Wear-resistant plastic and preparation method thereof

Abstract

The invention discloses wear-resistant plastic and a preparation method thereof, and relates to the field of plastic preparation, and the preparation method comprises the following steps: S1, pouring polyurethane resin, an emulsifier, a wear-resistant agent, an antioxidant and a plasticizer into a stirring device, and mixing and stirring; s2, heating the bottom of the stirring cavity of the stirring device in the step S1 at the heating temperature of 80-100 DEG C for 1 hour, and adding water for stirring and mixing to obtain a sticky molten material; s3, the molten material in the S2 is fed into an extruder, the heating temperature of the extruder is 120 DEG C, and a long-strip-shaped plastic rough blank is obtained; s4, the plastic rough blank in the S3 is fed into a compression molding machine, compression molding is conducted on the surface of the plastic rough blank, and a blocky plastic product is obtained; through the stirring device, raw materials can be uniformly stirred, the problem that a traditional brush easily causes raw material accumulation is solved, and the cleaning convenience of the stirring tank is improved, so that the effects of uniform stirring and convenient cleaning are achieved, and the discharge amount of the raw materials is ensured.

Description

Technical Field

[0001] The invention relates to the field of plastic preparation, in particular to wear-resistant plastic and a preparation method thereof. Background Art

[0002] ‌‌‌‌Wear-resistant plastic is a plastic material with excellent wear resistance. It is usually used in application scenarios that need to resist wear and friction. Wear-resistant plastic has significantly improved its wear resistance by adding highly wear-resistant carbon black, molybdenum disulfide and other materials, and can maintain its performance and life in various harsh environments.

[0003] When preparing plastics, the raw materials need to be sent into a mixing tank for mixing. Since the raw materials used to make plastics have a certain viscosity, the inside of the mixing tank is prone to wall hanging. The existing Chinese public patent document: CN218928298U discloses a special mixing device for preparing silicon carbide wear-resistant plastic. Through the cooperation between the mixing device body, the brush, the rotating rod and the column, the setting of the brush is used to achieve the cleaning effect on the inside of the mixing device body, and the effect of preventing the material from hanging on the wall is achieved, which effectively solves the problem of the material adhering to the inside of the mixing device body. The method of using a brush to clean the wall hanging material replaces the method of the staff opening the sealed top cover to clean the wall hanging material, thereby reducing the waste of wall hanging material. However, a large amount of raw material residue will still be stuck on the brush and the stirring rod, which is easy to cause the raw material to accumulate on the outside of the brush and the stirring rod, making it difficult to discharge a specified amount of material, and the raw material has a high viscosity, which is more troublesome to clean up later. Summary of the invention

[0004] The purpose of the present invention is to provide a wear-resistant plastic and a preparation method thereof, which can uniformly stir the raw materials and scrape out the raw materials stuck on the inner side of the mixing tank through a scraper, thereby solving the problem that traditional brushes easily cause raw material accumulation. In addition, when the sealing top cover is away from the mixing tank, the scraper can be kept away from the inner side of the mixing tank to prevent the raw materials on the scraper from sticking back to the inner side of the mixing tank, thereby improving the convenience of cleaning the mixing tank.

[0005] To achieve the above object, the present invention provides the following technical solutions: A method for preparing a wear-resistant plastic comprises the following steps: S1, pouring polyurethane resin, emulsifier, wear-resistant agent, antioxidant and plasticizer into a stirring device, and mixing and stirring; S2, heating the bottom of the stirring chamber of the stirring device in S1 at a temperature of 80-100° C. for 1 h, and adding water and stirring to obtain a viscous molten material; S3, feeding the molten material in S2 into an extruder, the heating temperature of the extruder is 120° C., and obtaining a long strip of plastic rough blank; S4, feeding the plastic blank in S3 into a compression molding machine, compression molding the surface of the plastic blank to obtain a wear-resistant plastic.

