Pharmaceutical pulverizer

Abstract

The utility model discloses a pharmaceutical pulverizer, which belongs to the technical field of pharmaceutical pulverization and is characterized in that a first grinding roller and a second grinding roller are sequentially mounted in a grinding bin from bottom to top, the first grinding roller is erected on a grinding cylinder through a first transmission device, and the second grinding roller is erected on the grinding cylinder through a second transmission device; the first transmission device is connected with the second transmission device in a meshed mode, the first transmission device is connected with the driving assembly, a discharging pipe is arranged at the lower end of the grinding cylinder, medicine powder falls into the grinding bin through the filter screen, the medicine powder is ground through the first grinding roller and the second grinding roller, and then the medicine powder is discharged through the discharging pipe. The crusher has remarkable advantages in the aspects of filtration and blockage prevention. Firstly, due to the design of the drawer type frame and the connecting pipe, the filter screen is more convenient to replace and clean, and the maintenance efficiency of equipment is improved. In addition, the screen can effectively screen medicine powder, the fineness and uniformity of the powder are ensured, and the quality of medicine is further improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical pulverization technology, and in particular to a pharmaceutical pulverizer. Background Technology

[0002] Pharmaceutical pulverizers are mechanical devices specifically designed for the pharmaceutical industry. Their core function is to finely pulverize various raw materials to meet the needs of subsequent production and processing. This equipment primarily uses mechanical force, employing methods such as cutting, shearing, impact, and extrusion, to achieve efficient pulverization based on the material's properties and required particle size.

[0003] However, current pharmaceutical pulverizers on the market still have shortcomings in several aspects. First, the filtration systems of some devices are relatively simple, making it difficult to effectively filter out large particles and impurities in drugs, leading to unstable drug quality. Second, after prolonged use, the filter screen is prone to clogging, reducing pulverization efficiency and even affecting the normal operation of the equipment. Furthermore, the complex design structure makes cleaning and maintenance difficult, increasing maintenance costs and shortening the lifespan of the equipment. Finally, some devices result in uneven particle size distribution of drugs during the pulverization process, affecting the quality and efficacy of the drugs.

[0004] To address these issues, the pharmaceutical industry needs to continuously research and optimize pharmaceutical pulverizers, improving their filtration efficiency, anti-clogging performance, and particle size distribution uniformity. Simultaneously, simplifying the equipment structure and reducing cleaning and maintenance difficulties are also important ways to improve equipment performance and lifespan. Through these improvements, pharmaceutical pulverizers can better meet the needs of the pharmaceutical industry, enhancing drug quality and production efficiency. Utility Model Content

[0005] The main objective of this invention is to provide a pharmaceutical pulverizer that can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A pharmaceutical pulverizer includes a pulverizing cylinder, a sealing cover, a drive device, pulverizing blades, and a feed inlet. The sealing cover is located at the upper end of the pulverizing cylinder, and the drive device is installed at the center of the upper end of the sealing cover. The inner cavity of the pulverizing cylinder is a pulverizing chamber. The output end of the drive device is connected to pulverizing blades and extends into the pulverizing chamber to cut and pulverize the drugs in the pulverizing chamber. The upper port of the pulverizing cylinder is provided with a feed inlet for adding drugs.

[0008] The lower end of the pulverizing cylinder is connected to a connecting cylinder, and the lower end of the connecting cylinder is equipped with a connecting pipe. A drawer-type frame is installed at the opening on the side wall of the connecting pipe, and a filter screen is installed at the bottom of the drawer-type frame. The drug powder in the pulverizing chamber is screened through the filter screen.

[0009] The lower end of the connecting pipe is connected to a grinding cylinder, and the upper end of the grinding cylinder is provided with a grinding chamber. The grinding chamber is equipped with a first grinding roller and a second grinding roller in sequence from bottom to top. The first grinding roller is mounted on the grinding cylinder through a first transmission device, and the second grinding roller is mounted on the grinding cylinder through a second transmission device. The first transmission device and the second transmission device are meshed and connected. The first transmission device is connected to the drive assembly. The lower end of the grinding cylinder is provided with a discharge pipe. The drug powder falls into the grinding chamber through a filter screen, is ground by the first grinding roller and the second grinding roller, and then discharged through the discharge pipe.

[0010] In a further preferred embodiment of this application, the crushing cylinder is threadedly connected to the sealing cover, and a support frame is provided at the upper end of the sealing cover. The drive device is mounted on the support frame by bolts, and the output end of the drive device extends through the sealing cover into the crushing chamber. The crushing blade is mounted on the output end of the drive device by bolts.

