Medicine particle screening device

Abstract

The utility model relates to the technical field of medicine preparation, in particular to a medicine particle screening device which comprises a rack, a shell arranged on the rack, a screening roller obliquely arranged in the shell, a driving assembly used for driving the screening roller to rotate and an opening formed in the bottom of the shell. The screening roller is provided with an opening, the small particle containing groove, the medium particle containing groove and the large particle containing groove are formed below the opening, the dust removal assembly is arranged at the opening, a feeding hopper is arranged on the rack, and the bottom end of the feeding hopper extends into the screening roller; according to the utility model, not only can particles with larger outer diameters be filtered, but also particles with smaller outer diameters and redundant medicine powder can be filtered, so that the same number of particles can meet the dosage of medicine, and the treatment effect of the medicine is ensured.

Description

Technical Field

[0001] This utility model relates to the field of drug preparation technology, specifically a drug particle screening device. Background Technology

[0002] Drug granules are made by mixing raw materials (extracts for traditional Chinese medicine) with a certain proportion of excipients, using water or ethanol as a wetting agent, and forming granules of the required size through a granulation machine. The dosage of drug granules is crucial in treatment, thus requiring precise control over the size of each granule. Therefore, after granulation, a screening device is needed to remove granules with smaller or larger outer diameters to ensure adequate dosage and therapeutic effect. For example, Chinese patent CN217963411U discloses a drum-type drug granulation sieving machine, including a housing and a drum screen. A support ring is provided on the outer side of the drum screen, and support wheels are provided on both sides of the bottom of the housing. The support ring contacts the support wheels. A support block is connected to the right side of the top of the housing, and the top of the support block is rotatably connected to the right side of the bottom of the drum screen. A threaded block is connected to the left side of the bottom of the housing. This drug granulation drum-type granule sieving machine uses a drive screw to lift the left side of the drum screen, thus tilting the screen. The granules inside the drum screen roll to the right due to gravity, making it easy to remove any remaining granules and clean the inside of the screen. This ensures efficient granule sieving. The cover prevents external debris and dust from contaminating the granules, guaranteeing their quality.

[0003] However, in practical applications, the device can only screen out particles with larger outer diameters. Excess powder and smaller particles in the drug particles will pass through the drum screen and cannot be separated. When patients take the drug, the same number of smaller particles cannot meet the dosage, thus affecting the therapeutic effect of the drug. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a drug particle screening device that can filter not only particles with larger outer diameters but also particles with smaller outer diameters and excess drug powder, ensuring that the same number of particles can meet the drug dosage and guaranteeing the therapeutic effect of the drug.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A drug particle screening device includes a frame, a housing mounted on the frame, a screening roller inclinedly disposed within the housing, a drive assembly for driving the screening roller to rotate, an opening at the bottom of the housing, a small particle collection trough, a medium particle collection trough, and a large particle collection trough disposed below the opening, a dust removal assembly disposed at the opening, a feed hopper mounted on the frame, the bottom end of the feed hopper extending into the interior of the screening roller; the middle section of the screening roller is a medium particle filtration zone, one end of the medium particle filtration zone is a small particle filtration zone, and the other end of the medium particle filtration zone is a large particle filtration zone. The system has multiple medium-sized particle filter holes, multiple small-particle filter holes in the small-particle filter zone, and multiple large-particle filter holes in the large-particle filter zone. The diameter of the medium-sized particle filter holes is larger than that of the small-particle filter holes, and the diameter of the medium-sized particle filter holes is smaller than that of the large-particle filter holes. The large-particle filter zone is located near the lower end of the screening drum, and the small-particle filter zone is located near the upper end of the screening drum. The bottom end of the feed hopper extends into the small-particle filter zone. The small-particle collection trough, the medium-particle collection trough, and the large-particle collection trough are all located directly below the small-particle filter zone, respectively.

[0007] Furthermore, the housing contains multiple bearings, and the screening roller is mounted on the inner ring of the bearings.

[0008] Furthermore, a sealing plate is welded to the lowest end of the screening roller, and a drive shaft is fixedly connected to one side of the sealing plate; the drive assembly includes a motor and a reducer mounted on the frame, the output end of the motor is driven and connected to a drive wheel, a driven wheel is provided on the input shaft of the reducer, the drive wheel and the driven wheel are connected by a belt, and the output shaft of the reducer is driven and connected to the drive shaft.

