Screening and conveying device for tablet production

Abstract

The utility model discloses a screening and conveying device for tablet production, and relates to the technical field of tablet screening and conveying. A top plate is fixedly mounted at the top of the support frame; a rectangular groove facilitating installation of the screening assembly is formed in the top plate. The screening assembly comprises a screening box. The bottom of the screening box is conical; a powder screening net is fixedly mounted in the screening box; a guide rod is arranged on the powder screening net; a feeding frame is fixedly mounted at one corner in the screening box; a plurality of rings are placed on the powder screening net; screening holes formed in the powder screening net are divided into first screening holes and second screening holes; during use, the feeding hopper is supported through the supporting rod, medicine particles are conveyed to the feeding frame through the feeding hopper, effective screening of the medicine particles large in size in the manufacturing process is achieved, the medicine particles conforming to the size fall into the multiple rings on the powder screening net through the feeding frame, and through vibration of the vibration motor, the medicine particles are screened through the feeding frame. And the multiple rings are sequentially and circularly moved and conveyed along the guide rods.

Description

Technical Field

[0001] This utility model specifically relates to the field of pharmaceutical particle screening and conveying technology, and specifically to a screening and conveying device for pharmaceutical particle production. Background Technology

[0002] In the production of drug granules, in order to ensure the quality and efficacy of the drugs, the granules need to be graded and sieved according to different particle sizes. For example, different sizes of granules may be suitable for patients of different ages and with different conditions. Precise particle size control helps to ensure the accuracy of drug dosage, thereby improving the therapeutic effect of the drug. At the same time, the uniformity of the granules also has an important impact on the dissolution and absorption rate of the drug. Sieving can make the granules more uniform in size, thereby ensuring a more stable release and absorption process of the drug in the body.

[0003] Existing drug screening devices typically employ manual screening or simple vibrating screening equipment. Manual screening is labor-intensive, inefficient, and prone to errors. Traditional vibrating screening equipment may experience incomplete screening and particle clogging when processing large quantities of drug particles, affecting screening efficiency and production efficiency.

[0004] A search revealed that Chinese Patent Publication No. CN202321478682.8 discloses an automatic granule dispensing device; it includes a housing, inside which a first filter plate and a second filter plate are fixedly arranged, the first filter plate being located on top of the second filter plate and spaced apart, both the first and second filter plates having several through holes, a rotating shaft being rotatably arranged at the bottom of the inner wall of the housing, several blades being fixedly arranged on the outer ring of the rotating shaft, the rotating shaft passing through the first and second filter plates, and baffle assemblies being hinged to the bottom of the housing, the first filter plate, and the second filter plate, with a granule outlet fixedly arranged on the outside of each baffle assembly;

[0005] In the aforementioned patent, the device uses a rotating shaft to drive two blades to agitate the drugs on two filter plates during drug sieving. This allows drugs of different sizes to fall from the first filter plate onto the second filter plate. Each filter plate has a drug discharge groove at its bottom. During the blade rotation, drug particles may become stuck in the holes of the filter plates. The rotation of the blades may then damage these particles, failing to maintain their original size and resulting in defective particles that compromise the drug's efficacy. Utility Model Content

[0006] The purpose of this invention is to provide a screening and conveying device for pharmaceutical granule production. In this device, pharmaceutical granules are conveyed to a feeding rack via a feeding hopper. This feeding rack effectively screens out larger-sized pharmaceutical granules. During feeding, the pharmaceutical granules fall into a ring. The vibration of a vibrating motor causes the ring to drive the screening of the pharmaceutical granules during the conveying process. Powder mixed in with the pharmaceutical granules is effectively screened out through the first screening hole on the powder screen. The pharmaceutical granules are then conveyed to the second screening hole by the ring, achieving effective screening of pharmaceutical granules of different sizes. The inside of the distribution rack and the inner wall of the screening box are separated by a side plate at the bottom of the distribution rack, which effectively prevents the powder and pharmaceutical granules from mixing again, thus effectively ensuring the quality of screening and solving the problems mentioned in the background art.

