A pulverizing and granulating device for tablet preparation

Abstract

The utility model discloses a kind of comminuting and granulating devices for tablet preparation, it is related to tablet preparation field, the utility model includes device main body, the top of device main body is equipped with servo motor, and the output end of servo motor is connected with the driving shaft extending to the inside of device main body.The utility model is provided with gas hose, gas pipe, air jet nozzle, pull rod and pull plate, when needing to dredge the blocked screen, staff can first remove the location of pull plate, then staff pull rod by pull plate, pull rod moves gas pipe, and simultaneously, external compressed air enters gas pipe by gas hose, and is blown back from the screen directly below by equidistant distribution air jet nozzle, and fine powder stuck in screen hole is ejected, to avoid screen blockage, ensure the patency of screen, significantly improve screening speed, ensure screening continuous efficiency, and compared with traditional scraper cleaning mode, airflow back blowing cannot cause physical abrasion to screen surface, can effectively protect screen, prolong its service life.

Description

Technical Field

[0001] This utility model relates to the field of tablet preparation, specifically a pulverizing and granulating device for tablet preparation. Background Technology

[0002] The pulverizing and granulating device for tablet preparation is a key piece of equipment in the pharmaceutical industry used to crush, screen and optimize the particle size of raw materials, intermediates or substandard particles. Its core function is to control the particle size of materials through mechanical force, so as to provide uniform particles with good flowability for subsequent processes such as tableting and capsule filling.

[0003] Existing tablet pulverizing and granulating devices screen materials after cutting and pulverizing them. However, these screens become clogged after prolonged use, requiring unclogging. Common methods for unclogging screens include installing a manually operated scraper on one side of the screen or a simple vibrating component below it. When clogged, the scraper is manually pushed across the screen surface to remove accumulated material and some fine powder from the pores. However, scraper cleaning only works on the screen surface and cannot effectively remove material stuck inside the pores. The sticky fine powder inside the screen mesh is not very effective at preventing clogging. Furthermore, the scraper will rub against the screen, which can easily cause wear and tear on the screen or scraper over time, thus increasing the frequency of screen or scraper replacement. If the vibrating component is activated to use low-frequency vibration to make the screen shake slightly and promote the removal of clogging fine powder, the force of low-frequency vibration is limited. For highly sticky materials, the fine powder can easily re-adhere and clog the screen mesh after vibration. Moreover, long-term high-frequency vibration may cause the connection between the screen and the device to loosen, affecting the stability of the equipment and thus reducing the efficiency of screen unclogging. Summary of the Invention

[0004] Therefore, the purpose of this utility model is to provide a pulverizing and granulating device for tablet preparation, so as to solve the technical problem of poor screen clearing efficiency when the screen is clogged.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pulverizing and granulating device for tablet preparation, comprising a device body, a servo motor mounted on the top of the device body, and a drive shaft extending into the device body from the output end of the servo motor. Multiple pulverizing blades are mounted on the outer wall of the drive shaft. A gas distribution pipe is provided inside the device body, and a pull rod extending through to the outside of the device body is fixed to one side of the gas distribution pipe. A gas delivery hose extending to the outside of the device body is connected to the other side of the gas distribution pipe. A pull plate is fixed to one end of the pull rod, and an insertion hole is opened at the top of the pull plate. A second fixing plate is fixed to the lower side of one side of the device body, and a rod extending into the insertion hole is inserted into the second fixing plate. Multiple air nozzles are mounted on the top of the gas distribution pipe. A baffle is mounted on one side of the inside of the device body, and multiple fixed blades are mounted inside the device body.

[0006] By adopting the above technical solution, when the plug rod is inserted into the plug hole, the pull plate can be clamped and limited to prevent the pull plate from shifting randomly, thereby improving the stability of the pull plate and the pull rod.

[0007] Furthermore, a support frame is installed inside the lower part of the main body of the device, and a shaking cloth is installed on the top of the support frame, and a pneumatic vibrator is installed at the bottom of the support frame.

[0008] By adopting the above technical solution, the pneumatic vibrator can generate high-frequency micro-vibrations when working, which are transmitted to the material cloth to break the material adhesion and push the material to slide towards the discharge port along the inclined direction.

