A powder filtration device for tablet dosage forms

Abstract

This utility model discloses a powder sieving and filtering device for tablet dosage forms, comprising: a tablet press, a track-based powder sieving mechanism, and a collection component. The tablet outlet of the tablet press is connected to the feed end of the track-based powder sieving mechanism. The track-based powder sieving mechanism includes a sieving inclined track, a coarse sieve and a fine sieve disposed above the sieving inclined track, and track side baffles located on both sides of the sieving inclined track. A discharge baffle is provided at the end of the sieving inclined track. The collection component is correspondingly disposed below the sieving inclined track. In this utility model, through the inclined and anti-slip texture design of the sieving inclined track, combined with the multi-stage sieving structure of the coarse sieve, fine sieve, and classification sieve, efficient and precise separation of powder and fragments on the surface of tablets is achieved, effectively improving sieving efficiency and product purity.

Description

Technical Field

[0001] This utility model relates to the field of tablet manufacturing technology, specifically a sieving and filtering device for tablet dosage forms. Background Technology

[0002] A search revealed Chinese patent publication number CN109109364B, which discloses tablet production equipment and a tablet production system. During the production process of this equipment, after tablet compression, excess powder often adheres to the surface of the tablets. If this powder is not effectively sieved and filtered, it will affect the quality and appearance of the tablets, and may even cause clumping during subsequent packaging and storage. Currently, traditional powder sieving methods mostly employ manual screening or simple mechanical vibrating sieves. Manual screening is inefficient, labor-intensive, and prone to human contamination; simple mechanical vibrating sieves have limited sieving accuracy and cannot effectively separate powders of different particle sizes. Utility Model Content

[0003] The purpose of this invention is to provide a sieving and filtering device for tablet dosage forms in order to solve the problems mentioned above.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a tablet sieving and filtering device, comprising: a tablet press, a track sieving mechanism, and a collection component. The tablet outlet of the tablet press is connected to the feed end of the track sieving mechanism. The track sieving mechanism includes a sieving inclined track, a coarse sieving screen and a fine sieving screen disposed above the sieving inclined track, and track side baffles located on both sides of the sieving inclined track. A discharge baffle is disposed at the end of the sieving inclined track. The collection component is disposed correspondingly below the sieving inclined track.

[0005] As a further embodiment of this utility model: the collection component includes a powder collection box and a fragment collection box, a classification inclined track is provided below the powder screening inclined track, a classification screen is installed on the classification inclined track, the classification screen diverts the material falling from the powder screening inclined track to the powder collection box and the fragment collection box, and a discharge port is provided on the side of both the powder collection box and the fragment collection box.

[0006] As a further embodiment of this utility model: the coarse sieve and the fine sieve are arranged sequentially from top to bottom above the sieve inclined track, and the aperture of the coarse sieve is larger than that of the fine sieve.

[0007] As a further embodiment of this utility model: the track side baffle is arranged perpendicularly to the sieving inclined track to limit the movement range of the tablets on the sieving inclined track, and the track side baffle is fixedly connected to the sieving inclined track through a support frame.

[0008] As a further improvement of this utility model, both the powder collection box and the fragment collection box are provided with a viewing window on their sides for observing the powder storage status inside the box.

[0009] As a further improvement of this utility model: the sorting sieve is inclined, and its sieve hole diameter is smaller than that of the fine powder sieve.

[0010] As a further improvement of this utility model: the feed end of the sieve inclined track is higher than the discharge end, forming an inclination angle of 3°-15°, and the track surface is provided with anti-slip texture.

