A cooling and shaping device for steel skeleton composite pipe

Abstract

The utility model belongs to the steel skeleton composite pipe production technical field discloses a kind of cooling and shaping device for steel skeleton composite pipe, including frame body, several supporting rollers are equipped on frame body and are sequentially equipped with annular precooling pipe, water cooling sleeve, negative pressure shaping sleeve and air cooling ring pipe, several water mist sprays are equipped on annular precooling pipe and are connected with precooling water supply component;Several water cooling heads are connected in water cooling sleeve inner wall, retractable connecting pieces are equipped between water cooling sleeve and each water cooling head, water cooling circulating assembly connected with several water cooling heads is equipped on frame body;Several retractable negative pressure suction heads are equipped in negative pressure shaping sleeve inner wall and are connected with vacuum pumping assembly, driving assembly that can drive water cooling sleeve and negative pressure shaping sleeve rotation is equipped on frame body;Several air outlets are opened in air cooling ring pipe and are connected with air cooling component.The utility model has following advantages and effects: grading cooling is carried out, pipe material is shaped, pipe material roundness deviation is reduced, and pipe material precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of steel-reinforced composite pipe production technology, and in particular to a cooling and shaping device for steel-reinforced composite pipes. Background Technology

[0002] Steel-reinforced composite pipe is a new type of pipe material that uses a mesh skeleton formed by left and right spiral winding of high-strength steel wire as reinforcement, high-density polyethylene as matrix, and high-performance high-density polyethylene modified bonding resin to tightly connect the steel wire skeleton with the inner and outer layers of high-density polyethylene. It has the advantages of good creep resistance, high long-term mechanical strength, corrosion resistance, no scaling, smooth and low resistance, heat insulation without waxing, wear resistance, and light weight. It is widely used in municipal engineering, chemical engineering, marine engineering and shipbuilding engineering.

[0003] The production process of steel-reinforced composite pipes includes raw material preparation, steel wire weaving, surface treatment, inner layer extrusion, cooling and shaping, outer layer extrusion, cutting, and acceptance. For example, Chinese utility model patent with authorization announcement number CN 222372268U discloses a high-efficiency cooling device for continuous production of composite pipes, including a base plate. A baffle, a pulley seat, an air-cooled box, and a water-cooled box are fixedly installed on the top surface of the base plate. A hydraulic cylinder is fixedly installed on the top surface of the baffle, and an upper pulley seat is fixedly installed on the output shaft of the hydraulic cylinder. A fan is fixedly installed on the inner top surface of the air-cooled box, and a scraper is fixedly installed inside the water-cooled box. A water leakage hole is opened through the top surface of the base plate, and a funnel is fixedly installed on the bottom surface of the base plate. A collection bucket is set directly below the funnel. The technical solution in this patent does not have a shaping process for the pipe. After cooling, the composite pipe will shrink, resulting in a large deviation in the roundness of the pipe and low precision of the produced pipe, thereby reducing the yield of steel-reinforced composite pipes. Utility Model Content

[0004] The purpose of this invention is to provide a cooling and shaping device for steel-reinforced composite pipes, which can reduce the roundness deviation of the pipes and improve the pipe precision.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A cooling and shaping device for steel-reinforced composite pipes includes a frame. Several rollers are spaced apart on the frame in the pipe's traveling direction, and an annular pre-cooling pipe, a water-cooling sleeve, a negative pressure shaping sleeve, and an air-cooling annular pipe are sequentially arranged for the pipe to pass through. The annular pre-cooling pipe is equipped with several water mist nozzles, which are evenly spaced around the inner wall of the annular pre-cooling pipe and extend towards the outer periphery of the pipe. The annular pre-cooling pipe is connected to a pre-cooling water supply assembly. Several water-cooling heads connected to the outer side of the pipe are connected to the inner wall of the water-cooling sleeve, and these water-cooling heads are evenly spaced around the inner wall of the water-cooling sleeve. A space is provided between the water-cooling sleeve and the water-cooling heads. The device includes a retractable connector and a water-cooling circulation assembly connected to several water-cooling heads on the frame. The negative pressure shaping sleeve has an annular cavity and several retractable negative pressure suction heads on its inner wall. The annular cavity is connected to these suction heads, which are evenly spaced around the inner wall of the sleeve and have gaps between them and the outer surface of the tube. The negative pressure shaping sleeve is connected to a vacuum assembly. Both the water-cooling sleeve and the negative pressure shaping sleeve are rotatably connected to the frame. The frame is equipped with a drive assembly capable of simultaneously driving the water-cooling sleeve and the negative pressure shaping sleeve to rotate in both directions. The inner wall of the air-cooled ring pipe has several air outlets, and the air-cooled ring pipe is connected to an air-cooling assembly for providing cooling air.

