An ultraviolet irradiation cross-linking device for cable production

Abstract

The present invention discloses an ultraviolet light irradiation cross-linking device for cable production, belonging to the technical field of cable production, which includes a pre-cooling cylinder, an irradiation box, a discharge cylinder and a liquid cooling component. A spiral flow channel is arranged on the inner wall side of the pre-cooling cylinder. One side of the pre-cooling cylinder is communicated with the irradiation box. A number of heat conduction tubes are arranged on the inner wall side of the irradiation box, and irradiation lamps are sleeved on the heat conduction tubes. The discharge cylinder is connected to the irradiation box, and the end of the heat conduction tube is arranged in the inner cavity of the discharge cylinder. The liquid cooling component is independently arranged at one end of the pre-cooling cylinder. A heat exchange tube is arranged in the liquid cooling box. One end of the heat exchange tube is communicated with the pre-cooling cylinder, and the other end is connected to the irradiation box. By setting a continuous air cooling system in the pre-cooling cylinder, the irradiation box and the discharge cylinder, and a reverse air pumping structure in the pre-cooling cylinder, the present invention can fully and evenly pre-cool the cable before ultraviolet light irradiation, effectively reducing problems such as oxidation of the insulating layer, deformation of the reflector and reduction of the service life of the irradiation lamp caused by overheating of the cable in the irradiation box.

Description

Technical Field

[0001] The present invention belongs to the technical field of cable production, and particularly relates to an ultraviolet irradiation cross-linking device for cable production. Background Art

[0002] Ultraviolet irradiation cross-linking is a technology that uses ultraviolet light to initiate intermolecular cross-linking reactions in materials, and is widely used in the modification and processing of polymer materials. Its basic principle is that through the irradiation of ultraviolet light with a specific wavelength, the photoinitiator in the material absorbs energy and generates free radicals, and these free radicals further initiate cross-linking reactions between molecular chains to form a three-dimensional network structure, thereby significantly improving the physical, chemical, and mechanical properties of the material.

[0003] During ultraviolet irradiation, since the insulating layer outside the cable core has a certain temperature itself, when cross-linking in the irradiation chamber, the insulating layer heats up rapidly, which will not only cause overheating and lead to hydrogenation of the insulating layer, but also cause the irradiation chamber to overheat, resulting in thermal deformation of the reflector and shortening the life of the irradiation lamp due to overheating. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the embodiment of the present invention is to provide an ultraviolet irradiation cross-linking device for cable production to solve the problems in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An ultraviolet irradiation cross-linking device for cable production, including a precooling mechanism, the precooling mechanism includes a precooling cylinder, a spiral flow channel, a central hole, and a guiding cavity. A spiral-shaped spiral flow channel is provided on the inner wall side of the precooling cylinder, and the spiral flow channel is fixedly connected to the inner wall of the precooling cylinder. A central hole is provided in the middle of the spiral flow channel, and the cable to be irradiated is passed through the central hole. A guiding cavity is also provided on one side of the precooling cylinder;

[0007] An irradiation assembly, the irradiation assembly includes an irradiation chamber, a heat conduction tube, and an irradiation lamp. One end of the irradiation chamber is connected to the guiding cavity, and a plurality of heat conduction tubes are circumferentially arranged on the inner wall side of the irradiation chamber, and the irradiation lamp is sleeved on the heat conduction tube;

[0008] A discharging mechanism, the discharging mechanism includes a discharging cylinder, an external spiral flow channel, and an exhaust hole. One end of the discharging cylinder is connected to the irradiation chamber, and the ends of a plurality of the heat conduction tubes are arranged on the inner cavity side of the discharging cylinder. An external spiral flow channel is also provided on the inner wall side of the discharging cylinder, and the cable to be irradiated is passed through the external spiral flow channel. An exhaust hole is also provided on the discharging cylinder, and the exhaust hole is arranged on the side away from the irradiation chamber along the first direction;

[0009] Liquid cooling component, the liquid cooling component includes a liquid cooling box, a heat exchange tube, a gas distribution valve and a guiding tube. The liquid cooling box is independently arranged on one side of the pre-cooling cylinder, and the heat exchange tube passes through the liquid cooling box. One end of the heat exchange tube is connected to the pre-cooling cylinder, and the other end of the heat exchange tube is connected with a gas distribution valve. A plurality of guiding tubes are inserted into the gas distribution valve, and the plurality of guiding tubes are communicated with a plurality of heat conducting tubes.

