Extrusion molding device for compression-resistant fireproof cable

Abstract

The utility model relates to the technical field of cable production, and discloses a compression-resistant fireproof cable extrusion molding device. Comprising a base, the upper surface of the base is fixedly connected with a stirring cylinder, the upper end of the stirring cylinder is fixedly connected with a stirring motor, the output end of the stirring motor is fixedly connected with a stirring rod, the stirring rod is rotationally connected with the stirring cylinder, and the outer surface of the stirring rod is fixedly connected with a plurality of stirring blades; a leading-out motor is fixedly connected to the outer surface of the base, the output end of the leading-out motor penetrates through the base and is fixedly connected with an auger, the auger is rotationally connected with the pipeline, and an extrusion opening is fixedly connected to the end of the pipeline. The forming structure wraps the fireproof mud cable core, the fireproof mud cable core is wrapped into the wrapping cable core, the cable is formed after the wrapping cable core passing through the extrusion port is cooled, and at the moment, the forming structure cools the finished cable, so that the finished cable is rapidly cooled and shaped, the wrapping fireproof cloth can be automatically wrapped, and the production process of the compression-resistant fireproof cable is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of cable production, in particular to a compression-resistant and fireproof cable extrusion molding device. Background Art

[0002] Extrusion molding is also known as extrusion molding in plastic processing. It refers to a processing method in which the material passes through the action between the extruder barrel and the screw, is heated and plasticized, and is pushed forward by the screw, and continuously passes through the head to form various cross-section products or semi-finished products; Extrusion molding is mainly used to produce continuous profiles with a certain cross-section, such as films, sheets, plates, hard pipes, hoses, bellows, special-shaped materials, wires, cables, packaging tapes, rods, nets and composite films.

[0003] An existing Chinese patent application (authorization announcement number: CN210378634U) discloses a power cable sheath extrusion device. The device comprises a device body, a first connecting flange, an inner sleeve, and a second connecting flange. The first connecting flange is provided on the right side of the device body, a support seat is mounted on the inner wall of the device body, a sealing gland is mounted on the left side of the device body, a compression ring and a sealing gasket are mounted between the sealing gland and the support seat, and a first buffer sleeve is provided at the upper and lower ends of the left side of the sealing gland. An inner sleeve is provided inside the sealing gland, extending into the interior of the device body. A second connecting flange is provided on the left side of the inner sleeve. A mounting plate is provided on the left periphery of the device body. The overall device has a simple structure, which facilitates preventing lateral movement and displacement during settling. It also achieves a sliding seal under balanced sealing pressure, making it safe to use, highly stable, and practical, and therefore has considerable promotional value.

[0004] During the production process of pressure-resistant and fire-resistant cables, traditional heating cable extrusion molding devices often affect the production quality due to uneven heating of raw materials and insufficient stirring. At the same time, rapid cooling is required during the jacket molding. Pressure-resistant and fire-resistant cables also require the cable core to be wrapped with protective material and then wrapped with fireproof cloth before making the cable jacket. Traditional heating cable extrusion molding devices only cool down from the outside, and the cooling speed is slow, which causes the produced cable jacket to be deformed. Utility Model Content

[0005] The purpose of this application is to solve the problem that the existing traditional heating cable extrusion molding device only cools down from the outside, the cooling speed is slow, and the produced cable jacket is deformed. This application provides a pressure-resistant and fire-proof cable extrusion molding device.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] The pressure-resistant and fire-proof cable extrusion molding device includes a base, the upper surface of the base is fixedly connected to a stirring cylinder, the upper end of the stirring cylinder is fixedly connected to a stirring motor, the output end of the stirring motor is fixedly connected to a stirring rod, the stirring rod is rotatably connected to the stirring cylinder, a plurality of stirring blades are fixedly connected to the outer surface of the stirring rod, the lower end of the stirring cylinder is fixedly connected to a pipe, the pipe is fixedly connected to the base, the outer surface of the base is fixedly connected to an export motor, the output end of the export motor passes through the base and is fixedly connected to an auger, the auger is rotatably connected to the pipe, the end of the pipe is fixedly connected to an extrusion port, the inner wall of the extrusion port is slidingly provided with a finished cable, the end of the finished cable is fixedly connected to a wrapped cable core, the end of the wrapped cable core is fixedly connected to a cable core with attached fireproof mud, and a molding structure is provided at the upper end of the base.

