High viscosity thermal grease kneading machine
By using an improved kneader for high-viscosity thermal grease, which utilizes a motor-driven stirring blade and a vacuum environment, the problem of uneven mixing of high-viscosity thermal grease has been solved, achieving uniform mixing and sealing, and improving thermal conductivity and stability.
Patent Information
- Application Number
- CN202522100926.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-09-29
AI Technical Summary
Existing high-viscosity thermal grease kneaders are not good at dispersing and shearing. The excessive friction between the traditional blades and the material leads to uneven mixing of the high-viscosity thermal grease, affecting its thermal conductivity and stability.
A high-viscosity thermally conductive silicone grease kneader, comprising an operating table, adjustment mechanism, sealing mechanism, transmission assembly, stirring assembly, and vacuum assembly, is used. The mixing is achieved by a motor-driven stirring blade, combined with a sealing and vacuum environment, to ensure uniform mixing and sealing of the materials.
This process achieves uniform mixing of high-viscosity thermal grease, avoids internal agglomeration of materials, improves thermal conductivity and product stability, and ensures the sealing and efficiency of the kneading process.
Smart Images
Figure CN224938016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kneading machine technology, and in particular to a kneading machine for high viscosity thermal conductive silicone grease. Background Technology
[0002] In the fields of electronic equipment, new energy vehicles, and industrial automation, high-viscosity thermal grease is a key thermal management material widely used for heat transfer between heat-generating components and heat dissipation structures in chips, power modules, and battery packs. Its core function is to fill the tiny gaps between heat-generating components and heat dissipation structures, reducing contact thermal resistance, ensuring efficient heat dissipation, and preventing equipment performance degradation and damage due to overheating. The performance of high-viscosity thermal grease depends on its uniform component mixing and stable microstructure. The kneader, as the core equipment for mixing, kneading, and plasticizing high-viscosity materials, directly determines the production efficiency and product quality of thermal grease. From the material characteristics of high-viscosity thermal grease, its raw material system is complex. Furthermore, it has extremely high viscosity and is mainly composed of base silicone oil, high thermal conductivity filler, thixotropic agent, and other functional additives. This type of material has the characteristics of high viscosity, high filler content, and easy agglomeration. High thermal conductivity filler is prone to sedimentation and agglomeration in base silicone oil due to density differences. If the mixing is uneven, it will cause local fluctuations in the thermal conductivity of the thermal grease, affecting the heat transfer effect. At the same time, the high viscosity makes the material flow very poorly during the mixing process. Traditional stirring equipment is difficult to overcome the viscous resistance inside the material and cannot achieve deep integration of filler and base silicone oil. It is easy to have a phenomenon of uniformity on the outside but unevenness on the inside. That is, the surface of the material seems to be uniformly mixed, but there are undispersed filler agglomerates inside, which seriously affects the thermal conductivity and stability of the thermal grease.
[0003] Currently, the kneading machines for thermal grease on the market mainly consist of a kneading module and a transmission module. From the working principle and structural limitations of traditional kneading machines, the existing kneading machines for high-viscosity thermal grease have poor dispersion and shearing effects when dealing with such materials. Traditional kneading machines mostly use Z-shaped blades, which generate shearing force through the rotation of the blades to achieve material mixing. However, when dealing with ultra-high viscosity thermal grease, the friction between the blades and the material is too great, and the material cannot obtain sufficient shearing energy. Therefore, the dispersion and shearing of thermal grease with too high viscosity is not good. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a kneading machine for high-viscosity thermal conductive grease, which aims to improve the problem of the poor dispersion and shearing effect of traditional thermal conductive grease with too high viscosity.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a kneading machine for high viscosity thermal conductive silicone grease, including an operating table, an adjustment mechanism fixedly connected to the top of the operating table, the adjustment mechanism being used to knead the silicone grease, and a sealing mechanism fixedly connected to the right side of the top of the operating table, the sealing mechanism being used to seal the kneading device; The adjustment mechanism includes a baffle, the bottom of which is fixed to the left side of the top surface of the operating table. A motor is fixedly connected to the left side of the middle part of the top surface of the operating table. A transmission assembly is fixedly connected to the output end of the motor. A stirring assembly is fixedly connected to the right end of the transmission assembly. An adjustment assembly is fixedly connected to the right side of the top surface of the operating table. A fixing assembly is rotatably connected to the inner wall of the transmission assembly.
