UHMWPE high-strength polyethylene pipe and preparation method thereof

Abstract

The invention discloses a UHMWPE high-strength polyethylene pipe and a preparation method thereof.One side of a machine tool is detachably connected with a smearing frame, the interior of the smearing frame is detachably connected with a blocking mechanism, the smearing frame is detachably connected with a through pipe, the input end of the through pipe is connected into a top pipe, the top pipe is inserted into a storage bin, and the storage bin is detachably connected with the through pipe. One end of the storage bin is detachably connected to a second air cylinder, the output end of the second air cylinder is detachably connected with a first electric roller, and the first electric roller is in lap joint with the pipe body. A prepared ultra-high molecular weight polyethylene pipe is placed on a moving frame, a second air cylinder moves downwards when a pipe body moves to the position of a first electric roller, the second air cylinder moves downwards when the first electric roller drives the pipe body to move, and high-toughness polyurethane is smeared on the outer surface of the pipe body when the pipe body passes through a smearing frame; and therefore, a protective layer is formed after the high-toughness polyurethane is cooled, and the strength of the pipe main body is improved.

Description

Technical Field

[0001] The present application relates to the technical field of soil remediation, and in particular to a UHMWPE high-strength polyethylene pipe and a preparation method thereof. Background Art

[0002] Ultra-high molecular weight polyethylene (UHMW-PE) is a thermoplastic engineering plastic with an average molecular weight greater than 1.5 million, which is polymerized by ethylene and butadiene monomers under the action of a catalyst. The comprehensive performance of this material can work for a long time under the conditions of -269 to +80℃, and it is called "amazing" engineering plastics. The ultra-high molecular weight polyethylene engineering plastic (UHMW---PE) pipeline technology is becoming more and more mature in my country, and more and more projects are using this pipeline. Ultra-high molecular weight polyethylene pipes are made by slurry process, and can use Mg-Ti high-efficiency catalysts for intermittent polymerization. Long-term operation does not require kettle cleaning, and the polymerization product can reach a relatively high molecular weight, with characteristic viscosity > 2200ml / g, density 0.935-0.945g / ml, bulk density 0.35-0.4g / ml, impact strength ≥150KJ / square meter, tensile strength 30-40MPa, elongation at break 300-400%, and water content less than 0.2%. It is an excellent thermoplastic engineering plastic with outstanding mechanical properties such as impact resistance, wear resistance, and self-lubrication. It can be used in papermaking machinery, textile equipment, chemical machinery, material transportation departments, food machinery, cultural and sports equipment, and high-strength modulus fibers.

[0003] Pipes made of ultra-high molecular weight polyethylene are more wear-resistant and their overall service life has been improved, but ultra-high molecular weight polyethylene pipes have low strength and are prone to breakage during laying. After long-term use, the pipes may also be damaged by external forces. Summary of the invention

[0004] One of the purposes of the present application is to provide a UHMWPE high-strength polyethylene pipe and a preparation method thereof.

[0005] To achieve the above objectives, the technical solution adopted in the present application is: a UHMWPE high-strength polyethylene pipe, comprising an ultra-high molecular polyethylene pipe, wherein a high-strength and tough polyurethane layer is laid on the outer surface of the ultra-high molecular polyethylene pipe.

[0006] To achieve the above purpose, another technical solution adopted in the present application is: a method for preparing UHMWPE high-strength polyethylene pipes, including a connecting pipe, a machine tool, a pipe body, a movable frame, a first electric roller, a second electric roller, a first cylinder and a second cylinder, one side of the machine tool is detachably connected with a coating rack, a blocking mechanism is detachably connected inside the coating rack, a through pipe is detachably connected on the coating rack, an input end of the through pipe is connected to a top pipe, the top pipe is inserted in a storage bin, one end of the storage bin is detachably connected to the second cylinder, an output end of the second cylinder is detachably connected with the first electric roller, and the first electric roller is overlapped on the pipe body.

[0007] Preferably, the jacking pipe is detachably connected in the sealing cover, the jacking pipes are respectively arranged on both sides of the sealing cover, the jacking pipes on each side are arranged in an arc shape, there is a space between the jacking pipes on both sides, and a limiting frame is arranged on the sealing cover outside the jacking pipe, and the limiting frame is detachably connected to the machine tool.

[0008] Preferably, an inner plate is provided in the output port where the storage bin is connected to the top pipe, and rotating rods are rotatably connected to the output ports of the storage bin on both sides of the inner plate, and a baffle is rotatably connected to the rotating rods on each side, and the inner plate is arranged in a T-shape as a whole, and one end of the baffle overlaps the bending position of the inner plate.