[0006] Preferably, the stirring device comprises a stirring tank, a sealed top cover is provided on the top of the sealing top cover, a top frame is provided on the top of the sealing top cover, electric telescopic rods are fixedly installed at both ends of the top frame, so that the top frame can pull the sealed top cover away from the stirring tank, a base located below the stirring tank is fixedly installed between the two electric telescopic rods, a heating seat located at the bottom of the stirring tank is fixedly installed on the top of the base for heating the stirring tank, a discharge valve is fixedly installed at the bottom of the stirring tank, a mounting box is fixedly installed on the top of the sealing top cover, a motor is fixedly installed on the top of the mounting box, a rotating rod extending to the inside of the stirring tank is provided on the inner side of the mounting box, and multiple rotating rods are fixedly installed on the outer side of the rotating rod. The stirring rod is symmetrically distributed in the center, and four scrapers are symmetrically distributed in the center are arranged on the outside of the stirring tank. A mounting rod is installed on the side of the scraper close to the stirring rod, and a mounting cylinder docked with the mounting rod is arranged on the outside of the rotating rod, so that when the rotating rod rotates, the scraper can be driven by the mounting rod to move along the inner side of the stirring tank to scrape out the raw materials hanging on the wall. The output end of the motor is fixedly installed with a gear 1 located inside the mounting box, and a gear 2 matching with the gear 1 is arranged on the outside of the rotating rod. The motor drives the rotating rod to rotate through the gear 1 and the gear 2. The bottom of the sealing top cover is also provided with a longitudinal scraping component for improving the scraping efficiency, and the inside of the rotating rod is also provided with a plate taking component for facilitating the removal of the scraper.

[0007] Preferably, the longitudinal scraping assembly includes a fixed cylinder fixedly mounted on the bottom of the sealing top cover, a fixed disk fixedly mounted on the inner side of the fixed cylinder is provided with a fixed disk fixedly mounted on the bottom of the sealing top cover, the rotating rod slides through the fixed disk, a rotating disk located on the inner side of the fixed cylinder is fixedly mounted on the outer side of the rotating rod, the rotating rod can drive the rotating disk to rotate synchronously, a plurality of hemispheres symmetrically distributed in the center are fixedly mounted on the top of the rotating disk, a spherical groove 1 is provided at the bottom of the fixed disk for limiting and plugging of the hemispheres, the outer side of the spherical groove 1 is an arc-shaped structure, a guide ring is fixedly mounted on the outer side of the fixed disk, and the outer side of the guide ring is aligned with the The inner side of the fixed cylinder is in contact with each other to improve the stability of the rotation of the turntable and the rotating rod. A spring is fixedly installed between the top of the guide ring and the inner side of the top of the fixed cylinder. When the hemisphere is aligned with the spherical groove, the spring can pull the turntable and the rotating rod to insert the hemisphere into the spherical groove. A mounting ring is fixedly installed at the bottom of the gear 2. The mounting ring is rotatably installed on the inner side of the mounting box. A plurality of positioning blocks symmetrically distributed in the center are fixedly installed on the inner side of the mounting ring. A long groove for limiting the sliding of the positioning block is opened on the outer side of the rotating rod, so that when the rotating rod moves, the long groove can move along the positioning block.

[0008] Preferably, the plate-taking assembly includes a sliding block fixedly mounted on the outer side of the mounting cylinder, a sliding cavity for limiting the sliding movement of the mounting cylinder and the sliding block is provided on the inner side of the rotating rod, a spring 2 is fixedly mounted between the sliding block and the inner side of the sliding cavity, a ball is fixedly mounted on the side of the mounting cylinder away from the mounting rod, the interior of the rotating rod is a hollow structure, a push rod is provided inside the rotating rod, and a spherical groove 2 for limiting the insertion of the ball is provided on the outer side of the push rod, when the push rod moves, the ball can be inserted into the push rod, and the rebound force of the spring 2 is utilized to enable the mounting cylinder to pull the scraper away from the inner side of the mixing tank through the mounting rod, a rhombus column is fixedly mounted on the outer side of the push rod, and the rotating The inner side of the rod is provided with a diamond-shaped cavity for the diamond-shaped column to limit the sliding of the diamond-shaped column. The diamond-shaped column is made of a magnetic material, which is convenient for the rotating rod to drive the push rod to move synchronously. The top end of the push rod slides and extends to the outside of the installation box. The top of the top frame is provided with a sliding hole for the push rod to limit the sliding of the push rod. A fixed block in contact with the top of the top frame is fixedly installed on the outside of the push rod. The fixed block can be driven to move by the top frame to realize the movement of the push rod. Two symmetrically distributed top plates are arranged above the top frame, and two support rods that slide through the top frame are fixedly installed between the bottom of the top plate and the top of the sealing top cover. When the top frame contacts the top plate, the sealing top cover can be pulled away from the mixing tank.

