An electromagnetic compatibility material mixing device

Abstract

This utility model discloses an electromagnetic compatibility material mixing device, relating to the field of material processing equipment technology. The device includes a mixing cylinder with a cover. The inner bottom wall of the mixing cylinder is conical. A mixing assembly is installed inside the mixing cylinder, including an extension shaft. A motor is installed above the cover, with the output shaft of the motor fixedly connected to the shaft end of the extension shaft. A feed pipe is inserted and fixedly connected to the top surface of the cover and one side of the motor. An inert gas filling pipe is inserted and fixedly connected to the top surface of the cover and the other side of the motor. A stirring paddle is fixedly sleeved on the side wall of the extension shaft. A frame-type paddle and a vertical scraper are provided on one side of the extension shaft, with a bottom scraper fixedly connected to the bottom end of the vertical scraper. This utility model enables efficient and uniform mixing, and during mixing, it can vent the air inside the mixing cylinder and maintain a sealed state to prevent material oxidation and ensure product quality.

Description

Technical Field

[0001] This utility model relates to the field of material processing equipment technology, specifically to an electromagnetic compatibility material mixing device. Background Technology

[0002] Electromagnetic compatibility (EMC) materials are a class of materials used to suppress electromagnetic interference and ensure the normal operation of electronic equipment. They are mainly used in fields such as communications, electronics, and aerospace. The production of EMC materials usually requires mixing processes. For example, conductive silver paste and electromagnetic shielding coatings in EMC materials are usually composed of resin, solvent, additives, and a large amount of metal fillers, such as silver powder, silver-coated copper powder, and nickel powder. The mixing process in the preparation of these metal fillers is crucial and directly affects the conductivity and shielding effectiveness of the final product.

[0003] Currently, commonly used mixing equipment, such as ordinary mixers and planetary mixers, has some shortcomings when used for mixing electromagnetic compatibility materials. First, the bottom of the existing tanks is mostly flat or conical, and because the metal filler has a high density, it is easy to settle and stratify at the bottom of the tank, forming a hard bottom, which may result in uneven mixing. Second, such open or poorly sealed equipment is prone to generating dust during high-speed mixing, polluting the environment, and the metal filler is easily oxidized when exposed to air. In order to address the above problems, the inventors have proposed an electromagnetic compatibility material mixing device to solve the above problems. Utility Model Content

[0004] To address the issues of uneven mixing and potential oxidation of metal fillers during the mixing of current electromagnetic compatibility materials, the purpose of this invention is to provide an electromagnetic compatibility material mixing device.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: an electromagnetic compatibility material mixing device, comprising a mixing cylinder, the mixing cylinder including a cylinder cover, the inner bottom wall of the mixing cylinder being conical, a mixing assembly being disposed inside the mixing cylinder, the mixing assembly including an extension shaft, a motor being disposed above the cylinder cover, the output shaft end of the motor being fixedly connected to the shaft end of the extension shaft, a feed pipe being inserted and fixedly connected to the top surface of the cylinder cover and on one side of the motor, an inert gas filling pipe being inserted and fixedly connected to the top surface of the cylinder cover and on the other side of the motor, a stirring paddle being fixedly sleeved on the side wall of the extension shaft, a frame-type paddle and a vertical scraper being disposed on one side of the extension shaft, a bottom scraper being fixedly connected to the bottom end of the vertical scraper, and a discharge pipe being inserted and fixedly connected to the bottom surface of the mixing cylinder.

[0006] Preferably, the motor has a base on its side wall, and the side wall of the base is fixedly connected to the top surface of the cylinder cover. The motor is mounted on the base. When the motor is started, the extended shaft rotates under the action of the motor output shaft, which in turn causes the stirring paddle to rotate. The first protruding rod causes the frame-type blades to rotate, and the second protruding rod causes the vertical scraper and the bottom scraper to rotate. The rotating stirring paddle and frame-type blades can achieve convection and shear mixing of materials to improve the uniformity of the mixture. When the vertical scraper and the bottom scraper rotate, they can continuously scrape the wall and bottom surface of the mixing cylinder to prevent material adhesion and continuously turn up the settled metal filler, working in conjunction with the stirring paddle and frame-type blades. The process achieves rapid and uniform mixing. The feed pipe has a detachable first cap, and the inert gas filling pipe has a detachable second cap. When raw materials need to be fed into the mixing cylinder through the feed pipe, the first and second caps are removed first, and the external inert gas water supply pipe is connected to the port of the inert gas filling pipe to fill the mixing cylinder with inert gas. As the amount of inert gas in the mixing cylinder increases, the air in the mixing cylinder can be discharged through the feed pipe. Then, the external inert gas water supply pipe is removed from the inert gas filling pipe, and the second cap is replaced. Then, the raw materials can be fed into the mixing cylinder filled with inert gas through the feed pipe to prevent material oxidation and ensure product quality.

