Extrusion molding device for cable manufacturing

Abstract

The invention belongs to the technical field of cable manufacturing devices, and particularly relates to an extrusion molding device for cable manufacturing, which comprises an extruder and a flaw detection-heat dissipation system, and the flaw detection-heat dissipation system comprises a flaw detection device, an air cooling device and a water cooling device; an extrusion pipe is mounted on the right side of the extruder; the flaw detection device comprises a ray generator and a protective shell, a glass tube is mounted in the protective shell, the glass tube is leftwards communicated with the extrusion tube, and the extruded cable is rightwards conveyed into the flaw detection device through the extrusion tube; the air cooling device comprises an air cooling device shell, a heat dissipation exchange window, an air blower and a circulating device; according to the scheme, the extruder is organically combined with a flaw detection-heat dissipation system, so that the integrated operation of molding, flaw detection and cooling of the cable is realized, and the problems of dispersed working procedures and low efficiency of the existing equipment are effectively solved. The production efficiency and the product quality of cable manufacturing can be remarkably improved, the production cost is reduced, and important economic value is achieved for the cable production industry.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable manufacturing devices, in particular to an extrusion molding device for cable manufacturing. BACKGROUND

[0002] In the modern cable manufacturing industry, the production quality and efficiency of cables are crucial to meet market demand and enhance enterprise competitiveness. The manufacturing process of cables usually includes extrusion molding, flaw detection, and cooling, etc. Currently, there are some problems in the extrusion molding process of cables. On the one hand, traditional cable production equipment often disperses the processes of extrusion molding, flaw detection, and cooling, etc. Additional transmission equipment and manual operation are needed to connect each process, which not only increases the cost and floor space of equipment, but also leads to a complicated production process, low efficiency, and possible damage to the cable during transmission, affecting product quality. In terms of flaw detection, most existing flaw detection technologies cannot perform comprehensive and accurate detection immediately after cable extrusion molding. Some flaw detection equipment has low detection accuracy and cannot detect small internal defects such as bubbles and cracks. The cooling process of cables also faces many challenges. Traditional cooling methods mainly use single air cooling or water cooling technology, which has low cooling efficiency and cannot quickly reduce the temperature of the molded cable to an appropriate range, thereby severely restricting the improvement of production speed. Moreover, single cooling methods often cannot guarantee the uniformity of cable cooling, which can cause deformation, cracking, and other quality problems due to uneven temperature changes, affecting the performance and service life of the cable. SUMMARY

[0003] The present application aims to provide an extrusion molding device for cable manufacturing to solve the problems mentioned in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solution: an extrusion molding device for cable manufacturing, comprising an extruder and a flaw detection-cooling system, the flaw detection-cooling system comprising a flaw detection device, an air cooling device, and a water cooling device; an extrusion pipe is installed on the right side of the extruder; the flaw detection device comprises a radiation generator and a protective shell, a glass tube is installed in the protective shell, the glass tube is in communication with the extrusion pipe to the left, and the extruded cable is transmitted to the right to the flaw detection device through the extrusion pipe; The air cooling device comprises an air cooling device shell, a heat exchange window, a blower, and a circulation device, two layers of lining pipes are arranged in the inner cavity of the air cooling device shell, an air passing cavity is reserved between the outer lining pipe and the air cooling device shell, and an air passing cavity is reserved between the inner lining pipe and the outer lining pipe; the heat exchange window is a water cooling exchange window with heat exchange function; The water cooling device comprises a water cooling shell, a circulating heat dissipation system and an extended cooling pipe, the circulating heat dissipation system comprises a heat dissipation water tank, a standby water tank, a spiral heat absorbing pipe and a connecting pipe, the circulating heat dissipation system is filled with circulating cooling liquid, and the cooling liquid is transmitted through the connecting pipe; The control system is matched with the flaw detection-heat dissipation system, and comprises a programmable logic controller and detection sensors arranged in the device; air pressure-temperature detection sensors are arranged on the side walls of the air passing cavity and the air permeating cavity of the air cooling device, and liquid level-water temperature detection sensors are arranged in the inner cavity of the heat dissipation exchange window; Liquid level-water temperature detection sensors are arranged in the inner cavities of the spiral heat absorbing pipe, the heat dissipation water tank and the standby water tank of the water cooling device; the detection sensors detect the temperature changes of the parts in real time, and when the temperature rises to a preset value, the execution device connected with the control system actively completes the instruction action.

[0005] Preferably, the surfaces of the inner lining pipes of the inner layer are uniformly provided with mesh pattern heat dissipation windows; the surfaces of the outer lining pipes of the outer layer are uniformly provided with broad mouth heat dissipation windows; the opening diameters of the broad mouth heat dissipation windows are 2-5 times of the opening diameters of the mesh pattern heat dissipation windows; the mesh pattern heat dissipation windows and the broad mouth heat dissipation windows are responsible for guiding the heat on the formed cable to the air permeating cavity and the air passing cavity for diffusion; Right symmetrical air blowers are arranged on the front and rear sides of the air cooling device shell; installation grooves are arranged at the positions where the air cooling device shell and the air blowers are connected, and rubber sealing rings are arranged at the positions where the edges of the installation grooves and the air blowers are connected; a fixing frame is arranged below the air blowers, a blower driving motor is arranged on the top of the fixing frame, and a metal gauze is arranged on the air blowers. The air blowers blow air into the air passing cavity, and a low pressure area is formed in the air passing cavity, while a high pressure area is formed in the air permeating cavity due to the hot air flow; under the action of the air pressure difference, the air in the high pressure area flows to the low pressure area at a high speed, and the hot air in the air permeating cavity diffuses into the air passing cavity at a high speed, so that the heat dissipation is accelerated.