[0008] By adopting the above technical scheme, when the pressure-resistant fire-proof cable is produced, the stirring motor is first used to drive the stirring rod to rotate, and the stirring rod drives the stirring to stir the rubber raw materials inside the stirring tank, and the stirred rubber raw materials are allowed to flow into the inner wall of the pipe. At this time, the output motor rotates to drive the auger to rotate, and the rubber raw materials are transported to the extrusion port. Before the attached fire-proof mud cable core passes through the extrusion port, the fire-proof mud cable core is wrapped by the molding structure, and the fire-proof mud cable core is wrapped into a wrapped cable core, so that the rubber raw material adheres to the wrapped cable core passing through the extrusion port, and forms a cable shell after cooling, so that the wrapped cable core is made into a finished cable and removed from the extrusion port. At the same time as the finished cable is discharged, the finished cable is cooled by the molding structure, so that it is quickly cooled and shaped, so that the traditional heating cable extrusion molding device only cools down from the outside, and the problems of slow cooling speed, slow molding and easy deformation are alleviated, and the process of wrapping the fireproof cloth can be automatically wrapped during the molding process of the finished cable, making the production process of the pressure-resistant fire-proof cable simpler.

[0009] Furthermore, the molding structure includes a cooling ring installed at the end of the extrusion port, the upper end of the base is fixedly connected to a water tank, the upper end of the water tank is fixedly connected to a water pump, the upper end of the water pump is fixedly connected to a water inlet pipe, the end of the water inlet pipe is fixedly connected to the cooling ring, the outer surface of the cooling ring is fixedly connected to a water outlet pipe, and the end of the water outlet pipe is fixedly connected to the water tank.

[0010] By adopting the above technical solution, the semi-formed wrapped cable core enters the interior of the cooling ring from one end of the cooling ring and leaves from the other end. At the same time, the water pump draws cooling water from the water tank and enters the cooling ring through the water inlet pipe. The water circulates in the cooling ring and then flows back into the water tank through the water outlet pipe at the lower end of the cooling ring. The temperature in the cooling ring is cooled by the repeated flow of water. The cooling ring cools the surface of the semi-formed wrapped cable core passing through the cooling ring, so that the liquid rubber solidifies on the surface of the wrapped cable core, and the semi-formed wrapped cable core is produced as a finished cable. The device cools the finished cable and quickly cools it down and takes shape.

[0011] Furthermore, a vertical plate is fixedly connected to the base, a wrapping ring is rotatably connected to one side of the vertical plate, a material roller is fixedly connected to the upper and lower ends of the wrapping ring, and a cloth wrapping roller is rotatably connected to the end of the material roller.

[0012] By adopting the above technical solution, the wrapping ring rotates, so that the wrapping ring drives the material roller and the cloth wrapping roller to rotate in a circle, and the protective cloth wrapped on the cloth wrapping roller is wrapped around the surface of the cable core attached with the fireproof mud as the cloth wrapping roller rotates, so that it is produced as a wrapped cable core. As the cable core attached with the fireproof mud moves toward the extrusion port, the protective cloth is wrapped more evenly.

[0013] Furthermore, a wrapping motor is fixedly connected to one side of the vertical plate, and a main gear is rotatably connected to the other side of the vertical plate. The output end of the wrapping motor passes through the vertical plate and is fixedly connected to the main gear. The outer wall of the wrapping ring is fixedly connected to a slave gear, and the slave gear is meshed with the main gear.

[0014] By adopting the above technical solution, before the attached fireproof mud cable core passes through the extrusion port, the attached fireproof mud cable core first passes through the wrapping ring, and at the same time, the wrapping motor is started to drive the main gear to rotate, the main gear drives the slave gear to rotate, and then drives the wrapping ring to rotate.

[0015] Furthermore, a feed port is fixedly connected to the upper end of the mixing cylinder, a feed motor is fixedly connected to the outer surface of the feed port, a distribution rod is fixedly connected to the output end of the feed motor, and the distribution rod is rotatably connected to the feed port.

