A cable sheath extrusion device and extrusion method thereof

Abstract

The present invention provides a cable sheath extrusion device and an extrusion method thereof, belonging to the technical field of cable sheaths. The cable sheath extrusion device comprises a base, an extrusion mechanism and a cleaning mechanism. A support is installed on the surface of the base, a loading bin is installed on the surface of the support, and the extrusion mechanism is installed on the surface of the base. The extrusion mechanism comprises a feed pipe, a molding box and an extrusion cavity, and the feed pipe is installed in the inner cavity of the support. The present invention sets an extrusion mechanism, and a first motor can drive the conveying shaft and the conveying blade to rotate, and the feed pipe is synchronously heated by a heating pipe to melt the raw material, and the molten raw material is filtered through a filter plate, and then the raw material is extruded through the extrusion cavity and coated on the surface of the cable to realize the extrusion of the cable sheath; at the same time, when the conveying shaft rotates, it can synchronously drive the two grinding rollers to rotate, and drive the grinding rollers to rotate synchronously through the meshing first gear and the first gear ring, grind the unmelted impurities on the surface of the filter plate, and ensure the quality of the cable sheath.

Description

Technical Field

[0001] The invention relates to the technical field of cable sheaths, and in particular to a cable sheath extrusion device and an extrusion method thereof. Background Art

[0002] The cable sheath is the insulation layer of the cable and is a very important part of the cable. Its most basic function is to isolate the conductor inside the cable from the external environment and prevent current leakage. It can prevent current from passing through the outside of the cable, thereby ensuring that electricity or signals can be safely and effectively transmitted in the conductor; it separates the various conductors of the cable to prevent short circuits between different conductors, ensuring that each conductor can transmit signals or currents independently, and it can also provide a certain mechanical strength to protect the internal conductor from external forces, such as extrusion, bending or other mechanical stresses, and can resist adverse factors such as chemical corrosion, moisture, ultraviolet rays and temperature changes in the external environment, thereby extending the service life of the cable and increasing the safety of the cable.

[0003] Existing cable sheath extrusion devices usually use an extruder to melt the raw materials and coat them on the cable surface. However, there may be some unmelted impurities in the heated raw materials. If they are not removed in time, the quality of the cable sheath will be affected and the quality of the finished cable will be reduced. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a cable sheath extrusion device and an extrusion method thereof that overcome the above technical problems or at least partially solve the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides a cable sheath extrusion device, comprising a base, an extrusion mechanism and a cleaning mechanism, wherein a support is installed on the surface of the base, a loading bin is installed on the surface of the support, the extrusion mechanism is installed on the surface of the base and is used to extrude plastic, and the extrusion mechanism comprises:

[0007] A material delivery pipe, which is installed in the inner cavity of the support and is connected to the upper bin;

[0008] A molding box, the molding box being mounted on the front of the base;

[0009] An extrusion cavity, wherein the extrusion cavity is provided in the inner cavity of the molding box, a feeding pipe is connected between the extrusion cavity and the feeding pipe, and a cable channel is provided in the inner cavity of the molding box for inserting the cable;

[0010] The side wall of the forming box is equipped with a cleaning mechanism for cleaning the cable. The cleaning mechanism includes a cleaning roller, a brush and a nozzle. The side wall of the forming box is equipped with a cleaning box. The inner cavity of the cleaning box is symmetrically equipped with a cleaning roller. The side wall of the cleaning roller is equipped with a brush. The inner cavity of the cleaning box is equipped with a nozzle. The side wall of the nozzle is provided with a plurality of first spray holes.

[0011] In a preferred embodiment, a conveying shaft is rotatably installed in the inner cavity of the conveying pipe, conveying blades are fixedly installed on the surface of the conveying shaft, a first motor is fixedly installed on the side wall of the support, the output end of the first motor is fixedly connected to one end of the conveying shaft, and a heating tube is wrapped around the surface of the conveying pipe for melting the raw materials.

[0012] In a preferred embodiment, a filter plate is installed in the inner cavity of the feed pipe for filtering unmelted raw materials and impurities, a rotating shaft is symmetrically installed on the side wall of the conveying shaft, a grinding roller is fixedly installed on the surface of the rotating shaft for grinding unmelted impurities on the surface of the filter plate, a first gear is fixedly installed at one end of the rotating shaft, a first gear ring is fixedly installed on the surface of the filter plate, and the first gear ring is meshed with the first gear.

[0013] In a preferred solution, a second motor is fixedly mounted on the side wall of the cleaning box, an output end of the second motor is fixedly connected to one of the cleaning rollers, a second gear ring is rotatably mounted on the side wall of the forming box, a second gear is fixedly mounted on one end of the two cleaning rollers, both of the second gears are meshed with the second gear ring, a cleaning sponge is mounted in the inner cavity of the second gear ring, and a discharge bin is connected to the lower part of the cleaning box.

