Medicine grinding device for pharmacy
By introducing a corrugated annular outer filter and grinding roller structure into the drug grinding device, combined with the pretreatment of the inner filter and grinding blade, the problem of insufficient contact area between the grinding tank and the grinding roller is solved, achieving more efficient drug grinding and cleaning.
Patent Information
- Application Number
- CN202422776850.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-14
AI Technical Summary
In existing pharmaceutical grinding devices, the limited contact area between the grinding tank and the grinding roller results in low grinding efficiency.
The system employs a wavy annular outer filter and a grinding roller structure. The grinding roller is rotated by a motor-driven shaft, and the combination of spring sheets and telescopic plates increases the collision and friction opportunities between drug particles and the filter. At the same time, an inner filter and grinding blades are set up for pretreatment to initially break the drug into smaller particles, which are then further ground in the outer filter.
It improves the efficiency and uniformity of drug grinding, enhances the ability to break down drugs with high hardness, simplifies the cleaning process, and improves cleaning efficiency.
Smart Images
Figure CN223530491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drug grinding technology, and in particular to a pharmaceutical drug grinding device. Background Technology
[0002] Pharmaceutical grinding equipment is a device specifically designed to grind drug raw materials into fine powder or change the particle size of drugs. It plays an important role in pharmaceutical research, pharmaceutical industrial production, and hospital pharmacy dispensing.
[0003] Existing patent CN221514656U discloses a pharmaceutical grinding device. Drugs are added to the grinding chamber through the feed inlet. A rotating grinding roller crushes and grinds the drugs. A scraper, in contact with the grinding roller, removes the drugs adhering to it, allowing them to fall back into the grinding trough for further grinding. Simultaneously, protruding inclined blocks on the surface of the grinding roller rotate with it and engage with the grinding trough, dispersing and breaking up the drugs adhering to the inner side of the trough. This prevents the drugs from remaining in the same position and being crushed into a cake shape without being completely pulverized, thus improving the grinding speed and quality.
[0004] The above technical solution uses a scraper and a grinding trough to grind the drug by rotating the grinding roller. When the ground drug adheres to the grinding roller, the scraper on the grinding box scrapes off the drug powder on the grinding roller, causing the drug powder to fall back into the grinding trough for re-grinding. The inclined block on the grinding roller disperses the drug powder, thus solving the problem that the drug is always in the same position and is crushed into a cake shape and cannot be completely pulverized.
[0005] However, in actual use, there are still the following shortcomings. For example, since the grinding groove is an arc-shaped structure, when the grinding roller rotates to grind the drug, the contact area between the grinding groove and the grinding roller is limited, resulting in a limited amount of drug to be ground, which is not conducive to improving grinding efficiency. Therefore, this utility model proposes a pharmaceutical drug grinding device. Utility Model Content
[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a pharmaceutical grinding device.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a pharmaceutical grinding device, comprising a base and a feeding assembly. The base is provided with a grinding assembly, the grinding assembly has a pretreatment assembly inside it, the grinding assembly is provided with a movable assembly, and the feeding assembly is provided on the movable assembly.
[0008] The grinding assembly includes a housing and an outer filter screen. The housing is fixedly connected to the base, and the outer filter screen is disposed inside the housing. The outer filter screen has a wavy annular structure. A rotating shaft is rotatably connected to the housing and the outer filter screen. A connecting plate is fixedly connected to one end of the rotating shaft near the outer filter screen. A telescopic plate is slidably connected to the side of the connecting plate away from the rotating shaft. A spring is fixedly connected between the telescopic plate and the connecting plate. A grinding roller is rotatably connected to the side of the telescopic plate near the outer filter screen. The grinding roller is drively connected to the outer filter screen.
[0009] In a preferred embodiment, the pretreatment component includes an inner filter and a grinding blade. The inner filter is disposed inside the housing near the outer filter, and the diameter of the inner filter is smaller than the diameter of the outer filter. A grinding blade is fixedly connected to one end of the rotating shaft near the inner filter, and a scraper is fixedly connected to the inside of the grinding blade near the grinding blade.
