Device for uniformly swinging and granulating medicines

Abstract

The utility model discloses a device for uniformly swinging and granulating medicines, relates to the technical field of medicine processing, and aims to solve the problem that residual powder of existing granulating equipment is difficult to clean. The device comprises a medicine granulator and a medicine residual powder removing mechanism mounted on the medicine granulator. The medicine granulator is composed of a machine base, a cabin body, a grading motor, a compression roller and a circular mold, the gap between the compression roller and the circular mold is 0.3-1.0 cm, and raw materials are input through a feeding pipe for granulation. The residual powder removing mechanism comprises a powder blowing assembly and a residual powder collecting pipe. The powder blowing assembly is composed of an air pump, a hose and an air inlet pipe and blows residual powder in the cabin body to the discharging port. Through the synergistic effect of powder blowing and filtering, residual powder in the granulator is efficiently removed, cross contamination is avoided, and the consistency of product quality is improved; meanwhile, residual powder is recycled, and raw material waste is reduced; the structure design is reasonable, powder blockage is prevented, the maintenance burden is reduced, the granulation efficiency and the production cleanliness are improved, and the high-standard requirement of the pharmaceutical industry is met.

Description

Technical Field

[0001] This utility model relates to the field of drug processing technology, and more specifically, to a device for uniformly shaking drug particles. Background Technology

[0002] Drug granulation technology is one of the core processes in the pharmaceutical industry, widely used to process powdered drug raw materials into granules to improve drug flowability, stability, and ease of administration. Currently, commonly used granulation equipment includes swing granulators, extrusion granulators, and ring die granulators. These devices compress drug raw materials into shape through mechanical extrusion or vibration and discharge them from the outlet. However, in actual production, existing granulation equipment generally has technical deficiencies in handling residual powder, affecting production efficiency and product quality.

[0003] For example, Chinese patent document CN108672051A (publication date: October 19, 2018) discloses a "drug granulation apparatus and granulation method thereof". This apparatus includes a granulator body, pressure rollers, and a ring die. Drug raw materials are granulated by the squeezing action of the pressure rollers and the ring die, and a vibrating screen is used to classify and screen the granules. This technology separates particles of different sizes through the vibrating screen, reducing the mixing of unformed powder and improving the uniformity of the finished granules. However, this document does not propose effective measures for cleaning residual powder inside the granulator. After the granulation process, some drug powder remains inside the equipment (such as at the discharge port, the inner wall of the chamber, or the surface of the ring die). This residual powder not only leads to raw material waste and increased production costs, but may also mix into the next batch of drug raw materials during continuous production, affecting the consistency of product quality and even posing a risk of cross-contamination. Furthermore, the accumulation of residual powder may clog the discharge channel or ring die pores, leading to decreased equipment operating efficiency and increased frequency and difficulty of maintenance and cleaning.

[0004] Existing technologies offer limited solutions for dealing with residual powder. Some equipment relies on manual cleaning, but this method is inefficient and fails to thoroughly remove powder deep within the equipment. Other equipment reduces residual powder through airflow purging or enhanced vibration, but these typically lack a systematic collection and filtration design, causing the dispersed powder to scatter, polluting the production environment and posing a safety hazard if inhaled by operators. While CN108672051A improves the accuracy of particle grading, it does not address the systematic removal and recovery of residual powder inside the granulator, and therefore cannot meet the high requirements of modern pharmaceutical industry for production cleanliness and resource utilization.

[0005] In view of the shortcomings of the prior art, the present invention aims to provide a drug uniform shaking granulation device, which achieves efficient removal and recycling of residual powder in the granulation equipment through an integrated and innovative drug residual powder removal mechanism, thereby improving granulation efficiency, production cleanliness and raw material utilization, and providing more advanced and practical technical support for the pharmaceutical industry. Utility Model Content

[0006] The purpose of this invention is to provide a device for uniformly shaking drug particles to address the aforementioned shortcomings in the technology.

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

[0008] A drug uniform shaking granulation device includes a drug granulator and a drug residue removal mechanism installed on the drug granulator.

[0009] The drug residue removal mechanism includes a residue collection pipe installed at the discharge port of the drug granulator, and a powder blowing assembly fixed on the other side wall of the drug granulator.

[0010] The residual powder collection tube includes a straight tube inserted into the discharge port of the drug granulator, a connecting tube sleeved on the other end of the straight tube, and a filter membrane disposed in the inner cavity of the connecting tube, and the bottom of the connecting tube is connected to a collection tube for collecting residual powder.

