Coating machine for processing andrographis paniculata dripping pills
By introducing a droplet screening device and a roundness screening mechanism into the coating machine, the diameter and roundness of the droplets are screened, which solves the problem of insufficient screening of droplet diameter and roundness, and improves the quality and uniformity of the droplets.
Patent Information
- Application Number
- CN202423008101.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing coating machines are not designed to fully consider the screening requirements for pellet core diameter and roundness, resulting in uneven pellet quality and reduced appearance.
A coating machine including a droplet screening device and a roundness screening mechanism was designed. The pellet cores are graded and screened by diameter screening and roundness screening mechanism to ensure that the diameter and roundness of the pellet cores meet the standards and enter different outlets.
It improves the dimensional accuracy and quality consistency of the droplets, ensuring the appearance quality and uniformity of the medicinal properties.
Smart Images

Figure CN223930428U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pharmaceutical production technology, specifically relating to a coating machine for processing Andrographis paniculata droplets. Background Technology
[0002] Droplet coating machines play a crucial role in the pharmaceutical industry. Their core function is to perform a thin-film coating process on droplets. This step not only greatly improves the smoothness and aesthetics of the droplet surface but also effectively enhances the stability and moisture resistance of the drug. More importantly, the coating process can cleverly mask any unpleasant odors that may be present in the drug, thereby significantly improving the patient's medication experience.
[0003] The quality of the pellets produced by the pellet coating machine is inextricably linked to the quality of the pellet core. Key parameters such as the diameter, dimensional consistency, and roundness of the pellet core all have a direct and significant impact on the final quality of the pellets. If the pellet core is too large or too small, or if its roundness does not meet the standards, problems with the quality of the pellets will inevitably occur.
[0004] However, many coating machines on the market are not designed to fully consider the screening requirements for pellet core diameter and roundness. This deficiency restricts the appearance quality of the pellets produced by the coating machine to a certain extent, and also makes the medicinal properties of the same batch of pellets uneven. Utility Model Content
[0005] In order to overcome the problems existing in the background art, this utility model provides a coating machine for processing Andrographis paniculata droplets.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a coating machine for processing Andrographis paniculata droplets, comprising: a droplet screening device; a coating machine whose inlet is connected to the droplet core outlet of the droplet screening device; a diameter screening mechanism connected to the outlet of the droplet core machine; and a roundness screening mechanism connected to the diameter screening mechanism; the roundness screening mechanism comprises: a first droplet core inlet; a droplet core batch release mechanism connected to the first droplet core inlet; and a roundness classification chute connected to the droplet core batch release mechanism.
[0007] Preferably, the first pellet inlet is inclined, and the pellet batch release mechanism includes: a pellet channel connected to the first pellet inlet, a rotating roller disposed in the pellet channel, a plurality of pellet grooves arranged in a circumferential array on the side wall of the rotating roller, a servo motor disposed on the side wall of the pellet channel and connected to the rotating roller through a gear reducer; and a roundness classification slide is disposed at the other end of the pellet channel.
[0008] Preferably, the first pellet inlet is a first square tube, the lowest edge line of the bottom surface of the first square tube is higher than or equal to the horizontal diameter surface of the rotating roller, and the lowest edge line is in sliding contact with the surface of the rotating roller.
[0009] Preferably, the roundness classification chute includes: a second pellet inlet connected to the other end of the pellet channel, an inclined chute disposed at the other end of the second pellet inlet, a pellet outlet disposed at the other end of the chute and directly opposite the second pellet inlet, and a defective pellet outlet connected to the other end of the chute and located on both sides of the pellet outlet.
[0010] Preferably, the second pellet inlet is a second square tube, the highest edge of the bottom surface of the second square tube is higher than or lower than the horizontal diameter surface of the rotating roller, and the highest edge is in sliding contact with the surface of the rotating roller.
