A cable production cooling device

Abstract

This invention belongs to the field of cable production technology, and specifically relates to a cable production cooling device, including a mounting plate. A cooling water tank and a water reservoir are fixedly connected to the upper side wall of the mounting plate. An inlet pipe and a return pipe connect the cooling water tank and the water reservoir. A water pump is fixedly connected to the upper side wall of the water reservoir. When cooling colored cables, this invention isolates the colored cables from the circulating cooling water, preventing the coloring pigments in the colored sheath from leaching out and dissolving in the water to form colored water and suspended pigment particles. This eliminates problems such as color spots, dirt, surface fogging, turbidity, and batch color differences caused by water impurities and secondary adhesion of pigment particles to the cable. Simultaneously, it avoids the curing color differences and water stain defects caused by turbulent water flow and uneven water quality in open water tanks, ensuring uniform curing of the color masterbatch on the surface of the colored cable, resulting in a full and consistent color, and improving the appearance and production yield of the colored cable.

Description

Technical Field

[0001] This invention belongs to the field of cable production technology, and in particular relates to a cable production cooling device. Background Technology

[0002] Polyethylene insulated power cables can be made into colored cables according to usage requirements. After the insulation and sheath layers of such colored cables are extruded at high temperature using extrusion equipment, the cable body is in a molten high-temperature condition. At this stage, the material is relatively soft, the overall structure has not yet solidified, and the external dimensions and physical properties have not reached a stable state. At present, the cooling and shaping process of such colored cables generally uses traditional water cooling devices. If timely and accurate cooling and shaping are not achieved, the cable will have dimensional defects such as deformation, bulging, insulation eccentricity, and out-of-tolerance ellipticity. Moreover, the internal molecular structure of the material is difficult to solidify normally, which will lead to quality problems such as residual internal stress, micropores, and loose structure.

[0003] Currently, the molding and processing of polyethylene insulated colored cables generally uses traditional water cooling devices for the cooling and shaping process. Traditional water cooling is mostly an open water tank cooling structure. The turbulent flow of water in the water tank will directly lead to uneven and unstable cooling rate of colored cables. This will easily result in uneven color depth, local fading, dark color, and uneven gloss of cables in the same batch, which will greatly reduce the appearance consistency and aesthetics of the finished product. At the same time, water film residue and water stains are easy to be generated on the surface of the cable during the cooling process of traditional water cooling devices. After drying, irregular marks will be formed on the surface of the colored sheath, causing color difference defects in the finished product.

[0004] Meanwhile, the pigments in colored cables are prone to leaching out in trace amounts and dissolving in the circulating water. On the one hand, this causes the cooling water to remain colored and pollute the water's color. This causes the suspended pigment particles in the water to be repeatedly adsorbed and attached to the surface of the cables that pass through subsequently, resulting in batch color difference defects such as secondary staining, graying, fogging, turbidity, and uneven color depth in the entire batch of colored cables. On the other hand, the pigments dissolved in the water will mix with scale and impurities to form colored stain particles. After they adhere and solidify, they form difficult-to-remove spots and dirt. At the same time, continuous dissolution of pigments will cause the pigments on the surface of the cable to be lost, resulting in the color of the cable body becoming lighter and the color saturation insufficient.

[0005] Therefore, a cable production cooling device is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing a cooling device for cable production.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a cable production cooling device, comprising a mounting plate, wherein a cooling water tank and a water reservoir are fixedly connected to the upper side wall of the mounting plate, an inlet pipe and a return pipe are connected between the cooling water tank and the water reservoir, a water pump is fixedly connected to the upper side wall of the water reservoir, a vertical pipe is connected to the outlet end of the water pump, the lower end of the vertical pipe is connected to the inlet pipe, a first control valve is provided inside the vertical pipe, and further comprising:

[0008] An air-cooling component, located on the upper side wall of the mounting plate, is capable of providing initial cooling for the cable.

[0009] The nozzle assembly is located above the cooling water tank. The nozzle assembly is equipped with a liquid cooling protection component, which can prevent the colored cable from directly contacting the circulating water while the colored cable is cooled by water.

[0010] A guide component, disposed within the liquid-cooled protection component, enables the liquid-cooled protection component to maintain a suitable curvature.

