Automatic feeding mechanism of rotary tablet press

Abstract

The utility model relates to the technical field of tablet presses, and discloses an automatic feeding mechanism of a rotary tablet press, which comprises a stirring tank, a screening bin is fixedly connected to the bottom side of the stirring tank, a conveying pipe is fixedly connected in the screening bin, a screening component is arranged in the screening bin, an adding pipe is fixedly connected to the left side of the top end of the stirring tank, and a feeding pipe is fixedly connected to the right side of the top end of the stirring tank. A second motor is fixedly connected to the top side of the stirring tank, a first gear is fixedly connected to the input end of the second motor, two second gears are arranged on the inner side of the top of the stirring tank and connected with the first gear in a meshed mode, and a rotating shaft is fixedly connected to the middle of each second gear. According to the utility model, the two stirring blades rotate so as to stir product raw materials, the scraping plate scrapes off the raw materials attached to the inner wall of the stirring tank, so that the product raw materials are fully mixed, the screening plate can screen the product raw materials, and the phenomenon that caking exists in the product raw materials and influences tabletting of the tablet press is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of tablet presses, in particular to an automatic feeding mechanism for a rotary tablet press. Background Art

[0002] Tablet press is a kind of equipment used in pharmaceutical, chemical and food industries. It is mainly used to press powder or granular materials into tablets or granules of various shapes. It is mainly composed of silo, feeding system, pressing system and discharging system. It is one of the important equipment for producing tablets and granules solid preparations.

[0003] The powdered or granular raw materials to be compressed enter the compression area of ​​the tablet press through the feeding system. After entering the tableting chamber, the materials are squeezed and compressed by one or more pairs of rollers or dies. In this process, the materials are subjected to huge pressure, which gradually reduces the gaps between the particles, and the powdered materials are squeezed into sheets or granules;

[0004] The existing tablet press lacks pre-mixing equipment before adding materials. If the raw materials are directly added into the tablet press, it is difficult to ensure the uniformity of the raw materials, which will affect the efficiency and quality of the subsequent tablet pressing process. Therefore, an automatic feeding mechanism for a rotary tablet press is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an automatic feeding mechanism for a rotary tablet press, aiming to improve the problem that the tablet press in the prior art lacks a pre-mixing device before feeding.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A rotary tablet press automatic feeding mechanism comprises a stirring tank, a screening bin is fixedly connected to the bottom side of the stirring tank, a feeding pipe is fixedly connected to the inside of the screening bin, a screening assembly is arranged inside the screening bin, an adding pipe is fixedly connected to the left side of the top of the stirring tank, a motor 2 is fixedly connected to the top side of the stirring tank, a gear 1 is fixedly connected to the driving end of the motor 2, two gears 2 are arranged on the inner side of the top of the stirring tank, the gear 2 is meshed and connected with the gear 1, a rotating shaft is fixedly connected to the middle part of the gear 2, a stirring blade is fixedly connected to the outer periphery of the rotating shaft, a connecting rod is fixedly connected to the middle part of the gear 1, a mounting frame is fixedly connected to the bottom end of the connecting rod, scrapers are slidably connected to the inside of the left and right sides of the mounting frame, the scrapers abut against the inner wall of the stirring tank, a discharge pipe is fixedly connected to the bottom of the stirring tank, and a control valve is arranged on the outer periphery of the discharge pipe;

[0008] As a further description of the above technical solution:

[0009] The screening assembly comprises a motor 1, which is fixedly connected to the middle of the front side of the screening bin, a connecting shaft is fixedly connected to the driving end of the motor 1, two cams are fixedly connected to the outer periphery of the connecting shaft, a screening plate is arranged inside the screening bin, the cam abuts against the bottom side of the screening plate, and a discharge window is opened inside the left side of the screening bin;

[0010] As a further description of the above technical solution:

[0011] A limit plate is fixedly connected to one side of the scraper, and the limit plate is slidably connected to the inside of the installation frame. A plurality of evenly distributed springs are fixedly connected to the inside of the left and right sides of the installation frame, and one end of the spring is fixedly connected to one side of the limit plate;

[0012] As a further description of the above technical solution:

[0013] The left side of the sieve plate is rotatably connected to a support shaft 1, and the support shaft 1 is fixedly connected to the sieve bin;

[0014] As a further description of the above technical solution:

[0015] The right side of the screening plate is rotatably connected to a second support shaft, the front and rear sides of the second support shaft are fixedly connected to limit blocks, the front and rear sides of the screening bin are provided with limit slots, and the limit blocks are slidably connected to the inside of the limit slots;

