Multi-stage efficient cooling device for wire and cable production

Abstract

The invention relates to the technical field of cable production, in particular to a multi-stage efficient cooling device for wire and cable production, which comprises a cooling box and a spraying box positioned on one side of the cooling box, the interior of the cooling box is divided into a plurality of cooling cavities through partition plates, and a plurality of guide riding wheels are rotationally mounted at the tops of the partition plates; guide pressing wheels matched with the guide riding wheels on the two sides are arranged in the cooling cavity, and water conveying units are arranged on the sides, away from the spraying box, of the partition plate and the cooling box correspondingly. According to the cable cooling device, the multiple cooling cavities in the cooling box are combined with the water conveying unit to achieve step-by-step cooling treatment on the cable, then the water wiping unit is combined to wipe water on the surface of the cable, and meanwhile cooling water is promoted to be conveyed to the upper-stage cooling cavity, make rapid contact with the cable and be fully mixed and then conveyed to the other cooling cavities; and the sudden drop protection of the cable is ensured while the cooling effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable production, and in particular to a multi-stage high-efficiency cooling device for wire and cable production. Background Art

[0002] Wires and cables are wire products that transmit electrical energy, information, and realize electromagnetic energy conversion. Their structure usually includes an internal conductor, a coating, a total protective layer, and an outer sheath. The outer sheath is mostly made of insulating materials to enhance the safety and durability of the cable. During the production process, the insulating material is first melted and then evenly coated on the outside of the copper core of the cable to form a protective layer. In order to accelerate the solidification and molding of the insulating protective layer, a cable cooling system is required to effectively cool it.

[0003] For example, in the prior art, a cable cooling device for cable manufacturing and a method of using the same are disclosed with publication number CN116682615A. The device places the cable in cooling water in a cooling box and cools the cooling water with a cooling plate. Although this device can achieve a rapid cooling effect after cable production, the cooling water in the cooling box has the same temperature, so the cable is cooled by an instantaneous sudden drop. Since step-by-step protective cooling cannot be achieved, the cable insulation layer is prone to cracking when the temperature suddenly drops, thereby reducing the quality of the cable.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the Invention

[0005] The object of the present invention is to provide a multi-stage high-efficiency cooling device for wire and cable production to solve the above-mentioned technical defects.

[0006] The object of the present invention can be achieved by the following technical solution: A multi-stage high-efficiency cooling device for wire and cable production, comprising a cooling box and a spray box located on one side thereof, wherein the interior of the cooling box is divided into multiple cooling chambers by a partition, and a plurality of guide rollers are rotatably mounted on the top of the partition, and a first rotating rod fixedly connected to the guide rollers is rotatably connected to the top of the partition; The cooling chamber is provided with guide pressure wheels that cooperate with the guide rollers on both sides, the partition and the side of the cooling box away from the spray box are both provided with water delivery units, the cooling chamber is provided with a water wiping unit that cooperates with the water delivery unit, and the bottom of the cooling box is installed with a cooling device; The water delivery unit includes a plurality of water delivery pipes equidistantly installed on the partition, and a V-shaped tube with an arc-shaped cross-section is fixedly connected to the water delivery pipe, and the inner concave side of the V-shaped tube is densely covered with water outlet holes. The water wiping unit includes a plurality of reciprocating screws, and a sponge wiping roller is fixedly installed on the reciprocating screws.

[0007] Preferably, an L-shaped frame is fixedly connected to one side of the cooling box, and a pressure plate is connected to the L-shaped frame through an electric push rod. A square tube is installed on the pressure plate, and a square rod sliding with the square tube is connected to the square tube through a spring, and the guide pressure wheel is rotatably installed with the corresponding square rod.

[0008] Preferably, the cooling box and the partition are respectively installed with a diversion pipe 1 and a diversion pipe 2 connected to the corresponding water pipes, a wavy spray pipe is installed on the top of the spray box, and the cooling equipment is respectively connected to the diversion pipe 1 and the spray box with a water outlet pipe and a water inlet pipe.

[0009] Preferably, a water pump is installed in the cooling cavity close to the spray box, and a water injection pipe is connected between the water outlet of the water pump and the spray pipe.

[0010] Preferably, a plurality of water injection cylinders are connected to the second diversion pipe, and a water injection piston is slidably connected inside the water injection cylinder. The water injection cylinder is installed with a water inlet one-way valve and a water outlet one-way valve connected to the second diversion pipe.

