A granular medicine dry granulator

Abstract

The utility model discloses a granular medicine dry granulator belongs to medicine manufacturing processing technical field, it includes the warehouse body, the sliding installation of warehouse body has the collection box, the filler hopper is connected with on the warehouse body top, the inside bearing rotation connection of warehouse body has the connecting rod, the protection cover is connected with on the warehouse body, the fixed connection of warehouse body one side has two fixed links. This granular medicine dry granulator, through the motor rotation one of the shaft, utilize the mutual meshing of two gear, make two granulating roll synchronous rolling, the granulating roll of rolling will drive the push nub rotation, and then in the rotating process through the force of the inclined plane push and knock the block, make the knock the block slip into to the hollow plate compression spring, and then in the push nub away after the spring rebound pushes the knock the block, make knock the block impact knock the granulating roll inner wall, thereby through the collision and shake off the residual material, avoid material or granule stick in the granulating groove.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical manufacturing and processing technology, specifically a dry granulation machine for granular drugs. Background Technology

[0002] Dry granulation machines are machines that use mechanical compression, rolling, or extrusion to form powdered materials. They directly compress, crush, and granulate dry powder materials into uniform granules without the need for liquid binders. They are suitable for granulating materials that are sensitive to moisture or heat and are commonly used in the pharmaceutical industry for the production of antibiotics and traditional Chinese medicine granules.

[0003] In the actual extrusion granulation process, traditional dry granulation machines tend to accumulate and stick materials in the grooves of the granulation rollers. Some materials or particles with slightly higher moisture content or greater viscosity will leave a large amount of material residue, which will affect granulation efficiency and reduce the yield. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a dry granulation machine for granular medicines, which solves the problem that the groove of the granulation roller is prone to accumulation and sticking, and that some materials or particles with slightly higher moisture content or greater viscosity result in a large amount of material residue, which affects granulation efficiency and reduces the yield.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dry granulation machine for granular medicine, comprising a chamber, a collection box slidably installed inside the chamber, a filling hopper connected above the chamber, a connecting rod rotatably connected inside the chamber via a bearing, a protective cover connected to the chamber, two fixed rods fixedly connected to one side of the chamber, and two rotating shafts rotatably connected to the other side of the chamber via a bearing; One end of the rotating shaft that extends into the chamber is connected to a granulating roller, and the other end of the rotating shaft that extends out of the chamber is connected to a gear. The granulating roller has multiple granulation grooves, and multiple push blocks are connected to the inner wall of the granulating roller. A hollow plate is connected inside the fixing rod, and multiple springs are connected inside the hollow plate. One end of each spring is connected to a striking block, and multiple stirring plates are connected to the connecting rod.

[0006] As a further embodiment of this utility model: the fixing rod passes through the granulating roller and the granulating roller is rotatably connected to the fixing rod through a bearing, and the connecting rod is located between the filling hopper and the granulating roller.

[0007] As a further embodiment of this utility model: a motor is fixedly installed on the protective cover, and the gears on the two rotating shafts mesh with each other and are disposed inside the protective cover. The output shaft of the motor is connected to one of the rotating shafts, and the other rotating shaft passes through the protective cover and is connected to the main synchronous pulley.

[0008] As a further embodiment of this utility model: one end of the connecting rod passes through the chamber and is connected to a secondary synchronous pulley, and a toothed belt is installed on both the secondary synchronous pulley and the main synchronous pulley.

[0009] As a further embodiment of this utility model: a guide block is connected to the inner walls on both sides of the silo body. The guide block is triangular in shape and is in close contact with the granulation roller.

[0010] As a further embodiment of this utility model: anti-slip pads are connected to the four corners below the chamber body, and anti-slip textures are provided below the anti-slip pads. The push block and the striking block are both wedge-shaped and their inclined sides fit together.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This dry granulation machine for granulated pharmaceuticals uses gears, a rotating shaft, a fixed rod, a pusher block, a striking block, a spring, and a hollow plate. A motor rotates one of the rotating shafts, and the meshing of two gears causes two granulation rollers to rotate synchronously. The rotating granulation rollers drive the pusher block to rotate, and during this rotation, the force of the inclined plane pushes the striking block, causing it to slide into the hollow plate and compress the spring. After the pusher block moves away, the spring's rebound pushes the striking block, causing it to collide with and strike the inner wall of the granulation rollers. This collision dislodges residual material, preventing material or particles from sticking to the granulation tank.

