Cable multi-layer extrusion processing equipment

Abstract

The present invention relates to the technical field of wire and cable extrusion processing, and discloses a cable multilayer extrusion processing equipment, comprising a first extrusion component, a cooling component and a second extrusion component arranged in sequence along a first direction, and the cable to be processed passes through the first extrusion component, the cooling component and the second extrusion component in sequence, wherein: the cooling component comprises a liquid storage tank and an aeration mechanism, the liquid storage tank is used to store cooling water, and the cable to be processed is immersed in the cooling water when passing through the liquid storage tank; the output end of the aeration mechanism is arranged on the inner side of the bottom wall of the liquid storage tank, and a plurality of aeration holes facing the cable to be processed are arranged thereon. The cable multilayer extrusion processing equipment can evenly and quickly cool the extruded material on the surface of the wire and cable, avoid the generation of internal stress that affects the mechanical properties and surface quality of the extruded material, and at the same time improve the adhesion of the extruded material during the re-extrusion processing.

Description

Technical Field

[0001] The invention relates to the technical field of wire and cable extrusion processing, and in particular to a cable multi-layer extrusion processing equipment. Background Art

[0002] Wires and cables are long strips of products. They are mainly used for information transmission and conversion. At present, extruders generally include a barrel with an extrusion screw inside. The screw rotates in the heated barrel to squeeze the plastic sent from the hopper forward, and the plastic changes from a solid state to a molten colloid. The fully plasticized plastic is then pushed or stirred by the screw into the fixture and the connected mold, and squeezed around the wires on the threading shaft to form a continuous and dense insulation layer or sheath layer, which is then cooled and solidified to form wires and cables. As the use environment of wires and cables increases, in order to improve the scope of application of wires and cables, The wires and cables are subjected to multi-layer co-extrusion processing through a multi-layer extrusion module, so that plastics with different properties are wrapped in layers on the outside of the wires and cables to form multiple continuous and dense insulation layers or sheath layers, so as to improve the application range and service life of the wires and cables. However, the co-extrusion die head and the multi-layer extrusion mold in the multi-layer extrusion module are complex in design, and the production and use costs are high. The multi-layer extrusion mold head is mainly designed for the processing of multi-layer sheaths. If a single-layer sheath needs to be produced, its function cannot be fully utilized, resulting in low equipment utilization. It is not suitable for a production environment with changing production needs and flexible adjustments, and the multi-layer mold head has a complex structure, and maintenance and cleaning are relatively difficult.

[0003] In order to reduce production and maintenance costs, the multi-layer extrusion processing equipment for wires and cables in the prior art adopts multiple extruders arranged in a straight line along the extrusion direction, so that the wires and cables to be processed are sequentially passed through multiple extruders to realize multi-layer extrusion processing to form a sheath of multi-layer extruded material. The fans are used between two adjacent extruders to dissipate the heat of the extruded wires and cables to ensure the stability of the shape and performance of the extruded materials on the wires and cables. The heat-dissipated wires and cables enter the next extruder for re-extrusion processing. It is suitable for production environments with variable production needs and flexible adjustments, and has low operation and maintenance costs. However, during the cooling process, the airflow generated by the fan is used to dissipate the heat of the extruded materials on the wires and cables after extrusion. Due to the guiding nature of the fan, the distribution of the airflow is uneven, which may cause the local area of ​​the extruded material on the wires and cables to be overcooled or overheated. Due to the uneven cooling and the difficulty of the airflow to maintain a stable cooling temperature, a temperature gradient is easily generated inside the extruded material, which increases internal stress and easily affects the mechanical properties and surface quality of the extruded material.

