 310 operates, simultaneously driving the screw conveyor 340 and the screw feeder 330 to rotate through the meshing of bevel gears. The screw conveyor 340 pushes the raw material to the conveying pipe 320, and the screw feeder 330 continuously conveys the raw material upward along the conveying pipe 320. The heater 210 preheats and plasticizes the raw material in the conveying pipe 320. At the same time, the second electric motor 530 operates, driving the fan 540 to rotate and generate negative pressure. The negative pressure is transmitted to the first flow housing 420 through the flow holes and flow pipes of the second flow housing 510. The dust in the raw material in the conveying pipe 320 is sucked out through the ventilation mesh and filtered through the filter housing 410 and the filter barrel 520 in sequence. The dust is collected in the filter barrel 520. Part of the filtered clean airflow is transported to the cooling ring 900 through the pipeline. The cooling ring 900 discharges airflow to dissipate heat evenly to the insulation layer.

[0060] The operation of fan 540 simultaneously drives the rotating shaft 580 to rotate. Through the meshing of gear and rack 630, the cleaning mechanism 600 is driven to perform linear reciprocating motion along sliding rod 610 and second positioning rod 640. Under the clamping force of the support spring, cleaning brush 650 flexibly adheres to the outer wall of filter housing 410. Cleaning brush 650 automatically cleans the dust adhering to the outer wall of filter housing 410 to prevent mesh blockage. After being plasticized by conveying pipe 320, the raw material is conveyed to the extrusion end and extruded to form a cable insulation layer. When the cable passes through cooling ring 900, the exhaust hole of cooling ring 900 blows out uniform cooling air along the circumference of the cable to achieve rapid and uniform cooling of the insulation layer and ensure molding quality.

[0061] After the extruder has been running for a period of time, the filter canister 520 can be quickly pulled out by pulling up the locking pin 570 to clean the dust collected inside the filter canister 520; the filter housing 410 can be quickly disassembled and cleaned by sliding the first locking bracket 440. The whole operation process is convenient and does not require disassembling a large number of parts.

Claims

1. An insulation extruder for cable manufacturing, comprising: A base plate (100) is provided with a fixedly connected conveying seat (200) at its upper end. A heater (210) is installed on one side of the conveying seat (200). A fixedly connected stabilizing plate (110) is provided on the side of the base plate (100). The stabilizing plate (110) is characterized in that a conveying pipe (320) and a sliding rod (610) are installed through the inside of the stabilizing plate (110). A fixedly connected filter housing (410) is installed on the outside of the conveying pipe (320). A first drainage housing (420) is installed on one side of the filter housing (410). The upper part of the base plate (100) is... The end is provided with a fixed support plate (120), the upper end of the support plate (120) is provided with a fixed second drain housing (510), the outer side of the conveying pipe (320) is provided with a movable second positioning rod (640), the upper end of the conveying seat (200) is provided with a fixed funnel (220), the upper end of the funnel (220) is provided with a fixed protective cover (700), a set of second locking frames (800) is installed between the funnel (220) and the protective cover (700), and the upper end of the base plate (100) is provided with a fixed cooling ring (900).

2. The cable insulation extruder according to claim 1, characterized in that, The bottom of the protective cover (700) is provided with two sets of third positioning rods (710) distributed in the same direction. A second locking frame (800) is installed between two adjacent third positioning rods (710). A set of sliding holes is opened on the side of the second locking frame (800). The third positioning rods (710) pass through the interior of the sliding holes. A set of locking claws is provided at the bottom of the second locking frame (800). A right-angle bent edge is provided at the edge of the funnel (220). The locking claws extend to the bottom of the right-angle bent edge.

3. The cable insulation extruder according to claim 1, characterized in that, A first electric motor (310) is fixedly connected to the upper end of the protective cover (700). A set of bolt mounting holes are opened at the corner of the first electric motor (310). A rotating hole is opened inside the funnel (220). A screw conveyor (340) is installed through the rotating hole. The first electric motor (310), the conveying pipe (320), the screw feeder (330), and the screw conveyor (340) cooperate to form a conveying mechanism (300). The upper end of the screw conveyor (340) is connected to the drive shaft of the first electric motor (310). A set of docking grooves distributed in a ring array are opened at the bottom of the drive shaft of the first electric motor (310). A set of docking protrusions distributed in a ring array are provided at the upper end of the screw conveyor (340). The docking protrusions extend into the interior of the docking groove. A stabilizing hole corresponding to the conveying pipe (320) is opened inside the stabilizing plate (110). The conveying pipe (320) passes through the interior of the stabilizing hole. A threaded mounting hole is opened at the upper end of the stabilizing plate (110).