[0006] By adopting the above technical solution, the pipes requiring cooling and shaping enter the frame, where several rollers provide support. The pipes first pass through an annular pre-cooling pipe, which works in conjunction with a pre-cooling water supply assembly. Several water mist nozzles on the annular pre-cooling pipe spray water mist onto the outer surface of the pipe, providing initial cooling. Next, the pipes pass through a water-cooling sleeve, where a water-cooling circulation assembly and several water-cooling heads further cool the pipes. Then, the pipes enter a negative pressure shaping sleeve, which works in conjunction with a vacuum assembly. Several negative pressure suction heads adhere to the outer circumference of the pipes, eliminating deformation caused by plastic shrinkage and steel frame springback, resulting in a tight bond between the plastic and the steel frame. Upon contact, heat from the steel frame can be quickly transferred to the plastic layer, improving cooling efficiency. Finally, the pipe passes through the air-cooled ring pipe, where the air-cooling components guide cooling air into the ring pipe through several air outlets for final cooling. Since the water-cooled sleeve and several water-cooling heads are connected by retractable connectors, and several negative pressure suction heads on the negative pressure shaping sleeve are retractable, this device is suitable for cooling and shaping pipes of different diameters. Throughout the process, the drive components drive the water-cooled sleeve and the negative pressure shaping sleeve to rotate in both directions, improving the uniformity of cooling and shaping. The entire process involves graded cooling of the pipe and the use of negative pressure for shaping, reducing pipe roundness deviation and improving pipe accuracy.

[0007] A further feature of this invention is that the water cooling head has an arc-shaped surface that contacts the outer circumferential surface of the pipe, the water cooling head has a water cooling cavity, the water cooling cavity has a guide groove on the cavity wall near the arc-shaped surface, the guide groove extends axially along the water cooling sleeve, and the water cooling circulation assembly includes several inlet pipes and outlet pipes that are connected to the water cooling cavities of the corresponding water cooling heads. The inlet pipes and outlet pipes connected to the water cooling head are respectively connected to both ends of the guide groove on the water cooling cavity in the water cooling head.

[0008] By adopting the above technical solution, the water in the water-cooling cavity is designed to flow through the guide channel, allowing the water introduced into the water-cooling cavity by the inlet pipe to flow within the guide channel. This results in the relatively uniform removal of heat from the steel frame, preventing pipe deformation, reducing pipe roundness deviation, and improving pipe precision.

[0009] A further feature of this invention is that the water-cooled circulation assembly includes a cold water tank and a centrifugal pump for pumping cold water out of the cold water tank. A guide pipe is installed at the outlet of the centrifugal pump, and a branch pipe connector is installed at the end of the guide pipe away from the centrifugal pump. The ends of several water inlets away from the corresponding water cooling heads are connected to the guide pipe through the branch pipe connector.

[0010] By adopting the above technical solution, a centrifugal pump is used to pump the cold water out of the cold water tank, and the cold water enters several inlet pipes through the guide pipe and the branch pipe joint. The cold water can enter several inlet pipes evenly through the guide pipe and the branch pipe joint, which provides a strong condition for uniform cooling of the pipes.

[0011] A further feature of this invention is that the negative pressure suction head is provided with a conduit and a sleeve extending radially along the negative pressure shaping sleeve. The conduit is inserted into one end of the sleeve and the two are sealed together. The other end of the sleeve is fixed to the inner wall of the negative pressure shaping sleeve and communicates with the annular cavity. A telescopic member is provided between the conduit and the sleeve. The housing of the telescopic member is fixed to the outer surface of the sleeve. The telescopic rod of the telescopic member extends along the length direction of the conduit and the end of the telescopic rod is fixed to the outer surface of the conduit.

[0012] By adopting the above technical solution, the position of the negative pressure suction head inside the negative pressure shaping sleeve is adjusted by using the telescopic component, so that the device can be used for shaping pipes of different diameters, thus improving the practicality of the device.