[0004] Therefore, the existing combined wire and cable multi-layer extrusion processing equipment still has the problem of uneven heat dissipation, which makes it easy to generate temperature gradients inside the extruded material, increase internal stress, and further affect the mechanical properties and surface quality of the extruded material. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a cable multi-layer extrusion processing equipment, which can evenly and quickly cool the extruded material on the surface of the wire and cable to avoid the generation of internal stress that affects the mechanical properties and surface quality of the extruded material, while improving the adhesion of the extruded material during the second extrusion process.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A cable multilayer extrusion processing device is designed, comprising a first extrusion component, a cooling component and a second extrusion component sequentially arranged along a first direction, and the cable to be processed passes through the first extrusion component, the cooling component and the second extrusion component sequentially, wherein:

[0008] The cooling assembly comprises a liquid storage tank and an aeration mechanism, wherein the liquid storage tank is used to store cooling water, and the cable to be processed is immersed in the cooling water when passing through the liquid storage tank;

[0009] The output end of the aeration mechanism is arranged on the inner side of the bottom wall of the liquid storage tank, and is provided with a plurality of aeration holes facing the cable to be processed.

[0010] Optionally, the aeration mechanism includes a fan, an air filter tube, a delivery pipe and a plurality of diversion pipes, the output end of the fan is connected to the air filter tube, the other end of the air filter tube is connected to the delivery pipe, the other end of the delivery pipe is at least partially located in a liquid storage tank, the plurality of diversion pipes are fixedly connected to the ends of the delivery pipes in the liquid storage tank, and the plurality of diversion pipes are evenly laid along the extension direction of the liquid storage tank, and the plurality of aeration holes are respectively opened on the surface of the diversion pipes.

[0011] Optionally, the aeration mechanism further comprises a plurality of diverter plugs, which are respectively arranged on the diverter pipe corresponding to the aeration holes, the cross-section of the diverter plug is trapezoidal, the end of the diverter plug with a smaller diameter faces the aeration hole and is spaced apart from the aeration hole.

[0012] Optionally, the aeration mechanism further includes a water cooling plate, the input end of the water cooling plate is detachably connected to the output end of the air filter tube, the output end of the water cooling plate is connected to the input end of the delivery pipe, and the water cooling plate is used to cool the gas entering through the air filter tube.

[0013] Optionally, the cooling assembly also includes a carrying box, which is in the shape of a hollow shell and has through holes at both ends for the cables to be processed to pass through. The liquid storage tank is fixedly installed in the carrying box and is spaced apart from the inner bottom wall of the carrying box.

[0014] Optionally, an exhaust port is provided on the upper surface of the carrying box, and a shock-absorbing pad is provided on the bottom of the carrying box.

[0015] Optionally, the cooling component also includes a drying mechanism, which includes a drying cylinder and a heating strip. The drying cylinder is fixedly connected to the end face of the carrying box facing the second extrusion component, and the end face of the drying cylinder facing the second extrusion component is sleeved on the outside of the cable to be processed through a through hole. The heating strip is spirally arranged on the inner wall of the drying cylinder, and a plurality of ventilation holes are opened on the surface of the drying cylinder.

[0016] Optionally, a filtering mechanism is further included, which includes a flow box, on which a water inlet pipe and a water outlet pipe are arranged, the inlet of the water inlet pipe is located in the liquid storage tank and above the diversion pipe, the flow box forms a water distribution area at the outlet of the water inlet pipe, the flow box forms a collection area below the water distribution area, a filtering part is arranged above the water distribution area, the inlet of the water outlet pipe is located above the filtering part, and the output end of the water outlet pipe passes through the liquid storage tank for conveying filtered water to the carrying box.

[0017] Optionally, it also includes a water replenishment mechanism, which includes a water pump, a water suction pipe and a water replenishment pipe, the input end of the water suction pipe is located at the bottom of the supporting box, the input end of the water replenishment pipe is fixedly connected to a water replenishment main pipe, the input end of the water replenishment main pipe is connected to the output end of the water suction pipe, the water replenishment pipe and the water replenishment main pipe are both located in the liquid storage tank, and the water replenishment pipe is correspondingly arranged between two shunt pipes, and a water replenishment port is opened on the surface of the water replenishment pipe facing away from the cable to be processed.

[0018] Optionally, the cooling component also includes a control component, which includes a control module and a temperature detection sensor. The input end of the control module is electrically connected to the temperature detection sensor, and the temperature detection sensor is arranged in the liquid storage tank.