[0006] The above technical solution involves installing a sealing mechanism on the top right side of the operating table using bolts. This sealing mechanism has excellent airtightness and its main function is to effectively seal the entire kneading device. The specific structure of the adjusting mechanism includes a rectangular baffle, the bottom of which is fixed to the left edge of the top surface of the operating table. A high-power motor is installed in the middle-left area of the top surface of the operating table. The motor is securely connected to the operating table using anchor bolts. The output end of the motor is rigidly connected to the transmission assembly via a coupling. The right end of the transmission assembly is reliably connected to the stirring assembly.
[0007] As a further description of the above technical solution: The sealing mechanism includes a support plate, the bottom of which is fixed to the top right end of the operating table near the rear. A connecting plate two is rotatably connected to the top of the support plate. A sealing assembly is fixedly connected to the left end of the connecting plate two. A pressure gauge is fixedly connected to the top left side of the sealing assembly. A vacuum assembly is fixedly connected to the rear right end of the top surface of the operating table.
[0008] The above technical solution is further described as follows: The sealing mechanism mainly consists of a support plate, a connecting plate II, a sealing assembly, and a vacuum assembly. The support plate serves as the basic support component of the entire sealing mechanism. Its bottom is firmly fixed to the top right end of the operating table near the rear by bolts or welding. The top of the support plate is rotatably connected to the connecting plate II via a bearing or rotating shaft connector, allowing the connecting plate II to rotate freely within a certain angle range. The left end of the connecting plate II is connected to the sealing assembly by welding or bolts. A pressure gauge is also installed on the top left side of the sealing assembly to monitor the pressure changes inside the sealing cavity in real time.
[0009] As a further description of the above technical solution: The transmission assembly includes a limiting plate, the bottom of which is fixed to the top surface of the operating table near the center. The output end of the motor is fixedly connected to a transmission shaft, and the right end of the transmission shaft is fixedly connected to a connecting plate.
[0010] Through the above technical solution: the bottom of the limit plate is firmly installed on the top surface of the operating table near the middle position by bolts or other fasteners, which plays a role in stabilizing support. During the operation of the transmission component, the motor serves as the power source, and its output end is rigidly connected to the left end of the transmission shaft through a coupling to ensure the reliability of power transmission.
[0011] As a further description of the above technical solution: The mixing assembly includes a hopper, the left end of which is fixed to the right end of the connecting plate, and the inner wall of the hopper is provided with mixing blades.
[0012] Through the above technical solution: the mixing assembly is mainly composed of a hopper and mixing blades. The hopper, as a container for holding materials, is firmly fixed to the right end of the connecting plate by welding or bolting on its left end, ensuring the stability of the entire mixing assembly during operation.
[0013] As a further description of the above technical solution: The fixing component includes a connecting shaft, the outer wall of which is rotatably connected to the inner wall of the connecting plate, and the front and rear ends of the inner wall of the connecting shaft are threaded with threaded threads.
[0014] Through the above technical solution: the fixing component is mainly composed of a connecting shaft, which forms a precise rotational fit connection with the inner wall of the connecting plate. The inside of the connecting shaft is a hollow structure, and standard threads are provided at both the front and rear ends of its inner wall. Through this thread structure, a reliable threaded connection is achieved with two threaded threads respectively.
[0015] As a further description of the above technical solution: The adjustment assembly includes a converter, the bottom of which is fixed to the top right side of the operating table. A material pouring turntable is provided on the front side of the outer wall of the converter, and a drive shaft is connected to the left side of the inner wall of the converter.
