A pulverizing mechanism for solid preparations

Abstract

The utility model relates to the technical field of solid preparation processing discloses a kind of comminuting mechanism for solid preparation, including comminuting seat two, the left side surface of comminuting seat two is symmetrically fixed with two motor two, the output end of motor two is fixed with comminuting roller, the upper end of comminuting seat two is provided with comminuting assembly, and the lower end of comminuting seat two is fixed with the support box that is communicated in its inside;The inside of the support box is installed with filter plate, the outside of filter plate is fixed with support sleeve, the right side surface of the support box is provided with shaking mechanism;The utility model is by being arranged filter plate and the synergistic effect of shaking mechanism, significantly improve screening efficiency and comminuting quality;Filter plate can accurately screen qualified particles and substandard residue, ensure product uniformity;The reciprocating drive of cam and spring in cooperation shaking mechanism, make filter plate continue to produce horizontal vibration, effectively avoid screen hole blockage, accelerate fine powder to fall, simultaneously promote residual coarse particle re-enter comminuting process.

Description

Technical Field

[0001] This utility model relates to the field of solid dosage form processing technology, specifically a pulverizing mechanism for solid dosage forms. Background Technology

[0002] Commonly used solid dosage forms include powders, granules, tablets, capsules, pills, and films, accounting for about 70% of pharmaceutical preparations. The common characteristics of solid dosage forms are that, compared with liquid dosage forms, they have better physical and chemical stability, lower production and manufacturing costs, and are more convenient to take and carry. The pretreatment process of solid dosage forms involves the same unit operation to ensure uniform mixing and accurate dosage of the drug. Moreover, there is a close relationship between dosage forms. The raw materials and excipients used in solid dosage forms need to be pulverized, and the pulverized drugs are more convenient to package and use.

[0003] During the production of solid dosage forms, some solid dosage forms need to be crushed into powder. Therefore, the solid dosage forms need to be crushed layer by layer. If the dosage form cannot be ground into powder, it will need to be ground again later, which not only wastes time but also reduces work efficiency.

[0004] Chinese patent discloses a solid dosage form production crushing device (authorization announcement number CN220004325U). The patented technology involves: rotating cutting teeth cutting the solid dosage form on the filter plate into small pieces. When the cut solid dosage form falls off the filter plate, it falls between two tempered rollers. The crushed solid dosage form is squeezed by the two tempered rollers to form powder. In this way, the solid dosage form is first cut by the cutting teeth to break it into small pieces, and then squeezed by the two tempered rollers to form powder. At this time, the solid dosage form does not need to be ground again after being crushed and squeezed through layers of crushing and squeezing. This makes it convenient for patients to use later. It not only saves the time of re-grinding the dosage form but also improves work efficiency. Moreover, no manual operation is required when the solid dosage form is formed into powder.

[0005] However, it has certain drawbacks: the crushed material is not effectively graded, resulting in substandard particles mixed in the finished product, which requires manual secondary screening or rework, extending the production cycle and increasing operating costs. Utility Model Content

[0006] The purpose of this invention is to provide a pulverizing mechanism for solid dosage forms to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A pulverizing mechanism for solid dosage forms includes a pulverizing base two. Two motors two are symmetrically fixed to the left side surface of the pulverizing base two in the front-back direction. A pulverizing roller is fixed to the output end of the motor two. A pulverizing assembly is provided at the upper end of the pulverizing base two, and a support box communicating with the interior is fixed to the lower end of the pulverizing base two.

[0009] A filter plate is installed inside the support box, and a support sleeve is fixedly sleeved on the outside of the filter plate. A shaking mechanism is provided on the right side surface of the support box. The shaking mechanism includes a support plate. A motor is fixedly connected to the lower surface of the support plate. A cam is fixedly connected to the output end of the motor. A shaking element is provided on the upper surface of the support plate to the left of the cam.