[0009] Preferably, a sealing ring is fixedly mounted on the bottom of the sealing top cover, and the outer side of the sealing ring contacts the inner side of the stirring tank, thereby improving the sealing performance between the sealing top cover and the stirring tank.

[0010] Preferably, a feeding valve is fixedly installed on the top of the sealing top cover to facilitate the replenishment of raw materials.

[0011] Preferably, both ends of the mounting rod are provided with external threads matching with the mounting tube, and the scraper is butted with the end of the mounting rod away from the mounting tube through a positioning tube, so as to facilitate disassembly and cleaning of the scraper and the mounting rod.

[0012] Preferably, the stirring rods and the mounting rods are staggered to improve the uniformity of raw material stirring.

[0013] Preferably, a sleeve is slidably mounted on the outer side of the mounting tube, and the sleeve is fixedly mounted on the outer side of the rotating rod, so as to improve the stability of the movement of the mounting tube.

[0014] The invention discloses a wear-resistant plastic, which is obtained according to a preparation method of the wear-resistant plastic.

[0015] The above embodiments of the present invention can achieve the following beneficial effects: The present invention can uniformly stir the raw materials through the stirring device, and scrape out the raw materials stuck on the inner side of the stirring tank through the scraper, thereby solving the problem that the traditional brush easily causes the raw materials to accumulate. Moreover, when the sealing top cover is away from the stirring tank, the scraper can be kept away from the inner side of the stirring tank to prevent the raw materials on the scraper from sticking back to the inner side of the stirring tank, thereby improving the convenience of cleaning the stirring tank, thereby achieving the effects of uniform stirring and easy cleaning, and ensuring the discharge amount of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the transfer rod and the stirring rod in the present invention; Figure 3 It is a schematic diagram of the installation rod and scraper structure in the present invention; Figure 4 It is a schematic diagram of the installation box and the sealing top cover structure of the present invention; Figure 5 It is a schematic diagram of the structure of the mounting ring and the fixing cylinder in the present invention; Figure 6 It is a schematic diagram of the structure of the fixed disk and the rotating disk in the present invention; Figure 7 It is a schematic diagram of the structure of the fixing block and the top plate in the present invention; Figure 8 It is a schematic diagram of the structure of the abutting ball and the abutting rod in the present invention.

[0017] In the figure: 1. mixing tank; 2. sealing top cover; 3. top frame; 4. electric telescopic rod; 5. base; 6. heating seat; 7. discharge valve; 8. installation box; 9. motor; 10. rotating rod; 11. stirring rod; 12. scraper; 13. installation rod; 14. installation cylinder; 15. gear one; 16. gear two; 17. fixed cylinder; 18. fixed plate; 19. rotating plate; 20. hemisphere; 21. guide ring; 22. spring one; 23. installation ring; 24. positioning block; 25. slider; 26. spring two; 27. ball; 28. rod; 29. ​​diamond column; 30. fixed block; 31. top plate; 32. support rod; 33. sealing ring; 34. feeding valve; 35. positioning cylinder; 36. sleeve. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Please refer to Figure 1-Figure 7, a method for preparing a wear-resistant plastic shown in the figure comprises the following steps: S1, pouring polyurethane resin, emulsifier, wear-resistant agent, antioxidant and plasticizer into a stirring device, and mixing and stirring; S2, heating the bottom of the stirring chamber of the stirring device in S1 at a temperature of 80-100° C. for 1 h, and adding water and stirring to obtain a viscous molten material; S3, feeding the molten material in S2 into an extruder, the heating temperature of the extruder is 120° C., and obtaining a long strip of plastic rough blank; S4, feeding the plastic blank in S3 into a compression molding machine, compression molding the surface of the plastic blank to obtain a wear-resistant plastic.