[0019] The present invention provides a cable multilayer extrusion processing device, which has the following beneficial effects:

[0020] The cable multi-layer extrusion processing equipment, after the cable to be processed passes through the first extrusion component for the first extrusion processing, passes out, the cable to be processed that passes through the first extrusion component enters the liquid storage tank, and the extruded material on the surface of the cable is cooled by the cooling water stored in the liquid storage tank, and the heat is effectively taken away by the cooling water, so that the extruded material is quickly cooled and solidified, and then enters the second extrusion component for re-extrusion processing, and the heat in the extruded material can be quickly taken away by the cooling water, thereby improving production efficiency. The cooling water cooling can evenly surround the cable, ensure the uniform cooling of the extruded layer, reduce deformation or defects, and at the same time, the temperature distribution of the cooling water is more uniform, and the temperature of the cooling water can also be adjusted. By using warm water for preliminary cooling, it is possible to avoid the extruded material from generating internal stress or deformation due to too fast cooling, and avoid material stress concentration caused by too fast cooling. It can ensure the stable quality of cable products after extrusion processing. Through the aeration holes opened on the aeration mechanism, the aeration mechanism can allow the cold air flow to pass into the cooling water through the aeration holes. The cold air is in direct contact with the cooling water to increase the contact area between the cold air and the cooling water. At the same time, the rise of bubbles will drive the flow of water, increase water convection, and stir the cooling water. Aeration and stirring help to make the water temperature uniform, improve the efficiency of lowering the cooling water temperature, avoid local overheating, and ensure uniform cooling of the extruded material. The cold air exchanges heat with the cooling water, becomes warm, and then rises and impacts the surface of the extruded material wrapped in the cable. The warm airflow can perform secondary treatment on the cable surface, which may cause a slight roughness on the surface, which is beneficial to the adhesion of the second layer of extruded material, and improves the speed of uniform cooling of the first layer of extruded material of the cable to be processed, while effectively improving the adhesion of the second layer of extruded material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the cable multi-layer extrusion processing equipment of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of the cooling assembly in the present invention;

[0023] Figure 3 It is a schematic cross-sectional structural diagram of the cooling assembly in the present invention;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the filtering mechanism in the present invention;

[0025] Figure 5 It is a schematic diagram of a top cross-sectional structure of a cooling assembly of the present invention;

[0026] Figure 6 For the present invention Figure 3 Schematic diagram of the enlarged structure of part A.

[0027] In the figure: 100, first extrusion component; 200, cooling component; 210, liquid storage tank; 220, aeration mechanism; 221, aeration hole; 222, fan; 223, air filter tube; 224, delivery pipe; 225, diverter pipe; 226, diverter plug; 227, water cooling plate; 230, carrying box; 240, drying mechanism; 241, drying cylinder; 242, heating strip; 250, filtering mechanism; 251, flow box; 252, water inlet pipe; 253, water outlet pipe; 260, water replenishment mechanism; 261, water pump; 262, water extraction pipe; 263, water replenishment pipe; 264, water replenishment main pipe; 300, second extrusion component. DETAILED DESCRIPTION

[0028] 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. All other embodiments obtained by ordinary technicians in the field without making creative work based on the embodiments of the present invention shall fall within the scope of protection of the present invention.

[0029] See also Figures 1 to 6 The present invention provides a technical solution: a cable multilayer extrusion processing device, comprising a first extrusion component 100, a cooling component 200 and a second extrusion component 300 arranged in sequence along a first direction, and the cable to be processed passes through the first extrusion component 100, the cooling component 200 and the second extrusion component 300 in sequence, wherein:

[0030] The cooling assembly 200 includes a liquid storage tank 210 and an aeration mechanism 220. The liquid storage tank 210 is used to store cooling water. The cable to be processed is immersed in the cooling water when passing through the liquid storage tank 210.

