Corrosion-resistant insulating plastic pipe material and preparation process and device

Abstract

The application relates to the field of plastic pipe production equipment, in particular to a corrosion-resistant insulating plastic pipe and a preparation process and device thereof. The device comprises a motor, a feeding pipe is connected to the right side of the motor in a penetrating mode, a rotating shaft is rotationally connected to the center of the feeding pipe, the rotating shaft is fixedly connected to the motor, a heating seat is arranged in the middle of the feeding pipe, a positioning disc is fixedly connected to the right side of the feeding pipe, a pulling structure is movably connected to the right side of the rotating shaft, a butt joint structure is movably connected to the right side of the pulling structure, a cooling structure is fixedly connected to the right side of the butt joint structure, a fixed pushing structure is arranged in the center of the pulling structure and the butt joint structure, and a plastic pipe is slidably connected to the center of the cooling structure. Through the arrangement of the pulling structure, the purpose of automatic butt joint pulling of the plastic pipe is achieved.

Description

Technical Field

[0001] This invention relates to the field of plastic pipe production equipment, specifically to a corrosion-resistant and insulating plastic pipe and its preparation process and apparatus. Background Technology

[0002] The main component of plastic pipes is polyvinyl chloride (PVC). Other chemical components are added to enhance the heat resistance, toughness, and ductility of the plastic pipes. The top layer of the plastic pipe is paint, the middle layer is mainly PVC, and the bottom layer is a backing adhesive. These components combine to form the plastic pipe. Due to the structural characteristics of plastic pipes, corrosion-resistant and insulating treatments are required to meet practical application needs. At the same time, the plastic pipe manufacturing equipment is used for rapid production of plastic pipes, enabling automated production.

[0003] Currently, during the production of existing plastic pipes, due to insufficient strength in the early stages, tensioning is often required. This necessitates manual connection of the pipe joints, which prolongs processing time and reduces production efficiency. Therefore, an improved device is needed to address these issues. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a corrosion-resistant and insulating plastic pipe, as well as its preparation process and apparatus.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a corrosion-resistant and insulating plastic pipe and its preparation process and apparatus, including an electric motor, a feed pipe connected through the right side of the electric motor, a rotating shaft rotatably connected to the center of the feed pipe, the rotating shaft being fixedly connected to the electric motor, a heating seat installed in the middle of the feed pipe, a positioning plate fixedly connected to the right side of the feed pipe, a pulling structure movably connected to the right side of the rotating shaft, a docking structure movably connected to the right side of the pulling structure, a cooling structure fixedly connected to the right side of the docking structure, a fixed pushing structure provided at the center of the pulling structure and the docking structure, and a plastic pipe slidably connected to the center of the cooling structure;

[0006] The traction structure includes a first motor, a limiting frame, a displacement frame, and a threaded rod. The threaded rod is fixedly connected to the right side of the first motor. The threaded rod is connected through the limiting frame. The upper end of the limiting frame is threadedly connected to the displacement frame.

[0007] The traction structure also includes a second motor, a pressing frame, and a docking plate. The top of the displacement frame is fixedly connected to the docking plate. The upper and lower ends of the docking plate are equipped with second motors. The center of the second motor is fixedly connected to the pressing frame. The pressing frame is symmetrically arranged about the docking plate.

[0008] The docking structure includes a pushing component, a fixed rod, a shaft connecting rod, a channel frame, a telescopic rod, and a hydraulic cylinder. The top of the shaft connecting rod is fixedly connected to the fixed rod, the center of the fixed rod is fixedly connected to the pushing component, the center of the shaft connecting rod is fixedly connected to the channel frame, the right side of the fixed rod is telescopically connected to the telescopic rod, and the right side of the telescopic rod is fixedly connected to the hydraulic cylinder.

[0009] The pushing component also includes a third motor, a drive shaft, a transmission belt, a drive wheel, a cooperating rotating rod, and a synchronous toothed belt. The drive shaft is driven to both sides of the third motor. The lower end of the drive shaft is rotatably connected to the drive wheel through the transmission belt. The front and rear ends of the drive wheel are fixedly connected to the cooperating rotating rod. The upper end of the cooperating rotating rod is engaged with the synchronous toothed belt.

