Double-layer low-dose tablet press

Abstract

The utility model discloses a double-layer low-dose tablet press which comprises tablet pressing equipment, a discharging assembly is arranged on the side face of the tablet pressing equipment, the discharging assembly comprises a first discharging port and a second discharging port, the first discharging port corresponds to the second discharging port in parallel, an inclined plate is arranged at the top end in the first discharging port, and the top end in the second discharging port corresponds to the inclined plate. The bottom end of the inclined plate is connected with the second discharging opening, the bottom end of the second discharging opening is fixedly connected with an inclined opening, a material distributing assembly is arranged in the inclined opening, and by designing the first discharging opening, the second discharging opening and the material distributing assembly, materials can be subjected to double purification, and the problems of sheet bed powder sticking and cross contamination among batches are thoroughly solved; and the health and safety standards of low-dose tablets are met.

Description

Technical Field

[0001] This utility model relates to the field of tablet press technology, specifically a double-layer low-dose tablet press. Background Technology

[0002] A tablet press is a mechanical device that compresses powdered or granular raw materials into tablets of a fixed shape under high pressure. Its core working principle is to complete the filling, compression, and ejection processes through the coordinated action of the punching and die system, ultimately forming tablets.

[0003] In existing double-layer low-dose tablet presses, the material only undergoes a single coarse filtration. The residual fine powder is scattered when falling onto the tablet bed, causing powder to adhere to the bottom of the first layer of tablets. At the same time, the powder easily accumulates on the surface of the discharge scraper, causing cross-contamination between batches. For low-dose tablets, even a trace amount of powder contamination may lead to excessive levels of active ingredients, violating production standards. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the problems mentioned above and / or existing tablet presses, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0007] A tablet press with two layers and low dosage includes a tableting device. A feeding assembly is provided on the side of the tableting device. The feeding assembly includes a first feeding port and a second feeding port. The first feeding port and the second feeding port are parallel and corresponding. An inclined plate is provided at the top of the inside of the first feeding port. The bottom end of the inclined plate is connected to the second feeding port. An inclined opening is fixedly connected to the bottom end of the second feeding port. A dispensing assembly is provided inside the inclined opening.

[0008] As a preferred embodiment of the tablet double-layer low-dose tableting machine described in this utility model, the surface of the inclined plate is provided with a plurality of first filter grooves.

[0009] As a preferred embodiment of the tablet double-layer low-dose tablet press described in this utility model, a plurality of second filter grooves are provided at the bottom end of the inclined port.

[0010] As a preferred embodiment of the tablet double-layer low-dose tableting machine of this utility model, the dispensing assembly includes a rotating shaft, which is rotatably installed in the middle of the inclined port. Four dispensing plates are evenly installed on the surface of the rotating shaft. A stepper motor is provided on the outer surface of the inclined port, and the output end of the stepper motor is fixedly connected to the rotating shaft.

[0011] In a preferred embodiment of the tablet double-layer low-dose tablet press described in this utility model, the second filter groove is located directly below the dispensing plate, and the end of the dispensing plate is arc-shaped.

[0012] As a preferred embodiment of the tablet double-layer low-dose tablet press described in this utility model, a rectangular groove is provided on the upper surface of the inclined opening, a blowing head is installed inside the rectangular groove, and an air pump is provided on the outside of the tablet press. The output end of the air pump is connected to the blowing head through an air pipe.

[0013] As a preferred embodiment of the tablet double-layer low-dose tableting machine described in this utility model, a top frame is connected to the top of the first feeding port and the second feeding port.

[0014] As a preferred embodiment of the tablet double-layer low-dose tablet press described in this utility model, the top frame has protruding surfaces at both ends near the surface of the tablet press, and the surfaces of the protruding surfaces are connected to the tablet press by positioning bolts.

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

[0016] The top frame connects the top of the first and second feeding ports to form an integrated rigid frame. It is fixed to the tablet pressing equipment by positioning bolts on the protruding surface. Its rigidity is higher than that of traditional buckles, which can resist equipment vibration and prevent the feeding components from shifting in whole or in part. The tightness of the bolts can be finely adjusted during installation to prevent material spillage caused by misalignment.

