An optical cable sheath extrusion system

Abstract

The present application relates to an optical cable sheath extrusion system, and to the technical field of optical cable manufacturing equipment. The system comprises a cabling machine for twisting a plurality of optical fibers into one, an extruder for wrapping the surface of the synthesized optical fiber with a protective sheath to form a complete optical cable, a cooling component for cooling and shaping the optical cable, and a cable reel for reeling the optical cable, wherein the cooling component comprises a cooling pool for cooling the optical cable, wherein a first support member and a second support member for carrying the optical cable are arranged oppositely in the cooling pool, wherein a slope is arranged on the side of the second support member facing the first support member, and there is a gap between the first support member and the second support member, and a pumping member for conveying the coolant in the cooling pool to the slope of the second support member is fixed on the side of the cooling pool close to the second support member, thereby alleviating the problem of poor cooling effect of the coolant.

Description

Technical Field

[0001] The present invention relates to the technical field of optical cable manufacturing equipment, and more particularly to an optical cable sheath extrusion system. Background Art

[0002] An optical cable is a communication cable assembly that uses one or more optical fibers placed in a coated sheath as a transmission medium and can be used alone or in groups.

[0003] With the rapid economic development, the consumption of optical cables is increasing, and more and more optical cables are being produced. The existing production process of optical cables mainly includes the following steps. Taking an optical cable composed of multiple optical fibers as an example, first, multiple optical fibers need to be twisted into one, and then the synthesized optical fiber is wrapped with a rubber sheath on the surface through an extruder to form a complete optical cable. After the complete optical cable comes out of the extruder, it needs to pass through a cooling device for cooling and shaping; that is, the optical cable coming out of the extruder needs to pass through a cooling tank filled with cooling water. After cooling, the optical cable can complete the final shaping.

[0004] However, when the optical cable is cooled in the cooling device, the coolant is difficult to flow in the cooling tank. After working for a long time, the temperature of the coolant in the cooling tank will be uneven, resulting in poor cooling effect of the coolant.

[0005] Regarding the above related technologies, there is a problem of poor cooling effect of the coolant. Summary of the Invention

[0006] In order to alleviate the problem of poor cooling effect of the coolant, the present application provides an optical cable sheath extrusion system.

[0007] An optical cable sheath extrusion system provided by the present application adopts the following technical solution: An optical cable sheath extrusion system includes a stranding machine for twisting multiple optical fibers into one, an extruder for wrapping a protective sheath on the surface of the synthesized optical fiber to form a complete optical cable, a cooling component for cooling and shaping the optical cable, and a cable winder for winding the optical cable. The cooling component includes a cooling pool for cooling the optical cable. A first support member and a second support member for carrying the optical cable are arranged in the cooling pool. The first support member and the second support member are arranged opposite to each other. A slope is arranged on the side of the second support member facing the first support member. There is a gap between the first support member and the second support member. A water pumping member for transporting the coolant in the cooling pool to the slope of the second support member is fixed on one side of the cooling pool close to the second support member.

[0008] By adopting the above technical solution, the stranding machine first twists multiple optical fibers into one, and then the synthesized optical fiber will pass through the extruder under the traction of the end cable winder. After passing through the extruder, a protective sleeve will be wrapped on the surface of the synthesized optical fiber to form a complete optical cable. The complete optical cable enters the cooling device for cooling and shaping after coming out of the extruder. The optical cable penetrates into the gap between the first support member and the second support member along the first support member on the cooling pool and contacts the coolant in the cooling pool for cooling. Then the optical cable is wound by the cable winder after extending from the second support member along the slope of the second support member. In this process, the optical cable first contacts the coolant in the cooling pool in the gap between the first support member and the second support member for cooling. Then when the optical cable is pulled upward along the slope of the second support member by the cable winder, the coolant pumped from the cooling pool to the slope of the second support member by the pumping member slides down along the slope of the second support member to cool and wash the optical cable again, so that the optical cable is fully cooled, alleviating the problem of poor cooling effect of the coolant.

[0009] Optionally, the specific structure of the pumping member for transporting the coolant in the cooling pool to the slope of the second support member is: the pumping member includes a runner for rotating to transport the coolant from the cooling pool to the slope of the second support member and a water bucket for collecting the coolant. The water buckets are evenly arranged on the outer periphery of the runner. The water buckets are arranged along the tangential direction of the outer periphery of the runner. The opening direction of the water bucket faces the moving direction of the runner. The runner is rotatably connected to the side wall of the second support member.