[0010] As a further scheme of the present invention, the central hole, the guiding cavity and the exhaust hole are all in clearance fit with the cable to be irradiated, and the pre-cooling cylinder, the irradiation box and the discharging cylinder are all coaxially arranged with the cable in the first direction.

[0011] As a further scheme of the present invention, the pre-cooling mechanism further includes a gas guiding outlet, a gas guiding inlet and an air pump. The gas guiding outlet and the gas guiding inlet are respectively arranged at both ends of the pre-cooling cylinder along the first direction, and the gas guiding inlet is arranged close to the guiding cavity in the first direction. The end of the gas guiding inlet is communicated with an air pump, and the end of the gas guiding outlet is communicated with the heat exchange tube.

[0012] As a further scheme of the present invention, the liquid cooling component further includes a liquid cooling tube, a drainage table and a liquid pumping cylinder. The liquid cooling tube is spirally wound in the liquid cooling box and is arranged around the outer wall of the heat exchange tube. The drainage table is arranged at one end of the liquid cooling box, and the liquid pumping cylinder is fixedly arranged on the drainage table. The liquid pumping cylinder contains coolant inside, and the liquid pumping cylinder is communicated with the two side pipe orifices of the heat exchange tube.

[0013] As a further scheme of the present invention, one-way valve orifices are arranged at the communicating positions of the liquid pumping cylinder and the pipe orifices of the heat exchange tube to limit the one-way flow of the coolant in the heat exchange tube and the liquid pumping cylinder.

[0014] As a further scheme of the present invention, the liquid cooling component further includes a transmission wheel, a first transmission arm, a second transmission arm and a liquid pumping rod. The transmission wheel is fixedly arranged on one side of the drainage table, and one end of the transmission wheel is fixedly assembled with a first transmission arm. One end of the second transmission arm is rotatably connected to the first transmission arm, and the other end of the second transmission arm is rotatably connected to the liquid pumping rod. The liquid pumping rod is slidably inserted into the liquid pumping cylinder and a piston is assembled at the end of the liquid pumping rod.

[0015] As a further scheme of the present invention, the ultraviolet light irradiation cross-linking equipment for cable production further includes a feeding component. The feeding component includes a feeding frame, a support, a feeding wheel and a synchronous gear. Two groups of the feeding frames are respectively arranged at one ends of the pre-cooling cylinder and the discharging cylinder along the first direction. A plurality of supports are fixedly arranged on the feeding frame, and the plurality of supports are circumferentially arranged on the outer wall side of the cable to be irradiated. A feeding wheel is also rotatably arranged on the support. Synchronous gears are fixedly assembled at both ends of the feeding wheel, and any two adjacent groups of synchronous gears are meshed and connected.

[0016] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0017] By providing a continuous air-cooling system in the pre-cooling cylinder, the irradiation chamber, and the discharge cylinder, and a reverse air-pumping structure inside the pre-cooling cylinder, the present invention can fully and evenly pre-cool the cable before ultraviolet irradiation, effectively reducing problems such as oxidation of the insulating layer, deformation of the reflector, and reduction of the service life of the irradiation lamp caused by overheating of the cable in the irradiation chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of an ultraviolet irradiation cross-linking device for cable production provided in an embodiment of the present invention.

[0019] Figure 2 It is a schematic structural diagram of an ultraviolet irradiation cross-linking device for cable production provided in an embodiment of the present invention.

[0020] Figure 3 It is a schematic structural diagram of an irradiation component and a discharge mechanism in an ultraviolet irradiation cross-linking device for cable production provided in an embodiment of the present invention.