[0009] Preferably, the baffle plate has the same shape as the top pipe, the top pipe is inserted into the storage bin output port corresponding to the baffle plate, the baffle plate of the storage bin is detachably connected with a counterweight block, the counterweight block is arranged at the edge of the baffle plate, the counterweight block is spherical as a whole, and the weight of the counterweight blocks on both sides is the same.

[0010] Preferably, a fixing frame is detachably connected to the side wall of the storage bin, one end of the fixing frame is slidably connected to the machine tool, the fixing frame is vertically arranged on the machine tool, a sealing seat is slidably connected in the storage bin to which the fixing frame is connected, and one end of the sealing seat is detachably connected to the output end of the first cylinder.

[0011] Preferably, the coating rack is arranged in an annular shape as a whole, the interior of the coating rack is hollow, a side frame is arranged on the outside of the coating rack, and one end of the side frame is detachably connected to the machine tool.

[0012] Preferably, the blocking mechanism includes an inner seat, which is arranged inside the smear rack, and a guide rod is provided on the inner seat, a first spring is sleeved on the guide rod, a conical seat is slidably connected to the guide rod, and a circular discharge port is opened on the inner wall of the smear rack corresponding to the conical seat.

[0013] Preferably, the guide rod is vertically arranged on the inner seat, the guide rod is coaxially arranged with the discharge port on the smear rack, and the diameter of the guide rod is smaller than the diameter of the discharge port.

[0014] Preferably, the small end of the conical seat faces the discharge port, the large end of the conical seat has a diameter larger than the discharge port, the small end of the conical seat has a diameter smaller than the discharge port, and the first spring is located on the guide rod between the conical seat and the inner seat.

[0015] Compared with the prior art, the beneficial effects of this application are:

[0016] The UHMWPE high-strength polyethylene pipe and its preparation method are as follows: the prepared ultra-high molecular weight polyethylene pipe is placed on a moving frame of a machine tool, the pipe body can be transported with the movement of the moving frame, the second cylinder is started when the pipe body is transported to the position of the first electric roller, the second cylinder drives the first electric roller to move toward the position of the pipe body, the first electric roller is placed on the pipe body, a storage bin is connected to the second cylinder, the storage bin can be driven by the second cylinder to move downward, the output port of the storage bin will move toward the jacking pipe position, the position of the jacking pipe remains unchanged during the downward movement of the storage bin, the baffle of the storage bin will be pushed open by the jacking pipe as it moves downward, the jacking pipe will be connected with the storage bin, a sealing cover is arranged on the outer side of the jacking pipe, the sealing cover It will be wrapped around the outside of the output port of the storage bin at the same time, and the sealing cover can achieve sealing when the top pipe is connected to the storage bin. When the first electric roller drives the pipe body to move, the pipe body can move into the coating rack. The first cylinder can be started before the pipe body passes through the coating rack. The first cylinder can drive the sealing seat to move into the storage bin, and the high-strength and tough polyurethane in the storage bin can move into the coating rack. The pipe body can be coated after passing through the coating rack. During the coating process, the second electric roller is started, and the second electric roller can drive the pipe body to rotate, so that the high-strength and tough polyurethane is evenly coated on the outer wall of the pipe body. After cooling, the high-strength and tough polyurethane forms a high-strength polyurethane layer, thereby improving the strength of the ultra-high molecular weight polyethylene pipe.

[0017] The UHMWPE high-strength polyethylene pipe and its preparation method are characterized in that the coating frame is hollow inside, and when the coating frame is hollow inside, high-strength polyurethane can be injected inside the coating frame, and a discharge port is provided on the coating frame, so that the discharge port can realize the discharge of high-strength polyurethane, an inner seat is provided inside the coating frame, a guide rod is installed on the inner seat, a conical seat is installed on the guide rod, and the conical seat can move along the guide rod, and the conical seat can move to the discharge port position, and when the conical seat moves to the inside of the discharge port, the conical seat will not completely enter the discharge port, and the conical seat and the discharge port are directly connected. The position with the same diameter will be stuck in the discharge port, thereby blocking the discharge port. When the pipe body passes through the smear rack, the conical seat will be squeezed, and the conical seat will move into the smear rack. A gap will be formed between the conical seat and the discharge port, so that the high-strength and tough polyurethane can be discharged through the discharge port. By sleeved the first spring on the guide rod, the first spring can push the conical seat in the opposite direction, and the conical seat can return to its original position without being pushed by the pipe body, thereby blocking the discharge port again, and the high-strength and tough polyurethane will not be continuously discharged, thereby avoiding material waste and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 .