[0012] This dry granulation machine for granulated pharmaceuticals is equipped with a main synchronous wheel, a secondary synchronous wheel, a toothed belt, a connecting rod, a mixing plate, and a guide block. When the two rotating shafts rotate synchronously through gear meshing, the main synchronous wheel drives the secondary synchronous wheel through the toothed belt, causing the connecting rod to rotate. This, in turn, causes the mixing plate to agitate the filled material, preventing material accumulation. The guide block guides the material through its inclined surface and simultaneously scrapes off any material adhering to the surface of the granulation roller through its contact with the granulation roller, preventing residual material from interfering with subsequent production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the silo body of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the granulation roller of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the hollow plate of this utility model; In the diagram: 1. Bin; 2. Collection box; 3. Filler hopper; 4. Connecting rod; 5. Protective cover; 6. Fixing rod; 7. Rotating shaft; 8. Granulating roller; 9. Gear; 10. Granulating trough; 11. Push block; 12. Hollow plate; 13. Spring; 14. Striking block; 15. Stirring plate; 16. Motor; 17. Main synchronous pulley; 18. Secondary synchronous pulley; 19. Toothed belt; 20. Guide block; 21. Anti-slip mat. Detailed Implementation

[0014] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0015] like Figure 1-4 As shown, this utility model provides a technical solution: a dry granulation machine for granular medicine, including a chamber 1, a collection box 2 slidably installed inside the chamber 1, a filling hopper 3 connected above the chamber 1, a connecting rod 4 rotatably connected inside the chamber 1 via a bearing, a protective cover 5 connected to the chamber 1, a motor 16 fixedly installed on the protective cover 5, and gears 9 on two rotating shafts 7 meshing with each other and disposed inside the protective cover 5, the output shaft of the motor 16 being connected to one of the rotating shafts 7, and the other rotating shaft 7 passing through the protective cover 5 and connected to a main synchronous pulley 17, the protective cover 5 protecting and isolating the gears 9, reducing the contact between the gears 9 and the outside world.

[0016] Two fixed rods 6 are fixedly connected to one side of the silo body 1. The fixed rods 6 pass through the granulation roller 8 and the granulation roller 8 is rotatably connected to the fixed rods 6 through bearings. The connecting rod 4 is located between the filling hopper 3 and the granulation roller 8. The rotation of the connecting rod 4 causes the stirring plate 15 to stir the material filled from the filling hopper 3, ensuring the flow of the material and preventing the material from accumulating and clumping.

[0017] On the other side of the silo 1, two rotating shafts 7 are rotatably connected via bearings. One end of the rotating shaft 7 that extends into the silo 1 is connected to a granulating roller 8. Guide blocks 20 are connected to the inner walls on both sides of the silo 1. The guide blocks 20 are triangular in design and are in close contact with the granulating roller 8. The inclined surface of the triangular structure guides the material in the silo 1 to the pressing and forming area of ​​the granulating roller 8. At the same time, the close contact with the granulating roller 8 scrapes off the residual material on the roller surface in real time. The dual function ensures a stable and efficient granulation process.

[0018] A gear 9 is connected to one end of the rotating shaft 7 extending out of the hopper 1. Multiple granulation grooves 10 are opened on the granulation roller 8. Multiple push blocks 11 are connected to the inner wall of the granulation roller 8. A hollow plate 12 is connected inside the fixed rod 6. Multiple springs 13 are connected inside the hollow plate 12. A striking block 14 is connected to one end of each spring 13. Anti-slip pads 21 are connected to the four corners below the hopper 1. Anti-slip textures are provided under the anti-slip pads 21. Both the push blocks 11 and the striking blocks 14 are wedge-shaped and their inclined sides fit together. The anti-slip textures of the anti-slip pads 21 enhance the friction between the hopper 1 and the ground, preventing displacement during operation. The inclined contact between the striking blocks 14 and the push blocks 11 allows the striking blocks 14 to be moved flexibly during rotation, thereby achieving knocking cleaning.