[0014] In a preferred embodiment, a reagent box is installed on the surface of the cleaning box for storing cleaning agents, a liquid collection cylinder is symmetrically installed on the side wall of the cleaning box, a first one-way valve and a second one-way valve are installed on the surface of the liquid collection cylinder, an infusion tube is connected between the first one-way valve and the reagent box, and an infusion tube is connected between the second one-way valve and the nozzle, a piston is slidably installed in the inner cavity of the liquid collection cylinder, one end of one of the cleaning rollers is fixedly installed with a rotating wheel, a driving frame is slidably installed on the side wall of the cleaning box, a slider is fixedly installed on the side wall of the driving frame, and the slider is slidably installed on the side wall of the cleaning box, an eccentric shaft is fixedly installed on the surface of the rotating wheel, the driving frame is sleeved on the surface of the eccentric shaft, and a connecting rod is connected between the driving frame and the piston.

[0015] In a preferred embodiment, a cooling mechanism is installed on the right side of the molding box for cooling the coated cable. The cooling mechanism includes a water tank, a first water tank and a second water tank. The water tank is installed on the right side of the molding box. The inner cavity of the water tank is provided with a first water tank and a second water tank for storing hot water and cold water respectively. A plurality of guide wheels are rotatably installed in the inner cavity of the water tank.

[0016] In a preferred embodiment, a heat dissipation frame is installed in the inner cavity of the second water tank, a plurality of water channels are opened in the inner cavity of the heat dissipation frame, a plurality of second spray holes are opened in the inner wall of the heat dissipation frame, the second spray holes are communicated with the water channels, the second spray holes are opened at an angle, a radiator is installed on the side wall of the water tank, a water pump is installed in the inner cavity of the second water tank, the water inlet end of the water pump is connected to the second water tank, the water outlet end of the water pump is connected to the radiator, and the other end of the radiator is connected to the heat dissipation frame.

[0017] In a preferred embodiment, a heat exchange mechanism is installed on the surface of the base for recovering the heat of melting the raw materials. The heat exchange mechanism includes a copper tube and a fan. A heat exchange frame is installed on the surface of the support. A copper tube is installed in the inner cavity of the heat exchange frame. A fan is installed on the surface of the support. The air inlet end of the fan is connected to one end of the copper tube.

[0018] In a preferred embodiment, a preheating chamber is provided in the inner cavity of the forming box, and an air pipe is connected to the air outlet end of the fan. A plurality of third spray holes are provided on the side wall of the preheating chamber for preheating the cable. A plurality of aeration tubes are installed in the inner cavity of the first water tank, and a plurality of fourth spray holes are provided on the surface of the aeration tubes. A plurality of aeration tubes are connected to the air outlet end of the fan via air pipes.

[0019] A cable sheath extrusion method, applicable to the above-mentioned cable sheath extrusion device, comprises the following steps:

[0020] S1: Cleaning; the cable to be coated with the sheath is sent into the cable channel through the cleaning box, and the cleaning roller is driven by the second motor to rotate to clean the impurities on the cable surface; at the same time, the cleaning agent in the reagent box is sent into the spray pipe and sprayed from the first spray hole to the cable surface, and the oil on the cable surface is cleaned with a brush, and the water stains on the cable surface can be wiped off synchronously with the cleaning sponge;

[0021] S2: Extrusion; the cleaned cable is passed through the cable channel, and the conveying blade is driven to rotate by the first motor to push the raw material to move in the inner cavity of the conveying pipe, and the melted raw material is filtered through the filter plate, and then the raw material is extruded through the extrusion cavity and coated on the surface of the cable to realize the extrusion of the cable sheath;

[0022] S3: Cooling; the coated cable is passed into the first water tank and the second water tank in sequence to cool it, and hot water is placed in the first water tank to pre-cool it, and the cooling water is pumped into the radiator by a water pump to dissipate heat. The cooling water after heat dissipation is sent to the waterway and sprayed onto the cable surface through the second spray hole opened obliquely, while dissipating heat, impurities on the cable surface can also be cleaned;

[0023] S4: heat exchange; by arranging copper tubes in the inner cavity of the heat exchange frame, the heat of the heating tube is transferred to the air inside the copper tube and sent into the preheating chamber to preheat the cable to be coated with the sheath, and another part of the hot air is sent into the aeration pipe to heat the water in the first water tank.

[0024] The present invention provides a cable sheath extrusion device and an extrusion method thereof, and the beneficial effects thereof include:

[0025] 1. By setting up an extrusion mechanism, the conveying shaft and the conveying blade can be driven to rotate by the first motor, and the conveying pipe can be synchronously heated by the heating pipe to melt the raw materials, and the molten raw materials are filtered through the filter plate. Then the raw materials are extruded through the extrusion cavity and coated on the surface of the cable to realize the extrusion of the cable sheath; at the same time, when the conveying shaft rotates, the two grinding rollers can be driven to rotate synchronously, and the grinding rollers are driven to rotate synchronously by the meshing first gear and the first gear ring to grind the unmelted impurities on the surface of the filter plate to ensure the quality of the cable sheath.

