Film coating device for pharmacy

Abstract

The utility model provides a film coating device for pharmacy, which belongs to the technical field of film coating equipment, and comprises a box body, a roller is rotatably connected in the box body, the box body is provided with a driving device for driving the roller to rotate, two sides of the box body and the roller are respectively provided with a feed port and an inlet / outlet, and an air inlet pipe and a liquid inlet pipe penetrate through the feed port. The liquid inlet pipe is provided with a plurality of liquid spraying heads, and a plurality of water drainage holes are formed in the roller. Supporting rods are arranged on the two sides of the section, located in the roller, of the air inlet pipe, a gas splitter plate is installed on the supporting rods, the bottom of the gas splitter plate is in an arc shape, the bottom end of the gas splitter plate faces the bottom of the roller, and a plurality of jet heads facing the gas splitter plate are arranged between the supporting rods of the air inlet pipe. According to the utility model, through the roller and the liquid spraying head, liquid medicine can be uniformly sprayed on medicine in the roller to form a uniform film coating, and through the arrangement of the air inlet pipe, the gas splitter plate and the air spraying head, the evaporation of moisture on the surface of the medicine is accelerated, so that the drying process of the coating is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of film coating equipment, in particular to a film coating device for pharmaceutical use. Background Art

[0002] In the pharmaceutical industry, the coating of drugs is a crucial process, which directly affects the appearance, stability and durability of drug efficacy of drugs. In traditional coating technologies, manual operations account for a relatively large proportion. Operators manually spray the coating liquid onto the drugs in the pot in batches, and then rotate the pot body to make the drugs tumble, slide, rub and grind in the pot to achieve the purpose of uniform distribution of the coating liquid on the surface of the drugs.

[0003] However, this manual operation method has many limitations and challenges. First of all, it is very difficult to ensure the uniformity of the distribution of the coating liquid on the surface of the drugs. Due to the differences in the skills and experience of operators and the instability of manual spraying, the thickness of the coating layer is often uneven, which affects the quality and efficacy of drugs. Secondly, the production efficiency of manual operation is low and cannot meet the requirements of modern pharmaceutical industry for large-scale and high-efficiency production.

[0004] Therefore, in order to solve the above problems, the utility model proposes a film coating device for pharmaceutical use. Content of the Utility Model

[0005] The purpose of the utility model is to provide a film coating device for pharmaceutical use to solve the problems mentioned in the above technical background.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: A film coating device for pharmaceutical use, including a box body, a drum is rotatably connected inside the box body, the box body is provided with a driving device for driving the drum to rotate, both sides of the box body and the drum are provided with a feed inlet and an inlet and outlet, an air inlet pipe and a liquid inlet pipe penetrate through the feed inlet, a plurality of liquid spraying heads are arranged at the bottom of the liquid inlet pipe, the liquid spraying heads face the bottom of the drum, and a plurality of water drainage holes are arranged on the drum;

[0007] Support rods are arranged on both sides of a section of the air inlet pipe located inside the drum, a gas distribution plate is installed on the support rods, the bottom of the gas distribution plate is arc-shaped, and the bottom end of the gas distribution plate faces the bottom of the drum. A plurality of air jet heads are arranged between the support rods of the air inlet pipe, and the air jet heads face the gas distribution plate.

[0008] As a further solution of the present utility model: ring sliders are arranged on both sides of the drum, a ring chute corresponding to the ring slider is arranged in the inner cavity of the box body, one end of the ring slider is slidably connected to the ring chute, and both the inlet / outlet and the feed inlet are opened at the center of the circle of the ring slider.

[0009] As a further solution of the present utility model: the driving device includes a driven gear arranged on the ring slider far away from the inlet / outlet, a driving motor arranged on one side of the box body, and a driving gear arranged. The driven gear is located at one end of the ring slider far away from the ring chute, the output end of the driving motor penetrates through the box body and is connected to the driving gear, and the driving gear meshes with the driven gear.

[0010] As a further solution of the present utility model: a closing cover is fixedly connected to one side of the feed inlet of the box body, shielding covers are arranged on both sides of the feed inlet of the drum, the shielding covers are rotatably connected to both sides of the inlet / outlet, and the air inlet pipe and the liquid inlet pipe penetrate through the closing cover and the shielding covers, and valves are arranged on the air inlet pipe and the liquid inlet pipe.

[0011] As a further solution of the present utility model: a water storage cavity is arranged below the drum in the box body, a drain pipe is communicated with the bottom of the water storage cavity, a liquid level sensor is arranged above the water storage cavity, and the liquid level sensor is located below the driving gear.

[0012] As a further solution of the present utility model: a box cover adapted to the inlet / outlet on the box body is arranged on the outer side of the box body, and the box cover is arranged on the box body through a hinge.