[0013] A further feature of this invention is that the vacuum assembly includes a vacuum pump, a condenser, a first air pipe for connecting the vacuum pump and the condenser, and a second air pipe for connecting the condenser and the negative pressure shaping sleeve, wherein the second air pipe communicates with the annular cavity inside the negative pressure shaping sleeve.

[0014] By adopting the above technical solution, the condenser can remove the moisture from the outside of the pipe sucked in by the negative pressure suction head on the negative pressure shaping sleeve, thus preventing this moisture from entering the vacuum pump and damaging it.

[0015] A further configuration of this utility model is as follows: the drive assembly includes a reversible motor, a rotating shaft extending axially along the water-cooled sleeve, a first vertical gear and a second vertical gear spaced apart on the rotating shaft, a gear ring 1 that meshes with the first vertical gear fixed on the outer periphery of the water-cooled sleeve, a gear ring 2 that meshes with the second vertical gear fixed on the outer periphery of the negative pressure shaping sleeve, the rotating shaft being rotatably mounted on the frame, the housing of the reversible motor being fixed on the frame, and the output shaft end of the reversible motor being fixedly connected to one end of the rotating shaft.

[0016] By adopting the above technical solution, the forward and reverse motors work, causing the rotating shaft to drive the vertical gear one and vertical gear two to rotate reciprocally, thereby driving the water-cooled sleeve and the negative pressure shaping sleeve to rotate simultaneously to achieve water cooling and shaping. Here, only one forward and reverse motor is needed to provide power for the two processes, reducing energy consumption.

[0017] A further feature of this invention is that a protective cover for covering the gear ring is provided on the outer circumferential surface of the water-cooled sleeve, and an elongated hole is provided on the protective cover for the vertical gear to extend into.

[0018] By adopting the above technical solution, the protective cover is used to protect the gear ring 1, prevent water from falling onto the gear ring 1 during the cooling process, and prevent the gear ring 1 and vertical gear 1 from rusting.

[0019] A further feature of this invention is that a waterproof cover for covering the gear ring two is installed on the outer circumferential surface of the negative pressure shaping sleeve, and a through hole is provided on the waterproof cover for the vertical gear two to extend into.

[0020] By adopting the above technical solution, the waterproof cover is used to protect the gear ring two and prevent water from falling on the gear ring two, which would cause corrosion problems on the gear ring two and the vertical gear two.

[0021] A further feature of this invention is that the precooling water supply assembly includes a water storage tank, a plunger pump, and a hose, with the two ends of the hose connected to the outlet of the plunger pump and the port of the annular precooling pipe, respectively.

[0022] By adopting the above technical solution, the plunger pump can pressurize and deliver water. When this water is sprayed out from the water mist nozzle, it forms a water mist and is sprayed out rapidly, ensuring that the initial cooling of the pipe is carried out smoothly.

[0023] A further feature of this invention is that the air-cooling assembly includes a fan, and an air guide pipe is provided between the fan and the air-cooling ring pipe. The air guide pipe is connected to the air-cooling ring pipe and a plurality of air outlet holes on the air-cooling ring pipe.

[0024] By adopting the above technical solution, the components of the air-cooled assembly are all relatively common and easy to obtain, and the cooling air emitted by the air-cooled assembly is relatively gentle, avoiding the problem of cracking of the pipes due to sudden cooling.

[0025] The beneficial effects of this utility model are:

[0026] In this device, the pipes undergo initial cooling through the combined action of annular precooling pipes, water mist nozzles, and precooling water supply components. Further cooling is achieved through the combined action of water-cooling sleeves, several water-cooling heads, and water-cooling circulation components. Finally, air-cooled ring pipes and air-cooling components work together to achieve air-cooled cooling. The entire process involves staged cooling of the pipes, preventing sudden cooling cracks and delamination, effectively controlling the roundness of the pipes, and improving pipe precision.

[0027] This device uses a negative pressure shaping sleeve, several negative pressure suction heads, and a vacuum assembly to shape the pipe. Under negative pressure, the plastic layer of the pipe will adhere tightly to the steel frame, which not only eliminates the deformation problems caused by plastic shrinkage and steel frame springback, but also reduces the pipe roundness deviation and improves the pipe accuracy. In this way, the heat on the steel frame can be quickly transferred to the plastic layer, thereby improving the cooling efficiency.