[0011] As a further improvement of this utility model, the bottom of the fragment collection box is provided with a drawer-type cleaning structure, which facilitates centralized processing of the screened tablet fragments.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes the inclined and anti-slip textured design of the sieving track, combined with a multi-stage sieving structure consisting of a coarse sieve, a fine sieve, and a classification sieve, to achieve efficient and precise separation of powder and fragments from the surface of tablets, effectively improving sieving efficiency and product purity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a sieving and filtering device for a tablet dosage form as described in this utility model;

[0015] Figure 2 This is a front view of the sieving and filtering device for a tablet dosage form described in this utility model;

[0016] Figure 3 This is a schematic diagram showing the disassembled structure of a powder sieving and filtering device for a tablet dosage form according to the present invention;

[0017] Figure 4 This is a schematic diagram of the collection component in a sieving and filtering device for a tablet dosage form as described in this utility model.

[0018] In the diagram: 1. Tableting machine; 2. Track-based powder screening mechanism; 21. Inclined powder screening track; 22. Fine powder screening screen; 23. Coarse powder screening screen; 24. Feed baffle; 3. Collection assembly; 31. Powder collection box; 32. Fragment collection box; 33. Discharge port; 34. Sorting inclined track; 35. Sorting screen; 36. Visual observation window; 4. Track side baffle; 5. Support frame. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are 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," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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. The embodiments of this utility model will be described below based on its overall structure.

[0021] Reference Figures 1 to 4 In this embodiment of the present invention, a tablet sieving and filtering device includes: a tablet press 1, a track sieving mechanism 2, and a collection component 3. The tablet outlet of the tablet press 1 is connected to the feed end of the track sieving mechanism 2. The track sieving mechanism 2 includes a sieving inclined track 21, a coarse sieving screen 23 and a fine sieving screen 22 disposed above the sieving inclined track 21, and track side baffles 4 located on both sides of the sieving inclined track 21. A discharge baffle 24 is disposed at the end of the sieving inclined track 21. The collection component 3 is disposed correspondingly below the sieving inclined track 21. After the tablet press 1 compresses the tablet, the tablet enters the sieving inclined track 21 through the tablet outlet. The feed end of the sieving inclined track 21 is higher than the discharge end and has anti-slip texture on its surface. The tablet slides down the track under the action of gravity. The track side baffles 4 are fixed by a support frame 5 and perpendicular to the track, restricting the lateral movement of the tablet and ensuring that it travels along the center line of the track.

[0022] The collection component 3 includes a powder collection box 31 and a fragment collection box 32. A sorting inclined track 34 is provided below the sieving inclined track 21, and a sorting screen 35 is installed on the sorting inclined track 34. The sorting screen 35 diverts the material falling from the sieving inclined track 21 to the powder collection box 31 and the fragment collection box 32. Both the powder collection box 31 and the fragment collection box 32 are provided with discharge ports 33 on their sides. When the tablets slide on the sieving inclined track 21, the powder on their surface falls off due to vibration or shaking. The coarse sieving screen 23 first separates the coarse powder particles, and the fine powder particles then fall below through the fine sieving screen 22. The remaining tablets continue to slide until they are blocked and turned by the discharge baffle 24. The falling powder and fragments enter the sorting inclined track 34, where the sorting screen 35 further filters them. The qualified fine powder falls into the powder collection box 31 and is recovered through the discharge port 33. The fragments slide along the screen into the fragment collection box 32, and the drawer-type structure at the bottom facilitates centralized cleaning.

[0023] The coarse sieve 23 and the fine sieve 22 are arranged sequentially from top to bottom above the sieve inclined track 21. The sieve aperture of the coarse sieve 23 is larger than that of the fine sieve 22. Through multi-stage sieving, the powder particle size is accurately classified, thus improving the sieving accuracy.

[0024] The track side baffle 4 is set perpendicularly to the sieving inclined track 21 to limit the movement range of the tablets on the sieving inclined track 21. The track side baffle 4 is fixedly connected to the sieving inclined track 21 through the support frame 5 to prevent the tablets from shifting or falling and to ensure the stability of sieving.

[0025] Both the powder collection box 31 and the fragment collection box 32 are equipped with a viewing window 36 on their sides, which allows operators to monitor the status of the materials inside the box in real time and clean or replace the containers in a timely manner.

