A high-precision quantitative screening device

Abstract

The utility model discloses a high accuracy ration powder screening device relates to powder screening technical field. Including powder screening mechanism, drive mechanism and ration powder falling mechanism, the powder screening mechanism includes vibration table and powder screening bin, the top fixedly connected with angle adjusting mechanism of vibration table, the top of angle adjusting mechanism is fixedly connected with the bottom of powder screening bin, the inner wall of powder screening bin is provided with hopper no. One and hopper no. Two, the top of powder screening bin is provided with the casing, the top fixedly connected with ultrasonic vibrator of casing, the inner wall fixedly connected with screen frame of powder screening bin, the top fixedly connected with flexible arm link of screen frame, the lower extreme of ultrasonic vibrator is connected with flexible arm link. Through with ration powder feeding, sealed conveying and screening function integrated design, form the dust screening system of full -enclosed, cooperate sealed ration powder feeding mechanism, effectively curb the generation of dust, reduced dust leakage, improved working environment.

Description

Technical Field

[0001] This utility model relates to the field of powder sieving technology, and in particular to a high-precision quantitative powder sieving device. Background Technology

[0002] In the field of powder material processing, sieving and quantitative feeding are core processes affecting product quality and production efficiency. Traditional powder sieving devices generally suffer from technical pain points such as insufficient metering accuracy, low system integration, poor sealing, serious dust emission, and difficulty in balancing sieving efficiency and accuracy, which severely restricts their application in high-standard industries (such as pharmaceuticals, high-end food, and new energy materials). Therefore, there is an urgent need to develop a powder sieving device that integrates high-precision quantitative feeding, efficient sealing, dust control, and anti-clogging sieving technology. Utility Model Content

[0003] The purpose of this invention is to provide a high-precision quantitative powder screening device, which solves the technical problems mentioned in the background art by integrating ultrasonic vibration, adjustable angle screening and quantitative feeding mechanism.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-precision quantitative powder sieving device, comprising a powder sieving mechanism, a driving mechanism, and a quantitative powder feeding mechanism. The powder sieving mechanism includes a vibrating table and a powder sieving bin. An angle adjustment mechanism is fixedly connected to the top of the vibrating table, and the top of the angle adjustment mechanism is fixedly connected to the bottom of the powder sieving bin. The inner wall of the powder sieving bin is provided with a first feeding bin and a second feeding bin. The lower end of the first feeding bin is provided with a first discharge port, and the lower end of the second feeding bin is provided with a second discharge port. A cover is provided above the powder sieving bin, and an ultrasonic vibrator is fixedly connected to the top of the cover. A screen frame is fixedly connected to the inner wall of the powder sieving bin, and a flexible arm is fixedly connected to the top of the screen frame. The lower end of the ultrasonic vibrator is connected to the flexible arm.

[0005] Preferably, the quantitative powder dispensing mechanism includes a star-shaped wheel assembly, which is fixedly connected to the drive mechanism. A powder dispensing ring is rotatably connected to the inner wall of the star-shaped wheel assembly. The powder dispensing ring has a plurality of powder dispensing grooves arranged circumferentially. A powder dispensing cover is fixedly connected to the outer wall of the star-shaped wheel assembly, and the powder dispensing cover is located outside the powder dispensing ring.

[0006] Preferably, the powder discharge hood is provided with a feed inlet and a discharge outlet, the discharge outlet is located directly below the feed inlet, the hood is provided with a feed port, a corrugated pipe is provided between the feed port and the discharge outlet, and the feed port and the discharge outlet are connected by the corrugated pipe.

[0007] Preferably, the inner walls of both the first and second feeding bins are inclined.

[0008] Preferably, a rectangular groove is provided on the top of the cover, and an observation window is fixedly connected to the inner wall of the rectangular groove.

[0009] Preferably, a number of locking buckles are provided between the powder screening chamber and the cover.

[0010] Compared with related technologies, the high-precision quantitative powder sieving device provided by this utility model has the following beneficial effects: 1. This utility model provides a high-precision quantitative powder screening device. By integrating quantitative feeding, sealed conveying and screening functions into a single design, a fully enclosed dust screening system is formed. Combined with a sealed quantitative feeding mechanism, it effectively curbs dust generation, reduces dust leakage, and improves the working environment.