[0011] Preferably, a stirring frame is threadedly connected to the reciprocating screw, and a support rod is connected between the end of the stirring frame and the corresponding water injection piston.

[0012] Preferably, a fixed block that rotates with the reciprocating screw is fixedly installed on the partition, and a bevel gear 1 is installed at one end of the reciprocating screw, and a bevel gear 2 that engages with the staggered axis of the bevel gear 1 is installed on the first rotating rod, and a second rotating rod is rotatably connected to both sides of the top of the cooling box, and a guide wheel is fixed to the second rotating rod.

[0013] Preferably, the fixed block is slidably connected to an L-shaped seat, and two sets of rotating rollers are rotatably connected to the L-shaped seat, and the rotating rollers are connected through a filter rotating belt transmission. Both sides of the stirring frame are fixedly connected to linkage guide rods slidably connected to the L-shaped seat.

[0014] The beneficial effects of the present invention are as follows: (1) The present invention first divides the interior of the cooling box into multiple cooling chambers through multiple partitions, combines guide rollers and guide pressure rollers to achieve a multi-stage cooling treatment effect for the cable, and then injects cooling water into one cooling chamber through the cooling equipment, and cooperates with the water pipe to flow the cooling water to the remaining cooling chambers. In this process, the cable uses the cooling water in the cooling chamber to perform heat exchange treatment, which causes the cooling water temperature in multiple cooling chambers to gradually increase, thereby achieving a step-by-step cooling treatment for the cable, which can effectively avoid the problem of cracking of the protective layer caused by direct contact between low-temperature cooling water and the cable; in addition, the V-shaped tube can quickly wrap the next stage of lower-temperature cooling water in contact with the cable before it is fully mixed with the current higher-temperature cooling water, thereby improving the cooling effect on the cable; (2) The present invention uses the movement of the cable to drive the rotation of the guide wheel, which in turn drives the reciprocating screw to rotate. The reciprocating screw drives the sponge wiping roller to absorb and wipe the moisture on the surface of the cable, while driving the stirring frame to move back and forth, thereby achieving full mixing of low-temperature cooling water and high-temperature cooling water, so as to prevent the lower-temperature cooling water from entering the other cooling chambers in a cross-stage manner, thereby reducing the protective effect of the gradual cooling on the cable; The stirring rack can push the water injection piston to move in the water injection cylinder, thereby improving the cooling water delivery effect and further accelerating the rapid contact of cooling water with the cable in the upper cooling chamber. In addition, it also pushes the filter screen to rotate and intermittently squeeze and contact with the sponge wiping roller, prompting the water in the sponge wiping roller to be squeezed out, so that the sponge wiping roller can efficiently wipe the moisture on the cable surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings; Figure 1 This is a schematic diagram of the structure of the present invention Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the cooperation between the cooling box and the water delivery unit of the present invention; Figure 4 This is a schematic diagram of the coordination between the water delivery unit and the water wiping unit of the present invention; Figure 5 It is a structural schematic diagram of the partition of the present invention; Figure 6 It is a structural schematic diagram of the water delivery unit of the present invention; Figure 7 It is a structural schematic diagram of the water wiping unit of the present invention; Figure 8 It is a structural schematic diagram of the pressing plate of the present invention; Figure 9 It is a schematic diagram of the state when the water delivery unit and the water wiping unit of the present invention cooperate to cool the cable.

[0016] Legend: 1. Cooling box; 11. Spray box; 12. Partition; 13. Guide roller; 14. First rotating rod; 15. Cooling equipment; 16. L-shaped frame; 17. Spray pipe; 18. Water outlet pipe; 19. Water inlet pipe; 110. Water pump; 111. Water injection pipe; 112. Helical gear 2; 2. Water delivery unit; 21. Water delivery pipe; 22. V-shaped pipe; 23. Diverter pipe 1; 24. Diverter pipe 2; 25. Water injection cylinder; 26. Water injection piston; 3. Wiping unit; 31. Reciprocating screw; 32. Sponge wiping roller; 33. Stirring frame; 34. Fixed block; 35. Bevel gear 1; 36. L-shaped seat; 37. Rotating roller; 38. Filter rotating belt; 39. Linkage guide rod; 4. Pressing plate; 41. Electric push rod; 42. Square tube; 43. Spring; 44. Square rod; 45. Guide pressure wheel. DETAILED DESCRIPTION