[0006] Preferably, left symmetrical heat dissipation exchange windows are arranged on the front and rear sides of the air cooling device shell; the heat dissipation exchange windows are connected with the air passing cavity inwards, and the hot air in the air passing cavity is diffused through the heat dissipation exchange windows, so that the air cooling heat dissipation is achieved. The inner cavities of the heat dissipation exchange windows are hollow, and cooling medium can be filled in the inner cavities of the heat dissipation exchange windows; a circulating device is arranged below the heat dissipation exchange windows; the circulating device comprises a water replacement adapter, a water injection pump and water pipes; the water replacement adapter is arranged at the bottom of the heat dissipation exchange window and connected with the inner cavity of the heat dissipation exchange window; two water pipes are arranged on the water replacement adapter, one for water inlet and the other for water outlet; the water pipe for water inlet is connected with the water injection pump, and the water inlet of the water injection pump is connected with a water source through a water pipe; the water outlet of the water replacement adapter is connected with an external water source through a water pipe, so that the heated water is transferred to the outside for secondary use. The heat dissipation exchange window is uniformly provided with exchange pipes made of aluminum alloy, and an air outlet is reserved between adjacent exchange pipes. The airflow exchanges heat with the liquid in the exchange pipes.

[0007] Preferably, the inner cavity of the water-cooled shell is provided with an inner tube, and the formed cable passes through the inner cavity of the inner tube; the spiral heat absorption pipe is sleeved on the outer side of the inner tube, and heat exchange is realized through heat conduction. The heat dissipation water tank is installed on the top of the water-cooled shell; the heat dissipation water tank comprises a heat dissipation water storage tank and a heat dissipation integrated fan, the heat dissipation integrated fan is installed on the right side wall of the heat dissipation water storage tank, and a fin plate is further installed between the heat dissipation integrated fan and the heat dissipation water storage tank. The heat dissipation water tank and the spiral heat absorption pipe are provided with a check device, the check device comprises a check valve, a support base and a suction pump, the support base is installed at the bottom of the check valve, and the suction pump is installed between the check valve and the heat dissipation water storage tank and is communicated with each other through a connecting pipe.

[0008] Preferably, the standby water tank is installed on the front side of the water-cooled shell; the standby water tank comprises a standby water storage tank and a heat dissipation fin plate, the heat dissipation fin plate is installed on the front side of the standby water storage tank, and is used to increase the heat dissipation efficiency of the surface of the standby water storage tank; a liquid pump is installed on the top of the standby water storage tank, and the liquid pump is connected with the heat dissipation water storage tank through a connecting pipe, and the liquid pump is responsible for pumping the cooling liquid in the heat dissipation water storage tank out. The bottom of the standby water storage tank is provided with a pressurized liquid pump, the pressurized liquid pump is communicated with the spiral heat absorption pipe through a connecting pipe, and the pressurized liquid pump is responsible for pressurizing and pumping the cooling liquid in the standby water tank to the spiral heat absorption pipe.

[0009] Preferably, the top and bottom of the spiral heat absorption pipe are provided with an adapter main pipe, the side away from the spiral heat absorption pipe of the adapter main pipe is provided with an adapter valve, and the adapter valve is connected with the heat dissipation water storage tank and the standby water storage tank through a connecting pipe. A plurality of adapter branch pipes are distributed between the adapter main pipe and the spiral heat absorption pipe, the adapter branch pipes are respectively connected with the spiral heat absorption pipe from different positions, and the spiral heat absorption pipe is simultaneously injected or outputted at multiple positions. Each of the adapter branch pipes is provided with a drainage cavity, the drainage cavity is communicated with the spiral heat absorption pipe, and a one-way valve is installed at the position where each drainage cavity contacts the spiral heat absorption pipe; the drainage cavity adopts a design of narrow at both ends and wide in the middle.

[0010] Preferably, the inner cavity of the extension cooling pipe is also provided with an inner tube, and a filling cavity is reserved between the extension cooling pipe and the inner tube; a control valve is installed at the bottom and the rear side of the extension cooling pipe respectively, and is responsible for injecting and discharging the cooling medium in the filling cavity; a discharge port is formed in the right side of the extension cooling pipe. The cooling medium is injected into the filling cavity, heat exchange can be realized when the cable is passing, and the length of the extension cooling pipe can be customized according to requirements, so that the water jacket cooling cooling purpose is realized by prolonging the length of the extension cooling pipe, and the temperature of the formed cable is effectively reduced in order by cooperating with the left device.

