Grinding device for pharmacy
By leveraging the combined action of the electric two-stage telescopic rod and the drive mechanism, uniform grinding of the drug is achieved, solving the problems of wasted manpower in manual grinding and the unsuitability of large grinding machines, thus improving the efficiency and quality of drug grinding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-10
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, manual grinding is wasteful of manpower and resources, while large grinding machines are not suitable for grinding small amounts of drugs and are not flexible in use.
The electric two-stage telescopic rod drives the grinding block to achieve lifting, pressing and grinding, and in conjunction with the drive component to drive the grinding tank to rotate, it achieves dual action, breaking the limitation of a single grinding direction and ensuring that the drug is in uniform contact with the grinding surface.
It achieves uniform grinding of drug powder, avoids local accumulation and residue at edges, ensures particle size consistency, is suitable for pharmaceutical research and formulation production, and improves drug dissolution rate and efficacy stability.
Smart Images

Figure CN122076557A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pharmaceutical science, and more specifically to a pharmaceutical grinding apparatus. Background Technology
[0002] In pharmaceutical research, drug production, and formulation preparation, drug grinding is a fundamental and crucial process. Its grinding precision and efficiency directly affect the drug's dissolution rate, efficacy, and the stability of subsequent formulations.
[0003] Existing technologies typically employ manual grinding or large grinding machines for grinding. However, manual grinding wastes manpower and resources, while large grinding machines are unsuitable for grinding small quantities of drugs and are very inflexible in use.
[0004] Therefore, it is very necessary to provide a pharmaceutical grinding device to solve the above-mentioned technical problems. Summary of the Invention
[0005] Based on the above description, the present invention provides a pharmaceutical grinding device to solve the problems of existing technologies that typically use manual grinding or large grinding machines for grinding, but manual grinding wastes manpower and resources, and large grinding machines are not suitable for grinding small amounts of drugs and are very inflexible in use.
[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A pharmaceutical grinding device includes a support base, a tamping rod frame connected to the support base, a grinding jar provided at the lower part of the tamping rod frame, an electric two-stage telescopic rod connected to the upper part of the tamping rod frame, a grinding block connected to the telescopic end of the electric two-stage telescopic rod, and the electric two-stage telescopic rod is used to drive the grinding block to extend and retract, so as to grind the drug in the grinding jar; a driving member is connected between the tamping rod frame and the grinding jar, and the driving member is used to drive the grinding jar to rotate.
[0007] Furthermore, the telescopic end of the electric secondary telescopic rod is connected to a grinding rotation motor, and the rotating end of the grinding rotation motor is connected to the grinding block.
[0008] Furthermore, the driving component includes two fixed columns connected to the tamping rod frame. The two fixed columns are symmetrically arranged and a tank motor is connected between the two fixed columns. A motor gear is connected to the rotating end of the tank motor. A tank rack is connected to the grinding tank, and the motor gear is connected to the tank rack gear.
[0009] Furthermore, a controller is connected to the tamping rod frame, and the controller is electrically connected to the electric secondary telescopic rod and the tank motor.
[0010] Furthermore, the grinding jar is spherically shaped, and the rack of the jar body is arc-shaped and connected to the bottom of the grinding jar.
[0011] Furthermore, each of the two fixed columns is connected to an auxiliary fixing frame, which is respectively connected to both sides of the tank motor.
[0012] Furthermore, an arc-shaped track connects the rack and pinion of the tank to the grinding tank, and a sliding connecting block is connected to the fixed column, with the arc-shaped track and the sliding connecting block being slidably connected.
[0013] Furthermore, a support pad is connected to the bottom of the support base.
[0014] Furthermore, the support pad is made of rubber.
[0015] Furthermore, a discharge valve is connected to the grinding jar.
[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: This system employs a dual-action approach: a two-stage electric telescopic rod drives the grinding blocks to achieve lifting, pressing, and grinding, while a drive unit rotates the grinding jar. This overcomes the limitations of a single grinding direction. During grinding, the rotation of the grinding jar causes the internal drug to continuously tumble and reposition, ensuring that each portion of the drug material makes uniform contact with the grinding surface of the grinding blocks. This effectively avoids uneven grinding caused by localized drug accumulation or residue at edges, ensuring consistent particle size in the final product. This synergistic grinding method is particularly suitable for pharmaceutical research and formulation production where high fineness of drug powder is required. It provides high-quality raw materials for subsequent drug dissolution, mixing, and formulation, indirectly ensuring the drug's dissolution rate and efficacy stability. This method solves the problems of existing technologies that typically use manual grinding or large grinding machines, which are wasteful of manpower and resources, and large grinding machines are unsuitable for grinding small quantities of drugs, making them inflexible. Attached Figure Description
[0017] Figure 1 This is one of the overall structural schematic diagrams of a pharmaceutical grinding device provided in an embodiment of the present invention; Figure 2 This is a second schematic diagram of the overall structure of a pharmaceutical grinding device provided in an embodiment of the present invention; Figure 3 This is one of the partial cross-sectional structural schematic diagrams of a pharmaceutical grinding device provided in an embodiment of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point Q; Figure 5 This is a second partial cross-sectional structural schematic diagram of a pharmaceutical grinding device provided in an embodiment of the present invention; Figure 6 for Figure 5Enlarged structural diagram at point W; Figure 7 This is the third partial cross-sectional structural schematic diagram of a pharmaceutical grinding device provided in an embodiment of the present invention; Figure 8 for Figure 7 A magnified structural diagram at point E in the middle.