[0010] By adopting the above technical solution, the pumping member includes a runner and a water bucket. The water buckets are evenly arranged on the outer periphery of the runner. The runner is rotatably connected to the side wall of the second support member. When the pumping member works, the water buckets installed at the bottom of the outer periphery of the runner will collect the coolant in the cooling pool, be brought to the top of the runner by the rotation of the runner. As the runner continues to rotate, the openings of the water buckets gradually face downward, and the coolant in the water buckets slides out and falls onto the slope of the second support member, realizing the transportation of the coolant by the pumping member.

[0011] Optionally, the cable winder is equipped with a driving motor for providing power to wind the optical cable, and the pumping member and the cable winder achieve chain drive through a transmission chain.

[0012] By adopting the above technical solution, the chain drive between the pumping member and the cable winder can provide power for the rotation of the pumping member, and compared with belt drive, the chain drive will not slip and has high transmission efficiency.

[0013] Optionally, a liquid guide groove for guiding the coolant slid out by the pumping member onto the slope of the second support member is arranged on one side of the second support member close to the pumping member.

[0014] By adopting the above technical solution, a liquid guide groove is arranged on one side of the second support member close to the water pumping member. When the runner rotates to the top and continues to rotate, the coolant in the water bucket slides out of the water bucket and falls into the liquid guide groove close to the water pumping member. The coolant flows along the liquid guide groove onto the slope of the second support member and slides down the slope into the bottom of the cooling pool. During the sliding process, relative movement occurs with the optical cable, realizing the flushing and cooling of the optical cable.

[0015] Optionally, baffles for preventing the coolant from flowing out from both sides of the slope are arranged on both sides of the slope of the second support member.

[0016] By adopting the above technical solution, after the coolant on the water pumping member falls onto the slope of the second support member, since baffles for preventing the coolant from flowing out from both sides of the slope are arranged on both sides of the slope, the coolant can only slide along the slope into the bottom of the second support member. In this way, the optical cable can contact more coolant on the slope, making the cooling of the optical cable by the coolant more sufficient.

[0017] Optionally, the water bucket at the lowest position on the outer periphery of the runner is immersed in the coolant in the cooling pool.

[0018] By adopting the above technical solution, the water bucket at the lowest position on the outer periphery of the runner being immersed in the coolant in the cooling pool can ensure that each water bucket on the runner collects more coolant every time it collects the coolant in the cooling pool, making more coolant transported by the water pumping member to the slope of the second support member. In this way, the optical cable can contact more coolant on the slope, making the cooling of the optical cable by the coolant more sufficient.

[0019] Optionally, a cleaning sleeve for cleaning the residual coolant on the optical cable is arranged on the top end face of the second support member. The cleaning sleeve includes a cleaning outer shell and a cleaning soft sleeve. The cleaning outer shell is fixed on the top end face of the second support member, and the cleaning soft sleeve is arranged around the inner wall of the cleaning outer shell. The cleaning soft sleeve is used to abut against the optical cable.

[0020] By adopting the above technical solution, after the optical cable passes through the slope of the second support member, there will be residual coolant on the outer sheath of the optical cable. By arranging a cleaning sleeve on the top end face of the second support member and the optical cable passing through the cleaning soft sleeve in the cleaning sleeve, the cleaning soft sleeve can clean and adsorb the residual coolant on the surface of the optical cable.

[0021] Optionally, the cable winder is connected to the drive motor through a first drive rod. A drying fan for drying the optical cable is installed at the other end of the first drive rod. An air guide pipe for guiding air is installed at the air outlet of the drying fan. The other end of the air guide pipe is fixed on the top end face of the second support member. The air guide pipe is closer to the cable winder than the cleaning sleeve.

[0022] By adopting the above technical solution, although most of the coolant is removed after the optical cable comes out of the cleaning sleeve, there will still be some residues. A drying fan is installed at the other end of the first driving rod, and the first driving rod provides power for the drying fan to generate wind. The wind blows out from the other end of the air duct along the air duct, and can dry the outer sheath of the optical cable again.

[0023] Optionally, a gear set is connected to the other end of the first driving rod. The gear set includes a large gear and a small gear. The large gear meshes with the small gear. The large gear is arranged on the first driving rod, the small gear is rotatably connected to the cable winder, and the drying fan cooperates with the small gear.