[0011] Preferably, the spiral heat absorption pipe is responsible for absorbing heat and then conveying the cooling liquid into the heat dissipation water tank, the heat dissipation water tank is responsible for cooling the heated cooling liquid, and the cooled cooling liquid is conveyed into the standby water tank for standby, when the cooling liquid in the spiral heat absorption pipe is conveyed out, new low-temperature cooling liquid is immediately injected from the standby water tank, so that the cooling process is circulated, and three storage containers can realize non-interval cooling operation.

[0012] Compared with the prior art, the beneficial effects of the present application are: The present application realizes the integration of cable forming, defect detection and cooling by organically combining the extruder with the defect detection and heat dissipation system, effectively solves the problems of dispersed process and low efficiency of existing equipment. The defect detection device can timely perform high-precision defect detection after cable forming, ensuring product quality; the multi-stage cooling system combining air cooling, water cooling and water jacket cooling greatly improves the cooling efficiency and cooling uniformity; at the same time, the intelligent control system can monitor the equipment operation parameters in real time, realizes intelligent control of the equipment, and improves the stability and reliability of the production process. The implementation of the present application will significantly improve the production efficiency and product quality of cable production, reduce production cost, and has important economic value for cable production industry. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a front view of the present application; Figure 2 is a rear view of the present application; Figure 3 is a side view of the present application; Figure 4 is a schematic view of the defect detection and heat dissipation system of the present application; Figure 5 is a schematic view of the air cooling device of the present application; Figure 6 is a schematic view of the heat dissipation exchange window of the present application; Figure 7 is a schematic view of the water cooling device of the present application; Figure 8 is a rear view of the heat dissipation water tank of the present application; Figure 9 is a schematic view of the circulating heat dissipation system structure of the water cooling device of the present application; Figure 10 is a schematic view of the drainage cavity structure of the present application.