[0019] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 .

[0020] Figure 3 It is a schematic diagram of the structure of the fixing frame in the present invention.

[0021] Figure 4 It is a structural schematic diagram of the side frame in the present invention.

[0022] Figure 5 It is a schematic diagram of the enlarged structure of area A in the present invention.

[0023] Figure 6 It is a schematic diagram of the enlarged structure of area B in the present invention.

[0024] Figure 7 It is a schematic diagram of the enlarged structure of the C region in the present invention.

[0025] In the figure: 1. machine tool; 2. first electric roller; 3. storage bin; 4. through pipe; 5. coating rack; 6. second electric roller; 7. pipe body; 8. moving rack; 9. sealing seat; 10. first cylinder; 11. second cylinder; 12. limiting rack; 13. sealing cover; 14. rotating rod; 15. connecting pipe; 16. top pipe; 17. fixed rack; 18. baffle; 19. inner plate; 20. counterweight; 21. side frame; 22. blocking mechanism; 221. inner seat; 222. first spring; 223. guide rod; 224. discharge port; 225. conical seat. DETAILED DESCRIPTION

[0026] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] like Figures 1 to 7 As shown, the present invention provides a UHMWPE high-strength polyethylene pipe, wherein a high-strength and tough polyurethane layer is laid on the outer surface of the ultra-high molecular polyethylene pipe.

[0028] like Figures 1 to 7 As shown, the present invention provides a method for preparing a UHMWPE high-strength polyethylene pipe, which is applied to the pipe in claim 1, including a connecting pipe 15, a machine tool 1, a pipe body 7, a movable frame 8, a first electric roller 2, a second electric roller 6, a first cylinder 10 and a second cylinder 11, one side of the machine tool 1 is detachably connected with a coating rack 5, the coating rack 5 is detachably connected with a blocking mechanism 22, the coating rack 5 is detachably connected with a through pipe 4, the input end of the through pipe 4 is connected to a jacking pipe 16, the jacking pipe 16 is inserted in a storage bin 3, one end of the storage bin 3 is detachably connected to the second cylinder 11, the output end of the second cylinder 11 is detachably connected with the first electric roller 2, and the first electric roller 2 is overlapped on the pipe body 7. The prepared ultra-high molecular weight polyethylene pipe is placed on the movable rack 8. When the pipe body 7 moves to the position of the first electric roller 2, the second cylinder 11 moves downward. When the first electric roller 2 drives the pipe body 7 to move, the second cylinder 11 moves downward. When the pipe body 7 passes through the coating rack 5, the outer surface of the pipe body 7 will be coated with high-strength polyurethane, so that the high-strength polyurethane will form a protective layer after cooling, thereby improving the strength of the pipe body 7.

[0029] The jacking pipe 16 is detachably connected in the sealing cover 13. The jacking pipe 16 is respectively arranged on both sides of the sealing cover 13. The jacking pipe 16 on each side is arranged in an arc shape. There is a space between the jacking pipes 16 on both sides. The sealing cover 13 outside the jacking pipe 16 is provided with a limit frame 12, and the limit frame 12 is detachably connected to the machine tool 1. Through the arrangement of the jacking pipe 16, the jacking pipe 16 can push open the baffle 18 and enter the storage bin 3, thereby realizing the flow of materials.