[0017] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figures 1-9 As shown, the existing technology uses a sudden cooling method, which causes the cable insulation layer to crack easily, thereby reducing the quality of the cable. This problem can be solved by the following solution: In this embodiment, a multi-stage high-efficiency cooling device for wire and cable production includes a cooling box 1 and a spray box 11 located on one side thereof, which is used for preliminary cooling treatment of the cable after production. The interior of the cooling box 1 is divided into multiple cooling chambers by a partition 12, and the cable is subjected to multi-stage immersion cooling treatment, thereby achieving efficient cooling treatment. In addition, multiple guide rollers 13 are rotatably installed on the top of the partition 12. The multiple guide rollers 13 can simultaneously cool multiple cables, thereby improving the applicability of the device. The top of the partition 12 is rotatably connected to a first rotating rod 14 fixed to the guide roller 13, which is used for equidistant installation of multiple guide rollers 13. A guide pressure roller 45 is provided in the cooling chamber to cooperate with the guide rollers 13 on both sides. It is used to cooperate with the guide rollers 13 to cause the cable to move in a wave-like shape, thereby facilitating the cable to be pushed into multiple cooling chambers for multi-stage cooling treatment. A water delivery unit 2 is provided on both the partition 12 and the cooling box 1 on the side away from the spray box 11; The low-temperature cooling water on one side is transported to the other cooling chambers in a flowing manner. In this process, the cooling water in the cooling chamber is heat-exchanged by the cable, causing the cooling water temperature in multiple cooling chambers to gradually increase, thereby achieving a step-by-step cooling treatment for the cable. This can effectively avoid the problem of cracking of the protective layer caused by direct contact between the low-temperature cooling water and the cable; A water wiping unit 3 is provided in the cooling chamber to cooperate with the water supply unit 2, which is used to wipe the moisture on the surface of the cable coming out of the cooling chamber. A cooling device 15 is installed at the bottom of the cooling box 1 to cool the high-temperature cooling water after heat exchange, thereby achieving the effect of recycling cooling water.

[0019] The water delivery unit 2 includes a plurality of water delivery pipes 21 equidistantly mounted on the partition 12. A V-shaped pipe 22 with an arc-shaped cross section is fixedly connected to the water delivery pipe 21. Water outlet holes are densely distributed on the concave side of the V-shaped pipe 22. The V-shaped pipe 22 allows the cooling water of the next lower temperature to be quickly wrapped around the cable before being fully mixed with the cooling water of the current higher temperature, thereby improving the cooling effect on the cable and maximizing the cooling effect of the cooling water on the cable. Through multiple water pipes 21 and V-shaped tubes 22, multiple cables can be cooled quickly and efficiently at the same time. The wiping unit 3 includes multiple sets of reciprocating screws 31, and a sponge wiping roller 32 is fixedly installed on the reciprocating screw 31. When the guide pressure wheel 45 cooperates with the guide support wheel 13 to cause the cable to be in a wavy shape, the cable can contact the sponge wiping roller 32. The reciprocating screw 31 carries the sponge wiping roller 32 to rotate, and the moisture on the surface of the cable coming out of the cooling chamber is wiped and absorbed.

[0020] An L-shaped frame 16 is fixedly connected to one side of the cooling box 1, and a pressure plate 4 is connected to the L-shaped frame 16 via an electric push rod 41. A guide rod that slides with the L-shaped frame 16 is installed on the pressure plate 4 to increase the installation stability of the pressure plate 4. A square tube 42 is installed on the pressure plate 4, and a square rod 44 that slides with the square tube 42 is connected to the square tube 42 via a spring 43. A guide pressure wheel 45 is rotatably installed with the corresponding square rod 44; After the multiple cables produced are passed through the spray box 11, they are placed on the corresponding multiple guide rollers 13 in turn. The electric push rod 41 drives the pressure plate 4 to move downward, and the cables between the two adjacent groups of partitions 12 are pressed down into the cooling water in the cooling chamber through the guide pressure wheel 45 on the square rod 44. The cables are in contact with the sponge wiping rollers 32 on both sides. The spring 43 is used to ensure the autonomous adjustment of the tension of the cable during movement, thereby improving the protection effect of the cable.

