Medicinal automatic pulverizer with multi-stage pulverizing structure

By designing a multi-stage crushing structure and screening components, the problems of uneven crushing and screening of medicinal materials are solved, achieving efficient and uniform crushing and rapid screening of medicinal materials, thus improving the overall performance of the crusher.

CN223861979UActive Publication Date: 2026-02-03GUANG DONG SHENG JIU LIAN YAO YE YOU XIAN GONG SI
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Patent Information

Application Number
CN202423168763.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2026-02-03
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

Existing multi-stage automatic pharmaceutical grinders suffer from insufficient blade contact during the grinding process, resulting in unsatisfactory grinding effects and unevenly sized medicinal materials, making effective screening difficult.

Method used

It adopts a multi-stage crushing structure, including components such as crankshaft, rotating shaft, connecting shaft, guide rail, and sieve plate. The motor drives the worm gear to drive the worm wheel and bevel gear to mesh, realizing multi-stage crushing and screening. Combined with the vibrator to accelerate the material discharge of the strainer plate, it ensures that the medicinal materials are evenly distributed and fully crushed.

Benefits of technology

This technology enables multi-stage pulverization of medicinal materials, improving pulverization efficiency and screening efficiency, resulting in uniform material size and enhancing the quality and processing speed after pulverization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automatic medicinal pulverizer with a multi-stage pulverizing structure, and relates to the technical field of medicinal material processing equipment. A crankshaft, an installation frame, a material leaking plate, a rotating shaft and a guide rail are installed in the machine body from top to bottom, a first driven bevel gear is fixed to one end of the crankshaft, the outer surface of the crankshaft is sleeved with a rotating sleeve, a connecting rod is fixed to the bottom of the rotating sleeve, a movable frame is hinged to the bottom end of the connecting rod, and a tool rest is fixed to the bottom of the movable frame. According to the multi-stage medicinal material smashing device, through multi-stage smashing in different modes and in cooperation with final screening of the screening disc, the medicinal material smashing efficiency is improved, meanwhile, medicinal materials are fully and evenly smashed, and the quality of the smashed medicinal materials is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of medicinal material processing equipment, specifically to an automatic medicinal pulverizer with a multi-stage pulverizing structure. Background Technology

[0002] A pulverizer is a device that pulverizes materials. In the pharmaceutical industry, pharmaceutical raw materials need to be pulverized before production, and a pulverizer is required for this process.

[0003] The prior art discloses an automatic pharmaceutical pulverizer with a multi-stage pulverizing structure, which is applied for in patent application number CN202120808616.7. Although the automatic pharmaceutical pulverizer with a multi-stage pulverizing structure achieves multi-stage pulverization when pulverizing pharmaceutical raw materials, its pulverizing structure is relatively simple. It relies on the rotation of blades to pulverize the medicinal materials, making it difficult to ensure that the first and second blades can fully contact and pulverize each piece of medicinal material. Moreover, the device is not convenient for screening the pulverized medicinal materials, which easily leads to the pulverized medicinal materials being of different sizes and the pulverizing effect being less than ideal. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide an automatic pharmaceutical pulverizer with a multi-stage pulverizing structure to solve the technical problems mentioned above in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic pharmaceutical pulverizer with a multi-stage pulverizing structure, comprising a machine body, wherein a crankshaft, mounting frame, material strainer, rotating shaft, connecting shaft, and guide rail are respectively installed inside the machine body from top to bottom; a first driven bevel gear is fixed at one end of the crankshaft; a rotating sleeve is sleeved on the outer surface of the crankshaft; a connecting rod is fixed at the bottom of the rotating sleeve; a movable frame is hinged at the bottom end of the connecting rod; a blade holder is fixed at the bottom of the movable frame; and a cutter is fixed at the bottom of the blade holder; two sets of connecting shafts are provided, and biting rollers are provided on the outer surfaces of the two sets of connecting shafts; a worm gear is fixed at one end of the connecting shaft; a pulverizing roller and a transmission bevel gear are respectively provided on the outer surface of the rotating shaft; and a second driven bevel gear is fixed at one end of the rotating shaft; a sieve disc is installed on the inner side of the guide rail via a slip ring; and a bevel gear ring is provided on the outer surface of the sieve disc; a motor is provided on one side of the machine body; a worm gear is connected to the output end of the motor; and a first driving bevel gear and a second driving bevel gear are respectively provided above and below the outer surface of the worm gear.

