Water cooling liquid circulating mechanism for pipe turning equipment

Abstract

The utility model discloses a kind of water cooling liquid circulation mechanisms for pipe turning equipment, it is related to machining cooling technical field, including coolant storage tank, delivery pump and temperature regulating device, further including the shunt pipe being communicated with the delivery pump export;The end of the shunt pipe is equipped with multiple nozzles, and each nozzle is connected with shunt pipe by independent flow regulating valve;The valve core of the flow regulating valve is driven by stepper motor, and stepper motor receives signal from controller to adjust valve core opening degree;The liquid outlet direction of the nozzle is towards the working area of turning tool.The utility model provides a kind of water cooling liquid circulation mechanisms for pipe turning equipment, by flow regulating valve and stepper motor, and stepper motor adjusts valve core opening degree according to the signal of controller, to realize the accurate control of coolant flow;This design is suitable for the cooling demand under different working conditions, avoids the fluctuation of cooling effect due to unstable flow.

Description

Technical Field

[0001] This utility model relates to the field of mechanical processing cooling technology, specifically to a water-cooled liquid circulation mechanism for pipe turning equipment. Background Technology

[0002] With the development of pipe turning technology, the application of coolant in the turning process has become an important aspect of ensuring machining accuracy and extending tool life. However, in the existing technology, there are still some areas for improvement in the recycling of water coolant, especially in terms of coolant flow control, temperature regulation, and circulation efficiency, which cannot yet fully meet the needs of modern high-efficiency and intelligent machining.

[0003] A search revealed a patent (CN116422917B) for a turning device for pipe fittings. This invention utilizes a cleverly designed mechanical structure to indirectly supply coolant through the movement steps during the turning process, eliminating the need for a dedicated cooling system and effectively reducing manufacturing costs. However, this coolant supply method relies on mechanical linkage and lacks dynamic adjustment capabilities during actual processing, potentially leading to fluctuations in cooling effectiveness under different operating conditions. Furthermore, the lack of an active mechanism for controlling coolant temperature may affect the thermal stability of the tool and workpiece during turning, thereby impacting machining quality to some extent.

[0004] Another related patent, CN118848030B, discloses a turbocharger turbine shaft turning device and its turning method. This device integrates a cutting fluid storage tank and has cooling, purification, and reuse functions, improving stability during clamping and machining while reducing cutting fluid consumption. However, this solution is primarily designed for specific components (such as turbine shafts), and its coolant circulation system has limited versatility. Furthermore, while the solution possesses some purification capabilities, it lacks intelligent adjustment of coolant flow or pressure compensation mechanisms. Therefore, its adaptability and flexibility have room for further optimization when facing complex and varied pipe turning tasks.

[0005] In summary, while some existing turning equipment has attempted to incorporate coolant circulation mechanisms, there is still room for improvement in flow regulation, temperature control, and system intelligence. These limitations make it difficult to fully meet the comprehensive demands of current industrial production for high precision, high efficiency, energy conservation, and environmental protection. Therefore, this invention proposes a water-cooled fluid circulation mechanism suitable for various pipe turning scenarios, aiming to solve the aforementioned problems and provide a more stable, controllable, and energy-efficient cooling solution. Utility Model Content

[0006] This utility model provides a water-cooled liquid circulation mechanism for pipe turning equipment, aiming to solve the problems of insufficient coolant flow regulation, temperature control, and system intelligence in the existing technology. The specific solution is as follows:

[0007] A water-cooled fluid circulation mechanism for pipe turning equipment includes a coolant storage tank, a delivery pump, and a temperature regulating device. It also includes a distribution pipe connected to the outlet of the delivery pump. Multiple nozzles are provided at the end of the distribution pipe, and each nozzle is connected to the distribution pipe via an independent flow regulating valve. The valve core of the flow regulating valve is driven by a stepper motor, which receives signals from a controller to adjust the valve core opening. The nozzles discharge fluid towards the working area of ​​the turning tool. The arrangement of the multiple nozzles can be adjusted according to the shape of the turning tool and the machining requirements.