[0031] The output end of the aeration mechanism 220 is arranged on the inner side of the bottom wall of the liquid storage tank 210, and is provided with a plurality of aeration holes 221 facing the cables to be processed;

[0032] The first extrusion assembly 100 is used to perform the first layer extrusion molding on the cable to be processed to form a preliminary sheath layer, providing basic mechanical protection and electrical insulation. The first extrusion assembly 100 and the second extrusion assembly 300 are both existing well-known technologies, which are only cited here for the purpose of extruding the cable to be processed to form a sheath layer. The first extrusion assembly 100 and the second extrusion assembly 300 can be extruders;

[0033] The liquid storage tank 210 is used to store cooling water to ensure that the cable to be processed is completely immersed in the cooling water when passing through. The cooling water can be water or a coolant. The cooling water can be warm water, such as water with a temperature between 20 and 60 degrees. The purpose is to take away the heat from the cable surface through the cooling water so that the first layer of extruded material can be quickly solidified. The high heat capacity and good thermal conductivity of water ensure that the cable surface is evenly cooled, reducing internal stress and deformation. The output end of the aeration mechanism 220 is set to introduce bubbles into the cooling water from the bottom of the liquid storage tank 210 through multiple aeration holes 221. The bubbles rise and burst in the water, which helps to increase the convection of the water. Improve cooling efficiency. The bubbles generated by aeration can effectively prevent the cooling water temperature from rising too quickly through heat exchange with water, keep the water temperature stable, and the movement and rupture of the bubbles make the water flow more evenly, avoid uneven cooling, and improve the cooling effect. The cooling component 200 can quickly and evenly cool the extruded layer by combining water cooling and aeration, improve production efficiency, and the tiny impact force generated by the bubbles generated by aeration when they rupture on the cable surface can improve the roughness of the cable surface and provide a better attachment basis for the second extrusion. The second extrusion component 300 performs a second layer of extrusion on the first layer of extruded material that has been cooled and solidified. The second layer of extrusion can be a further insulating layer, shielding layer or protective layer. Through multi-layer extrusion, the mechanical strength, environmental resistance and electrical insulation performance of the cable are further improved. Through segmented extrusion and cooling, continuous and efficient cable production can be achieved, reducing downtime and production costs. Multi-layer extrusion can be adjusted according to demand to produce cables with different functions and specifications, thereby improving the scope of application.

[0034] In this embodiment, as a preferred solution, the aeration mechanism 220 includes a fan 222, an air filter tube 223, a delivery tube 224 and a plurality of shunt tubes 225. The output end of the fan 222 is connected to the air filter tube 223, and the other end of the air filter tube 223 is connected to the delivery tube 224. The other end of the delivery tube 224 is at least partially located in the liquid storage tank 210. The plurality of shunt tubes 225 are all fixedly connected to the end of the delivery tube 224 in the liquid storage tank 210, and the plurality of shunt tubes 225 are evenly laid along the extension direction of the liquid storage tank 210. The plurality of aeration holes 221 are respectively provided on the surface of the shunt tubes 225. The fan 222 generates airflow to provide sufficient pressure and flow for the entire aeration system, so that air can pass through the air filter tube 223. The filter tube 223 and the delivery tube 224 reach the shunt tube 225 in the liquid storage tank 210, so that bubbles can be continuously generated in the cooling water to maintain the cooling effect. The impurities and particulate matter in the air are removed by the air filter tube 223 to ensure that the air delivered to the cooling water is clean, and impurities are prevented from entering the liquid storage tank 210 and polluting the cooling water, thereby affecting the cooling effect and the surface quality of the processed cable. The airflow in the delivery tube 224 is evenly distributed to multiple areas in the liquid storage tank 210 through the shunt tube 225, so that the airflow is evenly distributed in the liquid storage tank 210, so that the bubbles in the cooling water are evenly generated to avoid local uneven cooling. The air in the shunt tube 225 is released into the cooling water through the aeration holes 221 to form bubbles.

