Medicine circulating drying device
By introducing scraper and impact plate structures into the drug drying device, the problem of uneven hot air caused by drug accumulation is solved, achieving uniform heating and efficient drying of drugs, and reducing labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI ZHONGZHOU PHARMA CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-01
AI Technical Summary
Existing drug drying equipment suffers from uneven hot air distribution when drugs are piled up, resulting in poor drying effect and making it inconvenient to turn the drugs over.
The device employs a scraper and impact plate structure. A motor-driven synchronous belt moves the scraper to uniformly distribute the drug. Combined with the design of a cam and a U-shaped frame, the cam compression and spring rebound drive the impact plate to vibrate the drug, achieving uniform heating and agitation of the drug.
This method achieves uniform heating and efficient drying of the medicine, reduces labor intensity, and improves the drying effect.
Smart Images

Figure CN224188926U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drug processing technology, specifically a drug circulating drying device. Background Technology
[0002] Drug drying is a crucial step in the pharmaceutical process. Drying drugs can prevent chemical degradation, inhibit microbial contamination, and ensure physical stability.
[0003] A search revealed a Chinese patent with publication number CN210004701U, which discloses a high-efficiency circulating drying device for pharmaceuticals. The device includes a drying chamber with a door connected to one side and a straight pipe connected to the top. A dehumidifier and a ceramic filter are sequentially connected to the straight pipe. The dehumidifier is located to one side of the ceramic filter, and two connecting frames are connected inside the ceramic filter. Each connecting frame has a connecting seat on its opposite side. This invention connects the support plate to the collection bag using a frame, hanging ring, and hooks. The collection bag collects water dripping from the object placed on the top support plate, preventing water adhering to the top support plate from dripping onto the object placed on the bottom support plate. This allows the object placed on the bottom support plate to dry normally and easily. Furthermore, it eliminates the need for secondary processing of the object placed on the bottom support plate, reducing the labor intensity for workers.
[0004] In the above-mentioned technology, although the design of the support plate makes it convenient for staff to place the medicine in the drying oven for drying, when there is a lot of medicine, the medicine on the support plate will pile up together. Since the drying oven is not convenient to turn the medicine on the support plate during the drying process, the medicine piled up on the support plate will be heated unevenly, resulting in poor drying effect. Utility Model Content
[0005] The purpose of this invention is to provide a drug circulation drying device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a drug circulating drying device, comprising a drying chamber, an inlet at one end of the top of the drying chamber, a receiving plate fixedly connected to one end of the inner wall of the drying chamber, the receiving plate being higher at the inlet end than the other end, a plurality of ventilation holes on the surface of the receiving plate, a first rotating shaft rotatably connected to the inlet end of the drying chamber, and a second rotating shaft rotatably connected to the end of the drying chamber away from the inlet, both the first and second rotating shafts being located above the receiving plate, the first and second rotating shafts being connected by two first synchronous belts, the first synchronous belts being arranged parallel to the receiving plate, and a plurality of scrapers being fixedly connected to the outer walls of the two first synchronous belts.
[0007] Preferably, a spring is fixedly connected to the bottom of the inner wall of the drying chamber, and a telescopic rod is fixedly connected to the drying chamber inside the spring. A U-shaped frame is fixedly connected to the top of the spring and the telescopic rod. Impact plates are fixedly connected to both ends of the top of the U-shaped frame, and the impact plates are arranged parallel to the receiving plate.
[0008] Preferably, a transmission rod is rotatably connected to one end of the inside of the drying oven, and a cam is fixedly connected to the middle of the transmission rod, with the cam located above the inner wall of the U-shaped frame.
[0009] Preferably, a first synchronous pulley is fixedly connected to both ends of the first rotating shaft, and a second synchronous pulley is fixedly connected to both ends of the second rotating shaft. Both the first and second synchronous pulleys are meshed with a first synchronous belt. One end of the second rotating shaft extends to the outside of the drying chamber and is fixedly connected to a third synchronous pulley. One end of the transmission rod extends to the outside of the drying chamber and is fixedly connected to a fourth synchronous pulley. The third and fourth synchronous pulleys are connected by a second synchronous belt.
