Tire rubber internal mixing and distributing mechanism
By designing a tire rubber mixing and diversion mechanism, and utilizing a combination of inclined guide plates, vibrating screens, and external rotating discharge discs, the problem of uneven distribution of rubber compounds and auxiliary materials in rubber mixing was solved, achieving faster and more uniform mixing, and improving production efficiency and rubber quality.
Patent Information
- Application Number
- CN202422654774.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-01
AI Technical Summary
Traditional rubber mixing equipment suffers from problems such as uneven distribution of rubber and auxiliary materials, long mixing time, high energy consumption, and severe equipment wear during the mixing process. In particular, the dispersion of auxiliary materials such as carbon black is difficult, which affects tire performance and production efficiency.
A tire rubber mixing and diversion mechanism was designed, including a solid rubber guide table, an auxiliary material diversion mechanism, and an external rotating discharge disc. Through the inclined guide plate, vibrating screen disc, and motor-driven external rotating discharge disc, the auxiliary materials are diverted and sprayed evenly, shortening the mixing time.
This process achieves uniform mixing of rubber and auxiliary materials, shortens mixing time, improves production efficiency, reduces energy consumption, and ensures the stability of rubber quality and the uniformity of tire performance.
Smart Images
Figure CN223532757U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rubber mixing technology, and specifically relates to a tire rubber mixing and diversion mechanism. Background Technology
[0002] In the tire manufacturing industry, rubber mixing is a crucial step, directly impacting tire performance and quality. With the continuous development of the automotive industry, the performance requirements for tires are becoming increasingly stringent, driving continuous progress and innovation in tire rubber mixing technology. However, several technical problems remain to be solved in the current field of rubber mixing, with mixing uniformity and long mixing times being two prominent issues.
[0003] Traditional rubber mixing equipment has certain limitations in its structure and working principle, making it difficult to achieve thorough and uniform mixing of rubber compounds and auxiliary materials during the mixing process. In the mixing process, rubber raw materials typically need to be mixed with various auxiliary materials such as carbon black, vulcanizing agents, and accelerators. These auxiliary materials have different physical and chemical properties, and their dispersion during the mixing process is also quite difficult. For example, carbon black is an important rubber reinforcing agent, but it has strong agglomeration properties. If it cannot be effectively dispersed in the rubber, it will lead to uneven local performance of the tire, affecting key properties such as wear resistance and tear resistance.
[0004] In existing internal mixing units, the method of adding raw materials is often quite simple and direct. Generally, rubber raw materials and auxiliary materials are fed into the internal mixer together, and then mixed by the rotor. However, this method easily leads to uneven distribution of raw materials within the mixer. Some areas may experience concentrated accumulation of auxiliary materials, while other areas may have relatively low auxiliary material content. This is because, without a proper diversion and guidance mechanism, the flow of raw materials within the mixer is chaotic, making uniform mixing impossible. Furthermore, due to significant differences in density and particle size among different raw materials, their movement speed and direction vary during mixing, further increasing the difficulty of achieving uniform mixing. Therefore, to achieve a certain degree of mixing uniformity, traditional internal mixing units often require a long mixing time. This not only reduces production efficiency but also increases energy consumption and equipment wear. Prolonged mixing processes may lead to excessive shearing and damage of rubber molecular chains, thus affecting rubber properties. In addition, prolonged high-temperature mixing can also cause problems such as thermal aging of rubber, further reducing product quality. Utility Model Content
[0005] In view of this, the present invention provides a tire rubber mixing and diversion mechanism, which can improve the uniformity of the mixed colloid and auxiliary materials and reduce the mixing time.
[0006] This utility model is implemented as follows:
[0007] This utility model provides a tire rubber mixing and diversion mechanism, including a mixing and diversion mechanism. The bottom of the mixing and diversion mechanism is connected to the rubber mixing chamber. The mixing and diversion mechanism includes a solid rubber guide table and an auxiliary material diversion mechanism. The top of the solid rubber guide table is a downward-sloping guide plate. A groove is formed in the middle of the guide plate, and an auxiliary material discharge port is formed in the groove. The auxiliary material diversion mechanism includes a vibrating screen and an external rotating discharge plate. Multiple diversion channels are provided on the outer side of the vibrating screen. The bottom of the diversion channels is connected to the external rotating discharge plate. The external rotating discharge plate is fixedly connected to the output shaft of a motor.
[0008] The technical effects of the tire rubber mixing and diversion mechanism provided by this utility model are as follows: By setting up the mixing and diversion mechanism, the rubber compound and auxiliary materials are diverted and fed separately. The auxiliary material diversion mechanism sprays the auxiliary materials in an external spiral manner, so that the auxiliary materials are mixed more evenly in the rubber compound in the mixing chamber, shortening the mixing time and improving the efficiency of the mixing.
