Dropping pill anti-adhesion rotary cooling and collecting device
By designing a bidirectional dynamic fluid stirring assembly and a gear system, the problems of droplet adhesion and cleaning in the droplet cooling device were solved, thereby improving the forming quality and production efficiency of the droplets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 天长亿帆制药有限公司
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-12
AI Technical Summary
In existing droplet cooling and collection devices, droplets tend to accumulate and stick together during the settling process. The large temperature gradient of the condensate results in low droplet roundness and uneven quality. Furthermore, material residues on the rotating parts and the inner wall of the cooling tank are difficult to remove.
A bidirectional dynamic fluid stirring assembly is adopted, including a third bevel gear and a stirring rod. The third bevel gear is driven by a second motor to rotate the stirring rod and the counter-stirring rod. Combined with the gear system driven by the first motor, the stirring assembly can be quickly installed and removed, optimizing the cooling effect and cleaning the inside of the cooling tank.
It achieves bidirectional dynamic fluid cooling of the pellets, prevents adhesion, improves the roundness and quality uniformity of the pellets, and simplifies the replacement and cleaning process of the stirring components.
Smart Images

Figure CN224230487U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical equipment manufacturing technology, and in particular to a rotary cooling and collecting device for preventing the sticking of droplets. Background Technology
[0002] As an important solid dosage form of traditional Chinese medicine, the cooling process in the preparation of drop pills directly affects the forming quality and production efficiency of the pills. At present, the drop pill cooling and collection devices commonly used in industrial production are mainly based on the principle of liquid phase condensation. They achieve rapid solidification by dripping high-temperature molten medicine into a low-temperature cooling medium, using a vertical dripping-static sedimentation mode, supplemented by mechanical stirring or a slow-flow circulation system to promote the dispersion of the pills.
[0003] However, existing cooling and collection technologies still have many limitations. Static cooling tanks lack fluid disturbance, causing droplets to easily accumulate and stick together during the settling process. Furthermore, the large temperature gradient of the condensate results in low droplet roundness and uneven quality. Although unidirectional rotary coolers can promote heat exchange, the unidirectional fluid movement creates laminar dead zones inside the equipment, making it impossible to completely prevent droplet sticking. In addition, material residue between the rotating parts and the inner wall of the cooling tank is difficult to remove. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a rotary cooling and collecting device for preventing the sticking of droplets, which aims to improve the problem that droplets in existing devices tend to accumulate and stick together during the settling process.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A rotary cooling and collecting device for preventing the adhesion of droplets includes a cooling tank. A first fixing plate is provided on the upper surface of the cooling tank. A second protective sleeve is fixedly connected to the lower surface of the first fixing plate. A second motor is fixedly connected to the upper surface of the second protective sleeve. A third bevel gear is connected to the output end of the second motor. A stirring assembly is meshed with the tooth end of the third bevel gear. A third protective sleeve is fixedly connected to the outside of the stirring assembly. A second stirring rod is fixedly connected to the top of the third bevel gear. A droplet generator is fixedly connected to the upper surface of the first fixing plate.
[0007] Preferably, the stirring assembly includes a first bevel gear, the tooth end of the first bevel gear meshing with the tooth end of a third bevel gear, a first fixed rod rotatably connected inside the first bevel gear, the top end of the first fixed rod rotatably connected inside the third bevel gear, a second bevel gear meshing with the tooth end of the first bevel gear, the bottom end of the second bevel gear rotatably connected inside the second fixed rod, and a first stirring rod fixedly connected outside the second bevel gear.
[0008] Preferably, a first protective sleeve is fixedly connected to the upper surface of the first fixing plate, and a first motor is fixedly connected to the upper surface of the first protective sleeve.
[0009] Preferably, the output end of the first motor is connected to a first gear, and the first gear is rotatably connected inside the first fixed plate.
[0010] Preferably, the teeth of the first gear are meshed with a second rack, and the outside of the second rack is slidably connected to the inside of the first protective sleeve.
[0011] Preferably, a clamping plate is fixedly connected to the outside of the second rack, and a second fixing rod is slidably connected to the inside of the clamping plate.
[0012] Preferably, the second fixing rod is externally fixedly connected to the inside of the first fixing plate, and the tooth end of the first gear is meshed with the first rack.
[0013] Preferably, the outside of the first rack is fixedly connected to the outside of the clamping plate, and the outside of the first rack is slidably connected to the inside of the first protective sleeve.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, the second motor drives the third bevel gear and the second stirring rod to rotate, while simultaneously driving the first bevel gear and the second bevel gear to rotate, further driving the first stirring rod to rotate in the opposite direction, thereby achieving bidirectional dynamic fluid optimization cooling and anti-adhesion, and also cleaning the inside of the cooling tank.
