A pre-treatment device for a composite rubber compound

Abstract

The utility model relates to composite rubber material preparation pretreatment technical field, concretely to a kind of composite rubber material preparation pretreatment equipment, including batching equipment, and batching equipment is fixedly provided with pretreatment mechanism, and the pretreatment mechanism includes screening equipment, preheating equipment, crushing equipment, vulcanization equipment, open mill, internal mixer and reaction kettle.The utility model accurately measures and mixes various rubber raw materials and additives by batching equipment, ensure the accuracy of formula, enter screening equipment by pipeline, screening equipment is used to screen out the rubber particles meeting the requirements, remove too large or too small particles, then enter preheating equipment, preheating equipment is preheated to raw material before rubber processing by heating device, improve processing efficiency and product quality, then enter crushing equipment, and crushing equipment is crushed into appropriate particle size to facilitate subsequent processing and mixing.

Description

Technical Field

[0001] This utility model relates to the field of pretreatment technology for composite rubber material preparation, specifically to a pretreatment device for composite rubber material preparation. Background Technology

[0002] With the development of modern electronics, information technology, and high technology, especially the rapid development of microelectronics integration technology, the heat dissipation problem of devices has become increasingly important. High thermal conductivity composite materials not only provide a safe and reliable heat dissipation path for electronic components, but also play a role in insulation, shock absorption, moisture protection, and corrosion resistance. The thermal conductivity pathways formed by thermally conductive fillers in thermally conductive composite materials greatly affect the thermal conductivity of the composite material.

[0003] Silicone rubber is a special synthetic rubber, a special polymer material that combines the properties of organic polymers and inorganic silicon compounds. Due to the high bond energy and large bond angle of the Si-O bond, the soft Si-O-Si main chain, and the shielding effect of the side chain methyl (or phenyl) on the main chain, these special chain structures endow organosilicon polymers with many excellent properties, such as excellent thermal stability, extremely low glass transition temperature, very low surface tension and surface energy, surface hydrophobicity, weather resistance, high air permeability, and excellent chemical inertness to media such as lubricating oils. It also has a wide operating temperature range (-50℃ to 300℃). However, unfilled silicone rubber has very poor thermal conductivity, generally only 0.165 W / (m·K). Its thermal conductivity can be improved by filling it with thermally conductive materials (aluminum oxide, aluminum nitride, boron nitride, etc.). The existing solutions for improving the thermal conductivity of silicone rubber are basically to add thermally conductive fillers to the silicone rubber matrix to achieve the purpose of improving thermal conductivity, such as the invention patents with Chinese patent numbers ZL20081146554.X and ZL102220006.X. The problems are: (1) The viscosity of the resin polymer used is relatively high, and the viscosity increases after adding fillers. (1) The degree is greater; (2) The filler is prone to agglomeration and sedimentation, and the amount of thermally conductive filler added is limited, which affects the improvement of the thermal conductivity of the obtained material; (3) To achieve the ideal thermal conductivity effect, the amount of thermally conductive material usually needs to be greater than 70-80wt%, which may degrade the mechanical properties of silicone rubber and affect other aspects of its performance; (4) The preparation process is relatively complicated, requiring multiple heating and stirring or heating and vulcanization, which consumes a lot of energy and is not conducive to energy conservation and emission reduction; (5) Most products need to be molded or potted and vulcanized, which is complicated and inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a pretreatment device for preparing composite rubber materials to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pretreatment device for preparing composite rubber materials includes a batching device. A pretreatment mechanism is fixedly installed on the batching device. The pretreatment mechanism includes a screening device, a preheating device, a crushing device, a vulcanizing device, a two-roll mill, a three-way mixer, and a reaction vessel. A screening device is fixedly installed on the left side of the pretreatment mechanism. A preheating device is fixedly installed on the left side of the screening device. Heating devices are fixedly installed at both ends of the preheating device. A crushing device is fixedly installed on the left side of the preheating device. A vulcanizing device is fixedly installed on the left side of the crushing device. A two-roll mill is fixedly installed on the left side of the vulcanizing device. A three-way mixer is fixedly installed on the left side of the two-roll mill. A reaction vessel is fixedly installed on the left side of the three-way mixer. A cooling device is fixedly installed on the left side of the reaction vessel. A conveyor belt is fixedly installed on the left side of the cooling device. An extruder is fixedly installed at the top of the conveyor belt.

[0007] The crushing equipment is equipped with a crushing device inside, which crushes the rubber raw material into appropriate particle sizes for subsequent processing and mixing.

[0008] The internal mixer has a mixing chamber fixedly installed inside, and a rotor is fixedly installed in the mixing chamber. The rubber is sheared and mixed by the rotating rotor and the mixing chamber to achieve the desired properties.

[0009] The crushing equipment, vulcanizing equipment, open mill, internal mixer, and reaction vessel are all equipped with detection devices to monitor the internal reaction pressure and prevent excessive pressure from causing danger.

[0010] Pipes are fixedly installed between the various devices to connect them.

