Silicone rubber production raw material mill

Abstract

The utility model relates to the technical field of raw material mixing technology of silicone rubber production, disclose raw material mixing machine of silicone rubber production, including mixing mill, two roll cylinders are rotationally connected in the mixing mill, the top of mixing mill is fixedly connected with support plate no.

Description

Technical Field

[0001] This utility model relates to the field of open mill technology, and in particular to an open mill for producing raw materials for silicone rubber. Background Technology

[0002] Silicone rubber, as a high-performance polymer material, is widely used in many fields such as electronics, medical, and aerospace. The open mill plays a crucial role in the silicone rubber production process, serving as the key equipment for mixing raw silicone rubber materials. Through the open mill, raw silicone rubber can be thoroughly mixed with various compounding agents, laying the foundation for subsequent vulcanization and molding processes. Its performance directly impacts the performance and quality of silicone rubber products. Therefore, continuously improving the performance and efficiency of the open mill is of great significance to the development of the silicone rubber industry. With the increasing demands for silicone rubber product performance from various industries, higher challenges are being placed on the technical level of the open mill. Optimizing the mixing effect and improving production efficiency of the open mill has become an important direction for the current research and development of silicone rubber production equipment.

[0003] In existing technologies, open mills for silicone rubber production mainly rely on traditional mechanical structures and technical principles to achieve the mixing of raw materials. They typically employ two relatively rotating rollers, and by adjusting the gap and speed difference between the rollers, the silicone rubber raw materials are subjected to a certain degree of shearing and extrusion between the rollers, thereby achieving mixing. This mechanical structure is simple and low-cost, and can meet the basic needs of silicone rubber production to a certain extent. In terms of power transmission, an electric motor is generally used to drive the rollers to rotate through a reducer or other transmission device to provide the power required for mixing. By controlling the speed and direction of the electric motor, the working state of the rollers can be adjusted. In order to ensure the stability and controllability of the mixing process, a corresponding control system is also equipped to monitor and adjust parameters such as roller temperature and pressure. However, this traditional technical principle and mechanical structure are gradually revealing some shortcomings when facing the increasingly complex demands of silicone rubber production.

[0004] However, existing open mills for silicone rubber production have limited pressure and shear force during the mixing process due to the limitations of their mechanical structure and technical principles. This makes it difficult for silicone rubber raw materials and compounding agents to mix thoroughly under these limited pressures and shear forces, resulting in uneven distribution of the compounding agents within the silicone rubber. This uneven distribution affects the performance stability of silicone rubber products, causing significant differences in physical properties at different points in the product, such as large fluctuations in key indicators like tensile strength and hardness. Furthermore, the uneven mixing effect reduces production efficiency, as multiple mixing processes are required to achieve a relatively good mixing effect. This undoubtedly increases production time and costs, hindering the further development of the silicone rubber production industry. Therefore, an open mill for silicone rubber production raw materials is proposed to address these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a two-roll mill for producing raw materials for silicone rubber, which aims to improve the problem of uneven distribution of compounding agents in silicone rubber during mixing due to limited pressure and shear force in ordinary two-roll mills in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A silicone rubber production raw material open mill includes an open mill with two rollers rotatably connected inside the open mill, a support plate fixedly connected to the top of the open mill, a pressing block provided on the top of the rollers, a lifting assembly provided on the outer wall of the support plate, and a scraping assembly provided inside the open mill.

[0008] The lifting assembly includes a sliding block, the outer wall of which is disposed on one side wall of the support plate. A hydraulic rod is fixedly connected to the top of the support plate, and the output end of the hydraulic rod is fixedly connected to one side of the sliding block. A first sliding groove is formed on one side wall of the support plate, and the outer wall of the sliding block is slidably connected inside the first sliding groove. A second sliding groove is formed inside the sliding block. A connecting rod is fixedly connected to the top of the pressing block, and the outer wall of the connecting rod is slidably connected inside the support plate. A limit post is fixedly connected to the side wall of the connecting rod, and the outer wall of the limit post is slidably connected inside the second sliding groove.

[0009] As a further description of the above technical solution:

[0010] The scraping assembly includes a scraper, the outer wall of which slides inside the open mill.

[0011] As a further description of the above technical solution:

[0012] A motor is fixedly connected inside the open mill, and a rotating plate is fixedly connected to the output end of the motor.