[0020] The stirring device comprises a stirring tank 1, a sealed top cover 2 is arranged on the top of the stirring tank 1, a top frame 3 is arranged on the top of the sealed top cover 2, electric telescopic rods 4 are fixedly installed on both ends of the top frame 3, so that the top frame 3 can pull the sealed top cover 2 away from the stirring tank 1, a base 5 located below the stirring tank 1 is fixedly installed between the two electric telescopic rods 4, a heating seat 6 located at the bottom of the stirring tank 1 is fixedly installed on the top of the base 5, and is used to heat the stirring tank 1, a discharge valve 7 is fixedly installed at the bottom of the stirring tank 1, a mounting box 8 is fixedly installed on the top of the sealed top cover 2, a motor 9 is fixedly installed on the top of the mounting box 8, a rotating rod 10 extending to the inside of the stirring tank 1 is arranged on the inner side of the mounting box 8, and a plurality of stirring rods 1 symmetrically distributed in the center are fixedly installed on the outer side of the rotating rod 10 1. Four scrapers 12 are arranged on the outside of the mixing tank 1 and are symmetrically distributed. A mounting rod 13 is installed on the side of the scraper 12 close to the mixing rod 11. A mounting tube 14 is arranged on the outside of the rotating rod 10 and is connected to the mounting rod 13. When the rotating rod 10 rotates, the scraper 12 can be driven by the mounting rod 13 to move along the inner side of the mixing tank 1 to scrape out the raw materials hanging on the wall. A gear 15 located inside the mounting box 8 is fixedly installed on the output end of the motor 9. A gear 2 16 matching with the gear 15 is arranged on the outside of the rotating rod 10. The motor 9 drives the rotating rod 10 to rotate through the gear 15 and the gear 2 16. A longitudinal scraping assembly for improving the scraping efficiency is also arranged at the bottom of the sealing top cover 2. A plate taking assembly for facilitating the removal of the scraper 12 is also arranged inside the rotating rod 10. When the motor 9 is running, the gear 15 can drive the gear 2 16 to rotate, and the gear 2 16 can drive the rotating rod 10 to rotate, so that the rotating rod 10 drives the stirring rod 11 to stir and mix the raw materials in the stirring tank 1, and the rotating rod 10 drives the mounting rod 13 to rotate synchronously through the mounting tube 14, so that the mounting rod 13 drives the scraper 12 to move along the inner side of the stirring tank 1, stirs the raw materials close to the inner side of the stirring tank 1, and can push the raw materials hanging on the wall inside the stirring tank 1 downward, thereby solving the problem that the traditional brush easily causes the accumulation of raw materials, thereby achieving the effect of uniform stirring.