[0026] 2. By setting up a cleaning mechanism, the cleaning roller can be driven to rotate by the second motor to clean the impurities on the cable surface; at the same time, the cleaning roller drives the rotating wheel to rotate synchronously, drives the piston to move back and forth, so that the first one-way valve and the second one-way valve are alternately connected, and the cleaning agent in the reagent box is sent into the spray pipe, and sprayed from the first spray hole to the cable surface, and the oil on the cable surface is cleaned with a brush to prevent the extruded sheath from adhering poorly due to the presence of oil on the cable surface, causing the sheath to slip or fall off during the cooling process; in addition, the water stains on the cable surface can be wiped off synchronously by a cleaning sponge.

[0027] 3. By setting up a cooling mechanism and setting hot water in the first water tank for pre-cooling, the temperature of the sheath can be gradually reduced, thereby reducing the temperature difference between the inside and the outside and reducing the generation of internal stress. Hot water cooling can allow the sheath material to shrink slowly under milder conditions to avoid cracks or deformation caused by sudden cooling. The cable is then passed through the heat dissipation frame. While dissipating the heat, impurities on the surface of the cable can be cleaned, and the vortex generated by the cooling water injection can improve the fluidity of the cooling water in the second water tank and improve the heat dissipation effect.

[0028] 4. By setting up a heat exchange mechanism and arranging a copper tube in the inner cavity of the heat exchange frame, the heat of the heating tube is transferred to the air inside the copper tube by utilizing the high thermal conductivity of copper. The hot air in the copper tube is extracted by a fan and sent into the preheating chamber to preheat the cable to be coated with the sheath, thereby increasing its surface temperature and allowing the sheath material to adhere better to the core wire during coating, thereby helping to soften the coating material, increase the fusion between the interfaces, reduce air gaps or stratification, and thus improve the coating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those skilled in the art, other relevant drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 is a front perspective view provided by an embodiment of the present invention;

[0031] Figure 2 A side perspective view of an embodiment of the present invention is provided;

[0032] Figure 3 A top view of an embodiment of the present invention;

[0033] Figure 4 A side cross-sectional view of a support provided for an embodiment of the present invention;

[0034] Figure 5 A cross-sectional view of a feed pipe provided in an embodiment of the present invention;

[0035] Figure 6 The embodiments of the present invention provide Figure 5 Enlarged view of point A in the middle;

[0036] Figure 7 A cross-sectional view of a molding box provided in an embodiment of the present invention;

[0037] Figure 8 A side cross-sectional view of a cleaning tank provided for an embodiment of the present invention;

[0038] Fig. 9 The embodiments of the present invention provide Figure 8 Enlarged view of point B in the middle;

[0039] Fig.10 A cross-sectional view of a cleaning box provided for an embodiment of the present invention;

[0040] Fig.11 A three-dimensional diagram of a cleaning box provided in an embodiment of the present invention;

[0041] Fig.12 A cross-sectional view of a heat dissipation frame provided in an embodiment of the present invention.

[0042] In the figure: 1, base; 2, support; 3, loading bin; 4, extrusion mechanism; 401, feeding pipe; 402, conveying shaft; 403, conveying blade; 404, first motor; 405, heating pipe; 406, feeding pipe; 407, forming box; 408, extrusion chamber; 409, cable channel; 410, filter plate; 411, rotating shaft; 412, grinding roller; 413, first gear; 414, first gear ring; 5, cleaning mechanism; 501, cleaning box; 502, cleaning roller; 503, brush; 504, second motor; 505, second gear ring; 506, second gear; 507, cleaning sponge; 508, discharge bin; 509, spray pipe; 510, The first spray hole; 511, reagent box; 512, liquid collection cylinder; 513, first one-way valve; 514, second one-way valve; 515, piston; 516, rotating wheel; 517, driving frame; 518, sliding block; 519, eccentric shaft; 520, connecting rod; 6, cooling mechanism; 601, water tank; 602, first water tank; 603, second water tank; 604, guide wheel; 605, heat dissipation frame; 606, water channel; 607, second spray hole; 608, radiator; 609, water pump; 7, heat exchange mechanism; 701, heat exchange frame; 702, copper tube; 703, fan; 704, preheating chamber; 705, third spray hole; 706, aeration pipe; 707, fourth spray hole. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Reference Figure 1-Figure 12As shown, the present invention provides a technical solution: a cable sheath extrusion device, including a base 1, an extrusion mechanism 4 and a cleaning mechanism 5, a support 2 is installed on the surface of the base 1, a loading bin 3 is installed on the surface of the support 2 for storing plastic particles, the extrusion mechanism 4 is installed on the surface of the base 1 for extruding plastic, the extrusion mechanism 4 includes a feed pipe 401, a molding box 407 and an extrusion cavity 408, the feed pipe 401 is installed in the inner cavity of the support 2 for conveying raw materials, the feed pipe 401 is connected to the loading bin 3, and the inner cavity of the feed pipe 401 is rotated A conveying shaft 402 is dynamically installed, and a conveying blade 403 is fixedly installed on the surface of the conveying shaft 402. A first motor 404 is fixedly installed on the side wall of the support 2. The output end of the first motor 404 is fixedly connected to one end of the conveying shaft 402. A heating tube 405 is wound around the surface of the conveying pipe 401 for melting the raw materials. The first motor 404 can drive the conveying shaft 402 and the conveying blade 403 to rotate, thereby pushing the raw materials to move in the inner cavity of the conveying pipe 401, and the conveying pipe 401 is synchronously heated by the heating tube 405 to melt the raw materials.

