A granulating mechanism of a dry granulator

Abstract

The utility model discloses a granulating mechanism of dry granulator, including granulating cylinder, the inside of granulating cylinder is hollow structure design, and the front end outer wall of granulating cylinder is fixedly installed with the front end seat, is provided with the internal thread portion on the top end inner wall of front end seat, and the top end inside of front end seat is provided with the granulating board, and the outer ring of granulating board has the external thread portion, and granulating board is detachable screw connection through internal and external thread portion and front end seat, is equipped with a plurality of evenly distributed granulating holes on granulating board, and the tail end outer wall of granulating cylinder is fixedly installed with rear end seat, and the outer surface center position of rear end seat is fixedly installed with the feeding motor through bolt, the utility model discloses quick replacement to granulating board, thereby can produce the granule medicine of different size, effectively reduces the use limitation of mechanism, and the size of granulating is more extensive in the range of application, and granulating board is convenient for the installation and dismounting of thread, thereby can have the quick granulating board replacement use effect, and the structure is more convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of drug granulation technology, specifically to a granulation mechanism of a dry granulation machine. Background Technology

[0002] Medicines are substances used to prevent, treat, or diagnose human diseases, to purposefully regulate human physiological functions, and which have specified indications or functions, usage, and dosage.

[0003] Pharmaceuticals need to be produced in different shapes according to different production needs, such as tablets, cylindrical granules, etc. When pharmaceuticals are produced in cylindrical granule form, a granulator is required.

[0004] Dry granulation machines are required in the dry granulation process of pharmaceuticals with cylindrical granular structures. Dry granulation mainly relies on mechanical extrusion to overcome the electrostatic repulsion between powders, so that the powders form new intermolecular forces under pressure, thereby producing granules.

[0005] Traditional dry granulation machines are mostly complex in structure, difficult to manufacture and operate, and can only produce granules of a single specification. They cannot dynamically adjust the size specification according to different production sizes, which has certain limitations. Therefore, this utility model proposes a granulation mechanism for a dry granulation machine. Utility Model Content

[0006] The purpose of this invention is to provide a granulation mechanism for a dry granulator to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a granulation mechanism for a dry granulator, comprising a granulation cylinder with a hollow internal structure. A front end seat is fixedly installed on the outer wall of the front end of the granulation cylinder. An internal thread is provided on the inner wall of the top end of the front end seat. A granulation plate is provided inside the top end of the front end seat. An external thread is provided on the outer ring of the granulation plate. The granulation plate is detachably threaded to the front end seat through the internal and external threads. A plurality of evenly distributed granulation holes are provided on the granulation plate. A rear end seat is fixedly installed on the outer wall of the rear end of the granulation cylinder. A feeding motor is fixedly installed at the center of the outer surface of the rear end seat by bolts. A spiral auger is provided inside the granulation cylinder. The output shaft of the feeding motor is fixedly connected to the spiral auger.

[0008] Preferably, a feeding port is fixedly installed on the outer surface of the tail end of the granulation cylinder, and the feeding port is in communication with the interior of the granulation cylinder.

[0009] Preferably, the injection port is provided with a sealing plug that matches its diameter.

[0010] Preferably, a motor base is fixedly installed on the front side wall of the granulation cylinder by welding, and a rotary motor is fixedly installed on the motor base.

[0011] Preferably, the output shaft of the rotary motor is fixedly connected to a cutter shaft, and a plurality of circumferentially distributed granulation cutters are fixedly installed on the outer surface of the top end of the cutter shaft.

[0012] Preferably, the granulation cylinder is externally fitted with a steel mesh.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention allows for the replacement of granulation plates with different apertures to meet varying production requirements. By changing the granulation plates, different sizes of granulated medicines can be produced, resulting in a dynamically adjustable production size. This makes the granulation mechanism of this invention capable of producing granulated medicines of different sizes according to different production requirements, demonstrating good structural practicality. Compared to traditional granulation structures, this invention, through the rapid replacement of the granulation plates, can produce granulated medicines of different sizes, effectively reducing the limitations of the mechanism's use. The applicable granulation size range is wider, and the granulation plates are easy to install and remove via threads, allowing for quick granulation plate replacement. The structure is more convenient to use and more practical.