[0028] The water-cooling sleeve is equipped with telescopic connectors between itself and several water-cooling heads, and several negative pressure suction heads are equipped with telescopic components. This makes the device suitable for cooling and shaping steel skeleton composite pipes of different diameters, thus improving the practicality of the device.

[0029] The drive assembly drives the water-cooled sleeve and the negative pressure shaping sleeve to rotate simultaneously around the outer circumference of the pipe, which improves the uniformity of cooling and shaping of the pipe. The drive assembly uses only one forward and reverse motor as a power source, reducing energy consumption. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0031] Figure 2 This is a cross-sectional view of the present invention.

[0032] Figure 3 This is a schematic diagram of the connection structure of the water-cooling sleeve, water-cooling head, and connecting parts in this utility model.

[0033] Figure 4 This is a schematic diagram of the connection structure between the negative pressure shaping sleeve and the negative pressure suction head in this utility model.

[0034] Figure 5This is a schematic diagram of the negative pressure suction head in this utility model.

[0035] Figure 6 This is a schematic diagram of the structure of the water cooling head in this utility model.

[0036] Figure 7 This is a cross-sectional view of the water cooling head in this utility model.

[0037] In the diagram, 1. Frame; 2. Idler roller; 3. Annular precooling pipe; 31. Water mist nozzle; 4. Water-cooled sleeve; 5. Negative pressure shaping sleeve; 51. Annular cavity; 52. Negative pressure suction head; 521. Conduit; 522. Sleeve; 523. Telescopic component; 6. Air-cooled ring pipe; 61. Air outlet; 7. Precooling water supply assembly; 71. Water storage tank; 72. Plunger pump; 73. Hose; 8. Water cooling head; 81. Arc-shaped surface; 82. Water cooling cavity; 83. Guide channel; 9. Connector; 10. Water cooling circulation assembly; 101. Inlet pipe; 102. Outlet pipe. 103. Cold water tank; 104. Centrifugal pump; 105. Guide pipe; 106. Pipe connector; 11. Vacuum assembly; 111. Vacuum pump; 112. Condenser; 113. Gas pipe one; 114. Gas pipe two; 12. Drive assembly; 121. Forward and reverse motor; 122. Shaft; 123. Vertical gear one; 124. Vertical gear two; 13. Air-cooled assembly; 131. Fan; 132. Air duct; 14. Gear ring one; 15. Gear ring two; 16. Protective cover; 161. Long hole; 17. Waterproof cover; 171. Through hole. Detailed Implementation

[0038] Example: A cooling and shaping device for steel-reinforced composite pipes, such as... Figure 1 As shown, the system includes a frame 1. Several rollers 2 are spaced apart on the frame 1 along the pipe's travel direction. These rollers 2 are located on the same horizontal plane and are perpendicular to the pipe's travel direction. The rollers 2 can be height-adjustable. Along the pipe's travel direction, the frame 1 is sequentially equipped with an annular precooling pipe 3, a water-cooling sleeve 4, a negative pressure shaping sleeve 5, and an air-cooling annular pipe 6. These components are coaxially arranged. The annular precooling pipe 3 is vertically fixed to the frame 1. The water-cooling sleeve 4 and the negative pressure shaping sleeve 5 are rotatably mounted on the frame 1. The air-cooling annular pipe... 6 is fixed on the frame 1. The frame 1 is equipped with a drive assembly 12 that can simultaneously drive the water-cooling sleeve 4 and the negative pressure shaping sleeve 5 to rotate axially. The inner wall of the annular precooling pipe 3 is provided with a number of water mist nozzles 31. The number of water mist nozzles 31 are evenly distributed around the inner wall of the annular precooling pipe 3. The water mist nozzles 31 extend towards the outer periphery of the pipe. The annular precooling pipe 3 is connected to a precooling water supply assembly 7. The precooling water supply assembly 7 includes a water storage tank 71, a plunger pump 72 and a hose 73. The two ends of the hose 73 are respectively connected to the outlet of the plunger pump 72 and the port of the annular precooling pipe 3.

