Cooling system for flame-retardant wire and cable production

Abstract

The invention discloses a cooling system for flame-retardant wire and cable production, and belongs to the technical field of cable production. A cooling system for flame-retardant wire and cable production comprises a cooling box and further comprises a first through cylinder fixedly connected in a cavity of the cooling box, a second through cylinder fixedly connected in a cavity of the cooling box, a third cooling mechanism arranged in the first through cylinder, and spraying ends of the third cooling mechanism evenly distributed in the cavity of the cooling box in a circumferential mode; the second through cylinder is arranged on one side of the output end of the first through cylinder, a fourth cooling mechanism is arranged in the second through cylinder, a heat dissipation box is fixedly connected to the bottom of the cooling box, a heat dissipation pipe is arranged in the heat dissipation box, and the output end of the heat dissipation pipe communicates with the input end of the fourth cooling mechanism; according to the invention, the external part of the cable can be cooled through four cooling processes, so that the external part of the cable is cooled step by step, the uneven surface of an insulating layer caused by rapid cooling of a shell is prevented, the production quality of the wire cable is improved, and the service life of the wire cable is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of cable production, and in particular to a cooling system for producing flame-retardant wires and cables. Background Art

[0002] Cables are usually rope-like cables made of several or several groups of pure copper wires twisted together. Each group of wires is insulated from each other and often twisted around a center. The entire outside is covered with a highly insulating covering. The cable has the characteristics of internal power supply and external insulation. Due to the huge market usage, safety and quality must also be qualified. Ordinary cables can no longer meet daily needs, so flame-retardant cables are produced. Commonly used flame-retardant materials include fluoroplastics, which have excellent flame retardant properties and chemical stability, and silicone rubber, which has good high temperature resistance and flame retardant properties to protect the wires inside the cable.

[0003] In the production process of flame-retardant cables, cooling is the last step, and the high-temperature cables need to be cooled after molding. At present, most of the existing technologies directly use water for cooling, immersing the cables in a cooling trough, and injecting cooling water into the cooling trough to achieve the purpose of cooling the wires and cables.

[0004] However, this cooling method has certain disadvantages. In order to ensure the cooling effect of wires and cables, the temperature of cooling water is generally low. If the cable is directly in contact with cooling water with a temperature that is too low, its outer shell will cool and shrink. The rapid cooling may cause the surface of the insulation layer to be uneven, thus affecting the production quality of wires and cables and reducing their service life. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that if the cable is directly in contact with cooling water with a temperature that is too low, its outer shell will cool and shrink, and the surface of the insulation layer will easily become uneven due to rapid cooling, thereby affecting the production quality of the wire and cable and reducing its service life. A cooling system for the production of flame-retardant wires and cables is proposed to solve the problem.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A cooling system for flame-retardant wire and cable production, comprising a cooling box, and further comprising: a first through-tube, fixedly connected in the cavity of the cooling box, wherein a third cooling mechanism is arranged in the first through-tube, and the injection end of the third cooling mechanism is circumferentially evenly distributed in the cavity of the cooling box; a second through-tube, arranged on one side of the output end of the first through-tube, wherein a fourth cooling mechanism is arranged in the second through-tube, a heat sink is fixedly connected to the bottom of the cooling box, a heat pipe is arranged in the heat sink, the output end of the heat pipe is connected to the input end of the fourth cooling mechanism, and a heat sink is arranged in the heat sink for External cooling of the heat dissipation pipe; a second pre-cooling box, fixedly connected to the side wall of the cooling box, wherein a second cooling mechanism is arranged in the second pre-cooling box, a working box is fixedly connected to the top of the cooling box, a heating component is arranged in the working box, a liquid storage tank is fixedly connected to the working box, and the bottom of the liquid storage tank faces the heating component, and the liquid storage tank is connected to the input end of the second cooling mechanism; a first pre-cooling box, arranged on one side of the input end of the second pre-cooling box, wherein a first cooling mechanism is arranged in the first pre-cooling box, and the input end of the first cooling mechanism is connected to the working box and cooperates with the heating component.