[0015] In practical use, this invention allows for the production of granular medicines of different thicknesses by changing the rotation speed of the rotating motor, while keeping the conveying speed of the spiral auger constant.

[0016] The slower the rotation speed of the rotary motor, the longer the interval between material cutting, resulting in thicker granules. Conversely, the faster the rotation speed, the thinner the granules. By controlling the rotation speed of the rotary motor, the thickness of the granules can be effectively controlled, providing a practical effect of dynamic adjustment of thickness. With the use of a detachable granulation plate, the granulation mechanism of this invention can be dynamically adjusted to the size and specifications of the drugs according to different production requirements. The structure is more adaptable, easier to use, and has a simple overall structure, making it easy to manufacture and operate, and suitable for implementation. Attached Figure Description

[0017] Figure 1 This is a left-side perspective three-dimensional structural diagram of the granulation mechanism according to an embodiment of the present utility model;

[0018] Figure 2 This is a right-side perspective three-dimensional structural diagram of the granulation mechanism according to an embodiment of the present utility model;

[0019] Figure 3This is a schematic diagram of the internal cross-sectional structure of the granulation mechanism according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the pelletizing plate structure according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the overall structure of the spiral auger plate according to an embodiment of the present utility model.

[0022] In the diagram: 1. Granulation cylinder; 2. Front end seat; 3. Granulation plate; 4. External threaded part; 5. Granulation hole; 6. Rear end seat; 7. Feeding motor; 8. Spiral auger blade; 9. Inlet; 10. Motor base; 11. Rotary motor; 12. Cutter shaft; 13. Granulation cutter; 14. Reinforcing mesh. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1-5The present invention provides an embodiment of a granulation mechanism for a dry granulation machine, comprising a granulation cylinder 1, wherein the interior of the granulation cylinder 1 is designed as a hollow structure, and in order to strengthen the protection of the exterior of the granulation cylinder 1, a steel mesh 14 is fixedly sleeved on the exterior of the granulation cylinder 1.

[0027] A front end seat 2 is fixedly installed on the outer wall of the front end of the pelletizing cylinder 1. An internal thread is provided on the inner wall of the top end of the front end seat 2. A pelletizing plate 3 is provided inside the top end of the front end seat 2. An external thread 4 is provided on the outer ring of the pelletizing plate 3. The pelletizing plate 3 is detachably threaded to the front end seat 2 through the internal and external thread. Several evenly distributed pelletizing holes 5 are provided on the pelletizing plate 3.

[0028] In actual use, this utility model is equipped with a granulation plate 3 with multiple granulation holes 5 of different diameters to meet the needs of granulation of medicines of different specifications and sizes.

[0029] In practical use, this structural design allows the dry-granulated pharmaceutical raw materials to be discharged from the granulation holes 5 of the granulation plate 3 through mechanical conveying and extrusion, thereby providing certain extrusion molding conditions for subsequent granulation work.

[0030] The granulation plate 3 and the front seat 2 are detachably connected by screwing in. In actual use, the granulation plate 3 with different aperture can be replaced according to different production requirements. By replacing different granulation plates 3, granules of different sizes and specifications can be produced, thus achieving the practical effect of dynamically adjustable production size.

[0031] Furthermore, in order to ensure the normal material conveying operation of the pelleting mechanism of this utility model, a rear end seat 6 is fixedly installed on the outer wall of the tail end of the pelleting cylinder 1. A material conveying motor 7 is fixedly installed at the center of the outer surface of the rear end seat 6 by bolts. A spiral auger plate 8 is provided inside the pelleting cylinder 1. The output shaft of the material conveying motor 7 is fixedly connected to the spiral auger plate 8.