[0014] In the figure: 10 extruder, 101 extrusion tube; 20 flaw detection device, 201 ray generator, 202 protective shell; 30 air cooling device, 301 air cooling device shell, 302 heat dissipation exchange window, 303 air blower, 305 metal screen, 306 air passing cavity, 307 air passing cavity, 308 net format heat dissipation window, 309 wide mouth heat dissipation window, 310 exchange pipe, 311 air outlet; 304 circulating device, 304-1 water changing adapter, 304-2 water injection pump, 304-3 water pipe; 40 water cooling device, 401 water cooling shell, 406 connecting pipe, 407 inner bag pipe, 408 spiral heat absorbing pipe, 409 adapter valve, 410 adapter main pipe, 411 adapter branch pipe, 412 drainage cavity; 402 heat dissipation water tank, 402-1 heat dissipation water storage tank, 402-2 heat dissipation integrated fan; 403 standby water tank, 403-1 standby water storage tank, 403-2 heat dissipation fin plate; 404 check valve, 404-1 check valve, 404-2 support base, 404-3 suction pump; 405 extension cooling pipe, 405-1 filling cavity, 405-2 control valve; 50 discharge port. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0016] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0017] Embodiment: Please refer to Figures 1-10 The present application provides the following technical solutions: an extrusion molding device for cable production, which realizes integrated operation of cable molding, flaw detection and cooling, reduces the connection time and material transfer process between different processes, and makes the production process more compact and efficient. It comprises an extruder 10 and a flaw detection-heat dissipation system, the flaw detection-heat dissipation system comprises a flaw detection device 20, an air cooling device 30 and a water cooling device 40; an extrusion pipe 101 is installed on the right side of the extruder 10; The flaw detection device 20 comprises a ray generator 201 and a protective shell 202, a glass pipe is installed in the protective shell 202, and the glass pipe is in communication with the extrusion pipe 101 to the left, and the extruded cable is transmitted to the flaw detection device 20 to the right through the extrusion pipe 101 for flaw detection; The air cooling device 30 comprises an air cooling device shell 301, a blower 303 and a circulating device 304, two layers of lining pipes are arranged in the inner cavity of the air cooling device shell 301, a wind passing cavity 306 is reserved between the outer lining pipe and the air cooling device shell 301, and a wind passing cavity 307 is reserved between the inner lining pipe and the outer lining pipe; The formed cable transversely passes through the inner cavity of the inner lining pipe, and the surface of the inner lining pipe is uniformly provided with a mesh heat dissipation window 308; the surface of the outer lining pipe is uniformly provided with a broad-mouth heat dissipation window 309; the opening diameter of the broad-mouth heat dissipation window 309 is 2-5 times of the opening diameter of the mesh heat dissipation window 308; the mesh heat dissipation window 308 and the broad-mouth heat dissipation window 309 are responsible for guiding the heat on the formed cable to the wind passing cavity 307 and the wind passing cavity 306 for diffusion; The blower 303 is symmetrically installed on the right part of the front and back sides of the air cooling device shell 301, mounting grooves are arranged at the positions where the air cooling device shell 301 and the blower 303 are connected, and rubber sealing rings are arranged at the positions where the edges of the mounting grooves and the blower 303 are in contact; A fixing frame is arranged below the blower 303, a blower driving motor is arranged on the top of the fixing frame, and a metal gauze 305 is arranged on the blower 303 to block flying insects or large particles of dust; The blower 303 blows air into the wind passing cavity 306, according to Bernoulli's principle, the air blowing area has a lower air pressure than the surrounding area, a low pressure area is formed in the wind passing cavity 306, and a high pressure area is formed in the wind passing cavity 307 due to the hot air flow, under the action of the air pressure difference, the air in the high pressure area flows to the low pressure area at a high speed, so that the hot air in the wind passing cavity 307 diffuses into the wind passing cavity 306 at a high speed, the pressure difference drives the hot air to flow out through the window at a high speed, so that the heat dissipation efficiency is improved; Heat exchange windows 302 are symmetrically installed on the left part of the front and back sides of the air cooling device shell 301, the heat exchange windows 302 are in communication with the wind passing cavity 306, and the hot air in the wind passing cavity 306 is diffused through the heat exchange windows 302, so that the purpose of air cooling heat dissipation is achieved; The heat dissipation exchange window 302 is a water-cooled exchange window with heat exchange function. The inner cavity of the heat dissipation exchange window 302 is hollow, and water flow can be filled in the inner cavity of the heat dissipation exchange window 302. The circulating device 304 is installed below the heat dissipation exchange window 302. The circulating device 304 includes a water replacement adapter 304-1, a water injection pump 304-2, and water pipes 304-3. The water replacement adapter 304-1 is installed at the bottom of the heat dissipation exchange window 302 and is in communication with the inner cavity of the heat dissipation exchange window 302. Two water pipes 304-3 are installed on the water replacement adapter 304-1, one for water inlet and one for water outlet. The water pipe 304-3 for water inlet is connected with the water injection pump 304-2, and the water inlet of the water injection pump 304-2 is connected with a water source through the water pipe 304-3. The water outlet of the water replacement adapter 304-1 is connected to the outside through the water pipe 304-3, and the heated water is transferred to the outside for secondary use. The heat dissipation exchange window 302 is uniformly distributed with exchange pipes 310, which are made of aluminum alloy and have good heat absorption performance. Adjacent exchange pipes 310 are provided with air outlets 311. The airflow in the airflow cavity 307 is discharged through the air outlets 311 and exchanges heat with the liquid in the exchange pipes 310 when passing through the exchange pipes 310, thereby collecting and utilizing heat twice. The water-cooled device 40 includes a water-cooled shell 401, a circulating heat dissipation system, and an extension cooling pipe 405. The circulating heat dissipation system includes a heat dissipation water tank 402, a standby water tank 403, a spiral heat absorption pipe 408, and a connecting pipe 406. The circulating heat dissipation system is filled with circulating cooling liquid, and the cooling liquid is transmitted through the connecting pipe 406. The multi-stage cooling method (air cooling, water cooling, and water jacket cooling) can quickly reduce the temperature of the cable, effectively shorten the cable cooling time, thereby accelerating the production rhythm and improving the cable production per unit time. The spiral heat absorption pipe 408 is responsible for absorbing heat and then delivering the cooling liquid to the heat dissipation water tank 402. The heat dissipation water tank 402 is responsible for cooling the heated cooling liquid, and the cooled cooling liquid is delivered to the standby water tank 403 for standby. When the cooling liquid in the spiral heat absorption pipe 408 is delivered, new