[0013] In summary, the present utility model has the following beneficial effects:

[0014] Through the rotation of the drum and the liquid spraying head at the bottom of the liquid inlet pipe, the liquid medicine can be evenly sprayed on the medicines in the drum to form a uniform film coating. Through the arrangement of the air inlet pipe, the gas shunt plate and the air jet head, the gas can be evenly blown towards the medicines to accelerate the evaporation of the moisture on the surface of the medicines, thereby accelerating the drying process of the coating. Description of the Drawings

[0015] 1. Figure 1 Is the front view of the present utility model;

[0016] 2. Figure 2 Is the structural schematic diagram of the present utility model;

[0017] 3. Figure 3 Is Figure 2 The enlarged schematic diagram of part A in

[0018] In the figure: 1. Box body; 2. Driving motor; 3. Drain hole; 4. Drum; 5. Valve; 6. Feeding port; 7. Support rod; 8. Gas diverter plate; 9. Liquid inlet pipe; 10. Jet head; 11. Liquid spraying head; 12. Liquid level sensor; 13. Driven gear; 14. Shielding cover; 15. Driving gear; 16. Air inlet pipe; 17. Liquid extraction pipe; 18. Circular chute; 19. Box cover; 20. Hinge; 21. Inlet and outlet; 22. Circular slider. Detailed implementation manners

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] The present invention provides the following technical solutions: As Figures 1-3 shown, a film coating device for pharmaceuticals includes a box body 1. A drum 4 is rotatably connected inside the box body 1. The box body 1 is provided with a driving device for driving the rotation of the drum 4. Feeding ports 6 and inlets and outlets 21 are opened on both sides of the box body 1 and the drum 4. An air inlet pipe 16 and a liquid inlet pipe 9 penetrate through the feeding port 6. A plurality of liquid spraying heads 11 are provided at the bottom of the liquid inlet pipe 9, and the liquid spraying heads 11 face the bottom of the drum 4. A plurality of drain holes 3 are opened on the drum 4. Support rods 7 are provided on both sides of a section of the air inlet pipe 16 located inside the drum 4. A gas diverter plate 8 is installed on the support rods 7. The bottom of the gas diverter plate 8 is arc-shaped, and the bottom end of the gas diverter plate 8 faces the bottom of the drum 4. A plurality of jet heads 10 are provided between the support rods 7 of the air inlet pipe 16, and the jet heads 10 face the gas diverter plate 8. Through the rotation of the drum 4 and the liquid spraying heads 11 at the bottom of the liquid inlet pipe 9, the liquid medicine can be evenly sprayed on the medicine inside the drum 4 to form a uniform film coating. Through the settings of the air inlet pipe 16, the gas diverter plate 8 and the jet heads 10, the gas can be evenly blown towards the medicine to accelerate the evaporation of the moisture on the surface of the medicine, thereby accelerating the drying process of the coating.

[0021] In some embodiments of the present utility model: Circular ring sliders 22 are provided on both sides of the drum 4, and circular ring chutes 18 corresponding to the circular ring sliders 22 are provided in the inner cavity of the box body 1. One end of the circular ring slider 22 is slidably connected to the circular ring chute 18, and the inlet and outlet 21 and the feed inlet 6 are both opened at the center of the circular ring slider 22. By providing the circular ring slider 22 and the circular ring chute 18, the present utility model ensures the stability of the drum 4 during rotation. The inlet and outlet 21 and the feed inlet 6 are both opened at the center of the circular ring slider 22, so that during the rotation of the drum 4, the inlet and outlet 21 and the feed inlet 6 can always remain in the same position, facilitating the entry and exit of drugs and the spraying of the coating liquid. Further, the driving device includes a driven gear 13 provided on the circular ring slider 22 away from the inlet and outlet 21, a driving motor 2 provided on one side of the box body 1, and a driving gear 15. The driven gear 13 is located at one end of the circular ring slider 22 away from the circular ring chute 18. The output end of the driving motor 2 penetrates through the box body 1 and is connected to the driving gear 15, and the driving gear 15 meshes with the driven gear 13. By adopting the combination of the driven gear 13, the driving motor 2 and the driving gear 15 and transmitting power in a meshing manner, the present utility model makes the rotation of the drum 4 more stable and reliable.