[0013] As a further description of the above technical solution:

[0014] The rotating plate is rotatably connected to a rotating rod on its side wall, and the open mill is fixedly connected to a slide rail inside.

[0015] As a further description of the above technical solution:

[0016] The bottom of the scraper is fixedly connected to a slider, which is internally slidably connected to the outside of the slide rail.

[0017] As a further description of the above technical solution:

[0018] The bottom of the slider is rotatably connected to the top of the rotating rod, and a second support plate is fixedly connected inside the open mill. A third groove is opened inside the second support plate.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the scraper is slidably connected to the inside of the three chute, and the outer wall of the slider is slidably connected to the inside of the open mill.

[0021] The above-mentioned technical solutions in the open mill for producing raw materials for silicone rubber provided in this embodiment of the utility model have at least one of the following technical effects:

[0022] 1. In this utility model, by activating the hydraulic rod, the hydraulic rod drives the sliding block to move, causing its outer wall to slide within the first slide groove. The limiting post is driven, and the outer wall slides along the inner track of the second slide groove, causing the connecting rod to move, which in turn drives the pressing block to move. This achieves the effect of fully mixing the silicone rubber raw material and compounding agent under pressure, solving the problem of uneven distribution of compounding agent in silicone rubber during mixing in ordinary open mills due to limited pressure and shear force, and improving production efficiency.

[0023] 2. In this utility model, the motor is started at this time, which drives the rotating rod to rotate. The rotation of the rotating rod drives the slider to slide on the outer wall of the slide rail. When the slider slides, it drives the scraper to move, so that it can slide above the second support plate, thereby achieving the effect of scraping the fallen raw materials. This solves the problem that the raw materials that fall during the operation of the open mill are not recovered in time, which will cause a large economic loss and improve the quality stability. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0025] Figure 1 This is a perspective view of the open mill for producing raw materials for silicone rubber, as proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the side structure of the open mill for producing raw materials for silicone rubber proposed in this utility model;

[0027] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of the open mill for producing raw materials for silicone rubber proposed in this utility model;

[0029] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0030] Legend:

[0031] 1. Open mill; 2. Roller; 3. Support plate one; 4. Slide chute one; 5. Sliding block; 6. Slide chute two; 7. Limiting post; 8. Hydraulic rod; 9. Connecting rod; 10. Pressing block; 11. Motor; 12. Rotating plate; 13. Rotating rod; 14. Slide rail; 15. Sliding block; 16. Support plate two; 17. Scraper; 18. Slide chute three ribs. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0036] Reference Figure 1 - Figure 3This utility model provides an embodiment of a silicone rubber production raw material open mill, including an open mill 1, which serves as the basic frame of the entire device. Its outer shell is made of high-strength cast steel, which has excellent compressive strength and stability, and can withstand the huge pressure and vibration generated during the open milling process, providing a stable support environment for the internal components. Two rollers 2 are rotatably connected inside the open mill 1. The two rollers 2 cooperate with each other to rotate in opposite directions. When the silicone rubber raw material enters between the two rollers 2, it is subjected to the strong squeezing and shearing force of the rollers 2, which initially realizes the mixing of silicone rubber raw material and compounding agent, laying the foundation for subsequent deep mixing. A support plate 3 is fixedly connected to the top of the open mill 1. The support plate 3 not only provides the installation foundation for the lifting component, but also maintains stability during equipment operation, avoiding the decrease in the working accuracy of the lifting component due to vibration or external force. A pressing block 10 is provided on the top of the roller 2, and a lifting component is provided on the outer wall of the support plate 3. A scraping component is provided inside the open mill 1.

[0037] The lifting assembly includes a sliding block 5, which is made of lightweight aluminum alloy, ensuring sufficient strength while reducing overall weight and improving movement flexibility. The outer wall of the sliding block 5 is set on the side wall of the support plate 3. A hydraulic rod 8 is fixedly connected to the top of the support plate 3, and the output end of the hydraulic rod 8 is fixedly connected to one side of the sliding block 5. The hydraulic rod 8, in conjunction with the sliding block 5, extends and retracts to drive displacement movement, providing the power basis for subsequent pressure application. A groove 4 is formed on the side wall of the support plate 3, and the outer wall of the sliding block 5 is slidably connected inside the groove 4. The groove 4, in conjunction with the sliding block 5, performs horizontal sliding movement, providing precise guidance and ensuring that the sliding block 5 can move along... The predetermined trajectory moves smoothly, avoiding deviation or shaking, ensuring the stability and accuracy of the lifting component. The sliding block 5 has a second sliding groove 6 inside, and the top of the pressing block 10 is fixedly connected to the connecting rod 9. The connecting rod 9 is made of high-quality alloy steel, which has high strength and good toughness. The outer wall of the connecting rod 9 is slidably connected to the inside of the support plate 3. The side wall of the connecting rod 9 is fixedly connected to the limit post 7. The outer wall of the limit post 7 is slidably connected to the inside of the second sliding groove 6. When the sliding block 5 slides in the first sliding groove 4, the second sliding groove 6 cooperates with the limit post 7 to perform relative sliding movement, converting the horizontal movement of the sliding block 5 into the specific trajectory movement of the limit post 7, providing accurate drive for the subsequent movement of the connecting rod 9.