[0009] Based on the above technical solution, the tire rubber mixing and diversion mechanism of this utility model can be further improved as follows:
[0010] The outer width of the groove is greater than the inner width, and the outer width of the groove is less than half the outer width of the guide plate.
[0011] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the wider opening of the outer groove allows the poured auxiliary materials to fall into the auxiliary material discharge port through the groove, which plays a role in the initial collection and guidance of the auxiliary materials. Then, the auxiliary materials enter the distribution channel through the auxiliary material discharge port and come into contact with the vibrating screen plate. The vibrating screen plate disperses these auxiliary materials and disperses them into the distribution channels of each component.
[0012] Furthermore, the bottom end of the auxiliary material discharge port is connected to the distribution channel through a distribution channel, and the vibrating screen is located at the bottom end of the distribution channel.
[0013] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting up a vibrating screen, the auxiliary materials are dispersed, avoiding the situation of excessively high local concentration of auxiliary materials during subsequent mixing. Furthermore, the vibration can increase the spacing between auxiliary material particles, breaking up any possible agglomerates and allowing the auxiliary materials to disperse into the flow channels of each component, thereby shortening the mixing and internal mixing time, making the mixing more uniform, and the quality more stable.
[0014] Furthermore, the motor is disposed in the cavity in the middle of the diversion channel and is fixedly connected to the bottom of the vibration isolation layer in the cavity.
[0015] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a motor to drive the outer rotating throwing disc to rotate, since the auxiliary materials inside the diversion channel will gradually enter the outer rotating separation chamber, the rotation of the outer rotating throwing disc will throw these auxiliary materials out of the outer rotating separation chamber and mix them with the rubber material in the bottom mixing chamber.
[0016] Furthermore, the bottom end of the diversion channel protrudes from the bottom of the mixing and diversion mechanism, and a convex wall is provided above the outer rotating material throwing disc to cover the protruding part of the diversion channel.
[0017] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a convex wall above the outer rotating material throwing plate, it is used to collect the auxiliary materials flowing out of the diversion channel.
[0018] Furthermore, a gap is provided between the convex wall and the diversion channel, the gap being used to allow the external rotating material throwing disc to rotate around the outside of multiple sets of the diversion channels.
[0019] Furthermore, the external rotating material throwing disc is internally divided into multiple external rotating separation chambers by multiple sets of guide plates. The bottom end of the guide plate is fixedly connected to the bottom inner wall of the external rotating material throwing disc, and the top end has a gap with the inner wall of the external rotating material throwing disc. The gap is used to prevent material accumulation.
[0020] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a guide plate, the auxiliary materials entering the outer swirl separation chamber can be thrown out of the discharge port in coordination with the rotation of the outer swirl throwing disc, thereby mixing with the rubber material inside the mixing chamber.
[0021] Furthermore, each of the outer periphery of the outer rotating material throwing disc is provided with a discharge port corresponding to the position of the outer rotating separation chamber. The discharge port is used to throw out the auxiliary material inside the outer rotating separation chamber by rotation.
[0022] Furthermore, the guide plate is arc-shaped.
[0023] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting an arc-shaped guide plate, the flow path of the auxiliary material can be guided, so that the auxiliary material forms a rotating flow in the cavity. Combined with the rotation of the external rotating throwing disc, the auxiliary material can be thrown out of the outlet more effectively.
[0024] Furthermore, the entrance to the diversion channel is set at a downward angle of 45 degrees.
[0025] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: by setting a 45-degree inclined inlet, the auxiliary materials can enter the diversion channel more smoothly under the combined action of their own gravity and the vibration of the subsequent vibrating screen, avoiding blockage at the inlet and ensuring the continuity of auxiliary material conveying.
[0026] Compared with existing technologies, the beneficial effects of the tire rubber mixing and diversion mechanism provided by this utility model are as follows: By setting up the mixing and diversion mechanism, the rubber compound and auxiliary materials are diverted and discharged. The auxiliary material diversion mechanism uses an externally rotating spraying and discharging mechanism to achieve more uniform mixing of the auxiliary materials with the rubber compound in the mixing chamber, shortening the mixing time and improving the efficiency of the mixing process. Through the wide opening of the outer groove, the poured auxiliary materials can fall into the auxiliary material discharge port in a concentrated manner through the groove, playing a role in the initial collection and guidance of the auxiliary materials. Then, the auxiliary materials enter the distribution channel through the auxiliary material discharge port and come into contact with the vibrating screen plate. The vibrating screen plate disperses these auxiliary materials and makes them more uniform. The materials are dispersed into the flow channels of each component. A vibrating screen is used to disperse the excipients, preventing excessively high concentrations of excipients in localized areas during subsequent mixing. Vibration also increases the spacing between excipient particles, breaking up any potential clumps and allowing the excipients to disperse into the flow channels of each component. This shortens the mixing and internal mixing time, resulting in more uniform mixing and more stable quality. A motor is used to drive the outer rotary discharge disc to rotate. Since the excipients inside the flow channels gradually flow into the outer rotary separation chamber, the rotation of the outer rotary discharge disc throws these excipients out of the outer rotary separation chamber and mixes them with the rubber compound in the bottom mixing chamber. Attached Figure Description
[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of a tire rubber mixing and diversion mechanism.
