Polyethylene sheath raw material high-speed mixing machine
Patent Information
- Application Number
- CN202522626757.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-11
AI Technical Summary
Existing high-speed mixers have problems with insufficient mixing and raw material residue in the production of polyethylene sheaths, resulting in poor mixing uniformity, increased production costs, and affected product quality.
The system employs nested first and second stirring shafts, coupled with gear transmission components to achieve dual-shaft reverse or opposite rotation. Combined with scraper design, it ensures multi-dimensional convection motion of materials and synchronous scraping of residual raw materials.
It achieves comprehensive, deep, and uniform mixing of polyethylene main material and auxiliary materials, avoiding raw material waste and residual pollution, and improving production efficiency and mixing quality.
Smart Images
Figure CN224928262U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-speed mixer technology, and in particular to a high-speed mixer for polyethylene sheath raw materials. Background Technology
[0002] A high-speed mixer is an industrial device that uses a high-speed rotating impeller to generate strong shearing, impact, and convection forces, enabling rapid and uniform mixing of materials such as powders, granules, and liquids. Its core component is a main shaft with special blades, which, driven by a motor, causes the material to swirl along the conical wall of the mixing chamber. Efficient mixing is achieved through centrifugal force and gravity circulation, and it also features a heating / cooling jacket to control the material temperature. In polyethylene sheath production, the raw material needs to be a mixture of medium-density polyethylene (MDPE) with carbon black masterbatch, antioxidants, processing aids, and other auxiliary materials. The high-speed mixer can break up material agglomerates in a short time through high shear force, ensuring that the additives are uniformly dispersed in the polyethylene matrix. Simultaneously, it avoids excessive temperature rise caused by prolonged mixing, thus guaranteeing the stability of the mixing quality and the key properties of the sheath material, such as environmental stress cracking resistance and electrical insulation. Finally, the uniformly mixed raw material is melted, plasticized, and extruded using a twin-screw extruder to produce standard-compliant sheath granules.
[0003] In existing technologies, when using high-speed mixers to process raw materials for producing polyethylene sheaths, the agitators in commonly used high-speed mixers typically only rotate in one direction. This causes the internal materials to rotate in a single direction as well. This unidirectional rotation results in insufficient relative movement between materials, making it difficult to achieve thorough and complete mixing. Some materials may merely circulate in one direction, failing to make comprehensive and deep contact and mix with other materials, thus affecting the mixing effect and resulting in poor uniformity of the mixed raw materials.
[0004] In addition, after the mixing process is completed, some raw materials are likely to remain on the pot wall. These residual raw materials not only cause waste of raw materials and increase production costs, but may also contaminate subsequent mixing batches and affect product quality. Moreover, the cleaning of residual raw materials is often tedious and requires additional manpower and time, which reduces production efficiency. Utility Model Content
[0005] The main objective of this invention is to provide a high-speed mixer for polyethylene sheath raw materials, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A high-speed mixer for polyethylene sheath raw materials includes a frame, a pot base fixedly connected to the top of the frame, and a pot body fixedly connected to the top of the pot base.
[0008] A first stirring shaft is rotatably connected inside the pot, and a first stirring blade is fixedly connected to the outside of the first stirring shaft. A motor is fixedly connected to the top of the frame, and a small pulley is fixedly connected to the output end of the motor. A large pulley is rotatably connected inside the frame and to one side of the small pulley. The small pulley and the large pulley are rotatably connected by a tension belt. A first rotating rod is fixedly connected between the first stirring shaft and the large pulley.
[0009] The first stirring shaft is rotatably connected to the inside of the second stirring shaft, and the second stirring blade is fixedly connected to the outside of the second stirring shaft. A gear transmission component for driving the second stirring shaft to rotate is installed below the large pulley.
[0010] A set of scraping components for scraping raw materials off the inner wall of the pot are installed on the outer side of the first stirring shaft.
[0011] Preferably, a lid is installed on the top of the pot body, a cylinder for driving the lid to move vertically is installed on one side of the pot body, a feed inlet is fixedly connected to the top of the lid, and a discharge outlet is fixedly connected to the bottom of one side of the pot body.