[0009] Furthermore, a discharge port is provided on one side of the main body of the device, and one side of the shaking cloth is inclined downward along the direction of the discharge port.

[0010] By adopting the above technical solution, the material can be discharged through the discharge port, preventing the material from accumulating on the shaking cloth.

[0011] Furthermore, an outlet is provided in the middle of one side of the main body of the device, and a first sealing plate is inserted inside the outlet. A screen frame is fixed to one side of the first sealing plate, and a screen is installed inside the screen frame.

[0012] By adopting the above technical solution, the screen frame is used to fix the screen, and the screen can screen qualified particles and retain coarse particles.

[0013] Furthermore, a slot is provided on the other side of the first sealing plate, and a first fixing plate is fixed on one side of the main body of the device, and an insert plate extending into the slot is inserted on the first fixing plate.

[0014] By adopting the above technical solution, after the insert plate is inserted into the slot, the first sealing plate can be clamped and limited to prevent the first sealing plate from moving at will.

[0015] Furthermore, a discharge port is provided at the middle position on the other side of the main body of the device. A sealing gasket is inserted inside the discharge port, and a second sealing plate is installed on one side of the sealing gasket. The sealing gasket is made of silicone rubber material.

[0016] By adopting the above technical solution, the second sealing plate and sealing gasket can seal the discharge port and prevent materials from being discharged from the discharge port at will.

[0017] Furthermore, the other side of the main body of the device is provided with a chute and a support plate, and a collection box is provided on the top of the support plate, with one side of the collection box located inside the chute.

[0018] By adopting the above technical solution, the support plate can support the collection box, and the collection box can collect the material that slides down from the top of the screen.

[0019] Furthermore, a feed pipe is connected to the top side of the main body of the device, and a guide hopper is installed inside the upper part of the main body of the device, with the guide hopper located directly below the feed pipe.

[0020] By adopting the above technical solution, the material can enter the interior of the main body of the device through the feed pipe, and the guide hopper can concentrate and guide the material to the crushing blade area, so that the crushing blade can cut and crush the material.

[0021] Furthermore, a control panel is installed on the upper surface of the main body of the device, and the control panel is electrically connected to the servo motor and the pneumatic vibrator respectively.

[0022] By adopting the above technical solution, it is convenient for staff to start or stop the servo motor and pneumatic vibrator through the control panel.

[0023] Furthermore, multiple jet nozzles are equidistantly distributed at the top of the air distribution pipe, and both the jet nozzles and the air distribution pipe are located directly below the screen.

[0024] By adopting the above technical solution, compressed air can enter the nozzle through the air distribution pipe and then be ejected through the nozzle to push out the fine powder stuck in the screen holes and avoid blockage.

[0025] In summary, the present invention has the following main advantages: 1. This utility model is equipped with an air supply hose, an air distribution pipe, a jet nozzle, a pull rod, and a pull plate. When it is necessary to unclog a clogged screen, the operator can first release the limit of the pull plate, and then pull the pull rod through the pull plate. The pull rod moves the air distribution pipe, and at the same time, external compressed air enters the air distribution pipe through the air supply hose and blows back from directly below the screen through the equidistantly distributed jet nozzles, pushing out the fine powder stuck in the screen holes, avoiding screen blockage, ensuring the smooth flow of the screen, significantly improving the screening speed, ensuring continuous and efficient screening, and compared with the traditional scraper cleaning method, the airflow back-blowing will not cause physical wear on the screen surface, which can effectively protect the screen and extend its service life. 2. This utility model is equipped with a plug rod and a plug hole. When the plug rod is inserted into the plug hole, it can lock and limit the pull plate, thereby improving the stability of the pull plate and preventing the pull plate from moving at will. 3. This utility model has a baffle that can block the idle air nozzle, preventing material from falling into the nozzle when it is not in use, thus preventing the nozzle from becoming clogged. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall side structure of this utility model; Figure 3 This is a schematic diagram of the side structure of the discharge port of this utility model; Figure 4 This is a schematic diagram of the overall orthographic structure of this utility model; Figure 5 This is a schematic diagram of the screen structure of this utility model; Figure 6 This is a schematic diagram of the shredder blade structure of this utility model; Figure 7 For the present utility model Figure 4 A magnified structural diagram of point A in the middle.