[0011] Preferably, the air-cooling assembly includes a support plate fixedly connected to the side wall of the mounting plate, an air-cooling cylinder fixedly connected to the upper side wall of the support plate, the air-cooling cylinder having a hollow structure, a plurality of air-cooling rings fixedly connected to the inner wall of the air-cooling cylinder, and an air pump fixedly connected to the upper side wall of the mounting plate, the air outlet of the air pump being connected to the air-cooling cylinder.

[0012] Preferably, the nozzle assembly includes a horizontal pipe located above the cooling water tank, a metal pipe fixedly connected to the outlet end of the water pump, a second control valve being provided inside the metal pipe, the end of the metal pipe away from the water pump being connected to the horizontal pipe, a plurality of short pipes being fixedly connected to the lower side wall of the horizontal pipe, an annular pipe being fixedly connected to the lower end of the short pipes, the annular pipe having a hollow structure, and a plurality of spray heads being distributed in a ring on the inner wall of the annular pipe.

[0013] Preferably, the liquid-cooled protection assembly includes two vertical plates, both of which are connected to the outer wall of the cooling water tank via a bracket. Two electric push rods are fixedly connected to the side wall of each vertical plate. The moving end of each electric push rod passes through the vertical plate and is fixedly connected to an electric transmission wheel. The two electric transmission wheels on the same side are fitted with the same conveyor belt. Two sealing strips are fixedly connected to the side wall of the front conveyor belt, and two sealing grooves matching the sealing strips are opened on the side wall of the rear conveyor belt.

[0014] Preferably, the guiding assembly includes a connecting plate fixedly connected to the sidewalls of two electric conveyor wheels on the same side. A connecting frame is fixedly connected to the lower sidewall of the connecting plate. The connecting frame has an inverted T-shaped structure. Two arc-shaped plates are fixedly connected to the lower end of the connecting frame. Multiple guide plates are fixedly connected to the inner wall of the conveyor belt. The guide plates have a T-shaped structure. Multiple guide grooves matching the guide plates are opened on the sidewalls of the arc-shaped plates.

[0015] Preferably, the inner wall of the conveyor belt is fixedly connected to two extrusion strips, which are in contact with the arc-shaped plate, and neither the extrusion strips nor the guide plate are in contact with the rotating part of the electric conveyor wheel.

[0016] Preferably, upper guide wheels are fixedly connected to the outer walls of both sides of the cooling water tank via brackets, and lower guide wheels are fixedly connected to the inner walls of both sides of the cooling water tank.

[0017] Preferably, a plurality of semiconductor cooling plates are inserted into the side wall of the water tank, with the heat-dissipating end of the semiconductor cooling plate extending out of the water tank and the cooling end of the semiconductor cooling plate in contact with the circulating water inside the water tank.

[0018] Compared with existing technologies, the advantages of a cable production cooling device are:

[0019] 1. By using the nozzle assembly, liquid cooling protection assembly, and guide assembly, the colored cable is isolated from the circulating cooling water during the cooling process. This prevents the coloring pigments in the colored sheath from leaching out and dissolving in the water to form colored water and suspended pigment particles. It also eliminates problems such as color spots, dirt spots, surface fogging, turbidity, and batch color differences caused by water impurities and pigment particles adhering to the cable. At the same time, it avoids the curing color difference and water stain defects caused by the turbulent water flow and uneven water quality in the open water tank. This ensures that the color masterbatch on the surface of the colored cable is cured evenly and the color is full and consistent, improving the appearance and production yield of the colored cable.

[0020] 2. By adding a pre-cooling process before liquid cooling of the cable through the air-cooling component, the high-temperature colored cable that has just been extruded can be pre-cooled and the surface pre-cured. This can quickly shape the surface of the colored sheath of the cable and effectively avoid the problems of uneven curing of the color masterbatch, color mottledness, and inconsistent gloss caused by sudden cooling due to high temperature when directly contacting the coolant.