[0006] Furthermore, a feeding port is provided on the other side of the machine body, and a discharge port is provided at the bottom of the machine body.

[0007] By adopting the above technical solution, the staff can add the medicinal materials into the machine through the feeding port, and the crushed medicinal materials are discharged from the discharge port.

[0008] Furthermore, the outer surface of the machine body is provided with a control panel, and the control panel is electrically connected to the motor.

[0009] By adopting the above technical solution, staff can control the motor through the control panel to achieve the purpose of turning the motor on and off or adjusting the motor speed.

[0010] Furthermore, the machine body is also provided with a guide plate and a guide ring in the middle, with the guide plate located between the feed plate and the crushing roller, and the guide ring located between the crushing roller and the screen plate.

[0011] By adopting the above technical solution, some of the chopped medicinal materials fall onto the guide plate, which then flows the medicinal materials back between the two crushing rollers for secondary crushing. After secondary crushing, some of the medicinal materials can fall onto the screen plate through the guide ring for final crushing.

[0012] Furthermore, the outer surface of the crushing roller is in contact with the lower interior of the sieve disc.

[0013] By adopting the above technical solution, when the crushing roller rotates, it can crush the medicinal materials on the crushing screen, and the crushed medicinal materials fall off the screen.

[0014] Furthermore, the movable frame is provided in two sets, and the two sets of movable frames are slidably engaged with the mounting frame.

[0015] By adopting the above technical solution, the design of two sets of movable frames and mounting frames makes the up-and-down movement of the tool holder more stable.

[0016] Furthermore, the transmission bevel gear meshes with the bevel gear ring, and the screen disc is slidably connected to the guide rail via a slip ring.

[0017] By adopting the above technical solution, the rotation of the transmission bevel gear can cause the bevel gear ring to rotate, thereby causing the screen disc and the slip ring to rotate within the guide rail.

[0018] Furthermore, the worm gear is provided in two sets, and the worm is located between the two sets of worm gears and meshes with the worm gears. The first active bevel tooth meshes with the first driven bevel tooth, and the second active bevel tooth meshes with the second driven bevel tooth.

[0019] By adopting the above technical solution, the rotation of the worm gear can cause the two sets of worm wheels to rotate in opposite directions. The rotation of the first active bevel tooth can drive the rotation of the first driven bevel tooth, and the rotation of the second active bevel tooth can drive the rotation of the second driven bevel tooth.

[0020] Furthermore, the cutter is provided in several groups, and the several groups of cutters are evenly distributed at equal intervals.

[0021] By adopting the above technical solution

[0022] Several sets of cutting blades move up and down to initially pulverize the medicinal materials, reducing their particle size.

[0023] Furthermore, a vibrator is installed at the bottom of the material leakage plate.

[0024] By adopting the above technical solution, the material feeding of the feed plate is faster under the action of the vibrator, and the medicinal materials on the feed plate can be evenly distributed, ensuring that the cutter can fully chop the medicinal materials.

[0025] In summary, the present invention has the following main advantages:

[0026] 1. This utility model uses the rotation of a motor to drive the worm gear to rotate the first active bevel gear, which in turn drives the crankshaft to rotate. This causes the rotating sleeve and connecting rod to move the movable frame up and down, which in turn drives the blade holder and the cutter to move up and down reciprocally, thereby enabling the medicinal materials to be chopped and achieving the purpose of the first crushing, laying the foundation for subsequent crushing.

[0027] 2. This utility model uses a worm gear to drive two sets of worm wheels to rotate in opposite directions, which in turn causes the connecting shaft to drive two sets of crushing rollers to rotate in opposite directions. The chopped medicinal materials fall between the two sets of crushing rollers, which can crush the medicinal materials, thereby achieving the purpose of secondary crushing and further reducing the size of the medicinal materials.