[0010] Preferably, a motor is fixedly connected to one end of the outer wall of the drying chamber, the output end of the motor is fixedly connected to the first rotating shaft, a hot air blower is provided at one end of the bottom of the drying chamber, an exhaust port is provided at one end of the top of the drying chamber, a discharge port is provided at one end of the drying chamber located on the receiving plate, the receiving plate is lower at one end of the discharge port than at the other end, and an inspection door is installed at one end of the drying chamber.
[0011] Preferably, a gate is slidably connected to the drying chamber at the discharge port, and an electric push rod is fixedly connected to the drying chamber above the discharge port, with the output end of the electric push rod fixedly connected to the gate.
[0012] Compared with the prior art, the beneficial effects of this utility model are: this utility model drives two first synchronous belts to rotate by a motor, thereby driving the scraper to move. During the movement, the scraper can scrape the medicine at the lower end of the receiving plate to the higher end, thereby avoiding the medicine from accumulating together and affecting the drying effect.
[0013] This invention utilizes a second synchronous belt design to enable the motor to drive the cam to rotate. During the rotation of the cam, its protruding part will squeeze the U-shaped frame, thereby causing the U-shaped frame and the impact plate to move downwards. This, in turn, causes the spring and the telescopic rod to retract. When the protruding part of the cam leaves the U-shaped frame, the spring will quickly rebound, thereby causing the U-shaped frame and the impact plate to move upwards. This allows the impact plate to strike the receiving plate, generating vibration so that the medicine can roll on the receiving plate for subsequent discharge. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 for Figure 1 Another perspective structural diagram;
[0016] Figure 3 This is a schematic diagram of the side cross-sectional structure of the drying oven in this utility model;
[0017] Figure 4 for Figure 3 Another perspective structural diagram;
[0018] Figure 5 This is a schematic diagram of the connection structure between the first synchronous belt and the scraper in this utility model.
[0019] The components represented by each number in the attached diagram are listed below: 1. Drying oven; 2. Feed inlet; 3. Receiving plate; 4. Vent hole; 5. First rotating shaft; 6. Second rotating shaft; 7. First synchronous belt; 8. Scraper; 9. Spring; 10. Telescopic rod; 11. U-shaped frame; 12. Impact plate; 13. Transmission rod; 14. Cam; 15. First synchronous pulley; 16. Second synchronous pulley; 17. Third synchronous pulley; 18. Fourth synchronous pulley; 19. Second synchronous belt; 20. Motor; 21. Hot air blower; 22. Exhaust port; 23. Discharge port; 24. Inspection door; 25. Gate; 26. Electric push rod. Detailed Implementation
[0020] 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.
[0021] This utility model provides a technical solution: such as Figures 1-5 The illustrated drug circulating drying device includes a drying chamber 1, characterized in that: a feed inlet 2 is provided at one end of the top of the drying chamber 1, a receiving plate 3 is fixedly connected to one end of the inner wall of the drying chamber 1, the receiving plate 3 is located at one end of the feed inlet 2 higher than the other end, a plurality of ventilation holes 4 are provided on the surface of the receiving plate 3, a first rotating shaft 5 is rotatably connected to one end of the drying chamber 1 located at the feed inlet 2, and a second rotating shaft 6 is rotatably connected to one end of the drying chamber 1 located away from the feed inlet 2, both the first rotating shaft 5 and the second rotating shaft 6 are located above the receiving plate 3, the first rotating shaft 5 and the second rotating shaft 6 are connected by two first synchronous belts 7, the first synchronous belts 7 are arranged parallel to the receiving plate 3, and a plurality of scrapers 8 are fixedly connected to the outer walls of the two first synchronous belts 7.
[0022] like Figures 3 to 4As shown, a spring 9 is fixedly connected to the bottom of the inner wall of the drying oven 1. A telescopic rod 10 is fixedly connected to the drying oven 1 inside the spring 9. A U-shaped frame 11 is fixedly connected to the top of the spring 9 and the telescopic rod 10. Impact plates 12 are fixedly connected to both ends of the top of the U-shaped frame 11. The impact plates 12 are parallel to the receiving plate 3.