[0009] Furthermore, a front side plate and a rear side plate are respectively provided on the front and rear sides of the opening, and the front side plate and the rear side plate are located between the medium particle collection tank and the screening roller; the dust removal assembly includes a powder collection tank installed at the bottom of the front side plate, a wind hood located at the rear side of the rear side plate, a wind duct connected to the wind hood at one end, a fan installed on the wind duct, a cloth bag at the bottom of the powder collection tank, and multiple air holes connected to the front side of the rear side plate are provided inside the wind hood, and the air holes are located directly opposite the rear side of the front side plate.

[0010] Furthermore, it also includes a controller, wherein both the drive assembly and the dust removal assembly are electrically connected to the controller.

[0011] The beneficial effects of this utility model are:

[0012] In practical applications, drug particles to be screened are fed into the small particle filtration zone through the feed hopper. As the drug particles roll downwards along the screening drum, the drive assembly drives the screening drum to rotate. Smaller particles and excess powder pass through the small particle filter holes and fall into the small particle collection trough under gravity. Medium-sized drug particles pass through the medium particle filter holes and fall into the medium particle collection trough, while larger drug particles pass through the large particle filter holes and fall into the large particle collection trough. This invention can filter both larger and smaller particles and excess powder, ensuring that the same number of particles can meet the drug dosage and guarantee the therapeutic effect of the drug. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a top view of the present invention;

[0015] Figure 3 yes Figure 2 Sectional view at point AA;

[0016] Figure 4 yes Figure 2 Cross-sectional view of section BB. Detailed Implementation

[0017] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a drug particle screening device includes a frame, a housing 1 mounted on the frame, a screening roller 2 inclinedly disposed within the housing 1, a drive assembly 3 for driving the screening roller 2 to rotate, an opening 11 at the bottom of the housing 1, a small particle collection tank 4, a medium particle collection tank 5, and a large particle collection tank 6 disposed below the opening 11, a dust removal assembly disposed at the opening 11, and a feed hopper 7 disposed on the frame, the bottom end of which extends into the interior of the screening roller 2. The middle section of the screening roller 2 is a medium particle filtration zone, one end of which is a small particle filtration zone, and the other end of which is a large particle filtration zone. The medium particle filtration zone is equipped with... The filter has multiple medium particle filter holes 21, multiple small particle filter holes 22, and multiple large particle filter holes 23. The diameter of the medium particle filter holes 21 is larger than that of the small particle filter holes 22, and the diameter of the medium particle filter holes 21 is smaller than that of the large particle filter holes 23. The large particle filter area is located near the lower end of the screening roller 2, and the small particle filter area is located near the upper end of the screening roller 2. The bottom end of the feed hopper 7 extends into the small particle filter area. The small particle collection trough 4, the medium particle collection trough 5, and the large particle collection trough 6 are located directly below the small particle filter area, the medium particle collection trough 5, and the large particle collection trough 6.

[0018] In use, the drug particles to be screened are fed into the small particle filtration zone through the feed hopper 7. As the drug particles roll downwards along the screening roller 2, the drive assembly 3 drives the screening roller 2 to rotate. Smaller particles and excess powder fall into the small particle collection trough 4 under gravity through the small particle filter holes 22. Medium-sized drug particles pass through the medium particle filter holes 21 and fall into the medium particle collection trough 5. Larger drug particles pass through the large particle filter holes 23 and fall into the large particle collection trough. This invention can filter both larger and smaller particles and excess powder, ensuring that the same number of particles can meet the drug dosage and guarantee the therapeutic effect of the drug.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the outer casing 1 is provided with a plurality of bearings 8, and the screening roller 2 is mounted on the inner ring of the bearings 8; in this embodiment, the outer casing 1 and the screening roller 2 are connected by the bearings 8, so that the screening roller 2 rolls more smoothly.

