Drum-type automatic pill screening machine for pill production line

By introducing a moving structure and protective components into the drum-type automatic pellet screening machine, the problem of the feed pipe being difficult to remove has been solved, enabling convenient cleaning and safe screening of the equipment and improving the working efficiency of the pellet production line.

CN224195211UActive Publication Date: 2026-05-05PUYANG ZHONGYI PHARMA CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PUYANG ZHONGYI PHARMA CO LTD
Filing Date
2025-04-24
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The existing automatic pellet screening machine for pellet production lines makes it inconvenient to remove the feeding box during use, making it difficult to perform deep cleaning inside the equipment.

Method used

A drum-type automatic shot screening machine was designed, which includes a moving structure and protective components. The position of the feed pipe is adjusted by a servo motor driving the lead screw to move the moving block and the mounting plate. The accurate connection and retraction of the feed pipe are controlled by a pressure sensor and a microcontroller. Combined with the protective cylinder and the shot screening structure, the stability and safety of the screen cylinder are ensured.

Benefits of technology

It enables easy removal of the feed pipe, thoroughly cleans the dead corners inside the screen cylinder, improves cleaning convenience and safety, reduces the probability of pills getting stuck, and improves work efficiency.

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Abstract

The utility model relates to the technical field of pill production equipment, and provides a drum-type automatic pill screening machine for a pill production line, which comprises a base, a protective component is fixed at the top end of the base, a pill screening structure is arranged in the protective component, and a moving structure is arranged on one side, far away from the protective component, of the top of the base. Through the arrangement of the moving structure, under the driving action of the servo motor, the use position of the feeding pipe can be controlled through the moving block and the mounting plate, after the feeding pipe is moved away, dead corners in the screen drum can be thoroughly cleaned, and the problem that deep cleaning of the screen drum is inconvenient is solved; according to the drum-type automatic pill screening machine for the pill production line, movement of the feeding pipe can be controlled, it is guaranteed that the feeding pipe and the pill screening structure are accurately connected, it is avoided that the feeding pipe is inconvenient to position during connection, the function that the feeding pipe can be moved away conveniently is achieved, and the use convenience of the drum-type automatic pill screening machine for the pill production line is improved.
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Description

Technical Field

[0001] This utility model relates to the field of pill production equipment technology, and in particular to a drum-type automatic pill screening machine for a pill production line. Background Technology

[0002] With the increasing demand for traditional Chinese medicine health preservation, the output of Chinese medicine pills (such as water-honey pills and concentrated pills) continues to grow, creating an urgent need for efficient screening equipment. Manual screening is labor-intensive and prone to errors, so it is necessary to design a drum-type automatic pill screening machine for pill production lines.

[0003] To address this, patent CN221133025U discloses a drum-type automatic shot sieving machine for a small pellet production line, relating to the field of shot sieving machine technology. The machine includes a housing, with a filter barrel rotatably connected inside. A bearing is rotatably connected to the middle of the outer side of the filter barrel, and a cleaning roller is rotatably connected to the top of the housing via a first connecting rod. A cavity for a water inlet pipe is provided within the rotating shaft and a silicone pressure roller, and multiple sets of holes for these cavities are formed on the silicone pressure roller. This invention allows for better cleaning of the filter barrel by connecting the water inlet pipe to the rotating shaft when cleaning is required. By setting the first motor to rotate in the opposite direction to the second motor, the silicone pressure roller rotates in the opposite direction to the filter barrel, thus improving the internal cleaning of the filter barrel. Finally, the water guiding mechanism connected to the water inlet pipe can be disconnected to allow for air blowing inside the filter barrel. This makes cleaning the entire drum-type automatic shot sieving machine for the small pellet production line more convenient and improves its practicality.

[0004] Although the automatic drum-type shot sieving machine for the small pill production line mentioned above can spray water to clean the screen cylinder during use, it is inconvenient to remove the feeding pipe to perform deep cleaning of the equipment's interior. Therefore, it is necessary to design an automatic drum-type shot sieving machine for the small pill production line. Utility Model Content

[0005] The purpose of this utility model is to provide a drum-type automatic pellet screening machine for pellet production lines, in order to solve the defect of existing drum-type automatic pellet screening machines for pellet production lines where it is inconvenient to remove the feeding box for deep cleaning of the equipment interior during use.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a drum-type automatic pellet screening machine for a pellet production line, including a base;

[0007] A protective component is fixed to the top of the base, and a shot sieve structure is provided inside the protective component.

