Auxiliary device for medicine coating for medicine production

By designing an auxiliary device for drug coating, the problem of insufficient uniformity of the spray system in the drug coating device was solved, thus achieving uniformity of the coating layer on the surface of the tablet and consistency of drug production quality.

CN223969294UActive Publication Date: 2026-03-06RUIHONG (SHANDONG) PHARMACEUTICAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The lack of uniformity in the spray system of existing drug coating devices leads to uneven coating thickness or insufficient coating of some drug particles, affecting the quality and consistency of drug production.

Method used

An auxiliary device for drug coating in pharmaceutical production was designed, including a storage box, a dispensing brush, a motor-driven adjustment frame, and a spraying system. Through the cooperation of a cylinder push rod, a motor, and a screw, the tablets are evenly placed and coated on both sides. The coating liquid is evenly sprayed using a water pump and a delivery pipe.

Benefits of technology

This achieves uniform thickness of the coating layer on the tablet surface, improving the coating quality and consistency of drug production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223969294U_ABST
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Abstract

The utility model relates to the technical field of medicine production, in particular to a medicine coating auxiliary device for medicine production. According to the technical scheme, the device comprises a bottom plate, a first vertical plate is arranged on the top face of the bottom plate, an air cylinder push rod is arranged on the rear side of the first vertical plate, the output end of the air cylinder push rod penetrates and extends to the front side of the first vertical plate and is provided with a material storage box, a plurality of medicine guide pipes are arranged on the bottom face of the material storage box, and a medicine stirring brush is arranged on the front side of the material storage box; a second vertical plate is arranged on the top face of the bottom plate, and a first motor is arranged on the right side of the second vertical plate. Tablets can be evenly placed on the top face of the tablet plate by arranging the first vertical plate and the tablet stirring brush, then the upper half portions of the tablets can be evenly sprayed conveniently by arranging the third vertical plate and the conveying pipe, it is guaranteed that the thickness of a coating layer is even, and the double faces of the tablets can be evenly sprayed conveniently by arranging the second vertical plate and the tablet plate. The coating quality is improved.
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Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical production technology, and in particular to an auxiliary device for drug coating in pharmaceutical production. Background Technology

[0002] Pharmaceutical manufacturing refers to the entire process from active pharmaceutical ingredients (APIs) to the final drug formulation, involving multiple stages and complex technical operations. Its aim is to transform raw materials into drugs that meet quality standards and possess efficacy, safety, and stability. Pharmaceutical manufacturing not only requires adherence to strict scientific principles but also must comply with relevant regulations and standards, such as Good Manufacturing Practices (GMP), to ensure drug quality and patient safety. Pharmaceutical manufacturing includes stages such as ingredient preparation, mixing, granulation, drying, tableting, coating, filling, and sealing. Drug coating auxiliary devices in pharmaceutical manufacturing are mainly used to improve the production efficiency, quality, and consistency of drug coating. The drug coating process involves wrapping a thin film around the surface of drug particles or tablets during the pharmaceutical manufacturing process to protect the drug, control drug release, improve the drug's appearance, or reduce adverse reactions. However, existing drug coating technologies use methods such as rotation or spraying to uniformly coat the surface of drug particles or tablets with a coating solution. However, due to insufficient uniformity of the spray system and uneven airflow distribution, the coating layer thickness may be uneven, or some drug particles may be under-coated. Therefore, there is a need to propose an auxiliary device for drug coating in pharmaceutical manufacturing. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the background art by proposing an auxiliary device for drug coating in drug production.

[0004] The technical solution of this utility model: An auxiliary device for drug coating in pharmaceutical production, comprising a base plate, a first upright plate on the top surface of the base plate, a cylinder push rod on the rear side of the first upright plate, the output end of the cylinder push rod extending through to the front side of the first upright plate and having a storage box thereon, a plurality of drug guide tubes on the bottom surface of the storage box, a drug dispensing brush on the front side of the storage box, a second upright plate on the top surface of the base plate, a first motor on the right side of the second upright plate, the output end of the first motor extending through to the left side of the second upright plate and having an adjustment frame thereon, a second motor on the top surface of the adjustment frame, the output end of the second motor extending through to the interior of the adjustment frame and having a bidirectional screw threaded at both ends of the bidirectional screw. The base plate is equipped with a threaded block 1, and a tablet plate is provided on the left side of each threaded block 1. A vertical plate 3 is provided on the top surface of the base plate. A motor 3 is provided on the left side of the vertical plate 3. The output end of the motor 3 extends through to the right side of the vertical plate 3 and is provided with a one-way screw. The outer ring of the left end of the one-way screw is threaded to a threaded block 2. A liquid storage box is provided on the top surface of the threaded block 2. A liquid storage tank is provided on the left side of the vertical plate 3. A water pump is provided on the left side of the vertical plate 3. The water pump's pumping end is fixedly connected to the front side of the liquid storage tank. The water pump's draining end is provided with a delivery pipe. The other end of the delivery pipe extends through to the right side of the vertical plate 3 and is fixedly connected to the left side of the liquid storage box. A tablet box is provided on the top surface of the base plate.