[0008] In order to facilitate the first jet cooling of the outside of the cable, preferably, the first cooling mechanism includes a jet plate, which is fixedly connected to the cavity of the first pre-cooling box, the jet end of the jet plate is facing the cable, and a placement box is fixedly connected to the side wall of the cooling box, the first pre-cooling box and the second pre-cooling box are both arranged in the placement box, a booster disk is fixedly connected in the placement box, a rotating shaft is rotatably connected to the booster disk, fan blades are fixedly connected to the rotating shaft, and the fan blades are arranged in the booster disk, one side of the booster disk is connected to the jet plate through an air outlet pipe, and the other side of the booster disk is connected to the working box through an air inlet pipe.

[0009] In order to facilitate heating of the gas ejected from the jet plate, the heating assembly further includes a thermal resistance wire fixedly connected to the working box, the liquid storage tank is arranged above the heating end of the thermal resistance wire, and a ventilation pipe is arranged on the working box, and the ventilation pipe cooperates with the air outlet pipe.

[0010] In order to facilitate the second steam cooling of the outside of the cable, preferably, the second cooling mechanism includes a steam spray plate, which is fixedly connected to the inner wall of the second pre-cooling box and is connected to the top of the liquid storage tank through a conveying pipe.

[0011] In order to facilitate the third liquid spray cooling of the outside of the cable, further, the third cooling mechanism includes a liquid spray plate, which is fixedly connected to the inner wall of the first barrel, and the liquid spray plate is connected to the side wall of the liquid storage tank through a liquid inlet pipe. The first barrel is fixedly connected to the input end of the heat dissipation pipe through a first water outlet pipe. A water pump is fixedly connected to the top of the cooling box, and the output end of the water pump is connected to the liquid storage tank through a pipeline. A collecting pipe is provided at the bottom of the second barrel, and the collecting pipe is fixedly connected to the input end of the water pump.

[0012] In order to facilitate repeated heat dissipation and cooling of the liquid in the spray plate, preferably, the heat dissipation mechanism includes a heat dissipation plate, which is fixedly connected to the inner wall of the heat dissipation box, and has heat dissipation holes on the heat dissipation plate, and the output ends of the heat dissipation holes face the heat dissipation pipe, the placement box is fixedly connected to an installation box, and a heat dissipation air cylinder is fixedly connected to the installation box, the heat dissipation air cylinder is slidably connected to a connecting rod, a piston is provided on the connecting rod, and the piston is in contact with the inner wall of the heat dissipation air cylinder, the heat dissipation air cylinder is respectively fixedly connected to a first air pipe and a second air pipe, and the first air pipe and the second air pipe are both provided with a one-way valve, and the second air pipe is communicated with the heat dissipation plate.

[0013] In order to facilitate the reciprocating movement of the movable block, preferably, a screw rod is rotatably connected in the installation box, the movable block is threadedly connected to the screw rod, and the end of the connecting rod away from the piston is fixedly connected to the movable block.

[0014] In order to facilitate the rotation of the screw rod, further, a transmission disk is fixedly connected in the installation box, a transmission rod is rotatably connected to the transmission disk, one end of the transmission rod passes through the transmission disk and is fixedly connected to the screw rod, a turbine blade is fixedly connected to the transmission rod, and the turbine blade is arranged in the transmission disk, the first water outlet pipe is connected to one side of the transmission disk, and the other side of the transmission disk is connected to the input end of the heat dissipation pipe through the second water outlet pipe.

[0015] In order to facilitate the rotation of the rotating shaft, preferably, a main gear is fixedly connected to the rotating shaft, and the other end of the transmission rod passes through the installation box and extends to the placement box to be fixedly connected to an auxiliary gear, and the auxiliary gear is meshed with the main gear.

[0016] In order to facilitate the fourth cooling of the outside of the cable, preferably, the fourth cooling mechanism includes a water spraying plate, the water spraying plate is fixedly connected to the inner top of the second through tube, and the water spraying plate is connected to the output end of the heat dissipation pipe.

