A device for coating pharmaceutical granules with sugar

Abstract

The present invention belongs to the field of medical equipment technology and relates to a device for coating pharmaceutical particles with sugar, which solves the problems of low sugar coating efficiency in the prior art. The sugar coating device includes a bracket, an outer cylinder is provided on the bracket, the outer cylinder has an inner cavity 1, an inner cylinder is rotatably provided in the inner cavity 1, and the outer cylinder is provided with a rotation drive source capable of driving the inner cylinder to rotate; the inner cylinder has an inner cavity 2, the side wall of the inner cylinder is provided with a plurality of openings connected to the inner cavity 2 and a baffle capable of sealing the opening, and the inner cylinder is also provided with a controller capable of controlling the opening and closing of the baffle; the outer cylinder has a sugar coating feed port and a drug discharge port connected to the inner cavity 1, as well as corresponding feed valves and drug discharge valves; the inner cylinder has a drug feed port connected to the inner cavity 2 and a corresponding drug feed valve. The sugar coating device can achieve sugar coating in batches and has high production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment and relates to a device for sugar-coating medical particles. Background Art

[0002] Since medicines usually have a bitter taste, people find it difficult to swallow them. In addition, in order to prevent oxidation on the surface of the medicine, a layer of substance needs to be applied on the surface of the medicine. Manual application is not only inefficient but also labor-intensive.

[0003] Patent CN103126889A discloses a tablet sugar coating machine capable of applying a uniform sugar coating, comprising a hollow base, a sugar coating pot provided on the base, a motor provided inside the base, the motor being connected to the sugar coating pot, a liquid feeding cylinder provided on the base, one end of the liquid feeding cylinder being connected to the interior of the base, and the other end being provided inside the sugar coating pot, and a sugar coating brush provided inside the sugar coating pot.

[0004] Although the above-mentioned tablet sugar coating machine can coat the tablets with a sugar coating brush, the efficiency is low. Summary of the Invention

[0005] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a device for sugar-coating pharmaceutical particles. The technical problem to be solved by the present invention is: how to improve production efficiency.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A device for coating pharmaceutical particles with sugar, characterized in that the coating device includes a bracket, an outer cylinder is provided on the bracket, the outer cylinder is provided with an inner cavity 1, an inner cylinder is rotatably provided in the inner cavity 1, and the outer cylinder is provided with a rotating drive source capable of driving the inner cylinder to rotate; the inner cylinder is provided with an inner cavity 2, the side wall of the inner cylinder is provided with a plurality of openings connected to the inner cavity 2 and a baffle capable of sealing the opening, and the inner cylinder is also provided with a controller capable of controlling the opening and closing of the baffle; the outer cylinder is provided with a sugar coating feed port and a drug discharge port connected to the inner cavity 1 and a corresponding feed valve and drug discharge valve; the inner cylinder is provided with a drug feed port connected to the inner cavity 2 and a corresponding drug feed valve.

[0008] Its working principle is as follows: during use, the drug particles and the drug to be mixed are first fed into the inner chamber 2 of the inner cylinder through the drug inlet valve. The inner cylinder is then rotated by a rotary drive source to fully mix the drug particles and the drug. The controller then opens the baffle, allowing the drug in the inner chamber 2 to enter the inner chamber 1 of the outer cylinder through the opening. At the same time, the sugar coating enters the inner chamber 1 of the outer cylinder through the feed valve. As the inner cylinder continues to rotate, the baffle acts as a stirring blade, evenly mixing the drug and the sugar coating liquid, thereby achieving sugar coating of the drug. Finally, the sugar-coated drug is discharged through the drug outlet. Compared with existing technologies, this sugar coating device can achieve sugar coating in batches and has high production efficiency.