[0021] Figure 4 It is a schematic structural diagram of the illustrated mark A in an ultraviolet irradiation cross-linking device for cable production provided in an embodiment of the present invention.

[0022] Figure 5 It is a schematic structural diagram of the illustrated mark B in an ultraviolet irradiation cross-linking device for cable production provided in an embodiment of the present invention.

[0023] Reference numerals: 1 - pre-cooling mechanism, 101 - pre-cooling cylinder, 102 - spiral flow channel, 103 - central hole, 104 - guiding cavity, 105 - air guiding outlet, 106 - air guiding inlet, 107 - air pump, 2 - irradiation component, 201 - irradiation chamber, 202 - heat conducting tube, 203 - irradiation lamp, 3 - discharge mechanism, 301 - discharge cylinder, 302 - external spiral flow channel, 303 - exhaust hole, 4 - liquid cooling component, 401 - liquid cooling box, 402 - heat exchange tube, 403 - air distribution valve, 404 - guiding tube, 405 - liquid cooling tube, 406 - drainage platform, 407 - liquid pumping cylinder, 408 - driving wheel, 409 - first driving arm, 410 - second driving arm, 411 - liquid pumping rod, 412 - transmission belt, 5 - feeding component, 501 - feeding frame, 502 - support, 503 - feeding wheel, 504 - synchronous gear, 505 - synchronous belt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail below with reference to the drawings and specific embodiments.

[0025] Please refer toFigures 1 - 5 In one embodiment of the present invention, a UV irradiation cross-linking device for cable production has a relative first direction x, and includes: a pre-cooling mechanism 1, the pre-cooling mechanism 1 including a pre-cooling cylinder 101, a spiral flow channel 102, a central hole 103 and a guide cavity 104, a spiral spiral flow channel 102 is provided on the inner wall side of the pre-cooling cylinder 101, the spiral flow channel 102 is fixedly connected to the inner wall of the pre-cooling cylinder 101, and a central hole 103 is provided in the middle of the spiral flow channel 102, The cable to be irradiated is passed through the central hole 103, and a guide cavity 104 is further provided on one side of the pre-cooling cylinder 101; an irradiation assembly 2, which includes an irradiation box 201, a heat pipe 202 and an irradiation lamp 203, one end of the irradiation box 201 is connected to the guide cavity 104, and a plurality of heat pipes 202 are arranged circumferentially on the inner wall of the irradiation box 201, and an irradiation lamp 203 is sleeved on the heat pipe 202; a discharging mechanism 3, which includes a discharging cylinder 301, an external spiral flow channel 302 and an exhaust hole 303, and one end of the discharging cylinder 301 is connected to the irradiation lamp 203. The irradiation box 201 is connected, and the ends of several heat-conducting pipes 202 are arranged on the inner cavity side of the discharge barrel 301. The inner wall side of the discharge barrel 301 is also provided with an external spiral flow channel 302, and the cable to be irradiated is passed through the external spiral flow channel 302. The discharge barrel 301 is also provided with an exhaust hole 303, and the exhaust hole 303 is arranged along the first direction x on the side away from the irradiation box 201; the liquid cooling component 4, the liquid cooling component 4 includes a liquid cooling box 401, a heat exchange pipe 402, an air distribution valve 403 and a guide pipe 404, and the liquid cooling box 401 is independently arranged on the pre-cooling barrel 1 01 side, and a heat exchange tube 402 is passed through the liquid cooling box 401, one end of the heat exchange tube 402 is connected to the pre-cooling cylinder 101, and the other end of the heat exchange tube 402 is connected to the air dividing valve 403, and a number of guide tubes 404 are plugged into the air dividing valve 403, and the several guide tubes 404 are connected to the several heat conducting tubes 202; the central hole 103, the guide cavity 104 and the exhaust hole 303 are all matched with the gap of the cable to be irradiated, and the pre-cooling cylinder 101, the irradiation box 201 and the discharge cylinder 301 are all coaxially arranged with the cable in the first direction x.

