Vacuum kneader for producing ceramifiable silicone rubber and method of use thereof

Abstract

The application discloses a kind of vacuum kneader for ceramicized silicone rubber production, including kneader shell, the auxiliary sampling material taking mechanism is equipped in the kneader shell, the sealing mechanism for sealing the internal space of material taking mechanism is equipped on the material taking mechanism, the first drive motor for driving the rotation of internal component of material taking mechanism is equipped on the kneader shell, the second drive motor for driving the rotation of sealing mechanism is equipped on the kneader shell.The application overcomes the deficiencies of the prior art, the design is reasonable, while ensuring the sealing property of kneading treatment vacuum state, two positions can be combined sampling at a time, the number of sampling operation is reduced, the sampling efficiency is improved, and has high social use value and application prospect.

Description

Technical Field

[0001] This invention relates to the field of ceramicized silicone rubber production technology, and in particular to a vacuum kneader for ceramicized silicone rubber production and its usage method. Background Technology

[0002] Ceramicized silicone rubber is a type of ceramicized polymer, which refers to a composite material prepared by adding silicate fillers such as mica, wollastonite, or clay to a silicone rubber matrix and mixing in some flux. After vulcanization, it has good elasticity and mechanical properties at room temperature. When exposed to open flame or high temperature, it can transform into a self-supporting ceramic body. Compared with other polymers, silicone rubber releases less heat, harmful gases, and smoke during thermal decomposition. The residual silica from its decomposition can serve as a skeleton material for the ceramic body. Therefore, it can be used as a fireproof material.

[0003] In the production process of ceramicized silicone rubber using a vacuum kneader, the mixing temperature of the raw materials is lowered before the kneading process is carried out. However, the kneading situation inside the vacuum kneader cannot be directly observed. Furthermore, the current sampling operation involves directly starting the kneader, which removes the vacuum environment from the material inside, and requires stopping the normal operation of the equipment before sampling can be performed. This eliminates the vacuum environment inside the kneader, affecting the production efficiency and thus impacting the kneading effect of the raw materials.

[0004] Furthermore, during the sampling process, only material from a single location can be obtained, which reduces the reliability of the sample extraction. Increasing the number of samplings can improve the reliability, but it will affect the vacuum environment inside the kneader.

[0005] To address this, the inventors designed and developed a vacuum kneader for the production of ceramicized silicone rubber, which can maintain the vacuum state during the kneading process and prevent changes in the internal vacuum state caused by sampling during the kneading process. Summary of the Invention

[0006] To address the problems mentioned in the background section, this invention provides a vacuum kneader for the production of ceramicized silicone rubber and its usage method.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A vacuum kneader for producing ceramicized silicone rubber includes a kneader housing, an auxiliary sampling mechanism inside the kneader housing, a sealing mechanism for sealing the internal space of the sampling mechanism, a first drive motor for driving the internal components of the sampling mechanism to rotate on the kneader housing, and a second drive motor for driving the sealing mechanism to rotate on the kneader housing.

[0008] Preferably, the material taking mechanism includes a merging tube fitted into the inner wall of the kneader housing, the merging tube having a rotating shaft connected to the output shaft of the first drive motor, the rotating shaft having a merging auger, the middle section of the merging auger having a material blocking plate for separating samples taken from different positions, and the merging tube having a connecting pipe.

[0009] Preferably, the merging pipe is provided with a feed inlet for the sample to enter, and the connecting pipe is provided with a discharge mechanism for discharging the sample.

[0010] Preferably, the sealing mechanism includes a sealing block fitted with the material handling mechanism, the sealing block is provided with a bidirectional threaded rod for driving its translational movement, the bidirectional threaded rod is provided with a main shaft, the bidirectional threaded rod is provided with a washer, and the sealing block is provided with an embedded groove for embedding into the material handling mechanism.

[0011] Preferably, the feeding mechanism includes a sampling tube connected to the connecting pipe, the sampling tube is provided with a feeding tube, and the sampling tube is provided with a collecting tube.

[0012] Preferably, the sealing flap is provided with a feed pipe for pouring raw materials into the kneader housing and an external frame for connecting an external drive device to open the seal between the kneader housing and the sealing flap, and the sealing flap is provided with a vacuum tube.