[0029] Figure 2 This is a cross-sectional schematic diagram of a tire rubber mixing and diversion mechanism;
[0030] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;
[0031] Figure 4 This is a schematic diagram of the external rotation separation chamber;
[0032] The attached diagram lists the components represented by each number as follows:
[0033] 10. Internal mixing and diversion mechanism; 11. Solid rubber guide table; 12. Auxiliary material diversion mechanism; 13. Groove; 14. Auxiliary material discharge port; 15. Vibrating screen plate; 16. External rotating material throwing plate; 17. Diversion channel; 18. Motor; 19. Vibration isolation layer; 20. Guide plate; 21. External rotating separation chamber; 22. Convex wall. Detailed Implementation
[0034] 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.
[0035] like Figure 1-4 The image shows an embodiment of a tire rubber mixing and diversion mechanism provided by this utility model. In this embodiment, it includes a mixing and diversion mechanism 10, the bottom of which is connected to a rubber mixing chamber. The mixing and diversion mechanism 10 includes a solid rubber guide table 11 and an auxiliary material diversion mechanism 12. The top of the solid rubber guide table 11 is a downward-sloping guide plate, and a groove 13 is provided in the middle of the guide plate. An auxiliary material discharge port 14 is provided in the groove 13. The auxiliary material diversion mechanism 12 includes a vibrating screen 15 and an outer rotating material throwing plate 16. Multiple diversion channels 17 are provided on the outer side of the vibrating screen 15. The bottom of the diversion channel 17 is connected to the outer rotating material throwing plate 16. The outer rotating material throwing plate 16 is fixedly connected to the output shaft of a motor 18.
[0036] The top side of the mixing and diversion mechanism 10 is movably connected to a bin cover, which serves as a seal.
[0037] In use, the main body of the rubber compound and granular or powdered auxiliary materials are added into the mixing and diverting mechanism 10. The main body of the rubber compound is guided by the guide plate on the mixing and diverting mechanism 10 and falls into the mixing chamber at the bottom. The auxiliary materials fall through the groove 13 into the auxiliary material discharge port 14 and enter the distribution channel. After being vibrated by the vibrating screen 15, they are dispersed to the outer periphery and fall into the respective group distribution channels 17. At this time, the motor 18 drives the outer rotating throwing plate 16 to rotate. As the outer rotating throwing plate 16 rotates, the auxiliary materials that have entered the outer rotating separation chamber 21 are thrown out of the outer rotating separation chamber 21 under the action of centrifugal force. These auxiliary materials are evenly sprayed on the surface of the rubber compound in the mixing chamber, which improves the dispersion of the auxiliary materials in the rubber compound.
[0038] In the above technical solution, the outer width of the groove 13 is greater than the inner width, and the outer width of the groove 13 is less than half of the outer width of the guide plate.
[0039] Furthermore, in the above technical solution, the bottom end of the auxiliary material discharge port 14 is connected to the diversion channel 17 through the material distribution channel, and the vibrating screen plate 15 is set at the bottom end of the material distribution channel.
[0040] Furthermore, in the above technical solution, the motor 18 is installed in the cavity in the middle of the diversion channel 17 and is fixedly connected to the bottom of the vibration isolation layer 19 in the cavity.
[0041] The vibration isolation layer 19 includes a buffer layer and a fixing layer. The buffer layer is made of high-temperature resistant buffer material and is used to contact one side of the base of the vibrating screen 15. The fixing layer is used to fix the motor 18 to the end of the motor by bolts.
[0042] Furthermore, in the above technical solution, the bottom end of the diversion channel 17 protrudes from the bottom of the mixing diversion mechanism 10, and a convex wall 22 is provided above the outer rotating material throwing plate 16 to wrap the protruding part of the diversion channel 17.
[0043] Furthermore, in the above technical solution, a gap is provided between the convex wall 22 and the diversion channel 17, the gap being used to allow the outer rotating throwing disc 16 to rotate around the outside of the multi-group diversion channel 17.
[0044] Furthermore, in the above technical solution, the outer rotating material throwing disc 16 is divided into multiple outer rotating separation chambers 21 by multiple sets of guide plates 20. The bottom end of the guide plate 20 is fixedly connected to the bottom inner wall of the outer rotating material throwing disc 16, and the top end is left with a gap from the inner wall of the outer rotating material throwing disc 16. The gap is used to prevent material accumulation.
