A grinding device for pharmaceutical production

By integrating mixing and filtering functions into the drug grinding device, the problem of transporting and mixing drugs after grinding is solved, enabling immediate mixing after drug grinding, reducing time waste and drug loss, and improving production efficiency and drug uniformity.

CN224405210UActive Publication Date: 2026-06-26SHANGHAI CHANGSHAOSONG PHARM (XIANGCHENG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI CHANGSHAOSONG PHARM (XIANGCHENG) CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing drug grinding equipment requires the drugs to be removed and transported to other workbenches for mixing after grinding, resulting in wasted time and drug loss.

Method used

A grinding device for drug production was designed, which integrates a mixing function. The device uses a motor-driven connecting shaft to drive a rotating shaft to mix drugs, and is equipped with a filter plate to screen particle diameter, thus avoiding loss during drug removal and transportation.

Benefits of technology

This technology enables immediate mixing after drug grinding, reducing wasted time and drug loss, and improving production efficiency and drug uniformity.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224405210U_ABST
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Abstract

The utility model belongs to the technical field of medicine production grinding, and disclose a kind of grinding device for medicine production, including box, the inboard bottom of box is fixedly arranged with mixing bucket, the top of mixing bucket is fixedly arranged with fixed frame, the top of fixed frame is provided with mixing assembly, and the mixing assembly includes motor fixedly arranged in the top of fixed frame, the main shaft end of motor is fixedly arranged with connecting shaft, the bottom of connecting shaft is fixedly arranged with fixed base, the bottom of fixed base is fixedly arranged with rotating shaft, the bottom of mixing bucket one side is fixedly arranged with discharge pipe, and discharge pipe penetrates box, by above-mentioned scheme, the problem of single function of medicine grinding device is solved, through the mixing device of bottom, medicine can be directly mixed, without being taken out from the inside of grinding device, then mixed again, reduce the time of taking out medicine and transporting medicine, also avoid medicine loss.
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Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical grinding technology, specifically a grinding device for pharmaceutical production. Background Technology

[0002] Pharmaceutical grinding equipment is a specialized device used to pulverize active pharmaceutical ingredients, excipients, or intermediates to a target particle size to ensure the homogeneity, solubility, stability, and bioavailability of the drug. It is a key piece of equipment in pharmaceutical processes and is widely used in solid dosage forms, traditional Chinese medicine extraction, and biopharmaceuticals.

[0003] Some existing drug grinding devices have relatively simple functions. After grinding the drugs, they need to be transported to other workbenches for mixing, grading, and other tasks. This not only wastes transportation time, but also causes a certain amount of drug loss during transportation.

[0004] Meanwhile, application number CN 219849778 U discloses a grinding device for producing digestive drugs, comprising: a grinding body, digestive drug raw materials are fed into the grinding body, a crushing roller, a drive motor is fixed at the left end of the grinding body, the drive motor is connected to a lead screw through a rotating shaft, the lead screw is connected to a crushing roller through a drive block, a material holding frame is provided at the lower end of the crushing roller, a second motor is connected to the left end of the material holding frame through a rotating shaft, and a second electric push rod is connected to the second motor through a fixed block.

[0005] However, the following problems were found in the implementation of the relevant technology: after grinding the drug, the drug needs to be taken out from its interior and then transported to other places for further processing. This not only wastes time, but also causes a certain amount of drug loss. Utility Model Content

[0006] To address the problems mentioned in the background section, this invention provides a grinding device for pharmaceutical production, which offers the advantage of drug mixing. This invention solves the problem of single-function drug grinding devices. Through the mixing device at the bottom, drugs can be directly mixed without having to remove them from the grinding device for further mixing, thus reducing the time spent removing and transporting drugs and avoiding drug loss.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for drug production, comprising a housing, a mixing drum fixedly disposed on the bottom inner side of the housing, a fixing frame fixedly disposed on the top surface of the mixing drum, a mixing assembly disposed on the top of the fixing frame, and the mixing assembly including a motor fixedly disposed on the top surface of the fixing frame.

[0008] A connecting shaft is fixedly installed at the end of the motor's main shaft, a fixed seat is fixedly installed on the bottom surface of the connecting shaft, and a rotating shaft is fixedly installed on the bottom surface of the fixed seat.

[0009] Preferably, a discharge pipe is fixedly provided on one side of the bottom surface of the mixing tank, and the discharge pipe penetrates the tank body.

[0010] Preferably, a mounting base is fixedly provided on the outer side of the housing, a motor is fixedly provided on the top surface of the mounting base, a gear is fixedly provided at the end of the main shaft of the motor, and another gear meshes with the outer side of the gear. A long shaft is fixedly provided on the outer side of the plurality of gears, and a crushing roller is fixedly provided on the outer side of the long shaft.

[0011] Preferably, a baffle is fixedly installed inside the housing, and the gear is located on the outside of the baffle.