[0013] Preferably, the sampling tube is provided with an adjusting screw for pushing the collecting tube to move laterally inside the sampling tube, and the collecting tube is provided with a hollow collecting chamber for receiving the sample, and a partition plate is provided inside the hollow collecting chamber.

[0014] A method for using a vacuum kneader for the production of ceramicized silicone rubber includes the following steps: S1: The raw materials used to make ceramicized silicone rubber are added into the inside of the kneader housing through the feed pipe. Then, through the connection of the external vacuum pump and the vacuum pipe, the inside of the kneader housing is made into a vacuum state. The external drive device drives the stirring shaft to rotate. The rotation speed of the two stirring shafts is kept different, so that the kneading plate can fully knead the raw materials. S2: The material inside the kneader housing is kneaded and shaped. The second drive motor is turned on, and the output shaft of the second drive motor drives the main shaft and the bidirectional threaded rod to rotate, so that the sealing block releases the seal on the feed port, allowing the material to enter the interior of the merging tube under the drive of the kneading plate. At the same time, the first drive motor is turned on, and the merging auger concentrates the material on both sides of the merging tube to the middle. The material is separated by the material blocking plate at the two points, and the sampled material falls from the left and right sides of the connecting pipe to the left and right sides of the feeding mechanism respectively. S3: The sampled material falls into the interior of the aggregate bin. Rotate the adjusting screw to move the aggregate bin closer to the discharge pipe, so that the bottom of the aggregate bin is above the discharge pipe, allowing the sampled material in the aggregate bin to fall into the interior of the discharge pipe. Then, the sample can be taken out.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up the material taking mechanism, sealing mechanism and feeding mechanism, and by utilizing the cooperation between the material taking mechanism, sealing mechanism, connecting pipe and feeding mechanism, the material being kneaded inside the kneader housing can be discharged through the feeding pipe without causing major damage to the vacuum environment inside the kneader housing, so that the sampling operation will not affect the kneading process of the material.

[0016] 2. By setting up the material handling mechanism, the feed inlets are opened at both ends of the merging pipe. When the material is concentrated in the middle of the merging pipe, the material blocking plate separates the sampled material at the two points. During the sampling process, the material at both ends will not be mixed, avoiding the mixing of the material at both ends during the conveying process and affecting the sampling results. The number of sampling times can be reduced, improving the sampling efficiency and the reliability of sampling.

[0017] In summary, this invention overcomes the shortcomings of the prior art. While ensuring the sealing of the vacuum state during the kneading process, it can combine samples from two locations in a single operation, reducing the number of sampling operations and improving sampling efficiency. It has high social value and application prospects. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the kneader housing in this invention; Figure 4 This is a schematic diagram of the splicing structure of the material handling mechanism and the sealing mechanism in this invention; Figure 5 This is a schematic diagram of the splicing structure of the material picking mechanism and the material unloading mechanism in this invention; Figure 6 This is a schematic diagram of the sealing mechanism in this invention; Figure 7 This is a schematic diagram of the combined auger structure in this invention; Figure 8 This is a right view of the overall structure of the present invention; Figure 9 For this Figure 8 Enlarged view of the local structure at point A; Figure 10 This is a cross-sectional view of the internal structure of the hollow silo and connecting pipe in the aggregate of the present invention.

[0020] In the diagram: 1. Kneader housing; 2. Sealing flip cover; 21. Feed pipe; 22. External frame; 23. Vacuum pipe; 3. Stirring shaft; 31. Kneading disc; 4. First drive motor; 5. Second drive motor; 6. Material handling mechanism; 601. Merging pipe; 602. Rotating shaft; 603. Merging auger; 6031. Material blocking plate; 604. Feed inlet; 7. Sealing mechanism; 701. Main shaft; 702. Bidirectional threaded rod; 703. Sealing block; 704. Washer; 705. Embedded groove; 8. Connecting pipe; 9. Discharge mechanism; 901. Sampling pipe; 902. Discharge pipe; 903. Collecting pipe; 904. Collecting hollow bin; 9041. Separator plate; 905. Adjusting screw. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1 Reference Figure 1-10 A vacuum kneader for producing ceramicized silicone rubber includes a kneader housing 1, a material taking mechanism 6 for auxiliary sampling inside the kneader housing 1, a sealing mechanism 7 for sealing the internal space of the material taking mechanism 6, a first drive motor 4 for driving the internal components of the material taking mechanism 6 to rotate on the kneader housing 1, and a second drive motor 5 for driving the sealing mechanism 7 to rotate on the kneader housing 1.

