Internal mixer capable of improving dynamic balance of rotor

Abstract

The utility model discloses an internal mixer capable of improving dynamic balance of a rotor, which relates to the field of high polymer material processing and comprises a material processing cavity, an extrusion plate is arranged at the top end of the material processing cavity, rotating shafts are arranged on two sides of the bottom end of the material processing cavity, and main rotor bodies are arranged at two ends of the rotating shafts. The main rotor body is sleeved with a rotating shaft, the middle of the rotating shaft is sleeved with an auxiliary rotor body, material scraping blades are arranged on the two sides of the material containing cavity, blade heads are arranged at the bottom ends of the material scraping blades, protruding parts are arranged at one end of the main rotor body and one end of the auxiliary rotor body, and an auxiliary structure is arranged in the auxiliary rotor body. The materials cannot be adhered to the inner wall of the material containing cavity through the surfaces of the material scraping blades, and the blade heads at the bottom ends of the material scraping blades can continuously scrape the stirred materials when the attached rotor body rotates, so that the materials cannot be adhered to the inner wall of the material containing cavity and the outer side of the attached rotor body when being treated.

Description

Technical Field

[0001] This invention relates to the field of polymer material processing technology, specifically to a mixer that can improve the dynamic balance of a rotor. Background Technology

[0002] Internal mixers are key equipment in the processing of polymer materials such as plastics and rubber, and their core component—the rotor—plays a crucial role. The rotor design directly affects the mixing and plasticizing effect of materials within the mixing chamber.

[0003] In the high-pressure, high-temperature mixing environment, plastic materials often exhibit extreme viscosity. Excessive viscosity can cause the material to stick to the rotor surface, leading to a series of problems. First, the sticky material disrupts the smoothness of the rotor surface, increasing frictional resistance and thus reducing mixing efficiency. Second, prolonged sticking can cause carbon buildup in the material, affecting product quality and even causing equipment malfunctions.

[0004] Furthermore, the rotor must maintain dynamic balance during high-speed rotation. If this dynamic balance is disrupted, the internal mixer will face serious problems. At best, it will cause severe vibrations, accelerating equipment wear and shortening its service life; at worst, it may lead to rotor breakage, causing safety accidents and incalculable losses.

[0005] Therefore, in order to address the issues of dynamic balance of the internal mixer rotor and material adhesion, this invention provides an internal mixer that can improve rotor dynamic balance to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a mixer that can improve the dynamic balance of the rotor, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mixing mill that can improve the dynamic balance of the rotor, comprising: a material processing chamber, an extrusion plate provided at the top of the material processing chamber, a rotating shaft provided on both sides of the bottom end of the material processing chamber, a main rotor body provided at both ends of the rotating shaft, and an auxiliary rotor body sleeved in the middle of the rotating shaft;

[0008] The material chamber is provided with scraper blades on both sides, and the scraper blades are provided with blade heads at the bottom. One end of the main rotor body and the auxiliary rotor body is provided with a protruding part, and the auxiliary rotor body is provided with an auxiliary structure inside.

[0009] Furthermore, the volume of the auxiliary rotor body is smaller than that of the main rotor body, and the top edge of the protruding part of the auxiliary rotor body is lower than the top edge of the protruding part of the main rotor body, so that the auxiliary rotor body can become the main part of scraping the material, while the main rotor body is only responsible for scraping the material in the front and back parts of the material cavity.

[0010] Furthermore, the scraper blade has an arc-shaped protrusion in the middle, and the thickness of the scraper blade is greater than the thickness of the blade head. This allows the arc-shaped protrusion in the middle of the scraper blade to prevent the material from directly sticking to the inner wall of the material dispensing cavity, and when the blade head is thin, it can effectively cut the material structure.

[0011] Furthermore, the number of scraper blades and blades is equal to the number of the attached rotor body, so that the scraper blades and blades can sufficiently help scrape the material at the top of the attached rotor body.