[0011] 2. This utility model provides a high-precision quantitative powder screening device. The star-shaped wheel group rotates at a preset angle, and the amount of powder falling at one time can be accurately measured. Then, through the combination of ultrasonic vibration system and flexible arm, vibration screening is realized during the powder falling process, and ultrafine powder and qualified powder are discharged through different outlets. While ensuring high screening accuracy, production efficiency is greatly improved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the cover of this utility model; Figure 3 This is a schematic diagram of the structure of the screen frame of this utility model; Figure 4 This is a schematic diagram of the internal structure of the powder screening chamber of this utility model; Figure 5 This is a schematic diagram of the quantitative powder dispensing mechanism of this utility model.

[0013] In the diagram: 1. Vibrating table; 2. Angle adjustment mechanism; 3. Powder sieving bin; 301. Feeding bin one; 302. Feeding bin two; 303. Discharge port one; 304. Discharge port two; 4. Cover; 401. Feed inlet; 402. Rectangular trough; 403. Observation window; 5. Ultrasonic vibrator; 6. Flexible arm; 7. Screen frame; 8. Drive mechanism; 9. Quantitative powder dropping mechanism; 901. Star wheel assembly; 902. Powder dropping ring; 903. Powder dropping trough; 904. Powder dropping cover; 10. Corrugated pipe; 11. Locking buckle. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and 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 protection scope of the present utility model.

[0015] Example: Please see Figures 1-5 This utility model provides a technical solution: a high-precision quantitative powder sieving device, including a powder sieving mechanism, a driving mechanism 8, and a quantitative powder dropping mechanism 9. The powder sieving mechanism includes a vibrating table 1 and a powder sieving bin 3. An angle adjustment mechanism 2 is fixedly connected to the top of the vibrating table 1, and the top of the angle adjustment mechanism 2 is fixedly connected to the bottom of the powder sieving bin 3. The angle adjustment mechanism 2 is installed between the powder sieving bin 3 and the vibrating table 1 to adjust the tilt angle of the powder sieving bin 3. The inner wall of the powder sieving bin 3 is provided with a first discharge bin 301 and a second discharge bin 302. The lower end of the first discharge bin 301 is provided with a first discharge port 303, and the second discharge bin 302 is provided with a second discharge port 302. The lower end is provided with a discharge port 304, which is respectively for collecting powders of different particle sizes. The top of the sieving chamber 3 is provided with a cover 4. The two are quickly locked by multiple sets of latches 11 to ensure the airtightness of the sieving environment. An ultrasonic vibrator 5 is fixedly connected to the top of the cover 4. A screen frame 7 is fixedly connected to the inner wall of the sieving chamber 3. A flexible arm 6 is fixedly connected to the top of the screen frame 7. The lower end of the ultrasonic vibrator 5 is connected to the flexible arm 6. The screen frame 7 has a built-in high-precision screen. When the ultrasonic vibrator 5 is working, the flexible arm 6 drives the screen frame 7 to vibrate at high frequency, thereby screening ultrafine powder and qualified powder. The quantitative powder dispensing mechanism 9 includes a star-shaped wheel assembly 901, which is fixedly connected to the drive mechanism 8. A powder dispensing ring 902 is rotatably connected to the inner wall of the star-shaped wheel assembly 901. The powder dispensing ring 902 has several powder dispensing grooves 903 arranged circumferentially. A powder dispensing cover 904 is fixedly connected to the outer wall of the star-shaped wheel assembly 901. The powder dispensing cover 904 is located outside the powder dispensing ring 902 and has an inlet and a outlet. The outlet is located directly below the inlet. An inlet 401 is provided on the cover shell 4. A corrugated pipe 10 is provided between the feed inlet 401 and the discharge outlet. The feed inlet 401 and the discharge outlet are connected by the corrugated pipe 10. The corrugated pipe 10 is made of food-grade flexible material and has both sealing and vibration damping functions. The star wheel assembly 901 is composed of a servo motor and a planetary reducer, which is driven by a servo motor. When running, it can guide the dust from the feed inlet of the dust collection hood 904 through the star wheel assembly 901 to the discharge outlet of the dust collection hood 904, and then transfer the dust through the corrugated pipe 10 and the feed inlet 401 to the dust sieving bin 3. A rectangular groove 402 is provided on the top of the cover 4, and an observation window 403 is fixedly connected to the inner wall of the rectangular groove 402 to facilitate real-time monitoring of the screening status. Several sets of latches 11 are provided between the powder screening chamber 3 and the cover 4 to facilitate sealing of the powder screening chamber 3 through the cover 4.