[0028] 3. This utility model features a worm gear that drives a second active bevel gear to rotate, which in turn drives a rotating shaft to rotate a transmission bevel gear and a crushing roller. The crushed medicinal materials fall into a sieve tray. As the crushing roller rotates, it works with the sieve tray to crush the medicinal materials. The rotation of the transmission bevel gear causes the sieve tray to rotate, which continuously feeds the medicinal materials to the crushing roller, resulting in thorough and uniform crushing. Qualified crushed medicinal materials fall from the sieve tray, while unqualified materials continue to be crushed, thus ensuring that the crushed medicinal materials are of uniform size, improving the crushing effect. Furthermore, the action of the sieve tray accelerates the screening efficiency and increases the processing speed of the medicinal materials.

[0029] 4. This utility model accelerates the pulverization efficiency of medicinal materials by using multi-stage pulverization with different methods, combined with the final screening by a sieve disc, while also ensuring that the medicinal materials are fully and evenly pulverized, thus improving the quality of the pulverized medicinal materials. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the cross-sectional structure of the body of this utility model;

[0032] Figure 3 This is a schematic diagram of the worm gear structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the tool holder and connecting frame structure of this utility model;

[0034] Figure 5 This is a schematic diagram of the crushing roller structure of this utility model;

[0035] Figure 6 This is a schematic diagram of the cross-sectional structure of the drying tray of this utility model;

[0036] Figure 7 This is a schematic cross-sectional view of the material leakage plate of this utility model.

[0037] In the diagram: 1. Machine body; 2. Feed port; 3. Motor; 4. Worm gear; 5. First driving bevel gear; 6. Second driving bevel gear; 7. Control panel; 8. Discharge port; 9. Crankshaft; 10. Mounting frame; 11. Knife holder; 12. Strainer plate; 13. Guide plate; 14. Connecting shaft; 15. Worm gear; 16. Crushing roller; 17. Guide ring; 18. Rotating shaft; 19. Guide rail; 20. First driven bevel gear; 21. Second driven bevel gear; 22. Crushing roller; 23. Screen plate; 24. Rotating sleeve; 25. Connecting rod; 26. Movable frame; 27. Transmission bevel gear; 28. Slip ring; 29. ​​Bevel gear ring; 30. Cutter; 31. Vibrator. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] The embodiments of this utility model will be described below based on its overall structure.

[0040] Example 1: An automatic pharmaceutical pulverizer with a multi-stage pulverizing structure, such as... Figures 1-6As shown, the machine includes a body 1, with a feeding port 2 on one side and a discharge port 8 at the bottom. Workers can add medicinal materials into the machine through the feeding port 2, and the pulverized materials are discharged from the discharge port 8. Inside the machine 1, from top to bottom, are a crankshaft 9, a mounting bracket 10, a strainer plate 12, a rotating shaft 18, a connecting shaft 14, and a guide rail 19. A first driven bevel gear 20 is fixed to one end of the crankshaft 9, and a rotating sleeve 24 is fitted onto the outer surface of the crankshaft 9. A connecting rod 25 is fixed to the bottom of the rotating sleeve 24. A movable frame 26 is hinged to the bottom end of the connecting rod 25. A knife holder 11 is fixed to the bottom of the movable frame 26, and a cutter 30 is fixed to the bottom of the knife holder 11. Two sets of connecting shafts 14 are provided, and the outer surfaces of the two sets of connecting shafts 14 are provided with crushing rollers 16. A worm gear 15 is fixed to one end of the connecting shaft 14. The outer surface of the rotating shaft 18 is provided with crushing rollers 22 and transmission bevel gears 27, and one end of the rotating shaft 18 is fixed with a second driven bevel gear 21. A sieve disc 23 is installed on the inner side of the guide rail 19 through a slip ring 28, and the outer surface of the sieve disc 23 is provided with a bevel gear ring. 29. A motor 3 is provided on one side of the machine body 1. The output end of the motor 3 is connected to a worm gear 4. A first active bevel tooth 5 and a second active bevel tooth 6 are respectively provided above and below the outer surface of the worm gear 4. A guide plate 13 and a guide ring 17 are also provided in the middle of the interior of the machine body 1. The guide plate 13 is located between the discharge plate 12 and the crushing roller 16. The guide ring 17 is located between the crushing roller 16 and the sieve plate 23. Some of the chopped medicinal materials fall onto the guide plate 13, which guides the medicinal materials back to the two crushing rollers 16 for secondary powdering. The crushed medicinal materials, after secondary crushing, can fall onto the sieve plate 23 through the guide ring 17 for final crushing. The worm wheel 15 is provided in two sets, and the worm 4 is located between the two sets of worm wheels 15 and meshes with the worm wheels 15. The first active bevel tooth 5 meshes with the first driven bevel tooth 20, and the second active bevel tooth 6 meshes with the second driven bevel tooth 21. The rotation of the worm 4 can cause the two sets of worm wheels 15 to rotate in opposite directions. The rotation of the first active bevel tooth 5 can drive the first driven bevel tooth 20 to rotate, and the rotation of the second active bevel tooth 6 can drive the second driven bevel tooth 21 to rotate.