[0017] Compared with the prior art, the present invention provides a cooling system for flame-retardant wire and cable production, which has the following beneficial effects:

[0018] 1. The cooling system for the production of flame-retardant wires and cables can spray the hot air in the working box through the jet plate, so that the hot air is sprayed onto the cable surface, and the cable surface is cooled for the first time to prevent the cable surface from being rapidly cooled, thereby preventing the surface of the insulation layer from being uneven;

[0019] 2. The cooling system for the production of flame-retardant wires and cables sprays superheated steam through the steam spray plate, which can perform a second cooling on the outside of the cable, further reduce the temperature of the cable surface, and then gradually cool down the external material of the cable;

[0020] 3. The cooling system for the production of flame-retardant wires and cables transports the heated hot water in the liquid storage tank to the liquid spray plate through the liquid inlet pipe, and then the liquid spray plate sprays the hot water on the outside of the cable, thereby cooling the cable for the third time and reducing the temperature of the cable surface;

[0021] 4. The cooling system for flame-retardant wire and cable production starts the motor, and the high-temperature liquid in the first tube is transported to the heat dissipation pipe through the second water outlet pipe. The heat dissipation pipe is in a bent state, and the heat dissipation hole sprays the normal temperature gas onto the heat dissipation pipe, and the high-temperature liquid in the heat dissipation pipe is cooled by wind, thereby reducing the temperature of the liquid in the heat dissipation pipe. Then, the water spraying plate sprays the reduced temperature to the outside of the cable, achieving the fourth cooling effect;

[0022] 5. The cooling system for the production of flame-retardant wires and cables can cool the outside of the cable step by step through the above four cooling processes to prevent the outer shell from becoming uneven on the surface of the insulation layer due to rapid cooling, thereby improving the production quality of the wires and cables and increasing their service life.

[0023] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The present invention can use four cooling processes to cool the outside of the cable, and then gradually cool the outside of the cable to prevent the outer shell from causing unevenness on the surface of the insulation layer due to rapid cooling, thereby improving the production quality of wires and cables and increasing their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the axonometric structure of a cooling system for flame-retardant wire and cable production proposed by the present invention Figure 1 ;

[0025] Figure 2 A schematic diagram of the axonometric structure of a cooling system for flame-retardant wire and cable production proposed by the present invention Figure 2 ;

[0026] Figure 3 A schematic diagram of the cross-section of a cooling system for flame-retardant wire and cable production proposed by the present invention Figure 1 ;

[0027] Figure 4 A schematic diagram of the cross-section of a cooling system for flame-retardant wire and cable production proposed by the present invention Figure 2 ;

[0028] Figure 5 This is a partial structural schematic diagram of a cooling system for flame-retardant wire and cable production proposed by the present invention;

[0029] Figure 6 This is a schematic diagram of the structure inside a cooling box of a cooling system for flame-retardant wire and cable production proposed by the present invention;

[0030] Figure 7 This is a schematic diagram of the structure inside the installation box of a cooling system for flame-retardant wire and cable production proposed by the present invention;

[0031] Figure 8 The present invention is a schematic diagram of the structure of the interior of a cooling system placement box for flame-retardant wire and cable production.

[0032] In the figure: 1, cooling box; 2, first through-tube; 3, liquid spray plate; 4, second through-tube; 5, water spray plate; 6, working box; 7, thermal resistance wire; 8, liquid storage box; 9, water pump; 10, storage box; 11, second pre-cooling box; 12, steam spray plate; 13, first pre-cooling box; 14, jet plate; 15, motor; 16, booster plate; 17, rotating shaft; 18, fan blade; 19, installation box; 20, transmission plate; 21, transmission rod; 22 , turbine blade; 23, auxiliary gear; 24, screw rod; 25, movable block; 26, heat sink; 27, connecting rod; 28, heat sink; 29, heat pipe; 30, heat sink; 31, heat dissipation hole; 32, through hole; 33, delivery pipe; 34, air outlet pipe; 35, air inlet pipe; 36, first water outlet pipe; 37, second water outlet pipe; 38, collecting pipe; 39, first air supply pipe; 40, second air supply pipe; 41, liquid inlet pipe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Example:

[0036] Reference Figure 1-Figure 8 A cooling system for flame-retardant wire and cable production includes a cooling box 1, and also includes: a first through-tube 2, which is fixedly connected to the cavity of the cooling box 1, wherein a third cooling mechanism is arranged in the first through-tube 2, and the injection end of the third cooling mechanism is evenly distributed in the cavity of the cooling box 1 in a circumferential manner; a second through-tube 4, which is arranged on one side of the output end of the first through-tube 2, wherein a fourth cooling mechanism is arranged in the second through-tube 4, a heat sink 28 is fixedly connected to the bottom of the cooling box 1, a heat sink 28 is arranged in the heat sink 28, the output end of the heat sink 29 is connected to the input end of the fourth cooling mechanism, and the heat sink 28 is arranged in the heat sink, For external cooling of the heat dissipation pipe 29; a second precooling box 11 is fixedly connected to the side wall of the cooling box 1, wherein a second cooling mechanism is arranged in the second precooling box 11, a working box 6 is fixedly connected to the top of the cooling box 1, a heating component is arranged in the working box 6, a liquid storage tank 8 is fixedly connected to the working box 6, and the bottom of the liquid storage tank 8 faces the heating component, and the liquid storage tank 8 is connected to the input end of the second cooling mechanism; a first precooling box 13 is arranged on one side of the input end of the second precooling box 11, wherein a first cooling mechanism is arranged in the first precooling box 13, and the input end of the first cooling mechanism is connected to the working box 6 and cooperates with the heating component.

[0037] Flame-retardant cables usually use fluoroplastics and silicone rubber as external covering materials, both of which have good high temperature resistance and flame retardant properties to protect the wires inside the cable, and the temperature resistance range is usually between -200℃ and 260℃. During the production process of flame-retardant cables, cooling is the last process, and the high-temperature cable needs to be cooled after molding. At present, water is directly used for cooling. The cable is immersed in a cooling trough, and cooling water is injected into the cooling trough to achieve the purpose of cooling the wires and cables. However, this cooling method has certain disadvantages. In order to ensure the cooling effect of the wires and cables, the temperature of the cooling water is generally low. If the cable is directly in contact with cooling water with a temperature that is too low, its outer shell will cool and shrink, and it is easy to cause the surface of the insulation layer to be uneven due to rapid cooling, thereby affecting the production quality of the wires and cables and reducing their service life. Therefore, it is necessary to gradually cool down the external materials of the cable.

[0038] The first precooling box 13, the second precooling box 11, the first through tube 2 and the second through tube 4 are arranged in a straight line and are interconnected. The flame-retardant cable enters from the opening of the first precooling box 13, and then enters the second precooling box 11, the first through tube 2 and the second through tube 4 in sequence.

[0039] A first cooling mechanism is provided in the first pre-cooling box 13 for performing a first cooling on the high-temperature cable after molding, thereby achieving a primary cooling effect.

[0040] The above-mentioned first cooling mechanism includes a jet plate 14, which is fixedly connected to the cavity of the first precooling box 13, and the jet end of the jet plate 14 faces the cable. A placement box 10 is fixedly connected to the side wall of the cooling box 1, and the first precooling box 13 and the second precooling box 11 are both arranged in the placement box 10. A booster disk 16 is fixedly connected in the placement box 10, and a rotating shaft 17 is rotatably connected to the booster disk 16. A fan blade 18 is fixedly connected to the rotating shaft 17, and the fan blade 18 is arranged in the booster disk 16. One side of the booster disk 16 is connected to the jet plate 14 through an air outlet pipe 34, and the other side of the booster disk 16 is connected to the working box 6 through an air inlet pipe 35. A motor 15 is also fixedly connected to the side wall of the placement box 10, and the rotating shaft 17 is fixedly connected to the output end of the motor 15.