[0011] Each device is equipped with a motor to control its normal operation.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This pretreatment equipment for preparing composite rubber compounds includes a batching device that precisely measures and mixes various rubber raw materials and additives to ensure the accuracy of the formulation. The raw materials pass through a pipeline to a screening device, which filters out rubber granules that meet the requirements, removing overly large or small particles. Next, the materials enter a preheating device, which preheats the raw materials before processing to improve processing efficiency and product quality. Then, the materials enter a pulverizing device, which pulverizes the rubber raw materials into appropriate particle sizes for subsequent processing and mixing. Finally, the materials enter a vulcanizing device, which vulcanizes the rubber to achieve better results. The rubber is first processed to determine its physical properties and chemical stability, then fed into an open mill. The open mill repeatedly rolls and cuts the rubber to plasticize and mix it. Next, it enters an internal mixer, where a rotating rotor and mixing chamber shear and mix the rubber to achieve the desired properties. Then, it enters a reaction vessel, a container for chemical reactions, which provides suitable temperature, pressure, and stirring conditions to promote the preparation of the compound rubber material. Next, it enters a cooling device to cool the processed rubber, allowing it to solidify and set rapidly. Finally, it is conveyed to an extruder to extrude the compound rubber material into specific shapes and sizes.

[0014] 2. This type of pretreatment equipment for compound rubber compound preparation, specifically the internal mixer, works by subjecting the rubber to intense shearing, compression, and mixing within the mixing chamber using two opposing rotating rotors. The rotor shape and speed design ensure thorough mixing of the rubber within the mixing chamber, while simultaneously achieving uniform dispersion with various added additives and fillers. The open mill works by relying on two parallel rollers rotating in opposite directions at different speeds. The rubber is subjected to compression and shearing between the rollers, and through repeated rolling and cutting, the rubber gradually softens and plasticizes, achieving uniform mixing with various compounding agents. In the pretreatment of compound rubber compound preparation, the reaction vessel, through its heating or cooling jacket, stirring device, and sealed container structure, provides the necessary temperature, pressure, and a favorable reaction environment for the chemical reaction, promoting the reaction between the rubber and relevant reagents, thereby altering the rubber's properties. The extruder works by using a rotating screw within the barrel to push the rubber material forward. During this pushing process, the rubber is subjected to shearing, compression, and mixing by the screw, while a heating device outside the barrel provides heat, causing the rubber to reach a molten state and be extruded from the die head to form a specific shape. Vulcanizing equipment typically utilizes high temperatures and vulcanizing agents to cause cross-linking reactions in rubber molecular chains, thereby improving the strength, elasticity, and aging resistance of the rubber. Different pretreatment equipment for compound rubber materials, through their unique structures and operating methods, work together to pretreat the rubber materials, providing a good foundation for subsequent processing and molding procedures. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the installation of the transmission rod structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the stepper motor structure installation of this utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.

[0019] In the diagram: 1. Batching equipment; 2. Screening equipment; 3. Preheating equipment; 4. Heating device; 5. Crushing equipment; 6. Vulcanizing equipment; 7. Open mill; 8. Internal mixer; 9. Reactor; 10. Cooling equipment; 11. Conveyor belt; 12. Extruder; 13. Crushing device; 14. Internal mixing chamber; 15. Rotor; 16. Detection device; 17. Pipeline; 18. Motor. Detailed Implementation

[0020] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0021] A pretreatment device for preparing composite rubber materials includes a batching device 1. A pretreatment mechanism is fixedly installed on the batching device 1. The pretreatment mechanism includes a screening device 2, a preheating device 3, a crushing device 5, a vulcanizing device 6, a two-roll mill 7, a three-way mixer 8, and a reaction vessel 9. The screening device 2 is fixedly installed on the left side of the pretreatment mechanism. The preheating device 3 is fixedly installed on the left side of the screening device 2. Heating devices 4 are fixedly installed at both ends of the preheating device 3. The crushing device 5 is fixedly installed on the left side of the preheating device 3. The vulcanizing device 6 is fixedly installed on the left side of the crushing device 5. The two-roll mill 7 is fixedly installed on the left side of the vulcanizing device 6. The three-way mixer 8 is fixedly installed on the left side of the two-roll mill 7. The reaction vessel 9 is fixedly installed on the left side of the three-way mixer 8. A cooling device 10 is fixedly installed on the left side of the reaction vessel 9. A conveyor belt 11 is fixedly installed on the left side of the cooling device 10. An extruder 12 is fixedly installed at the top of the conveyor belt 11.

[0022] The crushing equipment 5 is equipped with a crushing device 13, which crushes the rubber raw material into appropriate particle sizes for subsequent processing and mixing.

[0023] The internal mixer 8 has a mixing chamber 14 fixedly installed inside, and a rotor 15 is fixedly installed in the mixing chamber 14. The rotating rotor 15 and the mixing chamber 14 shear and mix the rubber to achieve the desired properties.

[0024] The crushing equipment 5, vulcanizing equipment 6, open mill 7, internal mixer 8, and reaction vessel 9 are all fixedly equipped with detection devices 16 to detect the internal reaction pressure of the equipment and prevent the danger caused by excessive pressure.

[0025] Pipes 17 are fixedly installed between the various devices for connecting them.