[0030] During implementation, when the pipe body 7 is transported to the position of the first electric roller 2, the second cylinder 11 is started, and the second cylinder 11 will drive the first electric roller 2 to move toward the position of the pipe body 7. The first electric roller 2 can be placed on the pipe body 7. The second cylinder 11 is connected to the storage bin 3, and the storage bin 3 can be driven by the second cylinder 11 to move downward, and the output port of the storage bin 3 will move toward the position of the jacking pipe 16. During the downward movement of the storage bin 3, the position of the jacking pipe 16 remains stationary. As the storage bin 3 moves downward, the baffle 18 of the storage bin 3 will be pushed open by the jacking pipe 16, and the jacking pipe 16 will be connected to the storage bin 3. A sealing cover 13 is arranged on the outside of the jacking pipe 16, and the sealing cover 13 will be wrapped around the outside of the output port of the storage bin 3 at the same time, so that the sealing cover 13 can be realized. For the sealing when the top pipe 16 is connected to the storage bin 3, when the first electric roller 2 drives the pipe body 7 to move, the pipe body 7 can move into the coating rack 5, and the first cylinder 10 can be started before the pipe body 7 passes through the coating rack 5. The first cylinder 10 can drive the sealing seat 9 to move into the storage bin 3, and the high-strength and tough polyurethane in the storage bin 3 can move into the coating rack 5. The pipe body 7 can be coated after passing through the coating rack 5. During the coating process, the second electric roller 6 is started, and the second electric roller 6 can drive the pipe body 7 to rotate, so that the high-strength and tough polyurethane is evenly coated on the outer wall of the pipe body 7. After cooling, the high-strength and tough polyurethane forms a high-strength polyurethane layer, thereby improving the strength of the ultra-high molecular weight polyethylene pipe.

[0031] An inner plate 19 is provided inside the output port where the storage bin 3 is connected to the top pipe 16, and the output ports of the storage bin 3 on both sides of the inner plate 19 are rotatably connected to the rotating rods 14, and the baffles 18 are rotatably connected to the rotating rods 14 on each side, and the inner plate 19 is arranged in a T shape as a whole, and one end of the baffle 18 overlaps the bent position of the inner plate 19. The output ports can be separated by the inner plate 19, and the top pipe 16 can be inserted into the corresponding storage bin 3, thereby pushing open the corresponding baffles 18.

[0032] The baffle 18 has the same shape as the top pipe 16. The top pipe 16 is inserted into the output port of the storage bin 3 corresponding to the baffle 18. The baffle 18 of the storage bin 3 is detachably connected with a counterweight 20. The counterweight 20 is arranged at the edge of the baffle 18. The counterweight 20 is arranged in a spherical shape as a whole, and the weights of the counterweights 20 on both sides are the same. After the storage bin 3 is reset and separated from the top pipe 16 by the arrangement of the counterweight 20, the baffle 18 will be reset by the gravity of the counterweight 20, and the baffle 18 can block the output port of the storage bin 3 again under the restriction of the inner plate 19.

[0033] A fixing frame 17 is detachably connected to the side wall of the storage bin 3, one end of which is slidably connected to the machine tool 1, and the fixing frame 17 is vertically arranged on the machine tool 1. A sealing seat 9 is slidably connected to the storage bin 3 connected to the fixing frame 17, and one end of the sealing seat 9 is detachably connected to the output end of the first cylinder 10. The support and position limitation of the storage bin 3 can be achieved by setting the fixing frame 17.

[0034] The coating rack 5 is arranged in an annular shape as a whole, and the interior of the coating rack 5 is hollow. A side frame 21 is arranged outside the coating rack 5, and one end of the side frame 21 is detachably connected to the machine tool 1. The coating rack 5 can be used to store materials, and the materials can be stored inside the coating rack 5 first.

[0035] The blocking mechanism 22 includes an inner seat 221, which is arranged inside the smear rack 5, and a guide rod 223 is arranged on the inner seat 221, and a first spring 222 is sleeved on the guide rod 223, and a conical seat 225 is slidably connected to the guide rod 223, and a circular discharge port 224 is opened on the inner wall of the smear rack 5 corresponding to the conical seat 225. The discharge port 224 can be blocked and released through the movement of the conical seat 225, thereby limiting the material, and the material will not be continuously discharged.

[0036] The guide rod 223 is vertically arranged on the inner seat 221, and the guide rod 223 is coaxially arranged with the discharge port 224 on the smear rack 5, and the diameter of the guide rod 223 is smaller than the diameter of the discharge port 224. The guide rod 223 can guide the conical seat 225, thereby preventing the conical seat 225 from deflecting.

[0037] The small end of the conical seat 225 faces the discharge port 224, the large end of the conical seat 225 has a diameter greater than the diameter of the discharge port 224, and the small end of the conical seat 225 has a diameter less than the diameter of the discharge port 224. The first spring 222 is located on the guide rod 223 between the conical seat 225 and the inner seat 221. The conical seat 225 can be reset by the first spring 222.