[0016] The above technical solution involves an adjustment component consisting of a converter, a material pouring turntable, and a drive shaft. The converter is securely mounted on the top right side of the operating table using bolts or other fixing methods to ensure the stability of the overall structure. A rotatable material pouring turntable is installed on the front side of the outer wall of the converter, which is used for pouring and transferring materials.
[0017] As a further description of the above technical solution: The sealing assembly includes a sealing plate, the right end of which is fixed to the left end of the connecting plate 2, and locking plates are fixedly connected to the four corners of the outer wall of the sealing plate.
[0018] Through the above technical solution: the sealing assembly is mainly composed of a sealing plate and multiple locking plates. The sealing plate, as the main sealing component, is firmly fixed to the left end face of the connecting plate two by means of welding or bolt connection on its right side. In order to enhance the sealing effect and installation stability, locking plates are provided on the outer wall of the sealing plate, specifically at its four right-angle corners.
[0019] As a further description of the above technical solution: The vacuum assembly includes a vacuum machine, the bottom of which is fixed to the top right side of the operating table. A transmission pipe is fixedly connected to the top of the vacuum machine, and a connecting pipe is fixedly connected to the top right side of the sealing plate. The other end of the transmission pipe is fixed to the outer wall of the connecting pipe.
[0020] The above technical solution involves a vacuum assembly consisting of a vacuum machine, a transmission pipe, and a connecting pipe. The vacuum machine, as the core component, is securely mounted on the top right side of the operating table using bolts to ensure the stability of the equipment during operation.
[0021] This utility model has the following beneficial effects: 1. In this utility model, the motor fixed on the top left side of the operating table can drive the stirring blades set on the inner wall of the hopper to rotate through the limiting plate, so that the thermal grease can be uniformly mixed and stirred inside. At the same time, the pouring turntable fixed on the top right side of the operating table can be switched by the rotation of the pouring turntable, and then the hopper is flipped and unloaded through the transmission shaft 2. This satisfies the high viscosity kneading of the thermal grease, does not easily damage the microstructure of the thermal grease, and ensures the performance of the product.
[0022] 2. In this utility model, the threaded connection of the inner wall of the connecting shaft can be engaged in the corresponding engagement plate by rotation, and then the threaded connection is rotated to drive the sealing plate to seal the hopper. Then the vacuum machine can create a vacuum environment inside the hopper through the transmission pipe to ensure the sealing performance when kneading the thermal grease. Attached Figure Description
[0023] Figure 1 This is a front perspective view of the kneading machine for the high-viscosity thermal grease proposed in this utility model; Figure 2 This is a structural diagram of the vacuum machine for the kneading machine for high-viscosity thermal conductive silicone grease proposed in this utility model; Figure 3 This is a structural diagram of the motor of the kneader for the high-viscosity thermal conductive silicone grease proposed in this utility model; Figure 4 This is a diagram illustrating the sealing plate structure of the kneading machine for high-viscosity thermally conductive silicone grease proposed in this utility model. Figure 5 This is a schematic diagram of the hopper structure of the kneader for the high-viscosity thermal conductive silicone grease proposed in this utility model.