[0016] By adopting the above technical solution, the rubber particles for producing cable casings are fed into the feed port. At this time, the feed motor drives the powder rod to break up the rubber particles, making the rubber particles entering the mixing tank looser and allowing the rubber particles to be heated more evenly during the heating process.

[0017] Furthermore, a heating jacket is fixedly connected to the inner wall of the mixing tank, and a plurality of heating copper wires are fixedly connected inside the heating jacket.

[0018] By adopting the above technical solution, the heating copper wire in the heating jacket on the inner wall of the mixing tank begins to heat up, heating the inside of the mixing tank. The heating jacket surrounding the inner wall of the mixing tank makes the heating more uniform, allowing the mixing tank to heat the rubber particles distributed throughout the interior more evenly.

[0019] Furthermore, a mounting ring is fixedly connected to the inner side of the cooling ring, an annular groove is provided on one side of the extrusion port, the shape of the mounting ring is adapted to the annular groove, a mounting groove is provided in the annular groove, a sliding column is fixedly connected to the inside of the mounting ring, a sliding plate is slidably connected to the outer surface of the sliding column, and the size of the sliding plate is adapted to the mounting groove.

[0020] By adopting the above technical solution, when the cooling ring needs to be loaded and unloaded, hold the cooling ring so that the mounting ring on one side is aligned with the annular groove on the extrusion outlet, and at the same time align the sliding plate with the mounting groove, and then insert the mounting ring into the annular groove. This can limit the cooling ring during installation, making it more accurate to install.

[0021] Furthermore, a semicircular limiting groove is opened inside the mounting groove, and a semicircular limiting block is fixedly connected to the end of the sliding plate. The semicircular limiting block is adapted to the semicircular limiting groove, and a spring is sleeved on the outside of the sliding column. The two ends of the spring are respectively fixedly connected to the mounting ring and the sliding plate.

[0022] By adopting the above technical solution, the mounting ring is inserted into the annular groove. At this time, as the mounting ring moves, the inner wall of the mounting groove squeezes the semicircular limit block, so that the sliding plate squeezes the spring to make it contract. When the mounting ring is fully inserted into the annular groove, the semicircular limit block is no longer squeezed by the inner wall of the mounting groove. At this time, the spring resets and pushes the sliding plate to drive the semicircular limit block to move into the semicircular limit groove and resist the semicircular limit groove.

[0023] In summary, the present application includes at least one of the following beneficial effects:

[0024] 1. In the present application, before the cable core with attached fireproof mud passes through the extrusion port, the cable core with attached fireproof mud first passes through the wrapping ring, and at the same time, the wrapping motor is started to drive the main gear to rotate, and the main gear drives the slave gear to rotate, and then drives the wrapping ring to rotate, so that the wrapping ring drives the material roller and the cloth wrapping roller to rotate in a circle, and the protective cloth wrapped on the cloth wrapping roller is wrapped around the surface of the cable core with attached fireproof mud as the cloth wrapping roller rotates, so that it is produced as a wrapped cable core. As the cable core with attached fireproof mud moves toward the extrusion port, the wrapping of the protective cloth becomes more uniform, and then the wrapped cable core enters from one end of the extrusion port, and is wrapped with a layer of molten liquid rubber when passing through the extrusion port, and then comes out from the other end. At this time, the liquid rubber wrapped on the surface of the end of the wrapped cable core begins to cool after leaving the extrusion port, and at this time the semi-formed wrapped cable core enters from one end of the cooling ring The cable core is then cooled by the cooling ring, and the liquid rubber is solidified on the surface of the wrapped cable core, so that the semi-formed wrapped cable core is produced as a finished cable. The device cools the finished cable and quickly cools it down to shape. The traditional heating cable extrusion molding device only cools down from the outside, and the problems of slow cooling speed, slow molding and easy deformation are alleviated. The process of wrapping the fireproof cloth can also be automatically wrapped during the molding process of the finished cable, making the production process of pressure-resistant and fire-resistant cables simpler.