[0012] Preferably, the bottom surface of the crushing roller is provided with a filter plate, and the filter plate penetrates through the box and is fixedly connected to the box.

[0013] Preferably, the bottom surface of the filter plate is fixedly provided with an arc-shaped channel, and the bottom end of the arc-shaped channel is located inside the top of the mixing tank.

[0014] Preferably, a reinforcing block is rotatably connected to the outer side of the middle part of the connecting shaft, and the reinforcing block is fixedly connected to the arc-shaped channel.

[0015] Preferably, a feed inlet is fixedly provided on the top surface of the box body, and the feed inlet is located in the middle of multiple crushing rollers.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model uses a motor to drive a connecting shaft, which is reinforced by a reinforcing block. The connecting shaft drives a fixed seat, which in turn drives a rotating shaft. The rotating shaft then begins to mix the various drugs inside, solving the problem of the single function of the drug grinding device. Through the mixing device at the bottom, the drugs can be mixed directly without having to remove them from the grinding device and then mix them, reducing the time spent removing and transporting the drugs, and also avoiding drug loss.

[0018] 2. This utility model filters the ground medicine through a filter plate. Particles with the required diameter will pass directly through the filter plate, while those that do not will be filtered out and then rolled to the outside of the device along the slope of the filter plate. By filtering the medicine, larger particles are prevented from mixing in and affecting its subsequent use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the box body of this utility model;

[0021] Figure 3 This is a schematic diagram of the gear mounting structure of this utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the mixing tank of this utility model;

[0023] Figure 5 This is a schematic diagram of the hybrid component structure of this utility model.

[0024] In the diagram: 1. Box body; 2. Mixing tank; 3. Fixture;

[0025] 4. Mixing assembly; 401. Motor; 402. Connecting shaft; 403. Mounting base; 404. Rotating shaft;

[0026] 5. Reinforcing block; 6. Discharge pipe; 7. Mounting base; 8. Motor; 9. Gear; 10. Long shaft; 11. Crushing roller; 12. Baffle; 13. Filter plate; 14. Arc-shaped channel; 15. Feed inlet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 5 As shown, this utility model provides a grinding device for pharmaceutical production, including a housing 1. A mixing tank 2 is fixedly installed on the bottom inner side of the housing 1. A fixing frame 3 is fixedly installed on the top surface of the mixing tank 2. A mixing component 4 is installed on the top of the fixing frame 3. The mixing component 4 includes a motor 401 fixedly installed on the top surface of the fixing frame 3.

[0029] A connecting shaft 402 is fixedly installed at the end of the main shaft of the motor 401. A fixed seat 403 is fixedly installed on the bottom surface of the connecting shaft 402. A rotating shaft 404 is fixedly installed on the bottom surface of the fixed seat 403. The motor 401 drives the connecting shaft 402, which is reinforced by the reinforcing block 5. The connecting shaft 402 drives the fixed seat 403, which in turn drives the rotating shaft 404. The rotating shaft 404 then begins to mix the various drugs inside, solving the problem of the single function of the drug grinding device. Through the mixing device at the bottom, the drugs can be mixed directly without having to remove them from the grinding device and mix them again, reducing the time for removing and transporting drugs and avoiding drug loss.

[0030] Specifically, a discharge pipe 6 is fixedly installed on one side of the bottom of the mixing tank 2, and the discharge pipe 6 penetrates through the box body 1. The mixed medicine will be taken out from the position of the discharge pipe 6.

[0031] Furthermore, a mounting base 7 is fixedly installed on the outer side of the housing 1, a motor 8 is fixedly installed on the top surface of the mounting base 7, a gear 9 is fixedly installed at the end of the main shaft of the motor 8, and another gear 9 meshes with the outer side of the gear 9. A long shaft 10 is fixedly installed on the outer side of the multiple gears 9, and a crushing roller 11 is fixedly installed on the outer side of the long shaft 10. The medicine can be ground by rotating the crushing rollers 11 on both sides.

[0032] Furthermore, a baffle 12 is fixedly installed inside the housing 1, and the gear 9 is located on the outside of the baffle 12. The baffle 12 isolates the grinding area and the workpiece area to prevent the workpiece from contaminating the medicine.

[0033] It is worth noting that a filter plate 13 is provided on the bottom surface of the crushing roller 11, and the filter plate 13 penetrates through the box body 1 and is fixedly connected to the box body 1. The ground medicine is filtered through the filter plate 13. The particles with the required diameter will pass directly through the filter plate 13, while the particles that do not meet the requirements will be filtered out by the filter plate 13. Then, the particles roll out to the outside of the device along the slope of the filter plate 13. By filtering the medicine, larger particles are prevented from mixing in and affecting its subsequent use effect.