[0024] Explanation of reference numerals in the attached figures: 1. Operating platform; 2. Adjustment mechanism; 201. Baffle; 202. Motor; 203. Transmission assembly; 2031. Limit plate; 2032. Drive shaft one; 2033. Connecting plate one; 204. Mixing assembly; 2041. Hopper; 2042. Mixing blade; 205. Fixing assembly; 2051. Connecting shaft; 2052. Threaded thread; 206. Adjustment assembly; 2061. Discharge turntable; 2062. Converter; 2063. Drive shaft two; 3. Sealing mechanism; 301. Support plate; 302. Connecting plate two; 303. Sealing assembly; 3031. Sealing plate; 3032. Clamping plate; 304. Vacuum assembly; 3041. Vacuum machine; 3042. Transmission pipe; 3043. Connecting pipe; 305. Pressure gauge. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see the appendix Figure 3 - Appendix Figure 5 An embodiment of this utility model provides a high viscosity thermal conductive silicone grease kneading machine, including an operating table 1, an adjustment mechanism 2 fixedly connected to the top of the operating table 1, the adjustment mechanism 2 being used to knead the silicone grease, and a sealing mechanism 3 fixedly connected to the top right side of the operating table 1, the sealing mechanism 3 being used to seal the kneading device. The adjustment mechanism 2 includes a baffle 201. The bottom of the baffle 201 is fixed to the left side of the top surface of the operating table 1. A motor 202 is fixedly connected to the left side of the middle part of the top surface of the operating table 1. A transmission assembly 203 is fixedly connected to the output end of the motor 202. A stirring assembly 204 is fixedly connected to the right end of the transmission assembly 203. An adjustment assembly 206 is fixedly connected to the right side of the top surface of the operating table 1. A fixing assembly 205 is rotatably connected to the inner wall of the transmission assembly 203. Specifically, a sealing mechanism 3 is installed on the top right side of the operating table 1 using bolts. This sealing mechanism 3 has excellent airtightness and its main function is to effectively seal the entire kneading device. The specific structure of the adjusting mechanism 2 includes a rectangular baffle 201, the bottom of which is fixed to the left edge of the top surface of the operating table 1. A high-power motor 202 is installed in the middle-left area of the top surface of the operating table 1. The motor 202 is securely connected to the operating table 1 using anchor bolts. The output end of the motor 202 is rigidly connected to the transmission component 203 via a coupling. The right end of the transmission component 203 is reliably connected to the stirring component 204. An adjusting component 206 is installed on the top right side of the operating table 1. The inner wall of the transmission component 203 is flexibly rotated with the fixed component 205 using bearing support to ensure the smoothness of the transmission process.
[0027] Please see the appendix Figure 1 - Appendix Figure 3 The sealing mechanism 3 includes a support plate 301. The bottom of the support plate 301 is fixed to the top right end of the operating table 1 near the rear side. The top of the support plate 301 is rotatably connected to a connecting plate 302. The left end of the connecting plate 302 is fixedly connected to a sealing assembly 303. The top left side of the sealing assembly 303 is fixedly connected to a pressure gauge 305. The rear right end of the top surface of the operating table 1 is fixedly connected to a vacuum assembly 304. Specifically, the sealing mechanism 3 mainly consists of a support plate 301, a connecting plate 302, a sealing assembly 303, and a vacuum assembly 304. The support plate 301 serves as the basic support component of the entire sealing mechanism 3. Its bottom is firmly fixed to the top right end of the operating table 1 near the rear by bolts or welding. The top of the support plate 301 is rotatably connected to the connecting plate 302 by bearings or rotating shafts, allowing the connecting plate 302 to rotate freely within a certain angle range. The left end of the connecting plate 302 is connected to the sealing assembly 303 by welding or bolts. A pressure gauge 305 is also installed on the top left side of the sealing assembly 303 to monitor the pressure changes in the sealing cavity in real time. In addition, a vacuum assembly 304 is fixedly installed on the rear right end of the top surface of the operating table 1. This assembly is connected to the sealing assembly 303 through pipelines and is used to perform vacuuming operations on the sealing cavity when needed.