[0010] The cooling structure includes a protective plate, a connecting frame, a conduit, and a water tank. The connecting frame is fixedly connected to the top of the protective plate, and a water tank is installed at the upper end of the connecting frame. Conduits are connected to the front and rear sides of the water tank.

[0011] The cooling structure also includes a branch pipe, a pressure seat, a pressure nozzle, a limiting arc plate, a pusher wheel, and a base plate. The lower end of the water tank is connected to the branch pipe through a connecting frame. The lower end of the branch pipe is connected to the pressure seat, and the lower end of the pressure seat is connected to the pressure nozzle.

[0012] Specifically, a base plate is fixedly connected to the bottom end of the guard plate, and a pusher wheel is rotatably connected to the center of the base plate. Limiting arc discs are sleeved on the left and right sides of the pusher wheel, and the pusher wheel is rotatably set at the center of the limiting arc disc.

[0013] Specifically, the structure of the fixed pusher structure is the same as that of the pusher component and the fixed rod. The docking structure adopts a movable design, while the fixed pusher structure adopts a fixed design.

[0014] Specifically, the top of the third motor is fixedly connected to the fixed rod, the drive wheel is located directly above the channel frame, and a slot is provided on the right side of the channel frame, with the drive wheel connected to the inside of the channel frame slot.

[0015] Specifically, the displacement frame, the second motor, the pressing frame, and the docking plate adopt a movable design. The pulling structure is adapted to the channel trough frame through the docking plate, and the left side of the docking plate is adapted to connect with the feed pipe.

[0016] Specifically, the water tank is connected to an external water source through a conduit, the protective plate is fixedly connected to a hydraulic cylinder, and the hydraulic cylinder pushes the material pushing component and the channel frame to extend and retract through a telescopic rod, a shaft connecting rod, and a fixed rod.

[0017] Specifically, a first support frame is fixedly connected to the top of the cooling structure, and a second support frame is fixedly connected to the upper end of the first support frame.

[0018] Specifically, the plastic tube includes a bushing rod, a connecting frame, and a protective shell. The left and right sides of the bushing rod are fixedly connected to the connecting frame, and the protective shell is fixedly connected to the center of the connecting frame.

[0019] Specifically, the plastic tube also includes an inner tube and an interface frame. The inner tube is sleeved in the center of the protective shell, and both the left and right sides of the inner tube are fixedly connected to the interface frame.

[0020] A manufacturing process for corrosion-resistant and insulating plastic pipes includes the following steps:

[0021] S1. First, connect the feed pipe to the external feed pipe so that the plastic granules can reach the inside of the feed pipe. By turning on the heating seat, the inside of the feed pipe is heated, so that the plastic granules inside the feed pipe are heated and then the motor is driven. The motor can drive the rotating shaft to rotate, so that the material is transported along the rotating shaft after melting and forming. Through the gap between the rotating shaft and the feed pipe, the forming and extrusion are performed to form a tube structure.

[0022] S2. Then, the first motor drives the threaded rod to rotate, which acts on the displacement frame, the second motor, the pressing frame, and the docking plate, so that the docking plate connects with the feed pipe. Through the control of the pressing frame, the plastic pipe is pressed. At the same time, the hydraulic cylinder is driven to connect the channel frame with the docking plate. The old pipe in the channel frame is connected to the plastic pipe. Through the pressing of the pressing frame, the connection between them is achieved. The third motor drives the drive wheel to rotate, thereby driving the plastic pipe and the old pipe to move and realize the docking and pulling work.

[0023] S3. After that, the plastic tube reaches the position of the pusher wheel. The pusher wheel rotates, driving the plastic tube to move. At the same time, the conduit supplies water to the water tank. The water is conducted through the branch pipe and the pressurizing seat to the pressurizing nozzle. The pressurizing nozzle sprays water to achieve the curing and cooling of the plastic tube, thus completing the production purpose of the plastic tube.