[0021] The cooling box 1 and the partition 12 are respectively equipped with a shunt pipe 1 23 and a shunt pipe 24 that communicate with the corresponding water pipe 21. The cooling water in the multiple cooling chambers is combined with the movement of the cable to perform a multi-stage cooling process. The cable contacts the cooling water in the multiple cooling chambers, and the water pipe 21 is used to flow and transport water in a step-by-step manner, so that the temperature of the cooling water in the multiple cooling chambers is gradually increased from the water outlet pipe 18 to the water inlet pipe 19. A wavy spray pipe 17 is installed on the top of the spray box 11 to increase the spray range and thus improve the initial cooling effect on the cable. The cooling device 15 is connected to the diverter pipe 23 and the spray box 11 respectively with a water outlet pipe 18 and a water inlet pipe 19; The cooling device 15 draws high-temperature water from the spray box 11 through the water inlet pipe 19 for cooling treatment, and then injects the cooling water into the diversion pipe 23 through the water outlet pipe 18, and then injects it into the corresponding V-shaped tube 22 through multiple water pipes 21. It is then sprayed out through the water outlet holes on the concave side of the V-shaped tube 22 and quickly contacts the cables in the cooling chamber for efficient cooling treatment.

[0022] A water pump 110 is installed in the cooling chamber near the spray box 11, and a water injection pipe 111 is connected between the water outlet of the water pump 110 and the spray pipe 17. The cooling water in the cooling chamber near the spray box 11 is extracted by the water pump 110, and injected into the spray pipe 17 through the water injection pipe 111 and sprayed out to perform preliminary cooling treatment on the cable. The heat exchange carried by the cooling water in the cooling chamber can avoid the problem of poor quality of the protective layer caused by a sudden drop in cable temperature.

[0023] A stirring frame 33 is threadedly connected to the reciprocating screw 31. The rotation of the reciprocating screw 31 drives the stirring frame 33 to move back and forth in the cooling chamber, accelerating the mixing of low-temperature cooling water and high-temperature cooling water to prevent the lower-temperature cooling water from entering the other cooling chambers in a step-by-step manner, thereby reducing the protective effect of gradual cooling on the cable, and a support rod is connected between the end of the stirring frame 33 and the corresponding water injection piston 26.

[0024] A fixed block 34 is fixedly mounted on the partition 12 and rotates with the reciprocating screw 31. A bevel gear 1 35 is mounted on one end of the reciprocating screw 31. A bevel gear 2 112 is mounted on the first rotating rod 14 and meshes with the bevel gear 1 35 at an intersecting axis. The movement of the cable drives the guide roller 13 to rotate, forcing the first rotating rod 14 to rotate accordingly. The bevel gear 1 35 and the bevel gear 2 112 meshing at an intersecting axis drive the multiple reciprocating screws 31 in the cooling chamber to rotate. The size of bevel gear 1 35 is smaller than that of bevel gear 2 112. At this time, when the first rotating rod 14 rotates, it drives the reciprocating screw 31 to rotate rapidly. The top two sides of the cooling box 1 are both rotatably connected with the second rotating rod, and the second rotating rod is fixed with a guide wheel for guiding the cable into the cooling box 1 and out of the cooling box 1.

[0025] An L-shaped seat 36 is slidably connected to the fixed block 34, and two sets of rotating rollers 37 are rotatably connected to the L-shaped seat 36. The rotating rollers 37 are connected to each other through a filter rotating belt 38. The rotating rollers 37 and the filter rotating belt 38 are arranged to prevent interference with the rotation of the sponge wiping roller 32. Both sides of the stirring frame 33 are fixedly connected to linkage guide rods 39 that are slidably connected to the L-shaped seat 36. A trapezoidal groove is provided on the top of the linkage guide rod 39. With the movement of the stirring frame 33, the linkage guide rod 39 is driven to move. The inclined surface on the linkage guide rod 39 contacts the corresponding L-shaped seat 36, pushing the L-shaped seat 36 to move upward, prompting the filter rotating belt 38 on the periphery of the rotating roller 37 to be in squeeze-type contact with the corresponding sponge wiping roller 32, squeezing out the water in the sponge wiping roller 32, prompting the sponge wiping roller 32 to rotate continuously to efficiently wipe the moisture on the cable surface, and the provided linkage guide rod 39 can prompt the stirring frame 33 to reciprocate under the push of the reciprocating screw 31.

[0026] Example 2: Please refer to Figure 4-Figure 7 and Figure 9 As shown, the problem that the cooling water only flows naturally and it is difficult to improve the step-by-step cooling process can be solved by the following solution; In this embodiment, multiple water injection cylinders 25 are connected to the diversion pipe 24, and the water injection cylinder 25 is slidably connected to the inside of the water injection cylinder 25. The water injection cylinder 25 is installed with a water inlet check valve and a water outlet check valve connected to the diversion pipe 24. When the water injection piston 26 moves away from the diversion pipe 24, the cooling water in the cooling chamber is extracted through the water inlet check valve. When the water injection piston 26 moves close to the diversion pipe 24, the cooling water in the water injection cylinder 25 is pushed into the diversion pipe 24 through the water outlet check valve, thereby improving the cooling water transportation effect and further accelerating the rapid contact of the cooling water with the cable in the upper cooling chamber.