[0007] Preferably, a first protruding rod is fixedly connected to the side wall of the frame-type blade, and the end of the first protruding rod away from the frame-type blade is fixedly connected to the side wall of the extension shaft. A second protruding rod is fixedly connected to the side wall of the vertical scraper, and the end of the second protruding rod away from the vertical scraper is fixedly connected to the side wall of the extension shaft. When the extension shaft rotates, the frame-type blade can rotate through the first protruding rod, and the vertical scraper and the bottom scraper can rotate through the second protruding rod. The bottom scraper cooperates with the inner bottom wall of the mixing cylinder, and a reinforcing rod is fixedly connected to the side wall of the bottom scraper. The end of the reinforcing rod away from the bottom scraper is fixedly connected to the side wall of the second protruding rod located at the bottom. Both the vertical scraper and the bottom scraper are made of polytetrafluoroethylene. Made of polytetrafluoroethylene (PTFE), which has an extremely low coefficient of friction and excellent chemical resistance, meets food hygiene standards and will not contaminate materials. Its soft texture allows it to effectively scrape the inner wall without damaging it. A bracket is fixedly connected to the lower part of the outer wall of the mixing cylinder, and a valve body is installed on the side wall of the discharge pipe. The bracket supports the mixing cylinder. After mixing, the valve body is opened to allow the discharge pipe to flow freely, and the mixed material can be discharged through the discharge pipe. When cleaning the inside of the mixing cylinder is required, cleaning solvent can be poured into the inlet pipe, and the mixing assembly can be turned on for brief stirring. The dirty liquid can then be discharged from the discharge pipe. This process can be repeated several times with clean water to complete the cleaning.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model can achieve efficient and uniform mixing. The rotating stirring paddle and frame blades can realize the convection and shear mixing of materials to improve the uniformity of mixing. In addition, the unique conical cylinder design, combined with the wall scraping and bottom scraping design, can effectively solve the problems of metal filler sedimentation and wall adhesion, thereby shortening the mixing time and improving the mixing uniformity.

[0009] 2. This utility model can vent the air in the mixing cylinder during mixing and maintain a sealed state during mixing to prevent material oxidation and ensure product quality. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of the mixing cylinder of this utility model.

[0013] Figure 3 This is a schematic diagram of the mixing cylinder structure of this utility model.

[0014] Figure 4 This is a schematic diagram of the mixing component structure of this utility model.

[0015] In the diagram: 1. Mixing cylinder; 2. Support; 3. Cylinder cover; 4. Feed pipe; 5. First pipe cover; 6. Inert gas filling pipe; 7. Second pipe cover; 8. Mixing assembly; 9. Motor; 10. Base; 11. Extended shaft; 12. Agitator; 13. First protruding rod; 14. Frame-type blade; 15. Second protruding rod; 16. Vertical scraper; 17. Bottom scraper; 18. Reinforcing rod; 19. Discharge pipe; 20. Valve body. Detailed Implementation

[0016] 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, 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.

[0017] Example: Figure 1-4 As shown, this utility model provides an electromagnetic compatibility material mixing device, including a mixing cylinder 1, a cylinder cover 3, and a conical inner bottom wall. A mixing component 8 is provided inside the mixing cylinder 1, and the mixing component 8 includes an extension shaft 11. A motor 9 is provided above the cylinder cover 3, and the output shaft end of the motor 9 is fixedly connected to the shaft end of the extension shaft 11. A feed pipe 4 is inserted and fixedly connected to the top surface of the cylinder cover 3 and one side of the motor 9. An inert gas filling pipe 6 is inserted and fixedly connected to the top surface of the cylinder cover 3 and the other side of the motor 9. A stirring paddle 12 is fixedly sleeved on the side wall of the extension shaft 11. A frame-type paddle 14 and a vertical scraper 16 are provided on one side of the extension shaft 11. A bottom scraper 17 is fixedly connected to the bottom end of the vertical scraper 16. A discharge pipe 19 is inserted and fixedly connected to the bottom surface of the mixing cylinder 1.

