Cooling device for high-temperature cable production

Abstract

This invention discloses a cooling device for high-temperature cable production, relating to the field of cable manufacturing technology. It includes a cooling chamber and a cooling mechanism, the latter housed inside the cooling chamber. The cooling mechanism includes a cooling water pipe fixedly inserted inside the cooling chamber, with insertion holes at both ends. A water inlet pipe connects to the top of the cooling water pipe and is connected to an external cooling water source. A flow-blocking plate is rotatably connected inside the cooling water pipe. A first connecting seat is fixedly connected inside the lower end of the cooling water pipe, and a flow-blocking spring is fixedly connected between the first connecting seat and the flow-blocking plate. A drain pipe connects to the lower surface of the cooling chamber. Two first support plates are fixedly connected to the upper and lower ends of the insertion holes to solve the problem of inconsistent cooling rates in different parts of the cable, resulting in thermal stress that causes insulation layer deformation and dimensional fluctuations, affecting molding quality.

Description

Technical Field

[0001] This invention relates to the field of cable manufacturing technology, and more specifically, to a cooling device for high-temperature cable production. Background Technology

[0002] Cooling devices for high-temperature cable production are used to continuously cool and lower the surface temperature of high-temperature cables after extrusion or vulcanization, ultimately transforming them into finished cable products with suitable temperature and fully shaped and cured insulation or sheath layers, so that subsequent winding, testing, or printing processes can be carried out.

[0003] In the production of high-temperature cables, the surface of the high-temperature cables is usually cooled by direct spraying of cooling water. However, during the spraying cooling process, it is difficult to precisely control the uniformity of the cooling water flow and distribution. This can easily lead to some areas of the cable surface failing to effectively contact the cooling water, resulting in inconsistent cooling rates in different parts of the high-temperature cable. Areas that have come into contact with the cooling water cool and shrink first, while areas that have not come into contact with the cooling water remain in a state of high-temperature expansion. This uneven cooling generates thermal stress inside the material, causing deformation or dimensional fluctuations in the insulation layer, which affects the forming quality and precision of the cable insulation layer. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of this invention is to provide a cooling device for high-temperature cable production, so as to solve the problem that the cooling rate of different parts of the cable is inconsistent, which generates thermal stress, causing the insulation layer to deform and the size to fluctuate, thus affecting the molding quality.

[0005] To solve the above problems, the present invention adopts the following technical solution: A cooling device for high-temperature cable production includes a cooling chamber and a cooling mechanism. The cooling mechanism is disposed inside the cooling chamber and includes a cooling water storage pipe fixedly inserted inside the cooling chamber. Both ends of the cooling water storage pipe have insertion holes. The top end of the cooling water storage pipe is connected to an inlet pipe, which is connected to an external cooling water source. A baffle plate is rotatably connected inside the cooling water storage pipe. A first connecting seat is fixedly connected inside the lower end of the cooling water storage pipe. A flow-blocking spring is fixedly connected between the first connecting seat and the baffle plate. A drain pipe is connected to the lower surface of the cooling chamber.

[0006] Furthermore, two first support plates are fixedly connected to the upper and lower ends of the insertion hole, and a support shaft is rotatably connected between the two first support plates. A support ring is fixedly connected to the front surface of the cooling chamber, and multiple wiper rubber strips are provided inside the support ring. All of the wiper rubber strips are arranged in a "U" shape.

[0007] Furthermore, both ends of the wiper rubber strip are fixedly connected to a second connecting seat, and the inner arc surface of the support ring is fixedly connected to multiple tension springs. The multiple tension springs are grouped in pairs, and the multiple tension springs are respectively fixedly connected to the surfaces of multiple second connecting seats. The surfaces of the second connecting seats are fixedly connected to guide rods, and the guide rods are inserted into the interior of the support ring.

[0008] Furthermore, an air inlet chamber is fixedly inserted into the right side of the cooling chamber, an air intake fan is installed inside the air inlet chamber, and a pre-cooling box is connected to the right end of the air inlet chamber.

[0009] Furthermore, the left end of the precooling box is connected to a hot air input pipe, the front end of the hot air input pipe is connected to a supplementary heating pipe, the front end of the supplementary heating pipe is connected to a hot air output tailpipe, the front end of the hot air output tailpipe is connected to a hot air drying box, and the right surface of the hot air drying box is connected to an air outlet.

[0010] Furthermore, a first mounting bracket is fixedly connected to both the front and rear ends of the heat replenishment pipe, and a heating wire is fixedly connected between the two first mounting brackets.