[0045] Reference Figure 1-Figure 7 As shown, in a preferred embodiment, a molding box 407 is installed at the front of the base 1, an extrusion cavity 408 is provided in the inner cavity of the molding box 407 for extruding raw materials, a feed pipe 406 is connected between the extrusion cavity 408 and the feed pipe 401, a cable channel 409 is provided in the inner cavity of the molding box 407 for inserting cables, a filter plate 410 is installed in the inner cavity of the feed pipe 406 for filtering unmelted raw materials and impurities, a rotating shaft 411 is symmetrically rotated and installed on the side wall of the conveying shaft 402, and a grinding roller 412 is fixedly installed on the surface of the rotating shaft 411, Used to grind unmelted impurities on the surface of the filter plate 410, a first gear 413 is fixedly installed at one end of the rotating shaft 411, and a first gear ring 414 is fixedly installed on the surface of the filter plate 410, the first gear ring 414 is meshed with the first gear 413, when the first motor 404 drives the conveying shaft 402 to rotate, it can synchronously drive the two grinding rollers 412 to rotate, and drive the grinding rollers 412 to rotate synchronously through the meshing first gear 413 and the first gear ring 414, so as to grind the unmelted impurities on the surface of the filter plate 410 and ensure the quality of the cable sheath.

[0046] In a preferred embodiment, when in use, the cable is passed through the cable channel 409, and the first motor 404 can drive the conveying shaft 402 and the conveying blade 403 to rotate, pushing the raw material to move in the inner cavity of the conveying pipe 401, and the conveying pipe 401 is synchronously heated by the heating pipe 405 to melt the raw material, and the molten raw material is filtered through the filter plate 410, and then the raw material is extruded through the extrusion cavity 408 and coated on the surface of the cable to achieve extrusion of the cable sheath; at the same time, when the conveying shaft 402 rotates, it can synchronously drive the two grinding rollers 412 to rotate, and drive the grinding rollers 412 to rotate synchronously through the meshing first gear 413 and the first gear ring 414, so as to grind the unmelted impurities on the surface of the filter plate 410 to ensure the quality of the cable sheath.

[0047] Reference Figure 1-Figure 10 As shown, in a preferred embodiment, a cleaning mechanism 5 is installed on the side wall of the molding box 407 for cleaning the cable to prevent the extruded sheath from poorly adhering due to the presence of oil on the cable surface, causing the sheath to slip or fall off during the cooling process. The cleaning mechanism 5 includes a cleaning roller 502, a brush 503 and a nozzle 509. A cleaning box 501 is installed on the side wall of the molding box 407. The cleaning roller 502 is symmetrically rotated on the inner cavity of the cleaning box 501. The brush 503 is installed on the side wall of the cleaning roller 502 for cleaning impurities on the cable surface to prevent impurities from being embedded in the sheath, resulting in bulges, bubbles or uneven thickness on the surface of the sheath. A second motor 504 is fixedly installed on the side wall of the cleaning box 501. The output end of the second motor 504 is fixedly connected to one of the cleaning rollers 502, and a second gear ring 505 is rotatably installed on the side wall of the forming box 407. A second gear 506 is fixedly installed at one end of the two cleaning rollers 502, and the two second gears 506 are meshed with the second gear ring 505. A cleaning sponge 507 is installed in the inner cavity of the second gear ring 505. The second motor 504 can drive one of the cleaning rollers 502 to rotate, and the second gear 506 and the second gear ring 505 can drive the other cleaning roller 502 to rotate synchronously to clean impurities on the surface of the cable. At the same time, the water stains on the surface of the cable are wiped off by the cleaning sponge 507. The lower part of the cleaning box 501 is connected to a discharge bin 508 for discharging impurities.

[0048] Reference Figure 1-Figure 10As shown, in a preferred embodiment, a nozzle 509 is installed in the inner cavity of the cleaning box 501, and a plurality of first spray holes 510 are opened in the side wall of the nozzle 509. A reagent box 511 is installed on the surface of the cleaning box 501 for storing cleaning agents. A liquid collection cylinder 512 is symmetrically installed on the side wall of the cleaning box 501. A first one-way valve 513 and a second one-way valve 514 are installed on the surface of the liquid collection cylinder 512. The first one-way valve 513 is unidirectionally connected to the inner cavity direction of the liquid collection cylinder 512 for liquid inlet, and the second one-way valve 514 is unidirectionally connected to the outer wall direction of the liquid collection cylinder 512 for liquid outlet. An infusion tube is connected between the first one-way valve 513 and the reagent box 511, and the second one-way valve 514 is unidirectionally connected to the outer wall direction of the liquid collection cylinder 512 for liquid outlet. An infusion tube is connected between the valve 514 and the nozzle 509, a piston 515 is slidably installed in the inner cavity of the liquid taking cylinder 512, a rotating wheel 516 is fixedly installed at one end of one of the cleaning rollers 502, a driving frame 517 is slidably installed on the side wall of the cleaning box 501, a slider 518 is fixedly installed on the side wall of the driving frame 517, the slider 518 is slidably installed on the side wall of the cleaning box 501, an eccentric shaft 519 is fixedly installed on the surface of the rotating wheel 516, the eccentric shaft 519 is installed at a non-center position of the rotating wheel 516, and is used to drive the driving frame 517 to move, the driving frame 517 is sleeved on the surface of the eccentric shaft 519, and a connecting rod 520 is connected between the driving frame 517 and the piston 515.