[0025] When the locking cam is fully engaged, the spring pushes the sliding plate to move the semicircular limiting block toward the semicircular limiting groove, and contacts the semicircular limiting groove, so that the cooling ring is fixed on the extrusion port. This makes the disassembly of the cooling ring more convenient, and makes it more convenient to clean the extrusion port and the cooling ring, and reduces the problem that the extrusion port and the interior of the cooling ring are difficult to clean after the liquid rubber is blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the pressure-resistant and fire-resistant cable extrusion molding device in this application;

[0027] Figure 2 This is a schematic diagram of the internal structure of the compression-resistant and fire-resistant cable extrusion molding device in this application;

[0028] Figure 3 It is a side view of the compression-resistant and fire-resistant cable extrusion molding device in this application;

[0029] Figure 4 This is a schematic diagram of the cooling ring of the pressure-resistant and fire-resistant cable extrusion molding device in this application;

[0030] Figure 5 This is a schematic diagram of the extrusion port of the pressure-resistant and fire-resistant cable extrusion molding device in this application;

[0031] Figure 6 It is a partial schematic diagram of the compression-resistant and fire-resistant cable extrusion molding device in this application;

[0032] Figure 7 This application Figure 4 A in the middle is an enlarged schematic diagram;

[0033] Figure 8 This application Figure 6 Enlarged schematic diagram of point B in the middle.

[0034] Description of reference numerals:

[0035] 1. Base; 2. Mixing tank; 3. Pipeline; 4. Extrusion port; 5. Feed port; 6. Feed motor; 7. Distributing rod; 8. Mixing motor; 9. Attached fireproof mud cable core; 10. Wrapped cable core; 11. Finished cable; 12. Vertical plate; 13. Wrapped motor; 14. Main gear; 15. Slave gear; 16. Material roller; 17. Wrapping roller; 18. Cooling ring; 19. Water tank; 20. Water pump; 21. Water inlet pipe; 22. Water outlet pipe; 23. Export motor; 24. Mounting ring; 25. Mixing rod; 26. Mixing blade; 27. Heating sleeve; 28. Heating copper wire; 29. ​​Auger; 30. Semicircular limit block; 31. Sliding column; 32. Spring; 33. Mounting groove; 34. Annular groove; 35. Wrapping ring; 36. Sliding plate. DETAILED DESCRIPTION

[0036] The following is a combination of the embodiments of the present invention Figures 1-8 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0037] Reference Figure 1 and Figure 2 The utility model provides a technical solution: a pressure-resistant and fire-proof cable extrusion molding device, including a base 1, a stirring cylinder 2 is fixedly connected to the upper surface of the base 1, a stirring motor 8 is fixedly connected to the upper end of the stirring cylinder 2, a stirring rod 25 is fixedly connected to the output end of the stirring motor 8, the stirring rod 25 is rotatably connected to the stirring cylinder 2, a plurality of stirring blades 26 are fixedly connected to the outer surface of the stirring rod 25, a pipe 3 is fixedly connected to the lower end of the stirring cylinder 2, the pipe 3 is fixedly connected to the base 1, an export motor 23 is fixedly connected to the outer surface of the base 1, an output end of the export motor 23 passes through the base 1 and is fixedly connected to an auger 29, the auger 29 is rotatably connected to the pipe 3, an end of the pipe 3 is fixedly connected to an extrusion port 4, a finished cable 11 is slidingly provided on the inner wall of the extrusion port 4, an end of the finished cable 11 is fixedly connected to a wrapped cable core 10, an end of the wrapped cable core 10 is fixedly connected to a cable core 9 attached with fireproof mud, and a molding structure is provided on the upper end of the base 1.

[0038] When producing pressure-resistant fireproof cables, the stirring motor 8 is first used to drive the stirring rod 25 to rotate, and the stirring rod 25 drives the stirring to stir the rubber raw materials inside the stirring tank 2, and the stirred rubber raw materials are allowed to flow into the inner wall of the pipe 3. At this time, the output motor 23 rotates to drive the auger 29 to rotate, and the rubber raw materials are transported to the extrusion port 4. Before the attached fireproof mud cable core 9 passes through the extrusion port 4, the fireproof mud cable core is wrapped by the molding structure, and the fireproof mud cable core is wrapped into a wrapped cable core 10, so that the rubber raw material adheres to the wrapped cable core 10 passing through the extrusion port 4, and forms a cable shell after cooling, so that the wrapped cable core 10 is made into a finished cable 11 and removed from the extrusion port 4. At the same time as the finished cable 11 is discharged, the finished cable is cooled by the molding structure, so that it is quickly cooled and shaped, so that the traditional heating cable extrusion molding device only cools down from the outside, and the problems of slow cooling speed, slow molding and easy deformation are alleviated, and the process of wrapping the fireproof cloth can be automatically wrapped during the molding process of the finished cable 11, making the production process of pressure-resistant fireproof cables simpler.

