Anti-adhesion noble metal material mixer paddle structure

Abstract

The utility model discloses a kind of noble metal material mixing machine paddle structures of anti-adhesion, the utility model relates to noble metal mixing machine technical field.The noble metal material mixing machine paddle structure of anti-adhesion includes support frame, the top of the support frame is provided with mixing mechanism, for mixing material, the mixing mechanism includes: stirring subassembly, including fixedly installed in the inside of support frame's material cylinder, the bottom end fixed mounting of the material cylinder has unloading valve, the top of the material cylinder is fixedly installed with top cover, the cleaning frame in scraping subassembly is closely contacted with the inner wall of material cylinder, cleaning frame is rotated synchronously by the clamping action of pressure bearing and transmission shaft protruding structure, the helical structure below it in rotating process, can continuously produce scraping action to the inner wall of material cylinder, will attached material be forced to peel off;While helical structure rotates can also drive the material near inner wall to form circulating flow, avoid material from stationary or slow flow and adhere to inner wall.

Description

Technical Field

[0001] This utility model relates to the field of precious metal mixing machine technology, specifically to a paddle structure for an anti-adhesion precious metal material mixing machine. Background Technology

[0002] Precious metal material mixers typically use the rotation of paddles to generate pushing, shearing, and tumbling forces on the precious metal materials inside the tank, breaking up the local agglomeration of the materials, such as the "layering" of metal powder caused by static electricity or density differences. This promotes the material to form a circulating flow in the axial and radial directions, ensuring that precious metal materials of different batches and particle sizes are fully contacted, ultimately achieving uniformity of composition.

[0003] The existing utility model patent with publication number CN221832049U discloses a stainless steel paddle mixer, including a support frame, a mixing chamber, and a geared motor. The mixing chamber contains a paddle shaft, and multiple stirring blades are fixedly installed on the outer wall of the paddle shaft. Both ends of the paddle shaft have receiving grooves, and mating blocks are slidably installed within these grooves. This patent allows for quick disassembly and removal of the paddle shaft and multiple stirring blades, effectively improving the ease of cleaning materials adhering to the outer surface of the stirring blades and the inner wall of the mixing chamber.

[0004] In the aforementioned stainless steel paddle mixer, the paddle structure at the connection between the paddle center and the drive shaft is mostly a circular tube structure, where material tends to accumulate. Furthermore, since this area is close to the paddle's rotation center, the centrifugal force during paddle rotation cannot remove the material adhering to this area from the paddle surface. Additionally, there is a certain distance between the paddle and the inner wall of the container during rotation, resulting in a large amount of material adhering to the inner wall of the container during material discharge. This material cannot be discharged under its own gravity, leading to material waste. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a paddle structure for a precious metal material mixer that prevents adhesion, thus solving the problems of centrifugal force failing to remove material from the connection between the paddle and the shaft, and material adhering to the inner wall of the container.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A paddle structure for an anti-adhesion precious metal material mixer includes a support frame, and a mixing mechanism is disposed above the support frame for mixing materials. The mixing mechanism includes: A mixing assembly includes a material cylinder fixedly installed inside a support frame. A discharge valve is fixedly installed at the bottom end of the material cylinder, and a top cover is fixedly installed at the top of the material cylinder. A drive shaft is inserted through the center of the top cover. A connecting frame is fixedly installed on the outside of the drive shaft, and a paddle is fixedly installed on the outside of the connecting frame. A motor is fixedly installed above the top cover. A synchronous pulley is fixedly installed at the bottom end of the motor shaft and the top end of the drive shaft, and a synchronous belt is sleeved on the outside of the synchronous pulley. The scraping component is located inside the barrel and is used to scrape the material from the inner wall of the barrel.

[0007] Preferably, the scraping assembly includes a limiting frame fixedly installed above the top cover, an electric push rod fixedly installed below the limiting frame, a pressure plate fixedly installed at the bottom end of the electric push rod, a pressure bearing fixedly installed at the bottom of the pressure plate, a cleaning frame sleeved on the outside of the drive shaft, and a limiting ring fixedly installed inside the cleaning frame.

[0008] Preferably, the bottom end of the material cylinder has a tapered structure, the drive shaft and the top cover are rotatably connected by bearings, the top of the drive shaft is provided with a disc-shaped protrusion, and the drive shaft is connected to the motor shaft through a synchronous pulley and a synchronous belt.

[0009] Preferably, the connecting frame is fixedly installed at the center and bottom of the drive shaft, and the blade is fixed in a ring shape on the outside of the connecting frame with the center of the drive shaft as the reference.