[0026] In practical application of this embodiment, when ultraviolet irradiation cross-linking of a cable is performed through this device, the cable to be irradiated passes through the middle parts of the pre-cooling cylinder 101, the irradiation box 201, and the discharge cylinder 301, and the cable always moves along the first direction x. A spiral flow channel 102 in a spiral shape is arranged on the inner wall side of the pre-cooling cylinder 101, and a central hole 103 is arranged in the middle of the spiral flow channel 102. The central hole 103 is in clearance fit with the cable. When a gas source is input through an external air pump on one side of the pre-cooling cylinder 101, when the gas moves in the inner cavity of the pre-cooling cylinder 101, under the guidance of the flow, the gas moves along the spiral inner cavity of the spiral flow channel 102, and continuously contacts the outer skin of the cable during the flowing process. Since the gas flows in a spiral shape, the gas is in a highly mixed state, and when contacting the outer skin of the cable, it can evenly disperse the heat existing on the outer skin of the cable and discharge the heat out of the pre-cooling cylinder 101 following the flow of the gas. Since a heat exchange tube 402 is also connected to one side of the pre-cooling cylinder 101, when the heat-absorbed gas flows to the liquid cooling box 401 through the heat exchange tube 402, a circulating coolant is arranged inside the liquid cooling box 401. When the coolant contacts the outer tube wall of the heat exchange tube 402, it can disperse the heat contained in the gas into the coolant. The cooled gas continues to flow along the heat exchange tube 402 to the air distribution valve 403. A plurality of guiding tubes 404 are inserted into the air distribution valve 403, so that the cooled gas can flow to a plurality of heat conducting tubes 202 respectively along the plurality of guiding tubes 404. The heat conducting tubes 202 are arranged in the inner cavity of the irradiation box 201 and assembled in the irradiation lamp 203, so that when the irradiation lamp 203 continuously generates heat, it can continuously dissipate heat through the gas flow in the heat conducting tubes 202, and make the temperature in the inner cavity of the irradiation box 201 within an acceptable threshold range. The heated gas flows into the discharge cylinder 301 after passing through the heat conducting tubes 202 and spirally flows along the external spiral flow channel 302 on the inner cavity side of the discharge cylinder 301, so that the gas absorbs the heat in the cable epidermis after irradiation again during the spiral movement process, and discharges the high-temperature gas out of the discharge cylinder 301 along the exhaust holes 303, thereby making the temperature of the cable before and after irradiation cross-linking within the controllable threshold range, and avoiding problems such as oxidation of the insulating layer, thermal deformation of the reflector, and shortening of the service life of the irradiation lamp due to over-temperature in the irradiation box.

[0027] In one case of this embodiment, the central hole 103, the guiding cavity 104, and the exhaust holes 303 are all in clearance fit with the outer skin of the cable to be irradiated, and the influence of the gas escaping from the gaps on the gas flow is negligible and will not be specifically described here.

[0028] Please refer to Figure 1, in a preferred embodiment of the present invention, the pre-cooling mechanism 1 further includes an air guide outlet 105, an air guide inlet 106 and an air pump 107. The air guide outlet 105 and the air guide inlet 106 are respectively arranged at both ends of the pre-cooling cylinder 101 along the first direction x, and the air guide inlet 106 is arranged close to the guiding cavity 104 in the first direction x. The end of the air guide inlet 106 is connected to an air pump 107, and the end of the air guide outlet 105 is connected to the heat exchange tube 402.

