Special mould for preparation tablets
By introducing a combination of heat dissipation fins and axial flow fans into the tablet mold, the problem of mold temperature rise caused by frictional heat was solved, achieving rapid heat dissipation and material performance stability, thus ensuring the tableting effect.
Patent Information
- Application Number
- CN202422906883.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing tablet molds generate heat due to friction during the tableting process, which leads to an increase in mold temperature, affecting the physical and chemical properties of the materials and even causing the products to be substandard.
A mold structure was designed, which includes a support base, a mold mounting base, a support column, a support top plate, a hydraulic cylinder, an upper mold, a lower mold, heat dissipation fins, an axial flow fan, and heat dissipation fins. The heat dissipation fins increase the heat dissipation area and are combined with the axial flow fan for air cooling, so as to quickly dissipate heat and reduce temperature changes.
It effectively reduces mold thermal deformation, maintains material properties, ensures tableting accuracy and dimensional stability, prevents material chemical changes, and improves tableting effect.
Smart Images
Figure CN223835108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to a special mold for pharmaceutical tablets. Background Technology
[0002] Tablet molds are devices used to prepare tablets, commonly used in the pharmaceutical industry. The main function of these molds is to compress drug ingredients (such as active ingredients, excipients, etc.) into tablets with a certain shape and size.
[0003] During the tablet compression process, existing tablet molds generate friction between the upper and lower molds, which produces heat. Additionally, when the compression force is high, the pressure on the mold also increases, leading to more heat generation. High temperatures can alter the physicochemical properties of certain materials, affecting the compression effect and even causing product defects. Utility Model Content
[0004] The purpose of this invention is to solve the above-mentioned problems by proposing a special mold for tablet preparations. It improves the existing tablet molds, which generate heat during the tableting process due to friction between the upper and lower molds. At the same time, when the pressing force is large, the pressure on the mold will also increase, resulting in more heat generation. High temperature can change the physicochemical properties of some materials, affecting the pressing effect and even causing the product to be unqualified.
[0005] A special mold for pharmaceutical tablets includes a support base, a mold mounting base, support columns, and a support top plate. The mold mounting base is located on the top outer wall of the support base. Two sets of support columns are symmetrically arranged on the top outer wall of the mold mounting base, and a support top plate is connected to the top outer walls of the two sets of support columns. A stamping control mechanism is located above the support top plate, and a heat dissipation control mechanism is located below the stamping control mechanism. An auxiliary heat dissipation mechanism is located on the side of the heat dissipation control mechanism. The stamping control mechanism includes a hydraulic cylinder and an upper mold. The hydraulic cylinder is located on the top outer wall of the support top plate, and the output end of the hydraulic cylinder is connected to the upper mold. The top outer wall of the mold is connected, and the upper mold is located below the supporting top plate; the heat dissipation control mechanism includes a cylindrical groove, an annular groove and a lower mold. The top outer wall of the mold mounting base is provided with a cylindrical groove, and the top outer wall of the mold mounting base located at the cylindrical groove position is provided with an annular groove. The lower mold is arranged inside the cylindrical groove; the auxiliary heat dissipation mechanism includes an axial flow fan, an air inlet pipe and an air outlet pipe. The axial flow fan is provided on the side outer wall of the mold mounting base located at the cylindrical groove position. The air outlet end of the axial flow fan faces the cylindrical groove. The air inlet pipe and the air outlet pipe are embedded in the mold mounting base on both sides of the cylindrical groove.
[0006] Preferably, the lower mold has an annular support block on the outer side wall at the top position, the annular support block and the annular groove are engaged, the lower mold has a support ring on the outer side wall, and the support ring has heat dissipation fins arranged in a circular pattern at equal intervals on the outer side wall.
[0007] Preferably, a gap is left between the heat dissipation fins and the cylindrical groove.
[0008] Preferably, the air inlet end of the air inlet pipe is connected to the axial flow fan, the air outlet end of the air inlet pipe is connected to the cylindrical groove, the air inlet end of the air outlet pipe is connected to the cylindrical groove, the air outlet end of the air outlet pipe is located outside the mold mounting base, and a one-way air outlet valve is provided outside the air outlet pipe located outside the mold mounting base.
[0009] Preferably, a filter cover is fitted to the outer side wall of the axial flow fan at the air inlet end, and a threaded mounting ring is provided on the outer side wall of the filter cover. An annular threaded groove is provided on the outer side wall of the axial flow fan at the outer casing end, and the threaded mounting ring and the annular threaded groove are threaded together.