[0010] Preferably, the electric push rods are symmetrically installed below the limiting frame, the movable end of the electric push rods is slidably connected to the top cover, the pressure plate is located below the top cover, and the center of the pressure plate is provided with an opening structure with a diameter larger than that of the drive shaft.

[0011] Preferably, the cleaning frame is rotatably connected to the drive shaft, and the "X"-shaped structure on the top of the cleaning frame is located above the protruding structure on the outside of the drive shaft. A spiral structure that contacts the inner wall of the material cylinder is provided below the cleaning frame.

[0012] Beneficial effects This invention provides a paddle structure for an anti-adhesion precious metal material mixer. Compared with the prior art, it has the following advantages: (1) The paddle structure of this anti-adhesion precious metal material mixer does not use the traditional cylindrical structure that easily accumulates materials. Instead, the connecting frame is fixedly installed at the center and bottom of the drive shaft. The inner wall of the outer ring structure of the connecting frame has a protrusion at the center and the upper and lower sides are inclined. This structure not only ensures a stable connection with the drive shaft and paddle, but also greatly reduces the surface area on which materials can adhere. At the same time, the inclined design can guide the material to flow outward when the connecting frame rotates, avoiding the material from staying at the connection. On the other hand, the surface of the paddle is coated with a ceramic coating. The ceramic coating has the characteristics of being smooth and not easily adhering to precious metal materials, which reduces the basis for material adhesion to the paddle surface from the material level. In addition, the paddles at the center and bottom of the drive shaft face opposite directions. When rotating, they can form a bidirectional material thrust, which enhances the fluidity of the material at the connection and further reduces the possibility of material accumulation. Even if a small amount of material approaches the center of rotation, it will be carried away by the bidirectional thrust and the inclined guide, rather than staying due to insufficient centrifugal force.

[0013] (2) The paddle structure of the anti-adhesion precious metal material mixer has a cleaning rack in the scraping component that is in close contact with the inner wall of the barrel. The cleaning rack rotates synchronously through the clamping action of the pressure bearing and the protruding structure of the drive shaft. The spiral structure below it can continuously scrape the inner wall of the barrel during rotation, forcibly peeling off the attached material. At the same time, the rotation of the spiral structure can also drive the material near the inner wall to form a circulating flow, avoiding the material from adhering to the inner wall due to stillness or slow flow. Secondly, during the mixing process, the cleaning rack drives the material on the inner wall to rotate, which can break the local aggregation of the material caused by static electricity or density difference, and prevent the aggregated material from adhering tightly to the inner wall due to increased adhesion, thus reducing the risk of adhesion from the mixing stage. The continuous scraping of the cleaning rack during unloading further ensures that there is no residue on the inner wall, ultimately achieving the effect of zero or very little material adhesion to the inner wall of the container. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the drive shaft mounting structure of this utility model; Figure 3 This is a schematic diagram of the inner edge structure of the connecting frame of this utility model; Figure 4 This is a schematic diagram of the installation structure of the limiting ring of this utility model; In the diagram: 1. Support frame; 2. Mixing mechanism; 21. Stirring assembly; 211. Material cylinder; 212. Discharge valve; 213. Top cover; 214. Drive shaft; 215. Connecting frame; 216. Paddle; 217. Motor; 218. Synchronous pulley; 219. Synchronous belt; 22. Scraping assembly; 221. Limiting frame; 222. Electric actuator; 223. Pressure plate; 224. Pressure bearing; 225. Cleaning frame; 226. Limiting 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, 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.

[0016] Please see Figure 1-4 This utility model provides a technical solution: a paddle structure for an anti-adhesion precious metal material mixer includes a support frame 1, and a mixing mechanism 2 is arranged above the support frame 1 for mixing materials. The mixing mechanism 2 includes: The mixing assembly 21 includes a material cylinder 211 fixedly installed inside the support frame 1. A discharge valve 212 is fixedly installed at the bottom end of the material cylinder 211. A top cover 213 is fixedly installed at the top of the material cylinder 211. A drive shaft 214 is inserted through the center of the top cover 213. A connecting frame 215 is fixedly installed on the outside of the drive shaft 214. A paddle 216 is fixedly installed on the outside of the connecting frame 215. A motor 217 is fixedly installed above the top cover 213. A synchronizing element is fixedly installed at the bottom end of the shaft of the motor 217 and the top end of the drive shaft 214. The outer side of the synchronous pulley 218 is fitted with a synchronous belt 219. The bottom end of the material cylinder 211 is a conical structure. The drive shaft 214 and the top cover 213 are rotatably connected by bearings. The top of the drive shaft 214 is provided with a disc-shaped protrusion. The drive shaft 214 is connected to the shaft of the motor 217 through the synchronous pulley 218 and the synchronous belt 219. The connecting frame 215 is fixedly installed at the center and bottom end of the drive shaft 214. The blade 216 is fixed in a ring shape on the outer side of the connecting frame 215 with the center of the drive shaft 214 as the reference.