[0005] Preferably, a set of limiting rods is provided on the rear side of the storage box, and the rear end of the limiting rods extends through to the rear side of the first upright plate and is slidably connected to the first upright plate.

[0006] Preferably, the storage box is arranged in an inverted trapezoidal shape.

[0007] Preferably, the bottom surface of the dispensing brush is flush with the top surface of a tablet plate located below it.

[0008] Preferably, an L-shaped annular groove is provided on the left side of the second upright plate, and an L-shaped annular bar is provided on the right side of the adjusting frame, wherein the L-shaped annular bar and the L-shaped annular groove are rotatably connected.

[0009] Preferably, multiple tablet slots are provided on the side of each of the two tablet plates that are close to each other.

[0010] Preferably, a guide rod is provided between the third upright plate and the second upright plate, and a guide block is slidably provided on the outer ring of the left end of the guide rod, and the top surface of the guide block is fixedly connected to the bottom surface of the liquid storage box.

[0011] Compared with the prior art, the present invention has the following beneficial technical effects:

[0012] This invention features a vertical plate with a dispensing brush to facilitate the even placement of tablets on the top surface of the tablet plate. A vertical plate with a conveying pipe facilitates the even spraying of the upper half of the tablets, ensuring uniform coating thickness. A vertical plate with a tablet plate facilitates the even spraying of both sides of the tablets, improving coating quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a structural schematic diagram of the upright plate in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the adjustment frame in this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the vertical plate three in this utility model;

[0017] Figure 5 This is a schematic diagram of a portion of the structure of this utility model.

[0018] Reference numerals in the attached diagram: 1. Base plate; 2. Vertical plate one; 3. Cylinder push rod; 4. Storage box; 5. Drug guide tube; 6. Drug dispensing brush; 7. Vertical plate two; 8. Motor one; 9. Adjusting frame; 10. Motor two; 11. Bidirectional screw; 12. Threaded block one; 13. Tablet plate; 14. Vertical plate three; 15. Motor three; 16. Unidirectional screw; 17. Threaded block two; 18. Liquid storage box; 19. Liquid storage tank; 20. Water pump; 21. Delivery pipe; 22. Tablet box; 23. Limiting rod; 24. L-shaped ring; 25. Guide rod; 26. Guide block. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0020] like Figures 1 to 5As shown, this utility model proposes an auxiliary device for drug coating in pharmaceutical production, including a base plate 1. A vertical plate 2 is mounted on the top surface of the base plate 1, and the top surface of the base plate 1 is fixedly connected to the bottom surface of the vertical plate 2. A cylinder push rod 3 is mounted on the rear side of the vertical plate 2, and the rear side of the vertical plate 2 is fixedly connected to the front end of the cylinder push rod 3. The output end of the cylinder push rod 3 extends through to the front side of the vertical plate 2 and is provided with a storage box 4. The output end of the cylinder push rod 3 is slidably connected to the vertical plate 2. The output end is fixedly connected to the rear side of the storage box 4. The storage box 4 is arranged in an inverted trapezoidal shape to facilitate the placement of tablets. A set of limiting rods 23 is provided on the rear side of the storage box 4. The storage box 4 is fixedly connected to the limiting rods 23. The rear end of the limiting rods 23 extends through to the rear side of the vertical plate 2 and is slidably connected to the vertical plate 2 to facilitate the guidance and limitation of the running trajectory of the storage box 4. Multiple drug guide tubes 5 are provided on the bottom surface of the storage box 4. The bottom surface of the storage box 4 is fixedly connected to the top of the drug guide tubes 5.