[0011] Preferably, the diameter screening mechanism includes: a vertically placed square screening tube; a first screening plate inclinedly disposed within the square screening tube; a second screening plate disposed within the square screening tube and parallel to the first screening plate; a medium-diameter pellet outlet disposed on the side wall of the square screening tube and located between the first screening plate and the second screening plate; a large-diameter pellet outlet disposed on the side wall of the square screening tube and located above the medium-diameter pellet outlet; and a small-diameter pellet outlet disposed at the lower end of the square screening tube; the inlet of the square screening tube is connected to the outlet; the medium-diameter pellet outlet is connected to the first pellet inlet; and the aperture of the first screening plate is larger than the aperture of the second screening plate.
[0012] Preferably, a vibration motor is provided on the side wall of the square screening tube, and an eccentric wheel is provided on the output shaft of the vibration motor.
[0013] Preferably, a buffer channel made of fabric is provided between the medium-diameter pellet outlet and the first pellet inlet.
[0014] The beneficial effects of this utility model compared with the prior art are as follows:
[0015] This invention uses a first and second screening plate in a diameter screening mechanism to separate pellet cores into three types: standard diameter pellet cores, large diameter pellet cores (larger than the standard diameter), and small diameter pellet cores (smaller than the standard diameter). Standard diameter pellet cores are then screened for roundness using a roundness screening mechanism. Roundness is determined by releasing standard diameter pellet cores in batches using a rotating roller. The pellets roll naturally down the roundness classification chute. Pellet cores with good roundness enter the pellet core outlet and then enter the coating machine. Pellet cores with slightly lower roundness have their rolling trajectory deviated and enter the defective pellet core outlet, thus completing the screening of pellet core diameter and roundness. Attached Figure Description
[0016] Figure 1 A schematic diagram of the coating machine used for processing Andrographis paniculata droplets;
[0017] Figure 2 This is a schematic diagram of a pellet screening device.
[0018] Figure 3 This is a cross-sectional structural diagram of a pellet screening device.
[0019] Figure 4 This is a schematic diagram of the rotating roller.
[0020] In the diagram: 1. Droplet screening device; 2. Feed inlet; 3. Coating machine; 4. Droplet core outlet; 5. Droplet core machine; 6. Diameter screening mechanism; 7. Roundness screening mechanism; 8. First droplet core inlet; 9. Droplet core batch release mechanism; 10. Roundness classification chute; 11. Droplet core channel; 12. Rotary roller; 13. Droplet core groove; 14. Servo motor; 15. Second droplet core inlet; 16. Slide chute; 17. Defective droplet core outlet; 18. Square screening tube; 19. First screening plate; 20. Second screening plate; 21. Medium diameter droplet core outlet; 22. Vibrating motor; 23. Buffer channel; 24. Small diameter droplet core outlet; 25. Eccentric wheel; 26. Large diameter droplet core outlet. Detailed Implementation
[0021] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below to facilitate understanding by those skilled in the art.
[0022] Please see Figures 1 to 4 This utility model provides a coating machine for processing Andrographis paniculata droplets, comprising: a droplet screening device 1, a coating machine 3 connected to the droplet core outlet 4 of the droplet screening device 1 via a feed inlet 2, a diameter screening mechanism 6 connected to the discharge outlet of the droplet core machine 5, and a roundness screening mechanism 7 connected to the diameter screening mechanism 6; the roundness screening mechanism 7 comprises: a first droplet core inlet 8, a droplet core batch release mechanism 9 connected to the first droplet core inlet 8, and a roundness classification chute 10 connected to the droplet core batch release mechanism 9.