[0039] Reference Figure 1 and Figure 2 、 Figure 3 、 Figure 4 The molding structure includes a cooling ring 18 mounted at the end of the extruder 4. A water tank 19 is fixedly connected to the top of the base 1. A water pump 20 is fixedly connected to the top of the water tank 19. A water inlet pipe 21 is fixedly connected to the top of the water pump 20. The end of the water inlet pipe 21 is fixedly connected to the cooling ring 18. A water outlet pipe 22 is fixedly connected to the outer surface of the cooling ring 18. The end of the water outlet pipe 22 is fixedly connected to the water tank 19. A vertical plate 12 is fixedly connected to the base 1. A wrapping ring 35 is rotatably connected to one side of the vertical plate 12. A material roller 16 is fixedly connected to the top and bottom ends of the wrapping ring 35. A cloth wrapping roller 17 is rotatably connected to the end of the material roller 16. A wrapping motor 13 is fixedly connected to one side of the vertical plate 12. A main gear 14 is rotatably connected to the other side of the vertical plate 12. The output end of the wrapping motor 13 passes through the vertical plate 12 and is fixedly connected to the main gear 14. A slave gear 15 is fixedly connected to the outer wall of the wrapping ring 35, which meshes with the main gear 14. The upper end of the mixing tank 2 is fixedly connected to a feed port 5, the outer surface of which is fixedly connected to a feed motor 6. The output end of the feed motor 6 is fixedly connected to a feed rod 7, which is rotatably connected to the feed port 5. A heating jacket 27 is fixedly connected to the inner wall of the mixing tank 2, and a plurality of heating copper wires 28 are fixedly connected to the interior of the heating jacket 27.

[0040] Before the attached fireproof mud cable core 9 passes through the extrusion port 4, the attached fireproof mud cable core 9 first passes through the wrapping ring 35, and at the same time the wrapping motor 13 is started to drive the main gear 14 to rotate, and the main gear 14 drives the slave gear 15 to rotate, and then drives the wrapping ring 35 to rotate, so that the wrapping ring 35 drives the material roller 16 and the cloth wrapping roller 17 to rotate in a circle, and the protective cloth wrapped on the cloth wrapping roller 17 is wound onto the surface of the attached fireproof mud cable core 9 as the cloth wrapping roller 17 rotates, so that it is produced as a wrapped cable core 10. As the attached fireproof mud cable core 9 moves toward the extrusion port 4, the protective cloth is wrapped more evenly, and then the wrapped cable core 10 enters from one end of the extrusion port 4, and is wrapped with a layer of molten liquid rubber when passing through the extrusion port 4, and then comes out from the other end. At this time, the liquid rubber wrapped on the outer surface of the end of the wrapped cable core 10 begins to cool after leaving the extrusion port 4. At this time, the semi-formed wrapped cable core 10 is removed from one end of the cooling ring 18 The cooling water enters the cooling ring 18 and leaves from one end. At the same time, the water pump 20 draws the cooling water in the water tank 19, so that the cooling water enters the cooling ring 18 through the water inlet pipe 21, circulates in the cooling ring 18, and then flows back into the water tank 19 through the water outlet pipe 22 at the lower end of the cooling ring 18. The repeated flow of water drives the temperature in the cooling ring 18 to cool it down. The cooling ring 18 cools the surface of the semi-formed wrapped cable core 10 passing through the cooling ring 18, so that the liquid rubber solidifies on the surface of the wrapped cable core 10, and the semi-formed wrapped cable core 10 is produced as a finished cable 11. The device cools the finished cable and quickly cools it down and shapes it, so that the traditional heating cable extrusion molding device only cools down from the outside, and the problems of slow cooling speed, slow molding and easy deformation are alleviated. The process of wrapping the fireproof cloth can also be automatically wrapped during the molding process of the finished cable 11, making the production process of pressure-resistant and fire-resistant cables simpler.