[0023] like Figures 3 to 4 As shown, a transmission rod 13 is rotatably connected to one end of the inside of the drying oven 1, and a cam 14 is fixedly connected to the middle of the transmission rod 13. The cam 14 is located above the inner wall of the U-shaped frame 11.
[0024] like Figure 1 and Figure 5 As shown, the first rotating shaft 5 is fixedly connected to the first synchronous pulley 15 at both ends, and the second rotating shaft 6 is fixedly connected to the second synchronous pulley 16 at both ends. The first synchronous pulley 15 and the second synchronous pulley 16 are both meshed with the first synchronous belt 7. One end of the second rotating shaft 6 extends to the outside of the drying chamber 1 and is fixedly connected to the third synchronous pulley 17. One end of the transmission rod 13 extends to the outside of the drying chamber 1 and is fixedly connected to the fourth synchronous pulley 18. The third synchronous pulley 17 and the fourth synchronous pulley 18 are connected by the second synchronous belt 19.
[0025] like Figures 1 to 2 As shown, a motor 20 is fixedly connected to one end of the outer wall of the drying chamber 1, and the output end of the motor 20 is fixedly connected to the first rotating shaft 5. A hot air blower 21 is provided at one end of the bottom of the drying chamber 1, and an exhaust port 22 is provided at one end of the top of the drying chamber 1. A discharge port 23 is provided at one end of the drying chamber 1 located on the receiving plate 3. The receiving plate 3 is lower at one end of the discharge port 23 than at the other end. An inspection door 24 is installed at one end of the drying chamber 1.
[0026] like Figures 2 to 4 As shown, a gate 25 is slidably connected to the drying chamber 1 at the discharge port 23, and an electric push rod 26 is fixedly connected above the discharge port 23. The output end of the electric push rod 26 is fixedly connected to the gate 25.
[0027] Working principle: When drying the medicine, the medicine is first put into the drying chamber 1 through the feed port 2. The medicine in the drying chamber 1 will fall onto the receiving plate 3. At this time, the hot air blower 21 is turned on to deliver hot air into the drying chamber 1 to dry the medicine. Since the receiving plate 3 is located at one end of the discharge port 23 and lower than the other end, the medicine on the receiving plate 3 will gradually accumulate at one end of the discharge port 23. In order to ensure that the medicine on the receiving plate 3 is heated evenly, the motor 20 drives the first rotating shaft 5, the second rotating shaft 6 and the two first synchronous belts 7 to rotate. During the rotation of the two first synchronous belts 7, the scraper 8 will move. During the movement of the scraper 8, the medicine on the receiving plate 3 can be scraped to even out the accumulated medicine so that the medicine on the receiving plate 3 can be heated evenly.
[0028] In addition, under the transmission action of the second synchronous belt 19, the transmission rod 13 will rotate synchronously with the second rotating shaft 6, thereby driving the cam 14 to rotate. During the rotation of the cam 14, its protruding part will squeeze the U-shaped frame 11, thereby driving the U-shaped frame 11 and the impact plate 12 to move downward, and then driving the spring 9 and the telescopic rod 10 to retract. When the protruding part of the cam 14 leaves the U-shaped frame 11, the spring 9 will quickly rebound, thereby driving the U-shaped frame 11 and the impact plate 12 to move upward, so that the impact plate 12 will impact the receiving plate 3. The vibration generated during the impact can make the medicine on the receiving plate 3 jump, so that the medicine can come into more contact with the hot air.