[0023] The first pellet inlet 8 is inclined. The pellet batch release mechanism 9 includes: a pellet channel 11 connected to the first pellet inlet 8; a rotating roller 12 disposed within the pellet channel 11; a plurality of pellet grooves 13 arranged in a circumferential array on the side wall of the roller 12; a servo motor 14 disposed on the side wall of the pellet channel 11 and connected to the roller 12 via a gear reducer; and a roundness classification slide 10 disposed at the other end of the pellet channel 11. The first pellet inlet 8 is a first square tube, the lowest edge line of the bottom surface of the first square tube being higher than or equal to the horizontal diameter surface of the roller 12, and the lowest edge line slidingly contacting the surface of the roller 12. Pellets of the selected diameter are temporarily stored in the first pellet inlet 8 under the action of gravity. The servo motor 14 drives the roller 12 to rotate. When the pellet grooves 13 cross the horizontal diameter surface, the pellets enter the pellet grooves 13, are carried across the pellet channel 11, and are released on the other side of the roller 12.
[0024] The roundness classification chute 10 includes: a second pellet inlet 15 connected to the other end of the pellet channel 11; an inclined groove 16 located at the other end of the second pellet inlet 15; a pellet outlet 4 located at the other end of the groove 16 and directly opposite the second pellet inlet 15; and defective pellet outlets 17 connected to the other end of the groove 16 and located on both sides of the pellet outlet 4. The second pellet inlet 15 is a second square tube, the highest edge line of the bottom surface of the second square tube is higher than or lower than the horizontal diameter surface of the rotating roller 12, and the highest edge line is in sliding contact with the surface of the rotating roller 12. When the pellet core trough 13, containing pellet cores, passes downwards over the flat diameter surface, the pellet cores are released from the trough 13 under the action of gravity. The same batch of pellet cores rolls downwards along the sliding groove 16. The trajectory of the pellet cores with good roundness is relatively straight, allowing them to smoothly enter the pellet core outlet 4 and then the coating machine 3. Naturally, the pellet cores with good diameter and roundness that have been screened before entering the coating machine 3 need to be temporarily stored and accumulated until enough is stored for one production run of the coating machine 3. The trajectory of pellet cores with defects in roundness will deviate to both sides and be collected at the defective pellet core outlet 17. To ensure screening quality, the pellet cores collected from the defective pellet core outlet 17 can be subjected to secondary screening.
[0025] The diameter screening mechanism 6 includes: a vertically placed square screening tube 18; a first screening plate 19 inclinedly disposed within the square screening tube 18; a second screening plate 20 disposed within the square screening tube 18 and parallel to the first screening plate 19; a medium-diameter pellet outlet 21 disposed on the side wall of the square screening tube 18 and located between the first screening plate 19 and the second screening plate 20; a large-diameter pellet outlet 26 disposed on the side wall of the square screening tube 18 and located above the medium-diameter pellet outlet 21; and a small-diameter pellet outlet 24 disposed at the lower end of the square screening tube 18. The inlet of the square screening tube 18 is connected to the outlet; the medium-diameter pellet outlet 21 is connected to the first pellet inlet 8. The aperture of the first screening plate 19 is larger than the aperture of the second screening plate 20. The three diameter pellets screened out can be used for the production of three specifications of pellets.
[0026] A vibration motor 22 is mounted on the side wall of the square screening tube 18, and an eccentric wheel 25 is mounted on the output shaft of the vibration motor 22. A buffer channel 23 made of fabric is provided between the medium-diameter pellet outlet 21 and the first pellet inlet 8. The vibration motor 22 drives the eccentric wheel 25 to vibrate the diameter screening mechanism 6, which can prevent the first screening plate 19 and the second screening plate 20 from clogging and affecting the screening efficiency. The buffer channel 23 reduces the impact of the vibration of the square screening tube 18 on the roundness screening mechanism 7. The diameter screening mechanism 6 and the roundness screening mechanism 7 are supported by independent brackets, which are not shown in the accompanying drawings.
[0027] When using the coating machine for processing Andrographis paniculata droplets according to this utility model:
[0028] After drying, the pellets produced by the pellet core machine 5 enter the square screening tube 18. Under the action of the first screening plate 19 and the second screening plate 20, pellets with excessively large or small diameters are screened out. Standard pellets enter the roundness screening mechanism 7 and are screened for roundness by releasing standard diameter pellets in batches through the rotating roller 12. The pellets roll down naturally from the roundness classification slide 10. Pellets with good roundness enter the pellet core outlet 4 and enter the coating machine 3. Pellets with slightly lower roundness have their rolling trajectory deviated and enter the defective pellet core outlet 17. This completes the screening of pellet diameter and roundness, thereby improving the dimensional accuracy of the pellets produced by the coating machine 3.