[0012] Preferably, the gear transmission component includes a first bevel gear, a support plate, a fixed plate, a second bevel gear, and a third bevel gear. The first bevel gear is fixedly connected to the bottom of the large pulley. The support plate is fixedly connected to the inner side of the frame and located below the large pulley. The fixed plate is fixedly connected to the top of the support plate. A first mounting hole is provided on one side of the fixed plate, and a second bearing is fixedly connected in the first mounting hole. A second rotating rod is fixedly connected to one side of the second bevel gear. The second rotating rod is inserted and fixedly fixed to the inner ring of the second bearing. The second bevel gear meshes with the first bevel gear. A second mounting hole is provided on the top of the support plate, and a third bearing is fixedly connected in the second mounting hole. A third rotating rod is fixedly connected to the bottom of the third bevel gear. The third rotating rod is inserted and fixedly fixed to the inner ring of the third bearing. The third bevel gear meshes with the second bevel gear. The second stirring shaft is fixedly connected to the top of the third bevel gear.
[0013] Preferably, the bottom of the first bevel gear has a through hole that passes through the large pulley, the first rotating rod, and the first stirring shaft. The second stirring shaft passes through the through hole. A first bearing is fixedly connected inside the bottom of the pot body. The first rotating rod is inserted and fixed to the inner ring of the first bearing.
[0014] Preferably, a plurality of the first and second stirring blades are provided and fixedly connected to the outside of the first and second stirring shafts respectively, with the second stirring blades located above the first stirring shaft.
[0015] Preferably, the scraping component includes a fixed cylinder, a spring, a push rod, and a scraper. The fixed cylinder is fixedly connected to the top of the outer side of the first stirring shaft. One end of the spring is fixedly connected to the bottom of the fixed cylinder, and the other end of the spring is fixedly connected to the push rod. A set of sliders is fixedly connected to the outer side of the push rod near the fixed cylinder. The sliders are slidably connected to a groove opened on the inner side of the fixed cylinder. The scraper is fixedly connected to the end of the push rod away from the spring.
[0016] Preferably, the scraper is in an arc shape and is close to one side of the inner wall of the pot, and the two sides of the scraper are inclined.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] In this invention, by setting up a nested first stirring shaft and a second stirring shaft, and cooperating with a gear transmission component to achieve dual-shaft reverse or opposite rotation, the first stirring blade and the second stirring blade drive the material to form a multi-dimensional convective motion, thereby improving the relative motion intensity between materials. This solves the problem of insufficient mixing caused by stirring in one direction, and ensures that the polyethylene main material and various auxiliary materials achieve all-round and deep uniform mixing, thus ensuring the stability of the key performance of the sheath material.
[0019] Meanwhile, the scraper on the outside of the first stirring shaft keeps the scraper in close contact with the inner wall of the pot through the spring pushing action, and scrapes off the residual raw materials in the same way during the stirring process. This not only avoids the waste of raw materials and reduces production costs, but also prevents the residual raw materials from contaminating subsequent batches. No additional manual cleaning is required, which improves production efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the gear transmission component of this utility model;
[0023] Figure 4 This is a cross-sectional enlarged schematic diagram of the scraper component of this utility model.
[0024] In the diagram: 1. Frame; 2. Pot base; 3. Pot body; 4. Pot lid; 5. Cylinder; 6. Feed inlet; 7. Discharge outlet; 8. Motor; 9. Small pulley; 10. Large pulley; 11. Tensioning belt; 12. First bearing; 13. First rotating rod; 14. First stirring shaft; 15. First stirring blade; 16. Perforation; 17. First bevel gear; 18. Support plate; 19. Fixing plate; 20. First mounting hole; 21. Second bearing; 22. Second bevel gear; 23. Second rotating rod; 24. Second mounting hole; 25. Third bearing; 26. Third bevel gear; 27. Third rotating rod; 28. Second stirring shaft; 29. Second stirring blade; 30. Fixing cylinder; 31. Slide groove; 32. Spring; 33. Top rod; 34. Slider; 35. Scraper. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0029] like Figure 1 - Figure 4 As shown, a high-speed mixer for polyethylene sheath raw materials includes a frame 1, a pot base 2 fixedly connected to the top of the frame 1, and a pot body 3 fixedly connected to the top of the pot base 2.
