High-viscosity precious metal slurry kneading stirrer
By introducing an electric push rod and sealing ring into the kneading mixer, the problem of nozzle clogging was solved, enabling automatic cleaning and sealing of high-viscosity precious metal slurries and improving the cleaning effect of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU SANZE ELECTRONIC MATERIALS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-05
AI Technical Summary
When processing highly viscous precious metal slurries, the nozzles of commercially available kneading mixers are prone to clogging, resulting in poor cleaning effects.
An electric push rod is used to extend and retract the cleaning pipe and nozzle within the mixing cylinder. Combined with the design of the sealing ring, the nozzle is automatically cleaned and sealed to prevent clogging.
It effectively prevents high-viscosity precious metal slurry from clogging the nozzle, improving cleaning efficiency and equipment reliability.
Smart Images

Figure CN224194596U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mixing technology, and in particular relates to a kneading and mixing machine for high-viscosity precious metal slurry. Background Technology
[0002] Kneaders are mainly used to process high-viscosity, elastic-plastic materials, such as silicone rubber, sealant, hot melt adhesive, and precious metal slurry. High-viscosity precious metal slurry is a type of functional material with precious metal as the main component and high-viscosity fluid characteristics. It requires the use of a kneader for mixing. The kneader uses a design of two parallel tangential differential speed Σ-shaped blades to make the materials mix quickly and evenly.
[0003] However, some kneading mixers on the market have cleaning nozzles inside the mixing tank. When mixing high-viscosity precious metal slurries, these slurries may clog the inside of the nozzles, resulting in poor cleaning effect. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model provides a high-viscosity precious metal slurry kneading and mixing machine. An electric push rod can move a cleaning pipe, which in turn moves a nozzle out of a circular hole. Water from an external water pipe is delivered through a connector to the hose, then to the cleaning pipe, and finally sprayed out from the nozzle to clean the inside of the mixing cylinder. After cleaning, the cleaning pipe can be moved back to its original position by the electric push rod, causing the nozzle to retract into the circular hole. A sealing ring ensures a seal between the circular hole and the nozzle, preventing the high-viscosity precious metal slurry from clogging the nozzle.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-viscosity precious metal slurry kneading and mixing machine, comprising a fixed frame, a mixing cylinder rotatably connected inside the fixed frame, two first reduction motors fixedly connected to the surface of the mixing cylinder, the output shafts of the first reduction motors movably penetrating and extending into the interior of the mixing cylinder, stirring blades fixedly connected to the output shafts of the first reduction motors, a second reduction motor fixedly connected to one end of the fixed frame, the output shaft of the second reduction motor movably penetrating the fixed frame and fixedly connected to the surface of the mixing cylinder, a cover movably connected to the top of the fixed frame, two cavities opened above the interior of the mixing cylinder, a cleaning pipe disposed inside the cavity, multiple electric push rods fixedly connected to the surface of the cleaning pipes, the electric push rods fixedly penetrating and extending to the outside of the mixing cylinder, a flexible hose fixedly connected to one end of the cleaning pipe, a connector fixedly connected to the end of the flexible hose away from the cleaning pipe, multiple nozzles disposed on the surface of the cleaning pipe, multiple circular holes opened inside the mixing cylinder, the nozzles located inside the circular holes, and a sealing ring fixedly connected inside the circular holes.
[0006] Furthermore, the stirring blade is Σ-shaped, the stirring blade is made of tungsten carbide substrate, and the surface is coated with diamond.
[0007] Furthermore, the connector is connected to the interior of the cleaning tube via a flexible hose.
[0008] Compared with the prior art, the beneficial effects of this utility model are:
[0009] The electric push rod moves the cleaning tube, which in turn moves the nozzle out of the round hole. Water from the external water pipe is delivered to the hose through the connector, then to the cleaning tube, and finally sprayed out from the nozzle to clean the inside of the mixing tank. After cleaning, the cleaning tube can be moved back to its original position by the electric push rod, which in turn moves the nozzle back into the round hole. The sealing ring seals the round hole and the nozzle, preventing the nozzle from being clogged by high-viscosity precious metal slurry. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0011] Figure 2 Partial cross-sectional view of the mixing cylinder structure of this utility model Figure 1 .
[0012] Figure 3 Partial cross-sectional view of the mixing cylinder structure of this utility model Figure 2 .
[0013] Figure 4 This is a schematic diagram of the stirring blade structure of this utility model.
