Chinese herbal medicine powder screening device

Abstract

The utility model relates to the technical field of medicine powder screening devices, and discloses a Chinese herbal medicine powder screening device which comprises a screening box body, a fixing support is installed on the top of the screening box body, a driving shaft is rotationally connected to the fixing support, driving bottom plates are installed on the side walls of the driving shaft respectively, and bull eye balls are symmetrically installed on the outer walls of the bottoms of the driving bottom plates. Fixing rings are installed on the inner walls of the screening box correspondingly, guide supporting shafts are slidably connected to the fixing rings in a clamped mode, the driving bottom plate is driven to rotate so that the screening frame can be driven to descend, and when the bull eye balls are separated from the limiting blocks, the screening frame is driven to move upwards through supporting springs so that the screening frame can vibrate up and down; and by pulling the limiting plates, when the side baffles are pulled towards the outer side, protrusions of the limiting plates do not abut against the limiting side plates any more, so that the side baffles can be directly taken down from the screening box, and then particulate matter remaining in the screening frame can be cleaned.

Description

Technical Field

[0001] This utility model relates to the technical field of medicinal powder sieving devices, and in particular to a sieving device for traditional Chinese medicine powder. Background Technology

[0002] Grinding and sieving Chinese medicinal herbs are key steps in the processing of Chinese medicine, directly affecting the fineness, uniformity, and efficacy of the powder. Grinding is mainly to improve efficacy, facilitate administration and storage, while sieving after grinding is mainly to separate out the medicinal materials that have not been completely ground into powder, thereby improving the fineness of the powder.

[0003] A search revealed a Chinese patent authorization announcement number CN221536920U, which discloses a pharmaceutical powder sieving and separation device, specifically relating to the field of pharmaceutical powder sieving. This utility model includes a sieving tank, with a fixed ring fixedly connected to the outer surface of the tank. A support rod is fixedly connected to the outer surface of the fixed ring, and a base is fixedly connected to one end of the support rod. By setting up a fine sieving and grinding device, under the action of a first filter screen and a second filter screen, the holes of the first filter screen are larger than those of the second filter screen but smaller than the size of the raw material. Therefore, under the action of the holes of the first filter screen, some of the agglomerated small particles can be sieved onto the second filter screen. The holes of the second filter screen are adapted to the size of the pharmaceutical powder. At this time, under the action of the agitating tip, the agglomerated pharmaceutical powder can be agitated into smaller clumps, which can then fall onto the second filter screen and be ground into powder under the action of the grinding balls, eventually falling to the bottom. This avoids the agglomerated pharmaceutical powder being processed together with unground raw materials, preventing repetitive labor and waste of pharmaceutical powder.

[0004] However, in implementing the relevant technology, the following problems were found with the above-mentioned screening and separation device: the existing technology screens the medicinal powder directly on the filter screen, which is not efficient. Furthermore, after screening, the residual particles on the filter screen are not easy to remove. Based on this, the present invention designs a screening device for Chinese herbal medicine powder to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sieving device for Chinese herbal medicine powder, so as to solve the problems of poor sieving efficiency and inconvenience in removing residual particles in the prior art mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sieving device for Chinese herbal medicine powder, comprising a sieving box, a fixed bracket installed on the top of the sieving box, a drive shaft rotatably connected to the fixed bracket, a drive base plate installed on the side wall of the drive shaft, and symmetrically installed bull's eye ball bearings on the bottom outer wall of the drive base plate;

[0007] Fixed rings are installed on the inner wall of the screening box. Guide support shafts are slidably engaged on the fixed rings. Support springs are provided on the side walls of the guide support shafts. Screening frames are installed at the bottom of the guide support shafts. Limiting blocks are symmetrically installed on the inner wall of the screening frames.

[0008] As a preferred embodiment, stirring shafts are respectively installed on the bottom outer wall of the drive base plate.

[0009] As a preferred embodiment, limit side plates are respectively installed on the side walls of the screening box, side baffles are provided on the side walls of the screening box, fixed side plates are respectively installed on one side wall of the side baffles, guide rods are respectively installed on one side wall of the fixed side plates, limit plates are slidably engaged on the guide rods, and compression springs for pressing the limit plates are provided on the side walls of the guide rods.

[0010] As a preferred embodiment, a positioning shaft is installed on one side wall of the limiting side plate, and the side baffle is engaged with the positioning shaft.

[0011] As a preferred embodiment, a buffer pad is provided on the side wall of the guide support shaft, and the buffer pad is located between the fixing ring and the screening frame.

[0012] As a preferred embodiment, guide covers for guiding the powder are installed on the inner wall of the screening box.

[0013] As a preferred embodiment, a drive motor is installed on the top outer wall of the fixed bracket, a driving helical gear is connected to the output end of the drive motor, a driven helical gear is installed at the top end of the drive shaft, and the driving helical gear meshes with the driven helical gear.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By driving the base plate to rotate, the screening frame can be lowered. When the bullseye ball is disengaged from the limit block, the support spring drives the screening frame to move upward, so that the screening frame can vibrate up and down, which helps to improve the screening efficiency.

