Rare earth luminescent material homogenizing and stirring apparatus

Abstract

The utility model relates to rare earth luminescent material production and processing equipment technical field discloses rare earth luminescent material uniform mixing stirring equipment, including support and fixed connection in support top's shell, is provided with stirring mechanism on the shell, and the stirring mechanism includes motor drive's rotating shaft and fixed on the rotating shaft's stirring vane and scraper, is provided with the smashing barrier mechanism in the shell inside, and the smashing barrier mechanism includes the inner bag fixed in the shell inside and is located heating ring between the shell and the inner bag, and the stirring vane bottom extension is connected with the cutting plate. The utility model through the heating ring to the inner bag continuous heating to dry material dehumidification, utilizes the cutting plate to break up the bottom agglomerate material, and cooperates the scraper to remove the inner wall attachment, has solved the problem that the rare earth luminescent material is easy to agglomerate and causes the mixed uneven problem because of the damp, has improved the mixing quality and raw material utilization rate.

Description

Technical Field

[0001] This utility model relates to the technical field of rare earth luminescent material production and processing equipment, and in particular to a uniform mixing and stirring equipment for rare earth luminescent materials. Background Technology

[0002] As a fundamental material for modern lighting, display and optoelectronic devices, the performance of rare earth luminescent materials directly determines the luminous efficiency and color stability of end products. In the preparation process of rare earth luminescent materials, the uniform mixing of multiple raw materials is a crucial step.

[0003] However, rare earth luminescent materials are ultrafine powders at the micron or even nanometer scale. These powders have a large specific surface area and high surface energy, which can adsorb a large amount of moisture from the air. When the powder particles are damp, the adsorption force between them is significantly enhanced, causing the material to agglomerate during the mixing process and form clumps that are difficult to break up. If the mixing equipment cannot effectively remove moisture and break up these agglomerates, it will directly lead to uneven mixing of the components, which will seriously affect the consistency of the luminous brightness and color purity of the final product.

[0004] Existing conventional mixing equipment uses a single mixing blade for mechanical tumbling. While this can achieve macroscopic material flow, it is often ineffective against stubborn agglomerates formed due to moisture. The mixing blades are unable to effectively break up clumps deposited at the bottom of the container, and the fine powder from the moisture will also adhere to the inner wall of the mixing container, forming a wall-mounted layer. This wall-mounted material not only cannot participate in effective mixing circulation, creating mixing dead zones, but also leads to the waste of expensive rare earth raw materials and cross-contamination between batches. Current equipment lacks targeted drying, dehumidification, and auxiliary crushing functions, making it difficult to solve the problems of material agglomeration due to moisture and wall-mounted residue while mixing.

[0005] Therefore, this invention proposes a device for uniformly mixing and stirring rare earth luminescent materials to address the shortcomings of existing technologies. Utility Model Content

[0006] In view of the problems in the prior art, rare earth luminescent materials have formed agglomerates that are difficult to break due to increased adsorption between particles caused by moisture during the mixing process, and fine powder adsorbed on the inner wall of the container, resulting in uneven mixing and material waste, the present invention aims to provide a rare earth luminescent material uniform mixing and stirring device with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a device for uniformly mixing and stirring rare earth luminescent materials, including: a support frame, a shell fixedly connected to the top of the support frame, a stirring mechanism disposed on the shell, and a crushing and blocking mechanism disposed inside the shell.

[0008] The stirring mechanism includes a support frame fixedly connected to the top of the outer side of the outer shell. A fixing ring is fixedly connected to the middle of the inner side of the support frame. A motor is sleeved inside the fixing ring. A gearbox is fixedly connected to the output end of the motor. A rotating shaft is fixedly connected to the output end of the gearbox. Stirring blades are fixedly connected to the upper and lower sides of the outer wall of the rotating shaft. A scraper is fixedly connected to the outer side of the stirring blades.

[0009] Furthermore, the crushing and blocking mechanism includes an inner liner fixedly connected to the inside of the outer shell, a heating ring installed between the outer shell and the inner liner, a fixing rod fixedly connected to the bottom of the stirring blade, and a cutting plate fixedly connected to the bottom of the fixing rod horizontally.

[0010] Preferably, the crushing and blocking mechanism further includes a second support frame fixedly connected to the bottom of the outer shell. The second support frame has sliding grooves on its top front and rear sides, and the second support frame provides a basic guiding structure for subsequent moving parts through the sliding grooves.