[0027] In the diagram: 1. Main body of the device; 2. Feed pipe; 3. Servo motor; 4. Guide hopper; 5. Drive shaft; 6. Crushing blade; 7. Discharge port; 8. First sealing plate; 9. First fixing plate; 10. Insert plate; 11. Slot; 12. Screen frame; 13. Screen; 14. Discharge port; 15. Sealing gasket; 16. Second sealing plate; 17. Slide groove; 18. Collection box; 19. Support plate; 20. Support frame; 21. Shaking cloth; 22. Pneumatic vibrator; 23. Discharge port; 24. Control panel; 25. Air distribution pipe; 26. Air nozzle; 27. Air supply hose; 28. Pull rod; 29. ​​Baffle; 30. Pull plate; 31. Insertion hole; 32. Second fixing plate; 33. Insert rod; 34. Observation window; 35. Fixed blade. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of this utility model will be described below based on its overall structure. Example

[0030] A pulverizing and granulating device for tablet preparation, such as Figures 1-7 As shown, the device includes a main body 1. A servo motor 3 is mounted on the top of the main body 1, and the output end of the servo motor 3 is connected to a drive shaft 5 extending into the interior of the main body 1. The speed of the servo motor 3 is infinitely adjustable from 200 to 1000 rpm. Multiple crushing blades 6 are mounted on the outer wall of the drive shaft 5. Multiple fixed blades 35 are mounted inside the main body 1, and the fixed blades 35 and the crushing blades 6 are arranged alternately. An air distribution pipe 25 is provided inside the main body 1, and a pull rod 28 extending through the exterior of the main body 1 is fixed to one side of the air distribution pipe 25. An air supply hose 27 extending into the exterior of the main body 1 is connected to the other side of the air distribution pipe 25. A pull plate 30 is fixed to one end of the pull rod 28, and an insertion hole 31 is opened on the top of the pull plate 30. A second fixing plate 32 is fixed to the lower side of one side of the main body 1, and an extension extending into the insertion hole 31 is inserted into the second fixing plate 32. Insert rod 33 is adapted to insert hole 31. Multiple jet nozzles 26 are installed on the top of air distribution pipe 25. One-way valves are installed on the jet nozzles 26 to ensure that gas can be ejected from the jet nozzles 26 while preventing external materials from falling into the jet nozzles 26. The outlet of the jet nozzles 26 is designed with a tapered structure to enhance the airflow injection pressure. A baffle 29 is installed on one side of the inside of the device body 1. When the insert rod 33 is inserted into the insert hole 31, it can lock and limit the pull plate 30 to prevent the pull plate 30 from shifting at will and improve the stability of the pull plate 30 and the pull rod 28. Multiple jet nozzles 26 are equidistantly distributed on the top of air distribution pipe 25. Both the jet nozzles 26 and air distribution pipe 25 are located directly below the screen 13 so that compressed air can enter the jet nozzles 26 through air distribution pipe 25 and then be ejected through the jet nozzles 26 to push out the fine powder stuck in the screen holes and avoid blockage.

[0031] See Figures 1-6A support frame 20 is installed at the bottom inside the main body 1 of the device, and a shaking cloth 21 is installed on the top of the support frame 20. The shaking cloth 21 is made of silicone coated nylon cloth material, and a pneumatic vibrator 22 is installed at the bottom of the support frame 20. The pressure of the pneumatic vibrator 22 is between 0.4-0.6MPa. When the pneumatic vibrator 22 is working, it can generate high-frequency micro-vibration and transmit it to the shaking cloth 21 to break the material adhesion and push the material to slide along the inclined direction towards the discharge port 23. A discharge port 23 is opened on the lower side of one side of the main body 1 of the device. One side of the shaking cloth 21 is inclined downward along the direction of the discharge port 23 so that the material can be discharged through the discharge port 23 and prevent the material from accumulating on the shaking cloth 21.