[0026] The sorting sieve 35 is inclined, and its sieve aperture is smaller than that of the fine powder sieve 22. It accelerates the flow separation by gravity and achieves secondary filtration of fine powder, ensuring that impurities are completely separated from qualified powder.

[0027] The feed end of the sieving inclined track 21 is higher than the discharge end, forming an inclination angle of 3°-15°. The track surface is provided with anti-slip texture. It uses gravity to push the tablets down and friction to control the speed, extending the sieving time to ensure that the powder is fully removed.

[0028] The bottom of the debris collection box 32 is equipped with a drawer-type cleaning structure, which can reduce manual intervention, improve cleaning efficiency, and meet the requirements of clean production.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] The working principle of this utility model is as follows: The tablets enter the sieving inclined track 21 from the tablet outlet of the tablet press 1. Under the action of the 3°-15° inclination angle and anti-slip texture, the tablets slide down the track. The side baffle 4 of the track restricts their lateral movement. The tablets first pass through the fine sieving screen 22, and the fine powder particles fall below. Then, they pass through the coarse sieving screen 23, and the broken tablet fragments fall below. The falling powder and fragments enter the classification inclined track 34 and are diverted by the classification screen 35. The qualified fine powder falls into the powder collection box 31 and is recovered through the discharge port 33. The fragments slide into the fragment collection box 32 and are cleaned by the drawer-type structure. The operator monitors the material status through the visual observation window 36 on the side of the powder collection box 31 and the fragment collection box 32. The tablets continue to slide until they are blocked by the feeding baffle 24 and turn to enter the subsequent process.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for filtering dust from a tablet dosage form, characterized in that include: The device includes a tablet press (1), a track sieving mechanism (2), and a collection component (3). The tablet outlet of the tablet press (1) is connected to the feed end of the track sieving mechanism (2). The track sieving mechanism (2) includes a sieving inclined track (21), a coarse sieving screen (23) and a fine sieving screen (22) set above the sieving inclined track (21), and track side baffles (4) located on both sides of the sieving inclined track (21). A discharge baffle (24) is set at the end of the sieving inclined track (21). The collection component (3) is set below the sieving inclined track (21).

2. A screening device for powder of tablet dosage form according to claim 1, characterized in that, The collection component (3) includes a powder collection box (31) and a fragment collection box (32). A classification track (34) is provided below the powder screening track (21). A classification screen (35) is installed on the classification track (34). The classification screen (35) diverts the material falling from the powder screening track (21) to the powder collection box (31) and the fragment collection box (32). Both the powder collection box (31) and the fragment collection box (32) have discharge ports (33) on their sides.

3. A device for filtering dust from a tablet dosage form according to claim 1, characterized in that The coarse sieve (23) and fine sieve (22) are arranged in order from top to bottom above the sieve inclined track (21), and the aperture of the coarse sieve (23) is larger than that of the fine sieve (22).

4. A screening device for powder of tablet dosage form according to claim 1, characterized in that, The track side baffle (4) is set perpendicularly to the sieving inclined track (21) to limit the movement range of the tablets on the sieving inclined track (21). The track side baffle (4) is fixedly connected to the sieving inclined track (21) through the support frame (5).

5. A screening device for powder of tablet dosage form according to claim 2, characterized in that, Both the powder collection box (31) and the fragment collection box (32) are provided with a viewing window (36) on their sides for observing the powder storage status inside the box.

6. The tablet sieving and filtering device according to claim 2, characterized in that, The sorting screen (35) is inclined, and its screen hole diameter is smaller than that of the fine powder screen (22).

7. A device for filtering dust from a tablet dosage form according to claim 1, characterized in that The feed end of the sieve track (21) is higher than the discharge end, forming an inclination angle of 3°-15°, and the track surface is provided with anti-slip texture.

8. The tablet sieving and filtering device according to claim 2, characterized in that, The bottom of the fragment collection box (32) is equipped with a drawer-type cleaning structure, which facilitates centralized processing of the screened tablet fragments.

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