[0049] In a preferred embodiment, when in use, the cable to be coated with the sheath is sent into the cable channel 409 through the cleaning box 501, and one of the cleaning rollers 502 can be driven to rotate by the second motor 504, and the other cleaning roller 502 is driven to rotate synchronously by the second gear 506 and the second gear ring 505 to clean the impurities on the cable surface; at the same time, the cleaning roller 502 drives the rotating wheel 516 to rotate synchronously, drives the driving frame 517 to move up and down through the eccentric shaft 519, and drives the piston 515 to reciprocate and lift through the connecting rod 520, so that the first one-way valve 513 and the second one-way valve 514 are alternately connected, and the cleaning agent in the reagent box 511 is sent into the nozzle 509 and sprayed onto the cable surface from the first spray hole 510, and the oil on the cable surface is cleaned with the brush 503 to prevent the extruded sheath from poorly adhering due to the presence of oil on the cable surface, so that the sheath slips or falls off during the cooling process; in addition, the water stains on the cable surface can be synchronously wiped off by the cleaning sponge 507.

[0050] Reference Figure 1-Figure 12As shown, in a preferred embodiment, a cooling mechanism 6 is installed on the right side of the molding box 407 for cooling the coated cable. The cooling mechanism 6 includes a water tank 601, a first water tank 602 and a second water tank 603. The water tank 601 is installed on the right side of the molding box 407. The inner cavity of the water tank 601 is provided with a first water tank 602 and a second water tank 603 for storing hot water and cold water respectively. A plurality of guide wheels 604 are rotatably installed in the inner cavity of the water tank 601. The coated cable is sequentially passed into the first water tank 602 and the second water tank 603 through the guide wheels 604 to be cooled. By setting hot water in the first water tank 602 for pre-cooling, the temperature of the sheath can be gradually reduced, thereby reducing the temperature difference between the inside and the outside, and reducing the generation of internal stress. Hot water cooling can allow the sheath material to shrink slowly under milder conditions to avoid cracks or deformation caused by sudden cooling.

[0051] Reference Figure 1-Figure 12 As shown, in a preferred embodiment, a heat dissipation frame 605 is installed in the inner cavity of the second water tank 603, a plurality of water channels 606 are opened in the inner cavity of the heat dissipation frame 605, a plurality of second spray holes 607 are opened on the inner wall of the heat dissipation frame 605, the second spray holes 607 are connected with the water channels 606, the second spray holes 607 are opened at an angle, a radiator 608 is installed on the side wall of the water tank 601 for dissipating the cooling water, a water pump 609 is installed in the inner cavity of the second water tank 603 for circulating the cooling water, the water inlet end of the water pump 609 is connected with the second water tank 603, the water outlet end of the water pump 609 is connected with the radiator 608, and the other end of the radiator 608 is connected with the heat dissipation frame 605.

[0052] In a preferred embodiment, when in use, the coated cable is passed through the guide wheel 604 into the first water tank 602 and the second water tank 603 in sequence to be cooled, and hot water is set in the first water tank 602 to pre-cool it, so that the temperature of the sheath can be gradually reduced, thereby reducing the temperature difference between the inside and the outside, and reducing the generation of internal stress. Hot water cooling can allow the sheath material to shrink slowly under milder conditions to avoid cracks or deformation caused by sudden cooling. The cable is then passed through the heat dissipation frame 605, and the cooling water is pumped into the radiator 608 by the water pump 609 for heat dissipation. The cooling water that has completed heat dissipation is sent to the water channel 606 and sprayed onto the cable surface through the second spray hole 607 opened obliquely. While dissipating heat, impurities on the cable surface can also be cleaned, and the vortex generated by the cooling water injection can improve the fluidity of the cooling water in the second water tank 603 and improve the heat dissipation effect.

[0053] Reference Figure 1-Figure 12As shown, in a preferred embodiment, a heat exchange mechanism 7 is installed on the surface of the base 1 for recovering the heat of melting the raw materials. The heat exchange mechanism 7 includes a copper tube 702 and a fan 703. A heat exchange frame 701 is installed on the surface of the support 2. The copper tube 702 is installed in the inner cavity of the heat exchange frame 701. By arranging the copper tube 702 in the inner cavity of the heat exchange frame 701 and utilizing the high thermal conductivity of copper, the heat of the heating tube 405 is transferred to the air inside the copper tube 702. A fan 703 is installed on the surface of the support 2. The air inlet end of the fan 703 is connected to one end of the copper tube 702. The air in the copper tube 702 can flow through the fan 703 for easy use.