[0021] The plate-taking assembly includes a slider 25 fixedly mounted on the outside of the mounting cylinder 14, a sliding cavity for limiting the sliding of the mounting cylinder 14 and the slider 25 is provided on the inner side of the rotating rod 10, a spring 26 is fixedly mounted between the slider 25 and the inner side of the sliding cavity, a ball 27 is fixedly mounted on the side of the mounting cylinder 14 away from the mounting rod 13, the interior of the rotating rod 10 is a hollow structure, a rod 28 is provided inside the rotating rod 10, a spherical groove 2 is provided on the outer side of the rod 28 for limiting the insertion of the ball 27, when the rod 28 moves, the ball 27 can be inserted into the rod 28, and the rebound force of the spring 26 is utilized to enable the mounting cylinder 14 to pull the scraper 12 away from the inner side of the mixing tank 1 through the mounting rod 13, a rhombus column 29 is fixedly mounted on the outer side of the rod 28, and the rotating cylinder 14 can pull the scraper 12 away from the inner side of the mixing tank 1 through the mounting rod 13. A diamond-shaped cavity is provided on the inner side of the rod 10 for limiting the sliding of the diamond-shaped column 29. The diamond-shaped column 29 is made of a magnetic material, which is convenient for the rotating rod 10 to drive the push rod 28 to move synchronously. The top end of the push rod 28 slides and extends to the outside of the installation box 8. A sliding hole is provided on the top of the top frame 3 for limiting the sliding of the push rod 28. A fixed block 30 in contact with the top of the top frame 3 is fixedly installed on the outside of the push rod 28. The fixed block 30 can be driven to move by the top frame 3 to realize the movement of the push rod 28. Two symmetrically distributed top plates 31 are provided above the top frame 3. Two support rods 32 that slide through the top frame 3 are fixedly installed between the bottom of the top plate 31 and the top of the sealing top cover 2. When the top frame 3 contacts the top plate 31, the sealing top cover 2 can be pulled away from the mixing tank 1. During cleaning, the two electric telescopic rods 4 can push the top frame 3 to move upward, and the top frame 3 can pull the supporting rod 28 to move through the fixed block 30, so that the spherical groove 2 on the supporting rod 28 is aligned with the supporting ball 27. By utilizing the resilience of the second spring 26, the second spring 26 pulls the slide block 25 to move along the inner side of the slide cavity, and the slide block 25 drives the mounting cylinder 14 to move synchronously, so that the mounting cylinder 14 inserts the supporting ball 27 into the second spherical groove. At the same time, the mounting cylinder 14 pulls the scraper 12 to move synchronously through the mounting rod 13, so that the scraper 12 is away from the inner side of the mixing tank 1. At this time, the top frame 3 moves upward along the outer side of the support rod 32, so that the top frame 3 contacts the bottom of the top plate 31, and the top frame 3 can pull the sealing top cover 2 away from the mixing tank 1 through the top plate 31 and the support rod 32, so as to open the mixing tank 1, and during the movement of the scraper 12, the sticky raw materials will not return to the inner side of the mixing tank 1 again, thereby improving the convenience of later cleaning.

[0022] The invention discloses a wear-resistant plastic, which is obtained according to a preparation method of the wear-resistant plastic.

[0023] Working principle: First, the staff injects the raw materials into the mixing tank 1, opens the heating seat 6 to heat the raw materials, and starts the two electric telescopic rods 4 to move the top frame 3 downward, and the top frame 3 pushes the sealing top cover 2 to move downward to seal the mixing tank 1. Then, the staff starts the motor 9, and the drive motor 9 drives the gear 2 16 to rotate through the gear 1 15, and the gear 2 16 drives the mounting ring 23 to rotate, so that the positioning block 24 on the inner side of the mounting ring 23 presses against the long groove of the rotating rod 10, driving the rotating rod 10 to rotate, and the rotating rod 10 drives the stirring rod 11 to the mixing tank. 1 is stirred and mixed. At the same time, the rotating rod 10 drives the mounting rod 13 to rotate synchronously through the mounting tube 14, so that the mounting rod 13 drives the scraper 12 to rotate and move along the inner side of the mixing tank 1, stirs the raw materials close to the inner side of the mixing tank 1, and pushes them to the middle position inside the mixing tank 1, so that the raw materials can be evenly stirred, and the scraper 12 can push the raw materials hanging on the wall inside the mixing tank 1 downward to solve the problem of raw materials hanging on the wall. After the stirring is completed, the staff turns off the motor 9 and starts the two electric telescopic rods 4 again, and the electric telescopic rods 4 push the top frame 3 to move upward The top frame 3 is pressed against the bottom of the fixed block 30, so that the top frame 3 pulls the rod 28 to move upward, and the rod 28 drives the rhombus column 29 to move along the rhombus groove of the rotating rod 10, so that the spherical groove 2 on the rod 28 is aligned with the ball 27. By utilizing the rebound force of the spring 26, the spring 26 pulls the slider 25 to move along the inner side of the sliding cavity, and the slider 25 drives the installation cylinder 14 to move synchronously, so that the installation cylinder 14 drives the ball 27 to move synchronously with the installation rod 13, so that the ball 27 is inserted into the spherical groove 2, and the installation cylinder 14 pulls the scraper 12 away from the mixing plate through the installation rod 13. The inner side of the tank 1, at this time, the top frame 3 moves upward along the outer side of the support rod 32, so that the top frame 3 contacts the bottom of the top plate 31, and the top frame 3 can pull the sealing top cover 2 away from the mixing tank 1 through the top plate 31 and the support rod 32. The scraper 12 will not contact the inner side of the mixing tank 1 during the upward movement, preventing the raw materials remaining on the scraper 12 from sticking back to the inner side of the mixing tank 1. Finally, the staff opens the mixing tank 1 and takes out the raw materials, thereby achieving the effect of uniform mixing, and improving the convenience of taking materials and cleaning, ensuring the discharge amount of raw materials.