[0041] See Figure 1 In the above embodiment, the outer surface of the machine body 1 is provided with a control panel 7, and the control panel 7 is electrically connected to the motor 3. The operator can control the motor 3 through the control panel 7 to achieve the purpose of turning the motor 3 on and off or adjusting the speed of the motor 3.

[0042] See Figure 2 , Figure 3 and 6In the above embodiment, the outer surface of the crushing roller 22 is in contact with the lower interior of the sieve disk 23. When the crushing roller 22 rotates, it can crush the medicinal materials on the crushing sieve disk 23, and the crushed medicinal materials fall off the sieve disk 23.

[0043] See Figures 2-4 In the above embodiment, the movable frame 26 is provided in two sets, and the two sets of movable frames 26 are slidably engaged with the mounting frame 10. The design of the two sets of movable frames 26 and the mounting frame 10 makes the up-and-down movement of the tool holder 11 more stable.

[0044] See Figure 2 , 3 and Figure 6 In the above embodiment, the transmission bevel tooth 27 meshes with the bevel tooth ring 29, and the screen disk 23 is slidably connected to the guide rail 19 through the slip ring 28. When the transmission bevel tooth 27 rotates, it can cause the bevel tooth ring 29 to rotate, thereby causing the screen disk 23 to rotate in the guide rail 19 in conjunction with the slip ring 28.

[0045] See Figures 2-4 In the above embodiment, the cutter 30 is provided in several groups, and the several groups of cutters 30 are evenly distributed at equal intervals. The several groups of cutters 30 can perform preliminary crushing of the medicinal materials by moving up and down, thereby reducing the size of the medicinal materials.

[0046] Example 2: To accelerate the falling speed of the medicinal materials and ensure their uniform distribution, Example 2 is an improvement upon Example 1. (See attached document for details.) Figure 7 A vibrator 31 is installed at the bottom of the material feeding plate 12. The vibrator 31 is electrically connected to the control panel 7. Under the action of the vibrator 31, the material feeding of the material feeding plate 12 is faster, and the medicinal materials on the material feeding plate 12 can be evenly distributed, ensuring that the cutter 30 fully cuts the medicinal materials. At the same time, the worm drives two sets of worm wheels to rotate in opposite directions, which in turn causes the connecting shaft to drive two sets of crushing rollers to rotate in opposite directions. The chopped medicinal materials fall between the two sets of crushing rollers, and the two sets of crushing rollers can crush the medicinal materials, thereby achieving the purpose of secondary crushing.

[0047] The implementation principle of this utility model is as follows: First, the staff can add the medicinal materials into the feeding port 2, and the medicinal materials fall onto the leakage plate 12. Then, the motor 3 is started. The rotation of the motor 3 causes the worm gear 4 to drive the first active bevel gear 5 to rotate, which in turn causes the first driven bevel gear 20 to drive the crankshaft 9 to rotate. This causes the rotating sleeve 24 to move up and down with the connecting rod 25, thereby causing the movable frame 26 to move up and down. This causes the movable frame 26 to drive the knife holder 11 and the cutter 30 to move up and down reciprocally, thus being able to chop the medicinal materials. The worm gear 4 drives the second active bevel gear 5 to rotate. The bevel gear 6 rotates, which causes the rotating shaft 18 to drive the transmission bevel gear 27 and the crushing roller 22 to rotate. The crushed medicinal materials fall into the sieve plate 23. When the crushing roller 22 rotates, it can work with the sieve plate 23 to crush the medicinal materials. The rotation of the transmission bevel gear 27 can cause the sieve plate 23 to rotate. The rotation of the sieve plate 23 can continuously feed the medicinal materials to the crushing roller 22, so that the medicinal materials can be fully and evenly crushed. The qualified medicinal materials fall from the sieve plate 23, and the unqualified medicinal materials continue to be crushed. The crushed medicinal materials are discharged from the discharge port 8.