[0038] In practice, by opening a discharge port 224 on the smear rack 5, the discharge port 224 can realize the discharge of high-toughness polyurethane, and an inner seat 221 is arranged inside the smear rack 5, and a guide rod 223 is installed on the inner seat 221, and a conical seat 225 is installed on the guide rod 223. The conical seat 225 can move along the guide rod 223, and the conical seat 225 can move toward the position of the discharge port 224. When the conical seat 225 moves to the inside of the discharge port 224, the conical seat 225 will not completely enter the discharge port 224, and the position where the conical seat 225 and the discharge port 224 have the same diameter will be stuck in the discharge port 224, thereby realizing the discharge port 224. When the pipe body 7 passes through the smear rack 5, the conical seat 225 is squeezed, and the conical seat 225 moves into the smear rack 5. A gap is formed between the conical seat 225 and the discharge port 224, so that the high-strength and tough polyurethane is discharged through the discharge port 224. By sleeved the first spring 222 on the guide rod 223, the first spring 222 can push the conical seat 225 in the opposite direction, and the conical seat 225 can return to its original position without being pushed by the pipe body 7, thereby blocking the discharge port 224 again, and the high-strength and tough polyurethane will not be continuously discharged, thereby avoiding material waste and saving costs.

[0039] The working principle of the present invention is as follows: the manufactured ultra-high molecular weight polyethylene pipe is placed on the moving frame 8 of the machine tool 1, and the pipe body 7 can be transported with the movement of the moving frame 8. When the pipe body 7 is transported to the position of the first electric roller 2, the second cylinder 11 is started, and the second cylinder 11 drives the first electric roller 2 to move toward the position of the pipe body 7. The first electric roller 2 is placed on the pipe body 7. The second cylinder 11 is connected with the storage bin 3, and the storage bin 3 can be driven by the second cylinder 11 to move downward, and the output port of the storage bin 3 will move toward the position of the jacking pipe 16. During the downward movement of the storage bin 3, the position of the jacking pipe 16 remains stationary. As the storage bin 3 moves downward, the baffle 18 of the storage bin 3 will be pushed open by the jacking pipe 16, and the jacking pipe 16 will be connected to the storage bin 3. A sealing cover 13 is arranged on the outside of the jacking pipe 16. The sealing cover 13 It will be wrapped around the outer side of the output port of the storage bin 3 at the same time, and the sealing cover 13 can realize the sealing when the top pipe 16 is connected to the storage bin 3. When the first electric roller 2 drives the pipe body 7 to move, the pipe body 7 can move into the coating rack 5, and the first cylinder 10 can be started before the pipe body 7 passes through the coating rack 5. The first cylinder 10 can drive the sealing seat 9 to move into the storage bin 3, and the high-strength and tough polyurethane in the storage bin 3 can move into the coating rack 5. The pipe body 7 can be coated after passing through the coating rack 5. During the coating process, the second electric roller 6 is started, and the second electric roller 6 can drive the pipe body 7 to rotate, so that the high-strength and tough polyurethane is evenly coated on the outer wall of the pipe body 7. After cooling, the high-strength and tough polyurethane forms a high-strength polyurethane layer, thereby improving the strength of the ultra-high molecular weight polyethylene pipe.

[0040] By setting the smear rack 5, the smear rack 5 is hollow. When the interior of the smear rack 5 is hollow, high-toughness polyurethane can be injected into the interior of the smear rack 5. By opening a discharge port 224 on the smear rack 5, the discharge port 224 can realize the discharge of high-toughness polyurethane. An inner seat 221 is arranged inside the smear rack 5, and a guide rod 223 is installed on the inner seat 221. A conical seat 225 is installed on the guide rod 223. The conical seat 225 can move along the guide rod 223, and the conical seat 225 can move to the position of the discharge port 224. When the conical seat 225 moves to the interior of the discharge port 224, the conical seat 225 will not completely enter the discharge port 224, and the conical seat 225 and the discharge port 224 have the same diameter. The conical seat 225 will be stuck in the discharge port 224, thereby blocking the discharge port 224. When the pipe body 7 passes through the smear rack 5, the conical seat 225 will be squeezed, and the conical seat 225 will move into the smear rack 5. A gap will be formed between the conical seat 225 and the discharge port 224, so that the high-strength and tough polyurethane can be discharged through the discharge port 224. By sleeved the first spring 222 on the guide rod 223, the first spring 222 can push the conical seat 225 in the opposite direction, and the conical seat 225 can return to its original position without being pushed by the pipe body 7, thereby blocking the discharge port 224 again, and the high-strength and tough polyurethane will not be continuously discharged, thereby avoiding material waste and saving costs.

[0041] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A UHMWPE high-strength polyethylene pipe, characterized in that: It comprises an ultra-high molecular polyethylene pipe, the outer surface of which is paved with a high-strength and tough polyurethane layer.