[0034] It is worth noting that an arc-shaped channel 14 is fixedly provided on the bottom surface of the filter plate 13, and the bottom end of the arc-shaped channel 14 is located inside the top of the mixing tank 2. The medicine directly enters the interior of the mixing tank 2 through the channel inside the arc-shaped channel 14, preventing it from running to other places when falling, thus reducing the loss of medicine.

[0035] It is worth mentioning that a reinforcing block 5 is rotatably connected to the outer side of the middle part of the connecting shaft 402, and the reinforcing block 5 is fixedly connected to the arc-shaped channel 14. The reinforcing block 5 can increase the stability of the connecting shaft 402 and prevent it from shaking.

[0036] It is worth emphasizing that the top surface of the box 1 is fixedly provided with a feed inlet 15, and the feed inlet 15 is located in the middle of the plurality of crushing rollers 11.

[0037] Among them, motor 401 and motor 8 are existing technologies and will not be described in detail; at the same time, this utility model also includes a power supply, controller and switch, etc., which are not the main technical points of this patent and will not be described in detail; the "front, back, left and right" perspectives of this device are as follows: Figure 1 The direction shown in the diagram is the reference.

[0038] Working principle:

[0039] When using the grinding device for pharmaceutical production, firstly, various pharmaceutical raw materials to be ground are fed into the housing 1 through the feed inlet 15. Then, the motor 8 on the top surface of the mounting base 7 is turned on. The motor 8 drives the gear 9, which in turn drives the crushing rollers 11 via the long shaft 10. The crushing rollers 11 on both sides crush the pharmaceutical raw materials as they rotate. The baffle 12 separates the gear 9 from the grinding area, preventing contamination from contact between the pharmaceutical materials and the gear 9. The ground pharmaceutical materials fall onto the top surface of the filter plate 13; any unsuitable materials are filtered out and then roll down the filter plate 13 to the outermost edge. Finally, the larger particles are removed. The particles are collected and then ground again. Particles that meet the diameter requirements fall into the arc-shaped channel 14 and then into the mixing tank 2. The motor 401 in the mixing assembly 4 is then turned on. The motor 401 is mounted on the top surface of the mixing tank 2 by the fixing bracket 3. The motor 401 drives the connecting shaft 402, which is reinforced by the reinforcing block 5. The connecting shaft 402 drives the fixing seat 403, which drives the rotating shaft 404. The rotating shaft 404 begins to mix the various drugs inside. Finally, the mixed drugs are sucked out from the discharge pipe 6.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grinding apparatus for pharmaceutical production, comprising a housing (1), characterized in that: A mixing tank (2) is fixedly installed on the bottom inner side of the housing (1). A fixing frame (3) is fixedly installed on the top surface of the mixing tank (2). A mixing component (4) is installed on the top of the fixing frame (3). The mixing component (4) includes a motor (401) fixedly installed on the top surface of the fixing frame (3). A connecting shaft (402) is fixedly installed at the end of the main shaft of the motor (401), a fixed seat (403) is fixedly installed on the bottom surface of the connecting shaft (402), and a rotating shaft (404) is fixedly installed on the bottom surface of the fixed seat (403).

2. The grinding apparatus for pharmaceutical production according to claim 1, characterized in that: A discharge pipe (6) is fixedly installed on one side of the bottom surface of the mixing tank (2), and the discharge pipe (6) penetrates the box body (1).

3. The grinding apparatus for pharmaceutical production according to claim 1, characterized in that: A mounting base (7) is fixedly provided on the outer side of the housing (1). A motor (8) is fixedly provided on the top surface of the mounting base (7). A gear (9) is fixedly provided at the end of the main shaft of the motor (8). Another gear (9) meshes with the outer side of the gear (9). A long shaft (10) is fixedly provided on the outer side of the multiple gears (9). A crushing roller (11) is fixedly provided on the outer side of the long shaft (10).

4. The grinding apparatus for pharmaceutical production according to claim 1, characterized in that: A baffle (12) is fixedly installed inside the housing (1), and the gear (9) is located on the outside of the baffle (12).

5. A grinding apparatus for pharmaceutical production according to claim 3, characterized in that: The bottom surface of the crushing roller (11) is provided with a filter plate (13), and the filter plate (13) penetrates through the box body (1) and is fixedly connected to the box body (1).

6. A grinding apparatus for pharmaceutical production according to claim 5, characterized in that: The bottom surface of the filter plate (13) is fixedly provided with an arc-shaped channel (14), and the bottom end of the arc-shaped channel (14) is located inside the top of the mixing tank (2).

7. A grinding apparatus for pharmaceutical production according to claim 1, characterized in that: A reinforcing block (5) is rotatably connected to the outer side of the middle part of the connecting shaft (402), and the reinforcing block (5) is fixedly connected to the arc-shaped channel (14).

8. A grinding apparatus for pharmaceutical production according to claim 1, characterized in that: The top surface of the box (1) is fixedly provided with a feed inlet (15), and the feed inlet (15) is located in the middle of multiple crushing rollers (11).