[0012] Furthermore, the auxiliary structure includes an outer counterweight, an inner counterweight, and an anti-misalignment plate. An inner counterweight is provided in the middle of the interior of the auxiliary rotor body, and an outer counterweight is provided on the outside of the inner counterweight. An anti-misalignment plate is provided at the connection between the protrusion of the auxiliary rotor body and the other cavities. The anti-misalignment plate is in the shape of a herringbone, so that one side of the anti-misalignment plate can prevent the outer and inner counterweights from loosening.

[0013] Furthermore, the number of outer counterweights arranged in a ring is greater than the number of inner counterweights, so that both outer and inner counterweights can be fully placed inside the rotor body.

[0014] Furthermore, the length of the anti-error piece is equal to the length inside the attached rotor body, so that the anti-error piece can be fully inserted into the interior of the attached rotor body.

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

[0016] 1. This utility model involves stirring, pressing, and plasticizing the material inside the processing chamber. At this time, the rotating shaft drives the main rotor body and the auxiliary rotor body to rotate. Since most of the material is placed in the middle of the rotating shaft for processing, and the main rotor body only processes a portion of the material, the auxiliary rotor body on the outer side of the middle of the rotating shaft becomes the active material processing component. When the auxiliary rotor body processes the material, the material is continuously stirred by the auxiliary rotor body. After the extrusion plate is pressed down, the material storage space is restricted to the inside of the processing chamber. The surface of the scraper blades prevents the material from sticking to the inner wall of the processing chamber. Furthermore, the blade tip at the bottom of the scraper blades can continuously scrape the stirred material when the auxiliary rotor body rotates. In this way, the material will not stick to the inner wall of the processing chamber or the outer side of the auxiliary rotor body during processing.

[0017] 2. In this utility model, when the rotor body rotates, the outer and inner counterweights inside the rotor body roll along with the rotation of the rotor body. At the same time, the gap between the outer and inner counterweights is small, so the outer and inner counterweights stop rolling inside the rotor body when they roll to a certain angle. Meanwhile, the anti-misalignment plate prevents the outer and inner counterweights from moving excessively. This can compensate for the uneven mass distribution of the rotor body and improve its dynamic balance during rotation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the first rotor part of the present invention;

[0019] Figure 2 This is a schematic diagram of the second rotor part of the present invention;

[0020] Figure 3 This is a schematic diagram of the first rotor position structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the second rotor position structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the auxiliary structure of this utility model.

[0023] In the diagram: 1. Extrusion plate; 2. Scraper blade; 3. Blade head; 4. Material discharge chamber; 5. Main rotor body; 6. Auxiliary rotor body; 7. Shaft; 8. Auxiliary structure; 81. Outer counterweight; 82. Inner counterweight; 83. Anti-misalignment plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-5 As shown, a mixer that can improve the dynamic balance of the rotor includes: a material processing chamber 4, an extrusion plate 1 is provided at the top of the material processing chamber 4, a rotating shaft 7 is provided on both sides of the bottom end of the material processing chamber 4, a main rotor body 5 is provided at both ends of the rotating shaft 7, and an auxiliary rotor body 6 is sleeved in the middle of the rotating shaft 7.

[0026] Scraping blades 2 are provided on both sides of the material chamber 4. The bottom end of the scraping blades 2 is provided with a blade head 3. One end of the main rotor body 5 and the auxiliary rotor body 6 is provided with a protruding part. The auxiliary rotor body 6 is provided with an auxiliary structure 8 inside.