low-temperature cooling liquid is immediately injected from the standby water tank 403, realizing the circulation of the cooling process. Three storage containers can realize continuous cooling operation without interval. The inner cavity of the water-cooled shell 401 is provided with an inner pipe 407, and the shaped cable passes through the inner cavity of the inner pipe 407. The spiral heat absorption pipe 408 is sleeved on the outer side of the inner pipe 407, and heat exchange is performed through heat conduction. The heat dissipation water tank 402 is installed on the top of the water-cooled shell 401; the heat dissipation water tank 402 comprises a heat dissipation storage water tank 402-1 and a heat dissipation integrated fan 402-2, the heat dissipation integrated fan 402-2 is installed on the right side wall of the heat dissipation storage water tank 402-1, and a fin plate is further installed between the heat dissipation integrated fan 402-2 and the heat dissipation storage water tank 402-1, so as to increase the heat dissipation efficiency; the heat in the heat dissipation storage water tank 402-1 is dissipated through the heat dissipation integrated fan 402-2; The heat dissipation water tank 402 is installed with a check device 404 between the heat dissipation water tank 402 and the spiral heat absorption pipe 408, the check device 404 comprises a check valve 404-1, a supporting base 404-2 and a suction pump 404-3, the supporting base 404-2 is installed on the bottom of the check valve 404-1, and the suction pump 404-3 is installed between the check valve 404-1 and the heat dissipation storage water tank 402-1 and communicates with each other through the connecting pipe 406; The standby water tank 403 is installed on the front side of the water-cooled shell 401; the standby water tank 403 comprises a standby storage water tank 403-1 and a heat dissipation fin plate 403-2, the heat dissipation fin plate 403-2 is installed on the front side of the standby storage water tank 403-1, so as to increase the heat dissipation efficiency of the surface of the standby storage water tank 403-1 and dissipate the residual heat in the standby storage water tank 403-1; a liquid pump is installed on the top of the standby storage water tank 403-1, and the liquid pump is connected with the heat dissipation storage water tank 402-1 through the connecting pipe 406, and the liquid pump is responsible for pumping the cooling liquid in the heat dissipation storage water tank 402-1 away; The bottom of the standby storage water tank 403-1 is installed with a pressurized liquid pump, the pressurized liquid pump communicates with the spiral heat absorption pipe 408 through the connecting pipe 406, and the pressurized liquid pump is responsible for pressurizing and pumping the cooling liquid in the standby water tank 403-1 to the spiral heat absorption pipe 408; The top and bottom of the spiral heat absorption pipe 408 are provided with an adapter main pipe 410, the side of the adapter main pipe 410 away from the spiral heat absorption pipe 408 is provided with an adapter valve 409, and the adapter valve 409 is connected with the heat dissipation storage water tank 402-1 and the standby storage water tank 403-1 through the connecting pipe 406; A plurality of adapter branch pipes 411 are distributed between the adapter main pipe 410 and the spiral heat absorption pipe 408, the adapter branch pipes 411 are connected with the spiral heat absorption pipe 408 from different positions respectively, so as to realize the simultaneous injection or output of multiple positions of the spiral heat absorption pipe 408, avoid the problem of uneven temperature change of the spiral heat absorption pipe 408, and prolong the service life of the spiral heat absorption pipe 408; Each adapter branch pipe 411 is provided with a drainage cavity 412, the drainage cavity 412 communicates with the spiral heat absorption pipe 408, and a one-way valve is installed at the position where each drainage cavity 412 contacts the spiral heat absorption pipe 408; The drainage cavity 412 adopts a design of narrow at both ends and wide in the middle, and the flow rate of the cooling liquid is reduced due to the widened channel in the middle part when the cooling liquid passes through, the gradual change shape can make the fluid change the flow rate and direction more smoothly during the flow, reduce the turbulence and vortex of the fluid, thereby reducing the energy loss, and the impact of the fluid on the inner wall of the spiral heat absorption pipe 408 can significantly improve the transmission efficiency of the cooling liquid in the pipe; The inner liner pipe 407 is also arranged in the inner cavity of the extension cooling pipe 405, and a filling cavity 405-1 is reserved between the extension cooling pipe 405 and the inner liner pipe 407; The extension cooling pipe 405 has two cooling modes, one mode is to inject a cooling medium (water or glycol solution) into the filling cavity 405-1, and heat exchange can be achieved when the shaped cable passes through, and the length of the extension cooling pipe 405 can be customized as needed, and the purpose of water jacket cooling is achieved by lengthening the length of the extension cooling pipe 405, and the temperature of the shaped cable is effectively lowered in order with the left device; A control valve 405-2 is installed at the bottom and rear side of the extension cooling pipe 405 respectively, responsible for injecting and discharging the cooling medium in the filling cavity 405-1; The other mode is to extend the spiral heat absorption pipe 408 to the right and sleeve on the inner liner pipe 407, extend the contact range of the spiral heat absorption pipe 408 with the shaped cable, improve the heat exchange efficiency, and achieve the purpose of effective cooling; the two modes can be changed as needed, and the length of the spiral heat absorption pipe 408 needs to be customized when switching modes; The present application realizes the integration of cable shaping, defect detection and cooling, solves the subsequent complex working conditions and the possible equipment cost problem, is very convenient and efficient; the present scheme can rapidly lower the temperature of the shaped cable, and the shaped cable sequentially passes through the first stage of air cooling, the second stage of water cooling and the third stage of water jacket cooling, so as to achieve the purpose of rapid cooling, effectively shorten the cooling time of the cable, and then the production speed can be improved; The right side of the extension cooling pipe 405 is provided with a discharge port 50; A control system is matched with the defect detection and heat dissipation system, the control system includes a programmable logic controller PLC and a detection sensor arranged in the device, and air pressure-temperature detection sensors are installed on the side walls of the air passing cavity 306 and the air passing cavity 307 of the air cooling device 30, and liquid level-water temperature detection sensors are installed in the inner cavities of the spiral heat absorption pipe 408, the heat dissipation water tank 402 and the standby water tank 403 of the water cooling device 40; Liquid level-water temperature detection sensors are installed in the inner cavities of the spiral heat absorption pipe 408, the heat dissipation water tank 402 and the standby water tank 403 of the water cooling device 40; Through the above-mentioned sensor real-time detection of temperature changes in each part, when the temperature rises to the preset value, or through the actuator connected to the control system to actively complete the instruction action, very convenient.