[0011] Furthermore, it also includes a traction mechanism, which is disposed at the front end of the cooling chamber. The traction mechanism includes a side support plate fixedly connected to the front surface of the cooling chamber. A mounting base is fixedly connected to the upper surface of the side support plate. A motor is fixedly connected to the upper surface of the mounting base. Two support plates are fixedly connected to the upper surface of the side support plate. A passive traction shaft and an active traction shaft are rotatably connected between the two support plates. The active traction shaft is fixedly connected to the output shaft of the motor and is located above the passive traction shaft.

[0012] Furthermore, a traction rubber cover is fixedly fitted onto the surface of the active traction shaft, and multiple rubber partitions are fixedly connected inside the traction rubber cover, which divide the interior of the traction rubber cover into multiple independent spaces.

[0013] Furthermore, the surface of the traction rubber cover is connected to multiple vent pipes, and the multiple vent pipes are respectively connected to multiple independent spaces on the traction rubber cover that are separated by rubber partitions.

[0014] Furthermore, a venting ring is fixedly connected to the left end of the venting pipe, and a second mounting bracket is fixedly connected to the right end of the venting pipe. A thrust spring is fixedly connected to the left surface of the second mounting bracket, and a blocking ball that cooperates with the venting ring is fixedly connected to the left end of the thrust spring.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) This solution fills the cooling water storage pipe with cooling water, so that the cable in the cooling water storage pipe can come into full contact with the cooling water, thereby achieving all-round cooling of the cable surface and preventing uneven cooling due to the cable surface not being able to fully and evenly contact the cooling water during the cooling process, which would affect the forming quality and precision of the cable.

[0016] (2) In this scheme, when the cable passes through the pre-cooling box, the external air is delivered to the pre-cooling box by the inlet fan. The airflow carries away the heat on the surface of the cable, thereby achieving the effect of initially reducing the surface temperature of the cable. This prevents the high-temperature cable from coming into direct contact with the low-temperature cooling water, which would cause an excessive temperature difference between the inside and outside of the insulation layer on the cable surface, thus affecting the forming quality and precision of the cable.

[0017] (3) When the airflow carries away the heat on the surface of the cable, the hot airflow enters the hot air drying box. After the cable is cooled and removed from the cooling chamber, the residual cooling water on the surface of the cable is dried by hot air. By reusing the heat on the surface of the cable, the drying effect is effectively improved while reducing energy consumption.

[0018] (4) When the cable is removed from the cooling chamber, the tension spring pulls multiple scraper rubber strips that are always pressed against the surface of the cable. When the cable moves, most of the water on the surface of the cable is scraped off by the scraper rubber strips, which improves the drying efficiency of the cooling water on the surface of the cable during the subsequent hot air drying process.

[0019] (5) During the traction process, the downward space in the multiple independent spaces separated by the rubber partition on the traction rubber soft cover is pressed onto the cable surface, and the air in this part of the space is discharged to achieve a negative pressure adsorption effect, thereby reducing the probability of cable slippage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the cooling chamber of the present invention; Figure 3 This is a schematic diagram of the cooling water storage pipe part of the present invention; Figure 4 This is a schematic diagram of the pre-cooling box and hot air drying box of the present invention; Figure 5 This is a schematic diagram of the structure of the wiper rubber strip of the present invention; Figure 6 This is a schematic diagram of the active traction shaft and passive traction shaft of the present invention; Figure 7 This is a schematic diagram of the structure of the traction rubber soft cover and rubber partition of the present invention; Figure 8 This is a schematic diagram of the internal structure of the vent tube of the present invention.

[0021] Explanation of the labels in the diagram: 1. Cooling chamber; 201. Cooling water storage pipe; 202. Hot air output tailpipe; 203. Water inlet pipe; 204. Insertion hole; 205. First support plate; 206. Support shaft; 207. Baffle plate; 208. Baffle spring; 209. First connecting seat; 210. Hot air input pipe; 211. Pre-cooling box; 212. Air inlet chamber; 213. Hot air drying box; 214. Air outlet; 215. Inlet fan; 216. Heat replenishment pipe; 217. Heating wire; 218. First mounting bracket; 219. Support ring; 220. Drain pipe; 221. Squeegee rubber strip; 222. Second connecting seat; 223. Tension spring; 224. Guide rod; 301. Side support plate; 302. Motor; 303. Mounting base; 304. Support plate; 305. Passive traction shaft; 306. Active traction shaft; 307. Traction rubber cover; 308. Rubber partition; 309. Vent pipe; 310. Blocking ball; 311. Vent ring; 312. Thrust spring; 313. Second mounting bracket. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-5 A cooling device for high-temperature cable production includes a cooling chamber 1 and a cooling mechanism. The cooling mechanism is disposed inside the cooling chamber 1 and includes a cooling water storage pipe 201 fixedly inserted inside the cooling chamber 1. Both ends of the cooling water storage pipe 201 have insertion holes 204. The top end of the cooling water storage pipe 201 is connected to a water inlet pipe 203, which is connected to an external cooling water source. A flow baffle 207 is rotatably connected inside the cooling water storage pipe 201. A first connecting seat 209 is fixedly connected inside the lower end of the cooling water storage pipe 201. A flow-blocking spring 208 is fixedly connected between the first connecting seat 209 and the flow baffle 207. A drain pipe 220 is connected to the lower surface of the cooling chamber 1.