[0054] Reference Figure 1-Figure 12 As shown, in a preferred embodiment, the inner cavity of the molding box 407 is provided with a preheating cavity 704, which is used to preheat the cable to be coated with the sheath, increase its surface temperature, so that the sheath material can better adhere to the core wire during coating, help soften the coating material, increase the fusion between the interfaces, reduce the air gap or stratification phenomenon, and thus improve the coating quality. The preheating cavity 704 is connected to the air outlet end of the fan 703 through an air pipe, and the side wall of the preheating cavity 704 is provided with a plurality of third spray holes 705 for preheating the cable. The cable is preheated, and a plurality of aeration tubes 706 are installed in the inner cavity of the first water tank 602. A plurality of fourth spray holes 707 are opened on the surface of the aeration tubes 706. The aeration tubes 706 are connected to the air outlet of the fan 703 via air pipes. A portion of the hot air is sent into the aeration tubes 706 and sprayed from the fourth spray holes 707 to the hot water in the first water tank 602, which can increase the fluidity of the water in the first water tank 602 and improve the cold water efficiency. At the same time, the water in the first water tank 602 can also be heated to maintain the water temperature.

[0055] In a preferred embodiment, when in use, a copper tube 702 is arranged in the inner cavity of the heat exchange frame 701, and the high thermal conductivity of copper is utilized to transfer the heat of the heating tube 405 to the air inside the copper tube 702, and the hot air in the copper tube 702 is extracted by the fan 703 and sent to the preheating chamber 704, and sprayed to the surface of the cable through the third spray hole 705, so as to preheat the cable to be coated with the sheath, increase its surface temperature, and enable the sheath material to better adhere to the core wire during coating, which helps to soften the coating material, increase the fusion between the interfaces, reduce air gaps or stratification, and thus improve the coating quality. At the same time, a part of the hot air is sent to the aeration tube 706 and sprayed to the hot water in the first water tank 602 by the fourth spray hole 707, which can increase the fluidity of the water in the first water tank 602, improve the cold water efficiency, and heat the water in the first water tank 602 to maintain the water temperature.

[0056] A cable sheath extrusion method, applicable to a cable sheath extrusion device, comprises the following steps:

[0057] S1: cleaning; the cable to be coated with the sheath is sent into the cable channel 409 through the cleaning box 501, and the cleaning roller 502 is driven to rotate by the second motor 504 to clean the impurities on the cable surface; at the same time, the cleaning agent in the reagent box 511 is sent into the nozzle 509 and sprayed onto the cable surface from the first spray hole 510, and the oil on the cable surface is cleaned with the brush 503, and the water stains on the cable surface can be wiped off synchronously by the cleaning sponge 507;

[0058] S2: Extrusion; the cleaned cable is passed through the cable channel 409, and the conveying blade 403 is driven to rotate by the first motor 404, so as to push the raw material to move in the inner cavity of the conveying pipe 401, and the melted raw material is filtered by the filter plate 410, and then the raw material is extruded through the extrusion cavity 408 and coated on the surface of the cable to realize the extrusion of the cable sheath;

[0059] S3: Cooling; the coated cable is passed into the first water tank 602 and the second water tank 603 in sequence to be cooled, and hot water is placed in the first water tank 602 to pre-cool it, and the cooling water is pumped into the radiator 608 by the water pump 609 to dissipate heat, and the cooling water after heat dissipation is sent to the water channel 606 and sprayed onto the cable surface through the second spray hole 607 opened obliquely, while dissipating heat, impurities on the cable surface can also be cleaned;

[0060] S4: heat exchange; by arranging the copper tube 702 in the inner cavity of the heat exchange frame 701, the heat of the heating tube 405 is transferred to the air inside the copper tube 702 and sent into the preheating chamber 704 to preheat the cable to be coated with the sheath, and another part of the hot air is sent into the aeration tube 706 to heat the water in the first water tank 602.

[0061] Specifically, the working principle of the cable sheath extrusion device is as follows: when in use, the cable to be coated with the sheath is sent into the cable channel 409 through the cleaning box 501, and one of the cleaning rollers 502 can be driven to rotate by the second motor 504, and the other cleaning roller 502 is driven to rotate synchronously by the second gear 506 and the second gear ring 505 to clean the impurities on the surface of the cable; at the same time, the cleaning roller 502 drives the rotating wheel 516 to rotate synchronously, and drives the driving frame 517 to move up and down through the eccentric shaft 519, and The rod 520 drives the piston 515 to move up and down reciprocatingly, so that the first one-way valve 513 and the second one-way valve 514 are alternately connected, and the cleaning agent in the reagent box 511 is sent into the nozzle 509 and sprayed onto the cable surface from the first spray hole 510, and the oil on the cable surface is cleaned with the brush 503 to prevent the extruded sheath from poorly adhering due to the presence of oil on the cable surface, causing the sheath to slip or fall off during the cooling process; in addition, the water stains on the cable surface can be synchronously wiped off by the cleaning sponge 507.