[0016] As a further description of the above technical solution:

[0017] Two evenly distributed guide blocks are fixedly connected to the left part of the top side of the screening plate;

[0018] As a further description of the above technical solution:

[0019] The left side of the screening bin is abutted against a storage box, and the right side of the storage box is fixedly connected to two T-shaped sliders, and the T-shaped sliders are slidably connected to the inside of the screening bin;

[0020] As a further description of the above technical solution:

[0021] An auger is fixedly connected to the outer periphery of the connecting rod, and the auger is arranged inside the discharge pipe.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, after the product raw materials are added into the mixing tank through the adding tube, the motor 2 is started, and the driving end of the motor 2 can drive the gear 1 to rotate, and the rotation of the gear 1 drives the two gears 2 to rotate, and the two gears 2 respectively drive the two stirring blades to rotate through the two rotating shafts to stir the product raw materials. During the raw material mixing process, the gear 1 drives the installation frame to rotate through the connecting rod, so that the scraper inside the installation frame can scrape off the raw materials attached to the inner wall of the mixing tank, so that the product raw materials are fully mixed.

[0024] 2. In the utility model, after the product raw materials are mixed, they can enter the screening bin through the discharge pipe. The motor is started to drive the connecting shaft to rotate. The rotation of the connecting shaft can drive the two cams to rotate, thereby driving the screening plate to shake and screen the product raw materials on the top of the screening plate to prevent the product raw materials from agglomerating and affecting the tablet pressing of the tablet press. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic diagram of an automatic feeding mechanism of a rotary tablet press proposed by the utility model;

[0026] Figure 2 This is a structural schematic diagram of a stirring tank of an automatic feeding mechanism of a rotary tablet press proposed by the utility model;

[0027] Figure 3 This is a structural schematic diagram of a scraper of an automatic feeding mechanism of a rotary tablet press proposed by the utility model;

[0028] Figure 4 This is a structural schematic diagram of a screening bin of an automatic feeding mechanism of a rotary tablet press proposed by the utility model;

[0029] Figure 5 This is a structural schematic diagram of a T-shaped slider of an automatic feeding mechanism of a rotary tablet press proposed by the utility model;

[0030] Figure 6 The utility model is a schematic structural diagram of a limit block of an automatic feeding mechanism of a rotary tablet press.

[0031] Legend:

[0032] 1. Adding pipe; 2. Storage box; 3. Feeding pipe; 4. Motor 1; 5. Screening bin; 6. Mixing tank; 7. Motor 2; 8. Mixing blades; 9. Mounting frame; 10. Discharge pipe; 11. Auger; 12. Rotating shaft; 13. Connecting rod; 14. Gear 1; 15. Gear 2; 16. Spring; 17. Scraper; 18. Limiting plate; 19. Guide block; 20. Support shaft 1; 21. Screening plate; 22. Connecting shaft; 23. T-shaped slider; 24. Limiting block; 25. Support shaft 2; 26. Cam. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 1-Figure 3 , the utility model provides an embodiment: an automatic feeding mechanism of a rotary tablet press, including a stirring tank 6, the stirring tank 6 is used to provide space for stirring and mixing product raw materials, a screening bin 5 is fixedly connected to the bottom side of the stirring tank 6, the product raw materials after stirring can be screened inside the screening bin 5, the screening bin 5 is fixedly connected to a feeding pipe 3, the raw materials after screening can be transported to the tablet press through the feeding pipe 3, an addition pipe 1 is fixedly connected to the left side of the top of the stirring tank 6, the product raw materials are added into the stirring tank 6 through the addition pipe 1, the top side of the stirring tank 6 is fixedly connected to a motor 2 7, the motor 2 The driving end of the mixing tank 6 is fixedly connected with a gear 14, and the motor 2 is used to drive the gear 14 to rotate. Two gears 15 are arranged on the inner side of the top of the mixing tank 6. The gear 2 15 is meshed with the gear 14, and the gear 14 can drive the gear 2 15 to rotate. The middle of the gear 2 15 is fixedly connected with a rotating shaft 12, and the outer periphery of the rotating shaft 12 is fixedly connected with a stirring blade 8. The gear 2 15 can drive the stirring blade 8 to rotate through the rotating shaft 12. The stirring blade 8 can fully mix the product raw materials by rotating. The middle of the gear 14 is fixedly connected with a connecting rod 13, and the bottom end of the connecting rod 13 is fixedly connected with a mounting frame 9. The connecting rod 13 serves to connect the mounting frame 9 and the gear 14 to each other. The left and right sides of the mounting frame 9 are slidably connected with scrapers 17, which abut against the inner wall of the mixing tank 6. The mounting frame 9 is used to install the scraper 17, and the scraper 17 can scrape off the raw materials attached to the inner wall of the mixing tank 6. One side of the scraper 17 is fixedly connected to a limit plate 18, and the limit plate 18 is slidably connected to the inside of the mounting frame 9. The limit plate 18 is used to limit the movement of the scraper 17 to prevent the scraper 17 from falling off from the inside of the mounting frame 9. The left and right sides of the mounting frame 9 are fixedly connected to a plurality of evenly distributed springs 16. One end of the spring 16 is fixedly connected to one side of the limit plate 18. The spring 16 can push the scraper 17 to fit tightly against the inside of the mixing tank 6. A discharge pipe 10 is fixedly connected to the bottom of the mixing tank 6. A control valve is arranged on the periphery of the discharge pipe 10. The product raw materials after mixing can fall into the screening bin 5 through the discharge pipe 10. An auger 11 is fixedly connected to the periphery of the connecting rod 13. The auger 11 is arranged inside the discharge pipe 10. The rotation of the connecting rod 13 can drive the auger 11 to rotate. The rotation of the auger 11 can drive the product raw materials to move, thereby preventing the product raw materials from blocking the discharge pipe 10. The control valve is used to control the switch of the discharge pipe 10.