[0010] The technical effect of adopting the above technical solution is that it breaks down the originally large block or coarse particles of medicine into smaller particles or fragments. In the subsequent grinding process, the grinding device only needs to further refine these smaller particles, which helps to improve the grinding speed of the grinding device.
[0011] In a preferred embodiment, both the outer filter and the inner filter are provided with filter holes, and the diameter of the filter holes on the outer filter is smaller than the diameter of the filter holes on the inner filter.
[0012] The technical effect of adopting the above technical solution is that using a filter screen with a smaller pore size for grinding refines the drug particles to an ideal particle size range, which helps to make the drug particles more uniform in size.
[0013] In a preferred embodiment, the movable component includes a slide rail and a sealing plate. The sealing plate is disposed on the side of the housing near the outer and inner filters. The outer and inner filters are fixedly connected to the sealing plate. The sealing plate is rotatably connected to the rotating shaft. The slide rail is fixedly connected to the side of the housing near the sealing plate. A slider is slidably connected inside the slide rail near the sealing plate. The slider is fixedly connected to the sealing plate.
[0014] The technical effect of adopting the above technical solution is that it facilitates the cleaning of the grinding device, which helps to improve the cleaning efficiency. After cleaning, the sealing plate is pushed to seal the sealing plate and the outer shell. Then, bolts are used to fix the outer shell and the sealing plate to complete the installation.
[0015] In a preferred embodiment, a limiting block is fixedly connected to the side of the slide rail near the slider, and a limiting groove is formed on the side of the slider near the limiting block, with the limiting block and the limiting groove being slidably connected.
[0016] The technical effect of adopting the above technical solution is that the limiting block and the limiting groove are engaged to limit the slider and prevent the slider from separating from the slide rail.
[0017] In a preferred embodiment, a motor is fixedly connected to the side of the housing away from the sealing plate, and the output end of the motor is engaged with the rotating shaft.
[0018] The technical effect of adopting the above technical solution is that the sealing plate drives the rotating shaft to move away from the motor. At this time, the rotating shaft separates from the output end of the motor, thereby ensuring that the sealing plate can be separated from the outer casing.
[0019] In a preferred embodiment, the feeding assembly includes a feed inlet, which is fixedly connected to the slide rail on the side near the inner filter screen.
[0020] The technical effect of adopting the above technical solution is to ensure that when the drug enters the interior of the shell from the inlet, the drug can only enter the interior of the inner filter first.
[0021] In a preferred embodiment, a hydraulic telescopic rod is fixedly connected to the side of the feed inlet away from the sealing plate, a push plate is slidably connected inside the feed inlet, and the output end of the hydraulic telescopic rod is fixedly connected to the push plate.
[0022] The technical effect of adopting the above technical solution is that it facilitates the feeding of drugs and prevents drugs from accumulating inside the feed inlet and from clogging the feed inlet.
[0023] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0024] 1. By setting up a grinding assembly, the motor drives the rotating shaft to rotate. The rotating shaft drives the grinding roller to rotate on the inner surface of the outer filter screen through the connecting plate and the telescopic plate. When the grinding roller contacts the protrusion on the outer filter screen, the grinding roller is forced to compress the spring sheet by the telescopic plate, causing the telescopic plate to retract inside the spring sheet. When the grinding roller separates from the protrusion on the outer filter screen, the compressed spring sheet begins to extend and pushes the grinding roller to fit against the inner surface of the outer filter screen through the telescopic plate. This increases the collision and friction opportunities between drug particles and between drug particles and the outer filter screen. When grinding drugs with high hardness, the drug particles roll and collide on the corrugated filter screen, which can be broken more effectively and improve grinding efficiency.
[0025] 2. By setting up a pretreatment component, the drug is fed into the inner filter through the feed port. Then, the motor is started, causing the rotating shaft to drive the grinding blade to rotate. The grinding blade and the scraper work together to break and grind the drug into smaller particles or fragments. The drug in this way is then fed into the inner filter for subsequent fine grinding. This pretreatment helps to improve the speed and efficiency of the entire grinding device. Attached Figure Description
[0026] Figure 1 A schematic diagram of the structure of a pharmaceutical grinding device provided by this utility model;
[0027] Figure 2 A schematic diagram of the pretreatment component in a pharmaceutical drug grinding device provided by this utility model;
[0028] Figure 3 A schematic diagram of the grinding component in a pharmaceutical drug grinding device provided by this utility model;
[0029] Figure 4 A split view of the connecting plate in a pharmaceutical grinding device provided by this utility model;
[0030] Figure 5 A schematic diagram of the moving components in a pharmaceutical grinding device provided by this utility model.