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

[0008] A screening and conveying device for pharmaceutical granule production includes a support frame; a top plate is fixedly installed on the top of the support frame; a rectangular groove is provided on the top plate to facilitate the installation of a screening component, which includes a screening box; the bottom of the screening box is conical; a sieve screen is fixedly installed inside the screening box; a guide rod is provided on the sieve screen; a feeding rack is fixedly installed at one corner inside the screening box; the feeding rack first screens relatively large pharmaceutical granules to prevent them from falling onto the sieve screen and damaging their size;

[0009] Multiple rings are placed on the powder screening screen; the screening holes on the powder screening screen are divided into first screening holes and second screening holes; the first screening hole is located below the feeding frame, so that after the feeding is completed, the medicine particles are first transferred to the first screening hole through the sequential circulation of the rings, so as to achieve effective screening of the powder in the medicine particles. The powder is connected to the negative pressure device through the first material pipe to achieve the effect of negative pressure extraction.

[0010] As a further technical solution of this utility model, a material distribution and conveying component is fixedly installed at the bottom of the sieve mesh; the material distribution and conveying component includes a material distribution frame; the bottom of the material distribution frame is conical; the material distribution frame is located at the bottom of the second sieve hole; a second material pipe is fixedly installed at the bottom of the material distribution frame; the second sieve hole achieves the sieving effect of different sized medicinal particles, and smaller sized medicinal particles are collected centrally through the second material pipe.

[0011] As a further technical solution of this utility model, a support rod is also fixedly installed on the top plate; the support rod is fixedly installed with the feeding hopper; the feeding hopper is located above the feeding frame;

[0012] As a further technical solution of this utility model, a vibration motor is fixedly installed at both ends of the screening box, and the screening box is fixedly installed with the connecting assembly; the connecting assembly includes an L-shaped connecting plate; the L-shaped connecting plate is fixedly installed with the top crossbeam of the support frame; a slide rod is slidably installed on the L-shaped connecting plate; the end of the slide rod away from the L-shaped connecting plate is fixedly installed with the screening box through a pad; the slide rod is slidably installed with the L-shaped connecting plate, and a spring sleeved on the slide rod between the L-shaped connecting plate and the pad, under the action of the vibration motor, enables the slide rod to drive the screening box up and down through the pad.

[0013] As a further technical solution of this utility model, a spring is sleeved on the slide rod between the L-shaped connecting plate and the pad block;

[0014] As a further technical solution of this utility model, a first material pipe is provided on the conical surface at the bottom of the screening box; the first material pipe is located at the bottom of the first screening hole; the cavity at the bottom of the first screening hole is separated from the inside of the material distribution frame, which effectively avoids the screening powder from mixing with the medicine particles again.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In use, the present invention supports the feeding hopper through the support rod, and the medicine granules are transferred to the feeding rack through the feeding hopper. This enables effective screening of larger medicine granules during the production process. Medicine granules that meet the size requirements fall into multiple rings on the sieve screen through the feeding rack. The vibration of the vibrating motor enables the multiple rings to move and be transferred sequentially along the guide rod.

[0017] 2. In this utility model, during the movement of the ring, the ring first passes through the first screening hole to effectively screen the powder mixed in with the medicine particles to the bottom of the sieve screen. It is then connected to the first material pipe through a negative pressure device to extract the powder. During the movement of the ring along the guide rod, it passes through the second screening hole to screen medicine particles of different sizes. Medicine particles smaller than the second screening hole are collected centrally through the second material pipe.

[0018] 3. In this utility model, the vibration motors installed at both ends of the screening box enable the screening box to swing left and right while simultaneously moving up and down via a spring after being connected to the slide rod. This effectively ensures that the multiple rings placed on the sieve screen are circulated and screened sequentially along the guide rod, thereby effectively ensuring the screening effect of the medicine particles. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This utility model Figure 1Another perspective structural diagram.

[0021] Figure 3 This utility model Figure 1 A schematic diagram of the bottom structure.

[0022] Figure 4 This utility model Figure 3 Another perspective structural diagram.