[0016] 2. By pulling the limiting plate, when the side baffle is pulled outward, the protrusion of the limiting plate no longer abuts against the limiting side plate, so that the side baffle can be directly removed from the screening box, and then the residual particles inside the screening frame can be cleaned. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram showing a partial cross-section of the present invention.

[0019] Figure 3 This is a schematic diagram of the stirring shaft structure of this utility model.

[0020] Figure 4 This utility model Figure 1 Enlarged diagram of point A in the diagram.

[0021] Figure 5 This utility model Figure 2 Enlarged diagram of point B in the image.

[0022] Figure 6 This utility model Figure 3 Enlarged diagram of point C in the image.

[0023] In the diagram: 1. Screening box; 2. Fixed bracket; 3. Drive shaft; 4. Fixed ring; 5. Guide support shaft; 6. Screening frame; 7. Support spring; 8. Buffer pad; 9. Limiting block; 10. Drive base plate; 11. Stirring shaft; 12. Bullseye ball bearing; 13. Limiting side plate; 14. Side baffle; 15. Fixed side plate; 16. Guide rod; 17. Limiting plate; 18. Compression spring; 19. Positioning shaft; 20. Guide cover; 21. Drive motor; 22. Driving helical gear; 23. Driven helical gear. Detailed Implementation

[0024] 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.

[0025] This utility model provides, for example Figure 1-6The device for sieving powder of traditional Chinese medicine shown includes a sieving box 1. A fixed bracket 2 is installed on the top of the sieving box 1. A drive shaft 3 is rotatably connected to the fixed bracket 2. Two drive base plates 10 are installed on the side walls of the drive shaft 3. Bullseye balls 12 are symmetrically installed on the bottom outer wall of the drive base plates 10. The two bullseye balls 12 are respectively installed at both ends of the drive base plates 10. Two fixing rings 4 are installed on the inner wall of the sieving box 1. Four guide support shafts 5 are slidably engaged on the fixing rings 4. Support springs 7 are provided on the side walls of the guide support shafts 5. A sieving frame 6 is installed at the bottom of the guide support shaft 5. Sieving holes are started at the bottom of the sieving frame 6. Limiting blocks 9 are symmetrically installed on the inner wall of the sieving frame 6. The top of the limiting blocks 9 is inclined. The drive base plates 10... A stirring shaft 11 is installed on the bottom outer wall of the device. When using the device, the ground medicine powder is first transported into the sieving box 1, and then the drive shaft 3 is driven to rotate, so that the drive base plate 10 can rotate. The stirring shaft 11 at the bottom of the drive base plate 10 can stir the medicine powder inside the sieving frame 6, thereby breaking up some of the clumps of medicine powder. At the same time, the bullseye ball bearing 12 at the bottom of the drive base plate 10 can contact the inclined surface at the top of the limiting block 9. Therefore, during the rotation of the drive base plate 10, the bullseye ball bearing 12 can abut against the inclined surface of the limiting block 9, thereby driving the bullseye ball bearing 12 to descend, which in turn drives the sieving frame 6 to descend. When the bullseye ball bearing 12 disengages from the limiting block 9, the supporting spring 7 can drive the sieving frame 6 to move upward, thereby causing the sieving frame 6 to vibrate up and down. By driving the sieving frame 6 to vibrate up and down, the sieving efficiency of the sieving frame 6 can be effectively improved.

[0026] In this embodiment, as Figure 1 and Figure 4As shown, limiting side plates 13 are installed on the side walls of the screening box 1, and side baffles 14 are provided on the side walls of the screening box 1. Fixed side plates 15 are installed on one side wall of the side baffles 14, and guide rods 16 are installed on one side wall of the fixed side plates 15. Limiting plates 17 are slidably engaged with the guide rods 16. The limiting plates 17 are L-shaped plates, which limit the limiting side plates 13, so that when the side baffles 14 move outward, the limiting side plates 13 can block the protrusion of the limiting plates 17, thus preventing the side baffles 14 from being removed. Compression springs 18 for pressing the limiting plates 17 are provided on the side walls of the guide rods 16, and positioning shafts 19 are installed on one side wall of the limiting side plates 13. The side baffles 14 are engaged with the positioning shafts 19. By engaging the side baffle 14 with the positioning shaft 19, the side baffle 14 can be limited, which helps to improve the stability of the side baffle 14 after installation. After screening, first pull the limiting plate 17 so that it no longer limits the limiting side plate 13. When the side baffle 14 is pulled outward, the protrusion of the limiting plate 17 no longer abuts against the limiting side plate 13, so that the side baffle 14 can be removed from the screening box 1. Then, the residual particles inside the screening frame 6 can be cleaned. After cleaning, by placing the side baffle 14 on one side of the limiting side plate 13, while engaging the side baffle 14 with the positioning shaft 19, and by using the compression spring 18 to abut against the limiting plate 17, the limiting plate 17 can limit the limiting side plate 13, thereby fixing the side baffle 14.