[0011] In a further preferred embodiment of this application, the crushing cylinder, connecting cylinder and connecting pipe are designed as a single unit. A rotating roller is mounted inside the connecting pipe. The rotating roller is located at the lower end of the filter screen. The surface of the rotating roller is provided with multiple protrusions. The driving component is connected to the rotating roller through a transmission belt assembly. The driving component drives the rotating roller and its protrusions to rotate. The protrusions lift up the filter screen to prevent clogging.

[0012] In a further preferred embodiment of this application, the inner end of the drawer-type frame is provided with a limiting strip, the limiting strip is embedded in the limiting groove of the inner wall of the connecting pipe, the drawer-type frame and the connecting pipe are fixed by bolts, and the drawer-type frame and the connecting pipe are sealed together.

[0013] In a further preferred embodiment of this application, a bearing device is provided between the first transmission device, the second transmission device and the grinding cylinder, the output end of the drive assembly is fixed to the first transmission device by bolts, the first grinding roller is fixed to the first transmission device by nuts, and the second grinding roller is fixed to the second transmission device by nuts.

[0014] In a further preferred embodiment of this application, the first grinding roller and the second grinding roller contact each other to grind the drug powder, and the first grinding roller contacts the inner wall of the grinding chamber to grind the drug powder.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In this invention, the pulverizer exhibits significant advantages in filtration and anti-clogging. Firstly, its drawer-type frame and connecting pipe design make replacing and cleaning the filter screen much more convenient, thereby greatly improving equipment maintenance efficiency. Furthermore, the screen effectively screens drug powders, ensuring the fineness and uniformity of the powder, further enhancing the quality of the medicine.

[0017] In terms of anti-clogging, the rotating roller and its raised surface design play a crucial role. The rotation of the roller continuously lifts the filter screen, effectively preventing clogging and ensuring the smooth passage of drug powder. This design not only significantly improves screening efficiency but also reduces equipment failure rates caused by clogging, enhancing the stability and reliability of the equipment.

[0018] Furthermore, the addition of grinding equipment significantly enhances the pulverizer's ability to refine drug powders. The fine grinding action of the grinding rollers further refines the drug powder, ensuring its particle size meets pharmaceutical processing requirements. This helps enhance drug efficacy and absorption rates, bringing significant benefits to the pharmaceutical industry.

[0019] Power is transmitted between the grinding equipment and the anti-clogging structure via a drive belt assembly. This design not only simplifies the equipment's structure but also improves the efficiency and stability of power transmission. This results in smoother operation of the entire equipment and reduces the impact of vibration and noise on the working environment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view showing the overall structure of this utility model;

[0022] Figure 3 The diagram shows the crushing cylinder, drawer-type frame, and filter screen of this utility model.

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a display diagram of the grinding cylinder of this utility model.

[0025] In the diagram: 1. Crushing cylinder; 2. Sealing cover; 3. Drive unit; 4. Crushing blade; 5. Feed inlet; 6. Crushing chamber; 8. Connecting cylinder; 9. Connecting pipe; 10. Drawer-type frame; 11. Filter screen; 12. Grinding cylinder; 13. Grinding chamber; 14. Drive assembly; 15. First transmission device; 16. Second transmission device; 17. First grinding roller; 18. Second grinding roller; 19. Discharge pipe; 20. Transmission belt assembly; 21. Rotating roller; 22. Protrusion. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 1 - Figure 5 As shown, a pharmaceutical pulverizer mainly comprises a pulverizing cylinder 1, a sealing cover 2, a drive unit 3, pulverizing blades 4, and a feed inlet 5. This pulverizer is specifically designed for the pharmaceutical industry, aiming to achieve efficient and fine pulverization of drug materials, thereby significantly improving drug efficacy and absorption rate.

[0028] The grinding cylinder 1 serves as the main structure of the equipment, and its interior is meticulously constructed with a grinding chamber 6. This grinding chamber 6 provides the necessary space and environment for grinding the pharmaceutical materials. The sealing cover 2 is cleverly installed at the upper end of the grinding cylinder 1, ensuring good sealing during the grinding process, effectively preventing dust leakage, and ensuring a clean and hygienic operating environment.

[0029] The drive unit 3 is carefully installed at the upper center of the sealing cover 2, providing stable and powerful power support for the crushing blades 4. Driven by the drive unit 3, the crushing blades 4 rotate at high speed to finely cut and crush the drug material in the crushing chamber 6, achieving efficient crushing of the drug material.

[0030] To facilitate the addition of medicinal materials, a feed inlet 5 is specially designed at the upper end of the grinding cylinder 1. This design makes the addition of medicinal materials simple and quick, improving operational efficiency. In addition, the equipment is also equipped with a connecting cylinder 8, which is located at the lower end of the grinding cylinder 1 and serves as a connection and transition.