[0024] Example 2: Please refer to Figure 5-Figure 8, this embodiment further explains the first embodiment. The longitudinal scraping assembly shown in the figure includes a fixed cylinder 17 fixedly mounted on the bottom of the sealing top cover 2. A fixed disk 18 fixedly mounted on the bottom of the sealing top cover 2 is arranged on the inner side of the fixed cylinder 17. The rotating rod 10 slides through the fixed disk 18. A rotating disk 19 located on the inner side of the fixed cylinder 17 is fixedly mounted on the outer side of the rotating rod 10. The rotating rod 10 can drive the rotating disk 19 to rotate synchronously. A plurality of hemispherical bodies 20 distributed symmetrically with respect to the center are fixedly mounted on the top of the rotating disk 19. A spherical groove 1 for limiting and inserting the hemispherical bodies 20 is provided at the bottom of the fixed disk 18. The outer side of the spherical groove 1 is an arc-shaped structure. A guide ring 21 is fixedly mounted on the outer side of the fixed disk 18. The outer side of the guide ring 21 It contacts the inner side of the fixed cylinder 17 to improve the stability of the rotation of the turntable 19 and the rotating rod 10. A spring 22 is fixedly installed between the top of the guide ring 21 and the inner side of the top of the fixed cylinder 17. When the hemisphere 20 is aligned with the spherical groove 1, the spring 22 can pull the turntable 19 and the rotating rod 10 to insert the hemisphere 20 into the spherical groove 1. A mounting ring 23 is fixedly installed at the bottom of the gear 2 16. The mounting ring 23 is rotatably installed on the inner side of the mounting box 8. A plurality of positioning blocks 24 symmetrically distributed in the center are fixedly installed on the inner side of the mounting ring 23. A long groove for limiting the sliding of the positioning block 24 is opened on the outer side of the rotating rod 10, so that when the rotating rod 10 moves, the long groove can move along the positioning block 24.

[0025] In this embodiment, the gear 15 can drive the mounting ring 23 to rotate synchronously. The mounting ring 23 cooperates with the long groove on the rotating rod 10 through the positioning block 24, so that the mounting ring 23 drives the rotating rod 10 to rotate, and the rotating rod 10 drives the rotating disk 19 to rotate synchronously. The hemispherical body 20 on the rotating disk 19 moves along the bottom of the fixed disk 18. When the hemispherical body 20 is aligned with the spherical groove 1 at the bottom of the fixed disk 18, the spring 122 is used to pull the rotating disk 19 upward through the guide ring 21 by the rebound force of the spring 12. The hemispherical body 20 on the rotating disk 19 is moved upward by the guide ring 21. The sphere 20 can be inserted into the spherical groove 1, and the turntable 19 drives the rotating rod 10 to move synchronously, so that the long groove on the rotating rod 10 moves along the outer side of the positioning block 24, that is, with the rotation of the turntable 19, the hemispherical body 20 can be repeatedly inserted into and removed from the spherical groove 1, thereby realizing the up and down reciprocating movement of the rotating rod 10, which is convenient for the stirring rod 11 and the mounting rod 13 to quickly mix the raw materials, and the scraper 12 that moves up and down can shake out the raw materials, thereby improving the scraping efficiency of the scraper 12 for the raw materials stuck to the inner side of the mixing tank 1.