[0021] 3. Through the set nozzle assembly, a full-coverage, dead-angle-free, uniform and stable annular cooling water flow can be formed around the circumference of the cable, realizing synchronous gradient cooling in the circumference. This solves the drawbacks of the disordered water flow and uneven cooling of traditional open water tanks, ensuring that the curing rate of the color masterbatch is consistent throughout the cable sheath, and avoiding problems such as local color difference, uneven gloss and shrinkage texture. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a cable production cooling device provided by the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of a liquid-cooled protection component in a cable production cooling device provided by the present invention;

[0024] Figure 3 This is a schematic diagram of the nozzle assembly in a cable production cooling device provided by the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of a guide component in a cable production cooling device provided by the present invention;

[0026] Figure 5 This is a schematic diagram of the surface structure of the arc-shaped plate in a cable production cooling device provided by the present invention.

[0027] In the diagram: 1 Mounting plate, 2 Cooling water tank, 3 Water tank, 4 Inlet pipe, 5 Return pipe, 6 Water pump, 7 Vertical pipe, 8 First control valve, 9 Air-cooled assembly, 91 Support plate, 92 Air-cooled cylinder, 10 Air-cooled ring, 11 Air pump, 12 Nozzle assembly, 121 Horizontal pipe, 122 Metal pipe, 13 Second control valve, 14 Short pipe, 15 Ring pipe, 16 Spray head, 17 Liquid-cooled protection assembly, 171 Vertical plate, 172 Electric push rod, 18 Electric transmission wheel, 19 Conveyor belt, 20 Sealing strip, 21 Sealing groove, 22 Guide assembly, 221 Connecting plate, 222 Connecting frame, 23 Arc plate, 24 Guide plate, 25 Guide groove, 26 Extrusion strip, 27 Upper guide wheel, 28 Lower guide wheel, 29 Semiconductor cooling plate. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] like Figures 1-3 As shown, a cable production cooling device includes a mounting plate 1. A cooling water tank 2 and a water tank 3 are fixedly connected to the upper side wall of the mounting plate 1. Upper guide wheels 27 are fixedly connected to the outer walls of both sides of the cooling water tank 2 via brackets. Lower guide wheels 28 are fixedly connected to the inner walls of both sides of the cooling water tank 2. An inlet pipe 4 and a return pipe 5 are connected between the cooling water tank 2 and the water tank 3. A water pump 6 is fixedly connected to the upper side wall of the water tank 3. The outlet end of the water pump 6 is connected to a vertical pipe 7. The lower end of the vertical pipe 7 is connected to the inlet pipe 4. A first control valve 8 is provided inside the vertical pipe 7. Multiple semiconductor cooling plates 29 are inserted into the side wall of the water tank 3. The heat-releasing end of the semiconductor cooling plate 29 extends out of the water tank 3, and the cooling end of the semiconductor cooling plate 29 contacts the circulating water in the water tank 3. The device also includes:

[0030] The air-cooling assembly 9 is disposed on the upper side wall of the mounting plate 1. The air-cooling assembly 9 includes a support plate 91 fixedly connected to the upper side wall of the mounting plate 1. An air-cooling cylinder 92 is fixedly connected to the upper side wall of the support plate 91. The air-cooling cylinder 92 has a hollow structure. Multiple air-cooling rings 10 are fixedly connected to the inner wall of the air-cooling cylinder 92. An air pump 11 is fixedly connected to the upper side wall of the mounting plate 1. The air outlet of the air pump 11 is connected to the air-cooling cylinder 92, which can perform initial cooling treatment on the cable.

[0031] The nozzle assembly 12 is positioned above the cooling water tank 2. The nozzle assembly 12 includes a horizontal pipe 121 located above the cooling water tank 2. A metal pipe 122 is fixedly connected to the outlet end of the water pump 6. A second control valve 13 is installed inside the metal pipe 122. The end of the metal pipe 122 away from the water pump 6 is connected to the horizontal pipe 121. Multiple short pipes 14 are fixedly connected to the lower side wall of the horizontal pipe 121. An annular pipe 15 is fixedly connected to the lower end of each short pipe 14. The annular pipe 15 has a hollow structure, and multiple spray heads 16 are distributed annularly on its inner wall. A liquid-cooled protection assembly 17 is installed inside the nozzle assembly 12. The liquid-cooled protection assembly 17 includes two... Vertical plate 171, both vertical plates 171 are connected to the outer wall of the cooling water tank 2 through the bracket. Two electric push rods 172 are fixedly connected to the side wall of the vertical plate 171. The moving end of the electric push rod 172 passes through the vertical plate 171 and is fixedly connected to an electric conveyor wheel 18. The two electric conveyor wheels 18 on the same side are covered with the same conveyor belt 19. Two sealing strips 20 are fixedly connected to the side wall of the front conveyor belt 19. Two sealing grooves 21 that match the sealing strips 20 are opened on the side wall of the rear conveyor belt 19. This can prevent the colored cable from directly contacting the circulating water while the colored cable is cooled by water.