[0011] Preferably, a partition is slidably connected to the top of the second support frame, and a guide rod is fixedly connected to the bottom of the partition at a position corresponding to the slide groove. The guide rod is slidably connected inside the slide groove, and the partition controls the opening and closing of the bottom discharge port of the outer shell through the sliding cooperation of the guide rod in the slide groove.

[0012] Preferably, a handle is fixedly connected to the left end of the partition, and a guide cylinder is fixedly connected to the outer side of the second support frame. The outer side of the partition is slidably connected to the inside of the guide cylinder. The handle is used to provide a force application point for manual operation, and the guide cylinder serves as an auxiliary guide to further constrain the movement trajectory of the partition.

[0013] Preferably, the bottom front and rear sides of the housing are fixedly connected to connecting plates, and the top front and rear sides of the partition are slidably connected to shaft pins, which are used as key actuators for position locking.

[0014] Preferably, the shaft pin is constructed to pass through the connecting plate, the partition plate and the second support frame from top to bottom, thereby achieving relative fixation between the components using this through-type connection.

[0015] Preferably, the connecting plate, the partition plate, and the second support frame are provided with corresponding pin holes for the shaft pin to pass through. The shaft pin restricts the movement of the partition plate through the pin holes, thereby ensuring the stability of the partition plate's position during long-term stirring or discharging.

[0016] Preferably, the outer side of the scraper is fitted to the inner wall of the inner liner. This fitting arrangement allows the scraper to continuously scrape off the material adhering to the inner wall of the inner liner when rotating, preventing it from accumulating on the wall.

[0017] Preferably, the cutting plate is located inside the inner liner, and the cutting plate rotates synchronously with the rotation of the stirring blade. The cutting plate located at the bottom can effectively physically break up the deposited agglomerated materials.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problem that rare earth luminescent materials agglomerate due to increased adsorption force on the particle surface caused by moisture during the mixing process by setting a heating ring between the outer shell and the inner liner, and setting a fixing rod and a cutting plate extending from the bottom of the stirring blade. It achieves the effect of continuously drying and dehumidifying the internal materials to reduce the adsorption force between particles, and simultaneously using the rotating cutting plate to physically break up the large agglomerated materials at the bottom, thereby significantly improving the fineness and uniformity of the rare earth luminescent material mixing.

[0020] 2. This utility model solves the problem of fine powder in rare earth luminescent materials adsorbing onto the inner wall of the mixing container, forming a mixing dead zone and being difficult to clean, by fixing a scraper to the outside of the stirring blade and rotating the outer side of the scraper against the inner wall of the inner liner. It achieves the effect of continuously scraping off the material attached to the inner wall and pushing it back to the mixing area during the stirring process, ensuring that all raw materials can fully participate in the mixing cycle, preventing residues on the wall and improving the utilization rate of expensive raw materials.

[0021] 3. This utility model solves the problems of existing equipment's difficulty in flexibly controlling the mixing time and insufficient sealing of the discharge port by setting a partition plate that slides with a sliding groove and guide rod on the bottom support frame and locking the position by the insertion and engagement of the shaft pin and pin hole. It achieves the effect of being able to accurately control the opening and closing of the discharge port according to process requirements, which can not only achieve reliable sealing during the mixing stage to support long-term mixing, but also ensure smooth and stable movement of the partition plate during the discharge stage. It is convenient to operate and has a stable structure. Attached Figure Description

[0022] Figure 1 A perspective view of the rare earth luminescent material uniform mixing and stirring device proposed in this utility model;

[0023] Figure 2 This is a front view of the rare earth luminescent material uniform mixing and stirring device proposed in this utility model;

[0024] Figure 3 This is a partial structural cross-sectional view of the rare earth luminescent material uniform mixing and stirring device proposed in this utility model;

[0025] Figure 4 This is a partial structural diagram of the rare earth luminescent material uniform mixing and stirring device proposed in this utility model;

[0026] Figure 5 This is a partial structural schematic diagram of the rare earth luminescent material uniform mixing and stirring device proposed in this utility model.

[0027] Legend:

[0028] 1. Support frame; 2. Stirring mechanism; 201. Support frame one; 202. Fixing ring; 203. Motor; 204. Gearbox; 205. Rotating shaft; 206. Stirring blade; 207. Scraper; 3. Crushing and blocking mechanism; 301. Inner liner; 302. Heating ring; 303. Fixing rod; 304. Cutting plate; 305. Support frame two; 306. Slide groove; 307. Connecting plate; 308. Shaft pin; 309. Partition plate; 310. Guide rod; 311. Handle; 312. Guide cylinder; 4. Outer shell. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] Example:

[0031] Please refer to Figures 1 to 5 This utility model provides a device for uniformly mixing rare earth luminescent materials. This utility model aims to solve the structural defects in the prior art, such as rare earth luminescent materials agglomerating into lumps due to moisture during the mixing process, fine particles adsorbing onto the inner wall of the container, resulting in uneven mixing and incomplete discharge.