[0027] A stirring frame 33 is threadedly connected to the reciprocating screw 31, and a support rod is connected between the end of the stirring frame 33 and the corresponding water injection piston 26. The stirring frame 33 cooperates with the support rod to carry the water injection piston 26 to reciprocate in the water injection cylinder 25. In combination with the water inlet and outlet check valves on the water injection cylinder 25, the mixed cooling water is injected into the multiple water pipes 21 on the corresponding partition 12, and then discharged to the upper cooling chamber through the multiple water outlet holes on the corresponding V-shaped tube 22, and quickly contacts the cable to perform multi-stage temperature-increasing cooling treatment; When each stirring frame 33 is at the end position on the corresponding reciprocating screw 31, the multiple stirring frames 33 are distributed in a wave shape, so that when the reciprocating screw 31 rotates, the multiple stirring frames 33 alternately move in opposite directions, further improving the mixing efficiency of the cooling water in the cooling chamber. At the same time, in conjunction with the corresponding water injection piston 26 and water injection cylinder 25, a connected water supply effect is achieved, further ensuring the efficiency of efficient cooling.

[0028] Example 3: Please refer to Figures 1-9 As shown, the present invention also proposes a method for using a multi-stage high-efficiency cooling device for wire and cable production, comprising the following steps: Step 1: After passing through the spray box 11, the produced cables are placed on the corresponding guide rollers 13 and guide wheels in sequence. The electric push rod 41 drives the pressing plate 4 to move downward. The guide pressing wheel 45 on the square rod 44 presses the cables between the two adjacent groups of partitions 12 into the cooling water in the cooling chamber, and the cables are in contact with the sponge wiping rollers 32 on both sides. Step 2: The cooling water in the corresponding cooling chamber is extracted by the water pump 110, and is injected into the spray pipe 17 through the water injection pipe 111 and sprayed out to perform a preliminary cooling treatment on the cable. Then, the cooling water in multiple cooling chambers is combined with the movement of the cable to perform a multi-stage cooling treatment. The cable is in contact with the cooling water in multiple cooling chambers, causing the cooling water temperature in multiple cooling chambers in the direction from the outlet pipe 18 to the inlet pipe 19 to gradually increase. The water pump 110 extracts the cooling water with the highest temperature, and then performs a step-by-step cooling treatment on the cable. Step 3: The cooling device 15 draws high-temperature water from the spray box 11 through the water inlet pipe 19 for cooling. The cooling water is then injected into the diversion pipe 1 23 through the water outlet pipe 18. The water is then injected into the corresponding V-shaped tube 22 through multiple water delivery pipes 21. The water is then ejected through the water outlet holes on the concave side of the V-shaped tube 22 and quickly contacts the cables in the cooling chamber, thereby achieving efficient cooling. Step 4: The movement of the cable drives the guide roller 13 to rotate, forcing the first rotating rod 14 to rotate accordingly, and the helical gear 1 35 and the helical gear 2 112, which are meshed with each other, drive the multiple reciprocating screws 31 in the cooling chamber to rotate. The reciprocating screws 31 carry the sponge wiping roller 32 to rotate, wiping and absorbing the moisture on the surface of the cable coming out of the cooling chamber; Step 5: The stirring frame 33 is driven to move back and forth in the cooling chamber by the rotation of the reciprocating screw 31 to accelerate the mixing of the low-temperature cooling water and the high-temperature cooling water. The stirring frame 33 cooperates with the support rod to carry the water injection piston 26 to reciprocate in the water injection cylinder 25. In combination with the water inlet and outlet check valves on the water injection cylinder 25, the mixed cooling water is injected into the multiple water pipes 21 on the corresponding partition 12, and then discharged to the upper cooling chamber through the multiple water outlet holes on the corresponding V-shaped tube 22, and quickly contacts the cable for multi-stage temperature-increasing cooling treatment; Step 6: With the help of the movement of the stirring frame 33, the linkage guide rod 39 is driven to move. The inclined surface of the linkage guide rod 39 contacts the corresponding L-shaped seat 36, pushing the L-shaped seat 36 to move upward, causing the filter rotating belt 38 on the periphery of the rotating roller 37 to be in squeeze-type contact with the corresponding sponge wiping roller 32, squeezing out the water in the sponge wiping roller 32, and causing the sponge wiping roller 32 to rotate continuously to efficiently wipe the moisture on the cable surface.