[0029] In actual application of this embodiment, the air guide outlet 105 and the air guide inlet 106 are arranged on both sides of the pre-cooling cylinder 101 along the first direction x. The air guide inlet 106 is arranged at one end close to the guiding cavity 104 and is connected to the air pump 107, so that the air pumped out by the air pump 107 preferentially enters the inner cavity of the pre-cooling cylinder 101 from the air guide inlet 106. Since the guiding cavity 104 is arranged between the pre-cooling cylinder 101 and the irradiation box 201, when the cable to be irradiated is on the side close to the guiding cavity 104, it needs to be pre-cooled to below the set temperature value. By setting the air outlet at one end of the guiding cavity 104, the cold air can preferentially contact the cable segment to be irradiated. And during the process of the cold air flowing in the spiral cavity, it can continuously absorb heat and increase in temperature. Due to the different densities of the cold and hot air, there will also be disturbances, which cooperate with the spiral flow to make the cold and hot air evenly mixed and act on the outer surface of the cable, so that the air discharged through the air guide outlet 105 can fully absorb heat, achieving the effect of full heat absorption while improving the heat dissipation efficiency of the air-cooling system. At the same time, the temperature of the air pumped into the liquid-cooling box 401 is increased, thereby improving the heat exchange efficiency between the coolant and the hot air in the liquid-cooling box 401, and further reducing the comprehensive energy consumption of air-cooling and liquid-cooling.

[0030] Please refer to Figure 2 , in a preferred embodiment of this embodiment, the liquid-cooling assembly 4 further includes a liquid-cooling tube 405, a drainage platform 406 and a liquid-pumping cylinder 407. The liquid-cooling tube 405 is spirally wound in the liquid-cooling box 401 and is arranged around the outer wall of the heat exchange tube 402. The drainage platform 406 is arranged at one end of the liquid-cooling box 401, and the liquid-pumping cylinder 407 is fixedly arranged on the drainage platform 406. The liquid-pumping cylinder 407 contains a coolant inside, and the liquid-pumping cylinder 407 is connected to both side pipe orifices of the heat exchange tube 402.

[0031] In practical application of this embodiment, the liquid cooling pipe 405 is spirally wound around the heat exchange pipe 402, so that the coolant pumped in the liquid cooling pipe 405 can fully exchange heat with the outer wall of the heat exchange pipe 402 during the flow process, and the pumping direction of the coolant moves along the negative direction of the first direction x, so that when the coolant flows through the side of the air inlet position of the heat exchange pipe 402 during the flow process, the coolant can fully contact the continuously heating air, making the heat exchange efficiency of the coolant higher when it returns to the drainage platform 406 side. Moreover, a plurality of heat dissipation fins are arranged on the surface of the liquid pumping cylinder 407, so that when the coolant returns to the liquid pumping cylinder 407, it can fully exchange heat with the outside air, thereby increasing the cooling rate of the coolant. In this embodiment, the coolant can also be cooled by an external cooling system, and the specific cooling structure is not limited herein.

[0032] In one case of this embodiment, one-way valve ports are provided at the connection positions of the pipe orifices of the liquid pumping cylinder 407 and the heat exchange pipe 402 to restrict the one-way flow of the coolant in the heat exchange pipe 402 and the liquid pumping cylinder 407.

[0033] Please refer to Figure 2 , in a preferred embodiment of the present invention, the liquid cooling assembly 4 further includes a transmission wheel 408, a first transmission arm 409, a second transmission arm 410, a pumping rod 411 and a transmission belt 412. The transmission wheel 408 is fixedly arranged on one side of the drainage platform 406, and a first transmission arm 409 is fixedly assembled at one end of the transmission wheel 408. One end of the second transmission arm 410 is rotatably connected to the first transmission arm 409, and the other end of the second transmission arm 410 is rotatably connected to the pumping rod 411. The pumping rod 411 is slidably inserted into the liquid pumping cylinder 407 and a piston is assembled at the end of the pumping rod 411.

[0034] In practical application of this embodiment, the transmission wheel 408 is fixedly arranged on one side of the drainage platform 406, and the transmission wheel 408 is linked with any one of the feeding assemblies 5, so that the transmission wheel 408 rotates around the fixed axis in a fixed clockwise direction. During the rotation process of the transmission wheel 408, the first transmission arm 409 is synchronously driven to rotate. Since the end of the first transmission arm 409 is rotatably connected to the second transmission arm 410, and the end of the second transmission arm 410 is rotatably connected to the pumping rod 411, the crank-rocker mechanism composed of the first transmission arm 409 and the second transmission arm 410 can drive the pumping rod 411 to reciprocate in the first direction x. When the piston assembled on the pumping rod 411 reciprocally slides inside the liquid pumping cylinder 407, the inner cavity of the liquid pumping cylinder 407 can be in a state of alternating positive and negative pressure. When the inner cavity of the liquid pumping cylinder 407 is in a negative pressure state, the coolant in the liquid cooling pipe 405 can be sucked into the inner cavity of the liquid pumping cylinder 407 for cooling, and when the inner cavity of the liquid pumping cylinder 407 is in a positive pressure state, the coolant in the liquid pumping cylinder 407 can be pumped into the liquid cooling pipe 405 again to achieve circular flow.