[0032] Please refer to Figure 1 and Figure 2The rare earth luminescent material uniform mixing and stirring equipment includes a support frame 1 as the overall basic support component, and a housing 4 fixedly connected to the top of the support frame 1 by bolts. The support frame 1 provides stable ground support for the entire equipment to prevent shaking during operation. The housing 4 is fixedly connected to the top of the support frame 1, and the interior of the housing 4 forms a cylindrical cavity for containing the rare earth luminescent material. In order to perform active mixing treatment on the rare earth luminescent material contained inside the housing 4, a stirring mechanism 2 is provided on the housing 4. The main body of the stirring mechanism 2 extends vertically from the top of the housing 4 into the interior of the housing 4. The stirring mechanism 2 is used to drive the rare earth luminescent material to mix externally using rotational mechanical force. The shell 4 undergoes multi-dimensional tumbling and flow. To further improve the mixing quality and solve the problem of material agglomeration in conjunction with the stirring mechanism 2, a crushing and blocking mechanism 3 is set inside and at the bottom of the shell 4. The crushing and blocking mechanism 3 forms an organic linkage structure with the shell 4 and the stirring mechanism 2. The crushing and blocking mechanism 3 is used to simultaneously dry and dehumidify the rare earth luminescent material, physically crush the agglomerated material, and control the discharge of the mixed material during the stirring process. Through the mutual cooperation and connection of the support 1, the shell 4, the stirring mechanism 2, and the crushing and blocking mechanism 3, an overall mechanical structure that can prevent the rare earth luminescent material from getting damp and agglomerating and achieve efficient and uniform mixing is constructed.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3The stirring mechanism 2 includes a support frame 201 fixedly connected to the top of the outer side of the outer shell 4. The support frame 201 is arched and spans the top opening of the outer shell 4, providing overhead mounting space for the power components. A fixing ring 202 is fixedly connected to the middle of the inner side of the support frame 201. The fixing ring 202 is a ring structure with a hollow through hole. A motor 203 is fixedly sleeved inside the fixing ring 202. The motor 203, as the power source of the stirring mechanism 2, is stably suspended above the outer shell 4. The output end of the motor 203 extends downward and is fixedly connected to a gearbox 204. The support frame 201 and the fixing ring 202 cooperate to provide rigid support for the motor 203 to ensure the stability of the motor 203 during operation. The gearbox 204 is used to adjust the output speed of the motor 203 according to different requirements of the stirring process to adapt to the different shear force requirements of the rare earth luminescent material at different mixing stages. A rotating shaft 205 is fixedly connected to the output end of the gearbox 204. The rotating shaft 205 coaxially passes through the top of the outer shell 4 and extends vertically downward to the outer shell 4. Inside the internal cavity, stirring blades 206 are fixedly connected to the upper and lower sides of the outer wall of the rotating shaft 205. The stirring blades 206 extend radially outward along the rotating shaft 205 and have a preset tilt angle. The stirring blades 206 are used to push the rare earth luminescent material to generate a composite flow in the axial and radial directions when rotating. In order to solve the problem of rare earth luminescent material adsorbing onto the inner wall of the outer shell 4, a scraper 207 is fixedly connected to the radially outer end of the stirring blade 206. The scraper 207 extends vertically and its outer surface is structured to be flush with the outer shell. 4. The inner wall contour of the inner liner 301 is matched. After the motor 203 is started, the rotational force is transmitted to the rotating shaft 205 through the gearbox 204. The rotating shaft 205 synchronously drives the stirring blade 206 and the scraper 207 to rotate. The stirring blade 206 mixes the rare earth luminescent material, while the scraper 207 rotates close to the inner wall of the inner liner 301, continuously scraping off the rare earth luminescent material attached to the inner wall and pushing it back to the stirring area, thereby preventing the material from sticking to the wall and ensuring that all materials can fully participate in the mixing cycle.