[0029] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A multi-stage high-efficiency cooling device for wire and cable production, comprising a cooling box (1) and a spray box (11) located on one side thereof, characterized in that: The interior of the cooling box (1) is divided into a plurality of cooling chambers by a partition (12), and a plurality of guide rollers (13) are rotatably mounted on the top of the partition (12), and a first rotating rod (14) fixedly connected to the guide rollers (13) is rotatably connected to the top of the partition (12); A guide pressure wheel (45) cooperating with the guide rollers (13) on both sides is provided in the cooling chamber, a water supply unit (2) is provided on the partition (12) and the side of the cooling box (1) away from the spray box (11), a water wiping unit (3) cooperating with the water supply unit (2) is provided in the cooling chamber, and a cooling device (15) is installed at the bottom of the cooling box (1); The water delivery unit (2) comprises a plurality of water delivery pipes (21) equidistantly mounted on the partition (12), and a V-shaped pipe (22) having an arc-shaped cross-section is fixedly connected to the water delivery pipe (21), and water outlet holes are densely distributed on the concave side of the V-shaped pipe (22). The water wiping unit (3) comprises a plurality of reciprocating screws (31), and a sponge water wiping roller (32) is fixedly mounted on the reciprocating screws (31).

2. A multi-stage high-efficiency cooling device for wire and cable production according to claim 1, characterized in that: An L-shaped frame (16) is fixedly connected to one side of the cooling box (1), and a pressure plate (4) is connected to the L-shaped frame (16) via an electric push rod (41). A square tube (42) is installed on the pressure plate (4), and a square rod (44) sliding with the square tube (42) is connected inside the square tube (42) via a spring (43). The guide pressure wheel (45) is rotatably installed with the corresponding square rod (44).

3. A multi-stage high-efficiency cooling device for wire and cable production according to claim 1, characterized in that: The cooling box (1) and the partition (12) are respectively provided with a diversion pipe 1 (23) and a diversion pipe 2 (24) which are in communication with the corresponding water pipe (21); a wavy spray pipe (17) is installed on the top of the spray box (11); and a water outlet pipe (18) and a water inlet pipe (19) are respectively connected between the cooling device (15), the diversion pipe 1 (23) and the spray box (11).

4. A multi-stage high-efficiency cooling device for wire and cable production according to claim 3, characterized in that: A water pump (110) is installed in the cooling chamber on one side close to the spray box (11), and a water injection pipe (111) is connected between the water outlet of the water pump (110) and the spray pipe (17).

5. A multi-stage high-efficiency cooling device for wire and cable production according to claim 4, characterized in that: The second diversion pipe (24) is connected to a plurality of water injection cylinders (25), and the interior of the water injection cylinder (25) is slidably connected to a water injection piston (26). The water injection cylinder (25) is installed with a water inlet one-way valve and a water outlet one-way valve communicating with the second diversion pipe (24).

6. The multi-stage high-efficiency cooling device for wire and cable production according to claim 1, characterized in that: The reciprocating screw (31) is threadedly connected to a stirring frame (33), and a support rod is connected between the end of the stirring frame (33) and the corresponding water injection piston (26).

7. A multi-stage high-efficiency cooling device for wire and cable production according to claim 6, characterized in that: A fixed block (34) that rotates with the reciprocating screw (31) is fixedly mounted on the partition (12), and a bevel gear 1 (35) is mounted on one end of the reciprocating screw (31). A bevel gear 2 (112) that meshes with the staggered axis of the bevel gear 1 (35) is mounted on the first rotating rod (14). Both sides of the top of the cooling box (1) are rotatably connected to a second rotating rod, and a guide wheel is fixed to the second rotating rod.

8. A multi-stage high-efficiency cooling device for wire and cable production according to claim 7, characterized in that: An L-shaped seat (36) is slidably connected to the fixed block (34), two sets of rotating rollers (37) are rotatably connected to the L-shaped seat (36), and the rotating rollers (37) are connected to each other through a filter rotating belt (38). Both sides of the stirring frame (33) are fixedly connected to linkage guide rods (39) that are slidably connected to the L-shaped seat (36).

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