[0017] Specifically, the conical structure at the bottom of the material cylinder 211 guides the material out, and the discharge valve 212 closes the bottom of the material cylinder 211 to control the material discharge. A funnel structure is provided above the top cover 213. When the motor 217 rotates, the synchronous pulley 218 at the bottom of its shaft is driven to rotate by the motor 217. The synchronous pulley 218 at the bottom of the motor 217 shaft is connected to the synchronous pulley 218 at the top of the transmission shaft 214 through a synchronous belt 219, so that the motor 217 can drive the transmission shaft 214 to rotate when it starts, thereby driving the connecting frame 215 and the blade 216 on the outside of the transmission shaft 214 to rotate. The blade 216 at the center faces the opposite direction to the blade 216 at the bottom of the drive shaft 214. When rotating, it can easily stir the material to facilitate rapid mixing. The surface of the blade 216 is provided with a ceramic coating to prevent material from adhering to the surface of the blade 216. The connecting frame 215 can reduce the area near the connection between itself and the drive shaft 214 while connecting the blade 216 and the drive shaft 214, thereby reducing the area where material can adhere. At the same time, the inner wall center of the outer annular structure of the connecting frame 215 is provided with a protruding structure, and the upper and lower sides are inclined, which can reduce the obstruction of the connecting frame 215 to the inner material when rotating.

[0018] The scraping assembly 22, disposed inside the material cylinder 211, is used to scrape the material from the inner wall of the material cylinder 211. The scraping assembly 22 includes a limiting frame 221 fixedly installed above the top cover 213, an electric push rod 222 fixedly installed below the limiting frame 221, a pressure plate 223 fixedly installed at the bottom end of the electric push rod 222, a pressure bearing 224 fixedly installed at the bottom of the pressure plate 223, a cleaning frame 225 sleeved on the outside of the drive shaft 214, and a limiting ring 226 fixedly installed inside the cleaning frame 225. The electric push rod 222... Symmetrically installed below the limiting frame 221, the movable end of the electric push rod 222 is slidably connected to the top cover 213, the pressure plate 223 is located below the top cover 213, and the center of the pressure plate 223 is provided with an opening structure with a diameter larger than that of the drive shaft 214. The cleaning frame 225 is rotatably connected to the drive shaft 214, and the top "X" shaped structure of the cleaning frame 225 is located above the outer protrusion structure of the drive shaft 214. The bottom of the cleaning frame 225 is provided with a spiral structure that contacts the inner wall of the material cylinder 211.

[0019] Specifically, during the mixing process, the electric push rod 222 drives the pressure plate 223 to move downward, so that the bottom end of the pressure bearing 224 at the bottom of the pressure plate 223 contacts the center of the top of the cleaning frame 225. As the electric push rod 222 continues to extend, the pressure bearing 224 will clamp the cleaning frame 225 with the protruding structure at the top of the drive shaft 214, thereby driving the cleaning frame 225 to rotate. During the rotation of the cleaning frame 225, the spiral structure below its outer edge can drive the material near the inner wall of the material cylinder 211 to rotate, and can avoid the drive shaft 214 from rotating at high torque for a long time, which would shorten the service life of the drive shaft 214. At the same time, during the material discharge process, the cleaning frame 225 can scrape off the material adhering to the inner wall of the material cylinder 211.

[0020] Specifically, the motor 217 is model Y132M-4, and the electric actuator 222 is model KL-24V-600N-120mm. In addition, all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0021] During operation, precious metal materials are first fed into the material cylinder 211 through the funnel structure above the top cover 213. Then, the motor 217 is started, and the synchronous wheel 218 at the bottom of the motor 217 shaft rotates accordingly. The synchronous belt 219 on the outside drives the synchronous wheel 218 at the top of the drive shaft 214 to rotate, thereby causing the drive shaft 214 to rotate at the center of the top cover 213 through the bearing. When the drive shaft 214 rotates, the connecting frame 215 fixedly installed on its outside drives the outer ring-shaped blades 216 to rotate synchronously. The ceramic coating on the surface of the blades 216 can reduce material adhesion. At the same time, the blades 216 at the center of the drive shaft 214 and the blades 216 at the bottom face opposite directions, which can push and shear the material from different directions, break the material aggregation state, and promote the material to circulate axially and radially in the material cylinder 211 to achieve full mixing.

