Rotary pharmaceutical tablet press mold

Abstract

The utility model discloses a rotary pharmaceutical tablet press mould, which relates to the technical field of pharmaceutical mechanical equipment and comprises a middle mould body, the middle mould body is composed of a bottom layer ring and a top layer ring which are detachably spliced, an annular material groove is arranged on the upper surface of the top layer ring, and a plurality of mould columns are uniformly distributed on the inner walls of the bottom layer ring and the top layer ring along the circumferential direction. And the top end surface of the mold column is parallel to the bottom surface of the trough. The die body is divided into the bottom layer ring and the top layer ring which are detachably spliced, the independent replacement function of the die column is achieved, when the surface of the die column or a cavity is abraded, only local assemblies need to be replaced, the maintenance cost is greatly reduced, the downtime of equipment is shortened, and the production efficiency is improved. And meanwhile, the parallel layout of the annular trough and the mold column effectively guides directional filling of the powder, raw material waste and workshop pollution caused by powder scattering are avoided, and the cleanliness of the production environment and the material utilization rate are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical machinery and equipment, and in particular to a rotary pharmaceutical tablet press mold. Background Technology

[0002] Rotary pharmaceutical tablet presses use the uniform rotation of a turntable to continuously fill materials into the mold cavity, and then form tablets through precise compression by the upper and lower punches. Its core working principle lies in the multi-station collaboration of the turntable: after the material is introduced into the mold cavity by the scraper, the turntable drives the mold to sequentially complete the filling, pre-compression, main compression, and tablet ejection processes, achieving continuous and efficient production.

[0003] Traditional rotary pharmaceutical tablet presses typically employ a one-piece mold structure, where the mold body is formed from a single metal block with mold pillars evenly distributed on its surface. This design presents two major drawbacks in actual production: First, the lack of an independent sealing structure between the mold pillars and the mold body allows pharmaceutical powder to easily spill from the mold gaps onto the turntable surface during filling, resulting in material waste, workshop contamination, and significant cleaning difficulties. Second, after prolonged use, the tops of the mold pillars or the surface of the cavity are prone to wear or cracking. However, because the mold is an indivisible unit, the entire component must be replaced, leading to high maintenance costs and extended equipment downtime, severely impacting continuous production efficiency. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing tablet presses where the mold is an integral piece, which easily leads to material waste and high maintenance costs. Therefore, this invention proposes a rotary pharmaceutical tablet press mold.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution:

[0006] A rotary pharmaceutical tablet press mold includes a middle mold body, which is composed of a detachable bottom ring and a top ring. The upper surface of the top ring is provided with an annular material groove. Multiple mold pillars are evenly distributed circumferentially on the inner walls of the bottom ring and the top ring, and the top end face of the mold pillar is parallel to the bottom surface of the material groove.

[0007] Preferably, a cooling groove is formed on the upper surface of the bottom ring, and multiple connecting grooves are evenly distributed along the circumferential edge of the cooling groove, the number of which matches the mold column.

[0008] Preferably, the cooling tank opening is provided with a removable sealing cover, and a sealing ring is fitted around the edge of the sealing cover.

[0009] Preferably, the top ring edge is provided with a cleaning groove, and the inner wall of the cleaning groove is provided with a detachable baffle, the inner and outer sides of which are arc-shaped.

[0010] Preferably, an inlet pipe and an outlet pipe are fixedly provided on the lower surface of the top ring, and the upper ends of the inlet pipe and the outlet pipe are connected to the cooling tank.

[0011] Preferably, both the bottom ring and the top ring have mounting grooves of the same area at their centers.

[0012] Preferably, the mold column has a T-shaped cross-section, and the lower surface of the mold column is parallel to the lower surface of the bottom ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, by disassembling the mold body into a detachable bottom ring and a top ring, the mold pillars can be replaced independently. When the mold pillars or the surface of the cavity are worn, only the local components need to be replaced, which greatly reduces maintenance costs and equipment downtime. At the same time, the parallel layout of the annular material groove and the mold pillars effectively guides the powder to fill in the direction, avoiding the waste of raw materials and workshop pollution caused by powder spillage, and significantly improving the cleanliness of the production environment and the utilization rate of materials. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the bottom ring of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the bottom ring of this utility model.

[0020] The numbers in the diagram are: 1. Middle mold body; 11. Bottom ring; 12. Top ring; 13. Material groove; 14. Mold pillar; 2. Cooling groove; 21. Connecting groove; 3. Sealing cover; 4. Cleaning groove; 41. Baffle; 5. Liquid inlet pipe; 51. Liquid outlet pipe; 6. Mounting groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0024] Example: This example provides a rotary pharmaceutical tablet press mold, see [link to example]. Figure 1-4 Specifically, the device includes a middle mold body 1, which consists of a detachable bottom ring 11 and a top ring 12. The upper surface of the top ring 12 is provided with an annular material groove 13. Multiple mold pillars 14 are evenly distributed circumferentially on the inner walls of the bottom ring 11 and the top ring 12, and the top end face of the mold pillar 14 is parallel to the bottom surface of the material groove 13. During use, the middle mold body 1 rotates at a uniform speed, continuously filling the material into the inner cavity of the mold pillar 14, and forming tablets through precise pressing by the upper and lower punches. By opening the material groove 13 on the top ring 12, the powder that does not enter the mold pillar 14 during material filling is restricted by the material groove 13, preventing the powder from scattering to various parts of the tablet press, making it easy to clean. When the surface of the mold pillar 14 or the material groove 13 is worn, only the local components need to be replaced, which greatly reduces maintenance costs and reduces equipment downtime.