[0016] 2. In this utility model, the first motor drives the first gear to rotate, thereby driving the second rack and the first rack to slide, which in turn drives the clamping plate to slide, further moving the second fixing rod closer to or further away from the outside of the cooling tank, so that the first fixing plate can be quickly installed and removed, achieving the effect of quickly replacing the stirring assembly. Attached Figure Description
[0017] Figure 1 This is a frontal perspective view of the rotary cooling and collecting device for preventing the adhesion of droplets proposed in this utility model.
[0018] Figure 2 This is a partial structural diagram of the first fixed plate of the rotary cooling and collecting device for preventing the adhesion of droplets proposed in this utility model.
[0019] Figure 3 This is a partial structural diagram of the third bevel gear in the rotary cooling and collecting device for preventing the sticking of droplets proposed in this utility model;
[0020] Figure 4This is a partial structural diagram of the first gear of the rotary cooling and collecting device for preventing the sticking of droplets proposed in this utility model.
[0021] Legend:
[0022] 1. Cooling tank; 2. First rack; 3. Clamping plate; 4. First fixing plate; 5. First protective sleeve; 6. Second rack; 7. Dropper; 8. First motor; 9. Stirring assembly; 901. First bevel gear; 902. Second bevel gear; 903. First stirring rod; 904. First fixing rod; 10. Second protective sleeve; 11. Third protective sleeve; 12. Second motor; 13. Second stirring rod; 14. Second fixing rod; 15. Third bevel gear; 16. First gear. Detailed Implementation
[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] Reference Figures 1-3 An embodiment of this utility model provides a rotary cooling and collecting device for preventing the adhesion of droplets, comprising a cooling tank 1, a first fixing plate 4 on the upper surface of the cooling tank 1, a second protective sleeve 10 fixedly connected to the lower surface of the first fixing plate 4, a second motor 12 fixedly connected to the upper surface of the second protective sleeve 10, a third bevel gear 15 connected to the output end of the second motor 12, a stirring assembly 9 meshing with the tooth end of the third bevel gear 15, a third protective sleeve 11 fixedly connected to the outside of the stirring assembly 9, a second stirring rod 13 fixedly connected to the top of the third bevel gear 15, and a droplet generator 7 fixedly connected to the upper surface of the first fixing plate 4;
[0025] Specifically, the bottom of the cooling tank 1 is conical to facilitate the discharge of droplets. The first fixing plate 4 has five slots, and the circular slots facilitate the discharge of droplets from the dropper 7 into the interior of the cooling tank 1. The second protective sleeve 10 consists of four fixing columns and a circular fixing plate to support the second motor 12 and the stirring assembly 9. The outer side of the third bevel gear 15 is provided with a ring for fixing and connecting the second stirring rod 13 for forward stirring. The third protective sleeve 11 is used to protect the internal gear set. The stirring assembly 9 is used for bidirectional stirring, thereby achieving the effect of improving heat exchange efficiency.
[0026] Reference Figure 2 and Figure 3The stirring assembly 9 includes a first bevel gear 901, the tooth end of the first bevel gear 901 is meshed with the tooth end of the third bevel gear 15, a first fixed rod 904 is rotatably connected inside the first bevel gear 901, the top end of the first fixed rod 904 is rotatably connected inside the third bevel gear 15, a second bevel gear 902 is meshed with the tooth end of the first bevel gear 901, the bottom end of the second bevel gear 902 is rotatably connected inside the first fixed rod 904, and a first stirring rod 903 is fixedly connected to the outside of the second bevel gear 902.
[0027] Specifically, the first bevel gear 901 is used to make the second bevel gear 902 and the third bevel gear 15 rotate in opposite directions. The first fixed rod 904 is a "T"-shaped rod composed of two fixed columns, which is used to prevent the first bevel gear 901 and the second bevel gear 902 from deviating from the track. The second bevel gear 902 is provided with a ring on the outside for fixing and connecting the first stirring rod 903 for stirring, thereby achieving the effect of cleaning the inside of the cooling tank 1.
[0028] Reference Figure 1 and Figure 4 A first protective sleeve 5 is fixedly connected to the upper surface of the first fixed plate 4, and a first motor 8 is fixedly connected to the upper surface of the first protective sleeve 5. A first gear 16 is connected to the output end of the first motor 8, and the first gear 16 is rotatably connected inside the first fixed plate 4. A second rack 6 is meshed with the tooth end of the first gear 16, and the outside of the second rack 6 is slidably connected inside the first protective sleeve 5. A clamping plate 3 is fixedly connected to the outside of the second rack 6, and a second fixed rod 14 is slidably connected inside the clamping plate 3. The outside of the second fixed rod 14 is fixedly connected inside the first fixed plate 4, and a first rack 2 is meshed with the tooth end of the first gear 16. The outside of the first rack 2 is fixedly connected to the outside of the clamping plate 3, and the outside of the first rack 2 is slidably connected inside the first protective sleeve 5.