[0023] Figure 5 This utility model Figure 3 Assembly diagram of the screening component and the connecting component.

[0024] Figure 6 This utility model Figure 5 Side view.

[0025] Figure 7 This utility model Figure 6 The main view.

[0026] Figure 8 This utility model Figure 6 AA sectional view.

[0027] Figure 9 This utility model Figure 7 BB cross-sectional view.

[0028] Figure 10 This utility model Figure 5 Another perspective on the breakdown diagram.

[0029] Figure 11 This utility model Figure 10 A schematic diagram of the assembly of the material transfer component and the sieve screen.

[0030] In the diagram: 1-Support frame, 2-Top plate, 3-Feeding hopper, 4-Support rod, 5-Screening assembly, 50-Screening box, 51-Feeding rack, 52-Guide rod, 53-Ring, 54-Powder screen, 6-Vibration motor, 7-Material distribution and transmission assembly, 70-First material pipe, 71-Second material pipe, 72-Material distribution rack, 8-Connecting assembly, 80-L-shaped connecting plate, 81-Slide rod, 82-Spring. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-11 In this embodiment of the present invention, a sieving and conveying device for producing pharmaceutical granules includes a support frame 1; a top plate 2 is fixedly installed on the top of the support frame 1; a rectangular groove is provided on the top plate 2 to facilitate the installation of a sieving assembly 5, the sieving assembly 5 including a sieving box 50; the bottom of the sieving box 50 is conical; a powder sieving screen 54 is fixedly installed inside the sieving box 50; a guide rod 52 is provided on the powder sieving screen 54; and a feeding rack 51 is fixedly installed at one corner inside the sieving box 50.

[0033] Multiple rings 53 are placed on the sieve screen 54; the sieving holes on the sieve screen 54 are divided into first sieving holes and second sieving holes.

[0034] The bottom of the sieve 54 is fixedly installed with a material distribution and conveying component 7; the material distribution and conveying component 7 includes a material distribution frame 72; the bottom of the material distribution frame 72 is conical; the material distribution frame 72 is located at the bottom of the second sieve hole; the bottom of the material distribution frame 72 is fixedly installed with a second material pipe 71.

[0035] By adopting the above technical solution, during use, the support rod 4 supports the feeding hopper 3, and the medicine granules are transferred to the feeding rack 51 through the feeding hopper 3. This enables effective screening of larger medicine granules during the production process. Medicine granules that meet the size requirements fall into multiple rings 53 on the sieve screen 54 through the feeding rack 51. The vibration of the vibration motor 6 enables the multiple rings 53 to move and be transferred sequentially along the guide rod 52.

[0036] In this embodiment, a support rod 4 is also fixedly installed on the top plate 2; the support rod 4 is fixedly installed with the feeding hopper 3; the feeding hopper 3 is located above the feeding frame 51;

[0037] In this embodiment, vibration motors 6 are fixedly installed at both ends of the screening box 50, and the screening box 50 is fixedly installed with the connecting assembly 8; the connecting assembly 8 includes an L-shaped connecting plate 80; the L-shaped connecting plate 80 is fixedly installed with the top crossbeam of the support frame 1; a slide rod 81 is slidably installed on the L-shaped connecting plate 80; the end of the slide rod 81 away from the L-shaped connecting plate 80 is fixedly installed with the screening box 50 through a pad;

[0038] By adopting the above technical solution, during the movement of the ring 53, the ring 53 first passes through the first screening hole to effectively screen the powder mixed in the drug particles to the bottom of the sieve screen 54. It is then connected to the first material pipe 70 through the negative pressure device to extract the powder. During the movement of the ring 53 along the guide rod 52, it passes through the second screening hole to screen the drug particles of different sizes. The drug particles smaller than the second screening hole are collected centrally through the second material pipe 71.