[0026] Example 3: Please refer to Figure 2-Figure 8, this embodiment further explains other embodiments. A sealing ring 33 is fixedly installed at the bottom of the sealing top cover 2 in the figure. The outer side of the sealing ring 33 contacts the inner side of the stirring tank 1 to improve the sealing between the sealing top cover 2 and the stirring tank 1. A feeding valve 34 is fixedly installed on the top of the sealing top cover 2 to facilitate the replenishment of raw materials. Both ends of the mounting rod 13 are provided with external threads that match the mounting cylinder 14. The scraper 12 is connected to the end of the mounting rod 13 away from the mounting cylinder 14 through the positioning cylinder 35, which is convenient for disassembling and cleaning the scraper 12 and the mounting rod 13. The stirring rod 11 and the mounting rod 13 are staggered to improve the uniformity of raw material mixing. A sleeve 36 is slidably installed on the outer side of the mounting cylinder 14. The sleeve 36 is fixedly installed on the outer side of the rotating rod 10 to improve the stability of the movement of the mounting cylinder 14.

[0027] In this embodiment: when the sealing top cover 2 moves downward, the sealing ring 33 can be inserted into the inner side of the mixing tank 1 to improve the sealing between the sealing top cover 2 and the mixing tank 1. The staff can replenish the raw materials in the mixing tank 1 through the feeding valve 34 to improve the convenience of raw material replenishment. When cleaning the scraper 12, the three mounting rods 13 can be rotated synchronously to remove the mounting rods 13 from the corresponding mounting cylinders 14, and then the mounting rods 13 are rotated to rotate off the positioning cylinders 35, so that the mounting rods 13 and the scraper 12 can be disassembled for easy separate cleaning. When the rotating rod 10 rotates, the staggered stirring rods 11 and the mounting rods 13 can fully stir the raw materials in the mixing tank 1 to increase the mixing speed of the raw materials, and the sleeve 36 can increase the supporting force of the mounting cylinder 14 to ensure the stirring strength of the mounting rod 13.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a wear-resistant plastic, characterized in that: The following steps are involved: S1, pouring polyurethane resin, emulsifier, wear-resistant agent, antioxidant and plasticizer into a stirring device, and mixing and stirring; S2, heating the bottom of the stirring chamber of the stirring device in S1 at a temperature of 80-100° C. for 1 h, and adding water and stirring to obtain a viscous molten material; S3, feeding the molten material in S2 into an extruder, the heating temperature of the extruder is 120° C., and obtaining a long strip of plastic rough blank; S4, feeding the plastic blank in S3 into a compression molding machine, compression molding the surface of the plastic blank to obtain a wear-resistant plastic.

2. The method for preparing a wear-resistant plastic according to claim 1, characterized in that: The stirring device comprises a stirring tank (1), wherein a sealed top cover (2) is arranged on the top of the stirring tank (1), a top frame (3) is arranged on the top of the sealed top cover (2), electric telescopic rods (4) are fixedly mounted on both ends of the top frame (3), a base (5) located below the stirring tank (1) is fixedly mounted between the two electric telescopic rods (4), a heating seat (6) located at the bottom of the stirring tank (1) is fixedly mounted on the top of the base (5), a discharge valve (7) is fixedly mounted on the bottom of the stirring tank (1), a mounting box (8) is fixedly mounted on the top of the sealed top cover (2), a motor (9) is fixedly mounted on the top of the mounting box (8), a rotating rod (10) extending into the interior of the stirring tank (1) is arranged on the inner side of the mounting box (8), and the rotating rod (10) is arranged on the inner side of the mounting box (8). A plurality of stirring rods (11) are fixedly mounted on the outside of the rod (10) and are distributed symmetrically in the center. Four scrapers (12) are arranged on the outside of the stirring tank (1). A mounting rod (13) is mounted on the side of the scraper (12) close to the stirring rod (11). A mounting cylinder (14) is arranged on the outside of the rotating rod (10) and is connected to the mounting rod (13). A gear 1 (15) located inside the mounting box (8) is fixedly mounted on the output end of the motor (9). A gear 2 (16) matching with the gear 1 (15) is arranged on the outside of the rotating rod (10). A longitudinal scraping assembly for improving scraping efficiency is also arranged at the bottom of the sealing top cover (2). A plate removal assembly for facilitating the removal of the scraper (12) is also arranged inside the rotating rod (10).