[0010] The beneficial effects of this utility model are:
[0011] 1. This tablet-specific mold is designed to cool down by incorporating heat dissipation fins on the side of the lower mold and using an axial flow fan for air cooling. This design increases the heat dissipation area of the lower mold, thereby accelerating the heat dissipation rate. Simultaneously, the axial flow fan effectively removes heat accumulated on the outer wall of the heat dissipation fins to the outside of the device. This cooling process reduces thermal deformation caused by temperature changes, ensuring tableting accuracy and dimensional stability. Furthermore, some materials undergo chemical changes or degradation at high temperatures; cooling helps maintain the material's properties and characteristics. The overall design is ingenious and highly effective.
[0012] 2. When using this tablet-specific mold, the design of setting a filter cover at the air inlet of the axial flow fan utilizes the protective isolation effect of the filter cover to isolate dust and impurities in the air outside the axial flow fan. This ensures the cleanliness of the air entering the axial flow fan and guarantees the normal operation of the subsequent heat dissipation process. At the same time, it avoids the phenomenon of dust clogging the heat dissipation fins. Furthermore, the filter cover is designed to be detachable through a mechanism component, making cleaning and maintenance convenient. The overall structure design is simple and has good practical effect. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0014] Figure 2 This is a three-dimensional structural diagram of the stamping control mechanism of this utility model;
[0015] Figure 3 This is a three-dimensional structural diagram of the heat dissipation control mechanism of this utility model;
[0016] Figure 4 This is a three-dimensional structural diagram of the auxiliary heat dissipation mechanism of this utility model;
[0017] Figure 5 This is a three-dimensional structural diagram of the filter cover installation of this utility model.
[0018] In the diagram: 1. Support base; 2. Mold mounting base; 3. Support column; 4. Support top plate; 5. Stamping control mechanism; 51. Hydraulic cylinder; 52. Upper mold; 6. Heat dissipation control mechanism; 61. Columnar groove; 62. Annular groove; 63. Lower mold; 64. Annular support block; 65. Support ring; 66. Heat dissipation fins; 7. Auxiliary heat dissipation mechanism; 71. Axial flow fan; 72. Air inlet pipe; 73. Air outlet pipe; 74. One-way air outlet valve; 75. Filter cover; 76. Threaded mounting ring; 77. Annular threaded groove. 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 practical implementation: such as Figure 1-5 As shown, a special mold for pharmaceutical tablets includes a support base 1, a mold mounting base 2, support columns 3, and a support top plate 4. The mold mounting base 2 is provided on the top outer wall of the support base 1. Two sets of support columns 3 are symmetrically arranged on the top outer wall of the mold mounting base 2. The top outer walls of the two sets of support columns 3 are connected to the support top plate 4. A stamping control mechanism 5 is provided above the support top plate 4. A heat dissipation control mechanism 6 is provided below the stamping control mechanism 5. An auxiliary heat dissipation mechanism 7 is provided on the side of the heat dissipation control mechanism 6.
[0021] The stamping control mechanism 5 includes a hydraulic cylinder 51 and an upper mold 52. The hydraulic cylinder 51 is installed on the outer wall of the top of the supporting top plate 4. The output end of the hydraulic cylinder 51 is connected to the outer wall of the top of the upper mold 52, and the upper mold 52 is located below the supporting top plate 4. When the mold is used to stamp tablets, the tablet powder is first poured into the groove of the lower mold 63. Then the hydraulic cylinder 51 is turned on. When the hydraulic cylinder 51 is turned on, it will automatically move the upper mold 52 down. As the upper mold 52 touches the bottom of the lower mold 63, it will automatically press the powder into tablets. The subsequent demolding process does not need to be improved and can be operated by existing conventional operating techniques. It is an existing technical method, so it will not be described in detail here.
[0022] The heat dissipation control mechanism 6 includes a cylindrical groove 61, an annular groove 62, and a lower mold 63. The top outer wall of the mold mounting base 2 has a cylindrical groove 61, and the top outer wall of the mold mounting base 2 at the position of the cylindrical groove 61 has an annular groove 62. The lower mold 63 is housed inside the cylindrical groove 61. An annular support block 64 is provided on the side outer wall of the lower mold 63 at its top position. The annular support block 64 and the annular groove 62 are engaged. A support ring 65 is provided on the side outer wall of the lower mold 63, and heat dissipation fins 66 are arranged in a circular pattern at equal intervals on the side outer wall of the support ring 65. The cylindrical groove 61 and the annular groove 62 serve to position and install the lower mold 63 and the annular support block 64. When the lower mold 63 needs to be installed inside the device, it is only necessary to adjust the lower mold 63 to a suitable position and place it inside the cylindrical groove 61. Then, the annular support block 64 is hammered into the bottom of the annular groove 62 to complete the installation. Here, the support ring 65 is made of thermally conductive material. This design allows the heat generated by the stamping of the lower mold 63 to be transferred to the heat dissipation fins 66 through the support ring 65, thereby increasing the heat dissipation area of the lower mold 63 and enhancing its heat dissipation efficiency.