[0035] Please refer to Figure 5 Figure 5 In a preferred embodiment of the present invention, the ultraviolet light irradiation cross-linking device for cable production further includes a feeding assembly 5. The feeding assembly 5 includes a feeding frame 501, a bracket 502, a feeding wheel 503 and a synchronous gear 504. Two sets of the feeding frames 501 are respectively arranged at one end of the pre-cooling cylinder 101 and the discharging cylinder 301 along the first direction x. A plurality of brackets 502 are fixedly arranged on the feeding frame 501. The plurality of brackets 502 are circumferentially arranged on the outer wall side of the cable to be irradiated. A feeding wheel 503 is rotatably arranged on the bracket 502. Synchronous gears 504 are fixedly assembled at both ends of the feeding wheel 503. Any two adjacent sets of synchronous gears 504 are meshed and connected.

[0036]

[0036] In actual application of this embodiment, two sets of the feeding frames 501 are arranged at both ends of the pre-cooling cylinder 101 and the discharging cylinder 301. A plurality of brackets 502 are fixedly arranged on the feeding frame 501. The brackets 502 are circumferentially arranged outside the cable, and the plurality of brackets 502 are centrosymmetric with the cable as the axis. The feeding wheels 503 assembled on the brackets 502 roll and fit on the outer wall of the cable. A plurality of feeding wheels 503 are connected by transmission through synchronous gears 504. And a synchronous belt 505 is transmission-assembled on one set of feeding wheels 503 among a plurality of sets of feeding wheels 503. The synchronous belt 505 is connected to an external drive source. The external drive source is preferably driven by a servo motor to ensure the uniform movement of the cable in the pre-cooling cylinder 101, the spiral flow channel 102 and the central hole 103.

[0037]

[0037] In the above embodiment of the present invention, an ultraviolet light irradiation cross-linking device for cable production is provided. By arranging a continuous air-cooling system in the pre-cooling cylinder 101, the irradiation chamber 201 and the discharging cylinder 301, and arranging a reverse air-pumping structure inside the pre-cooling cylinder 101, the cable can be fully pre-cooled before ultraviolet light irradiation, effectively reducing problems such as oxidation of the insulating layer, deformation of the reflector and reduction of the service life of the irradiation lamp caused by overheating of the cable in the irradiation chamber.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An ultraviolet irradiation crosslinking device for cable production, the ultraviolet irradiation crosslinking device for cable production having an opposite first direction, characterized in that, The ultraviolet light irradiation cross-linking equipment for cable production includes: A pre-cooling mechanism, which includes a pre-cooling cylinder, a spiral flow channel, a central hole, and a guiding cavity. A spiral-shaped spiral flow channel is provided on the inner wall side of the pre-cooling cylinder, and the spiral flow channel is fixedly connected to the inner wall of the pre-cooling cylinder. A central hole is provided in the middle of the spiral flow channel, and the cable to be irradiated is passed through the central hole. A guiding cavity is also provided on one side of the pre-cooling cylinder; An irradiation assembly, which includes an irradiation box, a heat-conducting pipe, and an irradiation lamp. One end of the irradiation box is communicated with the guiding cavity, and a number of heat-conducting pipes are circumferentially arranged on the inner wall side of the irradiation box, and irradiation lamps are sleeved on the heat-conducting pipes; A discharging mechanism, which includes a discharging cylinder, an external spiral flow channel, and an exhaust hole. One end of the discharging cylinder is connected to the irradiation box, and the ends of a number of the heat-conducting pipes are arranged on the inner cavity side of the discharging cylinder. An external spiral flow channel is also provided on the inner wall side of the discharging cylinder, and the cable to be irradiated is passed through the external spiral flow channel. An exhaust hole is also provided on the discharging cylinder, and the exhaust hole is arranged on the side away from the irradiation box along the first direction; A liquid-cooling assembly, which includes a liquid-cooling box, a heat-exchanging pipe, a gas distribution valve, and a guiding pipe. The liquid-cooling box is independently arranged on one side of the pre-cooling cylinder, and a heat-exchanging pipe is passed through the liquid-cooling box. One end of the heat-exchanging pipe is communicated with the pre-cooling cylinder, and the other end of the heat-exchanging pipe is connected with a gas distribution valve. A number of guiding pipes are inserted into the gas distribution valve, and a number of the guiding pipes are communicated with a number of the heat-conducting pipes.