[0024] The insertion hole 204 has two first support plates 205 fixedly connected to its upper and lower ends. A support shaft 206 is rotatably connected between the two first support plates 205. A support ring 219 is fixedly connected to the front surface of the cooling chamber 1. Multiple wiper rubber strips 221 are arranged inside the support ring 219. The multiple wiper rubber strips 221 are arranged in a "U" shape. Second connecting seats 222 are fixedly connected to both ends of the wiper rubber strips 221. Multiple tension springs 223 are fixedly connected to the inner arc surface of the support ring 219. The multiple tension springs 223 are arranged in pairs. The multiple tension springs 223 are fixedly connected to the surfaces of the multiple second connecting seats 222. A guide rod 224 is fixedly connected to the surface of the second connecting seat 222. The guide rod 224 is inserted into the interior of the support ring 219.

[0025] The cooling chamber 1 has an air inlet chamber 212 fixedly inserted on the right side, and an air inlet fan 215 is installed inside the air inlet chamber 212. The right end of the air inlet chamber 212 is connected to a pre-cooling box 211.

[0026] The precooling box 211 has a hot air input pipe 210 connected to its left end, a supplementary heating pipe 216 connected to its front end, a hot air output tailpipe 202 connected to its front end, a hot air drying box 213 connected to its front end, and an air outlet 214 connected to its right surface. The supplementary heating pipe 216 has a first mounting bracket 218 fixedly connected to both its front and rear ends, and a heating wire 217 fixedly connected between the two first mounting brackets 218.

[0027] By adopting the above technical solution, when cooling high-temperature cables, the high-temperature cables pass through the cooling chamber 1 and the insertion hole 204 on the cooling water storage pipe 201 at the same time. At the same time, the external cooling water source delivers cooling water to the cooling water storage pipe 201 through the water inlet pipe 203. Since the input amount of cooling water is greater than the amount that can be discharged through the insertion hole 204, and the flow-blocking spring 208 pushes the flow-blocking plate 207 to block the lower end of the cooling water storage pipe 201, the cooling water storage pipe 201 can be filled with cooling water. The cable in the cooling water storage pipe 201 can have more full contact with the cooling water, thereby achieving all-round cooling of the cable surface and preventing uneven cooling due to insufficient and uneven contact of the cable surface with the cooling water during the cooling process, which would affect the forming quality and precision of the cable. When the cooling water input in the cooling water storage pipe 201 is greater than the drainage volume of the insertion hole 204, resulting in excessive water pressure in the cooling water storage pipe 201, the excessive water pressure will push open the baffle plate 207, allowing the cooling water to be discharged, thereby reducing the pressure inside the cooling water storage pipe 201.

[0028] Before water cooling, the cable passes through a pre-cooling box 211 and a hot air drying box 213. When the cable passes through the pre-cooling box 211, the inlet fan 215 can deliver outside air into the pre-cooling box 211. The airflow carries away the heat from the surface of the cable, achieving the effect of initially reducing the surface temperature of the cable. This prevents the high-temperature cable from coming into direct contact with the low-temperature cooling water, which would cause an excessive temperature difference between the inside and outside of the insulation layer on the cable surface, affecting the forming quality and precision of the cable.

[0029] When airflow is used to remove heat from the cable surface, the hot air flows through the hot air inlet pipe 210, the supplementary heating pipe 216, and the hot air outlet pipe 202, entering the hot air drying box 213. This allows for the hot air drying of any residual cooling water on the cable surface after it has been cooled and removed from the cooling chamber 1. Simultaneously, the reuse of heat from the cable surface effectively improves the drying effect while reducing energy consumption. If the temperature is insufficient during the drying process, the hot air can be further heated using the heating wire 217 to improve the drying effect on the cable.