[0023] Specifically, the material handling mechanism 6 includes a merging tube 601 fitted inside the inner wall of the kneader housing 1. The merging tube 601 contains a rotating shaft 602 connected to the output shaft of the first drive motor 4. The rotating shaft 602 is equipped with a merging auger 603. The middle section of the merging auger 603 is equipped with a baffle plate 6031 for separating samples taken from different positions. The merging tube 601 is equipped with a connecting pipe 8. The output shaft of the first drive motor 4 drives the rotating shaft 602 to rotate, so that the merging auger 603 can concentrate the sampled material falling from the feed inlets 604 on both sides of the merging tube 601 to the middle of the merging tube 601, and allow the sampled material to fall into the sampling tube 901 through the connecting pipe 8. This facilitates the sampling operation of materials at different positions inside the kneader housing 1 and improves the sampling accuracy.

[0024] Specifically, the merging pipe 601 is provided with a feed inlet 604 for the sample to enter, and the connecting pipe 8 is provided with a discharge mechanism 9 for discharging the sample. The sampled material will enter the interior of the merging pipe 601 through the feed inlet 604 as the kneading plate 31 rotates, and then move towards the middle of the merging pipe 601 by the merging auger 603. The material entering from the left side of the merging pipe 601 falls down along the left side of the connecting pipe 8, and the material entering from the right side of the merging pipe 601 falls down along the right side of the connecting pipe 8 to avoid mixing of the sampled materials at the two points. The connecting pipe 8 falls into the interior of the discharge mechanism 9. The interior of the connecting pipe 8 is provided with a partition to separate the sampled materials at the two points, dividing the connecting pipe 8 into left and right parts, so that the material falls into the corresponding material collection hopper 904.

[0025] Specifically, the sealing mechanism 7 includes a sealing block 703 fitted with the material taking mechanism 6. The sealing block 703 is provided with a bidirectional threaded rod 702 for driving its translational movement. The bidirectional threaded rod 702 is provided with a main shaft 701 and a washer 704. The sealing block 703 is provided with an embedded groove 705 for embedding into the material taking mechanism 6. The sealing mechanism 7 is configured to adjust the sealing state inside the merging tube 601 according to the usage state of the material taking mechanism 6. By opening the sealing block 703, the sampled material can fall from the feed inlet 604 into the inside of the merging tube 601. After sampling is completed, the sealing block 703 can be resealed to close the feed inlet 604, so that slight changes in the vacuum state inside the kneader housing 1 will not affect the material kneaded inside the kneader housing 1.

[0026] Specifically, the feeding mechanism 9 includes a sampling tube 901 connected to the connecting pipe 8, a feeding pipe 902 on the sampling tube 901, and a collecting pipe 903 inside the sampling tube 901. The sampling tube 901 and the collecting pipe 903 are sealed by a sealing ring. When the collecting pipe 903 moves laterally, the empty chamber 904 moves above the feeding pipe 902, and the collecting pipe 903 seals the connection between the sampling tube 901 and the connecting pipe 8, thus avoiding a significant impact on the vacuum state inside the kneader housing 1.

[0027] Specifically, the sealing flip cover 2 is equipped with a feed pipe 21 for pouring raw materials into the kneader housing 1, and an external frame 22 for connecting to an external drive device to open the seal between the kneader housing 1 and the sealing flip cover 2. The sealing flip cover 2 is equipped with a vacuum pipe 23, and the feed pipe 21 is equipped with a cover for sealing. The external frame 22 can be connected to an external drive device to open the seal between the sealing flip cover 2 and the kneader housing 1, allowing the sealing flip cover 2 to rotate around the hinge center point connecting it to the kneader housing 1. The vacuum pipe 23 is responsible for connecting to an external vacuum pump, allowing the vacuum pump to perform vacuuming treatment on the inside of the kneader housing 1 through the vacuum pipe 23.