[0018] The side wall of the motor 9 is provided with a base 10, and the side wall of the base 10 is fixedly connected to the top surface of the cylinder cover 3.

[0019] By adopting the above technical solution, the motor 9 is installed on the base 10. When the motor 9 is started, the extended shaft 11 rotates under the action of the output shaft of the motor 9, which in turn causes the stirring paddle 12 to rotate. The first protruding rod 13 causes the frame-type blade 14 to rotate, and the second protruding rod 15 causes the vertical scraper 16 and the bottom scraper 17 to rotate. The rotating stirring paddle 12 and the frame-type blade 14 can realize the convection and shear mixing of materials to improve the uniformity of the mixture. When the vertical scraper 16 and the bottom scraper 17 rotate, they can continuously scrape the wall and bottom surface of the mixing cylinder 1 to prevent material adhesion and continuously turn up the precipitated metal filler, which works in conjunction with the stirring paddle 12 and the frame-type blade 14 to achieve rapid and uniform mixing.

[0020] The feed pipe 4 has a detachable first pipe cap 5 at its port, and the inert gas filling pipe 6 has a detachable second pipe cap 7 at its port.

[0021] By adopting the above technical solution, when raw materials need to be fed into the mixing cylinder 1 through the feed pipe 4, the first pipe cover 5 and the second pipe cover 7 are removed first, and the port of the external inert gas water supply pipe is connected to the inert gas filling pipe 6 to fill the mixing cylinder 1 with inert gas. As the amount of inert gas in the mixing cylinder 1 increases, the air in the mixing cylinder 1 can be discharged through the feed pipe 4. Then, the external inert gas water supply pipe is removed from the inert gas filling pipe 6 and the second pipe cover 7 is put on. Then, the raw materials can be fed into the mixing cylinder 1 filled with inert gas through the feed pipe 4, thereby preventing the material from oxidizing and ensuring product quality.

[0022] A first protruding rod 13 is fixedly connected to the side wall of the frame blade 14. The end of the first protruding rod 13 away from the frame blade 14 is fixedly connected to the side wall of the extension shaft 11. A second protruding rod 15 is fixedly connected to the side wall of the vertical scraper 16. The end of the second protruding rod 15 away from the vertical scraper 16 is fixedly connected to the side wall of the extension shaft 11.

[0023] By adopting the above technical solution, when the extended shaft 11 rotates, the frame blade 14 can be rotated through the first protruding rod 13, and the vertical scraper 16 and the bottom scraper 17 can be rotated through the second protruding rod 15.

[0024] The bottom scraper 17 is fitted with the inner bottom wall of the mixing cylinder 1, and a reinforcing rod 18 is fixedly connected to the side wall of the bottom scraper 17. The end of the reinforcing rod 18 away from the bottom scraper 17 is fixedly connected to the side wall of the second protruding rod 15 located at the bottom.

[0025] By adopting the above technical solution, both the vertical scraper 16 and the bottom scraper 17 are made of polytetrafluoroethylene (PTFE). PTFE has an extremely low coefficient of friction and excellent chemical corrosion resistance. It also meets food hygiene standards and will not contaminate the material. In addition, its texture is relatively soft, which can effectively scrape the inner wall without damaging the inner wall of the mixing cylinder 1.

[0026] A bracket 2 is fixedly connected to the lower part of the outer side wall of the mixing cylinder 1, and a valve body 20 is provided on the side wall of the discharge pipe 19.

[0027] By adopting the above technical solution, the bracket 2 is used to support the mixing cylinder 1. After the mixing is completed, the valve body 20 is opened to make the discharge pipe 19 unobstructed. The mixed material can be discharged through the discharge pipe 19. When it is necessary to clean the inside of the mixing cylinder 1, the cleaning solvent can be poured into the feed pipe 4 and the mixing component 8 can be turned on for a short stirring. Then the sewage can be discharged from the discharge pipe 19. The operation can be repeated several times with clean water to complete the cleaning.