[0019] Multiple stirring plates 15 are connected to the connecting rod 4. One end of the connecting rod 4 passes through the silo 1 and is connected to a secondary synchronous pulley 18. The secondary synchronous pulley 18 and the main synchronous pulley 17 are both equipped with a toothed belt 19. Through the cooperation of the main synchronous pulley 17, the secondary synchronous pulley 18 and the toothed belt 19, the connecting rod 4 drives the stirring plates 15 to rotate together with the granulation roller 8, thereby avoiding material accumulation and providing uniform and loose material for the subsequent granulation process.

[0020] The working principle of this utility model is as follows: The motor 16 rotates one of the shafts 7, and the meshing of two gears 9 causes the two granulation rollers 8 to roll synchronously. The rolling granulation rollers 8 drive the pusher block 11 to rotate, so that the pusher block 11 pushes the striking block 14 during rotation, causing the striking block 14 to slide into the hollow plate 12 and compress the spring 13. Then, after the pusher block 11 moves away, the spring 13 pushes the striking block 14, causing the striking block 14 to collide with and strike the inner wall of the granulation roller 8. This collision shakes off residual material, preventing material or particles from sticking to the granulation tank 10. The other shaft 7 drives the main synchronous wheel 17, which drives the auxiliary synchronous wheel 18 through the toothed belt 19, causing the connecting rod 4 to rotate. This causes the mixing plate 15 to agitate the filled material, and the guide block 20 guides the material through the inclined surface and scrapes off the material adhering to the surface of the granulation roller 8 after granulation.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0022] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A dry granulation machine for granulated pharmaceuticals, comprising a chamber (1), characterized in that: A collection box (2) is slidably installed inside the silo (1). A filling hopper (3) is connected above the silo (1). A connecting rod (4) is rotatably connected inside the silo (1) via a bearing. A protective cover (5) is connected to the silo (1). Two fixing rods (6) are fixedly connected to one side of the silo (1). Two rotating shafts (7) are rotatably connected to the other side of the silo (1) via a bearing. One end of the rotating shaft (7) that extends into the silo (1) is connected to a granulating roller (8), and the other end of the rotating shaft (7) that extends out of the silo (1) is connected to a gear (9). The granulating roller (8) has multiple granulation grooves (10). Multiple push blocks (11) are connected to the inner wall of the granulating roller (8). A hollow plate (12) is connected inside the fixing rod (6). Multiple springs (13) are connected inside the hollow plate (12). A striking block (14) is connected to one end of the spring (13). Multiple stirring plates (15) are connected to the connecting rod (4).

2. The dry granulation machine for granulated pharmaceuticals according to claim 1, characterized in that: The fixed rod (6) passes through the granulating roller (8) and the granulating roller (8) is rotatably connected to the fixed rod (6) through a bearing. The connecting rod (4) is located between the filling hopper (3) and the granulating roller (8).

3. The dry granulation machine for granulated pharmaceuticals according to claim 1, characterized in that: A motor (16) is fixedly installed on the protective cover (5), and the gears (9) on the two rotating shafts (7) mesh with each other and are arranged inside the protective cover (5). The output shaft of the motor (16) is connected to one of the rotating shafts (7), and the other rotating shaft (7) passes through the protective cover (5) and is connected to the main synchronous pulley (17).

4. The dry granulation machine for granulated pharmaceuticals according to claim 3, characterized in that: One end of the connecting rod (4) passes through the chamber (1) and is connected to the auxiliary synchronous pulley (18). The auxiliary synchronous pulley (18) and the main synchronous pulley (17) are both equipped with a toothed belt (19).

5. The dry granulation machine for granulated pharmaceuticals according to claim 1, characterized in that: The inner walls on both sides of the silo (1) are connected to guide blocks (20), which are triangular in shape and in close contact with the granulation roller (8).

6. The dry granulation machine for granulated pharmaceuticals according to claim 1, characterized in that: Anti-slip pads (21) are connected to the four corners below the chamber body (1). Anti-slip textures are provided below the anti-slip pads (21). The push block (11) and the knocking block (14) are both wedge-shaped and their inclined sides fit together.

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