[0018] The attached diagram lists the components represented by each number as follows: 100. Support base; 200. Tamping rod frame; 300. Grinding tank; 400. Electric two-stage telescopic rod; 500. Grinding block; 600. Drive component; 700. Grinding rotation motor; 800. Fixed column; 900. Tank motor; 1000. Motor gear; 1100. Tank rack; 1200. Controller; 1300. Auxiliary fixing frame; 1400. Arc track; 1500. Sliding connecting block; 1600. Support pad; 1700. Discharge valve. Detailed Implementation
[0019] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0021] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.
[0022] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.
[0023] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.
[0024] like Figures 1 to 8 As shown, a pharmaceutical grinding device includes a support base 100, a tamping rod frame 200 connected to the support base 100, a grinding jar 300 located at the lower part of the tamping rod frame 200, and an electrically operated secondary telescopic rod 400 connected to the upper part of the tamping rod frame 200. A grinding block 500 is connected to the telescopic end of the electrically operated secondary telescopic rod 400. The electrically operated secondary telescopic rod 400 is used to drive the grinding block 500 to extend and retract, thereby grinding the drug in the grinding jar 300. A driving component 600 is connected between the tamping rod frame 200 and the grinding jar 300, and the driving component 600 is used to drive the grinding jar 300 to rotate.
[0025] In this embodiment, an electric two-stage telescopic rod 400 drives the grinding block 500 to achieve lifting, pressing, and grinding, while the drive component 600 drives the grinding jar 300 to rotate, breaking the limitation of a single grinding direction. During the grinding process, the rotation of the grinding jar 300 causes the internal drug to continuously tumble and reposition, ensuring that each portion of drug raw material can evenly contact the pressing and grinding surface of the grinding block 500. This effectively avoids uneven grinding caused by local accumulation of drug and residue at edges, ensuring the uniformity of the particle size of the final grinding product. This synergistic grinding method is particularly suitable for pharmaceutical research and formulation production scenarios with high requirements for drug powder fineness. It can provide high-quality raw materials for subsequent drug dissolution, mixing, and formulation forming, indirectly ensuring the drug's dissolution rate and efficacy stability.
[0026] In some embodiments, the telescopic end of the electric secondary telescopic rod 400 is connected to a grinding rotation motor 700, and the rotating end of the grinding rotation motor 700 is connected to the grinding block 500.
[0027] In this embodiment, the telescopic end of the electric secondary telescopic rod 400 is also connected to a grinding rotation motor 700, which can drive the grinding block 500 to rotate, forming a triple collaborative grinding mode of grinding block rotation, lifting and pressing, and grinding tank rotation, further enhancing the grinding effect.
[0028] In some embodiments, the driving component 600 includes two fixed columns 800 connected to the tamping rod frame 200, the two fixed columns 800 are provided and arranged symmetrically, a tank motor 900 is connected between the two fixed columns 800, a motor gear 1000 is connected to the rotating end of the tank motor 900, a tank rack 1100 is connected to the grinding tank 300, and the motor gear 1000 is geared to the tank rack 1100.
[0029] In this embodiment, the drive unit 600 specifically supports the tank motor 900 through two fixed columns 800 symmetrically connected to the tamping rod frame 200. The tank motor 900 drives the motor gear 1000, which drives the grinding tank 300 to rotate through meshing with the tank rack 1100 on the grinding tank 300. The precision of the gear transmission can ensure that the grinding tank 300 has a stable rotation speed and controllable direction.
[0030] In some embodiments, a controller 1200 is connected to the tamping rod frame 200, and the controller 1200 is electrically connected to the electric secondary telescopic rod 400 and the tank motor 900.
[0031] In this embodiment, the controller 1200 is used to control the electric secondary telescopic rod 400 and the tank motor 900.
[0032] In some embodiments, the grinding jar 300 is spherically shaped, and the jar rack 1100 is arc-shaped and connected to the bottom of the grinding jar 300.
[0033] In this embodiment, the grinding jar 300 is spherically shaped, and the arc-shaped jar rack 1100 is connected to the bottom of the grinding jar 300, thereby driving the grinding jar 300 to rotate back and forth in the arc direction.