[0031] The lower end of the connecting cylinder 8 is connected to the connecting pipe 9, which has an opening cleverly designed on its side wall for mounting the drawer-type frame 10. The bottom of the drawer-type frame 10 houses a filter screen 11, a design that precisely filters the pulverized drug powder, ensuring its fineness and uniformity. Simultaneously, the drawer-type frame 10 can be easily removed for cleaning and replacement of the filter screen 11, improving the ease of equipment maintenance.

[0032] The lower end of the connecting pipe 9 is further connected to the grinding cylinder 12, which is a key component for further refining the drug powder. At the upper end of the grinding cylinder 12, a grinding chamber 13 is provided, which provides the necessary space for grinding the drug powder.

[0033] Inside the grinding chamber 13, a first grinding roller 17 and a second grinding roller 18 are installed sequentially from bottom to top. These two grinding rollers are securely mounted on the grinding cylinder 12 via a first transmission device 15 and a second transmission device 16, respectively, and power is transmitted between the two transmission devices through a precise meshing connection. The first transmission device 15 is tightly connected to the drive assembly 14, providing a stable and reliable power source for the grinding rollers.

[0034] After the drug powder falls into the grinding chamber 13 through the filter screen 11, the first grinding roller 17 and the second grinding roller 18 begin to perform fine grinding. The two grinding rollers work together to further refine the drug powder, ensuring that the powder's fineness meets the requirements of the pharmaceutical process.

[0035] The ground drug powder is then smoothly discharged through the discharge pipe 19, completing the entire crushing and grinding process. A valve is installed at the discharge pipe 19, which allows for convenient control of the material discharge speed and amount, achieving precise control of the crushing process.

[0036] Furthermore, to ensure the stability and sealing of the equipment, the crushing cylinder 1 and the sealing cover 2 adopt a high-standard threaded connection, and a support frame is added to the upper end of the sealing cover 2. The drive unit 3 is firmly mounted on the support frame with bolts, ensuring its stability and reliability. At the same time, the output end of the drive unit 3 extends through the sealing cover 2 into the crushing chamber 6, and the crushing blade 4 is firmly fixed thereon with bolts, ensuring the stable operation of the blade.

[0037] To facilitate equipment installation and maintenance, the crushing cylinder 1, connecting cylinder 8, and connecting pipe 9 are designed as a single unit. This not only improves the overall stability of the equipment but also simplifies the installation and maintenance process. Furthermore, a rotating roller 21 is cleverly installed inside the connecting pipe 9. This rotating roller 21 is located at the lower end of the filter screen 11, effectively preventing screen clogging and improving screening efficiency.

[0038] The surface of the rotating roller 21 is provided with multiple protrusions 22. These protrusions 22 can effectively lift the filter screen 11 during the rotation of the rotating roller 21, preventing the screen from clogging. At the same time, the drive assembly 14 is closely connected to the rotating roller 21 through the transmission belt assembly 20, ensuring the stable rotation and efficient operation of the rotating roller 21.

[0039] The inner end of the drawer-type frame 10 is also equipped with a limiting strip, which is precisely embedded in the limiting groove on the inner wall of the connecting pipe 9, ensuring a stable connection between the drawer-type frame 10 and the connecting pipe 9. In addition, the two parts are fixed together by bolts, which further improves their sealing and stability.

[0040] Bearing devices are provided between the first transmission device 15, the second transmission device 16, and the grinding cylinder 12. These bearing devices not only provide stable support for the transmission devices but also ensure smooth and precise transmission. The output end of the drive assembly 14 is fastened to the first transmission device 15 with bolts, ensuring stable power transmission. The first grinding roller 17 and the second grinding roller 18 are respectively and securely fixed to their respective transmission devices with nuts, ensuring the stability and reliability of the grinding rollers.

[0041] Drug pulverization process: The operator feeds the drug material to be pulverized into the pulverizing chamber 6 of the pulverizing cylinder 1 through the feed inlet 5 of the pulverizer; after the drug material enters the pulverizing chamber 6, the drive device 3 starts working, providing power to the pulverizing blades 4; the pulverizing blades 4 cut and crush the drug material under high-speed rotation, initially breaking it into smaller particles; the sealing cover 2 ensures the airtightness of the pulverization process, effectively preventing the leakage of drug dust and maintaining a clean operating environment; the initially crushed drug particles enter the connecting pipe 9 through the connecting cylinder 8; the drug particles fall onto the filter screen 11 inside the drawer-type frame 10. The sieve separates the crushed drug particles from the powder; larger particles are intercepted by the sieve, while finer drug powder continues to fall through the sieve; the drug powder enters the grinding chamber 13 of the grinding cylinder 12; the first grinding roller 17 and the second grinding roller 18 begin to rotate under the drive of the drive assembly 14; the two grinding rollers cooperate with each other to finely grind the drug powder, further refining the particle size of the powder; the ground drug powder is discharged through the discharge pipe 19, and the operator can control the valve to adjust the discharge speed and amount of powder; the discharged drug powder can be collected for subsequent pharmaceutical processes.