[0021] The inner ring of the drug delivery tube 5 is the same size as the tablet. A drug-dispensing brush 6 is provided on the front side of the storage box 4. The front side of the storage box 4 is fixedly connected to the rear side of the drug-dispensing brush 6. The bottom surface of the drug-dispensing brush 6 is flush with the top surface of a tablet plate 13 located below, which facilitates the drug-dispensing brush 6 to straighten the tablet. A second vertical plate 7 is provided on the top surface of the base plate 1. The top surface of the base plate 1 is fixedly connected to the bottom surface of the second vertical plate 7. A first motor 8 is provided on the right side of the second vertical plate 7. The right side of the second vertical plate 7 is fixedly connected to the left side of the first motor 8. The output end of the first motor 8 passes through... An adjustment frame 9 is provided on the left side of the second vertical plate 7. The output end of the first motor 8 is rotatably connected to the second vertical plate 7, and the output end of the first motor 8 is fixedly connected to the adjustment frame 9. An L-shaped annular groove is provided on the left side of the second vertical plate 7, and an L-shaped ring bar 24 is provided on the right side of the adjustment frame 9. The right side of the adjustment frame 9 is fixedly connected to the left side of the L-shaped ring bar 24, and the L-shaped ring bar 24 is rotatably connected to the L-shaped annular groove. The L-shaped ring bar 24 can be guided and limited through the L-shaped annular groove, thereby guiding and limiting the running trajectory of the adjustment frame 9.

[0022] A second motor 10 is mounted on the top surface of the adjusting frame 9. The top surface of the adjusting frame 9 is fixedly connected to the bottom surface of the second motor 10. The output end of the second motor 10 extends through into the interior of the adjusting frame 9 and is equipped with a bidirectional screw 11. The output end of the second motor 10 is fixedly connected to the top end of the bidirectional screw 11. Both ends of the bidirectional screw 11 are threadedly connected to threaded blocks 12. A pill plate 13 is mounted on the left side of each threaded block 12. The threaded block 12 and the pill plate 13 are fixedly connected, and the two pill plates 13 are close to each other. Multiple tablet slots are provided on one side. A vertical plate 3 14 is provided on the top surface of the base plate 1. The top surface of the base plate 1 is fixedly connected to the bottom surface of the vertical plate 3 14. A motor 3 15 is provided on the left side of the vertical plate 3 14. The left side of the vertical plate 3 14 is fixedly connected to the right side of the motor 3 15. The output end of the motor 3 15 extends through to the right side of the vertical plate 3 14 and is provided with a one-way screw 16. The output end of the motor 3 15 is fixedly connected to the left end of the one-way screw 16. A threaded block 2 17 is threadedly connected to the outer ring of the left end of the one-way screw 16.

[0023] A liquid storage box 18 is provided on the top surface of threaded block 2 17. The top surface of threaded block 2 17 is fixedly connected to the bottom surface of liquid storage box 18. Multiple nozzles are provided on the bottom surface of liquid storage box 18. A guide rod 25 is provided between vertical plate 3 14 and vertical plate 2 7. The guide rod 25 is fixedly connected between vertical plate 3 14 and vertical plate 2 7. A guide block 26 is slidably provided on the outer ring of the left end of the guide rod 25. The top surface of the guide block 26 is fixedly connected to the bottom surface of liquid storage box 18. A liquid storage tank 19 is provided on the left side of vertical plate 3 14. The left side of the vertical plate 14 is fixedly connected to the right side of the liquid storage tank 19. A water pump 20 is installed on the left side of the vertical plate 14. The left side of the vertical plate 14 is fixedly connected to the right side of the water pump 20. The water pump 20's pumping end is fixedly connected to the front side of the liquid storage tank 19. A delivery pipe 21 is installed on the water pump 20's draining end. The delivery pipe 21 is a flexible hose. The other end of the delivery pipe 21 extends through to the right side of the vertical plate 14 and is fixedly connected to the left side of the liquid storage box 18. A tablet box 22 is installed on the top surface of the bottom plate 1.