[0038] Specifically, raw rubber is first added to the open mill 1, followed by reinforcing fillers, structure control agents, and other additives. After thin-passing and mixing, the mixture undergoes oven heat treatment and re-milling. After adding vulcanizing agents, it is thin-passed again, left to stand, and re-milled before finally being sheeted. However, in the silicone rubber production process, when the raw materials for silicone rubber production need to be open-milled, the hydraulic rod 8 is activated. After activation, the sliding block 5 is displaced. At this time, the outer wall of the sliding block 5 will slide smoothly inside the first chute 4. As the sliding block 5 moves, the limiting post 7 is also displaced. The outer wall of the limiting post 7 will slide along the track inside the second chute 6. During the sliding of the limiting post 7, the connecting rod 9 is moved, which causes the pressing block 10 to displace. The displacement of the pressing block 10 applies additional pressure to the raw material, allowing the raw material to withstand stronger extrusion and shearing between the rollers 2. This helps to improve the dispersion uniformity of the compounding agents in the silicone rubber, improve the mixing effect, and thus enhance the performance stability of the silicone rubber product, laying a solid foundation for the subsequent production of high-quality silicone rubber products.

[0039] Reference Figure 1 , Figure 4 and Figure 5The scraping assembly includes a scraper 17, which is used to scrape the silicone rubber raw material falling inside the open mill 1, achieving timely material recovery, reducing waste, and ensuring the utilization rate of raw materials in the production process. The outer wall of the scraper 17 is slidably connected to the inside of the open mill 1. A motor 11 is fixedly connected inside the open mill 1. By precisely controlling the speed and direction of the motor 11, the scraper 17 can achieve regular reciprocating motion, achieving the effect of efficiently scraping raw materials. A rotating plate 12 is fixedly connected to the output end of the motor 11. The rotating plate 12 is used to initially convert and transmit the rotational motion of the motor 11. When the motor 11 starts, the rotating plate 12 rotates accordingly, providing a basis for the subsequent movement of the rotating rod 13, achieving the effect of motion transmission and conversion. A rotating rod 13 is rotatably connected to the side wall of the rotating plate 12. The rotating rod 13 is used to convert the circular motion of the rotating plate 12 into the linear motion of the slider 15. When the rotating plate 12 rotates, it drives the rotating rod 13 to move, thereby driving the slider 15. The slide rail 14 is fixedly connected inside the open mill 1 to achieve the effect of motion conversion. The slide rail 14 is used to provide a sliding track for the slider 15, ensuring that the slider 15 can slide smoothly along the predetermined trajectory, avoiding deviation and shaking, and achieving the effect of precise guidance. This ensures that the scraper 17 can accurately scrape the raw material. The bottom of the scraper 17 is fixedly connected to the slider 15, which is internally slidably connected to the outside of the slide rail 14. The bottom of the slider 15 is fixedly connected to the top of the rotating rod 13. The slider 15 cooperates with the rotating rod 13 to realize the transmission and conversion of motion, converting the motion of the rotating rod 13 into the scraping motion of the scraper 17, achieving the effect of efficient scraping of raw materials. The second support plate 16 is fixedly connected inside the open mill 1. The second support plate 16 is used to provide support and guidance for the scraper 17. The second support plate 16 has a groove 18 inside, and the outer wall of the scraper 17 is slidably connected inside the groove 18. The outer wall of the slider 15 is slidably connected inside the open mill 1.