[0008] As a preferred embodiment of the water coolant circulation mechanism of the pipe turning equipment of this utility model, the coolant storage tank is provided with a partition, which divides the storage tank into upper and lower parts, the upper part being a purification zone and the lower part being a sedimentation zone; the partition is provided with multiple filter holes, and filter screens are embedded in the filter holes; the pore size of the filter screens gradually decreases from top to bottom to achieve a multi-stage filtration effect; the coolant needs to pass through the purification zone for filtration treatment before entering the delivery pump.

[0009] As a preferred embodiment of the water coolant circulation mechanism of the pipe turning equipment of this utility model, the temperature regulating device includes a heat exchanger and a temperature sensor; the inlet of the heat exchanger is connected to the return end of the distribution pipe, and the outlet is connected to the inlet of the coolant storage tank; the temperature sensor is installed at the return end of the distribution pipe for real-time monitoring of the coolant temperature; the temperature sensor transmits the detected data to the controller, and the controller adjusts the working power of the heat exchanger according to the preset temperature range.

[0010] As a preferred embodiment of the water coolant circulation mechanism of the pipe turning equipment of this utility model, the outer wall of the distribution pipe is provided with a pressure sensor, which is used to monitor the coolant pressure in the distribution pipe; when the pressure is lower than the set value, the controller starts the delivery pump to increase the coolant flow rate; when the pressure is higher than the set value, the controller reduces the speed of the delivery pump or shuts down the delivery pump.

[0011] As a preferred embodiment of the water coolant circulation mechanism of the pipe turning equipment of this utility model, the nozzle is provided with a rotatable guide vane, which is driven by a micro motor; the micro motor receives a signal from the controller to adjust the angle of the guide vane; the rotation angle of the guide vane determines the spray direction and coverage of the coolant.

[0012] As a preferred embodiment of the water coolant circulation mechanism of the pipe turning equipment of this utility model, the top of the coolant storage tank is provided with a replenishment port, which is connected to an external coolant source through a solenoid valve; the solenoid valve is controlled by a controller, and when the liquid level in the coolant storage tank is lower than the set value, the controller opens the solenoid valve to replenish the coolant.

[0013] As a preferred embodiment of the water coolant circulation mechanism of the pipe turning equipment of this utility model, the return end of the distribution pipe is provided with a magnetic adsorption device, which includes a magnetic rod and a scraper; the magnetic rod is fixed to the inner wall of the distribution pipe, and the scraper is connected to one side of the magnetic rod by a spring; when the coolant flows through the magnetic adsorption device, metal particles are adsorbed on the surface of the magnetic rod, and the scraper periodically cleans the metal particles on the magnetic rod under the action of the spring.

[0014] As a preferred embodiment of the water coolant circulation mechanism of the pipe turning equipment of this utility model, the bottom of the coolant storage tank is provided with a slag discharge port, which is controlled by a manual valve; the slag discharge port is located at the lowest point of the sedimentation zone and is used to periodically discharge sediment.

[0015] As a preferred embodiment of the water coolant circulation mechanism of the pipe turning equipment of this utility model, the controller integrates a wireless communication module, which is used to connect with an external monitoring system; the external monitoring system can remotely obtain the temperature, pressure and flow data of the coolant through the wireless communication module, and send control commands to adjust the working state of the coolant circulation mechanism.

[0016] As a preferred embodiment of the water cooling fluid circulation mechanism of the pipe turning equipment of this utility model, the outer wall of the distribution pipe is wrapped with a heat insulation layer, which is made of heat insulation material; the thickness of the heat insulation layer is designed according to the length of the distribution pipe and the temperature difference of the coolant, so as to reduce the heat loss of the coolant during the transportation process.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0018] This device uses a flow regulating valve and a stepper motor. The stepper motor adjusts the valve core opening according to the controller signal, thereby achieving precise control of the coolant flow. This design is suitable for cooling needs under different operating conditions and avoids fluctuations in cooling effect caused by unstable flow.

[0019] This device uses a temperature regulation mechanism, where the heat exchanger adjusts its operating power based on the detection data from the temperature sensor, thereby achieving active control of the coolant temperature. This design can effectively maintain the thermal stability of the tool and workpiece during turning, improving machining quality.