[0042] Throughout the pulverizing process, all components of the pulverizer work together to ensure efficient and precise pulverization of the drug material. This pulverizer is designed with the specific needs of the pharmaceutical industry in mind, significantly improving drug efficacy and absorption rates through optimized structure and enhanced performance.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A pharmaceutical pulverizer, comprising a pulverizing cylinder (1), a sealing cover (2), a driving device (3), pulverizing blades (4), and a feed inlet (5), wherein the sealing cover (2) is located at the upper end of the pulverizing cylinder (1), and the driving device (3) is installed at the center of the upper end of the sealing cover (2); the inner cavity of the pulverizing cylinder (1) is a pulverizing chamber (6); the output end of the driving device (3) is connected to the pulverizing blades (4) and extends into the pulverizing chamber (6) to cut and pulverize the drugs in the pulverizing chamber (6); the upper end of the pulverizing cylinder (1) is provided with a feed inlet (5) for adding drugs, characterized in that: The lower end of the pulverizing cylinder (1) is connected to a connecting cylinder (8), and a connecting pipe (9) is installed at the lower end of the connecting cylinder (8). A drawer-type frame (10) is installed at the opening on the side wall of the connecting pipe (9), and a filter screen (11) is installed at the bottom of the drawer-type frame (10). The drug powder in the pulverizing chamber (6) is screened by the filter screen (11). The lower end of the connecting pipe (9) is connected to a grinding cylinder (12), and the upper end of the grinding cylinder (12) is provided with a grinding chamber (13). The grinding chamber (13) is equipped with a first grinding roller (17) and a second grinding roller (18) from bottom to top. The first grinding roller (17) is mounted on the grinding cylinder (12) through a first transmission device (15), and the second grinding roller (18) is mounted on the grinding cylinder (12) through a second transmission device (16). The first transmission device (15) and the second transmission device (16) are meshed and connected. The first transmission device (15) is connected to the drive assembly (14). The lower end of the grinding cylinder (12) is provided with a discharge pipe (19). The drug powder falls into the grinding chamber (13) through the filter screen (11), and is ground by the first grinding roller (17) and the second grinding roller (18), and then discharged through the discharge pipe (19).

2. The pharmaceutical pulverizer according to claim 1, characterized in that: The crushing cylinder (1) is threadedly connected to the sealing cover (2), and a support frame is provided at the upper end of the sealing cover (2). The driving device (3) is installed on the support frame by bolts. The output end of the driving device (3) extends through the sealing cover (2) into the crushing chamber (6), and the crushing blade (4) is installed on the output end of the driving device (3) by bolts.

3. A pharmaceutical pulverizer according to claim 2, characterized in that: The crushing cylinder (1), connecting cylinder (8) and connecting pipe (9) are designed as a single unit. A rotating roller (21) is mounted inside the connecting pipe (9). The rotating roller (21) is located at the lower end of the filter screen (11). The surface of the rotating roller (21) is provided with multiple protrusions (22). The driving component (14) is connected to the rotating roller (21) through the transmission belt component (20). The driving component (14) drives the rotating roller (21) and its protrusions (22) to rotate. The protrusions (22) lift up the filter screen (11) to prevent clogging.

4. A pharmaceutical pulverizer according to claim 3, characterized in that: The inner end of the drawer frame (10) is provided with a limiting strip, which is embedded in the limiting groove of the inner wall of the connecting pipe (9). The drawer frame (10) and the connecting pipe (9) are fixed by bolts, and the drawer frame (10) and the connecting pipe (9) are sealed together.

5. A pharmaceutical pulverizer according to claim 4, characterized in that: A bearing device is provided between the first transmission device (15), the second transmission device (16) and the grinding cylinder (12). The output end of the drive assembly (14) is fixed to the first transmission device (15) by bolts. The first grinding roller (17) is fixed to the first transmission device (15) by nuts, and the second grinding roller (18) is fixed to the second transmission device (16) by nuts.

6. A pharmaceutical pulverizer according to claim 5, characterized in that: The first grinding roller (17) and the second grinding roller (18) grind the drug powder in contact with each other, and the first grinding roller (17) grinds the drug powder in contact with the inner wall of the grinding chamber (13).

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