[0035] Reference Figure 1 , Figure 4 and Figure 6 A screening assembly is arranged inside the screening bin 5, and the screening assembly includes a motor 4, which is fixedly connected to the middle part of the front side of the screening bin 5. A connecting shaft 22 is fixedly connected to the driving end of the motor 4, and two cams 26 are fixedly connected to the outer periphery of the connecting shaft 22. A screening plate 21 is arranged inside the screening bin 5, and the cam 26 abuts against the bottom side of the screening plate 21. The motor 4 is used to drive the connecting shaft 22 to rotate, and the rotation of the connecting shaft 22 can drive the cam 26 to rotate. During the rotation of the cam 26, the screening plate 21 can be driven to shake, so as to screen the product raw materials to prevent the presence of agglomerates inside the product raw materials from affecting the tablet pressing machine. The left side of the screening plate 21 is rotatably connected to a support shaft 20, and the support shaft 20 is fixed Fixedly connected inside the screening bin 5, support shaft 1 20 is used to support the rotation of the screening plate 21, and the right side of the screening plate 21 is rotatably connected with support shaft 25, and the front and rear sides of the support shaft 25 are fixedly connected with limit blocks 24, and the support shaft 25 is used to install the limit blocks 24. Limit grooves are provided inside the front and rear sides of the screening bin 5, and the limit blocks 24 are slidably connected inside the limit grooves. The limit blocks 24 slide inside the limit grooves to limit the rotation of the screening plate 21, and two evenly distributed guide blocks 19 are fixedly connected to the left part of the top side of the screening plate 21. A discharge window is provided inside the left side of the screening bin 5, and the agglomerated product raw materials can move to the discharge window through the guide blocks 19 and move out of the screening bin 5 through the discharge window.

[0036] Reference Figure 1 , Figure 4 and Figure 5 A storage box 2 is abutted against the left side of the screening bin 5, and the storage box 2 is used to store the discharged raw material agglomerates. Two T-shaped sliders 23 are fixedly connected to the right side of the storage box 2. The T-shaped sliders 23 are slidably connected to the inside of the screening bin 5. The T-shaped sliders 23 are inserted into the inside of the screening bin 5 to connect the storage box 2 and the screening bin 5 to each other.