[0040] Specifically, in silicone rubber production, the open mill 1 is a key piece of equipment. However, during its operation, some raw materials inevitably fall off. If these fallen materials are not handled in time, they will not only cause waste but also affect the production environment and efficiency. When raw materials are found to have fallen off, the motor 11 can be started. After the motor 11 starts running, it will generate strong power to drive the rotating rod 13 to rotate. The rotation of the rotating rod 13 is like a power source, which in turn drives the slider 15 to slide on the outer wall of the slide rail 14. As the slider 15 slides, the scraper 17 is also driven to move, so that it slides above the support plate 16. The scraper 17 is like a diligent cleaner, scraping off the fallen raw materials during the sliding process. It can collect the fallen raw materials in time and put them back into production. This not only reduces the waste of raw materials and lowers the production cost, but also makes the entire production process more environmentally friendly and efficient, improving the overall benefits of silicone rubber production.

[0041] Working principle: When it is necessary to open-mill the raw materials for silicone rubber production, the hydraulic rod 8 is activated, which drives the sliding block 5 to move. Then, the outer wall of the sliding block 5 slides inside the first chute 4, which in turn drives the limiting post 7 to move. This causes the outer wall of the limiting post 7 to slide along the track inside the second chute 6, which in turn drives the connecting rod 9 to move, and then drives the pressing block 10 to move. This applies additional pressure to the raw materials, making them subject to stronger extrusion and shearing between the rollers 2. This helps to improve the dispersion uniformity of the compounding agents in the silicone rubber, improve the mixing effect, and thus enhance the performance stability of the silicone rubber product.

[0042] During the operation of the open mill 1, some raw materials will fall off. At this time, the motor 11 is started, which drives the rotating rod 13 to rotate, and then drives the slider 15 to slide on the outer wall of the slide rail 14. At the same time, the scraper 17 is displaced so that it slides above the support plate 16, thus scraping off the raw materials. This allows the fallen raw materials to be collected in time and put back into production, reducing the waste of raw materials and thus reducing production costs.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A two-roll mill for producing raw materials for silicone rubber, comprising a two-roll mill (1), characterized in that: The open mill (1) has two rollers (2) rotatably connected inside. The top of the open mill (1) is fixedly connected to a support plate (3). The top of the rollers (2) is provided with a pressing block (10). The outer wall of the support plate (3) is provided with a lifting assembly. The open mill (1) is provided with a scraping assembly inside. The lifting assembly includes a sliding block (5), the outer wall of which is disposed on the side wall of the support plate (3), a hydraulic rod (8) is fixedly connected to the top of the support plate (3), the output end of the hydraulic rod (8) is fixedly connected to one side of the sliding block (5), a sliding groove (4) is provided on the side wall of the support plate (3), the outer wall of the sliding block (5) is slidably connected to the inside of the sliding groove (4), a second sliding groove (6) is provided inside the sliding block (5), a connecting rod (9) is fixedly connected to the top of the pressing block (10), the outer wall of the connecting rod (9) is slidably connected to the inside of the support plate (3), a limiting post (7) is fixedly connected to the side wall of the connecting rod (9), and the outer wall of the limiting post (7) is slidably connected to the inside of the second sliding groove (6).

2. The open mill for producing raw materials for silicone rubber according to claim 1, characterized in that: The scraping assembly includes a scraper (17), the outer wall of which is slidably connected to the inside of the open mill (1).

3. The open mill for producing raw materials for silicone rubber according to claim 2, characterized in that: The open mill (1) is fixedly connected to a motor (11), and a rotating plate (12) is fixedly connected to the output end of the motor (11).

4. The open mill for producing raw materials for silicone rubber according to claim 3, characterized in that: The rotating plate (12) is rotatably connected to the side wall of the rotating rod (13), and the open mill (1) is fixedly connected to the slide rail (14).

5. The open mill for producing raw materials for silicone rubber according to claim 4, characterized in that: The bottom of the scraper (17) is fixedly connected to a slider (15), and the slider (15) is internally slidably connected to the outside of the slide rail (14).

6. The open mill for producing raw materials for silicone rubber according to claim 5, characterized in that: The bottom of the slider (15) is rotatably connected to the top of the rotating rod (13). The open mill (1) is fixedly connected to a support plate two (16), and the support plate two (16) has a sliding groove three (18) inside.

7. The open mill for producing raw materials for silicone rubber according to claim 6, characterized in that: The outer wall of the scraper (17) is slidably connected to the inside of the three chute (18), and the outer wall of the slider (15) is slidably connected to the inside of the open mill (1).

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