[0035] In this embodiment, as a preferred solution, the aeration mechanism 220 further includes a plurality of diverter plugs 226, which are respectively arranged on the diverter pipe 225 corresponding to the aeration holes 221. The cross section of the diverter plugs 226 is arranged in a trapezoidal shape, and the end of the diverter plug 226 with a small diameter faces the aeration hole 221 and is arranged at a distance from the aeration hole 221.

[0036] Through the action of the diverter plug 226, after the air enters the cooling water through the aeration hole 221, it first contacts the end of the diverter plug 226 with a small diameter, and the end of the diverter plug 226 with a small diameter disperses the airflow flowing out through the aeration hole 221, so as to avoid large bubbles entering the cooling water, resulting in more air in the bubbles, slower heat exchange, and part of the air in the bubbles unable to exchange heat with the cooling water, resulting in a large temperature difference of the air in the bubbles. At the same time, large bubbles have a greater impact on the extruded material on the surface of the cable, which can easily damage the surface of the extruded material. By dispersing the airflow flowing out of the aeration hole 221, the bubbles are made smaller, so as to produce smaller and uniform bubbles, and reduce the impact on the extruded material on the surface of the cable.

[0037] The air pressure generated by the fan 222 is sufficient to overcome the resistance of the water to prevent the cooling water from flowing back and forming a blockage. A one-way valve may also be provided on the delivery pipe 224 so that the fan 222 can push the air into the delivery pipe 224 through the one-way valve and then flow out through the diverter pipe 225 without allowing water to enter the delivery pipe 224.

[0038] The fan 222 can also be replaced by an air pump. The air pump is a well-known technology and is only used for reference. The purpose is to pump the gas outside the liquid storage tank 210 into the shunt pipe 225.

[0039] In this embodiment, as a preferred solution, the aeration mechanism 220 also includes a water cooling plate 227, the input end of the water cooling plate 227 is detachably connected to the output end of the air filter tube 223, and the output end of the water cooling plate 227 is connected to the input end of the delivery pipe 224. The water cooling plate 227 is used to cool the gas entering through the air filter tube 223. The water cooling plate 227 is connected to the output end of the air filter tube 223 and the input end of the delivery pipe 224, with the purpose of reducing the air flow temperature. The water cooling plate 227 is an existing well-known technology and is only used for reference. It can be a plate-like structure with a space partition, in which a part of the space is used for air circulation, and the other part of the space is used for low-temperature liquid storage. The air is cooled by heat exchange with the low-temperature liquid, with the purpose of coordinating with the cooling water in the liquid storage tank 210 to achieve cooling efficiency adjustment.

[0040] In this embodiment, as a preferred solution, the cooling assembly 200 also includes a carrying box 230, which is in the shape of a hollow shell and has through holes at both ends for the cables to be processed to pass through. The liquid storage tank 210 is fixedly installed in the carrying box 230 and is spaced apart from the inner bottom wall of the carrying box 230. The carrying box 230 is used to receive and temporarily store water that accidentally overflows from the liquid storage tank 210 to prevent it from directly flowing out to the outside and affecting the surrounding environment.

[0041] In this embodiment, as a preferred solution, an exhaust port is opened on the upper surface of the carrying box 230, and a shock-absorbing pad is set at the bottom of the carrying box 230. The gas after the bubbles rise to the cooling water surface is discharged through the exhaust port to avoid the generation of positive pressure in the liquid storage tank 210. The shock-absorbing pad can protect the carrying box 230 and avoid a hard connection with the supporting surface.

[0042] In this embodiment, as a preferred solution, the cooling assembly 200 further includes a drying mechanism 240, the drying mechanism 240 includes a drying cylinder 241 and a heating strip 242, the drying cylinder 241 is fixedly connected to the end surface of the carrying box 230 facing the second extrusion assembly 300, the end surface of the drying cylinder 241 facing the second extrusion assembly 300 is sleeved on the outside of the cable to be processed through the through hole, the heating strip 242 is spirally arranged on the inner wall of the drying cylinder 241, and a plurality of vents are opened on the surface of the drying cylinder 241;