[0032] The guide assembly 22 is disposed within the liquid-cooled protective assembly 17. The guide assembly 22 includes a connecting plate 221 fixedly connected to the side wall of two electric conveyor wheels 18 on the same side. A connecting frame 222 is fixedly connected to the lower side wall of the connecting plate 221. The connecting frame 222 has an inverted T-shaped structure. Two arc-shaped plates 23 are fixedly connected to the lower end of the connecting frame 222. Multiple guide pieces 24 are fixedly connected to the inner wall of the conveyor belt 19. The guide pieces 24 have a T-shaped structure. Multiple guide grooves 25 that match the guide pieces 24 are opened on the side wall of the arc-shaped plates 23. Two extrusion strips 26 are fixedly connected to the inner wall of the conveyor belt 19. The extrusion strips 26 contact the arc-shaped plates 23. Neither the extrusion strips 26 nor the guide pieces 24 contact the rotating part of the electric conveyor wheels 18, which enables the liquid-cooled protective assembly 17 to maintain a suitable curvature.

[0033] The operating principle of the present invention is explained as follows: When the colored cable needs to be cooled, one end of the colored cable is passed between the air-cooling cylinder 92 and the two vertical plates 171. Then, the operator sends an electrical signal to the external controller through an external switch. After receiving the electrical signal, the controller will control the electric push rods 172 on both sides to work. The electric push rods 172 will drive the electric conveyor wheel 18 to move closer to the colored cable, so that the conveyor belt 19 on the surface of the electric conveyor wheel 18 comes into contact with the colored cable. The two conveyor belts 19 cover the outside of the colored cable. At the same time, through the sealing effect of the sealing strip 20 and sealing groove 21 on the surface of the two conveyor belts 19, the circulating cooling water and the colored cable can be prevented from directly contacting each other in the subsequent circulating cooling water cooling process.

[0034] Next, the controller controls the external pulling equipment to pull the colored cable to move for subsequent operations. Simultaneously, the controller controls the air pump 11, water pump 6, and electric transmission wheel 18 to work synchronously. The air pump 11 delivers external gas to the air-cooling cylinder 92 and blows it onto the colored cable through the air-cooling ring 10, initially cooling the cable. The water pump 6 delivers the circulating coolant from the water tank 3, after being cooled by the semiconductor cooling plate 29, through the metal pipe 122 (with the second control valve 13 in the metal pipe 122 open) to the horizontal pipe 121, and then through the short pipe 14 to the annular pipe 15, finally through multiple annularly arranged water nozzles 16. The circulating coolant is sprayed onto the surface of the conveyor belt 19, and the electric conveyor wheel 18 (the fixed part of the electric conveyor wheel 18 is equipped with a scraper, which is not shown in the figure, and can clean the residual water stains on the surface of the conveyor belt 19 to prevent the residual water stains from contacting the colored cable) drives the conveyor belt 19 to rotate synchronously with the moving speed of the colored cable, so that the colored cable moves in multiple annular tubes 15. In this way, the circulating cooling water is used to cool the colored cable in the conveyor belt 19, and it can prevent the color pigment in the colored sheath from leaching out and being lost, dissolving in the water to form colored water and suspended pigment particles, causing batch color difference problems.

[0035] The above are merely 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 within the protection scope of the present invention.