[0026] Each device is equipped with a motor 18 to control the normal operation of each device.

[0027] In this embodiment, a pretreatment device for preparing composite rubber materials is used. The batching device 1 precisely measures and mixes various rubber raw materials and additives to ensure the accuracy of the formula. The mixture enters the screening device 2 through pipe 17. The screening device 2 is used to screen out rubber particles that meet the requirements, removing particles that are too large or too small. Next, the mixture enters the preheating device 3. The preheating device 3 uses a heating device 4 to preheat the raw materials before rubber processing, improving processing efficiency and product quality. Then, the mixture enters the pulverizing device 5, which pulverizes the rubber raw materials into appropriate particle sizes for subsequent processing and mixing. Finally, the mixture enters the vulcanizing device 6, which vulcanizes the rubber to obtain… To achieve better physical properties and chemical stability, the rubber then enters the open mill 7, where it undergoes repeated rolling and cutting to plasticize and mix. Next, it enters the internal mixer 8, where rotating rotors 15 and the mixing chamber 14 shear and mix the rubber to achieve the desired properties. It then enters the reaction vessel 9, a container for chemical reactions, providing suitable temperature, pressure, and stirring conditions to promote the preparation of the compound rubber compound. Following this, it enters the cooling device 10 to cool the processed rubber, allowing it to quickly solidify and set. Finally, it enters the extruder 12 via conveyor belt 11 to extrude the compound rubber compound into specific shapes and sizes. The internal mixer 8 works by using two opposing rotating rotors 15 to intensely shear, squeeze, and stir the rubber within the mixing chamber 14. The shape and speed design of the rotors 15 ensure that the rubber is thoroughly mixed within the mixing chamber 14, while simultaneously dispersing evenly with various added additives and fillers. The open mill 7 works by relying on two parallel rollers rotating in opposite directions at different speeds. Rubber is subjected to compression and shearing between rollers. After repeated rolling and cutting, the rubber gradually softens and plasticizes, achieving uniform mixing with various compounding agents. In the pretreatment of compound rubber materials, the reaction vessel 9, through its heating or cooling jacket, stirring device, and sealed container structure, provides the necessary temperature, pressure, and a favorable reaction environment for the chemical reaction, promoting the reaction between the rubber and relevant reagents, thereby altering the rubber's properties. The extruder 12 works by using the rotation of the screw within the barrel to push the rubber material forward. During this pushing process, the rubber is subjected to shearing, compression, and mixing by the screw, while the heating device 4 outside the barrel provides heat, causing the rubber to reach a molten state and be extruded from the die head to form a specific shape. The vulcanizing equipment 6 typically utilizes high temperature and vulcanizing agents to cause cross-linking reactions in the rubber molecular chains, thereby improving the rubber's strength, elasticity, and aging resistance. Different pretreatment equipment for compound rubber materials, through their unique structures and operating methods, collectively complete the pretreatment of the rubber material, providing a good foundation for subsequent processing and molding processes.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pretreatment device for preparing composite rubber materials, comprising a batching device (1), wherein the batching device (1) is fixedly equipped with a pretreatment mechanism, the pretreatment mechanism comprising a screening device (2), a preheating device (3), a crushing device (5), a vulcanizing device (6), a two-roll mill (7), a three-stage mixer (8), and a reaction vessel (9), wherein the screening device (2) is fixedly installed on the left side of the pretreatment mechanism, and the preheating device (3) is fixedly installed on the left side of the screening device (2), wherein heating devices (4) are fixedly installed at both ends of the preheating device (3), the preheating device (3) being further provided with a preheating device (4). A crushing device (5) is fixedly installed on the left side of the heating device (3). A vulcanizing device (6) is fixedly installed on the left side of the crushing device (5). A two-roll mill (7) is fixedly installed on the left side of the vulcanizing device (6). A mixing mill (8) is fixedly installed on the left side of the two-roll mill (7). A reaction vessel (9) is fixedly installed on the left side of the mixing mill (8). A cooling device (10) is fixedly installed on the left side of the reaction vessel (9). A conveyor belt (11) is fixedly installed on the left side of the cooling device (10). An extruder (12) is fixedly installed at the top of the conveyor belt (11).

2. The pretreatment equipment for preparing composite rubber materials according to claim 1, characterized in that: The crushing equipment (5) has a crushing device (13) fixedly installed inside.

3. The pretreatment equipment for preparing composite rubber materials according to claim 1, characterized in that: The internal mixer (8) has a mixing chamber (14) fixedly installed inside, and a rotor (15) is fixedly installed in the mixing chamber (14).

4. The pretreatment equipment for preparing composite rubber materials according to claim 1, characterized in that: The crushing equipment (5), vulcanizing equipment (6), open mill (7), internal mixer (8), and reaction vessel (9) are all fixedly equipped with detection devices (16).

5. The pretreatment equipment for preparing composite rubber materials according to claim 1, characterized in that: Pipes (17) are fixedly installed between the various devices.

6. The pretreatment equipment for preparing composite rubber materials according to claim 1, characterized in that: Each of the devices is fixedly equipped with a motor (18).

Images