[0043] The drying drum 241 is used to dry the cooled cable, remove moisture from the cable surface, and improve the dryness of the cable before entering the second extrusion stage. The heating strip 242 is used to provide heat. It is spirally arranged on the inner wall of the drying drum 241 to evenly heat the cable surface, ensure the temperature inside the drying drum 241 is uniform, quickly and efficiently remove moisture from the cable surface, and evenly heat the first layer of extruded material on the cable surface. During the drying process, the temperature of the first layer of extruded material on the cable surface is increased to a certain range, such as between 80 and 120 degrees, to improve the adhesion effect of the second layer of extruded material, and provide ventilation. Through the setting of the vents, it is ensured that the evaporated moisture is discharged to prevent moisture accumulation and avoid affecting the subsequent extrusion quality.

[0044] A temperature detection component may also be provided at the output port of the drying drum 241 to detect the temperature of the extruded material on the surface of the wire and cable after passing through the drying drum 241 , thereby providing reference data for adjusting the temperature of the heating strip 242 .

[0045] In this embodiment, as a preferred solution, a filtering mechanism 250 is further included. The filtering mechanism 250 includes a flow box 251. A water inlet pipe 252 and a water outlet pipe 253 are arranged on the flow box 251. The inlet of the water inlet pipe 252 is located in the liquid storage tank 210 and above the diverter pipe 225. The flow box 251 forms a water distribution area at the outlet of the water inlet pipe 252. The flow box 251 forms a collection area below the water distribution area. A filtering part is arranged above the water distribution area. The inlet of the water outlet pipe 253 is located above the filtering part. The output end of the water outlet pipe 253 passes through the liquid storage tank 210 and is used to transport the filtered water to the carrying box 230.

[0046] The water in the liquid storage tank 210 is introduced into the flow box 251 through the water inlet pipe 252. The flow box 251 provides a container for filtering and purifying the water flow. The water flow is dispersed through the water distribution area so that it flows evenly through the filter part. Its main purpose is to reduce the impact force of the incoming water. At the same time, through the action of the aeration mechanism 220, the water flow continues to flow along the direction of the bubbles to avoid the precipitation of impurities at the bottom of the liquid storage tank 210. The impurities move with the water flow. The aeration hole 221 is set on one side of the flow box 251, so that the water flow will be dispersed from the central part of the flow box 251 to the filter box, that is, to the water inlet. The water in the water pipe 252 is dispersed in the direction, and a vortex is formed at the water inlet pipe 252, so that most of the impurities enter the water inlet pipe 252, while the impurities that have not entered the water inlet pipe 252 rise again with the water flow stirred by the bubbles until they enter the water inlet pipe 252. The cooling water can be filtered in a continuous cycle to improve the water quality, prevent pollution from affecting the cooling effect and the surface quality of the cable, realize the recycling of cooling water, reduce water resource consumption, and improve environmental protection performance. The filtered cooling water enters the carrying box 230 through the outlet pipe 253, avoiding the water level of the cooling water in the storage tank 210 affecting the discharge of the cooling water after filtration.

[0047] In this embodiment, as a preferred solution, a water replenishment mechanism 260 is also included. The water replenishment mechanism 260 includes a water pump 261, a water pumping pipe 262 and a water replenishment pipe 263. The input end of the water pumping pipe 262 is located at the bottom of the carrying box 230. The input end of the water replenishment pipe 263 is fixedly connected to a water replenishment main pipe 264. The input end of the water replenishment main pipe 264 is connected to the output end of the water pumping pipe 262. The water replenishment pipe 263 and the water replenishment main pipe 264 are both located in the liquid storage tank 210, and the water replenishment pipe 263 is correspondingly arranged between the two shunt pipes 225. The water replenishment pipe 263 is provided with a water replenishment port on the surface of the cable to be processed away from the surface.