[0014] In the diagram: 1. Fixed frame; 2. Mixing cylinder; 3. First geared motor; 4. Stirring blade; 5. Second geared motor; 6. Cover; 7. Connector; 8. Hose; 9. Cleaning pipe; 10. Nozzle; 11. Electric push rod; 12. Sealing ring. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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. Example
[0017] See appendix Figure 1-4 As shown, a high-viscosity precious metal slurry kneading and mixing machine includes a fixed frame 1. A mixing cylinder 2 is rotatably connected inside the fixed frame 1. Two first reduction motors 3 are fixedly connected to the surface of the mixing cylinder 2. The output shafts of the first reduction motors 3 movably pass through and extend into the interior of the mixing cylinder 2. A stirring blade 4 is fixedly connected to the output shafts of the first reduction motors 3. A second reduction motor 5 is fixedly connected to one end of the fixed frame 1. The output shaft of the second reduction motor 5 movably passes through the fixed frame 1 and is fixedly connected to the surface of the mixing cylinder 2. A cover 6 is movably connected to the top of the fixed frame 1. Two cavities are opened at the top of the interior of the mixing cylinder 2. A cleaning pipe 9 is arranged inside the cavity. Multiple electric push rods 11 are fixedly connected to the surface of the cleaning pipe 9. The electric push rods 11 are fixedly passed through and extend to the outside of the mixing cylinder 2. A hose 8 is fixedly connected to one end of the cleaning pipe 9. A connector 7 is fixedly connected to the end of the hose 8 away from the cleaning pipe 9. Multiple nozzles 10 are arranged on the surface of the cleaning pipe 9. Multiple round holes are opened inside the mixing cylinder 2. The nozzles 10 are located inside the round holes. A sealing ring 12 is fixedly connected inside the round holes.
[0018] The stirring blade 4 is Σ-shaped and is made of tungsten carbide substrate with a diamond coating on its surface.
[0019] The connector 7 is connected to the inside of the cleaning tube 9 via a flexible hose 8.
[0020] Working principle: The first reduction motor 3 drives the stirring blade 4 to rotate and stir the high-viscosity precious metal slurry inside the mixing cylinder 2. The Σ-shaped stirring blade 4 facilitates the handling of materials with extremely high viscosity. The second reduction motor 5 drives the mixing cylinder 2 to rotate, facilitating material discharge. When cleaning the inside of the mixing cylinder 2, an external water pipe is connected through the connector 7. The electric push rod 11 moves the cleaning pipe 9, which in turn drives the nozzle 10 to extend out of the round hole. Water from the external water pipe is delivered through the connector 7 to the hose 8, then to the cleaning pipe 9, and finally sprayed out from the nozzle 10 to clean the inside of the mixing cylinder 2. After cleaning, the cleaning pipe 9 can be moved back to its original position by the electric push rod 11, thereby causing the nozzle 10 to retract into the round hole. The sealing ring 12 seals the round hole and the nozzle 10, preventing the high-viscosity precious metal slurry from clogging the nozzle 10.
[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.
[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A high-viscosity precious metal slurry kneading and mixing machine, comprising a fixed frame (1), a mixing cylinder (2) rotatably connected inside the fixed frame (1), two first reduction motors (3) fixedly connected to the surface of the mixing cylinder (2), the output shafts of the first reduction motors (3) movably penetrating and extending into the interior of the mixing cylinder (2), and stirring blades (4) fixedly connected to the output shafts of the first reduction motors (3), a second reduction motor (5) fixedly connected to one end of the fixed frame (1), the output shafts of the second reduction motors (5) movably penetrating the fixed frame (1), and the output shafts of the second reduction motors (5) fixedly connected to the surface of the mixing cylinder (2), and a cover (6) movably connected to the top of the fixed frame (1), characterized in that: The mixing cylinder (2) has two cavities at its upper interior. A cleaning pipe (9) is installed inside the cavity. Multiple electric push rods (11) are fixedly connected to the surface of the cleaning pipe (9). The electric push rods (11) are fixedly inserted through and extend to the outside of the mixing cylinder (2). A hose (8) is fixedly connected to one end of the cleaning pipe (9). A connector (7) is fixedly connected to the end of the hose (8) away from the cleaning pipe (9). Multiple nozzles (10) are installed on the surface of the cleaning pipe (9). Multiple round holes are opened inside the mixing cylinder (2). The nozzles (10) are located inside the round holes. A sealing ring (12) is fixedly connected inside the round holes.
2. The high-viscosity precious metal slurry kneading and mixing machine according to claim 1, characterized in that: The stirring blade (4) is Σ-shaped, and the stirring blade (4) is made of tungsten carbide substrate and has a diamond coating on its surface.
3. The high-viscosity precious metal slurry kneading and mixing machine according to claim 1, characterized in that: The connector (7) is connected to the interior of the cleaning pipe (9) via a flexible hose (8).