[0011] The powder blowing assembly includes an air pump, a hose installed on the blower end of the air pump, and an air inlet pipe connected to the other end of the hose and extending into the inner cavity of the drug granulator.

[0012] Furthermore, a one-way valve is installed between the straight pipe and the discharge port of the drug granulator.

[0013] Furthermore, two L-shaped connecting rods are fixed on the outer ring of the connecting pipe, and the other end of the L-shaped connecting rod is fixed with a clamp that fits on the surface of the outer ring of the straight pipe.

[0014] Furthermore, the filter membrane is positioned at an angle of 40°-50° to the horizontal plane within the inner cavity of the connecting tube, and the bottom end of the filter membrane is fixedly connected to the edge of the top opening of the collecting tube.

[0015] Furthermore, a sealing plug is installed in the bottom opening of the collection tube by screwing it in.

[0016] Furthermore, the drug granulator specifically includes a base, a chamber fixed to the top of the base, and a ring die disposed in the inner cavity of the chamber. A grading motor is disposed at the top of the chamber, and a pressure roller extending into the inner cavity of the chamber is fixed at the output end of the grading motor. A ring die that cooperates with the pressure roller is installed on the inner side wall of the chamber, and a circular hole is provided on the ring die.

[0017] Furthermore, a fixing plate is fixed to the side wall of the base, and the housing of the air pump is fixed to the upper surface of the fixing plate by bolts.

[0018] Furthermore, the outer surface of the cabin is provided with a through hole for the air intake pipe to pass through into its interior.

[0019] Furthermore, there is a gap of 0.3cm-1.0cm between the pressure roller and the ring die, which allows the drug raw materials to enter between the pressure roller and the ring die.

[0020] Furthermore, a feed pipe is fixedly installed through the end cover of the graded motor housing, with the bottom end of the feed pipe located above the gap between the pressure roller and the ring die.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. This invention significantly improves the cleaning efficiency of residual powder by integrating a drug residue removal mechanism into a drug granulator. The powder blowing assembly uses airflow generated by an air pump to blow residual powder inside the chamber towards the discharge port. The filter membrane in the residual powder collection pipe efficiently separates the powder and guides it into the collection pipe. This not only achieves thorough cleaning of the equipment's interior but also reduces raw material waste through the detachable collection pipe structure for powder recovery. Compared to the inefficient manual cleaning or simple blowing methods in the prior art, this device effectively improves production cleanliness and resource utilization.

[0023] 2. This device promptly removes residual powder from the granulator, avoiding the risk of cross-contamination caused by residual powder mixing into the next batch of raw materials, thus ensuring product quality consistency and safety. The inclined filter membrane design (40°-50°) and the application of a one-way valve optimize powder separation and airflow control. Combined with the stable structure of the L-shaped connecting rod and clamp, powder leakage is prevented, reducing the safety hazard of operators inhaling dust. Compared with existing technologies (such as CN108672051A), this utility model has significant advantages in ensuring production safety and quality control.

[0024] 3. The residual powder removal mechanism of this invention effectively prevents powder from clogging the discharge port or ring die orifice, maintaining the stability of continuous equipment operation and reducing the frequency of downtime maintenance and the need for manual intervention. Simultaneously, the threaded sealing design at the bottom of the collection pipe simplifies the residual powder cleaning process and improves operational convenience. Compared to the lack of systematic residual powder treatment in existing technologies, this device optimizes granulation efficiency, reduces maintenance costs, and provides a more practical and efficient solution for the pharmaceutical industry. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0026] Figure 1 This is a schematic diagram of the assembled drug granulator and drug residue removal mechanism.

[0027] Figure 2 This is a cross-sectional exploded view of a drug granulator;

[0028] Figure 3 A cross-sectional schematic diagram of the residual powder collection tube in a drug residual powder removal mechanism;

[0029] Figure 4 This is a schematic diagram of the powder blowing component in a drug residue removal mechanism.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Drug granulator; 11. Base; 12. Fixing plate; 13. Feed pipe; 14. Ring die; 15. Grading motor; 16. Pressure roller; 17. Chamber; 2. Residual powder collection pipe; 21. Straight pipe; 22. Clamp; 23. L-shaped connecting rod; 24. Connecting pipe; 25. Filter membrane; 26. Collection pipe; 27. Sealing plug; 3. Powder blowing assembly; 31. Air pump; 32. Hose; 33. Air inlet pipe. Detailed Implementation

[0032] To provide a clearer explanation and illustration of the technical solution and implementation of this utility model, several further specific embodiments for implementing the technical solution of this utility model are introduced below.