[0030] After the cable is cooled, when the cable is removed from the cooling chamber 1, the tension spring 223 can pull multiple squeegee rubber strips 221 to keep them pressed against the surface of the cable. When the cable moves, most of the water on the surface of the cable can be scraped off by the squeegee rubber strips 221, which can improve the drying efficiency of the cooling water on the surface of the cable during the subsequent hot air drying process.

[0031] like Figures 6-8 As shown, it also includes a traction mechanism, which is located at the front end of the cooling chamber 1. The traction mechanism includes a side support plate 301 fixedly connected to the front surface of the cooling chamber 1. A mounting base 303 is fixedly connected to the upper surface of the side support plate 301. A motor 302 is fixedly connected to the upper surface of the mounting base 303. Two support plates 304 are fixedly connected to the upper surface of the side support plate 301. A passive traction shaft 305 and an active traction shaft 306 are rotatably connected between the two support plates 304. The active traction shaft 306 is connected to the output of the motor 302. The shaft is fixedly connected, and the active traction shaft 306 is located above the passive traction shaft 305. The surface of the active traction shaft 306 is fixedly fitted with a traction rubber soft cover 307. Multiple rubber partitions 308 are fixedly connected inside the traction rubber soft cover 307. The multiple rubber partitions 308 divide the interior of the traction rubber soft cover 307 into multiple independent spaces. Multiple vent pipes 309 are connected to the surface of the traction rubber soft cover 307. The multiple vent pipes 309 are respectively connected to the multiple independent spaces on the traction rubber soft cover 307 that are separated by the rubber partitions 308.

[0032] The ventilation pipe 309 has a ventilation ring 311 fixedly connected to its left inner end, and a second mounting bracket 313 fixedly connected to its right inner end. A thrust spring 312 is fixedly connected to the left surface of the second mounting bracket 313, and a blocking ball 310 that cooperates with the ventilation ring 311 is fixedly connected to the left end of the thrust spring 312.

[0033] By adopting the above technical solution, during the cooling and drying process of the cable, since the front end of the cable is located between the active traction shaft 306 and the passive traction shaft 305 and is clamped by them, the active traction shaft 306 can be driven to rotate by the motor 302, thereby pulling the cable to move. During the traction process, the downward-facing spaces in the multiple independent spaces separated by the rubber partitions 308 on the traction rubber cover 307 can press against the cable surface and expel the air from these spaces, achieving a negative pressure adsorption effect. During the cable pulling process, the occurrence of cable slippage can be reduced. As the active traction shaft 306 rotates, when the space on the corresponding part of the traction rubber soft cover 307 detaches from the cable surface, when the resulting detachment pull exceeds the thrust of the thrust spring 312 pushing the blocking ball 310 to block the vent ring 311, the external air pressure pushes the blocking ball 310 to the right, the vent ring 311 opens, and the external air enters the corresponding independent space on the traction rubber soft cover 307, which can cause this part of the space to detach from the cable surface until the independent space on the next traction rubber soft cover 307 covers and adheres to the cable again.

[0034] Instructions for use: The high-temperature cable passes through the pre-cooling box 211. The fan 215 delivers outside air into the pre-cooling box 211, and the airflow carries away the heat from the surface of the cable, thus initially reducing the surface temperature of the cable. The hot air generated in the precooling box 211 flows into the hot air drying box 213 through the hot air inlet pipe 210, the supplementary heating pipe 216 and the hot air outlet tail pipe 202; If the drying temperature is insufficient, the hot air can be further heated by heating wire 217; The cable passes through the insertion hole 204 on the cooling chamber 1 and the cooling water pipe 201; External cooling water is input into the cooling water storage pipe 201 through the inlet pipe 203. Because the input volume is greater than the drainage volume of the insertion hole 204, and the flow-blocking spring 208 pushes the flow-blocking plate 207 to block the lower end, the cooling water storage pipe 201 is filled with cooling water, and the cable is in full contact with the cooling water to achieve all-round cooling. When the water pressure is too high, the water pressure pushes open the flow baffle 207 to drain and reduce the pressure; When the cable is removed from the cooling chamber 1, the tension spring 223 pulls multiple scraping rubber strips 221 to press against the surface of the cable, scraping away most of the cooling water on the surface during the cable's movement; The cable enters the hot air drying box 213, where the recovered hot air flow, and if necessary, the heating wire 217, is used to supplement the heat to dry the cooling water remaining on the surface of the cable. The cable front end is clamped between the active traction shaft 306 and the passive traction shaft 305, and the motor 302 drives the active traction shaft 306 to rotate and pull the cable to move. During the traction process, the independent space separated by the rubber partition 308 on the traction rubber soft cover 307 presses against the cable surface and exhausts air, forming negative pressure adsorption and reducing the occurrence of cable slippage.