[0008] A movable structure is provided on the side of the base away from the protective component. The movable structure includes a movable groove on the side of the base away from the protective component. A movable block is provided inside the movable groove. A lead screw is threaded inside the movable block. Guide rods are provided on both sides of the lead screw. A mounting plate is fixed to the top of the movable block.

[0009] A feed pipe is fixed to the top of the mounting plate, a limit plate is fixed to the outer wall of the feed pipe near the protective component, and a pressure sensor is fixed to the bottom of the limit plate.

[0010] Furthermore, the protective assembly includes a protective cylinder, an inner cavity, a first door panel, and a discharge pipe. The protective cylinder is fixed to one side of the top of the base, and the inner cavity is opened inside the protective cylinder. One end of the protective cylinder is hinged to the first door panel, and the bottom end of the protective cylinder is fixed to the discharge pipe.

[0011] Furthermore, the sieve structure includes a mounting base, bearings, a sieve cylinder, a drive motor, a sieve cavity, sieve holes, and a second door plate. The sieve cylinder is located inside the protective cylinder, and a sieve cavity is formed inside the sieve cylinder. Screen holes are evenly formed inside the sieve cylinder outside the sieve cavity. Bearings are fixed on the outer walls of both ends of the sieve cylinder, and mounting bases are fixed on the outer walls of the bearings. The drive motor is fixedly mounted on the outer wall of one end of the protective cylinder.

[0012] Furthermore, the outer wall of the mounting base is fixedly connected to the inner wall of the protective cylinder, and the end of the screen cylinder near the drive motor is rotatably connected to the inner wall of the protective cylinder.

[0013] Furthermore, the output end of the drive motor extends into the interior of the protective cylinder and is fixedly connected to one end of the screen cylinder, and the screen holes are evenly distributed inside the screen cylinder.

[0014] Furthermore, a microcontroller is fixedly installed inside the pressure sensor, and the output terminal of the pressure sensor is electrically connected to the input terminal of the servo motor through the microcontroller.

[0015] Furthermore, one end of the lead screw extends to the outside of the base and is fixedly connected to the output end of the servo motor, while the other end of the lead screw extends to the inside of the base and is rotatably connected to the base.

[0016] Furthermore, the guide rod and the moving block are slidably connected, and both ends of the guide rod are fixedly connected to the inner wall of the base.

[0017] The advantages of the automatic drum-type pellet screening machine for pellet production line provided by this utility model are as follows:

[0018] With a movable structure, the position of the feed pipe can be controlled by the moving block and mounting plate under the drive of the servo motor. After the feed pipe is removed, the dead corners inside the screen cylinder can be thoroughly cleaned, solving the problem of inconvenience in deep cleaning the screen cylinder. The pressure sensor, through the microcontroller, can control the movement of the feed pipe to ensure accurate connection between the feed pipe and the shot sieve structure, avoiding inconvenience in positioning the feed pipe during connection. This device has the function of easily removing the feed pipe, improving the convenience of using the drum-type automatic shot sieve machine for the shot production line.

[0019] By incorporating protective components and a sieve structure, the protective cylinder prevents operators from contacting the rotating sieve cylinder or transmission parts, ensuring safety during sieving. The sieve apertures allow for multi-stage sieving of the pellets. Bearing support and connections ensure the stability of the sieve cylinder during rotation, reducing the probability of pellets getting stuck. The second door panel can be opened for easy removal of pellets from the sieve cylinder and quick cleaning of the sieve apertures. This device facilitates both pellet sieving and sieve aperture cleaning, improving the working efficiency of the automatic drum-type sieve machine used in the pellet production line. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0022] Figure 3 This is a three-dimensional structural schematic diagram of the main cross-section of this utility model;

[0023] Figure 4 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0024] Figure 5 This is a top-view cross-sectional three-dimensional structural diagram of the present invention.