[0022] During the mixing process, the electric push rods 222, which are symmetrically installed below the limit frame 221, are activated. The movable end of the electric push rod 222 passes through the top cover 213 and drives the pressure plate 223 below to move downward. The diameter of the central opening of the pressure plate 223 is larger than the diameter of the drive shaft 214 to avoid interference with the drive shaft 214, until the pressure bearing 224 at the bottom of the pressure plate 223 contacts the top of the cleaning frame 225. As the electric push rod 222 continues to extend, the pressure bearing 224 and the disc-shaped protrusion on the top of the drive shaft 214 together clamp the cleaning frame 225, so that the cleaning frame 225 rotates synchronously with the drive shaft 214. The spiral structure below the cleaning frame 225 that contacts the inner wall of the material cylinder 211 can drive the material near the inner wall to rotate, assisting in mixing.

[0023] After mixing, the discharge valve 212 at the bottom of the material cylinder 211 is opened, and the conical structure of the material cylinder 211 guides the material downward to be discharged. During the discharge process, the cleaning rack 225 rotates continuously, and its spiral structure scrapes off the material attached to the inner wall of the material cylinder 211 to ensure that the material is fully discharged and reduce waste.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paddle structure for an anti-adhesion precious metal material mixer, comprising a support frame (1), characterized in that: A mixing mechanism (2) is provided above the support frame (1) for mixing materials. The mixing mechanism (2) includes: The mixing assembly (21) includes a material cylinder (211) fixedly installed inside the support frame (1). A discharge valve (212) is fixedly installed at the bottom end of the material cylinder (211). A top cover (213) is fixedly installed at the top of the material cylinder (211). A drive shaft (214) is inserted through the center of the top cover (213). A connecting frame (215) is fixedly installed on the outside of the drive shaft (214). A blade (216) is fixedly installed on the outside of the connecting frame (215). A motor (217) is fixedly installed above the top cover (213). A synchronous pulley (218) is fixedly installed at the bottom end of the shaft of the motor (217) and the top end of the drive shaft (214). A synchronous belt (219) is sleeved on the outside of the synchronous pulley (218). The scraping component (22) is located inside the barrel (211) and is used to scrape the material from the inner wall of the barrel (211).

2. The paddle structure for an anti-adhesion precious metal material mixer according to claim 1, characterized in that: The scraping assembly (22) includes a limiting frame (221) fixedly installed above the top cover (213), an electric push rod (222) fixedly installed below the limiting frame (221), a pressure plate (223) fixedly installed at the bottom end of the electric push rod (222), a pressure bearing (224) fixedly installed at the bottom of the pressure plate (223), a cleaning frame (225) sleeved on the outside of the drive shaft (214), and a limiting ring (226) fixedly installed inside the cleaning frame (225).

3. The paddle structure for an anti-adhesion precious metal material mixer according to claim 1, characterized in that: The bottom end of the material cylinder (211) is a conical structure. The drive shaft (214) and the top cover (213) are connected by bearings. The top of the drive shaft (214) is provided with a disc-shaped protrusion structure. The drive shaft (214) is connected to the shaft of the motor (217) through a synchronous pulley (218) and a synchronous belt (219).

4. The paddle structure for an anti-adhesion precious metal material mixer according to claim 1, characterized in that: The connecting frame (215) is fixedly installed at the center and bottom of the drive shaft (214), and the blade (216) is fixed in a ring shape on the outside of the connecting frame (215) with the center of the drive shaft (214) as the reference.

5. The paddle structure for an anti-adhesion precious metal material mixer according to claim 2, characterized in that: The electric push rod (222) is symmetrically installed below the limiting frame (221). The movable end of the electric push rod (222) is slidably connected to the top cover (213). The pressure plate (223) is located below the top cover (213), and the center of the pressure plate (223) is provided with an opening structure with a diameter larger than that of the drive shaft (214).

6. The paddle structure for an anti-adhesion precious metal material mixer according to claim 2, characterized in that: The cleaning rack (225) is rotatably connected to the drive shaft (214), and the "X" shaped structure on the top of the cleaning rack (225) is located above the protruding structure on the outside of the drive shaft (214). A spiral structure that contacts the inner wall of the material cylinder (211) is provided below the cleaning rack (225).

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