[0041] The motor 15 drives the shaft 17 to rotate, so that the shaft 17 drives the fan blades 18 to rotate inside the supercharging disc 16, so that the external air enters the supercharging disc 16 through the air inlet pipe 35, and is then transported to the inside of the jet plate 14 through the air outlet pipe 34.

[0042] A heating assembly is also provided in the working box 6 , and the heating assembly includes a thermal resistance wire 7 fixedly connected in the working box 6 , and a liquid storage tank 8 is arranged above the heating end of the thermal resistance wire 7 , and a ventilation pipe is provided on the working box 6 , and the ventilation pipe cooperates with the air outlet pipe 34 .

[0043] When the outside of the cable needs to be cooled for the first time, the switch of the thermal resistance wire 7 is started, and the thermal resistance wire 7 can reach a temperature of about two hundred degrees Celsius after being powered on. The power of the thermal resistance wire 7 can be selected according to the applicable temperature. The greater the power, the more heat is generated, and the temperature of the air in the working box 6 is higher. The switch of the thermal resistance wire 7 is started, and a temperature sensor is set in the working box 6. The temperature in the working box 6 can be detected, so that the temperature range in the working box 6 is maintained between 150-200°C. At this time, the switch of the motor 15 is started again, so that the gas in the working box 6 is transported to the booster disk 16, and then enters the jet plate 14, so that the jet plate 14 is directed toward the outside of the cable for the first cooling. Since the temperature range of the gas ejected by the jet plate 14 is more than one hundred degrees Celsius, when necessary, the power output of the thermal resistance wire 7 can be adjusted.

[0044] The hot air in the working box 6 can be sprayed out through the jet plate 14, so that the hot air is sprayed onto the cable surface, and the cable surface is cooled for the first time, so as to prevent the cable surface from being cooled rapidly, and further prevent the insulating layer from having uneven surfaces.

[0045] Furthermore, in order to perform a second cooling on the outside of the cable, the second cooling mechanism includes a steam spray plate 12 , which is fixedly connected to the inner wall of the second pre-cooling box 11 , and the steam spray plate 12 is connected to the top of the liquid storage tank 8 through a delivery pipe 33 .

[0046] When the thermal resistance wire 7 is started, the liquid storage tank 8 can be filled with water, and the liquid storage tank 8 is made of stainless steel. A pipe for filling the water source is also provided on the liquid storage tank 8 to replenish the liquid in the liquid storage tank 8. When the temperature in the working box 6 is high, the water source in the liquid storage tank 8 will boil and generate water vapor. During this process, the water vapor will rise to the inner top of the liquid storage tank 8. During this process, the water vapor will be transported to the steam spray plate 12 through the delivery pipe 33.

[0047] Since the cavity of the liquid storage tank 8 is in a relatively sealed state, and the gas can only be transported to the steam spray plate 12 through the delivery pipe 33, a certain pressure will be generated in the liquid storage tank 8. Under a certain pressure, the temperature of the water vapor can exceed its saturation temperature and become superheated water vapor, and the temperature range will be between 100°C and 120°C.

[0048] Reference Figure 8 As shown in FIG, the superheated water vapor is sprayed out through the steam spray plate 12, so that the outside of the cable can be cooled for the second time, and the temperature of the cable surface can be further reduced, thereby gradually cooling the external material of the cable.

[0049] Furthermore, in order to facilitate the third cooling of the outside of the cable, the above-mentioned third cooling mechanism includes a liquid spray plate 3, which is fixedly connected to the inner wall of the first barrel 2, and the liquid spray plate 3 is connected to the side wall of the liquid storage tank 8 through the liquid inlet pipe 41. The first barrel 2 is fixedly connected to the input end of the heat dissipation pipe 29 through the first water outlet pipe 36. A water pump 9 is fixedly connected to the top of the cooling box 1, and the output end of the water pump 9 is connected to the liquid storage tank 8 through a pipeline. A collecting pipe 38 is provided at the bottom of the second barrel 4, and the collecting pipe 38 is fixedly connected to the input end of the water pump 9.