[0024] The beneficial effects of this invention are:

[0025] First, this invention utilizes a combination of a rotating shaft, a feed pipe, and a motor. The feed pipe connects to an external feed pipe, allowing the material to be transferred into its interior. Heating is achieved via a heating base, and the motor simultaneously drives the rotating shaft to rotate, thus producing the plastic pipe. Simultaneously, the pressing frame at the inner end of the pulling structure, driven by a second motor, rotates to contact the plastic pipe. This facilitates the quick connection of the plastic pipe to the existing pipe within the channel frame via a connecting disc, improving pipe assembly and enabling the pulling of the plastic pipe through the existing pipe within the channel frame. This reduces manual operation, automates pipe assembly, and increases the efficiency of plastic pipe production.

[0026] Second, this invention combines a docking structure, a cooling structure, and a fixed pushing structure. The plastic tube is driven by the pushing component at the inner end of the docking structure, which pushes the plastic tube within the channel frame and performs a pulling operation. Simultaneously, the channel frame can be adjusted in position via a telescopic rod and a hydraulic cylinder, facilitating docking with the docking plate at the inner end of the pulling structure. The fixed pushing structure is a secondary pushing structure with the same structure as the pushing component, facilitating continuous transmission of the plastic tube. The water tank at the inner end of the cooling structure, connected by branch pipes, a pressure seat, and a pressure nozzle, can cool the surface of the plastic tube, achieving rapid curing and facilitating efficient and automated production of the plastic tube. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention;

[0029] Figure 2 This is a three-dimensional structural diagram of the main body of the present invention from the left side view.

[0030] Figure 3 This is a three-dimensional structural diagram of the tension structure from the front view in this invention;

[0031] Figure 4 This is a three-dimensional structural diagram of the tension structure from the left side view in this invention;

[0032] Figure 5 This is a three-dimensional structural diagram of the docking structure from the front view in this invention;

[0033] Figure 6 This is a three-dimensional structural diagram of the material pushing component from the front view in this invention;

[0034] Figure 7 This is a frontal perspective three-dimensional structural diagram of the cooling structure in this invention;

[0035] Figure 8This is a split view of the cooling structure in this invention;

[0036] Figure 9 This is a three-dimensional structural diagram of the plastic tube from the front view in this invention;

[0037] Figure 10 This is an exploded view of the plastic tube in this invention;

[0038] Figure 11 This is a frontal perspective three-dimensional structural diagram of the second embodiment of the present invention.

[0039] In the diagram: 1-Rotating shaft, 2-Positioning plate, 3-Heating seat, 4-Feed pipe, 5-Motor, 6-Pull structure, 7-Dating structure, 8-Cooling structure, 9-Fixed pusher structure, 10-Plastic tube, 11-First motor, 12-Limiting frame, 13-Displacement frame, 14-Threaded rod, 15-Second motor, 16-Pressing frame, 17-Dating connecting plate, 18-Pusher component, 19-Fixed rod, 20-Shaft connecting rod, 21-Channel slot frame, 22-Telescopic rod, 23-Hydraulic cylinder 24-Third motor, 25-Drive shaft, 26-Conduction belt, 27-Drive wheel, 28-Coordinating rotating rod, 29-Synchronous toothed belt, 30-Guard plate, 31-Connecting frame, 32-Conduit, 33-Water tank, 34-Branch pipe, 35-Pressure seat, 36-Pressure nozzle, 37-Limiting arc plate, 38-Push guide wheel, 39-Base plate, 40-Shaft sleeve rod, 41-Connecting frame, 42-Protective shell, 43-Inner tube, 44-Interface frame, 45-First support frame, 46-Second support frame. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0042] The invention will be further described below with reference to the accompanying drawings.