[0009] In the aforementioned pharmaceutical granule sugar-coating device, a mounting bracket is provided at the bottom of the inner chamber of the outer cylinder. The outer end of the inner cylinder is rotatably mounted on the mounting bracket. The inner end of the inner cylinder is connected to a mounting shaft, which passes through the outer cylinder and is rotatably mounted on the outer cylinder. The rotational drive source includes a motor connected to the mounting shaft. Rotation of the motor drives the inner cylinder to rotate via the mounting shaft.

[0010] In the aforementioned device for sugar-coating pharmaceutical granules, a first bearing is fixed to the mounting frame, the outer end of the inner barrel passes through the inner ring of the first bearing and is fixed thereto, and the drug feed port is located at the outer end of the inner barrel. To feed the drug, the drug feed valve at the outer end of the inner barrel is opened to transfer the drug granules into the second inner chamber of the inner barrel, and then the drug feed valve is closed.

[0011] In the aforementioned pharmaceutical granule sugar-coating device, the inner end of the baffle is rotatably mounted on the inner cylinder via a rotating shaft. A gear is fixed to the rotating shaft, and a ring gear is rotatably mounted on the inner cylinder, meshing with the outer ring of the gear. The controller is capable of adjusting the rotation angle of the ring gear. Adjusting the rotation angle of the ring gear via the controller drives the gear to rotate, ultimately driving the baffle to swing via the rotating shaft, thereby opening and closing the opening.

[0012] In the aforementioned device for coating pharmaceutical granules with sugar, a second bearing is coaxially disposed on the inner cylinder, the inner ring of the second bearing being fixed to the inner cylinder, the outer end of the ring gear being connected to the outer ring of the second bearing, the outer end of the ring gear being provided with a plurality of first limiting holes along its circumference, a limiting frame being provided on the side wall of the inner cylinder, the limiting frame being provided with a second limiting hole that can be aligned with the first limiting hole, and the controller including a limiting pin that can be simultaneously inserted into the first and second limiting holes. When the baffle needs to be opened or closed, the baffle can be rotated to a predetermined position, and then the limiting pin is inserted into the first and second limiting holes to achieve fixation.

[0013] In the aforementioned device for coating pharmaceutical granules with sugar, the sugar coating feed port is located at the inner end of the outer barrel, the feed valve comprises a hatch provided on the outer barrel, and an annular retaining ring is provided at the sugar coating feed port. During feeding, the hatch can be opened to transfer the sugar coating into the outer barrel. The retaining ring prevents leakage of the sugar coating.

[0014] In the above-mentioned pharmaceutical granule sugar-coating device, the drug discharge port is opened at the lower end of the outer cylinder, and the drug discharge valve is a solenoid valve. The sugar-coated drug can be discharged from the drug discharge port under the action of gravity.

[0015] In the above-mentioned pharmaceutical granule sugar-coating device, the inner wall of the upper half of the outer cylinder is provided with a plurality of air heaters along its axial direction. The air heaters are designed to dry the sugar-coated medicine, thereby ensuring the uniformity of the medicine and production efficiency.

[0016] In the aforementioned pharmaceutical granule sugar-coating device, the baffle comprises a main body connected to the rotating shaft and a plate-shaped plate. The main body is provided with a threaded hole, and the plate is provided with a stud that engages with the threaded hole. The plate is connected to the main body via the stud, and the angle of the plate is adjustable. When the baffle is in the open position, adjusting the angle of the plate allows the baffle to function not only as a stirrer but also as a feeder, operating in the same manner as a conveying auger, thereby delivering the drug to the drug outlet.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This sugar coating device can realize sugar coating in batches with high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the sugar coating device.

[0020] Figure 2 It is a structural diagram of the inner cylinder.

[0021] Figure 3 This is the principle of the sugar coating device Figure 1 .

[0022] Figure 4 This is the principle of the sugar coating device Figure 2 .

[0023] Figure 5 This is the principle of the sugar coating device Figure 3 .