[0010] As a further embodiment of this utility model: the crushing assembly includes a crushing seat, a feed pipe connected to the upper surface of the crushing seat is fixedly connected to the upper surface of the crushing seat, and a motor is fixedly connected to the rear surface of the crushing seat. A fixed shaft is fixedly connected to the output end of the motor, and multiple crushing blades are uniformly fixedly sleeved on the outside of the fixed shaft from front to back.

[0011] As a further embodiment of this utility model: the shaking component includes a first connecting block, a connecting rod is movably connected through the inside of the first connecting block, a second connecting block is fixedly sleeved on the right side of the connecting rod, and a spring is fixedly connected to the left side surface of the second connecting block on the outside of the connecting rod.

[0012] As a further embodiment of this utility model: the crushing roller is located inside the crushing seat two, and the right end of the crushing roller is rotatably connected to the right side surface inside the crushing seat two, and the left end of the support plate is fixed to the right side surface of the support box.

[0013] As a further embodiment of this utility model: the lower end of the first crushing seat is fixed to the upper surface of the second crushing seat, and the first crushing seat is connected to the interior of the second crushing seat, and the fixed shaft and the crushing blade are both located inside the first crushing seat.

[0014] As a further embodiment of this utility model: the lower end of the first connecting block is fixed to the upper surface of the support plate, the connecting rod moves through the right side surface of the support box, and the left end of the connecting rod is fixed to the right side surface of the support sleeve. The right end of the connecting rod moves and fits against the cam. The lower end of the second connecting block is slidably connected to the upper surface of the support plate, and the left end of the spring is fixed to the first connecting block.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention significantly improves screening efficiency and pulverization quality by combining a filter plate with a shaking mechanism. The filter plate can accurately screen qualified particles and substandard residues, ensuring the uniformity of the finished product. In conjunction with the reciprocating drive of the cam and spring in the shaking mechanism, the filter plate continuously generates horizontal vibration, effectively preventing sieve hole blockage, accelerating the fall of fine powder, and prompting residual coarse particles to re-enter the pulverization process. This design realizes automated and efficient operation of the screening process, reduces the frequency of manual cleaning, and ensures the continuity and stability of the solid dosage form pulverization process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a pulverizing mechanism for solid dosage forms;

[0018] Figure 2 This is a partial cross-sectional view of a pulverizing mechanism for solid dosage forms;

[0019] Figure 3 This is a schematic diagram of the pulverizing assembly in a pulverizing mechanism for solid dosage forms;

[0020] Figure 4 A cross-sectional view of a pulverizing assembly in a pulverizing mechanism for solid dosage forms;

[0021] Figure 5 This is a schematic diagram of the shaking mechanism in a pulverizing mechanism for solid dosage forms.

[0022] In the diagram: 1. Crushing base two; 2. Motor two; 3. Crushing roller; 4. Crushing assembly; 5. Crushing base one; 6. Feed pipe; 7. Motor one; 8. Fixed shaft; 9. Crushing blade; 10. Support box; 11. Filter plate; 12. Support sleeve; 13. Vibration mechanism; 14. Support plate; 15. Motor three; 16. Cam; 17. Vibrating component; 18. Connecting block one; 19. Connecting rod; 20. Connecting block two; 21. Spring. Detailed Implementation

[0023] Please see Figures 1-4In this embodiment of the present invention, a pulverizing mechanism for solid dosage forms includes a pulverizing base 1. Two motors 2 are symmetrically fixed to the left side surface of the pulverizing base 1 in the front-back direction. A pulverizing roller 3 is fixed to the output end of the motor 2. The pulverizing roller 3 is located inside the pulverizing base 1, and the right end of the pulverizing roller 3 is rotatably connected to the right side surface inside the pulverizing base 1. A pulverizing assembly 4 is provided at the upper end of the pulverizing base 1. The pulverizing assembly 4 includes a pulverizing base 5. The lower end of the pulverizing base 5 is fixed to the upper surface of the pulverizing base 1, and the pulverizing base 5 is connected to the interior of the pulverizing base 1. A feed pipe 6 connected to the interior of the pulverizing base 5 is fixed to the upper surface of the pulverizing base 5, and a motor 7 is fixed to the rear surface of the pulverizing base 5. A fixed shaft 8 is fixed to the output end of the motor 7. Multiple pulverizing blades 9 are uniformly fixedly sleeved on the outside of the fixed shaft 8 from front to back. The fixed shaft 8 and the pulverizing blades 9 are both located inside the pulverizing base 5. A support box 10 connected to the interior of the pulverizing base 1 is fixed to the lower end of the pulverizing base 1.