[0050] The heated hot water in the liquid storage tank 8 is transported to the liquid spray plate 3 through the liquid inlet pipe 41, and then the hot water is sprayed on the outside of the cable by the liquid spray plate 3, and then the hot water with a temperature range of 90°C-100°C is sprayed on the cable, cooling the cable for the third time and reducing the temperature of the cable surface.

[0051] In addition, the first tube 2 is fixedly connected to the input end of the heat dissipation pipe 29 through the first water outlet pipe 36. The excess liquid in the first tube 2 will be transported to the heat dissipation pipe 29 in the heat dissipation box 28 through the first water outlet pipe 36, and then the water source flowing through the heat dissipation pipe 29 will be cooled by the heat dissipation mechanism.

[0052] The above-mentioned heat dissipation mechanism includes a heat dissipation plate 30, which is fixedly connected to the inner wall of the heat dissipation box 28, and a heat dissipation hole 31 is opened on the heat dissipation plate 30, and the output end of the heat dissipation hole 31 faces the heat dissipation pipe 29. The placement box 10 is fixedly connected to the installation box 19, and the installation box 19 is fixedly connected to the heat dissipation cylinder 26. The heat dissipation cylinder 26 is slidably connected to the connecting rod 27, and a piston is provided on the connecting rod 27, and the piston is in contact with the inner wall of the heat dissipation cylinder 26. The heat dissipation cylinder 26 is respectively fixedly connected with a first air pipe 39 and a second air pipe 40, and both the first air pipe 39 and the second air pipe 40 are provided with a one-way valve, and the second air pipe 40 is connected to the heat dissipation plate 30.

[0053] When the connecting rod 27 slides back and forth, the connecting rod 27 will drive the piston to move against the inner wall of the heat dissipation cylinder 26. When the connecting rod 27 drives the piston to move toward the inside of the heat dissipation cylinder 26, the gas in the cavity of the heat dissipation cylinder 26 will be compressed. In this process, under the action of the one-way valve, the first air supply pipe 39 stops taking in air, and the gas in the cavity of the heat dissipation cylinder 26 will be transported to the heat dissipation plate 30 through the second air supply pipe 40. When the connecting rod 27 is reset, under the action of the one-way valve, the first air supply pipe 39 starts to take in air, and the outside air will enter the cavity of the heat dissipation cylinder 26. The second air supply pipe 40 stops supplying air, and a diverter cavity is opened in the heat dissipation plate 30, and the diverter cavity is connected to the heat dissipation hole 31. The heat dissipation hole 31 will spray normal temperature gas onto the heat dissipation pipe 29, cool the high-temperature liquid in the heat dissipation pipe 29 by wind, and thereby reduce the temperature of the liquid in the heat dissipation pipe 29.

[0054] In order to drive the connecting rod 27 to move back and forth, a screw rod 24 is rotatably connected in the installation box 19 , and a movable block 25 is threadedly connected to the screw rod 24 . One end of the connecting rod 27 away from the piston is fixedly connected to the movable block 25 .

[0055] In addition, a through hole 32 is provided on the side wall of the heat dissipation box 28 for discharging the hot air in the heat dissipation box 28 to prevent the heat from accumulating in the heat dissipation box 28 .

[0056] In order to cool the liquid in the first tube 2 and then transport it to the water spray plate 5, a transmission disk 20 is fixedly connected in the installation box 19, and a transmission rod 21 is rotatably connected to the transmission disk 20. One end of the transmission rod 21 passes through the transmission disk 20 and is fixedly connected to the screw rod 24. A turbine blade 22 is fixedly connected to the transmission rod 21, and the turbine blade 22 is arranged in the transmission disk 20. The first water outlet pipe 36 is connected to one side of the transmission disk 20, and the other side of the transmission disk 20 is connected to the input end of the heat dissipation pipe 29 through the second water outlet pipe 37.

[0057] The rotating shaft 17 is fixedly connected with a main gear, and the other end of the transmission rod 21 passes through the installation box 19 and extends into the placement box 10 to be fixedly connected with an auxiliary gear 23, which meshes with the main gear.