[0041] The rubber particles for producing the cable sheath are fed into the feed port 5. At this time, the feed motor 6 drives the powder rod 7 to break up the rubber particles, making the rubber particles entering the mixing tank 2 looser and allowing the rubber particles to be heated more evenly during the heating process. At the same time, the heating copper wire 28 in the heating sleeve 27 on the inner wall of the mixing tank 2 begins to heat up, heating the inside of the mixing tank 2. The heating sleeve 27 surrounding the inner wall of the mixing tank 2 makes the heating more uniform, allowing the mixing tank 2 to heat the rubber particles distributed throughout the interior more evenly, thereby improving the melting speed and melting effect of the rubber particles by the device, making the production of liquid rubber faster, the internal temperature more uniform, and reducing the deformation problem caused by the unevenly heated liquid rubber not fully wrapping the cable core.

[0042] Reference Figure 4 and Figure 5 、 Figure 6 、 Figure 7 、 Figure 8The cooling ring 18 is fixedly connected to the inside of the cooling ring 18. An annular groove 34 is provided on one side of the extrusion port 4. The shape of the mounting ring 24 matches the annular groove 34. A mounting groove 33 is provided in the annular groove 34. A sliding column 31 is fixedly connected to the inside of the mounting ring 24. A sliding plate 36 is slidably connected to the outer surface of the sliding column 31. The size of the sliding plate 36 matches the mounting groove 33. A semicircular limiting groove is provided inside the mounting groove 33. A semicircular limiting block 30 is fixedly connected to the end of the sliding plate 36. The semicircular limiting block 30 matches the semicircular limiting groove. A spring 32 is sleeved on the outside of the sliding column 31. The two ends of the spring 32 are respectively fixedly connected to the mounting ring 24 and the sliding plate 36.

[0043] When the cooling ring 18 needs to be installed or removed, hold the cooling ring 18 so that the mounting ring 24 on one side is aligned with the annular groove 34 on the extrusion port 4, and at the same time align the sliding plate 36 with the mounting groove 33, and then insert the mounting ring 24 into the annular groove 34. At this time, as the mounting ring 24 moves, the inner wall of the mounting groove 33 squeezes the semicircular limit block 30, allowing the semicircular limit block 30 to drive the sliding plate 36 to move along the sliding column 31, so that the sliding plate 36 squeezes the spring 32 to shrink. When the mounting ring 24 is installed, the inner wall of the mounting groove 33 squeezes the semicircular limit block 30, and the semicircular limit block 30 drives the sliding plate 36 to move along the sliding column 31, so that the sliding plate 36 squeezes the spring 32 to shrink. When the semicircular stopper 30 is fully inserted into the annular groove 34, the semicircular stopper 30 is no longer squeezed by the inner wall of the mounting groove 33. At this time, the spring 32 returns to its original position and pushes the sliding plate 36 to drive the semicircular stopper 30 to move into the semicircular stopper groove and resist the semicircular stopper groove, so that the cooling ring 18 is fixed on the extrusion port 4. This makes it easier to disassemble the cooling ring 18 and to clean the extrusion port 4 and the cooling ring 18, and reduces the problem of liquid rubber clogging the extrusion port 4 and the cooling ring 18 and making them difficult to clean.

[0044] Working principle: When producing pressure-resistant fireproof cables, rubber particles for producing cable casings are fed from the feed port 5. At this time, the feed motor 6 drives the powder rod 7 to break up the rubber particles, making the rubber particles entering the mixing tank 2 looser, allowing the rubber particles to be heated more evenly during the heating process. At the same time, the heating copper wire 28 in the heating sleeve 27 on the inner wall of the mixing tank 2 begins to heat up, heating the inside of the mixing tank 2. The heating sleeve 27 surrounding the inner wall of the mixing tank 2 makes the heating more uniform, allowing the mixing tank 2 to heat the rubber particles distributed throughout the interior more evenly, thereby improving the melting speed and melting effect of the device on the rubber particles, making the production of liquid rubber faster and the internal temperature lower. The degree of rubber is more uniform, and the stirring motor 8 drives the stirring rod 25 to rotate, and the stirring rod 25 drives the stirring to stir the rubber raw materials inside the stirring tank 2, and the stirred rubber raw materials are allowed to flow into the inner wall of the pipe 3. At this time, the output motor 23 rotates to drive the auger 29 to rotate, and the liquid rubber made of the rubber raw materials is pushed by the auger 29 to the extrusion port 4 and waits for the fireproof mud to be attached. The cable core 9 is first wrapped with a fireproof cloth to become a wrapped cable core 10. When the end of the wrapped cable core 10 passes through the extrusion port 4, the extrusion port 4 will wrap the liquid rubber raw material on the surface of the wrapped cable core 10. When the rubber raw material is cooled, a rubber shell of the cable is formed, so that the wrapped cable core 10 wrapped with the rubber shell becomes a finished cable.