[0024] Solid dosage forms are fed into the pulverizing chamber 5 through the feed pipe 6, and the pulverizing blade 9 performs primary pulverization (coarse pulverization) on the falling solid dosage forms.

[0025] Looking from left to right (left view), the left crushing roller 3 rotates clockwise and the right crushing roller 3 rotates counterclockwise, used for secondary crushing of solid preparations; the roller teeth of the two crushing rollers 3 can achieve precise staggered engagement when rotating (left roller clockwise, right roller counterclockwise), forming a dynamic shearing surface. The staggered shearing of the teeth can generate concentrated shear stress, preferentially breaking along the crystal defects or weak surfaces of the preparation, reducing random breakage compared to impact crushing, and the finished product has a concentrated particle size distribution (complete crushing).

[0026] A collection tray is installed on the lower inner surface of the support box 10. The front end of the collection tray moves through the front surface of the support box 10 to collect the pulverized solid preparation.

[0027] The collection drawer is heavy enough to be stably positioned in the support box 10.

[0028] exist Figure 1 , Figure 2 and Figure 5In the middle section: A filter plate 11 is installed inside the support box 10. A support sleeve 12 is fixedly sleeved on the outside of the filter plate 11. A shaking mechanism 13 is provided on the right side surface of the support box 10. The shaking mechanism 13 includes a support plate 14. The left end of the support plate 14 is fixed to the right side surface of the support box 10. A motor 15 is fixed to the lower surface of the support plate 14. A cam 16 is fixed to the output end of the motor 15. A shaking element 17 is provided on the upper surface of the support plate 14 to the left of the cam 16. The shaking element 17 includes a connecting block 18. The lower end of the connecting block 18 is fixed to the upper part of the support plate 14. On the surface, a connecting rod 19 is movably connected through the interior of the connecting block 18. The connecting rod 19 movably passes through the right side surface of the support box 10, and the left end of the connecting rod 19 is fixed to the right side surface of the support sleeve 12. The right end of the connecting rod 19 is movably attached to the cam 16. A connecting block 20 is fixedly sleeved on the outside of the connecting block 18 on the right side. The lower end of the connecting block 20 is slidably connected to the upper surface of the support plate 14. A spring 21 is fixedly connected on the left side surface of the connecting block 20 on the outside of the connecting rod 19. The left end of the spring 21 is fixed to the connecting block 18.

[0029] The filter plate 11 is used to screen the pulverized solid dosage form, blocking the incompletely pulverized solid dosage form and allowing the completely pulverized solid dosage form to fall through.

[0030] A limiting sleeve is fixed to the right side surface of the support sleeve 12. A bolt is threaded through the upper surface of the limiting sleeve. The bolt presses against the connecting rod 19. Loosening the bolt 9 can remove the support sleeve 12 and the filter plate 11 inside it, making it easier to clean up the incompletely crushed solid preparation.

[0031] The rotation of cam 16 can push connecting rod 19 to the left, and connecting rod 19 is reset to the right by spring 21, thus forming a left-right reciprocating movement, which in turn drives support sleeve 12 to move left-right reciprocating to form vibration, so that the solid preparation on the surface of filter plate 11 falls quickly, improving screening efficiency.