[0035] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A cooling device for high-temperature cable production, comprising a cooling chamber (1), characterized in that: It also includes a cooling mechanism, which is located inside the cooling chamber (1). The cooling mechanism includes a cooling water storage pipe (201) fixedly inserted inside the cooling chamber (1). Both ends of the cooling water storage pipe (201) are provided with insertion holes (204). The top end of the cooling water storage pipe (201) is connected to a water inlet pipe (203), which is connected to an external cooling water source. A baffle plate (207) is rotatably connected inside the cooling water storage pipe (201). A first connecting seat (209) is fixedly connected inside the lower end of the cooling water storage pipe (201). A flow-blocking spring (208) is fixedly connected between the first connecting seat (209) and the baffle plate (207). A drain pipe (220) is connected to the lower surface of the cooling chamber (1).

2. The cooling device for high-temperature cable production according to claim 1, characterized in that: The upper and lower ends of the insertion hole (204) are fixedly connected to two first support plates (205), and a support shaft (206) is rotatably connected between the two first support plates (205). A support ring (219) is fixedly connected to the front surface of the cooling chamber (1). Multiple wiper rubber strips (221) are provided inside the support ring (219), and the multiple wiper rubber strips (221) are all arranged in a "U" shape.

3. The cooling device for high-temperature cable production according to claim 2, characterized in that: Both ends of the wiper rubber strip (221) are fixedly connected to a second connecting seat (222). The inner arc surface of the support ring (219) is fixedly connected to a plurality of tension springs (223). The plurality of tension springs (223) are in pairs. The plurality of tension springs (223) are fixedly connected to the surfaces of the plurality of second connecting seats (222). The surface of the second connecting seat (222) is fixedly connected to a guide rod (224). The guide rod (224) is inserted into the interior of the support ring (219).

4. The cooling device for high-temperature cable production according to claim 1, characterized in that: An air inlet chamber (212) is fixedly inserted into the right side of the cooling chamber (1). An air inlet fan (215) is installed inside the air inlet chamber (212). A pre-cooling box (211) is connected to the right end of the air inlet chamber (212).

5. A cooling device for high-temperature cable production according to claim 4, characterized in that: The left end of the precooling box (211) is connected to a hot air input pipe (210), the front end of the hot air input pipe (210) is connected to a heat replenishing pipe (216), the front end of the heat replenishing pipe (216) is connected to a hot air output tail pipe (202), the front end of the hot air output tail pipe (202) is connected to a hot air drying box (213), and the right surface of the hot air drying box (213) is connected to an air outlet (214).

6. A cooling device for high-temperature cable production according to claim 5, characterized in that: The front and rear ends of the heat-replenishing pipe (216) are fixedly connected to a first mounting bracket (218), and a heating wire (217) is fixedly connected between the two first mounting brackets (218).

7. A cooling device for high-temperature cable production according to claim 1, characterized in that: It also includes a traction mechanism, which is located at the front end of the cooling chamber (1). The traction mechanism includes a side support plate (301) fixedly connected to the front surface of the cooling chamber (1). A mounting base (303) is fixedly connected to the upper surface of the side support plate (301). A motor (302) is fixedly connected to the upper surface of the mounting base (303). Two support plates (304) are fixedly connected to the upper surface of the side support plate (301). A passive traction shaft (305) and an active traction shaft (306) are rotatably connected between the two support plates (304). The active traction shaft (306) is fixedly connected to the output shaft of the motor (302). The active traction shaft (306) is located above the passive traction shaft (305).

8. A cooling device for high-temperature cable production according to claim 7, characterized in that: The surface of the active traction shaft (306) is fixedly fitted with a traction rubber soft cover (307), and a plurality of rubber partitions (308) are fixedly connected inside the traction rubber soft cover (307), which divide the interior of the traction rubber soft cover (307) into a plurality of independent spaces.

9. A cooling device for high-temperature cable production according to claim 8, characterized in that: The surface of the traction rubber soft cover (307) is connected to a plurality of vent pipes (309), and the plurality of vent pipes (309) are respectively connected to a plurality of independent spaces on the traction rubber soft cover (307) that are separated by rubber partitions (308).

10. A cooling device for high-temperature cable production according to claim 9, characterized in that: A ventilation ring (311) is fixedly connected to the left end of the vent pipe (309), and a second mounting bracket (313) is fixedly connected to the right end of the vent pipe (309). A thrust spring (312) is fixedly connected to the left surface of the second mounting bracket (313), and a blocking ball (310) that cooperates with the ventilation ring (311) is fixedly connected to the left end of the thrust spring (312).

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