[0032] The feeding motor 7 can drive the spiral auger blade 8 to rotate through its output shaft. When the spiral auger blade 8 is rotating, the medicine material inside the granulation cylinder 1 is conveyed from the rear end to the front end, thereby completing the auger conveying of the internal medicine material and ensuring normal granulation and feeding effect.

[0033] In this embodiment, in order to facilitate the injection of granulated pharmaceutical materials, a feeding port 9 is fixedly installed on the outer surface of the tail end of the granulation cylinder 1. The feeding port 9 is interconnected with the interior of the granulation cylinder 1, so that the pharmaceutical materials can be injected into the interior of the granulation cylinder 1 through the feeding port 9.

[0034] The injection port 9 is equipped with a sealing plug that matches its diameter. This sealing plug can seal the injection port 9 when the pelletizing mechanism is not in use, thereby preventing dust or debris from entering and improving the performance.

[0035] In this embodiment, in order to achieve the normal granulation effect, a motor base 10 is fixedly installed on the front side wall of the granulation cylinder 1 by welding, and a rotary motor 11 is fixedly installed on the motor base 10.

[0036] Furthermore, the output shaft of the rotary motor 11 is fixedly connected to a cutter shaft 12, and a number of circumferentially distributed granulation cutters 13 are fixedly installed on the outer surface of the top end of the cutter shaft 12.

[0037] In this structural design, the rotary motor 11 can drive the cutter shaft 12 to rotate through its output shaft. When the cutter shaft 12 rotates, it will synchronously drive several granulation cutters 13 to rotate. When the granulation cutters 13 rotate, the material extruded through the granulation plate 3 and the granulation hole 5 can be cut by the granulation cutters 13. The extruded and cut material is cylindrical granular medicine, thus completing the normal extrusion, cutting and granulation work of the granulation mechanism of this utility model.

[0038] In actual use, this invention allows for the production of granular medicines of different thicknesses by changing the rotation speed of the rotary motor 11, while keeping the conveying speed of the spiral auger plate 8 constant.

[0039] The slower the rotation speed of the rotary motor 11, the longer the interval between material cutting, and the thicker the cut granules. Conversely, the faster the rotation speed of the rotary motor 11, the thinner the cut granules. By controlling the rotation speed of the rotary motor 11, the thickness of the drug granules can be effectively controlled, achieving a practical effect of dynamic adjustment of thickness. By using the detachable granulation plate 3, the granulation mechanism of this invention can dynamically adjust the drug specifications according to different sizes and thickness production requirements, making the structure more adaptable and convenient to use.

[0040] Another way to change the thickness of drug particles is to keep the rotation speed of the rotary motor constant and adjust the particle thickness by changing the conveying speed of the spiral auger plate 8.

[0041] That is, the faster the conveying speed of the spiral auger plate 8, the thicker the cut drug particles will be, and the slower the conveying speed of the spiral auger plate 8, the thinner the cut drug particles will be.

[0042] The conveying speed of the spiral auger blades 8 can be effectively controlled by controlling the rotation speed of the conveying motor 7. Both of these methods can change the thickness of the granulated particles. The specific application can be dynamically selected according to the actual production requirements.

[0043] Working principle: When using this utility model, the pharmaceutical materials that need to be granulated can be injected into the granulation cylinder 1 of this utility model through the injection port 9;

[0044] At this time, the feeding motor 7 can drive the spiral auger plate 8 to rotate through its output shaft. When the spiral auger plate 8 is rotating, the medicine material inside the granulation cylinder 1 can be conveyed from the rear end to the front end, thereby completing the auger conveying of the internal medicine material and ensuring normal granulation and feeding effect.

[0045] During the continuous rotation and feeding process of the spiral auger plate 8, the pharmaceutical raw materials inside can be extruded through the granulation holes 5 of the granulation plate 3.

[0046] During the extrusion process of the spiral auger plate 8, the rotary motor 11 operates synchronously. The rotary motor 11 can drive the cutter shaft 12 to rotate through its output shaft. When the cutter shaft 12 rotates, it will synchronously drive several granulation cutters 13 to rotate. When the granulation cutters 13 rotate, the material extruded through the granulation plate 3 and the granulation hole 5 can be cut by the granulation cutters 13. The extruded and cut material is cylindrical granular medicine, thus completing the normal medicine extrusion, cutting and granulation work of the granulation mechanism of this utility model.