[0028] Specifically, the sampling tube 901 is equipped with an adjusting screw 905 for pushing the collecting tube 903 to move laterally within the sampling tube 901. The collecting tube 903 is equipped with a hollow collecting chamber 904 for collecting the sample. The hollow collecting chamber 904 is equipped with a partition plate 9041, which can cooperate. As the adjusting screw 905 rotates, it can push the collecting tube 903 to move laterally within the sampling tube 901, so that the bottom opening of the hollow collecting chamber 904 moves above the discharge pipe 902. Relying on gravity, the sampled material loaded inside the hollow collecting chamber 904 enters the interior of the discharge pipe 902. The connection between the adjusting screw 905 and the collecting tube 903 is a bearing connection, and the rotation of the adjusting screw 905 will not cause the collecting tube 903 to rotate together.

[0029] Working Principle: In this invention, the raw material to be kneaded is first introduced into the kneader housing 1 through the feed pipe 21, and the connection between the kneader housing 1 and the sealing flap 2 is sealed. Then, the vacuum pipe 23 is connected to an external vacuum pump to adjust the inside of the kneader housing 1 to a vacuum state. While the raw material is being kneaded inside the kneader housing 1, the first drive motor 4 and the second drive motor 5 can be turned on according to the kneading time, so that the sealing mechanism 7 opens to seal the material taking mechanism 6, allowing the kneading blades 31 to stir the material and enter the merging tube 601 through the feed port 604. Then, the first drive motor 4 drives the merging auger 603 to rotate, so that the sampled material falling from both sides of the merging tube 601 is concentrated in the merging tube. In the middle of pipe 601, the material on both sides of the merging pipe 601 falls into the interior of the aggregate hollow chamber 904 through the holes in the same direction of the connecting pipe 8. The material on the left and right sides is separated by the partition plate 9041. Then, by rotating the adjusting screw 905, the collecting pipe 903 is moved laterally inside the sampling pipe 901 until the bottom opening of the aggregate hollow chamber 904 on the right side of the partition plate 9041 is above the discharge pipe 902. Then the cover at the bottom of the discharge pipe 902 can be opened to observe the sample taken at the right point of the merging pipe 601. Then, the collecting pipe 903 is pushed so that the bottom of the left side of the aggregate hollow chamber 904 is above the discharge pipe 902, allowing the sampled material from the left point of the merging pipe 601 to fall into the discharge pipe 902 and be observed.

[0030] Example 2 A method for using a vacuum kneader for the production of ceramicized silicone rubber includes the following steps: S1: The raw material for making ceramicized silicone rubber is added into the inside of the kneader housing 1 through the feed pipe 21. Then, through the connection of the external vacuum pump and the vacuum pipe 23, the inside of the kneader housing 1 is made into a vacuum state. The external drive device drives the stirring shaft 3 to rotate. The rotation speed of the two stirring shafts 3 is kept different, so that the kneading plate 31 can fully knead the raw material. S2: The material inside the kneader housing 1 is kneaded and shaped. The second drive motor 5 is turned on, and the output shaft of the second drive motor 5 drives the main shaft 701 and the bidirectional threaded rod 702 to rotate, so that the sealing block 703 releases the seal on the feed port 604, allowing the material to enter the interior of the merging tube 601 under the drive of the kneading plate 31. At the same time, the first drive motor 4 is turned on, so that the merging auger 603 concentrates the material on both sides of the merging tube 601 to the middle part, and drops it into the interior of the feeding mechanism 9 through the connecting pipe 8. S3: The sampled material falls into the interior of the aggregate empty hopper 904. Rotate the adjusting screw 905 to push the aggregate empty hopper 904 to the side closer to the discharge pipe 902, so that the bottom of the aggregate empty hopper 904 is above the discharge pipe 902, allowing the sampled material in the aggregate empty hopper 904 to fall into the interior of the discharge pipe 902, and then the sample can be taken out.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" 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, 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 invention according to the specific circumstances.