[0039] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, several water-cooling heads 8 are connected to the inner wall of the water-cooling sleeve 4. These water-cooling heads 8 are evenly spaced around the inner wall of the water-cooling sleeve 4. Each water-cooling head 8 has an arc-shaped surface 81 that contacts the outer circumference of the pipe. Each water-cooling head 8 is connected to the inner wall of the water-cooling sleeve 4 via a telescopic connector 9, which is a cylinder or an electric push rod. The frame 1 is also equipped with a water-cooling circulation assembly 10 connected to the several water-cooling heads 8. The water-cooling circulation assembly 10 includes a cold water tank 103, a centrifugal pump 104, several inlet flow meters, and several outlet flow meters. Each water-cooling head 8 has a water-cooling cavity 82. A guide groove 83 is formed on the cavity wall of the water-cooling cavity 82 near the corresponding arc-shaped surface 81. Each guide groove 83 extends axially along the water-cooling sleeve 4, that is, along the length of the pipe. Each water-cooling head 8 is connected to a water inlet. The system includes an inlet pipe 101 and an outlet pipe 102. The inlet pipe 101 and the outlet pipe 102 are respectively connected to the two ends of the guide groove 83 on the corresponding water cooling head 8. The centrifugal pump 104 is used to pump out the cold water in the cold water tank 103. The outlet of the centrifugal pump 104 is equipped with a guide pipe 105. The end of the guide pipe 105 away from the centrifugal pump 104 is equipped with a branch pipe connector 106. Several inlet pipes 101 are connected to the branch pipe connector 106. Each inlet pipe 101 is equipped with an inlet flow meter, and each outlet pipe 102 is equipped with an outlet flow meter. The frame 1 is located below the annular precooling pipe 3, the water cooling sleeve 4, the negative pressure shaping sleeve 5, and the air cooling ring pipe 6, and a water collection pool is provided. The water discharged from the water cooling head 8 through the outlet pipe 102 will be introduced into the water storage pool. After the temperature drops, it will be introduced into the cold water tank 103 to achieve recycling.

[0040] Furthermore, such as Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the negative pressure shaping sleeve 5 has an annular cavity 51 inside. Several retractable negative pressure suction heads 52, connected to the annular cavity 51, are fixed on the inner wall of the negative pressure shaping sleeve 5. The negative pressure shaping sleeve 5 is connected to a vacuum assembly 11, which includes a vacuum pump 111, a condenser 112, a first gas pipe 113, and a second gas pipe 114. The first gas pipe 113 connects the vacuum pump 111 and the condenser 112, and the second gas pipe 114 connects the condenser 112 and the negative pressure shaping sleeve 5. The condenser 112 has a liquid outlet pipe. The second gas pipe 114 connects to the vacuum pump 111 and the condenser 112 inside the negative pressure shaping sleeve 5. The annular cavity 51 is connected, and the negative pressure suction head 52 is provided with a conduit 521 and a sleeve 522. Both the conduit 521 and the sleeve 522 extend radially along the negative pressure shaping sleeve 5. The conduit 521 is inserted into one end of the sleeve 522 and the two are sealed together. The other end of the sleeve 522 is fixed to the inner wall of the negative pressure shaping sleeve 5 and is connected to the annular cavity 51. A telescopic member 523 is fixed on the outer wall of the sleeve 522. The telescopic rod of the telescopic member 523 extends along the length of the conduit 521 and the end of the telescopic rod is fixed to the outer surface of the conduit 521. Several negative pressure suction heads 52 have gaps with the outer circumference of the tube.

[0041] Furthermore, such as Figures 1 to 4 As shown, the drive assembly 12 includes a reversible motor 121, a rotating shaft 122, a first vertical gear 123, and a second vertical gear 124. A gear ring 14 is fixed to the outer periphery of the water-cooled sleeve 4, and a gear ring 15 is fixed to the outer periphery of the negative pressure shaping sleeve 5. The housing of the reversible motor 121 is fixed to the frame 1. The rotating shaft 122 extends axially along the water-cooled sleeve 4 and the negative pressure shaping sleeve 5 and is rotatably mounted on the frame 1. The output shaft end of the reversible motor 121 is fixedly connected to one end of the rotating shaft 122. The first vertical gear 123 is fixed to the rotating shaft 124. 23 and vertical gear 124 are fixed at intervals on the rotating shaft 122. Vertical gear 123 meshes with gear ring 14, and vertical gear 124 meshes with gear ring 15. The water-cooled sleeve 4 is provided with a protective cover 16 to cover gear ring 14. The negative pressure shaping sleeve 5 is provided with a waterproof cover 17 to cover gear ring 15. The protective cover 16 has an elongated hole 161 for vertical gear 123 to extend into, and the waterproof cover 17 has a through hole 171 for spur gear 2 to extend into.