[0032] See Figures 1-5 The device body 1 has an outlet 7 in the middle of one side. A first sealing plate 8 is inserted inside the outlet 7. A screen frame 12 is fixed to one side of the first sealing plate 8, and a screen 13 is installed inside the screen frame 12. The screen 13 is made of 316L stainless steel and is located directly below the crushing blade 6. The screen frame 12 is used to fix the screen 13. The screen 13 can screen qualified particles and retain coarse particles. The device body 1 has an outlet 14 in the middle of the other side. The screen 13 is inclined downward along the direction of the outlet 14. A sealing gasket 15 is inserted inside the outlet 14, and a second sealing plate 16 is installed on one side of the sealing gasket 15. The sealing gasket 15 is made of silicone rubber and is compatible with the outlet 14. The second sealing plate 16 and the sealing gasket 15 can seal the outlet 14 to prevent materials from being discharged from the outlet 14 at will.

[0033] See Figures 1-6 The device body 1 is connected to a feed pipe 2 on one side of the top. A guide hopper 4 is installed inside the upper part of the device body 1. The guide hopper 4 is located directly below the feed pipe 2. The material can enter the interior of the device body 1 through the feed pipe 2. The guide hopper 4 can concentrate and guide the material to the crushing blade 6 area, so that the crushing blade 6 can cut and crush the material. A control panel 24 is installed on the upper part of the outer surface of the device body 1. The control panel 24 is electrically connected to the servo motor 3 and the pneumatic vibrator 22 respectively, so that the operator can start or stop the servo motor 3 and the pneumatic vibrator 22 through the control panel 24. An observation window 34 made of polycarbonate material is also installed on the outer surface of the device body 1, so that the operator can observe the accumulation of material on the screen 13. Example

[0034] Based on the above embodiment 1, in order to improve the stability of the first sealing plate 8 and prevent the first sealing plate 8 from moving arbitrarily, the following structure will be set to limit the position of the first sealing plate 8.

[0035] Specifically, a slot 11 is provided on the other side of the first sealing plate 8, and a first fixing plate 9 is fixed on one side of the main body 1 of the device. An insert plate 10 extending into the slot 11 is inserted into the first fixing plate 9. The insert plate 10 is adapted to the slot 11. After the insert plate 10 is inserted into the slot 11, it can lock and limit the first sealing plate 8 to prevent the first sealing plate 8 from moving at will. Example

[0036] Based on the above embodiment 1, the following structure will be set up to facilitate the collection of materials on the screen 13.

[0037] Specifically, the other side of the main body 1 of the device is provided with a chute 17 and a support plate 19. A collection box 18 is provided on the top of the support plate 19, and one side of the collection box 18 is located inside the chute 17. The support plate 19 can support the collection box 18, and the collection box 18 can collect the material that slides down from the top of the screen 13.

[0038] The working principle of this utility model is as follows: First, before use, the staff can turn on the power supply and put the material to be processed into the main body 1 of the device through the feed pipe 2. The material is guided to the crushing blade 6 area through the guide hopper 4. The servo motor 3 is started through the control panel 24. The servo motor 3 drives the drive shaft 5 to rotate. The crushing blade 6 on the drive shaft 5 cooperates with the fixed blade 35 inside the main body 1 to cut and crush the material by impact, breaking the material to the initial particle size. The crushed material falls onto the screen 13. Fine particles that meet the particle size requirements fall through the screen holes onto the shaking cloth 21 below. Coarse particles that do not meet the particle size requirements remain on the surface of the screen 13 and slide down the inclined screen to the discharge port 14. The staff can periodically open the second sealing plate 16 to allow coarse particles to fall into the collection box 18 through the discharge port 14 for subsequent re-crushing. When the sieve 13 becomes clogged, causing a decrease in screening efficiency, the operator first pulls out the insert rod 33 on the second fixed plate 32 to release the limit of the pull plate 30; then pulls the pull rod 28 through the pull plate 30, causing the pull rod 28 to move the air distribution pipe 25; connects the external compressed air source to the air delivery hose 27, and the compressed air enters the air distribution pipe 25 through the air delivery hose 27, and then sprays out from directly below the sieve 13 through the equally spaced air nozzles 26, using the air pressure to push out the fine powder stuck in the sieve holes, thus clearing the sieve 13; after clearing, push the pull plate 30 to reset the air distribution pipe 25, insert the insert rod 33 into the insertion hole 31 to limit and fix the pull plate 30, and at the same time move the air distribution pipe 25 to one side of the baffle 29, using the baffle 29 to block the air nozzles 26 and prevent materials from entering the air nozzles 26; The pneumatic vibrator 22 is activated via the control panel 24. The pneumatic vibrator 22 generates high-frequency micro-vibrations and transmits them to the support frame 20 and the shaking cloth 21. Under the action of vibration, the shaking cloth 21 breaks the adhesion of the fine powder of the material, allowing the material to slide along the inclined shaking cloth 21 towards the discharge port 23, and finally be discharged from the device through the discharge port 23, thus completing the crushing and granulation process of the material.