[0020] The device uses a magnetic adsorption mechanism, where a magnetic rod attracts metal particles from the coolant, and a scraper periodically cleans the metal particles from the surface of the magnetic rod. This design can extend the service life of the coolant while reducing wear on the turning equipment caused by metal particles.

[0021] The device uses guide vanes inside the nozzle, whose angle is adjusted by a micro motor, to change the direction and coverage of the coolant spray. This design allows for flexible adjustment of the coolant distribution according to the shape of the turning tool and machining requirements, thereby improving cooling efficiency.

[0022] The device uses partitions in the coolant storage tank and multi-stage filters to ensure that the coolant undergoes multiple filtration processes before entering the delivery pump. This design effectively removes impurities from the coolant, ensuring its purity and extending the service life of the delivery pump.

[0023] The device uses a controller and a wireless communication module, allowing an external monitoring system to remotely acquire relevant data about the coolant and send control commands. This design enhances the intelligence level of the coolant circulation mechanism, facilitating remote monitoring and management. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the coolant storage tank;

[0027] Figure 3 This is a schematic diagram of the structure of the shunt pipe and its auxiliary components;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the nozzle;

[0029] Figure 5 This is a schematic diagram showing the connection between the controller and the external monitoring system.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Coolant storage tank; 2. Transfer pump; 3. Diverter pipe; 4. Nozzle; 5. Flow regulating valve; 6. Stepper motor; 7. Baffle plate; 8. Filter screen; 9. Purification zone; 10. Sedimentation zone; 11. Heat exchanger; 12. Temperature sensor; 13. Pressure sensor; 14. Guide vane; 15. Micro motor; 16. Liquid replenishment port; 17. Solenoid valve; 18. Magnetic rod; 19. Scraper; 20. Spring; 21. Slag discharge port; 22. Manual valve; 23. Insulation layer; 24. Controller; 25. Wireless communication module; 26. External monitoring system. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0033] like Figures 1 to 5 The present invention provides a water coolant circulation mechanism for pipe turning equipment, including a coolant storage tank 1, a delivery pump 2, a distribution pipe 3, a nozzle 4, a flow regulating valve 5, a stepper motor 6, a partition 7, a filter screen 8, a heat exchanger 11, a temperature sensor 12, a pressure sensor 13, a guide vane 14, a micro motor 15, a replenishment port 16, a solenoid valve 17, a magnetic rod 18, a scraper 19, a spring 20, a slag discharge port 21, a manual valve 22, an insulation layer 23, a controller 24, a wireless communication module 25, and an external monitoring system 26. The interior of the coolant storage tank 1 is divided into upper and lower sections by a partition 7. The upper section is a purification zone 9, and the lower section is a sedimentation zone 10. Multiple filter holes are provided on the partition 7, and filter screens 8 are embedded in the filter holes. The pore size of the filter screens 8 gradually decreases from top to bottom to achieve a multi-stage filtration effect. The inlet of the delivery pump 2 is connected to the purification zone 9 of the coolant storage tank 1, and the outlet is connected to one end of the diversion pipe 3. The other end of the diversion pipe 3 is equipped with multiple nozzles 4. Each nozzle 4 is connected to the diversion pipe 3 via an independent flow regulating valve 5. The valve core of the flow regulating valve 5 is driven by a stepper motor 6, which is electrically connected to the controller 24. The stepper motor 6 receives signals from the controller 24 to adjust the valve core opening, thereby controlling the coolant flow rate. The outlet direction of the nozzle 4 is towards the working area of ​​the turning tool. The nozzle 4 has a rotatable guide vane 14 inside. The guide vane 14 is driven by a micro motor 15, which is electrically connected to the controller 24. The micro motor 15 receives signals from the controller 24 to adjust the angle of the guide vane 14, changing the spray direction and coverage area of ​​the coolant.