[0030] A first stirring shaft 14 is rotatably connected inside the pot body 3. A first stirring blade 15 is fixedly connected to the outside of the first stirring shaft 14. A motor 8 is fixedly connected to the top of the frame 1. A small pulley 9 is fixedly connected to the output end of the motor 8. A large pulley 10 is rotatably connected inside the frame 1 and located on one side of the small pulley 9. The small pulley 9 and the large pulley 10 are rotatably connected by a tension belt 11. A first rotating rod 13 is fixedly connected between the first stirring shaft 14 and the large pulley 10.
[0031] The first stirring shaft 14 is rotatably connected to the second stirring shaft 28, and the second stirring blade 29 is fixedly connected to the outside of the second stirring shaft 28. A gear transmission component for driving the second stirring shaft 28 to rotate is installed below the large pulley 10.
[0032] A set of scraping components for scraping raw materials from the inner wall of the pot body 3 is installed on the outer side of the first stirring shaft 14.
[0033] like Figure 1 and Figure 2 As shown, a lid 4 is installed on the top of the pot body 3, a cylinder 5 for driving the lid 4 to move vertically is installed on one side of the pot body 3, a feed inlet 6 is fixedly connected to the top of the lid 4, and a discharge outlet 7 is fixedly connected to the bottom of one side of the pot body 3.
[0034] Furthermore, the cylinder 5 installed on one side of the pot body 3 provides driving force to drive the pot lid 4 on the top of the pot body 3 to make vertical lifting and lowering movements, thereby opening and closing the pot lid 4. The raw materials are put into the pot body 3 through the feed port 6 fixed on the top of the pot lid 4, and the raw materials after mixing are discharged through the discharge port 7 fixed on the bottom of one side of the pot body 3.
[0035] like Figure 2 and Figure 3As shown, the gear transmission component includes a first bevel gear 17, a support plate 18, a fixed plate 19, a second bevel gear 22, and a third bevel gear 26. The first bevel gear 17 is fixedly connected to the bottom of the large pulley 10. The support plate 18 is fixedly connected to the inner side of the frame 1 and located below the large pulley 10. The fixed plate 19 is fixedly connected to the top of the support plate 18. A first mounting hole 20 is provided on one side of the fixed plate 19, and a second bearing 21 is fixedly connected in the first mounting hole 20. A second rotating rod is fixedly connected to one side of the second bevel gear 22. 23. The second rotating rod 23 is inserted and fixed to the inner ring of the second bearing 21. The second bevel gear 22 is meshed with the first bevel gear 17. The top of the support plate 18 is provided with a second mounting hole 24. The third bearing 25 is fixedly connected in the second mounting hole 24. The bottom of the third bevel gear 26 is fixedly connected to the third rotating rod 27. The third rotating rod 27 is inserted and fixed to the inner ring of the third bearing 25. The third bevel gear 26 is meshed with the second bevel gear 22. The second stirring shaft 28 is fixedly connected to the top of the third bevel gear 26.
[0036] Furthermore, this component assembly provides power to the second stirring shaft 28 and ensures its stable rotation. When the large pulley 10 rotates, it drives the first bevel gear 17 fixed at the bottom to rotate synchronously. Through the meshing transmission between the first bevel gear 17 and the second bevel gear 22, the power is transmitted to the second bevel gear 22. The second rotating rod 23 on one side of the second bevel gear 22 is inserted and fixed in the inner ring of the second bearing 21 in the first mounting hole 20 of the fixing plate 19, so as to realize the stable rotation of the second bevel gear 22. Then, through the meshing transmission between the second bevel gear 22 and the third bevel gear 26, the third rotating rod 27 at the bottom of the third bevel gear 26 is driven to rotate. The third rotating rod 27 is inserted and fixed in the inner ring of the third bearing 25 in the second mounting hole 24 of the support plate 18, so as to ensure the stable rotation of the third bevel gear 26. Finally, the second stirring shaft 28 fixed at the top of the third bevel gear 26 outputs rotational power.
[0037] Furthermore, the change and transmission of power direction is achieved through the meshing transmission of multiple sets of bevel gears. In conjunction with the setting of the second bearing 21 and the third bearing 25, the friction during the transmission process is reduced, the transmission efficiency is improved, and the wear of components is reduced.