2. A method for preparing a UHMWPE high-strength polyethylene pipe, applied to the pipe described in claim 1, characterized in that: The invention comprises a connecting pipe (15), a machine tool (1), a pipe body (7), a movable frame (8), a first electric roller (2), a second electric roller (6), a first cylinder (10) and a second cylinder (11); a coating frame (5) is detachably connected to one side of the machine tool (1); a blocking mechanism (22) is detachably connected inside the coating frame (5); a through pipe (4) is detachably connected to the coating frame (5); an input end of the through pipe (4) is connected to a top pipe (16); the top pipe (16) is inserted into a storage bin (3); one end of the storage bin (3) is detachably connected to the second cylinder (11); an output end of the second cylinder (11) is detachably connected to the first electric roller (2); and the first electric roller (2) is overlapped on the pipe body (7).

3. The method for preparing a UHMWPE high-strength polyethylene pipe according to claim 2, characterized in that: The jacking pipe (16) is detachably connected in the sealing cover (13); the jacking pipe (16) is respectively arranged on both sides of the sealing cover (13); the jacking pipe (16) on each side is arranged in an arc shape; there is a space between the jacking pipes (16) on both sides; a limiting frame (12) is arranged on the sealing cover (13) outside the jacking pipe (16); the limiting frame (12) is detachably connected to the machine tool (1).

4. The method for preparing a UHMWPE high-strength polyethylene pipe according to claim 2, characterized in that: An inner plate (19) is arranged inside the output port of the storage bin (3) connected to the top pipe (16); rotating rods (14) are rotatably connected to the output ports of the storage bin (3) on both sides of the inner plate (19); a baffle (18) is rotatably connected to the rotating rod (14) on each side; the inner plate (19) is arranged in a T-shape as a whole, and one end of the baffle (18) overlaps the bent position of the inner plate (19).

5. The method for preparing a UHMWPE high-strength polyethylene pipe according to claim 4, characterized in that: The baffle (18) has the same shape as the top pipe (16); the top pipe (16) is plugged into the output port of the storage bin (3) corresponding to the baffle (18); a counterweight (20) is detachably connected to the baffle (18) of the storage bin (3); the counterweight (20) is arranged at the edge of the baffle (18); the counterweight (20) is spherical as a whole, and the counterweights (20) on both sides have the same weight.

6. The method for preparing a UHMWPE high-strength polyethylene pipe according to claim 2, characterized in that: A fixing frame (17) is detachably connected to the side wall of the storage bin (3), one end of the fixing frame (17) is slidably connected to the machine tool (1), and the fixing frame (17) is vertically arranged on the machine tool (1). A sealing seat (9) is slidably connected in the storage bin (3) connected to the fixing frame (17), and one end of the sealing seat (9) is detachably connected to the output end of the first cylinder (10).

7. The method for preparing a UHMWPE high-strength polyethylene pipe according to claim 2, characterized in that: The smear rack (5) is arranged in an annular shape as a whole, the interior of the smear rack (5) is arranged hollow, a side frame (21) is arranged on the outside of the smear rack (5), and one end of the side frame (21) is detachably connected to the machine tool (1).

8. The method for preparing a UHMWPE high-strength polyethylene pipe according to claim 2, characterized in that: The blocking mechanism (22) comprises an inner seat (221), the inner seat (221) being arranged inside the smear rack (5), a guide rod (223) being arranged on the inner seat (221), a first spring (222) being sleeved on the guide rod (223), a conical seat (225) being slidably connected to the guide rod (223), and a circular discharge port (224) being provided on the inner wall of the smear rack (5) corresponding to the conical seat (225).

9. The method for preparing a UHMWPE high-strength polyethylene pipe according to claim 8, characterized in that: The guide rod (223) is vertically arranged on the inner seat (221), the guide rod (223) and the discharge port (224) on the smear rack (5) are coaxially arranged, and the diameter of the guide rod (223) is smaller than the diameter of the discharge port (224).

10. The method for preparing a UHMWPE high-strength polyethylene pipe according to claim 8, characterized in that: The small end of the conical seat (225) faces the discharge port (224), the large end of the conical seat (225) has a diameter greater than the diameter of the discharge port (224), the small end of the conical seat (225) has a diameter less than the diameter of the discharge port (224), and the first spring (222) is located on the guide rod (223) between the conical seat (225) and the inner seat (221).

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