[0045] The fireproof cloth wrapping of the cable core 9 is carried out by the action of the wrapping motor 13 and the main gear 14 is driven by the main gear 14 to rotate, and the main gear 14 drives the slave gear 15 to rotate, and then drives the wrapping ring 35 to rotate, so that the wrapping ring 35 drives the material roller 16 and the cloth wrapping roller 17 to rotate in a circle, and the protective cloth wrapped on the cloth wrapping roller 17 is wound onto the surface of the fireproof cloth cable core 9 as the cloth wrapping roller 17 rotates, so that it is produced as a wrapped cable core 10. As the fireproof cloth cable core 9 moves toward the extrusion port 4, the wrapping of the protective cloth is more uniform. The wrapped cable core 10 wrapped with the fireproof cloth needs to be coated with rubber on the outer layer, so that the wrapped cable core 10 enters from one end of the extrusion port 4 and is wrapped with a layer of molten liquid rubber when passing through the extrusion port 4, and then comes out from the other end. At this time, the liquid rubber wrapped on the outer surface of the end of the wrapped cable core 10 begins to cool after leaving the extrusion port 4. At this time, it is semi-formed. The wrapped cable core 10 enters the cooling ring 18 from one end of the cooling ring 18 and then leaves from the other end. At the same time, the water pump 20 draws cooling water from the water tank 19, so that it enters the cooling ring 18 through the water inlet pipe 21, circulates in the cooling ring 18, and then flows back into the water tank 19 through the water outlet pipe 22 at the lower end of the cooling ring 18. The repeated flow of water drives the temperature in the cooling ring 18 to cool it down, and the cooling ring 18 cools the surface of the semi-formed wrapped cable core 10 passing through the cooling ring 18, so that the liquid rubber solidifies on the surface of the wrapped cable core 10, so that the semi-formed wrapped cable core 10 is produced as a finished cable 11. The device cools the finished cable and quickly cools it down and shapes it, so that the traditional heating cable extrusion molding device only cools down from the outside, and the problems of slow cooling speed, slow molding and easy deformation are alleviated. It can also allow the process of wrapping the fireproof cloth to be automatically wrapped during the molding process of the finished cable 11, making the production process of pressure-resistant and fire-resistant cables simpler.

[0046] When the cooling ring 18 needs to be installed or removed, hold the cooling ring 18 so that the mounting ring 24 on one side is aligned with the annular groove 34 on the extrusion port 4, and at the same time align the sliding plate 36 with the mounting groove 33, and then insert the mounting ring 24 into the annular groove 34. At this time, as the mounting ring 24 moves, the semicircular limit block 30 on the inner wall of the mounting groove 33 is squeezed, and the semicircular limit block 30 drives the sliding plate 36 to move along the sliding column 31, so that the sliding plate 36 squeezes the spring 32 to shrink. When the mounting ring 2 When the semicircular stopper 30 is fully inserted into the annular groove 34, the semicircular stopper 30 is no longer squeezed by the inner wall of the mounting groove 33. At this time, the spring 32 returns to its original position and pushes the sliding plate 36 to drive the semicircular stopper 30 to move into the semicircular stopper groove and resist the semicircular stopper groove, so that the cooling ring 18 is fixed on the extrusion port 4. This makes it easier to disassemble the cooling ring 18 and to clean the extrusion port 4 and the cooling ring 18, and reduces the problem of liquid rubber clogging the extrusion port 4 and the cooling ring 18 and making them difficult to clean.