[0034] A pressure sensor 13 is installed on the outer wall of the manifold 3. The pressure sensor 13 monitors the coolant pressure in the manifold 3 and transmits the detection data to the controller 24. When the pressure is lower than the set value, the controller 24 starts the delivery pump 2 to increase the coolant flow rate. When the pressure is higher than the set value, the controller 24 reduces the speed of the delivery pump 2 or shuts it off. The return end of the manifold 3 is connected to the inlet of the heat exchanger 11, and the outlet of the heat exchanger 11 is connected to the inlet of the coolant storage tank 1. A temperature sensor 12 is installed at the return end of the manifold 3 to monitor the coolant temperature in real time. The temperature sensor 12 transmits the detection data to the controller 24. The controller 24 adjusts the operating power of the heat exchanger 11 according to the preset temperature range to maintain a stable coolant temperature. The return end of the diversion pipe 3 is also equipped with a magnetic adsorption device. The magnetic adsorption device includes a magnetic rod 18 and a scraper 19. The magnetic rod 18 is fixed to the inner wall of the diversion pipe 3. The scraper 19 is connected to one side of the magnetic rod 18 by a spring 20. When the coolant flows through the magnetic adsorption device, metal particles are adsorbed on the surface of the magnetic rod 18. The scraper 19 cleans the metal particles on the magnetic rod 18 periodically under the action of the spring 20.

[0035] The top of the coolant storage tank 1 is equipped with a replenishment port 16. The replenishment port 16 is connected to an external coolant source via a solenoid valve 17. The solenoid valve 17 is controlled by a controller 24. When the coolant level in the storage tank 1 is lower than a set value, the controller 24 opens the solenoid valve 17 to replenish coolant. The bottom of the coolant storage tank 1 is equipped with a slag discharge port 21. The slag discharge port 21 is controlled by a manual valve 22. Its position is located at the lowest point of the sedimentation zone 10 for periodic discharge of sediment. The outer wall of the distribution pipe 3 is wrapped with an insulation layer 23. The insulation layer 23 is made of heat-insulating material, and its thickness is designed according to the length of the distribution pipe 3 and the temperature difference of the coolant to reduce heat loss of the coolant during transportation. The controller 24 integrates a wireless communication module 25. The wireless communication module 25 is used to connect with an external monitoring system 26. The external monitoring system 26 can remotely acquire coolant temperature, pressure, and flow data through the wireless communication module 25 and send control commands to adjust the working status of the coolant circulation mechanism.

[0036] In actual operation, the coolant in the coolant storage tank 1 undergoes multi-stage filtration through the filter screen 8 on the baffle 7 before entering the purification zone 9. It is then pumped by the delivery pump 2 and delivered to the distribution pipe 3. The coolant in the distribution pipe 3 is distributed to each nozzle 4 via the flow regulating valve 5. The opening of the flow regulating valve 5 is adjusted by the stepper motor 6 according to the instructions of the controller 24 to meet the cooling requirements under different operating conditions. The guide vanes 14 inside the nozzle 4 are adjusted by the micro motor 15 to change the spray direction and coverage of the coolant, enabling it to accurately cover the working area of ​​the turning tool. The pressure sensor 13 on the outer wall of the distribution pipe 3 monitors the coolant pressure in real time and transmits the data to the controller 24. The controller 24 adjusts the speed or start / stop status of the delivery pump 2 according to the pressure changes to maintain stable coolant pressure. The temperature sensor 12 at the return end of the distribution pipe 3 monitors the coolant temperature in real time and transmits the data to the controller 24. The controller 24 adjusts the operating power of the heat exchanger 11 according to the temperature changes to maintain stable coolant temperature. The magnetic adsorption device at the return end of the distributor 3 uses a magnetic rod 18 to adsorb metal particles in the coolant. A scraper 19, under the action of a spring 20, periodically cleans the metal particles from the surface of the magnetic rod 18 to prevent damage to the coolant circulation system. The coolant level in the coolant storage tank 1 is monitored by the controller 24. When the level is lower than the set value, the controller 24 opens the solenoid valve 17 to replenish coolant through the replenishment port 16. The sludge discharge port 21 at the bottom of the coolant storage tank 1 is controlled by a manual valve 22 to periodically discharge sediment from the sedimentation zone 10 to maintain the cleanliness of the coolant. The insulation layer 23 on the outer wall of the distributor 3 effectively reduces heat loss during coolant transport, ensuring stable coolant temperature. The controller 24 connects to an external monitoring system 26 via a wireless communication module 25. The external monitoring system 26 can remotely acquire coolant temperature, pressure, and flow data and send control commands to adjust the working status of the coolant circulation mechanism, achieving remote monitoring and management.