[0043] Example 1

[0044] like Figure 1 , Figure 2 As shown, the present invention discloses a corrosion-resistant insulating plastic pipe and its manufacturing process and apparatus, including an electric motor 5, a feed pipe 4 connected through the right side of the electric motor 5, a rotating shaft 1 rotatably connected to the center of the feed pipe 4, the rotating shaft 1 being fixedly connected to the electric motor 5, a heating seat 3 installed in the middle of the feed pipe 4, a positioning plate 2 fixedly connected to the right side of the feed pipe 4, a pulling structure 6 movably connected to the right side of the rotating shaft 1, a docking structure 7 movably connected to the right side of the pulling structure 6, a cooling structure 8 fixedly connected to the right side of the docking structure 7, a fixed pushing structure 9 provided at the center of the pulling structure 6 and the docking structure 7, and a plastic pipe 10 slidably connected to the center of the cooling structure 8. The heating seat 3 adopts the prior art setting to heat melt the particles inside the feed pipe 4, facilitating the continuous production of the pipe body.

[0045] like Figure 3 As shown, the traction structure 6 includes a first motor 11, a limiting frame 12, a displacement frame 13, and a threaded rod 14. The threaded rod 14 is fixedly connected to the right side of the first motor 11. The threaded rod 14 is connected to the limiting frame 12. The upper end of the limiting frame 12 is threadedly connected to the displacement frame 13. A smooth round rod is provided at a symmetrical position of the threaded rod 14 about the displacement frame 13. The smooth round rod is used for limiting the displacement frame 13, so that the displacement frame 13 can only move along the direction of the limiting frame 12.

[0046] like Figure 4 As shown, the tensioning structure 6 also includes a second motor 15, a pressing frame 16, and a docking plate 17. The top of the displacement frame 13 is fixedly connected to the docking plate 17. The upper and lower ends of the docking plate 17 are equipped with second motors 15. The center of the second motor 15 is fixedly connected to the pressing frame 16. The pressing frame 16 is symmetrically arranged about the docking plate 17. The second motor 15 drives the pressing frame 16 to rotate, which can connect the pressing frame 16 to the plastic tube 10. The docking plate 17 also serves as a central transition, making it convenient to dock the plastic tube 10 for production.

[0047] like Figure 5As shown, the docking structure 7 includes a pushing component 18, a fixing rod 19, a shaft connecting rod 20, a channel frame 21, a telescopic rod 22, and a hydraulic cylinder 23. The top of the shaft connecting rod 20 is fixedly connected to the fixing rod 19, the center of the fixing rod 19 is fixedly connected to the pushing component 18, the center of the shaft connecting rod 20 is fixedly connected to the channel frame 21, the right side of the fixing rod 19 is telescopically connected to the telescopic rod 22, the right side of the telescopic rod 22 is fixedly connected to the hydraulic cylinder 23, and the channel frame 21 has a groove to facilitate the pushing of the old pipe and plastic pipe 10 inside, so as to achieve the purpose of automatic pulling of the plastic pipe 10.

[0048] like Figure 6 As shown, the feeding component 18 also includes a third motor 24, a drive shaft 25, a transmission belt 26, a drive wheel 27, a cooperating rotating rod 28, and a synchronous toothed belt 29. The drive shaft 25 is driven to both sides of the third motor 24. The lower end of the drive shaft 25 is rotatably connected to the drive wheel 27 through the transmission belt 26. The cooperating rotating rod 28 is fixedly connected to both ends of the drive wheel 27. The upper end of the cooperating rotating rod 28 is meshed with the synchronous toothed belt 29. The third motor 24 is an existing mechanism design that drives the drive shaft 25 to rotate synchronously. It acts on the drive wheel 27 through the transmission belt 26. At the same time, the cooperating rotating rod 28 can be driven by the synchronous toothed belt 29 to achieve synchronous rotation.

[0049] like Figure 7 As shown, the cooling structure 8 includes a protective plate 30, a connecting frame 31, a conduit 32, and a water tank 33. The top of the protective plate 30 is fixedly connected to the connecting frame 31, and the upper end of the connecting frame 31 is equipped with a water tank 33. The front and rear sides of the water tank 33 are connected to the conduit 32.

[0050] like Figure 8 As shown, the cooling structure 8 also includes a branch pipe 34, a pressurizing seat 35, a pressurizing nozzle 36, a limiting arc plate 37, a pusher wheel 38, and a base plate 39. The lower end of the water tank 33 is connected to the branch pipe 34 via a connecting frame 31. The lower end of the branch pipe 34 is connected to the pressurizing seat 35, and the lower end of the pressurizing seat 35 is connected to the pressurizing nozzle 36. Both the pressurizing seat 35 and the pressurizing nozzle 36 pressurize by narrowing the pipe opening position, so that the water flow from the upper part is pressurized and conducted.