[0048] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. An automatic pharmaceutical pulverizer with a multi-stage pulverizing structure, comprising a machine body (1), characterized in that: The machine body (1) is equipped with a crankshaft (9), a mounting bracket (10), a material strainer (12), a rotating shaft (18), a connecting shaft (14), and a guide rail (19) from top to bottom. One end of the crankshaft (9) is fixed with a first driven bevel gear (20). A rotating sleeve (24) is sleeved on the outer surface of the crankshaft (9). A connecting rod (25) is fixed at the bottom of the rotating sleeve (24). A movable frame (26) is hinged to the bottom of the connecting rod (25). A knife holder (11) is fixed at the bottom of the movable frame (26), and a cutter (30) is fixed at the bottom of the knife holder (11). The connecting shaft (14) is provided in two sets, and the two sets of connecting shafts (14) are connected to each other. The surface is provided with a crushing roller (16), one end of the connecting shaft (14) is fixed with a worm gear (15), the outer surface of the rotating shaft (18) is provided with a crushing roller (22) and a transmission bevel gear (27), and one end of the rotating shaft (18) is fixed with a second driven bevel gear (21). The inner side of the guide rail (19) is equipped with a screen plate (23) through a slip ring (28), and the outer surface of the screen plate (23) is provided with a bevel gear ring (29). One side of the machine body (1) is provided with a motor (3), the output end of the motor (3) is connected to a worm gear (4), and the upper and lower outer surfaces of the worm gear (4) are respectively provided with a first active bevel gear (5) and a second active bevel gear (6).

2. The automatic pharmaceutical pulverizer with a multi-stage pulverizing structure according to claim 1, characterized in that: The other side of the machine body (1) is provided with a feeding port (2), and the bottom of the machine body (1) is provided with a discharge port (8).

3. The automatic pharmaceutical pulverizer with a multi-stage pulverizing structure according to claim 1, characterized in that: The outer surface of the body (1) is provided with a control panel (7), and the control panel (7) is electrically connected to the motor (3).

4. The automatic pharmaceutical pulverizer with a multi-stage pulverizing structure according to claim 1, characterized in that: The machine body (1) is also provided with a guide plate (13) and a guide ring (17) in the middle of the interior. The guide plate (13) is located between the material leakage plate (12) and the crushing roller (16), and the guide ring (17) is located between the crushing roller (16) and the screen plate (23).

5. The automatic pharmaceutical pulverizer with a multi-stage pulverizing structure according to claim 1, characterized in that: The outer surface of the crushing roller (22) is in contact with the lower interior of the sieve disc (23).

6. The automatic pharmaceutical pulverizer with a multi-stage pulverizing structure according to claim 1, characterized in that: The movable frame (26) is provided in two sets, and the two sets of movable frames (26) are slidably engaged with the mounting frame (10).

7. The automatic pharmaceutical pulverizer with a multi-stage pulverizing structure according to claim 1, characterized in that: The transmission bevel gear (27) meshes with the bevel gear ring (29), and the screen plate (23) is slidably connected to the guide rail (19) through the slip ring (28).

8. The automatic pharmaceutical pulverizer with a multi-stage pulverizing structure according to claim 1, characterized in that: The worm gear (15) is provided in two sets, and the worm (4) is located between the two sets of worm gears (15) and meshes with the worm gears (15). The first active bevel tooth (5) meshes with the first driven bevel tooth (20), and the second active bevel tooth (6) meshes with the second driven bevel tooth (21).

9. The automatic pharmaceutical pulverizer with a multi-stage pulverizing structure according to claim 1, characterized in that: The cutter (30) is provided in several groups, and the several groups of cutters (30) are evenly distributed at equal intervals.

10. The automatic pharmaceutical pulverizer with a multi-stage pulverizing structure according to claim 1, characterized in that: A vibrator (31) is installed at the bottom of the material leakage plate (12).

Citation Information

Patent Citations

  • Medicinal automatic pulverizer with multi-stage pulverizing structure

    CN214916699U