[0029] Specifically, the first protective sleeve 5 is used to protect the first gear 16 and support the first motor 8. It has a sliding groove inside for sliding connection of the second rack 6 and the first rack 2. The first gear 16 has a cylindrical fixing block outside for rotatably connecting the first fixing plate 4. The second rack 6 and the first rack 2 have the same structure, but the second rack 6 is on the upper side of the first rack 2. The second fixing rod 14 consists of four fixing rods fixedly connected inside the sliding groove of the first fixing plate 4 for sliding connection and to assist the sliding of the clamping plate 3, making the opening and closing of the clamping plate 3 more stable, thereby enabling the quick installation and removal of the first fixing plate 4.
[0030] Working principle: When the device is needed, the second motor 12 is turned on to drive the third bevel gear 15 to rotate, which in turn drives the second stirring rod 13 to rotate. At the same time, the first bevel gear 901 rotates outside the first fixed rod 904, which in turn drives the second bevel gear 902 to rotate outside the first fixed rod 904, which further drives the first stirring rod 903 to rotate in the opposite direction. This achieves bidirectional dynamic fluid optimization cooling and anti-adhesion, and also cleans the inside of the cooling tank 1.
[0031] When it is necessary to replace the stirring assembly 9, the first motor 8 is turned on to drive the first gear 16 to rotate, thereby causing the two second racks 6 to slide inside the first protective sleeve 5. At the same time, the two first racks 2 are also driven to slide inside the first protective sleeve 5, which in turn causes the four clamping plates 3 to slide outside the four second fixing rods 14. This further causes the four second fixing rods 14 to move closer to or further away from the outside of the cooling tank 1, thereby allowing the first fixing plate 4 to be installed and removed quickly, achieving the effect of quickly replacing the stirring assembly 9.
[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 rotary cooling and collecting device for preventing the adhesion of droplets, comprising a cooling tank (1), characterized in that: The upper surface of the cooling tank (1) is provided with a first fixing plate (4), the lower surface of the first fixing plate (4) is fixedly connected with a second protective sleeve (10), the upper surface of the second protective sleeve (10) is fixedly connected with a second motor (12), the output end of the second motor (12) is connected with a third bevel gear (15), the tooth end of the third bevel gear (15) is meshed with a stirring assembly (9), the outside of the stirring assembly (9) is fixedly connected with a third protective sleeve (11), the top of the third bevel gear (15) is fixedly connected with a second stirring rod (13), and the upper surface of the first fixing plate (4) is fixedly connected with a pellet dropper (7).
2. The rotary cooling and collecting device for preventing adhesion of droplets according to claim 1, characterized in that: The stirring assembly (9) includes a first bevel gear (901), the tooth end of the first bevel gear (901) is meshed with the tooth end of the third bevel gear (15), the first bevel gear (901) is rotatably connected to the inside of a first fixed rod (904), the top end of the first fixed rod (904) is rotatably connected to the inside of the third bevel gear (15), the tooth end of the first bevel gear (901) is meshed with a second bevel gear (902), the inside of the second bevel gear (902) is rotatably connected to the bottom end of the first fixed rod (904), and the outside of the second bevel gear (902) is fixedly connected to a first stirring rod (903).
3. The rotary cooling and collecting device for preventing adhesion of droplets according to claim 1, characterized in that: A first protective sleeve (5) is fixedly connected to the upper surface of the first fixed plate (4), and a first motor (8) is fixedly connected to the upper surface of the first protective sleeve (5).
4. The rotary cooling and collecting device for preventing the adhesion of droplets according to claim 3, characterized in that: The output end of the first motor (8) is connected to a first gear (16), and the first gear (16) is rotatably connected inside the first fixed plate (4).
5. The rotary cooling and collecting device for preventing the adhesion of droplets according to claim 4, characterized in that: The teeth of the first gear (16) are meshed with the second rack (6), and the outside of the second rack (6) is slidably connected to the inside of the first protective sleeve (5).
6. The rotary cooling and collecting device for preventing adhesion of droplets according to claim 5, characterized in that: The second rack (6) is externally fixedly connected to a clamping plate (3), and the clamping plate (3) is internally slidably connected to a second fixing rod (14).
7. The rotary cooling and collecting device for preventing adhesion of droplets according to claim 6, characterized in that: The second fixing rod (14) is externally fixedly connected to the inside of the first fixing plate (4), and the tooth end of the first gear (16) is meshed with the first rack (2).
8. The rotary cooling and collecting device for preventing the adhesion of droplets according to claim 7, characterized in that: The first rack (2) is fixedly connected to the outside of the clamp (3), and the outside of the first rack (2) is slidably connected to the inside of the first protective sleeve (5).