[0031] Legend:
[0032] 1. Base;
[0033] 2. Grinding assembly; 21. Housing; 22. External filter screen; 23. Rotating shaft; 24. Grinding roller; 25. Connecting plate; 26. Telescopic plate; 27. Motor; 28. Spring; 29. Filter hole;
[0034] 3. Moving components; 31. Slide rail; 32. Slider; 33. Sealing plate; 34. Limiting block; 35. Limiting groove;
[0035] 4. Feeding assembly; 41. Feed inlet; 42. Hydraulic telescopic rod; 43. Push plate;
[0036] 5. Pretreatment components; 51. Inner filter; 52. Grinding blade; 53. Scraper. Detailed Implementation
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0038] Example 1
[0039] like Figure 1 - Figure 4As shown, this embodiment provides a technical solution: a pharmaceutical grinding device, including a base 1 and a feeding component 4. A grinding component 2 is disposed on the base 1, a pretreatment component 5 is disposed inside the grinding component 2, a movable component 3 is disposed on the grinding component 2, and the feeding component 4 is disposed on the movable component 3.
[0040] The grinding assembly 2 includes a housing 21 and an outer filter 22. The housing 21 is fixedly connected to the base 1. The outer filter 22 is disposed inside the housing 21 and has a wavy annular structure. A rotating shaft 23 is rotatably connected between the housing 21 and the outer filter 22. A connecting plate 25 is fixedly connected to one end of the rotating shaft 23 near the outer filter 22. A telescopic plate 26 is slidably connected to the side of the connecting plate 25 away from the rotating shaft 23. A spring piece 28 is fixedly connected between the telescopic plate 26 and the connecting plate 25. A grinding roller 24 is rotatably connected to the side of the telescopic plate 26 near the outer filter 22. The grinding roller 24 is drivenly connected to the outer filter 22. When the medicine is fed into the inner side of the outer filter 22, the motor 27 is started. The motor 27 drives the rotating shaft 23 to rotate. The rotating shaft 23 drives the grinding roller 24 to rotate along the inner surface of the outer filter 22 through the connecting plate 25 and the telescopic plate 26, so that the grinding roller 24... The grinding roller 24 rotates, moves, and grinds the drug continuously inside the outer filter 22. Because the outer filter 22 has a wavy, ring-shaped structure, when the grinding roller 24 contacts the protrusions on the outer filter 22, the grinding roller 24 is forced to compress the elastic sheet 28 by the telescopic plate 26, causing the telescopic plate 26 to retract inside the connecting plate 25. After the grinding roller 24 separates from the protrusions on the outer filter 22, the compressed elastic sheet 28 begins to extend and pushes the grinding roller 24 to adhere to the inner surface of the outer filter 22 through the telescopic plate 26. This increases the collision and friction opportunities between drug particles and between drug particles and the outer filter 22. Furthermore, when grinding drugs with high hardness, the drug particles roll and collide on the wavy filter with large undulations, which can be broken more effectively. This solves the problem of limited contact area between the grinding roller 24 and the outer filter 22, which is beneficial to improving grinding efficiency.
[0041] Example 2
[0042] To further improve the grinding efficiency of the grinding device, such as Figure 1 - Figure 3As shown, the pretreatment component 5 includes an inner filter screen 51 and a grinding blade 52. The inner filter screen 51 is located inside the outer casing 21 on the side near the outer filter screen 22. The diameter of the inner filter screen 51 is smaller than the diameter of the outer filter screen 22. A grinding blade 52 is fixedly connected to one end of the rotating shaft 23 near the inner filter screen 51. A scraper 53 is fixedly connected to the inside of the grinding blade 52 on the side near the grinding blade 52. Before the drug is fed into the outer filter screen 22, the drug needs to be pretreated. The drug is fed into the inner filter screen 51 through the feed inlet 41. The motor 27 is started, causing the rotating shaft 23 to drive the grinding blade 52 to rotate. The grinding blade 52 and the scraper 53 work together to crush and grind the drug into drug particles before feeding it into the outer filter screen 22. This breaks down the originally large lumps or coarse particles of drug into smaller particles or fragments. In the subsequent grinding process, the grinding device only needs to further refine these smaller particles, which helps to improve the grinding speed of the grinding device.