[0032] The working principle of this utility model is as follows: Solid dosage form is fed into the pulverizing chamber 1 5 through the feed pipe 6. Motor 1 7 drives the fixed shaft 8 to drive multiple sets of pulverizing blades 9 to rotate at high speed, performing primary pulverization on the falling material. The material after primary pulverization falls into the pulverizing chamber 2 1. Two motors 2 2 drive one pulverizing roller 3 to rotate clockwise and the other pulverizing roller 3 to rotate counterclockwise, forming a shearing action to complete secondary pulverization. The pulverized material falls onto the surface of the filter plate 11 in the support box 10. Qualified powder falls into the bottom collection tray through the sieve holes, while unqualified particles are intercepted. At the same time, motor 3 15 drives the cam... In cycle 16, the connecting rod 19 is pushed to the left, and the spring 21 drives the connecting block 20 to the right to reset, causing the support sleeve 12 to drive the filter plate 11 to shake continuously from left to right, thus accelerating the screening efficiency. Finally, the solid preparations that meet the particle size requirements are screened by the filter plate 11 and stored in a pull-out collection drawer. The collection drawer can be pulled forward to remove the solid preparations. Then, the staff can use a wrench to move out of the opening of the collection drawer from the front of the support box 10 and insert it into the support box 10 to loosen the bolt on the right side surface limit sleeve of the support sleeve 12. This allows the support sleeve 12 to be removed, making it easier to clean the surface of the filter plate 11 of any non-compliant solid preparations.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A pulverizing mechanism for solid dosage forms, characterized in that, The device includes a crushing seat 2 (1), on which two motors 2 (2) are symmetrically fixed in the front-back direction on the left side surface. A crushing roller (3) is fixed to the output end of the motors 2 (2). A crushing assembly (4) is provided at the upper end of the crushing seat 2 (1), and a support box (10) connected to its interior is fixed at the lower end of the crushing seat 2 (1). The support box (10) is equipped with a filter plate (11) inside. A support sleeve (12) is fixedly sleeved on the outside of the filter plate (11). A shaking mechanism (13) is provided on the right side surface of the support box (10). The shaking mechanism (13) includes a support plate (14). A motor (15) is fixedly connected to the lower surface of the support plate (14). A cam (16) is fixedly connected to the output end of the motor (15). A shaking element (17) is provided on the upper surface of the support plate (14) to the left of the cam (16). The crushing assembly (4) includes a crushing seat (5), the upper surface of the crushing seat (5) is fixedly connected to a feed pipe (6) communicating with its interior, and the rear surface of the crushing seat (5) is fixedly connected to a motor (7), the output end of the motor (7) is fixedly connected to a fixed shaft (8), and a plurality of crushing blades (9) are uniformly fixedly sleeved on the outside of the fixed shaft (8) from front to back. The vibrating component (17) includes a connecting block one (18), a connecting rod (19) is movably connected inside the connecting block one (18), a connecting block two (20) is fixedly sleeved on the outside of the connecting rod (19) on the right side of the connecting block one (18), and a spring (21) is fixedly connected to the left side surface of the connecting block two (20) on the outside of the connecting rod (19).

2. The pulverizing mechanism for solid dosage forms according to claim 1, characterized in that, The crushing roller (3) is located inside the crushing seat (1), and the right end of the crushing roller (3) is rotatably connected to the right side surface of the inside of the crushing seat (1). The left end of the support plate (14) is fixed to the right side surface of the support box (10).

3. The pulverizing mechanism for solid dosage forms according to claim 1, characterized in that, The lower end of the first crushing seat (5) is fixed to the upper surface of the second crushing seat (1), and the first crushing seat (5) is connected to the interior of the second crushing seat (1). The fixed shaft (8) and the crushing blade (9) are both located inside the first crushing seat (5).

4. The pulverizing mechanism for solid dosage forms according to claim 1, characterized in that, The lower end of the first connecting block (18) is fixed to the upper surface of the support plate (14), the connecting rod (19) moves through the right side surface of the support box (10), and the left end of the connecting rod (19) is fixed to the right side surface of the support sleeve (12). The right end of the connecting rod (19) moves to fit against the cam (16). The lower end of the second connecting block (20) is slidably connected to the upper surface of the support plate (14), and the left end of the spring (21) is fixed to the first connecting block (18).

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