Forming mold for tablet medicine production

Abstract

The utility model relates to a forming die for tablet medicine production, which comprises an upper die, a lower die and an ejection mechanism, and is technically characterized in that a lower pressing column of the upper die is a hollow column, a hollow pressing block is arranged at the lower end of the hollow column, a lifting rod is arranged in the hollow column and is connected with a limiting block, and a plugging boss is arranged on the lower surface of the limiting block; a blocking hole matched with the blocking boss is formed in the lower surface of the hollow pressing block, longitudinal sliding grooves are symmetrically formed in the side walls of the hollow columns, a telescopic cylinder for material taking is arranged on the lifting plate, a cylinder rod of the telescopic cylinder for material taking is connected with a linkage plate, and concentric receding holes in one-to-one correspondence with the hollow columns are formed in the linkage plate; a connecting rib sliding along the longitudinal sliding groove is arranged on the side wall of the lifting rod, the tail end of the connecting rib is fixedly connected with the inner wall of the concentric receding hole, a vacuum generator is fixed to the linkage plate, and the hollow pressing block is provided with a vacuumizing hole and connected with the vacuum generator through a negative pressure pipeline. According to the die, the production efficiency is improved, materials are convenient to take, and the product quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of tablet drug production equipment, and particularly relates to a forming mold for tablet drug production. Background Art

[0002] In the production process of tablet drugs, it is necessary to extrude and form the medicinal powder through a forming mold.

[0003] For example, CN 221137043 U discloses a forming mold for tablet drug production with multiple mold cavities, which includes a lower mold. An upper mold is installed at the top of the lower mold. An activity groove is formed inside the lower mold, and uniformly distributed forming grooves are formed at the top of the lower mold. An activity plate is horizontally and movably installed inside the activity groove. The forming mold is intended to facilitate the docking between the upper mold and the lower mold by inserting a positioning rod into a positioning hole to prevent the position from shifting during docking. The upper mold can be connected and fixed to external equipment through a fixed seat, enabling the external equipment to drive the upper mold to move up and down. By driving the upper mold to move downward, an extrusion block can be driven to penetrate into the forming groove, and the medicinal powder inside the forming groove can be extruded and formed. By extruding and forming the medicinal powder in multiple forming grooves, the production efficiency of tablet drugs is improved. However, there are still the following problems: The tablet drugs pressed in multiple forming grooves are not conducive to material taking due to the increase in quantity, and it is not convenient to take materials. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a forming mold for tablet drug production with reasonable structure and reliable use to solve the above problems, which is convenient for material taking while improving production efficiency and ensuring product quality.

[0005] The technical solution of the utility model is as follows:

[0006] A molding die for tablet drug production, comprising an upper die, a lower die and a blanking mechanism. The lower die includes a seat body and a plurality of molding grooves provided on the seat body. The upper die includes a support seat arranged above the seat body, a lifting plate arranged on the support seat, and pressing columns arranged on the upper surface of the lifting plate and corresponding to the molding grooves one by one. The technical key points are as follows: The pressing column is a hollow column, and a hollow pressing block communicated with the lower end of the hollow column is provided. A lifting rod is arranged in the hollow column, and the lower end of the lifting rod is connected with a limiting block located in the hollow pressing block. A sealing boss is arranged in the middle of the lower surface of the limiting block, and a sealing hole matching the sealing boss is arranged on the lower surface of the hollow pressing block. A pair of longitudinal sliding grooves are symmetrically arranged on the side wall of the hollow column. A plurality of telescopic cylinders for material taking are fixed on the lifting plate. The cylinder rods of the telescopic cylinders for material taking pass through the lifting plate and are jointly connected to a linkage plate. Concentric avoidance holes corresponding to the hollow columns one by one are arranged on the linkage plate. Connecting ribs sliding along the longitudinal sliding grooves are arranged on the side wall of the lifting rod, and the ends of the connecting ribs are fixedly connected with the inner walls of the corresponding concentric avoidance holes. A vacuum generator is fixed on the linkage plate. A vacuum extraction hole is arranged on the hollow pressing block, and the vacuum extraction hole is connected with the vacuum generator by a negative pressure pipeline.

[0007] For the above-mentioned molding die for tablet drug production, the support seat includes a horizontal support plate and guiding columns connected between the four corners of the horizontal support plate and the seat body. Longitudinal guiding grooves are arranged on the guiding columns. Guiding sliders cooperating with the longitudinal guiding grooves are respectively arranged at the four corners of the lifting plate. The guiding sliders correspond to the guiding columns one by one. A lifting cylinder is fixedly arranged at the center of the upper surface of the horizontal support plate. The cylinder rod of the lifting cylinder passes through the horizontal support plate and is fixedly connected with the center of the lifting plate.

[0008] For the above-mentioned molding die for tablet drug production, the blanking mechanism includes a top block located in the molding groove, a top rod connected to the lower surface of the top block, and a push-pull plate connected to the lower ends of the top rods together. Through holes corresponding to the top rods are arranged on the seat body.