[0058] When the motor 15 rotates, it will drive the shaft 17 to rotate, so that the shaft 17 drives the main gear to rotate, and the main gear drives the auxiliary gear 23 to rotate, and then drives the transmission rod 21 to rotate, so that the transmission rod 21 drives the turbine blade 22 to rotate in the transmission disk 20, and then the high-temperature liquid in the first tube 2 is transported to the heat dissipation pipe 29 through the second water outlet pipe 37, and then the heat is dissipated by the heat dissipation mechanism, and then transported to the water spray plate 5.

[0059] Furthermore, in order to cool the cable for the fourth time, the fourth cooling mechanism includes a water spraying plate 5 , which is fixedly connected to the inner top of the second through tube 4 , and is connected to the output end of the heat dissipation pipe 29 .

[0060] When the motor 15 is started, the high-temperature liquid in the first tube 2 is transported to the heat dissipation tube 29 through the second water outlet pipe 37, and the heat dissipation tube 29 is in a bent state, and the heat dissipation hole 31 sprays the normal temperature gas onto the heat dissipation tube 29, and the high-temperature liquid in the heat dissipation tube 29 is cooled by wind, thereby reducing the temperature of the liquid in the heat dissipation tube 29, and then the water spraying plate 5 sprays the reduced temperature to the outside of the cable, thereby achieving the fourth cooling effect.

[0061] Through the above four cooling processes, the outside of the cable can be cooled step by step to prevent the outer shell from being uneven on the surface of the insulation layer due to rapid cooling, thereby improving the production quality of wires and cables and increasing their service life.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cooling system for flame-retardant wire and cable production, comprising a cooling box (1), characterized in that: Also includes: The first through tube (2) is fixedly connected in the cavity of the cooling box (1). Wherein, a third cooling mechanism is arranged in the first through tube (2), and the injection ends of the third cooling mechanism are evenly distributed in a circle in the cavity of the cooling box (1); The second through-tube (4) is arranged on one side of the output end of the first through-tube (2). A fourth cooling mechanism is arranged in the second through tube (4), a heat dissipation box (28) is fixedly connected to the bottom of the cooling box (1), a heat dissipation pipe (29) is arranged in the heat dissipation box (28), an output end of the heat dissipation pipe (29) is connected to an input end of the fourth cooling mechanism, and a heat dissipation mechanism is arranged in the heat dissipation box (28) for cooling the outside of the heat dissipation pipe (29); The second precooling box (11) is fixedly connected to the side wall of the cooling box (1). The second precooling box (11) is provided with a second cooling mechanism, the top of the cooling box (1) is fixedly connected to a working box (6), a heating component is provided in the working box (6), a liquid storage box (8) is fixedly connected to the working box (6), and the bottom of the liquid storage box (8) faces the heating component, and the liquid storage box (8) is connected to the input end of the second cooling mechanism; The first precooling box (13) is arranged on one side of the input end of the second precooling box (11), Wherein, a first cooling mechanism is arranged in the first pre-cooling box (13), and an input end of the first cooling mechanism is connected to the working box (6) and cooperates with the heating component.

2. A cooling system for flame-retardant wire and cable production according to claim 1, characterized in that: The first cooling mechanism comprises an air jet plate (14), the air jet plate (14) is fixedly connected in the cavity of the first precooling box (13), the air jet end of the air jet plate (14) faces the cable, a placement box (10) is fixedly connected to the side wall of the cooling box (1), the first precooling box (13) and the second precooling box (11) are both arranged in the placement box (10), a booster disc (16) is fixedly connected in the placement box (10), a rotating shaft (17) is rotatably connected to the booster disc (16), a fan blade (18) is fixedly connected to the rotating shaft (17), and the fan blade (18) is arranged in the booster disc (16), one side of the booster disc (16) is connected to the air jet plate (14) through an air outlet pipe (34), and the other side of the booster disc (16) is connected to the working box (6) through an air inlet pipe (35).