[0033] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of each embodiment. Specific details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures. The disclosures of various publications, patents, and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solutions of this utility model will be clearly and completely described below in conjunction with embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.

[0034] Example: Refer to the appendix of the instruction manual. Figure 1 To be continued Figure 4 This embodiment provides a drug uniform granulation device, which mainly consists of a drug granulator 1 and a drug residue removal mechanism installed thereon. The structure and working principle of the device are described in detail below.

[0035] Structure of the drug granulator 1: The drug granulator 1 includes a base 11, a chamber 17 fixed to the top of the base 11, and a ring die 14 disposed within the inner cavity of the chamber 17. Specifically, the base 11 serves as the supporting structure for the entire device, and a fixing plate 12 is fixed to its side wall for subsequent installation of the powder blowing assembly 3. A classifying motor 15 is mounted on the top of the chamber 17, and the output end of the classifying motor 15 is connected to a pressure roller 16 extending into the inner cavity of the chamber 17. The pressure roller 16 cooperates with the ring die 14 fixed to the side wall of the inner cavity of the chamber 17. The ring die 14 has multiple circular holes for granulation of drug raw materials. A gap of 0.3cm-1.0cm is designed between the pressure roller 16 and the ring die 14 to allow the drug raw materials to enter and be extruded for granulation. To facilitate the input of raw materials, a feed pipe 13 is fixedly installed through the end cap of the grading motor 15, with its bottom end located above the gap between the pressure roller 16 and the ring die 14, ensuring that the raw materials can accurately enter the processing area. In addition, a through hole is provided on the outer surface of the chamber 17, through which the air inlet pipe 33 of the subsequent powder blowing assembly 3 enters the interior of the chamber 17.

[0036] Structure of the drug residue removal mechanism: The drug residue removal mechanism consists of two parts: a residue collection pipe 2 and a powder blowing assembly 3, which are installed at different positions in the drug granulator 1 to remove drug powder remaining in the equipment during the granulation process.

[0037] Structure of Residual Powder Collection Pipe 2: The residual powder collection pipe 2 is installed at the discharge port of the drug granulator 1, and mainly includes a straight pipe 21, a connecting pipe 24, a filter membrane 25, and a collection pipe 26. Specifically, one end of the straight pipe 21 is inserted into the discharge port of the drug granulator 1, and a one-way valve is installed between the straight pipe 21 and the discharge port to ensure that gas and residual powder can only flow in a designated direction and avoid backflow. The other end of the straight pipe 21 is sleeved with the connecting pipe 24, which is fixedly connected to the straight pipe 21 by two L-shaped connecting rods 23. The ends of the L-shaped connecting rods 23 are fixed with clamps 22, which are sleeved on the outer surface of the straight pipe 21 to enhance the stability of the connection. A filter membrane 25 is installed in the inner cavity of the connecting pipe 24. The filter membrane 25 is inclined at an angle of 40°-50° with the horizontal plane, and its bottom end is fixedly connected to the top opening edge of the collection pipe 26. The collecting tube 26 is connected to the bottom of the connecting tube 24 and is used to collect the residual powder filtered by the filter membrane 25. The bottom opening is fitted with a sealing plug 27 by screwing it in, so that the collected residual powder can be removed periodically.

[0038] Structure of the powder blowing assembly 3: The powder blowing assembly 3 is fixed to the other side wall of the drug granulator 1, and includes an air pump 31, a hose 32, and an air inlet pipe 33. The housing of the air pump 31 is fixed to the upper surface of the fixing plate 12 on the side wall of the base 11 by bolts. Its blower end is connected to a hose 32, and the other end of the hose 32 is connected to the air inlet pipe 33. The air inlet pipe 33 passes through a through hole on the outer surface of the chamber 17 and enters the inner cavity of the chamber 17 to blow gas into the interior and agitate the residual drug powder.