[0042] Furthermore, such as Figure 1 and Figure 2 As shown, the inner wall of the air-cooled ring pipe 6 is provided with a number of air outlet holes 61. The air-cooled ring pipe 6 is connected to an air-cooling assembly 13. The air-cooling assembly 13 includes a fan 131 and an air guide pipe 132 for connecting the fan 131 and the air-cooled ring pipe 6. The air guide pipe 132 is connected to the air-cooled ring pipe 6 and the number of air outlet holes 61 on the air-cooled ring pipe 6.

[0043] Working Principle: This device utilizes the cooperation of annular precooling pipe 3 and precooling water supply assembly 7 to spray water mist from several water mist nozzles 31 on the annular precooling pipe 3 for initial cooling of the pipe. Then, the drive assembly 12 drives the water-cooling sleeve 4 and negative pressure shaping sleeve 5 to rotate. Several water-cooling heads 8 on the water-cooling sleeve 4 cooperate with the water-cooling circulation assembly 10 for further cooling. Afterwards, several negative pressure suction heads 52 on the negative pressure shaping sleeve 5 adsorb the pipe and shape it. The water-cooling heads 8 and the water-cooling sleeve 4 are connected by a telescopic connector 9. The negative pressure... An expansion joint 523 is provided between the suction head 52 and the negative pressure shaping sleeve 5, making this device suitable for cooling and shaping pipes of different diameters, thus improving its practicality. After shaping, the pipe is cooled by air cooling. The entire process is carried out in stages to avoid sudden cooling cracking and delamination. During the shaping process, the plastic layer of the pipe will adhere tightly to the steel skeleton under the action of negative pressure, avoiding deformation problems caused by plastic shrinkage and steel skeleton springback, reducing the pipe roundness deviation and improving the pipe accuracy. During this process, the heat on the steel skeleton can be quickly transferred to the plastic layer, thereby improving the cooling efficiency.

Claims

1. A cooling and shaping device for steel-reinforced composite pipes, characterized in that: The system includes a frame (1), on which several rollers (2) are spaced apart in the direction of pipe travel, and an annular precooling pipe (3), a water-cooling sleeve (4), a negative pressure shaping sleeve (5), and an air-cooling ring pipe (6) are sequentially arranged for the pipe to pass through. The annular precooling pipe (3) is provided with several water mist nozzles (31), which are evenly spaced around the inner wall of the annular precooling pipe (3). All extend towards the outer periphery of the pipe. The annular precooling pipe (3) is connected to a precooling water supply assembly (7). Several water cooling heads (8) connected to the outer side of the pipe are connected to the inner wall of the water cooling sleeve (4). The several water cooling heads (8) are evenly spaced around the inner wall of the water cooling sleeve (4). A telescopic connector (9) is provided between the water cooling sleeve (4) and the several water cooling heads (8). The frame (1) is provided with a connector for the several water cooling heads (8). The water-cooled circulation assembly (10) is connected; the negative pressure shaping sleeve (5) has an annular cavity (51) and the inner wall of the negative pressure shaping sleeve (5) is provided with several retractable negative pressure suction heads (52). The annular cavity (51) is connected to several negative pressure suction heads (52). The several negative pressure suction heads (52) are evenly distributed around the inner wall of the negative pressure shaping sleeve (5) and have gaps between them and the outer circumferential surface of the pipe. A vacuum assembly (11) is connected to the frame (1), and the water-cooled sleeve (4) and the negative pressure shaping sleeve (5) are rotatably connected to the frame (1). The frame (1) is provided with a drive assembly (12) that can simultaneously drive the water-cooled sleeve (4) and the negative pressure shaping sleeve (5) to rotate in both directions. The inner wall of the air-cooled ring pipe (6) is provided with several air outlet holes (61), and the air-cooled ring pipe (6) is connected to an air-cooling assembly (13) for providing cooling air.