[0024] Figure 6 This is a partial structural diagram of the sugar coating device

[0025] In the figure, 1. bracket; 2. outer cylinder; 3. inner cavity 1; 4. inner cylinder; 5. stud; 6. inner cavity 2; 7. baffle; 8. controller; 9. sugar coating feed port; 10. drug discharge port; 11. drug feed port; 12. mounting frame; 13. bearing 1; 14. gear; 15. gear ring; 16. bearing 2; 17. main body; 18. plate; 19. limit frame. DETAILED DESCRIPTION

[0026] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0027] like Figures 1 to 6 As shown, the sugar coating device includes a bracket 1, on which an outer cylinder 2 is provided, and an inner cavity 3 is provided in the outer cylinder 2. An inner cylinder 4 is rotatably provided in the inner cavity 3, and the outer cylinder 2 is provided with a rotation driving source capable of driving the inner cylinder 4 to rotate; the inner cylinder 4 is provided with an inner cavity 2 6, and the side wall of the inner cylinder 4 is provided with a plurality of openings connected to the inner cavity 2 6 and a baffle 7 capable of sealing the opening, and the inner cylinder 4 is also provided with a controller 8 capable of controlling the opening and closing of the baffle 7; the outer cylinder 2 is provided with a sugar coating feed port 9 connected to the inner cavity 3, a drug discharge port and corresponding feed valves and drug discharge valves; the inner cylinder 4 is provided with a drug feed port 11 connected to the inner cavity 2 6 and a corresponding drug feed valve.

[0028] Specifically, a mounting bracket 12 is provided at the bottom of the inner cavity 3 of the outer cylinder 2, and the outer end of the inner cylinder 4 is rotatably provided on the mounting bracket 12. The inner end of the inner cylinder 4 is connected to a mounting shaft, which passes through the outer cylinder 2 and is rotatably provided on the outer cylinder 2. The rotational driving source includes a motor connected to the mounting shaft.

[0029] Preferably, a bearing 13 is fixed to the mounting frame 12. The outer end of the inner cylinder 4 passes through the inner ring of the bearing 13 and is fixed thereto. The drug feed port 11 is provided at the outer end of the inner cylinder 4. The inner end of the baffle 7 is rotatably mounted on the inner cylinder 4 via a rotating shaft. A gear 14 is fixed to the rotating shaft. A ring gear 15 is rotatably mounted on the inner cylinder 4 and meshes with the outer ring of the gear 14. The controller 8 is capable of adjusting the rotation angle of the ring gear 15.

[0030] Specifically, a bearing 2 16 is coaxially arranged on the inner cylinder 4, the inner ring of the bearing 2 16 is fixed on the inner cylinder 4, the outer end of the gear ring 15 is connected to the outer ring of the bearing 2 16, and the outer end of the gear ring 15 is provided with a plurality of limit holes 1 along its own circumference. A limit frame 19 is provided on the side wall of the inner cylinder 4, and a limit hole 2 is provided on the limit frame 19, which can be aligned with the limit hole 1. The controller 8 includes a limit pin that can be simultaneously inserted into the limit hole 1 and the limit hole 2.

[0031] The sugar coating feed port 9 is located at the inner end of the outer barrel 2. The feed valve comprises a hatch mounted on the outer barrel 2 and is equipped with an annular retaining ring. The drug discharge port is located at the lower end of the outer barrel 2 and is a solenoid valve. Several heaters are installed along the axial direction of the inner wall of the upper half of the outer barrel 2.

[0032] The baffle 7 includes a main body 17 connected to the rotating shaft and a plate body 18 in a plate shape. The main body 17 is provided with a threaded hole, and the plate body 18 is provided with a stud 5 that matches the threaded hole.