[0025] In the specific implementation process, such as Figure 2 and Figure 4 As shown, a cooling groove 2 is provided on the upper surface of the bottom ring 11. Multiple connecting grooves 21 are evenly distributed along the circumferential edge of the cooling groove 2. The number of connecting grooves 21 matches the mold column 14. The cooling groove 2 is provided on the bottom ring 11. Cooling liquid is added into the cooling groove 2. The centrifugal force generated by the rotation of the middle mold body 1 throws the cooling liquid into the connecting grooves 21. The connecting grooves 21 are arranged around the mold column 14 to cool the mold column 14 and prevent the upper and lower punches from moving along the inner cavity of the mold column 14, which would cause the high temperature to affect the material quality.

[0026] In the specific implementation process, such as Figure 2As shown, a removable sealing cover 3 is provided at the opening of the cooling tank 2. A sealing ring is fitted around the edge of the sealing cover 3. The sealing cover 3 is added to the cooling tank 2 and is installed by screws.

[0027] In the specific implementation process, such as Figure 1 and Figure 2 As shown, a cleaning groove 4 is provided on the edge of the top ring 12. A detachable baffle 41 is provided on the inner wall of the cleaning groove 4. Both the inner and outer sides of the baffle 41 are arc-shaped. The baffle 41 is installed in the cleaning groove 4 by screws. By opening the baffle 41, it is convenient for the powder scattered in the material trough 13 to be cleaned from the cleaning groove 4.

[0028] In the specific implementation process, such as Figure 3 and Figure 4 As shown, an inlet pipe 5 and an outlet pipe 51 are fixedly provided on the lower surface of the top ring 12. The upper ends of the inlet pipe 5 and the outlet pipe 51 are connected to the cooling tank 2. The coolant can be quickly transported into or out of the cooling tank 2 through the inlet pipe 5 and the outlet pipe 51, thereby improving working efficiency. One-way valves are provided on both the inlet pipe 5 and the outlet pipe 51.

[0029] In the specific implementation process, such as Figure 1 and Figure 2 As shown, both the bottom ring 11 and the top ring 12 have mounting grooves 6 of the same area at their center. The mounting grooves 6 are used to install the main shaft, which facilitates the rotation of the middle mold body 1.

[0030] In the specific implementation process, such as Figure 2 and Figure 3 As shown, the mold column 14 has a T-shaped cross-section. The lower surface of the mold column 14 is parallel to the lower surface of the bottom ring 11. The upper end of the mold column 14 is parallel to the bottom of the material groove 13 at the upper end of the top ring 12, and the lower end is parallel to the lower surface of the bottom ring 11. This makes the assembled middle mold body 1 more compact, reduces space, and facilitates the rotation of the middle mold body 1.

[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 inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A rotary pharmaceutical tablet press die comprising a die body (1), characterised in that: The middle mold body (1) is composed of a detachable bottom ring (11) and a top ring (12). The upper surface of the top ring (12) is provided with an annular material groove (13). The inner walls of the bottom ring (11) and the top ring (12) are evenly distributed with multiple mold pillars (14) along the circumference, and the top end face of the mold pillar (14) is parallel to the bottom surface of the material groove (13).

2. The rotary pharmaceutical tablet press mold according to claim 1, characterized in that: The bottom ring (11) has a cooling groove (2) on its upper surface. The edge of the cooling groove (2) has multiple connecting grooves (21) evenly distributed along the circumference. The number of connecting grooves (21) matches the number of mold pillars (14).

3. A rotary tablet press die according to claim 2, wherein: The cooling tank (2) has a removable sealing cover (3) at its opening, and a sealing ring is fitted around the edge of the sealing cover (3).

4. A rotary tablet press die according to claim 1, wherein: The top ring (12) has a cleaning groove (4) on its edge. The inner wall of the cleaning groove (4) is provided with a detachable baffle (41). Both the inner and outer sides of the baffle (41) are arc-shaped.

5. A rotary tablet press die according to claim 2, wherein: The lower surface of the top ring (12) is fixedly provided with an inlet pipe (5) and an outlet pipe (51), the upper ends of which are connected to the cooling tank (2).

6. A rotary tablet press die according to claim 1, wherein: Both the bottom ring (11) and the top ring (12) have mounting grooves (6) of the same area at their center.

7. The rotary pharmaceutical tablet press mold according to claim 1, characterized in that: The mold column (14) has a T-shaped cross-section, and the lower surface of the mold column (14) is parallel to the lower surface of the bottom ring (11).

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