[0062] Subsequently, the cable is passed through the cable channel 409, and the first motor 404 can drive the conveying shaft 402 and the conveying blade 403 to rotate, thereby pushing the raw material to move in the inner cavity of the conveying pipe 401, and the conveying pipe 401 is synchronously heated by the heating pipe 405 to melt the raw material, and the molten raw material is filtered through the filter plate 410, and then the raw material is extruded through the extrusion cavity 408 and coated on the surface of the cable to achieve the extrusion of the cable sheath; at the same time, when the conveying shaft 402 rotates, it can synchronously drive the two grinding rollers 412 to rotate, and drive the grinding rollers 412 to rotate synchronously through the meshing first gear 413 and the first gear ring 414, so as to grind the unmelted impurities on the surface of the filter plate 410 to ensure the quality of the cable sheath.

[0063] Then, the coated cable is passed through the guide wheel 604 into the first water tank 602 and the second water tank 603 in sequence for cooling. By setting hot water in the first water tank 602 for pre-cooling, the temperature of the sheath can be gradually reduced, thereby reducing the temperature difference between the inside and the outside and reducing the generation of internal stress. Hot water cooling can allow the sheath material to shrink slowly under milder conditions to avoid cracks or deformation caused by sudden cooling. The cable is then passed through the heat dissipation frame 605, and the cooling water is pumped into the radiator 608 by the water pump 609 for heat dissipation. The cooling water after heat dissipation is sent to the water channel 606 and sprayed onto the cable surface through the second spray hole 607 opened obliquely. While dissipating the heat, impurities on the cable surface can also be cleaned, and the vortex generated by the cooling water spray can improve the fluidity of the cooling water in the second water tank 603 and improve the heat dissipation effect.

[0064] By arranging the copper tube 702 in the inner cavity of the heat exchange frame 701, the high thermal conductivity of copper is utilized to transfer the heat of the heating tube 405 to the air inside the copper tube 702, and the hot air in the copper tube 702 is extracted by the fan 703 and sent to the preheating chamber 704, and sprayed to the surface of the cable through the third spray hole 705, so as to preheat the cable to be coated with the sheath, increase its surface temperature, and enable the sheath material to adhere better to the core wire during coating, which helps to soften the coating material, increase the fusion between the interfaces, reduce air gaps or stratification, and thus improve the coating quality. At the same time, a part of the hot air is sent to the aeration tube 706 and sprayed to the hot water in the first water tank 602 through the fourth spray hole 707, which can increase the fluidity of the water in the first water tank 602, improve the cold water efficiency, and heat the water in the first water tank 602 to maintain the water temperature.