[0017] The four 90° spaced distribution plates in the distribution assembly form an independent distribution space with the same volume with the inner wall of the inclined port, ensuring precise isolation and distribution of the two layers of materials and avoiding cross-contamination. At the same time, the rotation of the distribution plates can clean the residual powder on the inner wall of the inclined port, and with the directional airflow of the blowing head, it can block the cross-contamination of powder at the layer interface from the source. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of a double-layer low-dose tablet press according to the present invention;

[0020] Figure 2 This utility model relates to a double-layer low-dose tablet compressor. Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the internal structure of the feeding assembly of a double-layer low-dose tablet press according to the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the feeding assembly of a double-layer low-dose tablet press according to this utility model from another perspective;

[0023] Figure 5 This utility model relates to a double-layer low-dose tablet compressor. Figure 4 Enlarged view of point B in the middle.

[0024] In the diagram: 1. Tableting equipment; 2. Feeding assembly; 3. First feeding port; 4. Second feeding port; 5. Inclined plate; 6. First filter tank; 7. Inclined opening; 8. Top frame; 9. Second filter tank; 10. Distribution plate; 11. Stepper motor; 12. Rectangular groove; 13. Blowing head. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Please see Figures 1-5 This utility model provides a technical solution:

[0030] A double-layer low-dose tablet press includes a tableting device 1. A feeding assembly 2 is provided on the side of the tableting device 1. The feeding assembly 2 includes a first feeding port 3 and a second feeding port 4, which are parallel and corresponding to each other. An inclined plate 5 is provided at the top of the first feeding port 3. The inclined structure of the inclined plate 5 and the inclined port 7 provides continuous guiding force for the material, preventing the material from accumulating at the interface between the first feeding port 3, the second feeding port 4 and the inclined port 7. The bottom end of the inclined plate 5 is connected to the second feeding port 4, and the bottom end of the second feeding port 4 is fixedly connected to the inclined port 7. A dispensing assembly is provided inside the inclined port 7. By designing the first feeding port 3, the second feeding port 4 and the dispensing assembly, the material can be purified twice, completely eliminating the problems of powder contamination on the tablet bed and cross-contamination between batches, which meets the hygiene and safety standards for low-dose tablets.

[0031] The inclined plate 5 has multiple first filter grooves 6 on its surface. The first filter grooves 6 perform the initial filtration of powder impurities to ensure the purity of the material after tableting when it is discharged, and reduce the defect rate caused by impurities.

[0032] Multiple second filter tanks 9 are provided at the bottom of the inclined port 7. The second filter tanks 9 further filter powder impurities, further reducing the defect rate caused by impurities.

[0033] The material dispensing assembly includes a rotating shaft, which is rotatably installed in the middle of the inclined port 7. Four dispensing plates 10 are evenly installed on the surface of the rotating shaft. A stepper motor 11 is installed on the outer surface of the inclined port 7. The output end of the stepper motor 11 is fixedly connected to the rotating shaft to ensure that the material is uninterrupted from initial filtration to pressurization, reducing production downtime caused by blockage and stagnation, ensuring the continuity of the tableting process, and improving overall production efficiency.

[0034] The second filter tank 9 is located directly below the distribution plate 10. The end of the distribution plate 10 is arc-shaped. The arc-shaped design of the end of the distribution plate 10 can prevent materials from getting stuck in the gap between the distribution plate 10 and the inner wall of the inclined port 7, ensuring that the materials slide down smoothly without residue or blockage.

[0035] In operation, the tableted material is first pushed into the first feeding port 3 of the feeding assembly 2 and falls onto the inclined plate 5 at its top. The inclination angle of the inclined plate 5 provides a guiding force for the material to slide naturally down the plate surface towards the second feeding port 4. At the same time, multiple first filter grooves 6 on the surface of the inclined plate 5 work simultaneously, filtering out powder impurities carried out during material transport and limiting the material's sliding speed through the aperture of the first filter grooves 6. Then, the pre-filtered material passes through the second feeding port 4 and enters the inclined port 7 fixedly connected to its bottom. The stepper motor 11 outside the inclined port 7 starts, driving the rotating shaft in the middle of the inclined port 7 to rotate. The four distributing plates 10 evenly installed on the rotating shaft follow the rotation. The shaft rotates synchronously, and the four distributing plates 10 are distributed at 90° intervals. Adjacent distributing plates 10 and the inner wall of the inclined port 7 form a distributing space with the same volume. After the material enters, it will be distributed and transported by the rotating distributing plates 10. During the distributing and feeding process, the bottom of the material passes through the second filter tank 9, which performs secondary purification of the material, further filtering out the fine powder impurities remaining in the material and improving the purity of the material. At the same time, by intercepting powder impurities, it prevents them from falling onto the surface of the discharge port, thereby preventing impurities from contaminating the tablets output from the discharge port later, ensuring the hygiene and safety of the finished product. In addition, during the rotation of the distributing plates 10, it can sweep away the accumulated powder impurities on the inner wall of the inclined port 7, ensuring that there is no powder residue after distributing, and further blocking the interlayer contamination path.