[0033] The working principle of the present invention is as follows: when in use, the drug particles and the drug to be stirred are first input into the inner cavity 2 of the inner cylinder through the drug inlet valve, and the inner cylinder is driven to rotate by the rotary drive source to fully stir the drug particles and the drug; then the baffle is opened by the controller to allow the drug in the inner cavity 2 to enter the inner cavity 1 of the outer cylinder through the opening, and at the same time, the sugar coating enters the inner cavity 1 of the outer cylinder through the feed valve, and the inner cylinder continues to rotate. The baffle can act as a stirring blade to evenly stir the drug and the sugar coating liquid, thereby achieving sugar coating of the drug. Finally, the sugar-coated drug is output through the drug discharge port to achieve discharge.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A device for coating pharmaceutical granules with sugar, characterized in that: The sugar coating device comprises a bracket (1), an outer cylinder (2) is provided on the bracket (1), an inner cavity (3) is provided on the outer cylinder (2), an inner cylinder (4) is rotatably provided in the inner cavity (3), and a rotation driving source for driving the inner cylinder (4) to rotate is provided on the outer cylinder (2); an inner cavity (6) is provided on the inner cylinder (4), a side wall of the inner cylinder (4) is provided with a plurality of openings connected to the inner cavity (6) and a baffle (7) for sealing the opening, and a controller (8) for controlling the opening and closing of the baffle (7) is also provided on the inner cylinder (4); a sugar coating feed port (9) connected to the inner cavity (3), a drug discharge port and corresponding feed valves and drug discharge valves are provided on the outer cylinder (2); a drug feed port (11) connected to the inner cavity (6) and corresponding drug feed valves are provided on the inner cylinder (4); A mounting frame (12) is provided at the bottom of the inner cavity (3) of the outer cylinder (2), the outer end of the inner cylinder (4) is rotatably mounted on the mounting frame (12), the inner end of the inner cylinder (4) is connected to a mounting shaft, the mounting shaft passes through the outer cylinder (2) and is rotatably mounted on the outer cylinder (2), and the rotation drive source includes a motor connected to the mounting shaft; A bearing 1 (13) is fixed on the mounting frame (12), the outer end of the inner cylinder (4) passes through the inner ring of the bearing 1 (13) and is fixed to the inner ring, and the drug feed port (11) is opened at the outer end of the inner cylinder (4); The inner end of the baffle (7) is rotatably mounted on the inner cylinder (4) via a rotating shaft, a gear (14) is fixed to the rotating shaft, a ring gear (15) is rotatably mounted on the inner cylinder (4) and meshes with the outer ring of the gear (14), and the controller (8) adjusts the rotation angle of the ring gear (15).

2. The device for coating pharmaceutical particles with sugar according to claim 1, characterized in that: A second bearing (16) is coaxially arranged on the inner cylinder (4), the inner ring of the second bearing (16) is fixed on the inner cylinder (4), the outer end of the gear ring (15) is connected to the outer ring of the second bearing (16), the outer end of the gear ring (15) is provided with a plurality of limiting holes (1) along its own circumference, a limiting frame (19) is provided on the side wall of the inner cylinder (4), and a limiting hole (2) is provided on the limiting frame (19) and is aligned with the limiting hole (1), and the controller (8) includes a limiting pin that is simultaneously inserted into the limiting hole (1) and the limiting hole (2).

3. The device for coating pharmaceutical particles with sugar according to claim 2, characterized in that: The sugar coating feed port (9) is opened at the inner end of the outer cylinder (2), the feed valve includes a hatch arranged on the outer cylinder (2), and an annular limiting ring is arranged at the sugar coating feed port (9).

4. The device for sugar-coating pharmaceutical particles according to claim 3, characterized in that: The medicine discharge port is opened at the lower end of the outer cylinder (2), and the medicine discharge valve is a solenoid valve.

5. The device for sugar-coating pharmaceutical particles according to claim 4, characterized in that: The inner wall of the upper half of the outer cylinder (2) is provided with a plurality of heaters along its own axial direction.

6. The device for sugar-coating pharmaceutical particles according to claim 5, characterized in that: The baffle (7) comprises a main body (17) connected to the rotating shaft and a plate-shaped plate (18), wherein a threaded hole is provided on the main body (17), and a stud (5) matched with the threaded hole is provided on the plate (18).

Images