[0048] The water pump 261 in the water replenishment mechanism 260 draws the water in the carrying box 230 into the water replenishment main pipe 264 through the pumping pipe 262, and the cooling water is respectively input into the water replenishment pipe 263 through the water replenishment main pipe 264. The cooling water entering the water replenishment pipe 263 is discharged through the water replenishment port opened on the water replenishment pipe 263, thereby transporting the cooling water in the carrying box 230 to the liquid storage tank 210, replenishing the cooling water in the liquid storage tank 210, so that the cooling water can continue to submerge the passing wires and cables. The water replenishment port is opened on the surface of the water replenishment pipe 263 away from the surface of the cable to be processed. After the cooling water is discharged from the water replenishment pipe 263, it will flush the bottom wall of the liquid storage tank 210. After brushing, the water disperses to both sides to further avoid the existence of sediments. The water flowing out of the water replenishment port flushes the bottom wall of the liquid storage tank 210. The sediments will float up with the water flow and participate in the water flow stirred by the bubbles, so as to perform filtering circulation with the upward thrust generated by the bubbles. The cooling water in the liquid storage tank 210 is replenished through the water replenishment pipe 263, while reducing the existence of sediments, further improving the overall structural compactness, thereby improving the filtration efficiency, and not affecting the rise of bubbles, reducing the operating cost, and improving the convection and heat conduction efficiency of the cooling water through uniform water replenishment and aeration, ensuring uniform cooling of the cable surface, and reducing internal stress and deformation;

[0049] There are multiple water supply pipes 263 , which are evenly distributed at the bottom of the liquid storage tank 210 and are staggered with the diversion pipes 225 .

[0050] In this embodiment, as a preferred solution, the cooling assembly 200 further includes a control assembly, which includes a control module and a temperature detection sensor. The input end of the control module is electrically connected to the temperature detection sensor, and the temperature detection sensor is disposed in the liquid storage tank 210.

[0051] The control module and the temperature detection sensor are both existing well-known technologies, which are only cited here. The purpose is to detect the temperature of the cooling water in the liquid storage tank 210 through the temperature detection sensor. When the temperature of the cooling water is higher than the preset temperature range, such as 40-60, the control module is electrically connected to the fan 222 to increase the rotation speed of the fan 222, thereby increasing the air flow entering the liquid storage tank 210, and the cooling water temperature is quickly cooled by exchanging heat between the air entering the liquid storage tank 210 and the cooling water. When the temperature of the cooling water is lower than the preset temperature range, such as 30-40, the control module is used to reduce the rotation speed of the fan 222, thereby reducing the air flow entering the liquid storage tank 210 and slowing down the cooling of the cooling water temperature.

[0052] At the same time, the control module is also electrically connected to the heating strip 242, the water cooling plate 227 and the water pump 261, so that the temperature of the heating strip 242 can be manually adjusted. At the same time, the water cooling plate 227 cooperates with the air intake of the fan 222 to adjust the cooling efficiency of the cooling water temperature. The water pump 261 is used to continuously replenish the cooling water in the carrying box 230 into the liquid storage tank 210.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable multilayer extrusion processing equipment, characterized in that: The invention comprises a first extrusion assembly (100), a cooling assembly (200) and a second extrusion assembly (300) which are arranged in sequence along a first direction, and a cable to be processed passes through the first extrusion assembly (100), the cooling assembly (200) and the second extrusion assembly (300) in sequence, wherein: The cooling assembly (200) comprises a liquid storage tank (210) and an aeration mechanism (220), the liquid storage tank (210) being used to store cooling water, and the cable to be processed is immersed in the cooling water when passing through the liquid storage tank (210); The output end of the aeration mechanism (220) is arranged on the inner side of the bottom wall of the liquid storage tank (210), and is provided with a plurality of aeration holes (221) facing the cable to be processed; The aeration mechanism (220) comprises a fan (222), an air filter tube (223), a delivery tube (224), and a plurality of shunt tubes (225); the output end of the fan (222) is in communication with the air filter tube (223); the other end of the air filter tube (223) is in communication with the delivery tube (224); the other end of the delivery tube (224) is at least partially located in the liquid storage tank (210); the plurality of shunt tubes (225) are all fixedly connected to the ends of the delivery tube (224) in the liquid storage tank (210); the plurality of shunt tubes (225) are evenly laid along the extension direction of the liquid storage tank (210); and the plurality of aeration holes (221) are respectively provided on the surface of the shunt tubes (225); The aeration mechanism (220) further comprises a plurality of flow diverter plugs (226), the plurality of flow diverter plugs (226) being arranged on the flow diverter pipe (225) corresponding to the aeration holes (221) respectively, the cross section of the flow diverter plugs (226) being arranged in a trapezoidal shape, the end of the flow diverter plug (226) having a smaller diameter facing the aeration hole (221) and being arranged at a distance from the aeration hole (221); The cooling assembly (200) further comprises a carrying box (230), the carrying box (230) being arranged in a hollow shell shape and having through holes at both ends for the cables to be processed to pass through, the liquid storage box (210) being fixedly installed in the carrying box (230) and spaced apart from the inner bottom wall of the carrying box (230).