4. The cable insulation extruder according to claim 1, characterized in that, A rack (630) is fixedly connected to one side of the sliding rod (610), and a second positioning rod (640) is provided on one side of the rack (630). A sliding hole corresponding to the sliding rod (610) is opened inside the stabilizing plate (110), and the sliding rod (610) passes through the inside of the sliding hole. A sliding hole is opened on the outer side of the conveying pipe (320), and the second positioning rod (640) passes through the inside of the sliding hole. A gear is installed at the end of the rotating shaft (580). The gear is an incomplete gear, and the gear meshes with the rack (630). A support spring is installed on the outer side of the second positioning rod (640). A first positioning rod is fixedly connected to the outer side of the sliding rod (610). The second positioning plate (620) has a cleaning brush (650) installed on one side. The inner wall of the cleaning brush (650) is in contact with the outer wall of the filter housing (410). A set of second positioning rods (640) is provided on one side of the cleaning brush (650). The sliding rod (610), the second positioning plate (620), the rack (630), the second positioning rods (640), and the cleaning brush (650) cooperate with each other to form a cleaning mechanism (600). A set of sliding holes corresponding to the second positioning rods (640) are opened inside the second positioning plate (620). The second positioning rods (640) pass through the inside of the sliding holes. A support spring is installed on the outer side of the second positioning rods (640).

5. The cable insulation extruder according to claim 1, characterized in that, The cooling ring (900) has a set of exhaust holes arranged in a ring array inside. A docking sleeve is provided on one side of the cooling ring (900), and the docking sleeve is connected to the exhaust holes. An exhaust sleeve is provided on one side of the fan (540).

6. The cable insulation extruder according to claim 1, characterized in that, A set of ventilation mesh holes is opened in the middle of the conveying pipe (320). The filter housing (410) and the first drainage housing (420) cover the outside of the ventilation mesh holes. A set of first positioning rods (430) are provided on the outer side of the filter housing (410). A first locking frame (440) is installed between two adjacent first positioning rods (430). The filter housing (410), the first drainage housing (420), the first positioning rods (430), and the first locking frame (440) cooperate with each other to form a drainage structure (400). A set of sliding holes is opened on the side of the first locking frame (440). The first positioning rods (430) pass through the interior of the sliding holes. A support spring is installed on the outer side of the first positioning rods (430). A set of claws is provided on one side of the first locking frame (440).

7. The cable insulation extruder according to claim 1, characterized in that, An installation groove is opened on the drainage hole of the second drainage housing (510). A filter barrel (520) is installed inside the installation groove. The filter barrel (520) is connected to the drainage hole of the second drainage housing (510). A fixedly connected sealing cover (550) is installed on the upper end of the second drainage housing (510). A docking sleeve is provided in the middle part of the first drainage housing (420) and the sealing cover (550). The docking sleeve of the sealing cover (550) is connected to the filter barrel (520).

8. An insulation extruder for cable manufacturing according to claim 1, characterized in that, A through slot is opened at the upper end of the funnel (220) and the bottom of the protective cover (700). The upper end of the conveying pipe (320) passes through the inside of the through slot, and the protective cover (700) covers the upper end of the funnel (220). A screw feeder (330) is installed inside the conveying pipe (320). A driven bevel gear is installed at the upper end of the screw feeder (330), and a driving bevel gear is installed at the upper end of the screw conveyor (340). The driving bevel gear and the driven bevel gear mesh.

9. An insulation extruder for cable manufacturing according to claim 1, characterized in that, A set of bolt mounting holes are respectively opened at the corners of the support plate (120) and the second drainage housing (510). A rotating hole is opened inside the second drainage housing (510), and a rotating shaft (580) is installed through the rotating hole. A fan (540) is installed on the outer side of the second drainage housing (510). A drainage hole is opened inside the second drainage housing (510), and the fan (540) is connected to the drainage hole. A drive shaft of a second electric motor (530) is fixedly connected to the outer side of the fan (540).

10. An insulation extruder for cable manufacturing according to claim 7, characterized in that, A first positioning plate (560) is provided on one side of the filter barrel (520). The first positioning plate (560) extends outward to the upper end of the sealing cover (550). A positioning ear plate is provided at the upper end of the first positioning plate (560). A sliding locking pin (570) is installed through the interior of the positioning ear plate. A locking hole is opened on one side of the sealing cover (550) and the first positioning plate (560). The bottom of the locking pin (570) extends into the interior of the locking hole. A support spring is installed on the outer side of the locking pin (570). A set of clamping blocks (5601) is provided on the inner side of a positioning plate (560). The clamping blocks (5601) are rectangular in structure and the side of the clamping blocks (5601) extends to the mating sleeve position of the sealing cover (550). The second drainage housing (510), filter barrel (520), second electric motor (530), fan (540), sealing cover (550), first positioning plate (560), clamping blocks (5601), locking pin (570), and rotating shaft (580) cooperate with each other to form a dust collection assembly (500).

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