[0028] Please see the appendix Figure 1 - Appendix Figure 3The transmission assembly 203 includes a limiting plate 2031, the bottom of which is fixed to the top surface of the operating table 1 near the center. The output end of the motor 202 is fixedly connected to a transmission shaft 2032, and the right end of the transmission shaft 2032 is fixedly connected to a connecting plate 2033. The stirring assembly 204 includes a hopper 2041, the left end of which is fixed to the right end of the connecting plate 2033. The inner wall of the hopper 2041 is provided with stirring blades 2042. The fixing assembly 2... 05 includes a connecting shaft 2051, the outer wall of which is rotatably connected to the inner wall of the connecting plate 1 2033. The front and rear ends of the inner wall of the connecting shaft 2051 are threaded with threaded buckles 2052. The adjusting component 206 includes a converter 2062, the bottom of which is fixed to the top right side of the operating table 1. A material pouring turntable 2061 is provided on the front side of the outer wall of the converter 2062. A transmission shaft 2063 is connected to the left side of the inner wall of the converter 2062. Specifically, the transmission assembly 203 mainly consists of a limiting plate 2031, a transmission shaft 2032, and a connecting plate 2033. The bottom of the limiting plate 2031 is firmly fixed to the top surface of the operating platform 1 near the center with bolts, providing stable support. The output end of the motor 202 is rigidly connected to the transmission shaft 2032 via a coupling. The right end of the transmission shaft 2032 is fixedly connected to the connecting plate 2033 to ensure reliable power transmission. The mixing assembly 204 includes a hopper 2041 and a mixing blade 2042. The left end of the hopper 2041 is fixed to the right end of the connecting plate 2033 with high-strength bolts. The inner wall of the device has multiple sets of spirally arranged stirring blades 2042, which are made of wear-resistant stainless steel. The fixing component 205 consists of a connecting shaft 2051 and a threaded buckle 2052. The outer wall of the connecting shaft 2051 is installed on the inner wall of the connecting plate 1 2033, forming a reliable threaded connection with the threaded buckle 2052. The adjusting component 206 includes a material pouring turntable 2061, a converter 2062 and a transmission shaft 2063. The bottom of the converter 2062 is fixed to the top right side of the operating table 1 by anchor bolts. The front side of its outer wall is equipped with a manually rotatable material pouring turntable 2061.
[0029] Please see the appendix Figure 1 - Appendix Figure 3 The sealing assembly 303 includes a sealing plate 3031, the right end of which is fixed to the left end of the connecting plate 302. The four corners of the outer wall of the sealing plate 3031 are fixedly connected to the locking plates 3032. The vacuum assembly 304 includes a vacuum machine 3041, the bottom of which is fixed to the top right side of the operating table 1. The top of the vacuum machine 3041 is fixedly connected to the transmission pipe 3042. The top right side of the sealing plate 3031 is fixedly connected to the connecting pipe 3043. The other end of the transmission pipe 3042 is fixed to the outer wall of the connecting pipe 3043. Specifically, the sealing assembly 303 is mainly composed of a sealing plate 3031. The right end of the sealing plate 3031 is firmly fixed to the left end face of the connecting plate 302 by welding or bolting. Special locking plates 3032 are provided at the four corners of the outer wall of the sealing plate 3031, which can effectively enhance the stability of the overall structure. The core component of the vacuum assembly 304 is the vacuum machine 3041. The top of the vacuum machine 3041 is provided with a transmission pipe 3042, which is made of corrosion-resistant metal material. One end of the transmission pipe 3042 is sealed to the air outlet of the vacuum machine 3041. A connecting pipe 3043 is also provided on the top right side of the sealing plate 3031. The connecting pipe 3043 and the sealing plate 3031 are integrally formed with the same material to ensure the airtightness of the connection. The other end of the transmission pipe 3042 is tightly fitted onto the outer wall of the connecting pipe 3043 by flange connection or clamp fixation, forming a complete vacuum passage system.
[0030] Working principle: When the motor 202 fixed on the top left of the operating table 1 is driven, it can drive the stirring blade 2042 set on the inner wall of the hopper 2041 to rotate through the limiting plate 2031, so that the thermal grease can be uniformly mixed and stirred inside, thereby increasing its viscosity. At the same time, the pouring turntable 2061 fixed on the top right of the operating table 1 can be rotated to change the material, and then the hopper 2041 is flipped and unloaded through the transmission shaft 2063, which satisfies the high viscosity kneading of the thermal grease. To ensure a tight seal during the kneading of thermal grease, the threaded buckle 2052, which is threaded to the inner wall of the connecting shaft 2051, can be rotated and engaged in the corresponding engagement plate 3032. Then, by rotating the threaded buckle 2052, it drives the sealing plate 3031 to seal the hopper 2041. Subsequently, the vacuum machine 3041 can create a vacuum environment inside the hopper 2041 through the transmission pipe 3042, ensuring the normal kneading process.