[0051] like Figure 8 As shown, a base plate 39 is fixedly connected to the bottom end of the guard plate 30. A pusher wheel 38 is rotatably connected to the center of the base plate 39. Limiting arc disks 37 are sleeved on the left and right sides of the pusher wheel 38. The pusher wheel 38 is rotatably set at the center of the limiting arc disk 37.

[0052] The structure of the fixed pusher structure 9 is the same as that of the pusher component 18 and the fixed rod 19. The docking structure 7 adopts a movable design, while the fixed pusher structure 9 adopts a fixed design.

[0053] The top of the third motor 24 is fixedly connected to the fixing rod 19. The drive wheel 27 is located directly above the channel frame 21, and a slot is provided on the right side of the channel frame 21. The drive wheel 27 is connected to the inside of the slot of the channel frame 21. The connection between the fixing rod 19 and the third motor 24 enables the support of the third motor 24, which helps to fix the pusher component 18 and the fixing rod 19 to each other.

[0054] The displacement frame 13, the second motor 15, the pressing frame 16, and the docking plate 17 adopt a movable design. The pulling structure 6 is adapted to the channel trough frame 21 through the docking plate 17. The left side of the docking plate 17 is adapted to connect with the feed pipe 4. Through the adaptation connection, the transmission of the plastic pipe 10 is realized in a high-efficiency manner, reducing manual operation.

[0055] Water tank 33 is connected to an external water source through conduit 32. Protective plate 30 is fixedly connected to hydraulic cylinder 23. Hydraulic cylinder 23 pushes the pushing component 18 and channel frame 21 to extend and retract through telescopic rod 22, shaft connecting rod 20 and fixed rod 19.

[0056] like Figure 9 , Figure 10 As shown, the plastic tube 10 includes a bushing rod 40, a connecting frame 41, and a protective shell 42. The left and right sides of the bushing rod 40 are fixedly connected to the connecting frame 41, and the protective shell 42 is fixedly connected to the center of the connecting frame 41. The plastic tube 10 also includes an inner tube 43 and an interface frame 44. The center of the protective shell 42 is fitted with the inner tube 43, and the left and right sides of the inner tube 43 are fixedly connected to the interface frame 44. The bushing rod 40, the connecting frame 41, and the protective shell 42 are connected to the upper end of the inner tube 43 to protect the inner tube 43 internally. The bushing rod 40, the connecting frame 41, and the protective shell 42 are made of PE material to better achieve the purpose of corrosion resistance and insulation.

[0057] A manufacturing process for corrosion-resistant and insulating plastic pipes includes the following steps:

[0058] S1. First, connect the feed pipe 4 to the external feed pipe so that the plastic particles reach the inside of the feed pipe 4. By turning on the heating seat 3, the inside of the feed pipe 4 is heated, so that the plastic particles inside the feed pipe 4 are heated. Then, drive the motor 5. The motor 5 can drive the rotating shaft 1 to rotate, so that the material is transported along the molten material of the rotating shaft 1. Through the gap between the rotating shaft 1 and the feed pipe 4, the molding and extrusion are performed to form a tube structure.

[0059] S2. Then, the first motor 11 drives the threaded rod 14 to rotate, which acts on the displacement frame 13, the second motor 15, the pressing frame 16, and the docking plate 17, so that the docking plate 17 docks with the feed pipe 4. Through the control of the pressing frame 16, the plastic tube 10 is pressed. At the same time, the hydraulic cylinder 23 is driven to dock the channel frame 21 with the docking plate 17. The old tube in the channel frame 21 is connected to the plastic tube 10. Through the pressing of the pressing frame 16, the connection between them is achieved. The third motor 24 is driven, and the third motor 24 drives the drive wheel 27 to rotate, thereby driving the plastic tube 10 and the old tube to move, realizing the docking and pulling work.