2. The ultraviolet irradiation cross-linking equipment for cable production according to claim 1, characterized in that, The central hole, the guiding cavity, and the exhaust hole are all in clearance fit with the cable to be irradiated, and the pre-cooling cylinder, the irradiation box, and the discharging cylinder are all coaxially arranged with the cable in the first direction.

3. The ultraviolet irradiation cross-linking equipment for cable production according to claim 1, characterized in that, The pre-cooling mechanism further includes a gas guiding outlet, a gas guiding inlet, and a gas pump. The gas guiding outlet and the gas guiding inlet are respectively arranged at both ends of the pre-cooling cylinder along the first direction, and the gas guiding inlet is arranged close to the guiding cavity in the first direction. The end of the gas guiding inlet is communicated with a gas pump, and the end of the gas guiding outlet is connected with the heat-exchanging pipe.

4. The ultraviolet irradiation cross-linking device for cable production according to claim 1, wherein, The liquid-cooling assembly further includes a liquid-cooling pipe, a drainage platform, and a liquid pumping cylinder. The liquid-cooling pipe is spirally wound in the liquid-cooling box and is arranged around the outer wall of the heat-exchanging pipe. The drainage platform is arranged at one end of the liquid-cooling box, and the liquid pumping cylinder is fixedly arranged on the drainage platform. The liquid pumping cylinder contains coolant inside, and the liquid pumping cylinder is communicated with both pipe orifices of the heat-exchanging pipe.

5. An ultraviolet irradiation cross-linking device for cable production according to claim 4, characterized in that, One-way valve orifices are provided at the communicating positions of the pipe orifices of the liquid pumping cylinder and the heat-exchanging pipe to limit the one-way flow of the coolant in the heat-exchanging pipe and the liquid pumping cylinder.

6. An ultraviolet irradiation cross-linking device for cable production according to claim 4, characterized in that, The liquid-cooling assembly further includes a transmission wheel, a first transmission arm, a second transmission arm, and a liquid pumping rod. The transmission wheel is fixedly arranged on one side of the drainage platform, and one end of the transmission wheel is fixedly equipped with a first transmission arm. One end of the second transmission arm is rotatably connected to the first transmission arm, and the other end of the second transmission arm is rotatably connected to the liquid pumping rod. The liquid pumping rod is slidably inserted into the liquid pumping cylinder and a piston is assembled at the end of the liquid pumping rod.

7. An ultraviolet irradiation cross-linking device for cable production according to claim 1, characterized in that, The ultraviolet light irradiation cross-linking equipment for cable production further includes a feeding assembly. The feeding assembly includes a feeding frame, a bracket, a feeding wheel and a synchronous gear. The two feeding frames are respectively arranged at one end of the pre-cooling cylinder and the discharging cylinder along the first direction. A plurality of brackets are fixedly arranged on the feeding frame. The plurality of brackets are circumferentially arranged on the outer wall side of the cable to be irradiated. A feeding wheel is also rotatably arranged on the bracket. Synchronous gears are fixedly assembled at both ends of the feeding wheel, and any two adjacent synchronous gears are meshed with each other.

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