[0009] For the above-mentioned molding die for tablet drug production, the inner diameter of the hollow column is equal to the outer diameter of the lifting rod, the outer diameter of the limiting block is larger than the inner diameter of the hollow column, and the inner diameter of the concentric avoidance hole is larger than the outer diameter of the hollow column.

[0010] For the above-mentioned molding die for tablet drug production, avoidance through holes corresponding to the telescopic cylinders for material taking are arranged on the horizontal support plate of the support seat.

[0011] For the above-mentioned molding die for tablet drug production, the lower surface of the hollow pressing block is flush with the top surface of the sealing boss.

[0012] The beneficial effects of the present utility model are:

[0013] After being pressed into tablet drugs, the tablet drugs are pushed out of the forming groove by the blanking mechanism. At this time, the lifting plate drives each hollow pressing block to move downward and contact the upper surface of the tablet drugs. The telescopic cylinder for material taking drives the linkage plate, connecting ribs and each lifting rod to rise, so that the plugging boss on the lower surface of the hollow pressing block disengages from the plugging hole. Then, a negative pressure is generated in each hollow pressing block by the vacuum generator and the negative pressure pipeline, so as to generate an attraction force to suck the corresponding tablet drugs. The blanking mechanism moves downward, the receiving tray extends below each hollow pressing block, the hollow pressing block is depressurized, and each tablet drug falls on the upper surface of the receiving tray, realizing safe and reliable material taking, which is convenient and fast, further improving the production efficiency, and also avoiding drug damage and ensuring product quality. Brief Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is Figure 1 the left view of

[0016] Figure 3 is Figure 1 the schematic view in the A-A direction in

[0017] In the figure: 1. Lifting cylinder, 2. Telescopic cylinder for material taking, 3. Guide post, 4. Guide slider, 5. Horizontal support plate, 6. Lifting plate, 7. Pressing column, 8. Linkage plate, 9. Lifting rod, 10. Hollow pressing block, 11. Limit block, 12. Plugging boss, 13. Negative pressure pipeline, 14. Vacuum generator, 15. Longitudinal sliding groove, 16. Connecting rib, 17. Base body, 18. Forming groove, 19. Top block, 20. Top rod, 21. Push-pull plate, 22. Concentric avoidance hole. Detailed Embodiment

[0018] The present utility model will be described in detail according to the accompanying drawings of the specification.

[0019] As Figures 1 to 3 shown, the forming die for producing tablet drugs includes an upper die, a lower die and a blanking mechanism.

[0020] Among them, the lower die includes a base body 17 and a plurality of forming grooves 18 provided on the base body 17. The upper die includes a support provided above the base body 17, a lifting plate 6 provided on the support, and pressing columns 7 provided on the upper surface of the lifting plate 6 and corresponding to the forming grooves 18 one by one. The blanking mechanism includes a top block 19 located in the forming groove 18, a top rod 20 connected to the lower surface of the top block 19, and a push-pull plate 21 connected to the lower ends of the respective top rods 20 together, and through holes corresponding to the top rods 20 are provided on the base body 17.

[0021] The pressing column 7 is a hollow column, and a hollow pressing block 10 communicated with it is provided at the lower end of the hollow column. An elevating rod 9 is arranged in the hollow column, and the lower end of the elevating rod 9 is connected to a limiting block 11 located in the hollow pressing block 10. A sealing boss 12 is arranged in the middle of the lower surface of the limiting block 11, and a sealing hole matching the sealing boss 12 is arranged on the lower surface of the hollow pressing block 10. A pair of longitudinal sliding grooves 15 are symmetrically arranged on the side wall of the hollow column. A plurality of telescopic cylinders 2 for material taking are fixed on the lifting plate 6, the cylinder rods of the respective telescopic cylinders 2 for material taking pass through the lifting plate 6 and are jointly connected to a linkage plate 8. Concentric avoidance holes 22 corresponding to the respective hollow columns are arranged on the linkage plate 8. Connecting ribs 16 sliding along the longitudinal sliding grooves 15 are arranged on the side wall of the elevating rod 9, and the ends of the connecting ribs 16 are fixedly connected to the inner walls of the corresponding concentric avoidance holes 22. A vacuum generator 14 is fixed on the linkage plate 8, a vacuum extraction hole is arranged on the hollow pressing block 10, and the vacuum extraction hole is connected to the vacuum generator 14 by a negative pressure pipeline 13. The inner diameter of the hollow column is equal to the outer diameter of the elevating rod 9, the outer diameter of the limiting block 11 is larger than the inner diameter of the hollow column, and the inner diameter of the concentric avoidance hole 22 is larger than the outer diameter of the hollow column. The lower surface of the hollow pressing block 10 is flush with the top surface of the sealing boss 12.