[0023] A gap is left between the heat dissipation fins 66 and the cylindrical grooves 61; this design allows the following air cooling to proceed smoothly.
[0024] The auxiliary heat dissipation mechanism 7 includes an axial flow fan 71, an air inlet pipe 72, and an air outlet pipe 73. An axial flow fan 71 is installed on the outer side wall of the mold mounting base 2 at the location of the cylindrical groove 61, with the air outlet end of the axial flow fan 71 facing the cylindrical groove 61. The air inlet pipe 72 and the air outlet pipe 73 are embedded and connected to both sides of the mold mounting base 2 at the cylindrical groove 61. The air inlet end of the air inlet pipe 72 is connected to the axial flow fan 71, and the air outlet end of the air inlet pipe 72 is connected to the cylindrical groove 61. The air inlet end of the air outlet pipe 73... The air outlet of the air outlet pipe 73 is located outside the mold mounting base 2 and is connected to the cylindrical groove 61. A one-way air outlet valve 74 is provided outside the air outlet pipe 73 located outside the mold mounting base 2. A filter screen cover 75 is fitted to the outer side wall of the axial flow fan 71 located at the air inlet end. A threaded mounting ring 76 is provided on the outer side wall of the filter screen cover 75. An annular threaded groove 77 is opened on the outer side wall of the axial flow fan 71 located at the outer shell. The threaded mounting ring 76 and the annular threaded groove 77 are threaded together.
[0025] When it is necessary to accelerate the heat dissipation efficiency of the lower mold 63, simply turn on the axial flow fan 71. When the axial flow fan 71 is turned on, it will generate airflow and blow the airflow into the interior of the cylindrical groove 61 through the air inlet pipe 72. The airflow interacts with the heat accumulated on the outside of the heat dissipation fins 66 and is then discharged to the outside of the device through the air outlet pipe 73. The one-way air outlet valve 74 ensures that the air inside the air outlet pipe 73 can only be discharged to the outside of the device. This method of expelling airflow through the interaction of hot and cold air accelerates the cooling speed of the heat dissipation fins 66 and thus accelerates the cooling speed of the lower mold 63. The filter cover 75 ensures that the axial flow fan 71 will not bring external impurities into the device. When the side of the filter cover 75 is clogged with dust and needs to be cleaned, simply rotate the filter cover 75 until the threaded mounting ring 76 on its side is completely disengaged from the annular threaded groove 77 to complete the disassembly. After cleaning, simply adjust the filter cover 75 to a suitable position and screw the threaded mounting ring 76 on its side to the bottom of the annular threaded groove 77 to complete the installation.
[0026] When using this utility model, if the mold is needed to press tablets, the tablet powder is first poured into the groove of the lower mold 63. Then, the hydraulic cylinder 51 is turned on. When the hydraulic cylinder 51 is turned on, it will automatically move the upper mold 52 down. When the upper mold 52 touches the bottom of the lower mold 63, the powder will be automatically pressed into tablets. The subsequent demolding process has not been improved and can be operated by existing conventional operating techniques. It is an existing technical method, so it will not be described in detail here.
[0027] The cylindrical groove 61 and the annular groove 62 here serve to position and install the lower mold 63 and the annular support block 64. When the lower mold 63 needs to be installed inside the device, it is only necessary to adjust the lower mold 63 to a suitable position and place it inside the cylindrical groove 61. Then, the annular support block 64 is hammered into the bottom of the annular groove 62 to complete the installation. The support ring 65 here is made of thermally conductive material. This design allows the heat generated by the stamping of the lower mold 63 to be transferred to the heat dissipation fins 66 through the support ring 65, thereby increasing the heat dissipation area of the lower mold 63 and enhancing its heat dissipation efficiency.