[0016] In this embodiment, the powder enters the sieving chamber 3 sequentially through the powder feeding port of the powder feeding hood 904 of the quantitative powder feeding mechanism 9, through the star-shaped wheel group 901, the discharge port of the powder feeding hood 904, the corrugated pipe 10, and the feeding port 401. After entering the sieving chamber 3, the powder falls on the surface of the screen. The sieving chamber 3 is adjusted to a suitable operating angle according to the angle adjustment mechanism 2. The ultrasonic vibrator 5 is connected to the flexible arm 6. Under the condition of the ultrasonic vibrator 5 running, the flexible arm 6 is driven to generate high-frequency up and down vibration. The vibration table 1 vibrates synchronously, so that the powder gradually slides down along the inner wall of the sieving chamber 3 under high-frequency vibration and is discharged from the sieving chamber 3 through the corresponding discharge port. The dust that meets the screen mesh size is discharged from the discharge port 303 under the action of the vibration table 1, and the dust that does not meet the screen mesh size is discharged from the discharge port 304 under the combined action of the vibration table 1 and the ultrasonic vibrator 5.

[0017] Working principle: During use, the powder material is fed from the external feeding system into the powder discharge hood 904 of the quantitative powder discharge mechanism 9. The drive mechanism 8 drives the star wheel group 901 to rotate at a uniform speed, quantitatively dividing the powder and discharging it through the powder discharge hood 904. The powder is then evenly fed into the sieving bin 3 through the corrugated pipe 10. Then, the ultrasonic vibrator 5 is activated, and the high-frequency vibration is transmitted to the screen frame 7 through the flexible arm 6, so that the powder is efficiently dispersed on the screen surface and the dust is screened through the screen. The ultrafine powder falls into the first feeding bin 301 and is discharged through the first discharge port 303, while the coarse powder enters the second feeding bin 302 and is collected through the second discharge port 304. During this process, the operator can adjust the screen surface inclination angle through the angle adjustment mechanism 2 to optimize the screening efficiency; and check the screen surface condition through the observation window 403. If necessary, the lock 11 can be opened to clean the screen and prevent screen blockage.

[0018] 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 high-precision quantitative powder sieving device, comprising a powder sieving mechanism, a driving mechanism (8), and a quantitative powder dispensing mechanism (9), characterized in that: The powder screening mechanism includes a vibrating table (1) and a powder screening bin (3). An angle adjustment mechanism (2) is fixedly connected to the top of the vibrating table (1). The top of the angle adjustment mechanism (2) is fixedly connected to the bottom of the powder screening bin (3). The inner wall of the powder screening bin (3) is provided with a first feeding bin (301) and a second feeding bin (302). The lower end of the first feeding bin (301) is provided with a first discharge port (303). The lower end of the second feeding bin (302) is provided with a second discharge port (304). A cover (4) is provided above the powder screening bin (3). An ultrasonic vibrator (5) is fixedly connected to the top of the cover (4). A screen frame (7) is fixedly connected to the inner wall of the powder screening bin (3). A flexible arm (6) is fixedly connected to the top of the screen frame (7). The lower end of the ultrasonic vibrator (5) is connected to the flexible arm (6).

2. The high-precision quantitative powder sieving device according to claim 1, characterized in that: The quantitative powder dispensing mechanism (9) includes a star-shaped wheel assembly (901), which is fixedly connected to the drive mechanism (8). A powder dispensing ring (902) is rotatably connected to the inner wall of the star-shaped wheel assembly (901). Several powder dispensing grooves (903) are arranged circumferentially on the powder dispensing ring (902). A powder dispensing cover (904) is fixedly connected to the outer wall of the star-shaped wheel assembly (901), and the powder dispensing cover (904) is located outside the powder dispensing ring (902).

3. The high-precision quantitative powder sieving device according to claim 2, characterized in that: The powder discharge hood (904) is provided with a feed inlet and a discharge outlet. The discharge outlet is located directly below the feed inlet. The cover (4) is provided with a feed inlet (401). A corrugated pipe (10) is provided between the feed inlet (401) and the discharge outlet. The feed inlet (401) and the discharge outlet are connected through the corrugated pipe (10).

4. The high-precision quantitative powder sieving device according to claim 1, characterized in that: The inner walls of both the first feeding bin (301) and the second feeding bin (302) are inclined.

5. The high-precision quantitative powder sieving device according to claim 1, characterized in that: The top of the cover (4) is provided with a rectangular groove (402), and an observation window (403) is fixedly connected to the inner wall of the rectangular groove (402).

6. The high-precision quantitative powder sieving device according to claim 1, characterized in that: Several sets of latches (11) are provided between the powder screening chamber (3) and the cover (4).

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