[0043] Furthermore, such as Figure 1 - Figure 3 As shown, both the outer filter screen 22 and the inner filter screen 51 are provided with filter holes 29. The diameter of the filter holes 29 on the outer filter screen 22 is smaller than the diameter of the filter holes 29 on the inner filter screen 51. By providing filter holes 29 with different pore sizes on the outer filter screen 22 and the inner filter screen 51, the grinding device can gradually refine the particle size of the drug. After the initial coarse grinding, the smaller pore size filter screen is used for further grinding to refine the drug particles to the ideal particle size range, which helps to make the drug particles more uniform in size.
[0044] Furthermore, such as Figure 1 and Figure 5 As shown, the movable component 3 includes a slide rail 31 and a sealing plate 33. The sealing plate 33 is disposed on the outer casing 21 near the outer filter 22 and the inner filter 51. The outer filter 22, the inner filter 51, and the sealing plate 33 are fixedly connected. The sealing plate 33 is rotatably connected to the rotating shaft 23. The slide rail 31 is fixedly connected to the outer casing 21 near the sealing plate 33. A slider 32 is slidably connected inside the slide rail 31 near the sealing plate 33. The slider 32 is fixedly connected to the sealing plate 33. The grinding device grinds the drug. After grinding the drug, the outer filter needs to be removed. Clean the inner filter screen 51 and push the sealing plate 33. The sealing plate 33 moves along the slide rail 31 via the slider 32, pulling the inner filter screen 51 and the outer filter screen 22 out of the housing 21. Then, use external clean water to rinse the outer filter screen 22, the inner filter screen 51, the grinding roller 24, and the grinding blade 52, which facilitates the cleaning of the grinding device and improves the cleaning efficiency. After cleaning, push the sealing plate 33 again to seal the sealing plate 33 with the housing 21. Then, use bolts to fix the housing 21 and the sealing plate 33 to complete the installation.
[0045] Furthermore, such as Figure 5 As shown, a limiting block 34 is fixedly connected to the side of the slide rail 31 near the slider 32. A limiting groove 35 is formed on the side of the slider 32 near the limiting block 34. The limiting block 34 and the limiting groove 35 are slidably connected. By installing the limiting block 34 on the housing 21, when the sealing plate 33 drives the slider 32 to slide, the slider 32 slides along the limiting block 34 through the limiting groove 35. The limiting block 34 and the slide rail 31 cooperate to support the slider 32. After the slider 32 moves a certain distance, the limiting block 34 and the limiting groove 35 engage to limit the slider 32 and prevent the slider 32 from separating from the slide rail 31.
[0046] Furthermore, such as Figure 5 As shown, a motor 27 is fixedly connected to the side of the outer casing 21 away from the sealing plate 33. The output end of the motor 27 is engaged with the rotating shaft 23. By opening an inner groove on the rotating shaft 23 that matches the output end of the motor 27, when the sealing plate 33 is sealed with the outer casing 21, the rotating shaft 23 is engaged with the output end of the motor 27 through the inner groove. When the sealing plate 33 is separated from the outer casing 21, the sealing plate 33 drives the rotating shaft 23 to move away from the motor 27. At this time, the rotating shaft 23 is separated from the output end of the motor 27, thereby ensuring that the sealing plate 33 can be separated from the outer casing 21.
[0047] Furthermore, such as Figure 1 and Figure 5 As shown, the feeding assembly 4 includes a feeding port 41, which is fixedly connected to the slide rail 31 on the side near the inner filter screen 51. By installing the feeding port 41 on the side near the inner filter screen 51, the drug is fed into the interior of the housing 21 through the feeding port 41, ensuring that when the drug enters the interior of the housing 21 from the feeding port 41, the drug can only enter the interior of the inner filter screen 51 first.