[0028] Working principle: When using this utility model, when the raw materials need to be fed into the mixing cylinder 1 through the feed pipe 4, first remove the first pipe cover 5 and the second pipe cover 7, connect the external inert gas water supply pipe to the port of the inert gas filling pipe 6 to fill the mixing cylinder 1 with inert gas. As the amount of inert gas in the mixing cylinder 1 increases, the air in the mixing cylinder 1 can be discharged through the feed pipe 4. Then, remove the external inert gas water supply pipe from the inert gas filling pipe 6 and cover it with the second pipe cover 7. Then, the raw materials can be fed into the mixing cylinder 1 filled with inert gas through the feed pipe 4, thereby preventing the material from oxidizing and ensuring product quality. Then, the motor 9 is started, and the extended shaft 11 rotates under the action of the output shaft of the motor 9, which in turn causes the stirring paddle 12 to rotate. The first protruding rod 13 causes the frame blade 14 to rotate, and the second protruding rod 15 causes the vertical scraper 16 and the bottom scraper 17 to rotate. The rotating stirring paddle 12 and the frame blade 14 can realize the convection and shear mixing of materials to improve the uniformity of the mixture. When the vertical scraper 16 and the bottom scraper 17 rotate, they can continuously scrape the wall and bottom surface of the mixing cylinder 1 to prevent material adhesion and continuously turn up the precipitated metal filler. They work together with the stirring paddle 12 and the frame blade 14 to achieve rapid and uniform mixing. After the mixing process is completed, the valve body 20 is opened to allow the discharge pipe 19 to flow smoothly, and the mixed material can be discharged through the discharge pipe 19.

[0029] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An electromagnetic compatibility material mixing device comprising a mixing drum (1), characterized in that: The mixing cylinder (1) includes a cylinder cover (3), the inner bottom wall of the mixing cylinder (1) is conical, a mixing assembly (8) is provided inside the mixing cylinder (1), the mixing assembly (8) includes an extension shaft (11), a motor (9) is provided above the cylinder cover (3), the output shaft end of the motor (9) is fixedly connected to the shaft end of the extension shaft (11), and a feed pipe (4) is inserted and fixedly connected to the top surface of the cylinder cover (3) and on one side of the motor (9). An inert gas filling pipe (6) is inserted and fixedly connected to the top surface of the cylinder cover (3) and to the other side of the motor (9). A stirring paddle (12) is fixedly sleeved on the side wall of the extended shaft (11). A frame-type paddle (14) and a vertical scraper (16) are provided on one side of the extended shaft (11). A bottom scraper (17) is fixedly connected to the bottom end of the vertical scraper (16). A discharge pipe (19) is inserted and fixedly connected to the bottom surface of the mixing cylinder (1).

2. The electromagnetic compatibility material mixing device of claim 1, wherein, The motor (9) has a base (10) on its side wall, and the side wall of the base (10) is fixedly connected to the top surface of the cylinder cover (3).

3. The electromagnetic compatibility material mixing apparatus of claim 1, wherein The feed pipe (4) is detachably provided with a first pipe cap (5), and the inert gas filling pipe (6) is detachably provided with a second pipe cap (7).

4. The electromagnetic compatibility material compounding device of claim 1, wherein, The side wall of the frame blade (14) is fixedly connected to a first protrusion (13), and the end of the first protrusion (13) away from the frame blade (14) is fixedly connected to the side wall of the extension shaft (11).

5. The electromagnetic compatibility material mixing device as described in claim 1, characterized in that, The side wall of the vertical scraper (16) is fixedly connected to a second protruding rod (15), and the end of the second protruding rod (15) away from the vertical scraper (16) is fixedly connected to the side wall of the extension shaft (11).

6. An electromagnetic compatibility material mixing apparatus as defined in claim 5, wherein, The bottom scraper (17) is fitted with the inner bottom wall of the mixing cylinder (1), and a reinforcing rod (18) is fixedly connected to the side wall of the bottom scraper (17). The end of the reinforcing rod (18) away from the bottom scraper (17) is fixedly connected to the side wall of the second protruding rod (15) located at the bottom.

7. The electromagnetic compatibility material compounding device of claim 1, wherein A bracket (2) is fixedly connected to the lower part of the outer side wall of the mixing cylinder (1), and a valve body (20) is provided on the side wall of the discharge pipe (19).

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