[0024] In this embodiment, when using this device, the two tablet plates 13 are first separated. Then, the cylinder push rod 3 is operated, and the output end of the cylinder push rod 3 pushes the storage box 4 to the front of the tablet plate 13, so that the drug guide tube 5 is aligned with each row of tablet slots on the tablet plate 13, and then the tablets are fed. Then, the output end of the cylinder push rod 3 is retracted, so that the storage box 4 moves to the rear. During the movement, the drug guide tube 5 feeds the tablets, and the tablet brush 6 is used to straighten the tablets so that they are inside the tablet slots. After the tablets are placed, the motor 3 15 is operated. The output end of the motor 3 15 drives the one-way screw 16 to rotate. The rotation of the one-way screw 16 can drive the threaded block 2 17 to move left and right, and at the same time drive the liquid storage box 18 to move. Simultaneously, the water is run. Pump 20 draws out the coating solution through its pumping end and then discharges it through the draining end via the delivery pipe 21 into the storage box 18. Finally, the coating solution is evenly sprayed onto the tablets through the nozzles on the bottom of the storage box 18. When coating the other side is required, motor 2 10 drives the bidirectional screw 11 to rotate through its output end. The rotation of the bidirectional screw 11 drives two threaded blocks 12 to move closer or further apart along the bidirectional screw 11, thereby merging the two tablet plates 13 together. Then, motor 1 8 drives the adjusting frame 9 to rotate through its output end, transferring the tablets into the tablet slot of the other tablet plate 13, and coating is performed using the above steps.

[0025] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.

Claims

1. A device for assisting the coating of pharmaceutical products for the production of medicines, comprising a base plate (1), characterized in that: The top surface of the bottom plate (1) is provided with a vertical plate one (2), the rear side of the vertical plate one (2) is provided with a cylinder push rod (3), the output end of the cylinder push rod (3) extends through to the front side of the vertical plate one (2) and is provided with a storage box (4), the bottom surface of the storage box (4) is provided with a plurality of medicine guide pipes (5), the front side of the storage box (4) is provided with a medicine pushing brush (6), the top surface of the bottom plate (1) is provided with a vertical plate two (7), the right side of the vertical plate two (7) is provided with a motor one (8), the output end of the motor one (8) extends through to the left side of the vertical plate two (7) and is provided with an adjusting frame (9), the top surface of the adjusting frame (9) is provided with a motor two (10), the output end of the motor two (10) extends through to the inside of the adjusting frame (9) and is provided with a bidirectional screw rod (11), the both ends of the bidirectional screw rod (11) are threadedly connected with threaded blocks one (12), the left side of each threaded block one (12) is provided with a tablet plate (13), the top surface of the bottom plate (1) is provided with a vertical plate three (14), the left side of the vertical plate three (14) is provided with a motor three (15), the output end of the motor three (15) extends through to the right side of the vertical plate three (14) and is provided with a unidirectional screw rod (16), the left end outer circle of the unidirectional screw rod (16) is threadedly connected with a threaded block two (17), the top surface of the threaded block two (17) is provided with a liquid storage box (18), the left side of the vertical plate three (14) is provided with a liquid storage tank (19), the left side of the vertical plate three (14) is provided with a water pump (20), the water pumping end of the water pump (20) is fixedly connected in communication with the front side of the liquid storage tank (19), the water discharge end of the water pump (20) is provided with a conveying pipe (21), the other end of the conveying pipe (21) extends through to the right side of the vertical plate three (14) and is fixedly connected in communication with the left side of the liquid storage box (18), and the top surface of the bottom plate (1) is provided with a tablet box (22).

2. The auxiliary device for drug coating for pharmaceutical production according to claim 1, characterized in that, The rear side of the storage box (4) is provided with a group of limiting rods (23), the rear end of the limiting rod (23) extends through to the rear side of the vertical plate one (2) and is in sliding connection with the vertical plate one (2).

3. The auxiliary device for drug coating for pharmaceutical production according to claim 1, characterized in that, The storage box (4) is provided in an inverted ladder type.

4. The auxiliary device for drug coating for pharmaceutical production according to claim 1, characterized in that, The bottom surface of the medicine pushing brush (6) is flush with the top surface of one tablet plate (13) below.

5. The auxiliary device for drug coating for pharmaceutical production according to claim 1, characterized in that, The left side of the vertical plate two (7) is provided with an L-shaped ring groove, the right side of the adjusting frame (9) is provided with an L-shaped ring strip (24), and the L-shaped ring strip (24) is in rotational connection with the L-shaped ring groove.

6. The auxiliary device for drug coating for pharmaceutical production according to claim 1, characterized in that, Two tablet plates (13) are provided with a plurality of tablet grooves on the side close to each other.

7. The auxiliary device for drug coating for pharmaceutical production according to claim 1, characterized in that, A guide rod (25) is arranged between the vertical plate three (14) and the vertical plate two (7), a guide block (26) is slidably arranged on the left end outer circle of the guide rod (25), and the top surface of the guide block (26) is fixedly connected with the bottom surface of the liquid storage box (18).