[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 kneader for high viscosity heat conductive silicone grease comprising an operating table (1), characterized in that: An adjustment mechanism (2) is fixedly connected to the top of the operating table (1). The adjustment mechanism (2) is used to knead the silicone grease. A sealing mechanism (3) is fixedly connected to the right side of the top of the operating table (1). The sealing mechanism (3) is used to seal the kneading device. The adjustment mechanism (2) includes a baffle (201), the bottom of which is fixed to the left side of the top surface of the operating table (1). A motor (202) is fixedly connected to the left side of the middle part of the top surface of the operating table (1). A transmission assembly (203) is fixedly connected to the output end of the motor (202). A stirring assembly (204) is fixedly connected to the right end of the transmission assembly (203). An adjustment assembly (206) is fixedly connected to the right side of the top surface of the operating table (1). A fixing assembly (205) is rotatably connected to the inner wall of the transmission assembly (203).
2. The kneader for high-viscosity heat-conductive silicone grease according to claim 1, characterized by: The sealing mechanism (3) includes a support plate (301), the bottom of which is fixed to the top right end of the operating table (1) near the rear side. The top of the support plate (301) is rotatably connected to a connecting plate two (302), the left end of which is fixedly connected to a sealing assembly (303), the top left side of which is fixedly connected to a pressure gauge (305), and the rear right end of the top surface of the operating table (1) is fixedly connected to a vacuum assembly (304).
3. The kneader for high-viscosity heat-conductive silicone grease according to claim 1, characterized by: The transmission assembly (203) includes a limiting plate (2031), the bottom of which is fixed to the top surface of the operating table (1) near the center. The output end of the motor (202) is fixedly connected to a transmission shaft (2032), and the right end of the transmission shaft (2032) is fixedly connected to a connecting plate (2033).
4. The kneader for high-viscosity heat-conductive silicone grease according to claim 3, characterized by: The stirring assembly (204) includes a hopper (2041), the left end of which is fixed to the right end of the connecting plate (2033), and the inner wall of the hopper (2041) is provided with stirring blades (2042).
5. The kneader for high viscosity heat-conductive silicone grease according to claim 3, characterized by: The fixing component (205) includes a connecting shaft (2051), the outer wall of which is rotatably connected to the inner wall of the connecting plate (2033), and the front and rear ends of the inner wall of the connecting shaft (2051) are threaded with threaded buckles (2052).
6. The kneader for high-viscosity heat-conductive silicone grease according to claim 1, characterized by: The adjustment component (206) includes a converter (2062), the bottom of which is fixed to the top right side of the operating table (1). A material pouring turntable (2061) is provided on the front side of the outer wall of the converter (2062), and a transmission shaft (2063) is connected to the left side of the inner wall of the converter (2062).
7. The kneader for high viscosity heat-conductive silicone grease according to claim 2, characterized by: The sealing assembly (303) includes a sealing plate (3031), the right end of which is fixed to the left end of the connecting plate (302), and a locking plate (3032) is fixedly connected to each of the four corners of the outer wall of the sealing plate (3031).
8. The kneader for high-viscosity heat-conductive silicone grease according to claim 7, characterized by: The vacuum assembly (304) includes a vacuum machine (3041), the bottom of which is fixed to the top right side of the operating table (1), a transmission pipe (3042) is fixedly connected to the top of the vacuum machine (3041), a connecting pipe (3043) is fixedly connected to the top right side of the sealing plate (3031), and the other end of the transmission pipe (3042) is fixed to the outer wall of the connecting pipe (3043).