[0024] By adopting the above technical solution, since the greater the wind force generated by the drying motor, the more significant the drying effect on the optical cable. Therefore, a gear set is installed on the first driving rod. The large gear is arranged on the first driving rod, and the small gear is arranged on the drying gear. Since the number of teeth is inversely proportional to the number of revolutions, and the large and small gears mesh with each other, and the number of teeth of the large gear is greater than that of the small gear. Therefore, when the first driving rod rotates, the number of revolutions of the small gear is greater than that of the large gear, which can drive the drying motor to rotate at an accelerated speed to generate a stronger wind force, making the drying effect of the drying fan on the optical cable more significant.

[0025] Optionally, guiding members are arranged on the first support member, the cooling pool and the second support member. The guiding members include guiding rollers and support rods. The support rods are respectively fixed on the first support member, the cooling pool and the second support member, and guiding rollers for guiding the optical cable are rotatably connected to the support rods.

[0026] By adopting the above technical solution, guiding members are arranged on the first support member, the cooling pool and the second support member, which can enable the optical cable to be cooled along the designed route. Since the optical cable is pulled by the cable winder, if the guiding rollers are not provided, the optical cable will directly go from the top end face of the first support member to the top end face of the second support member, making the optical cable unable to be cooled in the cooling pool and on the slope of the second support member.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. While the cable winder pulls the optical cable upward along the slope on the second support member, the cable winder drives the water pump to rotate to transport the coolant in the cooling pool to the top of the second support member through the water bucket. The coolant in the water bucket flows into the slope between the baffle plates through the liquid guide groove, and the coolant slides down from the top end of the slope of the second support member, moving relative to the optical cable moving towards the top end of the slope, and flushing the optical cable again for cooling, so that the optical cable is fully cooled, alleviating the problem of poor cooling effect of the coolant.

[0029] 2. After the optical cable climbs to the top of the second support member, it will pass through the cleaning sleeve to wipe and clean the residual coolant on the surface of the optical cable. Since the drying fan obtains wind power from the first driving rod through the gear set, and because the number of teeth is inversely proportional to the number of revolutions, and the large and small gears mesh with each other, and the number of teeth of the large gear is greater than that of the small gear. Therefore, when the first driving rod rotates, the number of revolutions of the small gear is greater than that of the large gear, which can drive the drying motor to rotate faster to generate stronger wind power. The wind generated by the drying fan will spray out from the air outlet of the air duct along the air duct to further dry the optical cable. Brief Description of the Drawings

[0030] Figure 1 is the overall structural schematic diagram of an optical cable sheath extrusion system in an embodiment of the present application.

[0031] Figure 2 is the structural schematic diagram of a guiding member of an optical cable sheath extrusion system in an embodiment of the present application.

[0032] Figure 3 is the structural schematic diagram of a water pumping member of an optical cable sheath extrusion system in an embodiment of the present application.

[0033] Figure 4 is the structural schematic diagram of a cleaning sleeve of an optical cable sheath extrusion system in an embodiment of the present application.

[0034] Figure 5 is the overall structural schematic diagram of an optical cable sheath extrusion system in an embodiment of the present application.

[0035] Description of the reference numerals: 1, stranding machine; 2, extruder; 3, cooling component; 31, cooling pool; 311, first support member; 312, second support member; 3121, liquid guide groove; 3122, liquid retaining plate; 3123, driven gear; 313, cleaning sleeve; 3131, cleaning outer shell; 3132, cleaning soft sleeve; 32, water pumping member; 321, runner; 322, water bucket; 323, third driving rod; 4, cable winding machine; 41, winding drum; 42, support frame; 43, driving motor; 44, first driving rod; 45, drying fan; 46, gear set; 461, large gear; 462, small gear; 4621, second driving rod; 47, air duct; 48, driving gear; 5, transmission chain; 6, guiding member; 61, guiding roller; 62, support rod. Detailed Description of the Embodiment

[0036] The following further describes the present application in detail with reference to the accompanying drawings of the specification.

[0037] The embodiment of the present application discloses an optical cable sheath extrusion system.