[0060] S3. Then, the plastic tube 10 reaches the position of the pusher wheel 38. The pusher wheel 38 rotates to drive the plastic tube 10 to move. At the same time, the conduit 32 supplies water to the water tank 33. The water is conducted to the pressurized nozzle 36 through the branch pipe 34 and the pressurized seat 35. The pressurized nozzle 36 sprays water to achieve the curing and cooling of the plastic tube 10, thus completing the production purpose of the plastic tube 10.

[0061] The working principle of Example 1 is as follows: During use, the feed pipe 4 is first connected to an external conveying pipe, and the plastic granules are conveyed through the conveying pipe to reach the interior of the feed pipe 4. At this time, the heating seat 3 operates, heating the interior of the feed pipe 4 and melting the plastic granules inside. Simultaneously, the drive motor 5 rotates the rotating shaft 1, causing the material to be transported along the molten material on the rotating shaft 1. Through the gap between the rotating shaft 1 and the feed pipe 4, molding and extrusion are performed to form a tube structure. Afterwards, the user controls the first motor 11 to operate, driving the threaded rod 14 to rotate inside the limiting frame 12, acting on the displacement frame 13. The displacement frame 13, limited by the limiting frame 12, can only move laterally. Driven by the threaded rod 14, the displacement frame 13 adjusts its position so that the docking disc 17 aligns with the right side of the feed pipe 4. However, a gap still exists between the feed pipe 4 and the docking disc 17. At this point, the second motor 15 is driven, which rotates the pressing frame 16. The pressing frame 16 contacts the newly produced plastic tube 10. Initially, due to insufficient strength, it cannot be lifted. Under the pressure of the pressing frame 16, the plastic tube 10 will be cut off and fall. When the strength is sufficient, the user controls the hydraulic cylinder 23, which drives the telescopic rod 22 to extend and retract. The position of the shaft connecting rod 20 is changed, which in turn adjusts the position of the channel slot frame 21. The channel rack 21 aligns with the connecting disc 17. Then, driven by the second motor 15, the pressing frame 16 presses, connecting the plastic tube 10 to the old tube inside the channel rack 21. Next, the pushing component 18 is driven, and the third motor 24 inside the pushing component 18 drives the drive shaft 25 to rotate, which in turn drives the transmission belt 26 to rotate. This drives the drive wheel 27 to rotate, and the rotation of the drive wheel 27 acts on the cooperating rotating rod 28, which in turn drives the synchronous toothed belt 29 to rotate. This causes the four cooperating rotating rods 28 to rotate synchronously, thereby driving the four drive wheels 27 to rotate synchronously. The drive wheels 27 simultaneously drive the old tube and the plastic tube 10 into the channel rack. The tube is pulled and then reaches the fixed pusher structure 9. The fixed pusher structure 9 adopts the same structural design as the pusher component 18. Driven by the drive wheel 27, it is pushed and pulled again until the plastic tube 10 reaches the middle position of the limit arc plate 37. At this time, the pusher wheel 38 can rotate by the drive. The pusher wheel 38 is connected to the plastic tube 10 and pushes the plastic tube 10 to move. At the same time, the external water source supplies water. The water is transferred to the water tank 33 through the conduit 32 and reaches the inside of the pressure seat 35 through the branch pipe 34. The pressure seat 35 pressurizes the water and sprays it onto the surface of the plastic tube 10 through the pressure nozzle 36, so that the surface of the plastic tube 10 is cured, and the overall production of the plastic tube 10 is completed.

[0062] Example 2

[0063] Based on Example 1, such as Figure 11 As shown, a first support frame 45 is fixedly connected to the top of the cooling structure 8, and a second support frame 46 is fixedly connected to the upper end of the first support frame 45.