[0038] The fixed support structure of the support plate 18 and the fixed plate 19 ensures the stability of the entire transmission system and avoids component misalignment during transmission, which could lead to malfunctions.
[0039] It provides stable rotational power for the second stirring shaft 28 and enables it to rotate in the opposite or opposite direction to the first stirring shaft 14, thus providing a power basis for multidimensional stirring.
[0040] like Figure 2 and Figure 3As shown, the bottom of the first bevel gear 17 has a through hole 16 that passes through the large pulley 10, the first rotating rod 13 and the first stirring shaft 14. The second stirring shaft 28 passes through the through hole 16. The bottom of the pot body 3 is fixedly connected to the first bearing 12. The first rotating rod 13 is inserted and fixed to the inner ring of the first bearing 12.
[0041] Furthermore, a through-channel is provided for the second stirring shaft 28, allowing the second stirring shaft 28 to be nested inside the first stirring shaft 14 and rotate independently. One end of the first rotating rod 13 is fixedly connected to the large pulley 10, and the other end is inserted and fixed inside the inner ring of the first bearing 12 at the bottom of the pot body 3. Driven by the large pulley 10, it drives the first stirring shaft 14 to rotate. The double-shaft nesting structure ensures that the first stirring shaft 14 and the second stirring shaft 28 can rotate synchronously and in opposite directions, avoiding motion interference.
[0042] like Figure 2 and Figure 3 As shown, a plurality of first stirring blades 15 and second stirring blades 29 are provided and fixedly connected to the outside of the first stirring shaft 14 and the second stirring shaft 28 respectively, with the second stirring blades 29 located above the first stirring shaft 14.
[0043] Furthermore, several first stirring blades 15 are fixed to the outside of the first stirring shaft 14 and rotate synchronously with the first stirring shaft 14; several second stirring blades 29 are fixed to the outside of the second stirring shaft 28 and rotate synchronously with the second stirring shaft 28, and the second stirring blades 29 are located above the first stirring shaft 14, forming a vertically distributed stirring layout; since the first stirring shaft 14 and the second stirring shaft 28 rotate in opposite directions or in the opposite direction, the two sets of blades are driven to form a countercurrent motion;
[0044] Furthermore, the double-set blades distributed vertically expand the mixing coverage area, avoiding the occurrence of mixing dead corners within the pot body 3. The multi-dimensional convection motion formed by the opposite or reverse rotation enhances the relative motion intensity between materials, breaking the problem of unidirectional material circulation caused by unidirectional mixing. This allows the polyethylene main material and various auxiliary materials to fully contact, collide, and mix, effectively improving the mixing uniformity.
[0045] like Figure 3 and Figure 4 As shown, the scraping component includes a fixed cylinder 30, a spring 32, a push rod 33, and a scraper 35. The fixed cylinder 30 is fixedly connected to the top of the outer side of the first stirring shaft 14. One end of the spring 32 is fixedly connected to the bottom of the fixed cylinder 30, and the other end of the spring 32 is fixedly connected to the push rod 33. A set of sliders 34 are fixedly connected to the outer side of the push rod 33 near the fixed cylinder 30. The sliders 34 are slidably connected to the groove 31 opened on the inner side of the fixed cylinder 30. The scraper 35 is fixedly connected to the end of the push rod 33 away from the spring 32.
[0046] Furthermore, the material inside the pot 3 is scraped off synchronously during the stirring process. The fixed cylinder 30 is fixed to the top of the outside of the first stirring shaft 14 and rotates synchronously with the first stirring shaft 14. The spring 32 fixed at the bottom of the fixed cylinder 30 generates a continuous pushing force on the top rod 33, pushing the top rod 33 to extend away from the fixed cylinder 30. A set of sliders 34 on the outside of the top rod 33 near the fixed cylinder 30 slides and engages with the groove 31 opened on the inside of the fixed cylinder 30, limiting the movement direction of the top rod 33 and ensuring its smooth extension and retraction. The scraper 35 fixed at the end of the top rod 33 away from the spring 32 is pressed against the inner wall of the pot 3 under the pushing action of the spring 32. It scrapes the material on the inner wall as the first stirring shaft 14 rotates, avoiding material waste, reducing production costs, and preventing residual material from contaminating subsequent batches. This eliminates the need for additional manual cleaning steps and improves production efficiency.