[0036] Example 2

[0037] Please see Figures 1-5 This utility model provides a technical solution:

[0038] A rectangular groove 12 is provided on the upper surface of the inclined opening 7. A blowing head 13 is installed inside the rectangular groove 12. An air pump is provided on the outside of the tablet pressing equipment 1. The output end of the air pump is connected to the blowing head 13 through an air pipe.

[0039] The top of the first discharge port 3 and the second discharge port 4 are connected to the top of the top frame 8.

[0040] The top frame 8 has protruding surfaces at both ends near the surface of the tableting equipment 1. The surfaces of the protruding surfaces are connected to the tableting equipment 1 by positioning bolts. The top frame 8 is directly connected to the top of the first discharge port 3 and the second discharge port 4, forming an integrated rigid frame. This integrates the two independent discharge ports into a stable unit, preventing the first discharge port 3 and the second discharge port 4 from tilting or misaligning due to vibration during equipment operation. This provides a basic positioning guarantee for the smooth transfer of materials from the first discharge port 3 to the second discharge port 4. During installation, the position of the top frame 8 can be finely adjusted by adjusting the tightness of the positioning bolts to ensure the precise alignment of the material distribution component in the inclined port 7, the second filter tank 9, and the tableting equipment 1.

[0041] Unlike Embodiment 1, when the dispensing assembly rotates and dispenses materials within the inclined port 7, the air pump starts simultaneously, delivering compressed air through the air pipe to the blowing head 13 within the rectangular groove 12. The air outlet of the blowing head 13 is aligned with the contact area between the dispensing plate 10 and the inner wall of the inclined port 7, as well as above the second filter groove 9, forming a directional airflow. The airflow can promptly blow away the fine powder generated by material friction in the gap between the dispensing plate 10 and the inner wall of the inclined port 7, preventing the powder from accumulating and agglomerating in the gap. The airflow can also blow away powder impurities intercepted by the second filter groove 9, ensuring that the second filter groove 9 remains unobstructed, while preventing impurities from being carried into the tablet bed by subsequent materials.

[0042] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tablet press with double-layer low-dose formulation, comprising a tablet pressing device (1), characterized in that, The tablet pressing device (1) is provided with a feeding assembly (2) on its side. The feeding assembly (2) includes a first feeding port (3) and a second feeding port (4). The first feeding port (3) and the second feeding port (4) are parallel and correspond to each other. An inclined plate (5) is provided at the top of the inside of the first feeding port (3). The bottom end of the inclined plate (5) is connected to the second feeding port (4). An inclined opening (7) is fixedly connected to the bottom end of the second feeding port (4). A dispensing assembly is provided inside the inclined opening (7).

2. The tablet double-layer low-dose tablet press according to claim 1, characterized in that, The inclined plate (5) has multiple first filter grooves (6) on its surface.

3. The tablet press with double-layer low-dose formulation according to claim 1, characterized in that, The bottom end of the inclined port (7) is provided with multiple second filter grooves (9).

4. A tablet press with double-layer low-dose formulation according to claim 3, characterized in that, The material distribution assembly includes a rotating shaft, which is rotatably installed in the middle of the inclined opening (7). Four material distribution plates (10) are evenly installed on the surface of the rotating shaft. A stepper motor (11) is provided on the outer surface of the inclined opening (7). The output end of the stepper motor (11) is fixedly connected to the rotating shaft.

5. A tablet press with double-layer low-dose formulation according to claim 4, characterized in that, The second filter tank (9) is located directly below the material distribution plate (10), and the end of the material distribution plate (10) is arc-shaped.

6. A tablet press with double-layer low-dose formulation according to claim 1, characterized in that, The upper surface of the inclined opening (7) is provided with a rectangular groove (12), and a blowing head (13) is installed inside the rectangular groove (12). An air pump is provided on the outside of the tablet pressing device (1), and the output end of the air pump is connected to the blowing head (13) through an air pipe.

7. A tablet press with double-layer low-dose formulation according to claim 1, characterized in that, The top of the first discharge port (3) and the second discharge port (4) are connected to a top frame (8).

8. A tablet press with double-layer low-dose formulation according to claim 7, characterized in that, The top frame (8) has protruding surfaces at both ends near the surface of the tablet pressing device (1), and the surfaces of the protruding surfaces are connected to the tablet pressing device (1) by positioning bolts.

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