[0038] Refer to the attached Figure 1As shown in the figure, an optical cable sheath extrusion system includes a stranding machine 1 for twisting multiple optical fibers into one, an extruder 2 for wrapping a protective sheath on the surface of the synthesized optical fibers to form a complete optical cable, a cooling component 3 for cooling and shaping the optical cable, and a cable winding machine 4 for winding the optical cable. The stranding machine 1, the extruder 2, the cooling component 3, and the cable winding machine 4 are arranged in sequence. The cooling component 3 includes a cooling pool 31 for cooling the optical cable. In the cooling pool 31, a first support member 311 and a second support member 312 for carrying the optical cable are provided, and the first support member 311 and the second support member 312 are arranged opposite to each other. A slope is provided on the side of the second support member 312 facing the first support member 311. There is a gap between the first support member 311 and the second support member 312. A pumping member 32 for delivering the coolant in the cooling pool 31 to the slope of the second support member 312 is fixed on one side of the cooling pool 31 close to the second support member 312.

[0039] The stranding machine 1 first twists multiple optical fibers into one. After that, the synthesized optical fibers will pass through the extruder 2 under the traction of the cable winding machine 4 at the end. After the optical cable passes through the extruder 2, a protective sheath will be wrapped on the surface of the synthesized optical fibers to form a complete optical cable. The complete optical cable enters the cooling device for cooling and shaping after coming out of the extruder 2. The optical cable penetrates along the first support member 311 in the cooling pool 31 into the gap between the first support member 311 and the second support member 312 to contact the coolant in the cooling pool 31 for cooling. Then the optical cable extends out from the second support member 312 along the slope of the second support member 312 and is wound by the cable winding machine 4. In this process, the optical cable is first cooled by being immersed in the coolant in the cooling pool 31 in the gap between the first support member 311 and the second support member 312. Then, when the optical cable is pulled up along the slope of the second support member 312 by the cable winding machine 4, the coolant pumped from the cooling pool 31 to the slope of the second support member 312 by the pumping member 32 slides down along the slope of the second support member 312 to cool and wash the optical cable again, enabling the optical cable to be fully cooled and alleviating the problem of poor cooling effect of the coolant.

[0040] Specifically, referring to the appendix Figure 1 As shown in the figure, the cooling pool 31 is square as a whole. There is coolant in the cooling pool 31 for cooling the optical cable. The first support member 311 is fixedly arranged on one side of the cooling pool 31 close to the extruder 2, and the second support member 312 is fixedly arranged on one side of the cooling pool 31 close to the cable winding machine 4. The first support member 311 is a rectangular prism as a whole, and the second support member 312 is a right trapezoid as a whole.

[0041] Referring to the appendix Figure 1 and the appendix Figure 2As shown, a guiding member 6 for guiding the optical cable is fixed on the first support member 311, the cooling pool 31, and the second support member 312. The guiding member 6 includes a guiding roller 61 for guiding the optical cable and a support rod 62 for supporting the guiding roller 61. The guiding roller 61 is rotatably connected between the support rods 62. To prevent damage to the sheath of the optical cable at the bend of the first support member 311, one guiding member 6 is fixed at the top surface of the first support member 311 and the corner facing the second support member 312, and two guiding members 6 are fixed at the gap between the first support member 311 and the second support member 312, so that the optical cable is immersed in the coolant. The two guiding members 6 are respectively close to the first support member 311 and the second support member 312. The guiding members 6 are also respectively arranged at the top surface of the second support member 312 and the ramp corner, and at the corner between the top surface of the second support member 312 and the right-angle side.

[0042] Refer to the attached Figure 1 and the attached Figure 3 As shown, the pumping member 32 includes a runner 321 for rotating to transport the coolant from the cooling pool 31 to the ramp of the second support member 312 and a water bucket 322 for collecting the coolant. The runner 321 is rotatably connected to the side wall of the second support member 312. There are multiple water buckets 322, and each water bucket 322 is uniformly bolted to the outer circumference of the runner 321. The water bucket 322 is in an overall rectangular tube shape, and each water bucket 322 is arranged along the tangential direction of the outer circumference of the runner 321, and the opening direction of each water bucket 322 faces the moving direction of the runner 321.