Claims

1. A cable production cooling device, comprising a mounting plate (1), wherein a cooling water tank (2) and a water tank (3) are fixedly connected to the upper side wall of the mounting plate (1), an inlet pipe (4) and a return pipe (5) are connected between the cooling water tank (2) and the water tank (3), a water pump (6) is fixedly connected to the upper side wall of the water tank (3), a vertical pipe (7) is connected to the outlet end of the water pump (6), the lower end of the vertical pipe (7) is connected to the inlet pipe (4), and a first control valve (8) is provided inside the vertical pipe (7), characterized in that, Also includes: The air-cooled assembly (9) is disposed on the upper side wall of the mounting plate (1) and is capable of performing initial cooling treatment on the cable; The nozzle assembly (12) is located above the cooling water tank (2). The nozzle assembly (12) is equipped with a liquid cooling protection component (17), which can prevent the colored cable from directly contacting the circulating water while the colored cable is cooled by water. The guide component (22), disposed within the liquid-cooled protective component (17), enables the liquid-cooled protective component (17) to maintain a suitable curvature.

2. The cable production cooling device according to claim 1, characterized in that, The air-cooled assembly (9) includes a support plate (91) fixedly connected to the upper side wall of the mounting plate (1). An air-cooled cylinder (92) is fixedly connected to the upper side wall of the support plate (91). The air-cooled cylinder (92) has a hollow structure. Multiple air-cooled rings (10) are fixedly connected to the inner wall of the air-cooled cylinder (92). An air pump (11) is fixedly connected to the upper side wall of the mounting plate (1). The air outlet of the air pump (11) is connected to the air-cooled cylinder (92).

3. The cable production cooling device according to claim 1, characterized in that, The nozzle assembly (12) includes a horizontal pipe (121) located above the cooling water tank (2). The outlet end of the water pump (6) is fixedly connected to a metal pipe (122). A second control valve (13) is provided inside the metal pipe (122). The end of the metal pipe (122) away from the water pump (6) is connected to the horizontal pipe (121). The lower side wall of the horizontal pipe (121) is fixedly connected to multiple short pipes (14). The lower end of the short pipes (14) is fixedly connected to an annular pipe (15). The annular pipe (15) has a hollow structure. Multiple spray heads (16) are distributed in a ring on the inner wall of the annular pipe (15).

4. A cable production cooling device according to claim 3, characterized in that, The liquid-cooled protective assembly (17) includes two vertical plates (171). Both vertical plates (171) are connected to the outer wall of the cooling water tank (2) through a bracket. Two electric push rods (172) are fixedly connected to the side wall of the vertical plate (171). The moving end of the electric push rod (172) passes through the vertical plate (171) and is fixedly connected to an electric transmission wheel (18). The two electric transmission wheels (18) on the same side are covered with the same conveyor belt (19). Two sealing strips (20) are fixedly connected to the side wall of the front conveyor belt (19). Two sealing grooves (21) that match the sealing strips (20) are opened on the side wall of the rear conveyor belt (19).

5. A cable production cooling device according to claim 4, characterized in that, The guide assembly (22) includes a connecting plate (221) fixedly connected to the side wall of two electric conveyor wheels (18) on the same side. A connecting frame (222) is fixedly connected to the lower side wall of the connecting plate (221). The connecting frame (222) has an inverted T-shaped structure. Two arc-shaped plates (23) are fixedly connected to the lower end of the connecting frame (222). A plurality of guide pieces (24) are fixedly connected to the inner wall of the conveyor belt (19). The guide pieces (24) have a T-shaped structure. A plurality of guide grooves (25) matching the guide pieces (24) are opened on the side wall of the arc-shaped plate (23).

6. A cable production cooling device according to claim 5, characterized in that, The inner wall of the conveyor belt (19) is fixedly connected to two extrusion strips (26), which are in contact with the arc plate (23). Neither the extrusion strips (26) nor the guide plate (24) are in contact with the wheel part of the electric conveyor wheel (18).

7. A cable production cooling device according to claim 1, characterized in that, The upper guide wheel (27) is fixedly connected to the outer walls of the left and right sides of the cooling water tank (2) by a bracket, and the lower guide wheel (28) is fixedly connected to the inner walls of the left and right sides of the cooling water tank (2).

8. A cable production cooling device according to claim 1, characterized in that, Multiple semiconductor cooling plates (29) are inserted into the side wall of the water tank (3). The heat-dissipating end of the semiconductor cooling plate (29) extends out of the water tank (3), and the cooling end of the semiconductor cooling plate (29) is in contact with the circulating water in the water tank (3).

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