[0064] In this embodiment, the second support frame 46 is fixed to the cooling structure 8 through the first support frame 45, and the second support frame 46 adopts a planar structure design and is laid directly above the tension structure 6 and the docking structure 7. By setting up the second support frame 46, the top of the tension structure 6 and the docking structure 7 is sealed, so as to better carry out the sealing production of the plastic tube 10 and reduce the entry of external dust into the interior of the plastic tube 10 production device.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preparing corrosion-resistant and insulating plastic pipes, comprising an electric motor (5), a feed pipe (4) being connected through to the right side of the electric motor (5), a rotating shaft (1) being rotatably connected to the center of the feed pipe (4), the rotating shaft (1) being fixedly connected to the electric motor (5), a heating seat (3) being installed in the middle of the feed pipe (4), and a positioning plate (2) being fixedly connected to the right side of the feed pipe (4), characterized in that: The right side of the rotating shaft (1) is movably connected to a pulling structure (6), the right side of the pulling structure (6) is movably connected to a docking structure (7), the right side of the docking structure (7) is fixedly connected to a cooling structure (8), the center of the pulling structure (6) and the docking structure (7) is provided with a fixed pushing structure (9), and the center of the cooling structure (8) is slidably connected to a plastic tube (10). The traction structure (6) includes a first motor (11), a limiting frame (12), a displacement frame (13), and a threaded rod (14); the right side of the first motor (11) is fixedly connected to the threaded rod (14), the threaded rod (14) is connected through the limiting frame (12), and the upper end of the limiting frame (12) is threadedly connected to the displacement frame (13). The traction structure (6) also includes a second motor (15), a pressing frame (16) and a docking plate (17). The top of the displacement frame (13) is fixedly connected to the docking plate (17). The upper and lower ends of the docking plate (17) are provided with a second motor (15). The center of the second motor (15) is fixedly connected to the pressing frame (16). The pressing frame (16) is symmetrically arranged about the docking plate (17). The docking structure (7) includes a pushing component (18), a fixed rod (19), a shaft connecting rod (20), a channel frame (21), a telescopic rod (22), and a hydraulic cylinder (23); the top of the shaft connecting rod (20) is fixedly connected to the fixed rod (19), the center of the fixed rod (19) is fixedly connected to the pushing component (18), the center of the shaft connecting rod (20) is fixedly connected to the channel frame (21), the right side of the fixed rod (19) is telescopically connected to the telescopic rod (22), and the right side of the telescopic rod (22) is fixedly connected to the hydraulic cylinder (23); The pushing component (18) also includes a third motor (24), a drive shaft (25), a transmission belt (26), a drive wheel (27), a cooperating rotating rod (28), and a synchronous toothed belt (29). The drive shaft (25) is driven and connected to both sides of the third motor (24). The lower end of the drive shaft (25) is rotatably connected to the drive wheel (27) through the transmission belt (26). The cooperating rotating rod (28) is fixedly connected to both the front and rear ends of the drive wheel (27). The upper end of the cooperating rotating rod (28) is meshed with the synchronous toothed belt (29). The cooling structure (8) includes a protective plate (30), a connecting frame (31), a conduit (32), and a water tank (33); The top of the guard plate (30) is fixedly connected to a connecting frame (31), and a water tank (33) is installed at the upper end of the connecting frame (31). The front and rear sides of the water tank (33) are connected to a conduit (32). The cooling structure (8) also includes a branch pipe (34), a pressurizing seat (35), a pressurizing nozzle (36), a limiting arc plate (37), a pusher wheel (38), and a base plate (39). The lower end of the water tank (33) is connected to the branch pipe (34) through the connecting frame (31). The lower end of the branch pipe (34) is connected to the pressurizing seat (35), and the lower end of the pressurizing seat (35) is connected to the pressurizing nozzle (36). The structure of the fixed pusher structure (9) is the same as that of the pusher component (18) and the fixed rod (19).

2. The apparatus for preparing corrosion-resistant and insulating plastic pipes according to claim 1, characterized in that: The bottom end of the guard plate (30) is fixedly connected to the base plate (39), and the center of the base plate (39) is rotatably connected to the push guide wheel (38). The left and right sides of the push guide wheel (38) are fitted with the limiting arc disk (37), and the push guide wheel (38) is rotatably set at the center of the limiting arc disk (37).