[0022] The support includes a horizontal support plate 5 and guide columns 3 connected between the four corners of the horizontal support plate 5 and the seat body 17. Longitudinal guide grooves are arranged on the guide columns 3, and guide sliding blocks 4 cooperating with the longitudinal guide grooves are respectively arranged at the four corners of the lifting plate 6, and the guide sliding blocks 4 correspond to the guide columns 3 one by one. A lifting cylinder 1 is fixedly arranged at the center of the upper surface of the horizontal support plate 5, and the cylinder rod of the lifting cylinder 1 passes through the horizontal support plate 5 and is fixedly connected to the center of the lifting plate 6. Avoidance through holes corresponding to the telescopic cylinders 2 for material taking are arranged on the horizontal support plate 5 of the support.

[0023] Working principle:

[0024] 1. During use, materials are evenly distributed into each forming groove 18, and the lifting cylinder 1 is started to drive the lifting plate 6 to descend, so that each hollow pressing block 10 falls into the corresponding forming groove 18 and gradually applies pressure to realize the tablet pressing operation.

[0025] 2. After the tablet pressing operation is completed, the lifting cylinder 1 drives the lifting plate 6 to rise and separate from the forming groove 18 to a set height. The top material mechanism ascends under the action of the driving mechanism, and each top block 19 pushes the tablet drug upward and separates from the forming groove 18. At this time, the lifting plate 6 drives each hollow pressing block 10 to move downward and contact the upper surface of the tablet drug. The telescopic cylinders 2 for material taking are used to drive the linkage plate 8, the connecting ribs 16 and each elevating rod 9 to rise, so that the sealing boss 12 on the lower surface of the hollow pressing block 10 disengages from the sealing hole. Then, the vacuum generator 14 and the negative pressure pipeline 13 are used to generate negative pressure in each hollow pressing block 10, so as to generate an attraction force to suck the corresponding tablet drug.

[0026] 3. The ejector mechanism moves downward and resets, the material receiving tray extends below each hollow pressing block 10, the hollow pressing block 10 is depressurized, and each tablet drug falls on the upper surface of the material receiving tray to achieve material taking.

[0027] The above has described the embodiments of the present invention in detail, but the above content is only the preferred embodiments of the present invention and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made within the scope of the present invention shall still fall within the scope covered by this patent.

Claims

1. A molding die for tablet drug production, comprising an upper die, a lower die and a blanking mechanism. The lower die includes a seat body and a plurality of molding grooves provided on the seat body. The upper die includes a support seat provided above the seat body, a lifting plate provided on the support seat, and a pressing column provided on the upper surface of the lifting plate and corresponding to the molding grooves one by one. It is characterized in that: The pressing column is a hollow column, and a hollow pressing block communicated with the hollow column is arranged at the lower end of the hollow column. A lifting rod is arranged in the hollow column, and the lower end of the lifting rod is connected with a limiting block located in the hollow pressing block. A sealing boss is arranged in the middle of the lower surface of the limiting block, and a sealing hole matching the sealing boss is arranged on the lower surface of the hollow pressing block. A pair of longitudinal sliding grooves are symmetrically arranged on the side wall of the hollow column. A plurality of telescopic cylinders for material taking are fixed on the lifting plate. The cylinder rods of the telescopic cylinders for material taking penetrate through the lifting plate and are jointly connected to a linkage plate. Concentric avoidance holes corresponding to each hollow column are arranged on the linkage plate. Connecting ribs sliding along the longitudinal sliding grooves are arranged on the side wall of the lifting rod, and the ends of the connecting ribs are fixedly connected with the inner walls of the corresponding concentric avoidance holes. A vacuum generator is fixed on the linkage plate. A vacuum extraction hole is arranged on the hollow pressing block, and the vacuum extraction hole is connected with the vacuum generator by a negative pressure pipeline.

2. The molding die for tablet drug production according to claim 1, wherein: The support includes a horizontal support plate and guide columns connected between the four corners of the horizontal support plate and the seat body. Longitudinal guide grooves are arranged on the guide columns. Guide sliders matched with the longitudinal guide grooves are respectively arranged at the four corners of the lifting plate. The guide sliders correspond to the guide columns one by one. A lifting cylinder is fixedly arranged at the center of the upper surface of the horizontal support plate. The cylinder rod of the lifting cylinder penetrates through the horizontal support plate and is fixedly connected with the center of the lifting plate.

3. The molding die for tablet drug production according to claim 1, wherein: The ejecting mechanism includes an ejecting block located in the forming groove, an ejecting rod connected to the lower surface of the ejecting block, and a push-pull plate connected to the lower ends of the ejecting rods together. Through holes corresponding to the ejecting rods are arranged on the seat body.

4. The molding die for tablet drug production according to claim 1, wherein: The inner diameter of the hollow column is equal to the outer diameter of the lifting rod, the outer diameter of the limiting block is larger than the inner diameter of the hollow column, and the inner diameter of the concentric avoidance hole is larger than the outer diameter of the hollow column.

5. The molding die for tablet drug production according to claim 1, wherein: Avoidance through holes corresponding to the telescopic cylinders for material taking are arranged on the horizontal support plate of the support.

6. The molding die for tablet drug production according to claim 1, wherein: The lower surface of the hollow pressing block is flush with the top surface of the sealing boss.

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