[0037] Working principle: different product raw materials are added into the mixing tank 6 through the adding tube 1, and then the motor 2 7 is started. The driving end of the motor 2 7 drives the gear 14 to rotate. The rotation of the gear 14 can drive the two gears 2 15 to rotate. The two gears 2 15 can drive the two mixing blades 8 to rotate respectively through the two rotating shafts 12. The rotation of the two mixing blades 8 can mix the product raw materials so that a variety of product raw materials are fully mixed. During the rotation of the gear 14, the mounting frame 9 can be driven to rotate through the connecting rod 13. The rotation of the mounting frame 9 can rotate the two scrapers 17 inside the mounting frame 9 so that the two scrapers 17 can scrape off the product raw materials attached to the inner wall of the mixing tank 6. After the raw materials are mixed, the discharge pipe 10 is opened through the control valve, and the raw materials fall into the screening bin 5 through the discharge pipe 10. The connecting rod 13 drives the auger 11 to rotate so that the auger 11 transports the raw materials to prevent the discharge pipe 10 from being blocked by the transportation of materials. After the raw material falls to the top of the screening plate 21, the motor 4 is started, and the motor 4 drives the connecting shaft 22 to rotate to rotate the two cams 26. The rotation of the two cams 26 can drive the screening plate 21 to shake, thereby screening the raw material. The agglomerated raw material will stay on the top of the screening plate 21, and the screening plate 21 will break the agglomerates. The broken raw material agglomerates will fall to the bottom of the screening bin 5, and the unbroken raw material will move along the guide block 19 and be discharged through the discharge window and finally collected by the storage box 2. The raw material at the bottom of the screening bin 5 can be transported to the tablet press through the feed pipe 3.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic feeding mechanism for a rotary tablet press, comprising a stirring tank (6), characterized in that: The bottom side of the stirring tank (6) is fixedly connected to a screening bin (5), the interior of the screening bin (5) is fixedly connected to a feed pipe (3), a screening assembly is arranged inside the screening bin (5), an addition pipe (1) is fixedly connected to the left side of the top of the stirring tank (6), a motor 2 (7) is fixedly connected to the top side of the stirring tank (6), a gear 1 (14) is fixedly connected to the driving end of the motor 2 (7), two gears 2 (15) are arranged on the inner side of the top of the stirring tank (6), the gears 2 (15) are meshingly connected with the gears 1 (14), and the The middle of the gear 2 (15) is fixedly connected to a rotating shaft (12), the outer periphery of the rotating shaft (12) is fixedly connected to a stirring blade (8), the middle of the gear 1 (14) is fixedly connected to a connecting rod (13), the bottom end of the connecting rod (13) is fixedly connected to a mounting frame (9), the left and right sides of the mounting frame (9) are slidably connected to scrapers (17), the scrapers (17) abut against the inner wall of the stirring tank (6), the bottom of the stirring tank (6) is fixedly connected to a discharge pipe (10), and a control valve is arranged on the outer periphery of the discharge pipe (10).

2. The automatic feeding mechanism of a rotary tablet press according to claim 1, characterized in that: The screening component comprises a motor (4), the motor (4) being fixedly connected to the middle of the front side of the screening bin (5), a connecting shaft (22) being fixedly connected to the driving end of the motor (4), two cams (26) being fixedly connected to the outer periphery of the connecting shaft (22), a screening plate (21) being arranged inside the screening bin (5), the cams (26) being abutted against the bottom side of the screening plate (21), and a discharge window being opened inside the left side of the screening bin (5).

3. The automatic feeding mechanism of a rotary tablet press according to claim 1, characterized in that: One side of the scraper (17) is fixedly connected to a limiting plate (18), and the limiting plate (18) is slidably connected to the inside of the installation frame (9). A plurality of evenly distributed springs (16) are fixedly connected to the inside of the left and right sides of the installation frame (9), and one end of the spring (16) is fixedly connected to one side of the limiting plate (18).

4. The automatic feeding mechanism of a rotary tablet press according to claim 2, characterized in that: The left side of the interior of the screening plate (21) is rotatably connected to a support shaft 1 (20), and the support shaft 1 (20) is fixedly connected to the interior of the screening bin (5).

5. The automatic feeding mechanism of a rotary tablet press according to claim 2, characterized in that: The right side of the screening plate (21) is rotatably connected to a second support shaft (25), and the front and rear sides of the second support shaft (25) are fixedly connected to limit blocks (24). The front and rear sides of the screening bin (5) are provided with limit grooves, and the limit blocks (24) are slidably connected inside the limit grooves.

6. The automatic feeding mechanism of a rotary tablet press according to claim 2, characterized in that: Two evenly distributed guide blocks (19) are fixedly connected to the left portion of the top side of the screening plate (21).

7. The automatic feeding mechanism of a rotary tablet press according to claim 1, characterized in that: The left side of the screening bin (5) is butted against a storage box (2), and the right side of the storage box (2) is fixedly connected to two T-shaped sliders (23), and the T-shaped sliders (23) are slidably connected inside the screening bin (5).

8. The automatic feeding mechanism of a rotary tablet press according to claim 1, characterized in that: An auger (11) is fixedly connected to the outer periphery of the connecting rod (13), and the auger (11) is arranged inside the discharge pipe (10).

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