[0027] The rest, since the rotating shaft 7 drives the auxiliary rotor body 6 and the main rotor body 5 to rotate, the main rotor body 5 is responsible for agitating the material at both ends of the material processing chamber 4, while the auxiliary rotor body 6 agitates the main material in the middle of the material processing chamber 4. When the auxiliary rotor body 6 rotates, the protruding part at the front end of the auxiliary rotor body 6 pushes the material from the middle part of the material processing chamber 4 to the two sides inside the material processing chamber 4. The scraper blade 2 on the inner wall of the material processing chamber 4 has an arc structure, so the surface of the scraper blade 2 can prevent the material from sticking to the inner wall of the material processing chamber 4. In addition, the blade head 3 at the bottom of the scraper blade 2 can cut off the material structure of a longer length, so as to facilitate the material to be fully agitated, plasticized and other processes.

[0028] Specifically, the coordinated rotation of the auxiliary rotor body 6 and the main rotor body 5 ensures that the material is fully stirred, pressed and plasticized in the material processing chamber 4. The protruding part of the auxiliary rotor body 6 effectively pushes the material to move to both sides, avoiding the material from sticking to the inner wall of the material processing chamber 4. The arc structure of the scraper blade 2 and the design of the blade head 3 not only prevent the material from sticking, but also realize the cutting of long materials, further promoting the uniform processing of materials. In addition, the volume of the auxiliary rotor body 6 is smaller than that of the main rotor body 5, making it the main component for scraping the material, while the main rotor body 5 is responsible for processing the material in the front and rear parts of the material processing chamber 4. This clear division of labor design improves the mixing efficiency.

[0029] When the internal mixer is running, the rotating shaft 7 drives the auxiliary rotor body 6 and the main rotor body 5 to rotate. The material in the feeding chamber 4 is pushed to both sides by the protruding part of the auxiliary rotor body 6. At the same time, the arc-shaped protrusion of the scraper blade 2 prevents the material from sticking together, and the blade head 3 cuts off long materials, ensuring uniform mixing and plasticization of the material. This design not only improves the production efficiency of the rubber cup, but also ensures the stability of product quality.

[0030] like Figures 1-5 As shown, the auxiliary structure 8 includes an outer counterweight 81, an inner counterweight 82, and an anti-misalignment plate 83. The inner counterweight 82 is located in the middle of the interior of the rotor body 6, and the outer counterweight 81 is located on the outside of the inner counterweight 82. An anti-misalignment plate 83 is located at the connection between the protrusion of the rotor body 6 and the other cavities. The anti-misalignment plate 83 is in the shape of a herringbone.

[0031] Furthermore, when the auxiliary rotor body 6 rotates, the outer counterweight 81 and inner counterweight 82 inside the auxiliary rotor body 6 still contain gaps due to the ring arrangement. Therefore, the outer counterweight 81 and inner counterweight 82 will also rotate autonomously when they rotate with the auxiliary rotor body 6. However, when the outer counterweight 81 and inner counterweight 82 rotate to a certain angle, they will overlap. At the same time, the anti-misalignment piece 83 prevents the outer counterweight 81 and inner counterweight 82 from moving excessively. At this time, the counterweight of the outer counterweight 81 and inner counterweight 82 can prevent the auxiliary rotor body 6 from shifting position after excessive rotation.

[0032] This has resulted in the following effects and novel technologies:

[0033] This utility model of an internal mixer achieves dynamic balance adjustment and error prevention during the rotation of the auxiliary rotor body 6 by setting an auxiliary structure 8 inside the auxiliary rotor body 6, including an outer counterweight 81, an inner counterweight 82, and an anti-error plate 83. The outer counterweight 81 and the inner counterweight 82 can rotate autonomously during rotation and overlap at a specific angle, compensating for uneven mass distribution of the auxiliary rotor body 6 and preventing softening problems caused by positional deviation and excessive rotation speed.

[0034] The herringbone design of the anti-misalignment plate 83 effectively limits the excessive movement of the outer counterweight 81 and the inner counterweight 82, ensuring the stable position of the counterweight and further enhancing the dynamic balance performance of the attached rotor body 6.