[0029] When the drug drying is complete, the electric push rod 26 drives the gate 25 to move upward, thereby opening the discharge port 23. At this time, the motor 20 drives the first rotating shaft 5, the first synchronous belt 7, and the second rotating shaft 6 to rotate in opposite directions, thereby causing the scraper 8 to move in the opposite direction, so as to scrape the drug on the receiving plate 3 towards the discharge port 23 for discharge. During this process, the cam 14 will rotate in the opposite direction. When the cam 14 rotates in the opposite direction, the protruding part of the cam 14 will still contact and squeeze the U-shaped frame 11, thereby driving the U-shaped frame 11 and the impact plate 12 to move downward, which in turn drives the spring 9 and the telescopic rod 10 to retract. When the protruding part of the cam 14 leaves the U-shaped frame 11, the spring 9 will quickly rebound, thereby driving the U-shaped frame 11 and the impact plate 12 to move upward, so that the impact plate 12 impacts the receiving plate 3. The vibration generated during the impact can make the drug on the receiving plate 3 move to one end of the discharge port 23 more quickly.
[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0031] 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 drug circulating drying device, comprising a drying chamber (1), characterized in that: The drying chamber (1) has a feed inlet (2) at one end of its top. A receiving plate (3) is fixedly connected to one end of the inner wall of the drying chamber (1). The receiving plate (3) is located at one end of the feed inlet (2) higher than the other end. The surface of the receiving plate (3) is provided with multiple ventilation holes (4). A first rotating shaft (5) is rotatably connected to one end of the drying chamber (1) at the feed inlet (2). A second rotating shaft (6) is rotatably connected to one end of the drying chamber (1) away from the feed inlet (2). The first rotating shaft (5) and the second rotating shaft (6) are both located above the receiving plate (3). The first rotating shaft (5) and the second rotating shaft (6) are connected by two first synchronous belts (7). The first synchronous belts (7) are parallel to the receiving plate (3). Multiple scrapers (8) are fixedly connected to the outer walls of the two first synchronous belts (7).
2. The drug circulating drying device according to claim 1, characterized in that: A spring (9) is fixedly connected to the bottom of the inner wall of the drying box (1). A telescopic rod (10) is fixedly connected inside the spring (9). A U-shaped frame (11) is fixedly connected to the top of the spring (9) and the telescopic rod (10). Impact plates (12) are fixedly connected to both ends of the top of the U-shaped frame (11). The impact plates (12) are parallel to the receiving plate (3).
3. The drug circulating drying device according to claim 2, characterized in that: The drying oven (1) has a transmission rod (13) rotatably connected to one end inside. A cam (14) is fixedly connected to the middle of the transmission rod (13). The cam (14) is located above the inner wall of the U-shaped frame (11).
4. The drug circulating drying device according to claim 3, characterized in that: The first rotating shaft (5) is fixedly connected to the first synchronous pulley (15) at both ends, and the second rotating shaft (6) is fixedly connected to the second synchronous pulley (16) at both ends. The first synchronous pulley (15) and the second synchronous pulley (16) are both meshed with the first synchronous belt (7). One end of the second rotating shaft (6) extends to the outside of the drying box (1) and is fixedly connected to the third synchronous pulley (17). One end of the transmission rod (13) extends to the outside of the drying box (1) and is fixedly connected to the fourth synchronous pulley (18). The third synchronous pulley (17) and the fourth synchronous pulley (18) are connected by the second synchronous belt (19).
5. A drug circulating drying device according to claim 4, characterized in that: A motor (20) is fixedly connected to one end of the outer wall of the drying box (1). The output end of the motor (20) is fixedly connected to the first rotating shaft (5). A hot air blower (21) is provided at one end of the bottom of the drying box (1). An exhaust port (22) is provided at one end of the top of the drying box (1). A discharge port (23) is provided at one end of the receiving plate (3). The receiving plate (3) is lower at one end of the discharge port (23) than at the other end. An inspection door (24) is installed at one end of the drying box (1).
6. A pharmaceutical circulation drying apparatus according to claim 5, wherein: The drying chamber (1) is slidably connected to a gate (25) at the discharge port (23), and an electric push rod (26) is fixedly connected above the discharge port (23). The output end of the electric push rod (26) is fixedly connected to the gate (25).
Citation Information
Patent Citations
Efficient circulating drying device for pharmacy
CN210004701U