[0043] Refer to the attached Figure 1 As shown, a liquid guide groove 3121 for guiding the coolant in the pumping member 32 onto the ramp of the second support member 312 is fixedly connected to one side of the upper part of the ramp of the second support member 312 close to the pumping member 32. The liquid guide groove 3121 is arranged in an overall L shape. One end of the liquid guide groove 3121 is fixed to one side of the ramp of the second support member 312. The coolant sliding out of the water bucket 322 of the pumping member 32 falls into the liquid guide groove 3121 and can flow into the ramp of the second support member 312 from the other end of the liquid guide groove 3121. Liquid retaining plates 3122 for preventing the coolant from flowing out from both sides of the ramp are welded to both sides of the ramp of the second support member 312 close to the optical cable. And because the liquid retaining plates 3122 are welded to both sides of the optical cable, when the coolant in the liquid guide groove 3121 flows into the liquid retaining plates 3122, the flow rate of the coolant can be increased, making the flushing effect of the coolant on the optical cable more significant and improving the cooling effect.

[0044] Refer to the attached Figure 1 and the attached Figure 4As shown, a cleaning sleeve 313 for cleaning the residual coolant on the optical cable is bolted to the top surface of the second support member 312. The cleaning sleeve 313 includes a cleaning outer shell 3131 for fixation and a cleaning soft sleeve 3132 for cleaning the optical cable. The cleaning outer shell 3131 is bolted to the top surface of the second support member 312, and the cleaning soft sleeve 3132 is fixed to the inner wall of the cleaning outer shell 3131. The optical cable abuts against the cleaning soft sleeve 3132 and passes through the inside of the cleaning soft sleeve 3132 to clean the coolant on the surface of the optical cable sheath.

[0045] Refer to the attached Figure 1 and the attached Figure 5 As shown, the cable winder 4 includes a reel 41 for winding the optical cable and a support frame 42 for supporting the reel 41. The support frame 42 is fixed to the ground. A first driving rod 44 is coaxially passed through the reel 41. The reel 41 is rotatably connected to the support frame 42 through the first driving rod 44. The first driving rod 44 extends out from both sides of the reel 41. One end of the first driving rod 44 is cooperated with a driving motor 43 through a bevel gear set 46 to provide power for the first driving rod 44 to drive the reel 41 to rotate and wind the optical cable. A large gear 461 is sleeved on the other side of the first driving rod 44. The large gear 461 meshes with a small gear 462 to form a gear set 46. The small gear 462 is coaxially and rotatably connected to a second driving rod 4621. One end of the second driving rod 4621 is rotatably connected to the support frame 42, and the other end of the second driving rod 4621 is connected to a drying fan 45 for drying the optical cable. The drying fan 45 is driven by the second driving rod 4621 to drive the impeller inside the drying fan 45 to rotate to generate wind power. The air outlet of the drying fan 45 is connected to an air duct 47. The air duct 47 extends towards the top surface of the second support member 312. The air outlet of the air duct 47 is closer to the cable winder 4 than the cleaning sleeve 313, and the air outlet of the air duct 47 is arranged towards the optical cable. The other end of the first driving rod 44 is coaxially connected to a driving gear 48. A driven gear 3123 that cooperates with the driving gear 48 is arranged on the side wall of the second support member 312 on the same side as the driving gear 48. The driven gear 3123 is coaxially and rotatably connected to a third driving rod 323. The other end of the third driving rod 323 passes through the inside of the second support member 312 and is coaxially and rotatably connected to the center of the runner 321. A chain drive is realized between the driving gear 48 and the driven gear 3123 through a transmission chain 5.