3. The apparatus for preparing corrosion-resistant and insulating plastic pipes according to claim 2, characterized in that: The docking structure (7) is designed to be movable, while the fixed pushing structure (9) is designed to be fixed.

4. The apparatus for preparing corrosion-resistant and insulating plastic pipes according to claim 3, characterized in that: The top of the third motor (24) is fixedly connected to the fixed rod (19), the drive wheel (27) is located directly above the channel frame (21), and a slot is provided on the right side of the channel frame (21). The drive wheel (27) is connected to the inside of the slot of the channel frame (21).

5. The apparatus for preparing corrosion-resistant and insulating plastic pipes according to claim 4, characterized in that: The displacement frame (13), the second motor (15), the pressing frame (16), and the docking plate (17) are designed to be movable. The traction structure (6) is adapted to the channel frame (21) through the docking plate (17). The left side of the docking plate (17) is adapted to connect with the feed pipe (4).

6. The apparatus for preparing corrosion-resistant and insulating plastic pipes according to claim 5, characterized in that: The water tank (33) is connected to an external water source through a conduit (32). The guard plate (30) is fixedly connected to the hydraulic cylinder (23). The hydraulic cylinder (23) pushes the pushing component (18) and the channel frame (21) to extend and retract through the telescopic rod (22), shaft connecting rod (20), and fixed rod (19).

7. The apparatus for preparing corrosion-resistant and insulating plastic pipes according to claim 6, characterized in that: The top of the cooling structure (8) is fixedly connected to a first support frame (45), and the upper end of the first support frame (45) is fixedly connected to a second support frame (46).

8. A corrosion-resistant and insulating plastic pipe, produced using the apparatus for preparing a corrosion-resistant and insulating plastic pipe according to any one of claims 1-7, characterized in that: The plastic tube (10) includes a bushing rod (40), a connecting frame (41) and a protective shell (42). The left and right sides of the bushing rod (40) are fixedly connected to the connecting frame (41), and the protective shell (42) is fixedly connected to the center of the connecting frame (41).

9. The corrosion-resistant and insulating plastic pipe according to claim 8, characterized in that: The plastic tube (10) also includes an inner tube (43) and an interface frame (44). The inner tube (43) is sleeved in the center of the protective shell (42), and the left and right sides of the inner tube (43) are fixedly connected to the interface frame (44).

10. A process for preparing corrosion-resistant and insulating plastic pipes, using the apparatus for preparing corrosion-resistant and insulating plastic pipes as described in any one of claims 1-7, characterized in that, It includes the following steps: S1. First, connect the feed pipe (4) to the external feed pipe so that the plastic particles reach the inside of the feed pipe (4). By opening the heating seat (3), the inside of the feed pipe (4) is heated so that the plastic particles inside the feed pipe (4) are heated. Then drive the motor (5). The motor (5) can drive the rotating shaft (1) to rotate so that the material is transported along the molten material of the rotating shaft (1). Through the gap between the rotating shaft (1) and the feed pipe (4), the molding and extrusion are performed to form a tube structure. S2. Then the first motor (11) drives the threaded rod (14) to rotate, which acts on the displacement frame (13), the second motor (15), the pressing frame (16), and the docking plate (17), so that the docking plate (17) docks with the feed pipe (4). Through the control of the pressing frame (16), the plastic tube (10) is pressed. At the same time, the hydraulic cylinder (23) is driven to dock the channel frame (21) with the docking plate (17). The old tube in the channel frame (21) is connected with the plastic tube (10). Through the pressing of the pressing frame (16), the connection between them is realized. The third motor (24) is driven. The third motor (24) drives the drive wheel (27) to rotate, thereby driving the plastic tube (10) and the old tube to move, realizing the docking and pulling work. S3. Then the plastic tube (10) reaches the position of the push wheel (38). The push wheel (38) rotates to drive the plastic tube (10) to move. At the same time, the conduit (32) supplies water to the water tank (33). The water is transmitted to the pressurized nozzle (36) through the branch pipe (34) and the pressurized seat (35). The pressurized nozzle (36) sprays water to achieve the curing and cooling of the plastic tube (10) and complete the production purpose of the plastic tube (10).

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