2. A cable multilayer extrusion processing equipment according to claim 1, characterized in that: The aeration mechanism (220) further comprises a water cooling plate (227), the input end of the water cooling plate (227) being detachably connected to the output end of the air filter tube (223), the output end of the water cooling plate (227) being connected to the input end of the delivery tube (224), and the water cooling plate (227) being used to cool the gas entering through the air filter tube (223).

3. A cable multilayer extrusion processing equipment according to claim 1, characterized in that: An exhaust port is provided on the upper surface of the carrying box (230), and a shock-absorbing pad is provided on the bottom of the carrying box (230).

4. A cable multilayer extrusion processing equipment according to claim 1, characterized in that: The cooling component (200) further comprises a drying mechanism (240), wherein the drying mechanism (240) comprises a drying cylinder (241) and a heating strip (242), wherein the drying cylinder (241) is fixedly connected to the end face of the supporting box (230) facing the second extrusion component (300), and the end face of the drying cylinder (241) facing the second extrusion component (300) is sleeved on the outside of the cable to be processed through a through hole, and the heating strip (242) is spirally arranged on the inner wall of the drying cylinder (241), and a plurality of ventilation holes are provided on the surface of the drying cylinder (241).

5. The cable multilayer extrusion processing equipment according to claim 1, characterized in that: The invention also comprises a filtering mechanism (250), the filtering mechanism (250) comprising a flow box (251), the flow box (251) being provided with a water inlet pipe (252) and a water outlet pipe (253), the inlet of the water inlet pipe (252) being located in the liquid storage tank (210) and above the diversion pipe (225), the flow box (251) forming a water distribution area at the outlet of the water inlet pipe (252), the flow box (251) forming a collection area below the water distribution area, a filtering part being provided above the water distribution area, the inlet of the water outlet pipe (253) being located above the filtering part, and the output end of the water outlet pipe (253) passing through the liquid storage tank (210) for conveying filtered water to the carrying box (230).

6. A cable multilayer extrusion processing equipment according to claim 5, characterized in that: The invention also comprises a water replenishment mechanism (260), the water replenishment mechanism (260) comprising a water pump (261), a water extraction pipe (262) and a water replenishment pipe (263), the input end of the water extraction pipe (262) being located at the bottom of the carrying box (230), the input end of the water replenishment pipe (263) being fixedly connected to a water replenishment main pipe (264), the input end of the water replenishment main pipe (264) being connected to the output end of the water extraction pipe (262), the water replenishment pipe (263) and the water replenishment main pipe (264) being both located in the liquid storage box (210), and the water replenishment pipe (263) being correspondingly arranged between the two shunt pipes (225), and a water replenishment port being provided on the surface of the water replenishment pipe (263) facing away from the cable to be processed.

7. A cable multilayer extrusion processing equipment according to claim 1, characterized in that: The cooling component (200) further comprises a control component, the control component comprising a control module and a temperature detection sensor, the input end of the control module is electrically connected to the temperature detection sensor, and the temperature detection sensor is arranged in the liquid storage tank (210).

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