[0047] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compression-resistant and fire-resistant cable extrusion molding device, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a stirring cylinder (2), the upper end of the stirring cylinder (2) is fixedly connected to a stirring motor (8), the output end of the stirring motor (8) is fixedly connected to a stirring rod (25), the stirring rod (25) is rotatably connected to the stirring cylinder (2), the outer surface of the stirring rod (25) is fixedly connected to a plurality of stirring blades (26), the lower end of the stirring cylinder (2) is fixedly connected to a pipe (3), the pipe (3) is fixedly connected to the base (1), the outer surface of the base (1) is fixedly connected to an output motor (23), the output end of the output motor (23) passes through the base (1) and is fixedly connected to an auger (29), the auger (29) is rotatably connected to the pipe (3), the end of the pipe (3) is fixedly connected to an extrusion port (4), the inner wall of the extrusion port (4) is slidably provided with a finished cable (11), the end of the finished cable (11) is fixedly connected to a wrapped cable core (10), the end of the wrapped cable core (10) is fixedly connected to an attached fireproof mud cable core (9), and the upper end of the base (1) is provided with a molding structure.

2. The compression-resistant and fire-resistant cable extrusion molding device according to claim 1, characterized in that: The molding structure comprises a cooling ring (18) mounted at the end of the extrusion port (4); the upper end of the base (1) is fixedly connected to a water tank (19); the upper end of the water tank (19) is fixedly connected to a water pump (20); the upper end of the water pump (20) is fixedly connected to a water inlet pipe (21); the end of the water inlet pipe (21) is fixedly connected to the cooling ring (18); the outer surface of the cooling ring (18) is fixedly connected to a water outlet pipe (22); the end of the water outlet pipe (22) is fixedly connected to the water tank (19).

3. The compression-resistant and fire-resistant cable extrusion molding device according to claim 2, characterized in that: The base (1) is fixedly connected to a vertical plate (12), one side of the vertical plate (12) is rotatably connected to a wrapping ring (35), the upper and lower ends of the wrapping ring (35) are fixedly connected to a material roller (16), and the end of the material roller (16) is rotatably connected to a cloth wrapping roller (17).

4. The compression-resistant and fire-resistant cable extrusion molding device according to claim 3, characterized in that: A wrapping motor (13) is fixedly connected to one side of the vertical plate (12), and a main gear (14) is rotatably connected to the other side of the vertical plate (12). The output end of the wrapping motor (13) passes through the vertical plate (12) and is fixedly connected to the main gear (14). The outer wall of the wrapping ring (35) is fixedly connected to a slave gear (15), and the slave gear (15) is meshed with the main gear (14).

5. The compression-resistant and fire-resistant cable extrusion molding device according to claim 2, characterized in that: The upper end of the mixing cylinder (2) is fixedly connected to a feed port (5), the outer surface of the feed port (5) is fixedly connected to a feed motor (6), the output end of the feed motor (6) is fixedly connected to a distribution rod (7), and the distribution rod (7) is rotatably connected to the feed port (5).

6. The compression-resistant and fire-resistant cable extrusion molding device according to claim 5, characterized in that: A heating jacket (27) is fixedly connected to the inner wall of the mixing tank (2), and a plurality of heating copper wires (28) are fixedly connected inside the heating jacket (27).

7. The compression-resistant and fire-resistant cable extrusion molding device according to claim 2, characterized in that: A mounting ring (24) is fixedly connected to the inner side of the cooling ring (18), an annular groove (34) is provided on one side of the extrusion port (4), the shape of the mounting ring (24) is adapted to the annular groove (34), a mounting groove (33) is provided in the annular groove (34), a sliding column (31) is fixedly connected to the inside of the mounting ring (24), a sliding plate (36) is slidably connected to the outer surface of the sliding column (31), and the size of the sliding plate (36) is adapted to the mounting groove (33).

8. The compression-resistant and fire-resistant cable extrusion molding device according to claim 7, characterized in that: A semicircular limiting groove is provided inside the mounting groove (33), a semicircular limiting block (30) is fixedly connected to the end of the sliding plate (36), the semicircular limiting block (30) is adapted to the semicircular limiting groove, a spring (32) is sleeved on the outside of the sliding column (31), and two ends of the spring (32) are fixedly connected to the mounting ring (24) and the sliding plate (36), respectively.

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