[0018] The working principle of the present scheme is as follows: Flaw detection: The extruder 10 heats the plastic particles to a molten state, and continuously extrudes the cable through the extrusion pipe 101; the cable temperature is about 180-220℃ initially, depending on the material; The cable enters the flaw detection device 20 through the glass tube in the protective shell 202, the ray generator 201 emits X-rays, and the cable is detected for flaws, the glass tube in the protective shell 202 is in communication with the extrusion pipe 101, which ensures that the cable passes through the flaw detection area smoothly without hindering the X-ray perspective, and the protective shell 202 plays a role in preventing the leakage of rays, and detects the internal bubbles, cracks and other defects of the cable in real time, with a detection accuracy of ≤0.1mm; if a defect is detected, the PLC control system triggers an alarm and marks the defect position; The rays penetrate the cable in the form of a cone-shaped beam, and the energy is adjusted according to the cable material (PVC: 80-150kV, XLPE: 150-300kV); Normal part: uniform attenuation of rays, stable intensity received by the detector; Defect part (bubble / crack / impurity): Bubble: decreased attenuation of rays → enhanced detector signal; Metal impurity: increased attenuation of rays → weakened detector signal; Sensitivity: can detect micro-defects ≥0.1mm; The detector data is transmitted to the control system, and a cable cross-sectional image is generated by algorithm (resolution 0.05mm / pixel); when a defect is found, the system triggers an audible and light alarm, marks the defect position (accuracy ±1cm), and can be linked to stop (threshold value needs to be preset); Air cooling: The formed cable passes through the inner cavity of the inner lining pipe of the air cooling device 30 from the left to the right; the net-shaped heat dissipation window 308 on the surface of the inner lining pipe and the broad-mouthed heat dissipation window 309 on the surface of the outer lining pipe guide the heat of the cable to the air permeation cavity 307 and the air passing cavity 306; The air blower 303 on the right side of the front and rear sides of the air cooling device shell 301 blows air into the air passing cavity 306, according to Bernoulli's principle, a low-pressure area is formed in the air passing cavity 306, and a high-pressure area is formed in the air permeation cavity 307 due to the hot air flow, under the action of the pressure difference, the hot air in the air permeation cavity 307 diffuses to the air passing cavity 306 at a faster speed, achieving accelerated heat dissipation; The hot air in the air cavity 306 is dissipated through the heat exchange windows 302 on the left sides of the front and rear sides of the air cooling device housing 301. The heat exchange windows 302 are water-cooled exchange windows with heat exchange functions. Their inner cavity is filled with water, which circulates through the circulation device 304. The water injection pump 304-2 of the circulation device draws water from the water supply and sends it to the heat exchange windows 302 through the water pipe 304-3. After removing the heat, the hot water is transferred to the outside through the water exchange adapter 304-1 and the water pipe 304-3 for secondary use. The aluminum alloy exchange tubes 310 on the heat exchange window 302 have good heat absorption performance. When the airflow in the air cavity 307 is discharged through the air outlet 311, it exchanges heat with the liquid in the exchange tubes 310, realizing secondary heat collection and utilization. Water cooling: The cable enters the water cooling device 40 and passes through the inner tube 407 in the inner cavity of the water cooling shell 401. The spiral heat absorption tube 408 is connected to the outside of the inner tube 407, absorbing the heat of the cable through heat conduction and heating the circulating coolant inside. The heated coolant is transported to the heat dissipation water tank 402 through the connecting pipe 406 (see attached Figure 9 The cooling liquid in the heat dissipation water storage tank 402-1 of the heat dissipation water tank 402 is cooled by the heat dissipation integrated fan 402-2 and the heat dissipation fin plate on the right wall, and the cooled cooling liquid is transported to the spare water storage tank 403-1 of the spare water tank 403 for standby use; The check valve 404 between the heat dissipation water tank 402 and the spiral heat absorption tube 408 ensures the one-way flow of the coolant; the check valve 404-1 prevents the coolant from flowing back, and the suction pump 404-3 assists the coolant in flowing from the spiral heat absorption tube 408 to the heat dissipation water tank 402-1; The liquid pump at the top of the spare water tank 403-1 extracts the coolant in the heat dissipation water tank 402-1, and the pressurized liquid pump at the bottom pressurizes the coolant in the spare water tank 403-1 and pumps it to the spiral heat absorption pipe 408 (see attached diagram). Figure 9 The coolant flows in the direction indicated by the hollow arrow to achieve the circulation of the coolant and ensure continuous cooling effect; The transfer main pipes 410 and transfer valves 409 at the top and bottom of the spiral heat absorption tube 408 are connected to the heat dissipation water tank 402-1 and the backup water tank 403-1 via the connecting pipe 406. The transfer branch pipes 411 between the transfer main pipes 410 and the spiral heat absorption tube 408 enable simultaneous injection or output of coolant at multiple points, thus avoiding uneven temperature changes in the spiral heat absorption tube 408. The drainage cavity 412 of the transfer branch pipe 411 adopts a design that is narrow at both ends and wide in the middle, which reduces the fluid flow rate, turbulence and eddy currents, and reduces energy loss and impact on the tube wall, thereby improving the coolant transmission efficiency. Extended Cooling: The extension cooling pipe 405 has two cooling modes; the first mode is to inject cooling medium in the filling cavity 405-1, and the heat exchange is realized when the cable passes through, and the water jacket cooling cooling purpose is achieved by customizing the length of the extension cooling pipe 405; the second mode is to extend the spiral heat absorption pipe 408 to the right and sleeve on the inner container pipe 407, increase the contact range with the cable, and improve the heat exchange efficiency; the two modes can be switched as needed, and the adaptive length of the spiral heat absorption pipe 408 needs to be customized when switching; in the first mode, the injection and discharge of the cooling medium in the filling cavity 405-1 are controlled through the control valve 405-2 at the bottom and the rear side; System control: The control system is composed of a programmable logic controller PLC and detection sensors; The air pressure-temperature detection sensors on the side walls of the air passing cavity 306 and the air passing cavity 307 of the air cooling device 30 detect the air pressure and temperature in real time; the liquid level-water temperature detection sensors in the inner cavity of the heat dissipation exchange window 302 detect the water level and water temperature; The liquid level-water temperature detection sensors in the inner cavities of the spiral heat absorption pipe 408, the heat dissipation water tank 402 and the standby water tank 403 of the water cooling device 40 monitor the liquid level and temperature of the cooling liquid in real time; When the sensors detect that the temperature of each part increases to the preset value, the system reminds or actively completes the corresponding instruction action through the actuator connected with the control system, to ensure the normal operation and effective heat dissipation of the device.