3. The method for preparing a wear-resistant plastic according to claim 2, characterized in that: The longitudinal scraping assembly comprises a fixed cylinder (17) fixedly mounted on the bottom of the sealing top cover (2); a fixed disk (18) fixedly mounted on the bottom of the sealing top cover (2) is arranged on the inner side of the fixed cylinder (17); the rotating rod (10) slides through the fixed disk (18); a rotating disk (19) located on the inner side of the fixed cylinder (17) is fixedly mounted on the outer side of the rotating rod (10); a plurality of hemispherical bodies (20) distributed in a centrally symmetrical manner are fixedly mounted on the top of the rotating disk (19); a spherical groove (1) for limiting and inserting the hemispherical bodies (20) is provided at the bottom of the fixed disk (18); the outer side of the spherical groove (1) is an arc-shaped structure; A guide ring (21) is fixedly mounted on the outer side of the fixed plate (18), the outer side of the guide ring (21) contacts the inner side of the fixed cylinder (17), a spring 1 (22) is fixedly mounted between the top of the guide ring (21) and the inner side of the top of the fixed cylinder (17), a mounting ring (23) is fixedly mounted on the bottom of the gear 2 (16), the mounting ring (23) is rotatably mounted on the inner side of the mounting box (8), a plurality of positioning blocks (24) are fixedly mounted on the inner side of the mounting ring (23) and are symmetrically distributed in the center, and a long groove for limiting the sliding of the positioning blocks (24) is provided on the outer side of the rotating rod (10).

4. The method for preparing a wear-resistant plastic according to claim 3, characterized in that: The plate removal assembly comprises a slider (25) fixedly mounted on the outside of the mounting tube (14); a sliding cavity for limiting the sliding movement of the mounting tube (14) and the slider (25) is provided on the inner side of the rotating rod (10); a second spring (26) is fixedly mounted between the slider (25) and the inner side of the sliding cavity; a ball (27) is fixedly mounted on the side of the mounting tube (14) away from the mounting rod (13); the interior of the rotating rod (10) is a hollow structure; a rod (28) is provided on the interior of the rotating rod (10); a spherical groove (2) for limiting the insertion of the ball (27) is provided on the outer side of the rod (28); a rhombus column (26) is fixedly mounted on the outer side of the rod (28) 29), a diamond-shaped cavity for limiting the sliding of the diamond-shaped column (29) is provided on the inner side of the rotating rod (10), the diamond-shaped column (29) is made of a magnet material, the top end of the push rod (28) slides and extends to the outside of the installation box (8), the top of the top frame (3) is provided with a sliding hole for limiting the sliding of the push rod (28), the outer side of the push rod (28) is fixedly installed with a fixed block (30) in contact with the top of the top frame (3), two symmetrically distributed top plates (31) are arranged above the top frame (3), and two support rods (32) are fixedly installed between the bottom of the top plate (31) and the top of the sealing top cover (2), both of which slide through the top frame (3).

5. The method for preparing a wear-resistant plastic according to claim 2, characterized in that: A sealing ring (33) is fixedly mounted on the bottom of the sealing top cover (2), and the outer side of the sealing ring (33) is in contact with the inner side of the stirring tank (1).

6. The method for preparing a wear-resistant plastic according to claim 2, characterized in that: A feed valve (34) is fixedly mounted on the top of the sealing top cover (2).

7. The method for preparing a wear-resistant plastic according to claim 2, characterized in that: Both ends of the installation rod (13) are provided with external threads that match the installation tube (14), and the scraper (12) is butted against an end of the installation rod (13) away from the installation tube (14) via a positioning tube (35).

8. The method for preparing a wear-resistant plastic according to claim 2, characterized in that: The stirring rods (11) and the mounting rods (13) are arranged in a staggered manner.

9. The method for preparing a wear-resistant plastic according to claim 2, characterized in that: A sleeve (36) is slidably mounted on the outer side of the mounting cylinder (14), and the sleeve (36) is fixedly mounted on the outer side of the rotating rod (10).

10. A wear-resistant plastic obtained by the preparation method of a wear-resistant plastic according to any one of claims 1 to 9.

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