[0025] The following are the annotations in the diagram: 1. Base; 2. Protective component; 21. Protective cylinder; 22. Inner cavity; 23. First door panel; 24. Discharge pipe; 3. Shot sieve structure; 31. Mounting seat; 32. Bearing; 33. Sieve cylinder; 34. Drive motor; 35. Sieve cavity; 36. Sieve hole; 37. Second door panel; 4. Feed pipe; 5. Limiting plate; 6. Pressure sensor; 7. Moving structure; 71. Moving groove; 72. Servo motor; 73. Lead screw; 74. Moving block; 75. Mounting plate; 76. Guide rod. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-5 The present invention provides a drum-type automatic pellet screening machine for a pellet production line, including a base 1.

[0028] Reference Figures 1-5 A protective assembly 2 is fixed to the top of the base 1. The protective assembly 2 includes a protective cylinder 21, an inner cavity 22, a first door plate 23, and a discharge pipe 24. The protective cylinder 21 is fixed to one side of the top of the base 1. The inner cavity 22 is opened inside the protective cylinder 21. The first door plate 23 is hinged to one end of the protective cylinder 21. The discharge pipe 24 is fixed to the bottom end of the protective cylinder 21. A shot sieve structure 3 is set inside the protective assembly 2. The shot sieve structure 3 includes a mounting base 31, a bearing 32, a sieve cylinder 33, a drive motor 34, a sieve cavity 35, sieve holes 36, and a second door plate 37. The sieve cylinder 33 is set inside the protective cylinder 21. The screen 3 has a sieve cavity 35 inside. The screen cylinder 33 outside the sieve cavity 35 has sieve holes 36 evenly distributed inside. Bearings 32 are fixed on the outer walls of both ends of the screen cylinder 33. Mounting seats 31 are fixed on the outer walls of the bearings 32. The drive motor 34 is fixedly installed on the outer wall of one end of the protective cylinder 21. The outer wall of the mounting seat 31 is fixedly connected to the inner wall of the protective cylinder 21. The end of the screen cylinder 33 near the drive motor 34 is rotatably connected to the inner wall of the protective cylinder 21. The output end of the drive motor 34 extends into the interior of the protective cylinder 21 and is fixedly connected to one end of the screen cylinder 33. The sieve holes 36 are evenly distributed inside the screen cylinder 33.

[0029] With an external power supply, the pills enter the sieve chamber 35 through the feed pipe 4. The drive motor 34 is started, which drives the sieve cylinder 33 to rotate. When the sieve cylinder 33 rotates, qualified pills will be discharged from the sieve chamber 35 through the sieve holes 36 and enter 12. After screening, they are discharged outward through the discharge pipe 24. Unqualified pills can be removed by moving the feed pipe 4 through the moving structure 7 and opening the second door plate 37. The mounting base 31 and bearing 32 are used to support the sieve cylinder 33 and reduce friction loss.

[0030] Reference Figures 1-5A movable structure 7 is provided on the top side of the base 1 away from the protective component 2. The movable structure 7 includes a movable groove 71 opened on the top side of the base 1 away from the protective component 2. A movable block 74 is provided inside the movable groove 71. A lead screw 73 is threadedly connected inside the movable block 74. Guide rods 76 are provided on both sides of the lead screw 73. A mounting plate 75 is fixed to the top of the movable block 74. One end of the lead screw 73 extends to the outside of the base 1 and is fixedly connected to the output end of the servo motor 72. The other end of the lead screw 73 extends to the inside of the base 1 and is rotatably connected to the base 1. A feed pipe 4 is fixed to the top of the mounting plate 75. A limit plate 5 is fixed to the outer wall of the feed pipe 4 near the protective component 2. A pressure sensor 6 is fixed to the bottom of the limit plate 5. A microcontroller is fixedly installed inside the pressure sensor 6. The output end of the pressure sensor 6 is electrically connected to the input end of the servo motor 72 through the microcontroller.