[0019] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, and it is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or basic characteristics of the present application; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application, and any reference signs in the claims should not be regarded as limiting the involved claims.

[0020] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An extrusion molding device for cable production, characterized in that: The invention comprises an extruder (10) and a flaw detection-heat dissipation system, wherein the flaw detection-heat dissipation system comprises a flaw detection device (20), an air cooling device (30) and a water cooling device (40); an extrusion tube (101) is installed on the right side of the extruder (10); the flaw detection device (20) comprises a ray generator (201) and a protective shell (202); a glass tube is installed in the protective shell (202), and the glass tube is connected to the extrusion tube (101) to the left, and the extruded cable is transmitted to the right side through the extrusion tube (101) to the inside of the flaw detection device (20); The air cooling device (30) includes an air cooling device housing (301), a heat dissipation exchange window (302), a blower (303) and a circulation device (304). Two layers of inner lining tubes are provided in the inner cavity of the air cooling device housing (301). An air passage cavity (306) is reserved between the outer inner lining tube and the air cooling device housing (301), and a ventilation cavity (307) is reserved between the inner inner lining tube and the outer inner lining tube. The heat dissipation exchange window (302) is a water-cooled exchange window with a heat exchange function. The water cooling device (40) includes a water cooling shell (401), a circulating heat dissipation system and an extended cooling pipe (405), the circulating heat dissipation system includes a heat dissipation water tank (402), a spare water tank (403), a spiral heat absorption pipe (408) and a connecting pipe (406), and the circulating heat dissipation system is filled with circulating coolant, and the coolant is transmitted through the connecting pipe (406); A control system is provided in conjunction with the flaw detection and heat dissipation system. The control system includes a programmable logic controller (PLC) and detection sensors provided in the device. Air pressure-temperature detection sensors are installed on the side walls of the air passage cavity (306) and the ventilation cavity (307) of the air cooling device (30), and a liquid level-water temperature detection sensor is installed in the inner cavity of the heat dissipation exchange window (302). Liquid level-water temperature detection sensors are installed in the inner cavities of the spiral heat absorption tube (408), the heat dissipation water tank (402), and the spare water tank (403) of the water cooling device (40); the detection sensors detect temperature changes of various parts in real time, and when the temperature rises to a preset value, the actuator connected to the control system actively completes the command action.

2. The extrusion molding device for cable production according to claim 1, characterized in that: The surface of the inner lining tube is uniformly provided with mesh heat dissipation windows (308); the surface of the outer lining tube is uniformly provided with wide-open heat dissipation windows (309); the opening diameter of the wide-open heat dissipation windows (309) is 2-5 times the opening diameter of the mesh heat dissipation windows (308); the mesh heat dissipation windows (308) and the wide-open heat dissipation windows (309) are responsible for guiding the heat on the formed cable into the ventilation cavity (307) and the air passage cavity (306) for diffusion; Blowers (303) are symmetrically mounted on the right sides of the front and rear sides of the air cooling device housing (301); mounting grooves are provided at the positions where the air cooling device housing (301) and the blower (303) are connected, and rubber sealing rings are installed at the contact positions between the edges of the mounting grooves and the blower (303); a fixing frame is mounted below the blower (303), and a blower drive motor is mounted on the top of the fixing frame; a metal mesh (305) is mounted on the blower (303); The blower (303) blows air into the air passage cavity (306), forming a low-pressure area in the air passage cavity (306), while a high-pressure area is formed in the ventilation cavity (307) due to the hot air flow. Under the action of the pressure difference, the air in the high-pressure area is accelerated to flow into the low-pressure area, which accelerates the diffusion of the hot air in the ventilation cavity (307) into the air passage cavity (306), thereby accelerating the heat dissipation.

3. The extrusion molding device for cable production according to claim 2, characterized in that: Heat exchange windows (302) are symmetrically installed on the left sides of the front and rear sides of the air cooling device housing (301), and the heat exchange windows (302) are inwardly connected to the air cavity (306), and the hot air in the air cavity (306) is dissipated through the heat exchange windows (302); The inner cavity of the heat exchange window (302) is hollow, and a cooling medium is filled in the inner cavity of the heat exchange window (302); a circulation device (304) is installed below the heat exchange window (302); the circulation device (304) includes a water change adapter (304-1), a water injection pump (304-2) and a water pipe (304-3); the water change adapter (304-1) is installed at the bottom of the heat exchange window (302) and is in contact with the inner cavity of the heat exchange window (302). Two water pipes (304-3) are installed on the water-changing adapter (304-1), one for water inlet and the other for water outlet; the water pipe (304-3) for water inlet is connected to the water injection pump (304-2), and the water inlet of the water injection pump (304-2) is connected to the water supply source through the water pipe (304-3); the water outlet of the water-changing adapter (304-1) is transferred to the outside through the water pipe (304-3), and the heated water is transferred to the outside for secondary use; Exchange tubes (310) are evenly distributed on the heat dissipation exchange window (302). The exchange tubes (310) are made of aluminum alloy. Air outlets (311) are reserved between adjacent exchange tubes (310). When air flows through the exchange tubes (310), heat is exchanged with the liquid inside.