[0039] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A pulverizing and granulating apparatus for tablet preparation, comprising a main body (1), characterized in that: A servo motor (3) is installed on the top of the main body (1) of the device, and the output end of the servo motor (3) is connected to a drive shaft (5) extending into the inside of the main body (1). Multiple crushing blades (6) are installed on the outer wall of the drive shaft (5). A gas distribution pipe (25) is provided inside the main body (1), and a pull rod (28) that extends through to the outside of the main body (1) is fixed on one side of the gas distribution pipe (25). A gas delivery hose (27) extending to the outside of the main body (1) is connected to the other side of the gas distribution pipe (25). One end of the pull rod (28) is fixed with a pull plate (30), and the top of the pull plate (30) is provided with an insertion hole (31). A second fixing plate (32) is fixed below one side of the device body (1). A rod (33) extending into the insertion hole (31) is inserted into the second fixing plate (32). Multiple air nozzles (26) are installed on the top of the air distribution pipe (25). A baffle (29) is installed on one side of the inside of the device body (1). Multiple fixed blades (35) are installed inside the device body (1).

2. The pulverizing and granulating apparatus for tablet preparation according to claim 1, characterized in that: A support frame (20) is installed inside the lower part of the main body (1) of the device, and a shaking cloth (21) is installed on the top of the support frame (20), and a pneumatic vibrator (22) is installed on the bottom of the support frame (20).

3. The pulverizing and granulating apparatus for tablet preparation according to claim 2, characterized in that: A discharge port (23) is provided on one side of the main body (1) of the device, and one side of the shaking cloth (21) is inclined downward along the direction of the discharge port (23).

4. The pulverizing and granulating apparatus for tablet preparation according to claim 1, characterized in that: The device body (1) has an outlet (7) in the middle of one side. A first sealing plate (8) is inserted inside the outlet (7). A screen frame (12) is fixed on one side of the first sealing plate (8), and a screen (13) is installed inside the screen frame (12).

5. The pulverizing and granulating apparatus for tablet preparation according to claim 4, characterized in that: A slot (11) is provided on the other side of the first sealing plate (8), and a first fixing plate (9) is fixed on one side of the main body (1) of the device, and an insert plate (10) extending into the slot (11) is inserted on the first fixing plate (9).

6. The pulverizing and granulating apparatus for tablet preparation according to claim 1, characterized in that: The device body (1) has a discharge port (14) at the middle position on the other side. A sealing gasket (15) is inserted inside the discharge port (14), and a second sealing plate (16) is installed on one side of the sealing gasket (15). The sealing gasket (15) is made of silicone rubber.

7. The pulverizing and granulating apparatus for tablet preparation according to claim 1, characterized in that: The other side of the main body (1) of the device is provided with a chute (17) and a support plate (19). A collection box (18) is provided on the top of the support plate (19), and one side of the collection box (18) is located inside the chute (17).

8. The pulverizing and granulating apparatus for tablet preparation according to claim 1, characterized in that: A feed pipe (2) is connected to the top side of the main body (1) of the device, and a guide hopper (4) is installed inside the upper part of the main body (1). The guide hopper (4) is located directly below the feed pipe (2).

9. The pulverizing and granulating apparatus for tablet preparation according to claim 1, characterized in that: A control panel (24) is installed on the outer surface of the main body (1) of the device. The control panel (24) is electrically connected to the servo motor (3) and the pneumatic vibrator (22).

10. A pulverizing and granulating apparatus for tablet preparation according to claim 1, characterized in that: Multiple jet nozzles (26) are equidistantly distributed on the top of the air distribution pipe (25), and both the jet nozzles (26) and the air distribution pipe (25) are located directly below the screen (13).

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