[0034] In some embodiments, each of the two fixed columns 800 is connected to an auxiliary fixing frame 1300, and the two auxiliary fixing frames 1300 are respectively connected to both sides of the tank motor 900.
[0035] In this embodiment, the auxiliary fixing frame 1300 is used to make the tank motor 900 and the fixing column 800 more securely connected.
[0036] In some embodiments, an arc-shaped track 1400 is connected between the rack 1100 and the grinding tank 300, and a sliding connecting block 1500 is connected to the fixed column 800, with the arc-shaped track 1400 and the sliding connecting block 1500 being slidably connected.
[0037] In this embodiment, the arc-shaped track 1400 is slidably connected to the sliding connecting block 1500, which can further ensure that the grinding jar 300 can rotate more stably.
[0038] In some embodiments, a support pad 1600 is connected to the bottom of the support base 100.
[0039] In some embodiments, the support pad 1600 is made of rubber.
[0040] In some embodiments, a discharge valve 1700 is connected to the grinding jar 300.
[0041] In this embodiment, the feeding valve 1700 is used to feed the drug after grinding is completed.
[0042] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: This system employs a dual-action approach: a two-stage electric telescopic rod drives the grinding blocks to achieve lifting, pressing, and grinding, while a drive unit rotates the grinding jar. This overcomes the limitations of a single grinding direction. During grinding, the rotation of the grinding jar causes the internal drug to continuously tumble and reposition, ensuring that each portion of the drug material makes uniform contact with the grinding surface of the grinding blocks. This effectively avoids uneven grinding caused by localized drug accumulation or residue at edges, ensuring consistent particle size in the final product. This synergistic grinding method is particularly suitable for pharmaceutical research and formulation production where high fineness of drug powder is required. It provides high-quality raw materials for subsequent drug dissolution, mixing, and formulation, indirectly ensuring the drug's dissolution rate and efficacy stability. This method solves the problems of existing technologies that typically use manual grinding or large grinding machines, which are wasteful of manpower and resources, and large grinding machines are unsuitable for grinding small quantities of drugs, making them inflexible.
[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 pharmaceutical grinding apparatus, characterized in that, The device includes a support base (100), characterized in that a tamping rod frame (200) is connected to the support base (100), a grinding jar (300) is provided at the lower part of the tamping rod frame (200), an electric secondary telescopic rod (400) is connected to the upper part of the tamping rod frame (200), a grinding block (500) is connected to the telescopic end of the electric secondary telescopic rod (400), the electric secondary telescopic rod (400) is used to drive the grinding block (500) to telescopically extend and retract, so as to grind the medicine in the grinding jar (300); a driving member (600) is connected between the tamping rod frame (200) and the grinding jar (300), the driving member (600) is used to drive the grinding jar (300) to rotate.
2. The pharmaceutical grinding apparatus according to claim 1, characterized in that, The telescopic end of the electric secondary telescopic rod (400) is connected to a grinding rotary motor (700), and the rotating end of the grinding rotary motor (700) is connected to the grinding block (500).
3. The pharmaceutical grinding apparatus according to claim 1, characterized in that, The driving component (600) includes two fixed columns (800) connected to the tamping rod frame (200), which are symmetrically arranged. A tank motor (900) is connected between the two fixed columns (800). A motor gear (1000) is connected to the rotating end of the tank motor (900). A tank rack (1100) is connected to the grinding tank (300), and the motor gear (1000) is geared to the tank rack (1100).
4. A pharmaceutical grinding apparatus according to claim 3, characterized in that, A controller (1200) is connected to the tamping rod frame (200), and the controller (1200) is electrically connected to the electric secondary telescopic rod (400) and the tank motor (900).
5. A pharmaceutical grinding apparatus according to claim 3, characterized in that, The grinding jar (300) is spherically shaped, and the rack (1100) of the jar body is arc-shaped and connected to the bottom of the grinding jar (300).
6. A pharmaceutical grinding apparatus according to claim 3, characterized in that, Each of the two fixed columns (800) is connected to an auxiliary fixing frame (1300), and the two auxiliary fixing frames (1300) are respectively connected to both sides of the tank motor (900).
7. A pharmaceutical grinding apparatus according to claim 3, characterized in that, An arc-shaped track (1400) connects the rack (1100) of the tank body to the grinding tank (300), and a sliding connecting block (1500) is connected to the fixed column (800). The arc-shaped track (1400) and the sliding connecting block (1500) are slidably connected.
8. A pharmaceutical grinding apparatus according to claim 1, characterized in that, The bottom of the support base (100) is connected to a support pad (1600).
9. A pharmaceutical grinding apparatus according to claim 8, characterized in that, The support pad (1600) is made of rubber.
10. A pharmaceutical grinding apparatus according to claim 1, characterized in that, The grinding jar (300) is connected to a discharge valve (1700).