[0037] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0038] In actual operation, coolant is first injected into the coolant storage tank 1 through the replenishment port 16. The interior of the coolant storage tank 1 is divided into upper and lower parts by a partition 7: the upper part is the purification zone 9, and the lower part is the sedimentation zone 10. A filter screen 8 is embedded in the partition 7, with the pore size gradually decreasing from top to bottom to achieve a multi-stage filtration effect. When the coolant enters the storage tank, larger impurities are blocked in the sedimentation zone 10, while smaller particles are filtered step by step and enter the purification zone 9. This design ensures that the coolant has a high purity before entering the delivery pump 2, thereby reducing the risk of subsequent system blockage.

[0039] Subsequently, the controller 24 starts the delivery pump 2, drawing coolant from the purification zone 9 and delivering it to the nozzle 4 through the diversion pipe 3. The outer wall of the diversion pipe 3 is wrapped with an insulation layer 23, which is made of heat-insulating material. The thickness of the insulation layer 23 is designed according to the length of the diversion pipe 3 and the temperature difference of the coolant, effectively reducing heat loss of the coolant during delivery. At the same time, a pressure sensor 13 is installed on the outer wall of the diversion pipe 3. The pressure sensor 13 monitors the pressure of the coolant in real time and transmits the data to the controller 24. When the detected pressure is lower than the set value, the controller 24 increases the speed of the delivery pump 2 to increase the flow rate; when the pressure is higher than the set value, the controller 24 decreases the speed of the delivery pump 2 or shuts down the delivery pump 2, thereby maintaining the stability of the coolant pressure.

[0040] Coolant is distributed to multiple nozzles 4 via a distributor pipe 3, and each nozzle 4 is connected to the distributor pipe 3 via an independent flow regulating valve 5. The valve core of the flow regulating valve 5 is driven by a stepper motor 6, which receives signals from the controller 24 to adjust the valve core opening, thereby precisely controlling the coolant flow rate. This design allows the coolant flow rate to be dynamically adjusted according to different operating conditions, avoiding fluctuations in cooling effect caused by insufficient or excessive flow. Furthermore, each nozzle 4 has a rotatable guide vane 14 inside, driven by a micro motor 15. The micro motor 15 receives signals from the controller 24 to adjust the angle of the guide vane 14. By changing the angle of the guide vane 14, the spray direction and coverage area of ​​the coolant can be flexibly adjusted, thereby precisely covering the working area of ​​the turning tool. This design not only improves cooling efficiency but also adapts to the machining needs of pipes of different shapes and sizes.

[0041] The return end of the manifold 3 is equipped with a temperature sensor 12 and a heat exchanger 11. The temperature sensor 12 monitors the coolant temperature in real time and transmits the data to the controller 24. When the coolant temperature exceeds the preset range, the controller 24 adjusts the operating power of the heat exchanger 11 to maintain a stable coolant temperature. This active control mechanism effectively ensures the thermal stability of the tool and workpiece during turning, thereby improving machining quality. Furthermore, the return end of the manifold 3 is also equipped with a magnetic adsorption device, which includes a magnetic rod 18 and a scraper 19. When the coolant flows through the magnetic adsorption device, metal particles are adsorbed onto the surface of the magnetic rod 18. The scraper 19, under the action of a spring 20, periodically cleans the metal particles from the magnetic rod 18. This design effectively removes metal impurities from the coolant, extends the coolant's service life, and reduces damage to the coolant circulation system caused by metal particles.

[0042] During coolant circulation, the controller 24 connects to an external monitoring system 26 via a wireless communication module 25. The external monitoring system 26 can acquire real-time data on coolant temperature, pressure, and flow rate, and send control commands to adjust the operating status of the coolant circulation mechanism. For example, when the external monitoring system 26 detects an abnormal pressure in a certain branch pipe 3, it can send a command to the controller 24 via the wireless communication module 25. The controller 24 then adjusts the speed of the delivery pump 2 or closes the relevant flow regulating valve 5 to restore normal operation. This remote monitoring and management function significantly improves the intelligence level of the coolant circulation mechanism.