[0034] As a preferred embodiment, to address the problem that excessive moisture content in rare earth luminescent materials leads to increased adsorption on particle surfaces and exacerbates agglomeration, thus affecting the mixing effect, a crushing and blocking mechanism 3 is installed inside the outer shell 4. The crushing and blocking mechanism 3 mainly consists of an inner liner 301, a heating ring 302, a fixing rod 303, and a cutting plate 304. The inner liner 301 is fixedly connected inside the outer shell 4, serving as a container that directly contacts and holds the rare earth luminescent material. A heating ring 302 is installed in the interlayer space between the outer shell 4 and the inner liner 301. The heating ring 302 is fitted and fixed to the outer wall of the inner liner 301. When the heating ring 302 is powered on, it generates heat, which is conducted through the wall of the inner liner 301 to… The internal rare earth luminescent material continuously dries and dehumidifies the material to reduce the adsorption force between particles. At the same time, multiple fixing rods 303 are fixedly connected at equal intervals at the bottom of the stirring blade 206. The fixing rods 303 extend vertically downwards, and a cutting plate 304 is horizontally fixedly connected to the bottom of the fixing rods 303. The cutting plate 304 has a flat structure and is located above the bottom of the inner liner 301. When the stirring blade 206 rotates, the fixing rods 303 drive the cutting plate 304 to rotate synchronously around the axis of the rotating shaft 205. The rotating cutting plate 304 physically cuts and breaks up the large rare earth agglomerates deposited at the bottom due to moisture or compression. Together with the drying effect of the heating ring 302, it improves the mixing effect.

[0035] In a preferred embodiment, in order to flexibly control the stirring time of the rare earth luminescent material inside the inner liner 301, a second support frame 305 is fixedly connected to the bottom of the outer shell 4. The second support frame 305 is a rectangular frame structure and is fixed below the discharge port at the bottom of the outer shell 4. The top front and rear sides of the second support frame 305 are provided with horizontal grooves 306. The top of the second support frame 305 is slidably connected to a partition 309 for closing or opening the discharge port. The bottom of the partition 309 is fixedly connected to a guide rod 310 corresponding to the position of the groove 306. The guide rod 310 is slidably embedded in the interior of the groove 306. The groove 306 and the guide rod 310 cooperate with each other to provide accurate linear guidance for the horizontal movement of the partition 309, ensuring that the movement of the partition 309 is smooth and does not deviate.

[0036] In a preferred embodiment, to facilitate manual control of the opening and closing of the partition 309 by the operator, a handle 311 is fixedly connected to the left end of the partition 309. The operator can drive the partition 309 to move by holding the handle 311 and applying a horizontal pushing force. At the same time, a guide cylinder 312 is fixedly connected to the outside of the support frame 305. The outside of the partition 309 slides through the inside of the guide cylinder 312. The guide cylinder 312, as an auxiliary guiding structure, cooperates with the slide groove 306 to further restrict the degree of freedom of movement of the partition 309 to only the horizontal straight line direction, preventing the partition 309 from swaying up and down or tilting to the side during movement.

[0037] In a preferred embodiment, to ensure that the partition 309 can be reliably locked after being moved to a predetermined position to prevent accidental opening or closing, the bottom front and rear sides of the outer shell 4 are fixedly connected with connecting plates 307, and the top front and rear sides of the partition 309 are slidably connected with shaft pins 308. The connecting plates 307, partition 309 and support frame 2 305 are respectively provided with pin holes in the vertical direction for the shaft pins 308 to pass through. The shaft pins 308 can pass through the pin holes on the connecting plates 307, the partition 309 and the support frame 2 305 from top to bottom in sequence. The mechanical insertion and engagement of the shaft pins 308 realizes the rigid locking of the position of the partition 309, so that the partition 309 can be stably kept in the closed state when the rare earth luminescent material is stirred inside the inner liner 301 for a long time, or kept in the open state when discharging.

[0038] Working principle:

[0039] When it is necessary to mix rare earth luminescent materials, first ensure that the partition 309 is in the closed position and lock it by using the shaft pin 308 through the pin hole on the connecting plate 307, the partition 309 and the support frame 305. Then, put the rare earth luminescent material to be processed into the inner liner 301 inside the outer shell 4, start the motor 203, and the motor 203 transmits the rotation power to the rotating shaft 205 through the gearbox 204. The rotating shaft 205 drives the stirring blade 206, the scraper 207 and the cutting plate 304 to rotate synchronously. During the rotation, the stirring blade 206 tumbles and stirs the rare earth luminescent material in multiple dimensions, so that the material particles of different densities can fully contact and mix. At the same time, the scraper 207 rotates close to the inner wall of the inner liner 301 to scrape off the fine powder attached to the inner wall, preventing the residue on the wall due to static electricity or moisture, and ensuring that all materials participate in the mixing cycle.