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a sealing plate 24 is welded to the lowest end of the screening roller 2, and a drive shaft 25 is fixedly connected to one side of the sealing plate 24; the drive assembly 3 includes a motor 31 and a reducer 32 mounted on the frame, the output end of the motor 31 is driven and connected to a drive wheel 33, a driven wheel 34 is provided on the input shaft of the reducer 32, the drive wheel 33 and the driven wheel 34 are connected by a belt 35, and the output shaft of the reducer 32 is driven and connected to the drive shaft 25; in this embodiment, the motor 31 drives the screening roller 2 to rotate through the drive wheel 33, the belt 35, the driven wheel 34, the reducer 32 and the drive shaft 25.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a front side plate 12 and a rear side plate 13 are respectively provided on the front and rear sides of the opening 11. The front side plate 12 and the rear side plate 13 are located between the medium particle collection tank 5 and the screening roller 2. The dust removal assembly includes a powder collection tank 91 installed at the bottom of the front side plate 12, a fan hood 92 located at the rear of the rear side plate 13, a duct 93 connected at one end to the fan hood 92, a fan 94 installed on the duct 93, and a cloth bag 95 at the bottom of the powder collection tank 91. The air hood 92 is provided with a plurality of air holes 131 that connect to the front side of the rear side plate 13. The air holes 131 are positioned directly opposite the rear side of the front side plate 12. In this embodiment, during the process of the medium-sized drug particles passing through the medium-sized particle filter hole 21 and falling into the medium-sized particle collection tank 5, the excess drug powder in the medium-sized drug particles during the falling process is blown to the front side plate 12 by the fan 94, air duct 93, air hood 92 and air holes 131, and slides along the front side plate 12 into the powder collection tank 91 and the cloth bag 95.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it also includes a controller, and the drive component 3 and the dust removal component are both electrically connected to the controller; in this embodiment, the drive component 3 and the dust removal component can be controlled by the controller.

[0023] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.

Claims

1. A drug particle screening device, characterized in that: The device includes a frame, a housing (1) mounted on the frame, a screening roller (2) inclinedly mounted inside the housing (1), a drive assembly (3) for driving the screening roller (2) to rotate, an opening (11) at the bottom of the housing (1), a small particle collection trough (4), a medium particle collection trough (5) and a large particle collection trough (6) below the opening (11), a dust removal assembly at the opening (11), and a feed hopper (7) mounted on the frame, the bottom end of which extends into the interior of the screening roller (2). The middle part of the screening drum (2) is a medium particle filtration zone, one end of the medium particle filtration zone is a small particle filtration zone, and the other end of the medium particle filtration zone is a large particle filtration zone. The medium particle filtration zone is provided with a plurality of medium particle filtration holes (21), the small particle filtration zone is provided with a plurality of small particle filtration holes (22), and the large particle filtration zone is provided with a plurality of large particle filtration holes (23). The aperture of the medium particle filtration hole (21) is larger than the aperture of the small particle filtration hole (22), and the aperture of the medium particle filtration hole (21) is smaller than the aperture of the large particle filtration hole (23). The large particle filtration zone is located near the lower end of the screening drum (2), and the small particle filtration zone is located near the upper end of the screening drum (2). The bottom end of the feed hopper (7) extends into the small particle filtration zone. The small particle collection trough (4) is located directly below the small particle filtration zone, the medium particle collection trough (5) is located directly below the medium particle filtration zone, and the large particle collection trough (6) is located directly below the large particle filtration zone.

2. The drug particle screening device according to claim 1, characterized in that, The outer casing (1) is provided with a plurality of bearings (8), and the screening roller (2) is mounted on the inner ring of the bearings (8).

3. The drug particle screening device according to claim 1, characterized in that, A sealing plate (24) is welded to the lowest end of the screening roller (2), and a drive shaft (25) is fixedly connected to one side of the sealing plate (24); the drive assembly (3) includes a motor (31) and a reducer (32) mounted on the frame, the output end of the motor (31) is driven and connected to a drive wheel (33), a driven wheel (34) is provided on the input shaft of the reducer (32), the drive wheel (33) and the driven wheel (34) are connected by a belt (35), and the output shaft of the reducer (32) is driven and connected to the drive shaft (25).

4. The drug particle screening device according to claim 1, characterized in that, The opening (11) is provided with a front side plate (12) and a rear side plate (13) on its front and rear sides respectively. The front side plate (12) and the rear side plate (13) are located between the medium particle collection trough (5) and the screening roller (2). The dust removal assembly includes a powder collection trough (91) installed at the bottom of the front side plate (12), a wind hood (92) located at the rear side of the rear side plate (13), a duct (93) connected to the duct (92) at one end, and a fan (94) installed on the duct (93). The bottom end of the powder collection trough (91) is a cloth bag (95). The duct (92) is provided with a plurality of air holes (131) connected to the front side of the rear side plate (13). The air holes (131) are located directly opposite the rear side of the front side plate (12).

5. The drug particle screening device according to claim 1, characterized in that, It also includes a controller, and the drive assembly (3) and the dust removal assembly are both electrically connected to the controller.

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