2. The cooling and shaping device for steel-reinforced composite pipes according to claim 1, characterized in that: The water cooling head (8) has an arc-shaped surface (81) that is in contact with the outer circumferential surface of the pipe. The water cooling head (8) has a water cooling cavity (82) inside. The water cooling cavity (82) has a guide groove (83) on the cavity wall near the arc-shaped surface (81). The guide groove (83) extends axially along the water cooling sleeve (4). The water cooling circulation assembly (10) includes several inlet pipes (101) and outlet pipes (102) that are connected to the water cooling cavities (82) of the corresponding water cooling head (8). The inlet pipes (101) and outlet pipes (102) connected to the water cooling head (8) are respectively connected to the two ends of the guide groove (83) on the water cooling cavity (82) in the water cooling head (8).

3. The cooling and shaping device for steel-reinforced composite pipes according to claim 2, characterized in that: The water-cooled circulation assembly (10) further includes a cold water tank (103) and a centrifugal pump (104) for pumping cold water out of the cold water tank (103). The outlet of the centrifugal pump (104) is equipped with a guide pipe (105). A branch pipe connector (106) is installed at one end of the guide pipe (105) away from the centrifugal pump (104). The ends of several water inlets (101) away from the corresponding water cooling head (8) are connected to the guide pipe (105) through the branch pipe connector (106).

4. A cooling and shaping device for steel-reinforced composite pipes according to any one of claims 1 to 3, characterized in that: The negative pressure suction head (52) is provided with a conduit (521) and a sleeve (522) extending radially along the negative pressure shaping sleeve (5). The conduit (521) is inserted into one end of the sleeve (522) and the two are sealed together. The other end of the sleeve (522) is fixed to the inner wall of the negative pressure shaping sleeve (5) and communicates with the annular cavity (51). A telescopic member (523) is provided between the conduit (521) and the sleeve (522). The shell of the telescopic member (523) is fixed to the outer surface of the sleeve (522). The telescopic rod of the telescopic member (523) extends along the length direction of the conduit (521) and the end of the telescopic rod is fixed to the outer surface of the conduit (521).

5. A cooling and shaping device for steel-reinforced composite pipes according to claim 4, characterized in that: The vacuum assembly (11) includes a vacuum pump (111), a condenser (112), a first gas pipe (113) for connecting the vacuum pump (111) and the condenser (112), and a second gas pipe (114) for connecting the condenser (112) and the negative pressure shaping sleeve (5). The second gas pipe (114) communicates with the annular cavity (51) inside the negative pressure shaping sleeve (5).

6. A cooling and shaping device for steel-reinforced composite pipes according to claim 1, characterized in that: The drive assembly (12) includes a reversible motor (121), a rotating shaft (122) extending axially along the water-cooled sleeve (4), and a vertical gear one (123) and a vertical gear two (124) spaced on the rotating shaft (122). A gear ring one (14) meshing with the vertical gear one (123) is fixed on the outer periphery of the water-cooled sleeve (4). A gear ring two (15) meshing with the vertical gear two (124) is fixed on the outer periphery of the negative pressure shaping sleeve (5). The rotating shaft (122) is rotatably mounted on the frame (1). The housing of the reversible motor (121) is fixed on the frame (1), and the output shaft end of the reversible motor (121) is fixedly connected to one end of the rotating shaft (122).

7. A cooling and shaping device for steel-reinforced composite pipes according to claim 6, characterized in that: The water-cooled sleeve (4) has a protective cover (16) on its outer circumference to cover the gear ring (14), and the protective cover (16) has an elongated hole (161) for the vertical gear (123) to extend into.

8. A cooling and shaping device for steel-reinforced composite pipes according to claim 6 or 7, characterized in that: The outer circumferential surface of the negative pressure shaping sleeve (5) is equipped with a waterproof cover (17) for covering the gear ring two (15), and the waterproof cover (17) has a through hole (171) for the vertical gear two (124) to extend into.

9. A cooling and shaping device for steel-reinforced composite pipes according to claim 1, characterized in that: The precooling water supply assembly (7) includes a water storage tank (71), a plunger pump (72), and a hose (73). The two ends of the hose (73) are connected to the outlet of the plunger pump (72) and the port of the annular precooling pipe (3), respectively.

10. A cooling and shaping device for steel-reinforced composite pipes according to claim 1, characterized in that: The air-cooled assembly (13) includes a fan (131), and an air guide pipe (132) is provided between the fan (131) and the air-cooled ring pipe (6). The air guide pipe (132) is connected to the air-cooled ring pipe (6) and a plurality of air outlet holes (61) on the air-cooled ring pipe (6).

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