[0047] like Figure 3 and Figure 4 As shown, the scraper 35 is in an arc shape on one side of the inner wall of the pot body 3, and the two sides of the scraper 35 are inclined.
[0048] Furthermore, the scraper 35 is designed with an arc shape on one side that is in close contact with the inner wall of the pot body 3, which matches the arc contour of the inner wall of the pot body 3, increasing the contact area between the scraper 35 and the inner wall. The two sides of the scraper 35 are designed with an inclined shape to reduce the resistance of the raw material to the scraper 35 during the scraping process, while allowing the scraped raw material to slide more smoothly into the pot body 3 to participate in the mixing, further improving the practicality of scraping and the mixing efficiency.
[0049] The working principle of this high-speed mixer for polyethylene sheathing raw materials is as follows:
[0050] After the raw materials for producing polyethylene sheaths are fed into the pot body 3 through the feed inlet 6 installed on the top of the pot lid 4, the motor 8 fixed on the top of the frame 1 is then started. The output end of the motor 8 drives the small pulley 9 to rotate. The small pulley 9 drives the large pulley 10, which is rotatably connected to one side of the frame 1, to rotate synchronously through the tension belt 11. The first rotating rod 13, which is fixedly connected to the large pulley 10, rotates accordingly. The first rotating rod 13 is stably supported by the first bearing 12 fixed inside the bottom of the pot body 3 and drives the first stirring shaft 14 inside the pot body 3 to rotate, thereby driving several first stirring blades 1 on the outside of the first stirring shaft 14. 5. The raw materials in the pot are stirred. At the same time, the first bevel gear 17 fixed at the bottom of the large pulley 10 rotates synchronously with the large pulley 10. Power is transmitted through the second bevel gear 22 meshing with the first bevel gear 17. The second rotating rod 23 on one side of the second bevel gear 22 rotates stably through the second bearing 21 in the first mounting hole 20 of the fixing plate 19. Then, the third bevel gear 26 meshing with the second bevel gear 22 drives the third rotating rod 27 at its bottom to rotate. The third rotating rod 27 is stably supported by the third bearing 25 in the second mounting hole 24 on the support plate 18. Finally, the third bevel gear 26 rotates. The second stirring shaft 28, fixed at the top, passes through the hole 16 at the bottom of the first bevel gear 17, through the large pulley 10, the first rotating rod 13, and the first stirring shaft 14. It rotates in opposite directions inside the first stirring shaft 14, driving several second stirring blades 29 located above the first stirring blades 15 on its outer side to stir synchronously, forming multi-dimensional convection motion to improve the uniformity of the raw material mixing. Furthermore, during the stirring process, the spring 32 inside the top fixed cylinder 30 on the outer side of the first stirring shaft 14 continuously pushes the push rod 33. The push rod 33 maintains stable extension through the sliding cooperation between the outer slider 34 and the inner sliding groove 31 of the fixed cylinder 30. The top rod 33 is retracted, so that the scraper 35 at the end away from the spring 32 is always in close contact with the inner wall of the pot body 3. The fixed cylinder 30 will rotate with the rotation of the first stirring shaft 14, and drive the scraper 35 to rotate in close contact with the inside of the pot body 3 through the top rod 33. During the rotation, the arc-shaped contact surface and the inclined sides of the scraper 35 can efficiently scrape off the residual raw materials on the inner wall. The scraped raw materials are re-involved in the mixing. After the mixing is completed, the discharge port 7 at the bottom of one side of the pot body 3 is opened to discharge the evenly mixed raw materials, completing one mixing operation. Throughout the process, the pot base 2 at the top of the frame 1 provides stable support for the pot body 3, ensuring the stability of the equipment operation.