[0035] When the auxiliary rotor body 6 rotates, the outer counterweight 81 and the inner counterweight 82 roll accordingly and stop at a specific angle, thus achieving mass distribution compensation for the auxiliary rotor body 6. The anti-misalignment plate 83 extends completely into the auxiliary rotor body 6, effectively preventing the counterweights from loosening and ensuring the stable operation of the internal mixer. This design not only improves the service life of the internal mixer but also enhances the production quality and efficiency of the rubber cups.

[0036] Working Principle: When using this internal mixer, the material first enters the interior of the material processing chamber 4 from the top of both sides. Simultaneously, the extrusion plate 1 moves downwards to press the material inside the chamber 4. Driven by external equipment, the rotating shaft 7 starts to rotate the main rotor body 5 and the auxiliary rotor body 6. The main rotor body 5 and the auxiliary rotor body 6 begin to agitate and plasticize the material. When the auxiliary rotor body 6 agitates the material, its protruding parts continuously push the material onto the surface of the scraper blade 2. The surface of the scraper blade 2 has an arc-shaped structure. At this time, the material... The material will not stick to the inner wall of the material processing chamber 4 in large quantities. The blade head 3 at the bottom of the scraper blade 2 rotates with the protruding part of the auxiliary rotor body 6 to push the material back to the middle of the material processing chamber 4. This prevents the material from sticking to the outside of the auxiliary rotor body 6 and the main rotor body 5. When the auxiliary rotor body 6 rotates, the outer counterweight block 81 and the inner counterweight block 82 inside the auxiliary rotor body 6 continuously help the auxiliary rotor body 6 to maintain a stable dynamic balance, thereby preventing the auxiliary rotor body 6 from deviating due to excessive speed. This is the working principle of the internal mixer.

[0037] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An internal mixer capable of improving dynamic balance of a rotor, comprising: The utility model provides an improved material feeding cavity (4), characterized in that the top end of the material feeding cavity (4) is provided with a pressing plate (1), the bottom end of the material feeding cavity (4) is provided with a rotating shaft (7) on both sides, the both ends of the rotating shaft (7) are provided with a main rotor body (5), the middle of the rotating shaft (7) is sleeved with an auxiliary rotor body (6), the both sides of the material feeding cavity (4) are provided with a material scraping blade (2), the bottom end of the material scraping blade (2) is provided with a blade head (3), one end of the main rotor body (5) and the auxiliary rotor body (6) is provided with a protruding part, the inside of the auxiliary rotor body (6) is provided with an auxiliary structure (8). The volume of the auxiliary rotor body (6) is smaller than that of the main rotor body (5), and the top end edge of the protruding part of the auxiliary rotor body (6) is lower than that of the main rotor body (5).

2. The internal mixer capable of improving dynamic balance of a rotor according to claim 1, wherein The middle of the material scraping blade (2) is provided with an arc-shaped convex part, and the thickness of the material scraping blade (2) is greater than that of the blade head (3).

3. The internal mixer capable of improving dynamic balance of a rotor according to claim 1, wherein The number of the material scraping blade (2) and the blade head (3) is equal to that of the auxiliary rotor body (6).

4. The internal mixer capable of improving dynamic balance of a rotor according to claim 1, wherein The auxiliary structure (8) includes an outer weight block (81), an inner weight block (82) and an error prevention sheet (83), the middle of the inside of the auxiliary rotor body (6) is provided with the inner weight block (82), the outside of the inner weight block (82) is provided with the outer weight block (81), the protruding part of the auxiliary rotor body (6) is provided with the error prevention sheet (83) at the connection with the remaining cavity, and the error prevention sheet (83) is in a herringbone shape.

5. The internal mixer capable of improving dynamic balance of a rotor according to claim 1, wherein The number of the outer weight block (81) is greater than that of the inner weight block (82).

6. The internal mixer capable of improving dynamic balance of a rotor according to claim 5, wherein The length of the error prevention sheet (83) is equal to that of the inside of the auxiliary rotor body (6).

7. The internal mixer capable of improving dynamic balance of a rotor according to claim 5, wherein ​

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