[0029] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.
Claims
1. A coating machine for processing Andrographis paniculata droplets, comprising: A pellet screening device (1), a coating machine (3) whose feed inlet (2) is connected to the pellet core outlet (4) of the pellet screening device (1), is characterized in that: it includes a diameter screening mechanism (6) connected to the discharge port of the pellet core machine (5), and a roundness screening mechanism (7) connected to the diameter screening mechanism (6); the roundness screening mechanism (7) includes: a first pellet core inlet (8), a pellet core batch release mechanism (9) connected to the first pellet core inlet (8), and a roundness classification chute (10) connected to the pellet core batch release mechanism (9).
2. The coating machine for processing Andrographis paniculata droplets according to claim 1, characterized in that: The first pellet inlet (8) is inclined, and the pellet batch release mechanism (9) includes: a pellet channel (11) connected to the first pellet inlet (8), a rotating roller (12) disposed in the pellet channel (11), a plurality of pellet grooves (13) arranged in a circumferential array on the side wall of the roller (12), a servo motor (14) disposed on the side wall of the pellet channel (11) and connected to the roller (12) through a gear reducer; and the roundness classification slide (10) is disposed at the other end of the pellet channel (11).
3. The coating machine for processing Andrographis paniculata droplets according to claim 2, characterized in that: The first pellet inlet (8) is a first square tube. The lowest edge line of the bottom surface of the first square tube is higher than or equal to the horizontal diameter surface of the rotating roller (12). The lowest edge line is in sliding contact with the surface of the rotating roller (12).
4. A coating machine for processing Andrographis paniculata droplets according to claim 3, characterized in that: The roundness classification chute (10) includes: a second pellet inlet (15) connected to the other end of the pellet channel (11), an inclined chute (16) located at the other end of the second pellet inlet (15), a pellet outlet (4) located at the other end of the chute (16) and directly opposite the second pellet inlet (15), and a defective pellet outlet (17) connected to the other end of the chute (16) and located on both sides of the pellet outlet (4).
5. A coating machine for processing Andrographis paniculata droplets according to claim 4, characterized in that: The second ball core inlet (15) is a second square tube. The highest edge line of the bottom surface of the second square tube is higher than or lower than the horizontal diameter surface of the rotating roller (12). The highest edge line is in sliding contact with the surface of the rotating roller (12).
6. A coating machine for processing Andrographis paniculata droplets according to claim 2, characterized in that: The diameter screening mechanism (6) includes: a vertically placed square screening tube (18), a first screening plate (19) inclinedly disposed inside the square screening tube (18), a second screening plate (20) disposed inside the square screening tube (18) and parallel to the first screening plate (19), a medium-diameter core outlet (21) disposed on the side wall of the square screening tube (18) and located between the first screening plate (19) and the second screening plate (20), a large-diameter core outlet (26) disposed on the side wall of the square screening tube (18) and located above the medium-diameter core outlet (21), and a small-diameter core outlet (24) disposed at the lower end of the square screening tube (18); the inlet of the square screening tube (18) is connected to the outlet; the medium-diameter core outlet (21) is connected to the first core inlet (8); the aperture of the first screening plate (19) is larger than the aperture of the second screening plate (20).
7. A coating machine for processing Andrographis paniculata droplets according to claim 6, characterized in that: The square screening tube (18) is provided with a vibration motor (22) on its side wall, and an eccentric wheel (25) is provided on the output shaft of the vibration motor (22).
8. A coating machine for processing Andrographis paniculata droplets according to claim 7, characterized in that: A buffer channel (23) made of fabric is provided between the medium-diameter pellet outlet (21) and the first pellet inlet (8).