[0033] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A vacuum kneader for producing ceramicized silicone rubber, comprising a kneader housing (1), characterized in that: The kneader housing (1) is provided with a material taking mechanism (6) for auxiliary sampling. The material taking mechanism (6) is provided with a sealing mechanism (7) for sealing the internal space of the material taking mechanism (6). The kneader housing (1) is provided with a first drive motor (4) for driving the internal components of the material taking mechanism (6) to rotate. The kneader housing (1) is provided with a second drive motor (5) for driving the sealing mechanism (7) to rotate. The material taking mechanism (6) includes a merging tube (601) fitted inside the inner wall of the kneader housing (1). The merging tube (601) is provided with a rotating shaft (602) connected to the output shaft of the first drive motor (4). The rotating shaft (602) is provided with a merging auger (603). The middle section of the merging auger (603) is provided with a baffle plate (6031) for separating samples taken from different positions. The merging tube (601) is provided with a connecting tube (8). The merging pipe (601) is provided with a feed inlet (604) for the sample to enter, and the connecting pipe (8) is provided with a discharge mechanism (9) for discharging the sample. The sealing mechanism (7) includes a sealing block (703) fitted with the material taking mechanism (6). The sealing block (703) is provided with a bidirectional threaded rod (702) for driving its translational movement. The bidirectional threaded rod (702) is provided with a main shaft (701). The bidirectional threaded rod (702) is provided with a washer (704). The sealing block (703) is provided with an embedded groove (705) for embedding into the material taking mechanism (6). The sealing mechanism (7) is set according to the usage state of the material taking mechanism (6). It can adjust the sealing state inside the merging tube (601). By opening the sealing block (703), the sampled material can fall from the feed port (604) into the inside of the merging tube (601). After the sampling is completed, the sealing block (703) can be sealed again to the feed port (604). The slight change in the vacuum state inside the kneader housing (1) will not affect the material kneaded inside the kneader housing (1). The feeding mechanism (9) includes a sampling tube (901) connected to the connecting pipe (8), a feeding pipe (902) is provided on the sampling tube (901), and a collecting pipe (903) is provided inside the sampling tube (901). The sampling tube (901) is provided with an adjusting screw (905) for pushing the collecting tube (903) to move laterally within the sampling tube (901). The collecting tube (903) is provided with a collecting hollow chamber (904) for collecting the sample. The collecting hollow chamber (904) is provided with a partition plate (9041).

2. The vacuum kneader for producing ceramicized silicone rubber according to claim 1, characterized in that: The sealing flip cover (2) is provided with a feed pipe (21) for pouring raw materials into the kneader housing (1) and an external frame (22) for connecting external drive equipment to open the seal between the kneader housing (1) and the sealing flip cover (2). The sealing flip cover (2) is provided with a vacuum pipe (23).

3. A method of using a vacuum kneader for producing ceramicized silicone rubber as described in any one of claims 1-2, characterized in that, Includes the following steps: S1: The raw material for making ceramicized silicone rubber is added into the inside of the kneader housing (1) through the feed pipe (21). Then, through the connection of the external vacuum pump and the vacuum pipe (23), the inside of the kneader housing (1) is made into a vacuum state. The stirring shaft (3) is driven to rotate by the external drive device. The rotation speed of the two stirring shafts (3) is kept different, so that the kneading plate (31) can fully knead the raw material. S2: The material inside the kneader housing (1) is kneaded and shaped. The second drive motor (5) is turned on, and the output shaft of the second drive motor (5) drives the main shaft (701) and the bidirectional threaded rod (702) to rotate, so that the sealing block (703) releases the seal on the feed port (604), and the material enters the interior of the merging tube (601) under the drive of the kneading plate (31). At the same time, the first drive motor (4) is turned on, and the merging auger (603) concentrates the material on both sides of the merging tube (601) into the middle part, and falls into the interior of the feeding mechanism (9) through the connecting pipe (8). S3: The sampled material falls into the interior of the aggregate hollow silo (904). Rotate the adjusting screw (905) to push the aggregate hollow silo (904) to move towards the side closer to the discharge pipe (902), so that the bottom of the aggregate hollow silo (904) is above the discharge pipe (902), allowing the sampled material in the aggregate hollow silo (904) to fall into the interior of the discharge pipe (902), and then the sample can be taken out.

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