[0046] The implementation principle of an optical cable sheath extrusion system according to an embodiment of the present application is as follows: The stranding machine 1 first twists multiple optical fibers into one. After that, the synthesized optical fibers will pass through the extruder 2 under the traction of the end cable winder 4. After passing through the extruder 2, a protective sleeve will be wrapped on the surface of the synthesized optical fibers to form a complete optical cable. The complete optical cable enters the cooling device for cooling and shaping after coming out of the extruder 2. The optical cable extends from the top of the first support member 311 to the bottom of the first support member 311, and the optical cable is immersed in the coolant in the cooling pool 31 between the first support member 311 and the second support member 312. After that, while the optical cable is being pulled upward along the slope on the second support member 312 by the cable winder 4, the cable winder 4 drives the water pump to rotate to transport the coolant in the cooling pool 31 to the top of the second support member 312 through the water bucket 322. The coolant in the water bucket 322 flows into the slope between the baffle plates 3122 through the liquid guide groove 3121. The coolant slides down from the top of the slope of the second support member 312 and moves relative to the optical cable moving towards the top of the slope, performing a secondary cooling flush on the optical cable, so that the optical cable is fully cooled, alleviating the problem of poor cooling effect of the coolant. After the optical cable climbs to the top of the second support member 312, it will pass through the cleaning sleeve 313 to wipe and clean the residual coolant on the surface of the optical cable. After that, the wind generated by the drying fan 45 will blow out from the air outlet of the air duct 47 along the air duct 47 to further dry the optical cable. The dried optical cable is finally wound into the drum 41 of the cable winder 4.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An optical cable sheath extrusion system, characterized in that: It includes a cabling machine (1) for twisting multiple optical fibers into one, an extruder (2) for wrapping a protective sleeve around the surface of the synthesized optical fiber to form a complete optical cable, a cooling component (3) for cooling and shaping the optical cable, and a cable winder (4) for winding the optical cable. The cooling component (3) includes a cooling pool (31) for cooling the optical cable. A first support member (311) and a second support member (312) for carrying the optical cable are arranged in the cooling pool (31). The first support member (311) and the second support member (312) are arranged opposite to each other. A slope is provided on the side of the second support member (312) facing the first support member (311). There is a gap between the first support member (311) and the second support member (312). A pumping member (32) for transporting the coolant in the cooling pool (31) to the slope of the second support member (312) is fixed on the side of the cooling pool (31) close to the second support member (312). The specific structure of the pumping member (32) for transporting the coolant in the cooling pool (31) to the slope of the second support member (312) is as follows: The pumping member (32) includes a runner (321) for rotating to transport the coolant from the cooling pool (31) to the slope of the second support member (312) and a water bucket (322) for collecting the coolant. The water buckets (322) are evenly arranged on the outer circumference of the runner (321). The water buckets (322) are arranged along the tangential direction of the outer circumference of the runner (321). The opening direction of the water bucket (322) faces the moving direction of the runner (321). The runner (321) is rotatably connected to the side wall of the second support member (312). The cable winder (4) is equipped with a driving motor (43) for providing power to wind the optical cable. The pumping member (32) and the cable winder (4) are chain-driven through a transmission chain (5). A liquid guide groove (3121) for guiding the coolant that slides out of the pumping member (32) onto the slope of the second support member (312) is provided on the side of the second support member (312) close to the pumping member (32).

2. The optical cable sheath extrusion system according to claim 1, wherein: Liquid retaining plates (3122) for preventing the coolant from flowing out from both sides of the slope are provided on both sides of the slope of the second support member (312).

3. The optical cable sheath extrusion system according to claim 1, wherein: The water bucket (322) at the lowest position on the outer circumference of the runner (321) is immersed in the coolant in the cooling pool (31).

4. A cable sheath extrusion system according to claim 1, characterized in that: A cleaning sleeve (313) for cleaning the residual coolant on the optical cable is provided on the top end face of the second support member (312). The cleaning sleeve (313) includes a cleaning outer shell (3131) and a cleaning soft sleeve (3132). The cleaning outer shell (3131) is fixed on the top end face of the second support member (312). The cleaning soft sleeve (3132) is arranged around the inner wall of the cleaning outer shell (3131). The cleaning soft sleeve (3132) is used to abut against the optical cable.

5. The optical cable sheath extrusion system according to claim 4, characterized in that: The cable rewinder (4) is connected to the drive motor (43) through a first drive rod (44). A drying blower (45) for drying the optical cable is installed at the other end of the first drive rod (44). An air duct (47) for guiding air is installed at the air outlet of the drying blower (45). The other end of the air duct (47) is fixed to the top end face of the second support member (312). The air duct (47) is closer to the cable rewinder (4) than the cleaning sleeve (313).

6. The optical cable sheath extrusion system according to claim 5, characterized in that: A gear set (46) is connected to the other end of the first drive rod (44). The gear set (46) includes a large gear (461) and a small gear (462). The large gear (461) meshes with the small gear (462). The large gear (461) is arranged on the first drive rod (44). The small gear (462) is rotatably connected to the cable rewinder (4). The drying blower (45) cooperates with the small gear (462).

7. A cable sheath extrusion system according to claim 1, characterized in that: A guiding member (6) is provided on the first support member (311), the cooling pool (31) and the second support member (312). The guiding member (6) includes a guiding roller (61) and a support rod (62). The support rod (62) is respectively fixed on the first support member (311), the cooling pool (31) and the second support member (312). A guiding roller (61) for guiding the optical cable is rotatably connected to the support rod (62).

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