[0027] In this embodiment, as Figure 5 As shown, a buffer pad 8 is provided on the side wall of the guide support shaft 5, and the buffer pad 8 is located between the fixed ring 4 and the screening frame 6. When the support spring 7 drives the screening frame 6 to move upward, the side of the screening frame 6 can contact the buffer pad 8, so that the buffer pad 8 can absorb the impact force generated when the screening frame 6 retracts, which helps to reduce the noise when the screening frame 6 vibrates up and down.

[0028] In this embodiment, as Figure 3 As shown, guide covers 20 for guiding the powder are installed on the inner wall of the screening box 1. There are two guide covers 20, and one guide cover 20 is installed on each screening frame 6. The guide covers 20 can guide the powder so that all the powder can fall into the screening frame 6.

[0029] In this embodiment, as Figure 3 As shown, a drive motor 21 is installed on the top outer wall of the fixed bracket 2. A drive helical gear 22 is connected to the output end of the drive motor 21. A driven helical gear 23 is installed at the top of the drive shaft 3. The drive helical gear 22 and the driven helical gear 23 are meshed and connected. The drive motor 21 drives the drive helical gear 22 at its output end to rotate, so that the driven helical gear 23 can drive the drive shaft 3 to rotate.

[0030] Working principle of this utility model: This utility model is a sieving device for Chinese herbal medicine powder. The ground medicine powder is transported into the sieving box 1. Then, the drive shaft 3 is driven to rotate, which causes the drive base plate 10 to rotate. This allows the stirring shaft 11 at the bottom of the drive base plate 10 to stir the medicine powder inside the sieving frame 6, which helps to break up some of the clumps of medicine powder. The bullseye ball bearing 12 at the bottom of the drive base plate 10 can contact the inclined surface at the top of the limiting block 9. As the drive base plate 10 rotates, the bullseye ball bearing 12 can descend against the limiting block 9, which can drive the sieving frame 6 to descend. When the bullseye ball bearing 12 disengages from the limiting block 9, the supporting spring 7 drives the sieving frame 6 to move upward, which makes the sieving frame 6 vibrate up and down, thereby improving the sieving efficiency.

[0031] After screening, by pulling the limiting plate 17, it is no longer limiting the limiting side plate 13. When the side baffle 14 is pulled outward, the protrusion of the limiting plate 17 no longer abuts against the limiting side plate 13, so that the side baffle 14 can be directly removed from the screening box 1. Then the residual particles inside the screening frame 6 can be cleaned.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sieving device for traditional Chinese medicine powder, comprising a sieving box (1), characterized in that: A fixed bracket (2) is installed on the top of the screening box (1), and a drive shaft (3) is rotatably connected to the fixed bracket (2). A drive base plate (10) is installed on the side wall of the drive shaft (3), and bullseye balls (12) are symmetrically installed on the bottom outer wall of the drive base plate (10). The inner wall of the screening box (1) is equipped with a fixing ring (4), and a guide support shaft (5) is slidably engaged on the fixing ring (4). A support spring (7) is provided on the side wall of the guide support shaft (5). A screening frame (6) is installed at the bottom end of the guide support shaft (5). Limiting blocks (9) are symmetrically installed on the inner wall of the screening frame (6).

2. The herbal medicine powder sieving device according to claim 1, characterized in that: A stirring shaft (11) is installed on the bottom outer wall of the drive base plate (10).

3. The herbal medicine powder sieving device according to claim 1, characterized in that: Limiting side plates (13) are installed on the side walls of the screening box (1). Side baffles (14) are provided on the side walls of the screening box (1). Fixed side plates (15) are installed on one side wall of the side baffles (14). Guide rods (16) are installed on one side wall of the fixed side plates (15). Limiting plates (17) are slidably engaged on the guide rods (16). Compression springs (18) for pressing the limiting plates (17) are provided on the side walls of the guide rods (16).

4. The herbal medicine powder sieving device according to claim 3, characterized in that: Positioning shafts (19) are respectively installed on one side wall of the limiting side plate (13), and the side baffle (14) is engaged with the positioning shafts (19).

5. The herbal medicine powder sieving device according to claim 1, characterized in that: A buffer pad (8) is provided on the side wall of the guide support shaft (5), and the buffer pad (8) is located between the fixing ring (4) and the screening frame (6).

6. The herbal medicine powder sieving device according to claim 1, characterized in that: The inner wall of the screening box (1) is equipped with guide covers (20) for guiding the powder.

7. The herbal medicine powder sieving device according to claim 1, characterized in that: A drive motor (21) is installed on the top outer wall of the fixed bracket (2). A drive helical gear (22) is connected to the output end of the drive motor (21). A driven helical gear (23) is installed at the top of the drive shaft (3). The drive helical gear (22) and the driven helical gear (23) are meshed together.

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