[0028] When it is necessary to accelerate the heat dissipation efficiency of the lower mold 63, simply turn on the axial flow fan 71. When the axial flow fan 71 is turned on, it will generate airflow and blow the airflow into the interior of the cylindrical groove 61 through the air inlet pipe 72. The airflow interacts with the heat accumulated on the outside of the heat dissipation fins 66 and is then discharged to the outside of the device through the air outlet pipe 73. The one-way air outlet valve 74 ensures that the air inside the air outlet pipe 73 can only be discharged to the outside of the device. This method of expelling airflow through the interaction of hot and cold air accelerates the cooling speed of the heat dissipation fins 66 and thus accelerates the cooling speed of the lower mold 63. The filter cover 75 ensures that the axial flow fan 71 will not bring external impurities into the device. When the side of the filter cover 75 is clogged with dust and needs to be cleaned, simply rotate the filter cover 75 until the threaded mounting ring 76 on its side is completely disengaged from the annular threaded groove 77 to complete the disassembly. After cleaning, simply adjust the filter cover 75 to a suitable position and screw the threaded mounting ring 76 on its side to the bottom of the annular threaded groove 77 to complete the installation.
[0029] It should be noted that the hydraulic cylinder 51 mentioned above can be driven in accordance with existing conventional operating techniques, which are already in use and will not be described in detail here.
[0030] 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 special mold for pharmaceutical tablets, characterized in that, Includes a support base (1), a mold mounting base (2), support columns (3) and a support top plate (4): the top outer wall of the support base (1) is provided with a mold mounting base (2), the top outer wall of the mold mounting base (2) is symmetrically provided with two sets of support columns (3), and the top outer walls of the two sets of support columns (3) are connected to provide a support top plate (4), a stamping control mechanism (5) is provided above the support top plate (4), a heat dissipation control mechanism (6) is provided below the stamping control mechanism (5), and an auxiliary heat dissipation mechanism (7) is provided on the side of the heat dissipation control mechanism (6); The stamping control mechanism (5) includes a hydraulic cylinder (51) and an upper mold (52). The upper outer wall of the supporting top plate (4) is provided with a hydraulic cylinder (51). The output end of the hydraulic cylinder (51) is connected to the upper outer wall of the upper mold (52), and the upper mold (52) is located below the supporting top plate (4). The heat dissipation control mechanism (6) includes a cylindrical groove (61), an annular groove (62) and a lower mold (63). The top outer wall of the mold mounting base (2) is provided with a cylindrical groove (61). The top outer wall of the mold mounting base (2) located at the cylindrical groove (61) is provided with an annular groove (62). The lower mold (63) is provided inside the cylindrical groove (61). The auxiliary heat dissipation mechanism (7) includes an axial flow fan (71), an air inlet pipe (72), and an air outlet pipe (73). The mold mounting base (2) is provided with an axial flow fan (71) on the outer side wall of the cylindrical groove (61). The air outlet of the axial flow fan (71) faces the cylindrical groove (61). The mold mounting base (2) is provided with an air inlet pipe (72) and an air outlet pipe (73) embedded on both sides of the cylindrical groove (61).
2. The special mold for pharmaceutical tablets according to claim 1, characterized in that: The lower mold (63) has an annular support block (64) on the outer side wall at the top position. The annular support block (64) and the annular groove (62) are engaged. The lower mold (63) has a support ring (65) on the outer side wall. The support ring (65) has heat dissipation fins (66) arranged in a circular manner at equal intervals on the outer side wall.
3. The special mold for pharmaceutical tablets according to claim 2, characterized in that: There is a gap between the heat dissipation fins (66) and the cylindrical groove (61).
4. The special mold for pharmaceutical tablets according to claim 3, characterized in that: The air inlet end of the air inlet pipe (72) is connected to the axial flow fan (71), the air outlet end of the air inlet pipe (72) is connected to the cylindrical groove (61), the air inlet end of the air outlet pipe (73) is connected to the cylindrical groove (61), the air outlet end of the air outlet pipe (73) is located outside the mold mounting base (2), and a one-way air outlet valve (74) is provided outside the air outlet pipe (73) located outside the mold mounting base (2).
5. The special mold for pharmaceutical tablets according to claim 4, characterized in that: A filter cover (75) is fitted to the outer side wall of the axial flow fan (71) at the air inlet end. A threaded mounting ring (76) is provided on the outer side wall of the filter cover (75). An annular threaded groove (77) is provided on the outer side wall of the axial flow fan (71) at the outer shell end. The threaded mounting ring (76) and the annular threaded groove (77) are threaded together.