[0045] Furthermore, in the above technical solution, a discharge port is provided on the outer periphery of the outer rotating material throwing disc 16 at each position corresponding to an outer rotating separation chamber 21. The discharge port is used to throw out the auxiliary material inside the outer rotating separation chamber 21 by rotation.
[0046] Furthermore, in the above technical solution, the guide plate 20 is arc-shaped.
[0047] Furthermore, in the above technical solution, the inlet of the diversion channel 17 is set at a downward angle of 45 degrees.
[0048] Specifically, the principle of this utility model is as follows: In use, the main body of the rubber compound and granular or powdered auxiliary materials are added into the internal mixing and diverting mechanism 10. The main body of the rubber compound is guided by the guide plate on the internal mixing and diverting mechanism 10 and falls into the bottom mixing chamber. The auxiliary materials fall through the groove 13 into the auxiliary material discharge port 14 and enter the material distribution channel. After being vibrated by the vibrating screen plate 15, they are dispersed to the outer periphery and fall into the respective group distribution channels 17. At this time, the motor 18 drives the outer rotating throwing plate 16 to rotate. As the outer rotating throwing plate 16 rotates, the auxiliary materials that have entered the outer rotating separation chamber 21 are thrown out of the outer rotating separation chamber 21 under the action of centrifugal force. These auxiliary materials are evenly sprayed on the surface of the rubber compound in the mixing chamber, which improves the dispersion of the auxiliary materials in the rubber compound.
Claims
1. A tire rubber mixing and diversion mechanism, comprising a mixing and diversion mechanism (10), wherein the bottom of the mixing and diversion mechanism (10) is connected to a rubber mixing chamber, characterized in that, The mixing and diversion mechanism (10) includes a solid rubber guide table (11) and an auxiliary material diversion mechanism (12). The top of the solid rubber guide table (11) is a downward-sloping guide plate. A groove (13) is provided in the middle of the guide plate. An auxiliary material discharge port (14) is provided in the groove (13). The auxiliary material diversion mechanism (12) includes a vibrating screen (15) and an outer rotating throwing plate (16). Multiple diversion channels (17) are provided on the outer side of the vibrating screen (15). The bottom of the diversion channel (17) is connected to the outer rotating throwing plate (16). The outer rotating throwing plate (16) is fixedly connected to the output shaft of the motor (18).
2. The tire rubber mixing and diversion mechanism according to claim 1, characterized in that, The outer width of the groove (13) is greater than the inner width, and the outer width of the groove (13) is less than half the outer width of the guide plate.
3. The tire rubber mixing and diversion mechanism according to claim 2, characterized in that, The bottom end of the auxiliary material discharge port (14) is connected to the diversion channel (17) through the material distribution channel, and the vibrating screen (15) is located at the bottom end of the material distribution channel.
4. The tire rubber mixing and diversion mechanism according to claim 3, characterized in that, The motor (18) is located in the cavity in the middle of the diversion channel (17) and is fixedly connected to the bottom of the vibration isolation layer (19) in the cavity.
5. The tire rubber mixing and diversion mechanism according to claim 4, characterized in that, The bottom end of the diversion channel (17) protrudes from the bottom of the mixing diversion mechanism (10), and a convex wall (22) is provided above the outer rotating material throwing plate (16) to wrap the protruding part of the diversion channel (17).
6. The tire rubber mixing and diversion mechanism according to claim 5, characterized in that, A gap is provided between the convex wall (22) and the diversion channel (17), the gap being used to allow the outer rotating throwing disc (16) to rotate around the outside of multiple sets of the diversion channels (17).
7. A tire rubber mixing and diversion mechanism according to claim 6, characterized in that, The external rotating material throwing disc (16) is divided into multiple external rotating separation chambers (21) by multiple sets of guide plates (20). The bottom end of the guide plate (20) is fixedly connected to the bottom inner wall of the external rotating material throwing disc (16), and the top end is left with a gap to the inner wall of the external rotating material throwing disc (16). The gap is used to prevent material accumulation.
8. A tire rubber mixing and diversion mechanism according to claim 7, characterized in that, Each of the outer circumferences of the outer rotating material throwing disc (16) has a discharge port corresponding to the position of each outer rotating separation chamber (21). The discharge port is used to throw out the auxiliary material inside the outer rotating separation chamber (21) by rotation.
9. A tire rubber mixing and diversion mechanism according to claim 8, characterized in that, The guide plate (20) is arc-shaped.
10. A tire rubber mixing and diversion mechanism according to claim 9, characterized in that, The entrance to the diversion channel (17) is set at a downward angle of 45 degrees.