[0039] Working Principle: During drug granulation, the drug raw material enters the gap between the pressure roller 16 and the ring die 14 through the feed pipe 13. Driven by the classifying motor 15, the pressure roller 16 rotates and cooperates with the ring die 14, squeezing the raw material through the round hole on the ring die 14 to form granular drug, which is then discharged from the outlet. After granulation, some unformed drug powder may remain in the chamber 17. To remove this residual powder, the air pump 31 in the powder blowing assembly 3 is activated. The air pump 31 blows air into the inner cavity of the chamber 17 through the hose 32 and the air inlet pipe 33. The airflow carries the residual powder towards the outlet. At this time, the straight pipe 21 in the residual powder collection pipe 2 receives the mixture of blown gas and powder, and a one-way valve prevents the mixture from flowing back. After the gas enters the connecting pipe 24, the filter membrane 25 filters and separates the powder. The powder slides down the inclined filter membrane 25 into the collection pipe 26, while the filtered gas is discharged from the other end of the connecting pipe 24. Residual powder in the collection tube 26 can be cleaned by periodically unscrewing the sealing plug 27.

[0040] Technical Effects: This embodiment achieves effective removal of residual drug powder inside the drug granulator by adding a drug residue removal mechanism to the granulator 1. The combination of the powder blowing assembly 3 and the residue collection pipe 2 not only cleans the inside of the equipment and prevents residual powder from interfering with subsequent granulation operations, but also realizes the recovery of residual powder through the collection pipe 26, reducing raw material waste. The inclined design of the filter membrane 25 and the application of the one-way valve further improve the removal efficiency and equipment safety.

[0041] In the description of this utility model, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this specification, it should be understood that the directional terms such as "upper," "lower," "left," and "right" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for uniformly shaking drug granules, characterized in that, It includes a drug granulator (1) and a drug residue removal mechanism installed on the drug granulator (1); The drug residue removal mechanism includes a residue collection pipe (2) installed at the discharge port of the drug granulator (1) and a powder blowing assembly (3) fixed on the other side wall of the drug granulator (1); The residual powder collection tube (2) includes a straight tube (21) inserted into the discharge port of the drug granulator (1), a connecting tube (24) sleeved on the other end of the straight tube (21), and a filter membrane (25) disposed in the inner cavity of the connecting tube (24). The bottom of the connecting tube (24) is connected to a collection tube (26) for collecting residual powder. The powder blowing assembly (3) includes an air pump (31), a hose (32) installed on the blower end of the air pump (31), and an air inlet pipe (33) connected to the other end of the hose (32) and extending into the inner cavity of the drug granulator (1).

2. The drug uniform shaking granule device according to claim 1, characterized in that, A one-way valve is provided between the straight pipe (21) and the discharge port of the drug granulator (1).

3. The drug uniform shaking granule device according to claim 1, characterized in that, Two L-shaped connecting rods (23) are fixed on the outer ring of the connecting pipe (24), and the other end of the L-shaped connecting rod (23) is fixed with a clamp (22) that is sleeved on the outer ring surface of the straight pipe (21).

4. The drug uniform shaking granule device according to claim 1, characterized in that, The filter membrane (25) is at an angle of 40°-50° to the horizontal plane in the inner cavity of the connecting tube (24), and the bottom end of the filter membrane (25) is fixedly connected to the top opening edge of the collecting tube (26).

5. The drug uniform shaking granule device according to claim 1, characterized in that, A sealing plug (27) is screwed into the bottom opening of the collection tube (26).

6. The drug uniform shaking granule device according to claim 1, characterized in that, The drug granulator (1) specifically includes a base (11), a chamber (17) fixed on the top of the base (11), and a ring die (14) set in the inner cavity of the chamber (17). A grading motor (15) is provided on the top of the chamber (17), and a pressure roller (16) extending into the inner cavity of the chamber (17) is fixed at the output end of the grading motor (15). A ring die (14) that cooperates with the pressure roller (16) is installed on the inner side wall of the chamber (17), and a round hole is provided on the ring die (14).

7. The drug uniform shaking granule device according to claim 6, characterized in that, A fixing plate (12) is fixed on the side wall of the base (11), and the housing of the air pump (31) is fixed to the upper surface of the fixing plate (12) by bolts.

8. The drug uniform shaking granule device according to claim 6, characterized in that, The outer surface of the cabin (17) is provided with a through hole for the air intake pipe (33) to pass through into its interior.

9. A drug uniform shaking granule device according to claim 6, characterized in that, There is a gap of 0.3cm-1.0cm between the pressure roller (16) and the ring die (14) for the drug raw materials to enter between the pressure roller (16) and the ring die (14).

10. A drug uniform shaking granule device according to claim 6, characterized in that, A feed pipe (13) is fixed through the end cover of the outer shell of the graded motor (15), and the bottom end of the feed pipe (13) is located above the gap between the pressure roller (16) and the ring die (14).

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