[0031] When an external power supply is connected, the servo motor 72 is started. The servo motor 72 drives the lead screw 73 to rotate. The lead screw 73 drives the moving block 74 to slide horizontally along the guide rod 76. The feed pipe 4 is fixed on the top of the mounting plate 75 and can move synchronously with the moving block 74 to change the position of the pills. The pressure sensor 6 can monitor the pressure on the limit plate 5. When the limit plate 5 contacts the first door plate 23, the pressure sensor 6 will feed back the pressure signal to the microcontroller to dynamically adjust the position of the feed pipe 4.

[0032] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A drum-type automatic pellet screening machine for a pellet production line, comprising a base (1); Its features are: The top of the base (1) is fixed with a protective component (2), and the inside of the protective component (2) is provided with a shot sieve structure (3); A movable structure (7) is provided on the side of the top of the base (1) away from the protective component (2). The movable structure (7) includes a movable groove (71) opened on the side of the top of the base (1) away from the protective component (2). A movable block (74) is provided inside the movable groove (71). A lead screw (73) is threaded inside the movable block (74). Guide rods (76) are provided on both sides of the lead screw (73). An mounting plate (75) is fixed to the top of the movable block (74). The top of the mounting plate (75) is fixed with a feed pipe (4), and a limit plate (5) is fixed on the outer wall of the feed pipe (4) near the protective component (2). A pressure sensor (6) is fixed on the bottom of the limit plate (5).

2. The automatic drum-type pellet screening machine for a pellet production line according to claim 1, characterized in that: The protective component (2) includes a protective cylinder (21), an inner cavity (22), a first door panel (23), and a discharge pipe (24). The protective cylinder (21) is fixed to one side of the top of the base (1). The inner cavity (22) is opened inside the protective cylinder (21). The first door panel (23) is hinged to one end of the protective cylinder (21). The discharge pipe (24) is fixed to the bottom end of the protective cylinder (21).

3. The automatic drum-type pellet screening machine for a pellet production line according to claim 1, characterized in that: The sieve structure (3) includes a mounting base (31), a bearing (32), a sieve cylinder (33), a drive motor (34), a sieve cavity (35), sieve holes (36), and a second door plate (37). The sieve cylinder (33) is located inside the protective cylinder (21). The sieve cylinder (33) has a sieve cavity (35) inside. The sieve cylinder (33) outside the sieve cavity (35) has sieve holes (36) evenly distributed inside the sieve cylinder (33). The bearings (32) are fixed on the outer walls at both ends of the sieve cylinder (33). The mounting base (31) is fixed on the outer wall of the bearings (32). The drive motor (34) is fixedly installed on the outer wall at one end of the protective cylinder (21).

4. The automatic drum-type pellet screening machine for a pellet production line according to claim 3, characterized in that: The outer wall of the mounting base (31) is fixedly connected to the inner wall of the protective cylinder (21), and the end of the screen cylinder (33) near the drive motor (34) is rotatably connected to the inner wall of the protective cylinder (21).

5. The automatic drum-type pellet screening machine for a pellet production line according to claim 3, characterized in that: The output end of the drive motor (34) extends into the interior of the protective cylinder (21) and is fixedly connected to one end of the sieve cylinder (33). The sieve holes (36) are evenly distributed inside the sieve cylinder (33).

6. The automatic drum-type pellet screening machine for a pellet production line according to claim 1, characterized in that: The pressure sensor (6) has a microcontroller fixedly installed inside it, and the output end of the pressure sensor (6) is electrically connected to the input end of the servo motor (72) through the microcontroller.

7. The automatic drum-type pellet screening machine for a pellet production line according to claim 1, characterized in that: One end of the lead screw (73) extends to the outside of the base (1) and is fixedly connected to the output end of the servo motor (72), and the other end of the lead screw (73) extends to the inside of the base (1) and is rotatably connected to the base (1).

8. The automatic drum-type pellet screening machine for a pellet production line according to claim 1, characterized in that: The guide rod (76) and the moving block (74) are slidably connected, and both ends of the guide rod (76) are fixedly connected to the inner wall of the base (1).

Citation Information

Patent Citations

  • Drum-type automatic pill screening machine for pill production line

    CN221133025U