[0040] To address the tendency of rare earth luminescent materials to agglomerate when damp, the heating ring 302 is activated during the stirring process. The heat generated by the heating ring 302 is transferred to the material inside through the inner liner 301, continuously drying the material and reducing the moisture adsorption force on the particle surface. At the same time, the cutting plate 304 at the bottom rotates at high speed with the rotating shaft 205, mechanically cutting and crushing the large agglomerates formed at the bottom of the inner liner 301 due to moisture or accumulation pressure. Combined with the drying effect of the heating ring 302, the agglomerates are effectively dispersed, significantly improving the uniformity and fineness of the mixture. If it is necessary to extend the stirring time to achieve a higher mixing standard, the operator can keep the partition 309 closed and locked, so that the material can continuously undergo heating, crushing, stirring and wall scraping circulation in the sealed inner liner 301.

[0041] When the mixing process is complete and material needs to be discharged, the operator pulls the shaft pin 308 upward to release the lock, and then holds the handle 311 and pushes it to the right. Under the combined guidance of the guide cylinder 312, the slide 306 and the guide rod 310, the partition 309 moves smoothly in a straight line to open the discharge port at the bottom of the outer shell 4. The uniformly mixed and dry rare earth luminescent material can then be smoothly discharged from the bottom, completing the entire production process.

Claims

1. A device for uniformly mixing and stirring rare earth luminescent materials, comprising: The bracket (1), the outer shell (4) fixedly connected to the top of the bracket (1), the stirring mechanism (2) disposed on the outer shell (4), and the crushing and blocking mechanism (3) disposed inside the outer shell (4); Its features are, The stirring mechanism (2) includes a support frame (201) fixedly connected to the top of the outer side of the outer shell (4). A fixing ring (202) is fixedly connected to the middle of the inner side of the support frame (201). A motor (203) is sleeved inside the fixing ring (202). A gearbox (204) is fixedly connected to the output end of the motor (203). A rotating shaft (205) is fixedly connected to the output end of the gearbox (204). A stirring blade (206) is fixedly connected to the upper and lower sides of the outer wall of the rotating shaft (205). A scraper (207) is fixedly connected to the outer side of the stirring blade (206). The crushing and blocking mechanism (3) includes an inner liner (301) fixedly connected inside the outer shell (4), a heating ring (302) is installed between the outer shell (4) and the inner liner (301), a fixing rod (303) is fixedly connected to the bottom of the stirring blade (206), and a cutting plate (304) is horizontally fixedly connected to the bottom of the fixing rod (303).

2. The rare earth luminescent material uniform mixing and stirring equipment according to claim 1, characterized in that, The crushing and blocking mechanism (3) also includes a second support frame (305) fixedly connected to the bottom of the outer shell (4), and the second support frame (305) has sliding grooves (306) on the front and rear sides of its top.

3. The rare earth luminescent material uniform mixing and stirring equipment according to claim 2, characterized in that, The top of the second support frame (305) is slidably connected to a partition plate (309), and the bottom of the partition plate (309) is fixedly connected to a guide rod (310) at a position corresponding to the slide groove (306).

4. The rare earth luminescent material uniform mixing and stirring equipment according to claim 3, characterized in that, A handle (311) is fixedly connected to the left end of the partition (309), and a guide cylinder (312) is fixedly connected to the outer side of the second support frame (305). The outer side of the partition (309) is slidably connected to the inside of the guide cylinder (312).

5. The rare earth luminescent material uniform mixing and stirring equipment according to claim 3, characterized in that, The bottom front and rear sides of the outer shell (4) are fixedly connected to a connecting plate (307), and the top front and rear sides of the partition (309) are slidably connected to a shaft pin (308).

6. The rare earth luminescent material uniform mixing and stirring device according to claim 5, characterized in that, The pin (308) is configured to pass through the connecting plate (307), the partition plate (309), and the support frame (305) from top to bottom.

7. The rare earth luminescent material uniform mixing and stirring device according to claim 6, characterized in that, The connecting plate (307), the partition plate (309), and the second support frame (305) are respectively provided with pin holes for the shaft pin (308) to pass through.

8. The rare earth luminescent material uniform mixing and stirring equipment according to claim 1, characterized in that, The outer side of the scraper (207) is fitted to the inner wall of the inner liner (301).

9. The rare earth luminescent material uniform mixing and stirring equipment according to claim 1, characterized in that, The cutting plate (304) is located inside the inner liner (301), and the cutting plate (304) rotates synchronously with the rotation of the stirring blade (206).

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