[0065] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable sheath extrusion device, characterized in that: The invention comprises a base (1), an extrusion mechanism (4) and a cleaning mechanism (5); a support (2) is mounted on the surface of the base (1); a loading bin (3) is mounted on the surface of the support (2); the extrusion mechanism (4) is mounted on the surface of the base (1) and is used to extrude plastic; the extrusion mechanism (4) comprises: A material delivery pipe (401), the material delivery pipe (401) being installed in the inner cavity of the support (2), the material delivery pipe (401) being in communication with the upper material bin (3); A molding box (407), wherein the molding box (407) is installed at the front of the base (1); An extrusion cavity (408), wherein the extrusion cavity (408) is provided in the inner cavity of the molding box (407), a feed pipe (406) is connected between the extrusion cavity (408) and the feed pipe (401), and a cable channel (409) is provided in the inner cavity of the molding box (407) for inserting a cable; A cleaning mechanism (5) is installed on the side wall of the molding box (407) for cleaning the cable. The cleaning mechanism (5) comprises a cleaning roller (502), a brush (503) and a nozzle (509). A cleaning box (501) is installed on the side wall of the molding box (407). A cleaning roller (502) is symmetrically installed in the inner cavity of the cleaning box (501). A brush (503) is installed on the side wall of the cleaning roller (502). A nozzle (509) is installed in the inner cavity of the cleaning box (501). A plurality of first nozzle holes (510) are provided on the side wall of the nozzle (509). A conveying shaft (402) is rotatably mounted in the inner cavity of the conveying pipe (401), a conveying blade (403) is fixedly mounted on the surface of the conveying shaft (402), a first motor (404) is fixedly mounted on the side wall of the support (2), an output end of the first motor (404) is fixedly connected to one end of the conveying shaft (402), and a heating tube (405) is wound around the surface of the conveying pipe (401) for melting raw materials; The inner cavity of the feed tube (406) is provided with a filter plate (410) for filtering unmelted raw materials and impurities; a rotating shaft (411) is symmetrically rotatably provided on the side wall of the conveying shaft (402); a grinding roller (412) is fixedly provided on the surface of the rotating shaft (411) for grinding unmelted impurities on the surface of the filter plate (410); a first gear (413) is fixedly provided on one end of the rotating shaft (411); a first gear ring (414) is fixedly provided on the surface of the filter plate (410); the first gear ring (414) is meshed with the first gear (413); A second motor (504) is fixedly mounted on the side wall of the cleaning box (501); an output end of the second motor (504) is fixedly connected to one of the cleaning rollers (502); a second gear ring (505) is rotatably mounted on the side wall of the molding box (407); a second gear (506) is fixedly mounted on one end of each of the two cleaning rollers (502); the two second gears (506) are meshed with the second gear ring (505); a cleaning sponge (507) is mounted in the inner cavity of the second gear ring (505); and a discharge bin (508) is connected to the lower portion of the cleaning box (501); A reagent box (511) is installed on the surface of the cleaning box (501) for storing cleaning agents. A liquid collection cylinder (512) is symmetrically installed on the side wall of the cleaning box (501). A first one-way valve (513) and a second one-way valve (514) are installed on the surface of the liquid collection cylinder (512). An infusion tube is connected between the first one-way valve (513) and the reagent box (511), and an infusion tube is connected between the second one-way valve (514) and the nozzle (509). A piston (515) is slidably installed in the inner cavity of the liquid collection cylinder (512), one of which is A rotating wheel (516) is fixedly mounted on one end of the cleaning roller (502); a driving frame (517) is slidably mounted on the side wall of the cleaning box (501); a sliding block (518) is fixedly mounted on the side wall of the driving frame (517); the sliding block (518) is slidably mounted on the side wall of the cleaning box (501); an eccentric shaft (519) is fixedly mounted on the surface of the rotating wheel (516); the driving frame (517) is sleeved on the surface of the eccentric shaft (519); and a connecting rod (520) is connected between the driving frame (517) and the piston (515); A cooling mechanism (6) is installed on the right side of the molding box (407) for cooling the coated cable. The cooling mechanism (6) comprises a water tank (601), a first water tank (602) and a second water tank (603). The water tank (601) is installed on the right side of the molding box (407). The inner cavity of the water tank (601) is provided with a first water tank (602) and a second water tank (603) for storing hot water and cold water respectively. A plurality of guide wheels (604) are rotatably installed in the inner cavity of the water tank (601); A heat dissipation frame (605) is installed in the inner cavity of the second water tank (603), a plurality of water channels (606) are opened in the inner cavity of the heat dissipation frame (605), a plurality of second spray holes (607) are opened on the inner wall of the heat dissipation frame (605), the second spray holes (607) are in communication with the water channels (606), the second spray holes (607) are opened at an angle, a radiator (608) is installed on the side wall of the water tank (601), a water pump (609) is installed in the inner cavity of the second water tank (603), a water inlet end of the water pump (609) is in communication with the second water tank (603), a water outlet end of the water pump (609) is in communication with the radiator (608), and the other end of the radiator (608) is in communication with the heat dissipation frame (605); A heat exchange mechanism (7) is installed on the surface of the base (1) for recovering heat from melting the raw material, the heat exchange mechanism (7) comprising a copper tube (702) and a fan (703), a heat exchange frame (701) is installed on the surface of the support (2), a copper tube (702) is installed in the inner cavity of the heat exchange frame (701), a fan (703) is installed on the surface of the support (2), and an air inlet end of the fan (703) is connected to one end of the copper tube (702); A preheating chamber (704) is provided in the inner cavity of the molding box (407), and an air pipe is provided between the preheating chamber (704) and the air outlet end of the fan (703). A plurality of third spray holes (705) are provided on the side wall of the preheating chamber (704) for preheating the cable. A plurality of aeration tubes (706) are installed in the inner cavity of the first water tank (602), and a plurality of fourth spray holes (707) are provided on the surface of the aeration tubes (706). The plurality of aeration tubes (706) and the air outlet end of the fan (703) are connected by air pipes.

2. A cable sheath extrusion method, applicable to the cable sheath extrusion device described in claim 1, characterized in that: The steps include: S1: cleaning; the cable to be coated with a sheath is sent into the cable channel (409) through the cleaning box (501), and the cleaning roller (502) is driven to rotate by the second motor (504) to clean the impurities on the cable surface; at the same time, the cleaning agent in the reagent box (511) is sent into the spray pipe (509) and sprayed onto the cable surface through the first spray hole (510), and the oil on the cable surface is cleaned with the brush (503), and the water stains on the cable surface can be wiped off synchronously with the cleaning sponge (507); S2: Extrusion; the cleaned cable is passed through the cable channel (409), and the conveying blade (403) is driven to rotate by the first motor (404), so as to push the raw material to move in the inner cavity of the conveying pipe (401), and the melted raw material is filtered through the filter plate (410), and then the raw material is extruded through the extrusion cavity (408) and coated on the surface of the cable, so as to realize the extrusion of the cable sheath; S3: Cooling; The coated cable is sequentially passed into the first water tank (602) and the second water tank (603) to be cooled, and hot water is placed in the first water tank (602) to pre-cool the cable, and the cooling water is pumped into the radiator (608) by a water pump (609) to dissipate heat. The cooling water after heat dissipation is sent to the water channel (606) and sprayed onto the cable surface through the second spray hole (607) opened at an angle, so that impurities on the cable surface can be cleaned while dissipating heat; S4: heat exchange; by arranging a copper tube (702) in the inner cavity of the heat exchange frame (701), the heat of the heating tube (405) is transferred to the air inside the copper tube (702) and sent into the preheating chamber (704) to preheat the cable to be coated with the sheath, and another part of the hot air is sent into the aeration tube (706) to heat the water in the first water tank (602).

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