[0022] In some embodiments of the present utility model: A closing cover is fixedly connected to one side of the feed inlet 6 of the box body 1. Shielding covers 14 are provided on both sides of the feed inlet 6 of the drum 4. The shielding covers 14 are rotatably connected to both sides of the inlet and outlet 21. The air inlet pipe 16 and the liquid inlet pipe 9 penetrate through the closing cover and the shielding covers 14, and valves 5 are provided on the air inlet pipe 16 and the liquid inlet pipe 9. By providing the closing cover and the shielding covers 14, the present utility model effectively closes the inlet and outlet 21 of the box body 1 and the drum 4, preventing external dust, impurities or other pollutants from entering the inside of the box body 1 and the drum 4. Moreover, the shielding covers 14 are rotatably connected, so that the air inlet pipe 16 and the liquid inlet pipe 9 will not be affected during the rotation of the drum 4.

[0023] In some embodiments of the present utility model: A water storage cavity is provided below the drum 4 in the box body 1. A drain pipe 17 is communicated with the bottom of the water storage cavity. A liquid level sensor 12 is provided above the water storage cavity, and the liquid level sensor 12 is located below the driving gear 15.

[0024] In some embodiments of the present utility model: A box cover 19 adapted to the inlet and outlet 21 on the box body 1 is provided on the outside of the box body 1, and the box cover 19 is provided on the box body 1 through a hinge 20.

[0025] The usage method and working principle of a film coating device for pharmaceutical use of the present utility model are as follows:

[0026] First, open the lid 19 on the outside of the box body 1, put the medicine to be coated into the drum 4 through the inlet and outlet 21, close the lid 19, ensure that the inlet and outlet 21 of the drum 4 are closed, open the valve 5 on the liquid inlet pipe 9, so that the liquid medicine is evenly sprayed on the medicine in the drum 4 through the liquid spraying head 11, open the driving motor 2, and through the meshing of the driving gear 15 and the driven gear 13, make the drum 4 start to rotate, ensuring that the liquid medicine can cover all parts of the medicine. After covering, open the valve 5 on the air inlet pipe 16, so that the gas is blown towards the guiding of the gas diversion plate 8 through the air jet head 10, and the gas is evenly blown towards the surface of the medicine under the guiding of the gas diversion plate 8, accelerating the evaporation of moisture and promoting the drying of the coating. When the liquid medicine on the surface of the medicine is completely dried and a uniform film coating is formed, close the valve 5 on the air inlet pipe 16, turn off the driving motor 2, make the drum 4 stop rotating, open the lid 19, and take out the medicine.

[0027] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment according to needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A film coating device for pharmaceutical use, comprising a box body, characterized in that: A drum is rotatably connected inside the box body. The box body is provided with a driving device for driving the drum to rotate. Feed ports and in-out ports are provided on both sides of the box body and the drum. An air inlet pipe and a liquid inlet pipe penetrate through the feed port. A plurality of liquid spraying nozzles are arranged at the bottom of the liquid inlet pipe, and the liquid spraying nozzles face the bottom of the drum. A plurality of water drainage holes are provided on the drum. Support rods are arranged on both sides of a section of the air inlet pipe located inside the drum. A gas distribution plate is installed on the support rods. The bottom of the gas distribution plate is arc-shaped, and the bottom end of the gas distribution plate faces the bottom of the drum. A plurality of air jet nozzles are arranged between the support rods on the air inlet pipe, and the air jet nozzles face the gas distribution plate.

2. The film coating device for pharmaceutical use according to claim 1, characterized in that: Ring-shaped sliders are arranged on both sides of the drum. A ring-shaped sliding groove corresponding to the ring-shaped slider is arranged in the inner cavity of the box body. One end of the ring-shaped slider is slidably connected to the ring-shaped sliding groove. The in-out port and the feed port are both opened at the center of the ring-shaped slider.

3. A film coating device for pharmaceutical use according to claim 2, characterized in that: The driving device includes a driven gear arranged on the ring-shaped slider far from the in-out port, a driving motor arranged on one side of the box body, and a driving gear. The driven gear is located at one end of the ring-shaped slider far from the ring-shaped sliding groove. The output end of the driving motor penetrates through the box body and is connected to the driving gear. The driving gear meshes with the driven gear.

4. A film coating device for pharmaceutical use according to claim 1, characterized in that: A closing cover is fixedly connected to one side of the feed port of the box body. Shielding covers are arranged on both sides of the feed port of the drum. The shielding covers are rotatably connected to both sides of the in-out port. The air inlet pipe and the liquid inlet pipe penetrate through the closing cover and the shielding covers, and valves are arranged on the air inlet pipe and the liquid inlet pipe.

5. The pharmaceutical film coating device according to claim 3, wherein: A water storage cavity is arranged below the drum in the box body. A drain pipe is communicated with the bottom of the water storage cavity. A liquid level sensor is arranged above the water storage cavity, and the liquid level sensor is located below the driving gear.

6. The film coating device for pharmaceutical use according to claim 4, characterized in that: A box cover adapted to the in-out port on the box body is arranged outside the box body. The box cover is arranged on the box body through a hinge.

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