[0048] Furthermore, such as Figure 5 As shown, a hydraulic telescopic rod 42 is fixedly connected to the side of the feed inlet 41 away from the sealing plate 33. A push plate 43 is slidably connected inside the feed inlet 41. The output end of the hydraulic telescopic rod 42 is fixedly connected to the push plate 43. By activating the hydraulic telescopic rod 42, the hydraulic telescopic rod 42 pushes the push plate 43 to move inside the feed inlet 41, thereby facilitating the feeding of the drug and preventing the drug from accumulating inside the feed inlet 41 and preventing the feed inlet 41 from becoming blocked.
[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A pharmaceutical grinding apparatus, comprising a base (1) and a feeding assembly (4), characterized in that, A grinding component (2) is provided on the base (1), a pretreatment component (5) is provided inside the grinding component (2), a movable component (3) is provided on the grinding component (2), and a feeding component (4) is provided on the movable component (3); The grinding assembly (2) includes a housing (21) and an outer filter (22). The housing (21) is fixedly connected to the base (1). The outer filter (22) is disposed inside the housing (21). The outer filter (22) has a wave-shaped ring structure. A rotating shaft (23) is rotatably connected inside the housing (21) and the outer filter (22). A connecting plate (25) is fixedly connected to one end of the rotating shaft (23) near the outer filter (22). A telescopic plate (26) is slidably connected to the side of the connecting plate (25) away from the rotating shaft (23). A spring piece (28) is fixedly connected between the telescopic plate (26) and the connecting plate (25). A grinding roller (24) is rotatably connected to the side of the telescopic plate (26) near the outer filter (22). The grinding roller (24) is drive-connected to the outer filter (22).
2. The pharmaceutical grinding apparatus according to claim 1, characterized in that: The pretreatment component (5) includes an inner filter (51) and a grinding blade (52). The inner filter (51) is located inside the outer casing (21) on the side near the outer filter (22). The diameter of the inner filter (51) is smaller than the diameter of the outer filter (22). A grinding blade (52) is fixedly connected to one end of the rotating shaft (23) near the inner filter (51). A scraper (53) is fixedly connected to the inside of the grinding blade (52) on the side near the grinding blade (52).
3. The pharmaceutical grinding apparatus according to claim 2, characterized in that: Both the outer filter (22) and the inner filter (51) are provided with filter holes (29), and the diameter of the filter holes (29) on the outer filter (22) is smaller than the diameter of the filter holes (29) on the inner filter (51).
4. A pharmaceutical grinding apparatus according to claim 1, characterized in that: The movable component (3) includes a slide rail (31) and a sealing plate (33). The sealing plate (33) is disposed on one side of the outer shell (21). The outer filter (22), the inner filter (51) and the sealing plate (33) are fixedly connected. The sealing plate (33) is rotatably connected to the rotating shaft (23). The slide rail (31) is fixedly connected to the outer shell (21) on the side near the sealing plate (33). A slider (32) is slidably connected inside the slide rail (31) on the side near the sealing plate (33). The slider (32) is fixedly connected to the sealing plate (33).
5. A pharmaceutical grinding apparatus according to claim 4, characterized in that: A limiting block (34) is fixedly connected to the side of the slide rail (31) near the slider (32), and a limiting groove (35) is opened on the side of the slider (32) near the limiting block (34). The limiting block (34) and the limiting groove (35) are slidably connected.
6. A pharmaceutical grinding apparatus according to claim 5, characterized in that: A motor (27) is fixedly connected to the side of the outer casing (21) away from the sealing plate (33), and the output end of the motor (27) is engaged with the rotating shaft (23).
7. A pharmaceutical grinding apparatus according to claim 1, characterized in that: The feeding assembly (4) includes a feed inlet (41) which is fixedly connected to the slide rail (31) on the side near the inner filter screen (51).
8. A pharmaceutical grinding apparatus according to claim 7, characterized in that: A hydraulic telescopic rod (42) is fixedly connected to the side of the feed inlet (41) away from the sealing plate (33). A push plate (43) is slidably connected inside the feed inlet (41). The output end of the hydraulic telescopic rod (42) is fixedly connected to the push plate (43).