[0043] Finally, a sludge discharge port 21 is provided at the bottom of the coolant storage tank 1, which is controlled by a manual valve 22. Operators can periodically open the manual valve 22 to drain the sediment in the sedimentation zone 10, thus maintaining the cleanliness of the coolant. Simultaneously, a replenishment port 16 is provided at the top of the coolant storage tank 1. When the coolant level is lower than the set value, the controller 24 opens the solenoid valve 17, replenishing coolant from an external coolant source through the replenishment port 16, thereby ensuring a continuous supply of coolant.

[0044] By combining the above steps and principles, the water-cooled liquid circulation mechanism of this utility model can achieve precise control of coolant flow, active temperature regulation, and efficient operation of the coolant circulation system in practical applications, thereby meeting the needs of modern high-efficiency and intelligent processing.

[0045] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A water-cooled fluid circulation mechanism for pipe turning equipment, comprising a coolant storage tank (1), a delivery pump (2), and a temperature regulating device, characterized in that: It also includes a diversion pipe (3) connected to the outlet of the delivery pump (2); the end of the diversion pipe (3) is provided with multiple nozzles (4), each nozzle (4) is connected to the diversion pipe (3) through an independent flow regulating valve (5); the valve core of the flow regulating valve (5) is driven by a stepper motor (6), the stepper motor (6) receives a signal from the controller (24) to adjust the valve core opening; the liquid outlet direction of the nozzle (4) is towards the working area of ​​the turning tool; the arrangement position of the multiple nozzles (4) is adjustable.

2. The water-cooled liquid circulation mechanism for pipe turning equipment according to claim 1, characterized in that, The coolant storage tank (1) is provided with a partition (7) inside, which divides the coolant storage tank (1) into two parts, the upper part being the purification zone (9) and the lower part being the sedimentation zone (10); the partition (7) is provided with multiple filter holes, and filter screens (8) are embedded in the filter holes; the pore size of the filter screens (8) gradually decreases from top to bottom.

3. The water-cooled liquid circulation mechanism for pipe turning equipment according to claim 1, characterized in that, The temperature regulating device includes a heat exchanger (11) and a temperature sensor (12); the inlet of the heat exchanger (11) is connected to the return end of the diverter (3), and the outlet is connected to the inlet of the coolant storage tank (1); the temperature sensor (12) is installed at the return end of the diverter (3) and electrically connected to the controller (24).

4. The water-cooled liquid circulation mechanism for pipe turning equipment according to claim 1, characterized in that, The outer wall of the diversion pipe (3) is provided with a pressure sensor (13), which is electrically connected to the controller (24). The controller (24) adjusts the speed or start / stop status of the delivery pump (2) according to the detection data of the pressure sensor (13).

5. The water-cooled liquid circulation mechanism for pipe turning equipment according to claim 1, characterized in that, The nozzle (4) is equipped with a guide vane (14) inside, which is driven by a micro motor (15); the micro motor (15) receives a signal from the controller (24) to adjust the angle of the guide vane (14).

6. The water-cooled liquid circulation mechanism for pipe turning equipment according to claim 1, characterized in that, The top of the coolant storage tank (1) is provided with a liquid replenishment port (16), which is connected to an external coolant source through a solenoid valve (17); the solenoid valve (17) is controlled by a controller (24).

7. The water-cooled liquid circulation mechanism for pipe turning equipment according to claim 1, characterized in that, The return end of the diversion pipe (3) is provided with a magnetic adsorption device, which includes a magnetic rod (18) and a scraper (19); the magnetic rod (18) is fixed to the inner wall of the diversion pipe (3), and the scraper (19) is connected to one side of the magnetic rod (18) by a spring (20).

8. The water-cooled liquid circulation mechanism for pipe turning equipment according to claim 1, characterized in that, The outer wall of the diversion pipe (3) is wrapped with a heat insulation layer (23), which is made of heat insulation material.

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