4. The extrusion molding device for cable production according to claim 1, characterized in that: An inner tube (407) is provided in the inner cavity of the water-cooling housing (401), and the formed cable passes through the inner cavity of the inner tube (407); the spiral heat absorption tube (408) is sleeved on the outer side of the inner tube (407) to perform heat exchange through heat conduction; The heat dissipation water tank (402) is installed on the top of the water-cooling housing (401); the heat dissipation water tank (402) comprises a heat dissipation water storage tank (402-1) and a heat dissipation integrated fan (402-2); the heat dissipation integrated fan (402-2) is installed on the right side wall of the heat dissipation water storage tank (402-1), and a fin plate is also installed between the heat dissipation integrated fan (402-2) and the heat dissipation water storage tank (402-1); A check device (404) is installed between the heat dissipation water tank (402) and the spiral heat absorption tube (408). The check device (404) comprises a check valve (404-1), a support base (404-2), and a suction pump (404-3). The support base (404-2) is installed at the bottom of the check valve (404-1). The suction pump (404-3) is installed between the check valve (404-1) and the heat dissipation water tank (402-1), and the two are connected to each other through a connecting pipe (406).

5. The extrusion molding device for cable production according to claim 4, characterized in that: The standby water tank (403) is installed on the front side of the water-cooling housing (401); the standby water tank (403) comprises a standby water storage tank (403-1) and a heat dissipation fin plate (403-2); the heat dissipation fin plate (403-2) is installed on the front side of the standby water storage tank (403-1) to increase the heat dissipation efficiency of the surface of the standby water storage tank (403-1); a liquid pump is installed on the top of the standby water storage tank (403-1), and the liquid pump is connected to the heat dissipation water storage tank (402-1) via a connecting pipe (406); the liquid pump is responsible for extracting the cooling liquid in the heat dissipation water storage tank (402-1); A pressurized liquid pump is installed at the bottom of the standby water tank (403-1). The pressurized liquid pump is connected to the spiral heat absorption tube (408) through a connecting pipe (406). The pressurized liquid pump is responsible for pressurizing the coolant in the standby water tank (403-1) and pumping it to the spiral heat absorption tube (408).

6. The extrusion molding device for cable production according to claim 5, characterized in that: The top and bottom of the spiral heat absorbing tube (408) are both provided with a switching main pipe (410), and a switching valve (409) is provided on the side of the switching main pipe (410) away from the spiral heat absorbing tube (408). The switching valve (409) is connected to the heat dissipation water storage tank (402-1) and the spare water storage tank (403-1) via a connecting pipe (406); A plurality of transfer branch pipes (411) are distributed between the transfer main pipe (410) and the spiral heat absorbing pipe (408), and the transfer branch pipes (411) are connected to the spiral heat absorbing pipe (408) at different positions, thereby realizing simultaneous injection or output at multiple points of the spiral heat absorbing pipe (408); Each of the transfer branch pipes (411) is provided with a drainage cavity (412), the drainage cavity (412) and the spiral heat absorption tube (408) are communicated with each other, and a one-way valve is installed at the position where each drainage cavity (412) contacts the spiral heat absorption tube (408); the drainage cavity (412) is designed to be narrow at both ends and wide in the middle.

7. The extrusion molding device for cable production according to claim 1, characterized in that: An inner tube (407) is also provided in the inner cavity of the extended cooling tube (405), and a filling cavity (405-1) is reserved between the extended cooling tube (405) and the inner tube (407); a control valve (405-2) is respectively installed at the bottom and rear side of the extended cooling tube (405), responsible for injecting and discharging the cooling medium in the filling cavity (405-1); a discharge port (50) is provided on the right side of the extended cooling tube (405); A cooling medium is injected into the filling cavity (405-1), and heat exchange can be achieved when the formed cable passes through. The length of the extended cooling pipe (405) can be customized as needed. By extending the length of the extended cooling pipe (405), the purpose of cooling the water jacket is achieved, and the temperature of the formed cable is effectively lowered in an orderly manner in conjunction with the device on the left.

8. The extrusion molding device for cable production according to claim 4, characterized in that: The spiral heat absorbing tube (408) is responsible for absorbing heat and then transporting the coolant to the heat dissipation water tank (402). The heat dissipation water tank (402) is responsible for cooling the heated coolant, and the cooled coolant is transported to the spare water tank (403) for standby use. When the coolant in the spiral heat absorbing tube (408) is transported out, new low-temperature coolant is immediately injected from the spare water tank (403) to realize the reciprocating cooling process. The three storage containers can realize the continuous cooling operation.

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