[0051] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A high-speed mixer for polyethylene sheath raw materials, comprising a frame (1), wherein a pot base (2) is fixedly connected to the top of the frame (1), and a pot body (3) is fixedly connected to the top of the pot base (2); Its features are: A first stirring shaft (14) is rotatably connected inside the pot body (3). A first stirring blade (15) is fixedly connected to the outside of the first stirring shaft (14). A motor (8) is fixedly connected to the top of the frame (1). A small pulley (9) is fixedly connected to the output end of the motor (8). A large pulley (10) is rotatably connected inside the frame (1) and located on the side of the small pulley (9). The small pulley (9) and the large pulley (10) are rotatably connected by a tension belt (11). A first rotating rod (13) is fixedly connected between the first stirring shaft (14) and the large pulley (10). The first stirring shaft (14) is rotatably connected to the second stirring shaft (28), and the second stirring blade (29) is fixedly connected to the outside of the second stirring shaft (28). A gear transmission component for driving the second stirring shaft (28) to rotate is installed below the large pulley (10). A set of scraping parts for scraping the raw materials on the inner wall of the pot body (3) is installed on the outside of the first stirring shaft (14).
2. The high-speed mixer for polyethylene sheath raw materials according to claim 1, characterized in that: The top of the pot body (3) is equipped with a pot lid (4), and a cylinder (5) for driving the pot lid (4) to move vertically is installed on one side of the pot body (3). The top of the pot lid (4) is fixedly connected to a feed inlet (6), and the bottom of one side of the pot body (3) is fixedly connected to a discharge outlet (7).
3. The high-speed mixer for polyethylene sheath raw materials according to claim 1, characterized in that: The gear transmission component includes a first bevel gear (17), a support plate (18), a fixing plate (19), a second bevel gear (22), and a third bevel gear (26). The first bevel gear (17) is fixedly connected to the bottom of the large pulley (10). The support plate (18) is fixedly connected to the inner side of the frame (1) and located below the large pulley (10). The fixing plate (19) is fixedly connected to the top of the support plate (18). A first mounting hole (20) is provided on one side of the fixing plate (19). A second bearing (21) is fixedly connected in the first mounting hole (20). A second rotating rod (26) is fixedly connected to one side of the second bevel gear (22). 3) The second rotating rod (23) is inserted and fixed to the inner ring of the second bearing (21), the second bevel gear (22) is meshed with the first bevel gear (17), the top of the support plate (18) is provided with a second mounting hole (24), the second mounting hole (24) is fixedly connected to a third bearing (25), the bottom of the third bevel gear (26) is fixedly connected to a third rotating rod (27), the third rotating rod (27) is inserted and fixed to the inner ring of the third bearing (25), the third bevel gear (26) is meshed with the second bevel gear (22), and the second stirring shaft (28) is fixedly connected to the top of the third bevel gear (26).
4. The high-speed mixer for polyethylene sheath raw materials according to claim 3, characterized in that: The bottom of the first bevel gear (17) is provided with a through hole (16) that passes through the large pulley (10), the first rotating rod (13) and the first stirring shaft (14). The second stirring shaft (28) passes through the through hole (16). The bottom of the pot body (3) is fixedly connected to the first bearing (12). The first rotating rod (13) and the inner ring of the first bearing (12) are inserted and fixed.
5. A high-speed mixer for polyethylene sheath raw materials according to claim 1, characterized in that: The first stirring blade (15) and the second stirring blade (29) are provided in a plurality of units and are respectively fixedly connected to the outside of the first stirring shaft (14) and the second stirring shaft (28), with the second stirring blade (29) located above the first stirring shaft (14).
6. A high-speed mixer for polyethylene sheath raw materials according to claim 1, characterized in that: The scraping component includes a fixed cylinder (30), a spring (32), a top rod (33), and a scraper (35). The fixed cylinder (30) is fixedly connected to the top of the outer side of the first stirring shaft (14). One end of the spring (32) is fixedly connected to the bottom of the fixed cylinder (30), and the other end of the spring (32) is fixedly connected to the top rod (33). A set of sliders (34) is fixedly connected to the outer side of the top rod (33) near the fixed cylinder (30). The sliders (34) are slidably connected to the groove (31) opened on the inner side of the fixed cylinder (30). The scraper (35) is fixedly connected to the end of the top rod (33) away from the spring (32).
7. A high-speed mixer for polyethylene sheath raw materials according to claim 6, characterized in that: The scraper (35) is in an arc shape and is close to the inner wall of the pot body (3), and the two sides of the scraper (35) are inclined.