[0047] In practical use, this utility model is equipped with a granulation plate 3 with multiple granulation holes 5 of different diameters to meet the needs of granulation of medicines of different specifications and sizes.

[0048] Meanwhile, the granulation plate 3 and the front seat 2 are detachably connected by a screw thread. In actual use, the granulation plate 3 with different aperture can be replaced according to different production requirements. By replacing different granulation plates 3, granules of different sizes and specifications can be produced, thus achieving a dynamic adjustment effect in production size. This allows the granulation mechanism of this utility model to produce granules of different sizes and specifications according to different production requirements, and has good structural practicality. Compared with the traditional granulation structure, this utility model can produce granules of different sizes by quickly replacing the granulation plate 3, effectively reducing the limitations of the mechanism's use. The applicable range of granulation size is wider, and the granulation plate 3 is easy to install and remove by screw thread, thus achieving a quick granulation plate replacement effect. The structure is more convenient to use and more practical.

[0049] Furthermore, with the conveying speed of the spiral auger plate 8 remaining constant, granular medicines of different thicknesses can be produced by changing the rotation speed of the rotary motor 11.

[0050] The slower the rotation speed of the rotary motor 11, the longer the material cutting interval, and the thicker the cut granules. Conversely, the faster the rotation speed of the rotary motor 11, the thinner the cut granules. By controlling the rotation speed of the rotary motor 11, the thickness of the drug granules can be effectively controlled, achieving dynamic adjustment of the thickness. In conjunction with the detachable granulation plate 3, the granulation mechanism of this invention can dynamically adjust the drug specifications according to different sizes and thickness production requirements. The structure is more adaptable, easy to use, and has a simple overall structure, making it easy to manufacture and operate, and suitable for implementation.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A granulation mechanism for a dry granulator, comprising a granulation cylinder (1), characterized in that, The granulation cylinder (1) has a hollow internal structure. A front end seat (2) is fixedly installed on the outer wall of the front end of the granulation cylinder (1). An internal thread is provided on the inner wall of the top end of the front end seat (2). A granulation plate (3) is provided inside the top end of the front end seat (2). An external thread (4) is provided on the outer ring of the granulation plate (3). The granulation plate (3) is detachably threaded to the front end seat (2) through the internal and external threads. Several evenly distributed granulation holes (5) are provided on the granulation plate (3). A motor seat (10) is fixedly installed on the front end side wall of the granulation cylinder (1) by welding. A rotary motor (11) is fixedly installed on the motor seat (10). A cutter shaft (12) is fixedly connected to the output shaft of the rotary motor (11). Several circumferentially distributed granulation cutters (13) are fixedly installed on the outer surface of the top end of the cutter shaft (12).

2. The granulation mechanism of a dry granulator according to claim 1, characterized in that: A rear end seat (6) is fixedly installed on the outer wall of the tail end of the pelleting cylinder (1), and a feeding motor (7) is fixedly installed at the center of the outer surface of the rear end seat (6) by bolts.

3. The granulation mechanism of a dry granulator according to claim 1, characterized in that: The pelletizing cylinder (1) is equipped with a spiral auger (8) inside, and the spiral auger (8) is fixedly connected to the output shaft of the feeding motor (7).

4. The granulation mechanism of a dry granulator according to claim 1, characterized in that: A feeding port (9) is fixedly installed on the outer surface of the tail end of the granulation cylinder (1), and the feeding port (9) is in communication with the interior of the granulation cylinder (1).

5. The granulation mechanism of a dry granulator according to claim 4, characterized in that: The injection port (9) is equipped with a sealing plug that matches its diameter.

6. The granulation mechanism of a dry granulator according to claim 1, characterized in that: The granulation cylinder (1) is fixedly fitted with a steel mesh (14).

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