3. A cooling system for flame-retardant wire and cable production according to claim 2, characterized in that: The heating assembly comprises a thermal resistance wire (7) fixedly connected in a working box (6); the liquid storage box (8) is arranged above the heating end of the thermal resistance wire (7); a ventilation pipe is arranged on the working box (6), and the ventilation pipe cooperates with an air outlet pipe (34).

4. A cooling system for flame-retardant wire and cable production according to claim 2, characterized in that: The second cooling mechanism comprises a steam spray plate (12), the steam spray plate (12) is fixedly connected to the inner wall of the second pre-cooling box (11), and the steam spray plate (12) is connected to the top of the liquid storage box (8) through a delivery pipe (33).

5. A cooling system for flame-retardant wire and cable production according to claim 2, characterized in that: The third cooling mechanism comprises a liquid spray plate (3), the liquid spray plate (3) is fixedly connected to the inner wall of the first through tube (2), the liquid spray plate (3) is connected to the side wall of the liquid storage tank (8) through a liquid inlet pipe (41), the first through tube (2) is fixedly connected to the input end of the heat dissipation pipe (29) through a first water outlet pipe (36), a water pump (9) is fixedly connected to the top of the cooling box (1), the output end of the water pump (9) is connected to the liquid storage tank (8) through a pipeline, and a collecting pipe (38) is provided at the bottom of the second through tube (4), and the collecting pipe (38) is fixedly connected to the input end of the water pump (9).

6. A cooling system for flame-retardant wire and cable production according to claim 5, characterized in that: The heat dissipation mechanism comprises a heat dissipation plate (30), the heat dissipation plate (30) is fixedly connected to the inner wall of the heat dissipation box (28), and a heat dissipation hole (31) is opened on the heat dissipation plate (30), and the output end of the heat dissipation hole (31) faces the heat dissipation pipe (29). The placement box (10) is fixedly connected to the installation box (19), and a heat dissipation cylinder (26) is fixedly connected inside the installation box (19). The heat dissipation cylinder (26) is slidably connected to a connecting rod (27), and a piston is provided on the connecting rod (27), and the piston is in contact with the inner wall of the heat dissipation cylinder (26). The heat dissipation cylinder (26) is respectively fixedly connected to a first air supply pipe (39) and a second air supply pipe (40), and both the first air supply pipe (39) and the second air supply pipe (40) are provided with a one-way valve, and the second air supply pipe (40) is connected to the heat dissipation plate (30).

7. A cooling system for flame-retardant wire and cable production according to claim 6, characterized in that: A screw rod (24) is rotatably connected inside the installation box (19), a movable block (25) is threadedly connected to the screw rod (24), and an end of the connecting rod (27) away from the piston is fixedly connected to the movable block (25).

8. A cooling system for flame-retardant wire and cable production according to claim 7, characterized in that: A transmission disc (20) is fixedly connected inside the installation box (19), a transmission rod (21) is rotatably connected to the transmission disc (20), one end of the transmission rod (21) passes through the transmission disc (20) and is fixedly connected to a screw rod (24), a turbine blade (22) is fixedly connected to the transmission rod (21), and the turbine blade (22) is arranged inside the transmission disc (20), the first water outlet pipe (36) is connected to one side of the transmission disc (20), and the other side of the transmission disc (20) is connected to the input end of the heat dissipation pipe (29) through the second water outlet pipe (37).

9. A cooling system for flame-retardant wire and cable production according to claim 2, characterized in that: The rotating shaft (17) is fixedly connected with a main gear, and the other end of the transmission rod (21) passes through the installation box (19) and extends into the placement box (10) to be fixedly connected with an auxiliary gear (23), and the auxiliary gear (23) is meshed with the main gear.

10. A cooling system for flame-retardant wire and cable production according to claim 1, characterized in that: The fourth cooling mechanism comprises a water spraying plate (5), the water spraying plate (5) is fixedly connected to the inner top of the second through tube (4), and the water spraying plate (5) is connected to the output end of the heat dissipation pipe (29).

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