[0039] Furthermore, a spring 82 is fitted on the slide rod 81 between the L-shaped connecting plate 80 and the pad block;

[0040] In this embodiment, a first material pipe 70 is provided on the conical surface at the bottom of the screening box 50; the first material pipe 70 is located at the bottom of the first screening hole;

[0041] By adopting the above technical solution, when the vibration motors 6 installed at both ends of the screening box 50 are working, the screening box 50 swings left and right, and the screening box 50 moves up and down through the connection between it and the slide bar 81 and the spring 82. This effectively ensures that the multiple rings 53 placed on the sieve screen 54 are circulated and screened in sequence along the guide rod 52, thereby effectively ensuring the screening effect of the medicine particles.

[0042] The working principle of this utility model is as follows: When in use, the support rod 4 supports the feeding hopper 3, and the medicine granules are transferred to the feeding rack 51 through the feeding hopper 3. This enables effective screening of the larger medicine granules during the production process. Medicine granules that meet the size requirements fall into multiple rings 53 on the sieve screen 54 through the feeding rack 51. The vibration of the vibration motor 6 enables the multiple rings 53 to move and be transferred sequentially along the guide rod 52.

[0043] During the movement of the ring 53, the ring 53 first passes through the first screening hole to effectively screen the powder mixed in the drug particles to the bottom of the sieve screen 54. It is then connected to the first feed pipe 70 through a negative pressure device to extract the powder. During the movement of the ring 53 along the guide rod 52, it passes through the second screening hole to screen the drug particles of different sizes. The drug particles smaller than the second screening hole are collected centrally through the second feed pipe 71.

[0044] When the vibration motors 6 installed at both ends of the screening box 50 are working, the screening box 50 swings left and right. At the same time, the screening box 50 moves up and down through the connection between it and the slide rod 81 and the spring 82. This effectively ensures that the multiple rings 53 placed on the sieve screen 54 are circulated and screened in sequence along the guide rod 52, thereby effectively ensuring the screening effect of the medicine particles.

[0045] 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.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A screening and conveying device for producing pharmaceutical granules, characterized in that: The system includes a support frame (1); a top plate (2) is fixedly installed on the top of the support frame (1); a rectangular groove is provided on the top plate (2) to facilitate the installation of the screening assembly (5); the screening assembly (5) includes a screening box (50); the bottom of the screening box (50) is conical; a powder screening mesh (54) is fixedly installed inside the screening box (50); a guide rod (52) is provided on the powder screening mesh (54); and a feeding rack (51) is fixedly installed at one corner inside the screening box (50). Multiple rings (53) are placed on the sieve (54); the sieve holes on the sieve (54) are divided into first sieve holes and second sieve holes.

2. The sieving and conveying device for granule production according to claim 1, characterized in that: The bottom of the sieve (54) is fixedly installed with a material distribution and conveying component (7); the material distribution and conveying component (7) includes a material distribution frame (72); the bottom of the material distribution frame (72) is conical; the material distribution frame (72) is located at the bottom of the second sieve hole; the bottom of the material distribution frame (72) is fixedly installed with a second material pipe (71).

3. The sieving and conveying device for granule production according to claim 1, characterized in that: A support rod (4) is also fixedly installed on the top plate (2); the support rod (4) is fixedly installed with the feeding hopper (3); the feeding hopper (3) is located above the feeding frame (51).

4. The sieving and conveying device for granule production according to claim 3, characterized in that: Vibration motors (6) are fixedly installed at both ends of the screening box (50), and the screening box (50) is fixedly installed with the connecting assembly (8); the connecting assembly (8) includes an L-shaped connecting plate (80); the L-shaped connecting plate (80) is fixedly installed with the top crossbeam of the support frame (1); a slide rod (81) is slidably installed on the L-shaped connecting plate (80); the end of the slide rod (81) away from the L-shaped connecting plate (80) is fixedly installed with the screening box (50) through a pad.

5. A sieving and conveying device for granule production according to claim 4, characterized in that: A spring (82) is fitted on the slide rod (81) between the L-shaped connecting plate (80) and the pad block.

6. The sieving and conveying device for granule production according to claim 5, characterized in that: A first material pipe (70) is provided on the conical surface at the bottom of the screening box (50); the first material pipe (70) is located at the bottom of the first screening hole.

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