Rotary tablet pressing and feeding mechanism and tablet press

Abstract

This utility model discloses a rotary tablet feeding mechanism and tablet press, relating to the field of tablet press technology. It includes a mounting frame, a screw conveyor body, and a powder discharge assembly. The screw conveyor body is inclinedly mounted on the mounting frame to lift and transport the powder to the powder discharge assembly. The screw conveyor body has a first inlet and a first outlet. The first inlet is located at the top of the lower end of the screw conveyor body, and the first outlet is located at the bottom of the higher end. The powder discharge assembly is located below the higher end of the screw conveyor body. One end of the powder discharge assembly is detachably connected to the first outlet, and the other end is configured to cooperate with the tablet press to control the output of the powder and transport it to the tablet press. This solves the problem of low tablet production efficiency and poor quality stability caused by the reliance on manual feeding in current tablet presses.

Description

Technical Field

[0001] This utility model relates to the field of tablet press technology, specifically to a rotary tablet feeding mechanism and a tablet press. Background Technology

[0002] In the pharmaceutical tablet manufacturing industry, the tablet compressor is a core piece of equipment, and its operating efficiency and product quality directly determine production benefits. However, current tablet compressors mainly rely on manual operation in the feeding process, making manual feeding a key bottleneck restricting production upgrades.

[0003] In terms of production efficiency, operators need to continuously add granular or powdered materials manually to the tablet press's feed inlet. This manual operation method is slow and cannot match the mechanical operating efficiency of the tablet press, resulting in low tablet production efficiency. Regarding quality control, the frequent exposure of materials during manual addition greatly increases the risk of cross-contamination, leading to poor tablet quality stability.

[0004] Therefore, there is an urgent need for a tablet press that can automatically feed tablets to solve the problems of low tablet production efficiency and poor quality stability caused by the current tablet presses' reliance on manual feeding. Utility Model Content

[0005] Based on this, and in response to the above problems, this utility model proposes a rotary tablet feeding mechanism and tablet press, which solves the problems of low tablet production efficiency and poor quality stability caused by the current tablet press relying on manual feeding.

[0006] The technical solution of this utility model is:

[0007] A rotary tablet compression and feeding mechanism includes:

[0008] Mounting frame, used to mount the screw conveyor body;

[0009] The screw conveyor body is inclinedly mounted on the mounting frame to lift the powder and convey it to the powder discharge assembly. The screw conveyor body is provided with a first inlet and a first outlet. The first inlet is located at the top of the lower end of the screw conveyor body, and the first outlet is located at the bottom of the higher end of the screw conveyor body.

[0010] The powder discharge assembly is located below the higher end of the screw conveyor body. One end of the powder discharge assembly is detachably connected to the first discharge port, and the other end is set to cooperate with the tablet press. It is used to control the output of the powder and transport the powder to the tablet press.

[0011] Preferably, the powder discharging assembly includes a dispersing structure and a discharging control structure. One end of the dispersing structure is detachably connected to the first discharge port on the main body of the screw conveyor, and the discharging control structure is located at the other end of the dispersing structure. One end of the discharging control structure is detachably connected to the dispersing structure, and the other end is configured to cooperate with the tablet press.

[0012] Preferably, the dispersing structure includes a connecting pipe, a dispersing box, a driving component, and a pair of dispersing components. One end of the connecting pipe is detachably connected to the first discharge port by bolts. The top of the dispersing box is provided with a second inlet communicating with the internal space of the dispersing box. The other end of the connecting pipe is detachably connected to the second inlet by bolts. The bottom of the dispersing box is provided with a second discharge port communicating with the interior of the dispersing box. One end of the discharge control structure is detachably connected to the second discharge port. The pair of dispersing components are fitted together in the dispersing box and are rotatably connected to the dispersing box. The driving component is provided on the dispersing box and is used to drive the pair of dispersing components.

[0013] Preferably, the disassembly component includes a connecting rotating rod and several disassembly rods. The two ends of the connecting rotating rod pass through the disassembly box and are rotatably connected to the disassembly box. The several disassembly rods are respectively arranged on the connecting rotating rod, and one end is fixedly connected to the connecting rotating rod.

[0014] Preferably, the driving component includes a first drive motor, a first reducer, a main gear, and a secondary gear. The first drive motor is fixedly mounted on one side of the first reducer, and the output shaft of the first drive motor is fixedly connected to the input shaft of the first reducer. The first reducer is fixedly mounted on one side of the disassembly box, and the output shaft of the first reducer is fixedly connected to one end of a connecting rod in one of the disassembly components. The main gear is fixedly mounted at the other end of the connecting rod, and the secondary gear is fixedly mounted at the end of one end of a connecting rod in another disassembly component and meshes with the main gear.

[0015] Preferably, the discharge control structure includes a first control valve, a receiving funnel, a second control valve, and a discharge guide pipe. One end of the first control valve is detachably connected to the second discharge port, the other end of the first control valve is detachably connected to one end of the receiving funnel, the other end of the receiving funnel is detachably connected to one end of the second control valve, the other end of the second control valve is detachably connected to one end of the discharge guide pipe, and the other end of the discharge guide pipe is configured to cooperate with the tablet press.

[0016] Preferably, the screw conveyor body includes a screw conveyor housing, a screw conveyor rotor, screw conveyor blades, and a drive unit. The screw conveyor housing is inclinedly mounted on the mounting frame and fixedly connected to the mounting frame. The first feed inlet is located at the top of the lower end of the screw conveyor housing, and the first discharge outlet is located at the bottom of the higher end of the screw conveyor housing. The screw conveyor rotor is located inside the screw conveyor housing, with both ends penetrating through the screw conveyor housing and rotatably connected to it. The screw conveyor blades are sleeved on the screw conveyor rotor and fixedly connected to it. The drive unit is located at the lower end of the screw conveyor housing and connected to the screw conveyor rotor for driving the screw conveyor rotor.

[0017] Preferably, the drive unit includes a second drive motor and a second reducer. The second reducer is located at the lower end of the screw conveyor housing and is detachably connected to the screw conveyor housing by bolts. The second drive motor is fixedly located on one side of the second reducer. The output shaft of the second drive motor is fixedly connected to the input shaft of the second reducer, and the output shaft of the second reducer is fixedly connected to one end of the screw conveyor rotor.

[0018] Preferably, a storage bin is provided on the lower side of the screw conveyor housing, and the bottom of the storage bin is detachably connected to the first feed inlet by bolts.

[0019] A rotary tablet press includes the rotary tablet feeding mechanism described above, and also includes a rotary tablet press body. A discharge guide tube is disposed above the rotary tablet press body, and one end of the discharge guide tube is configured to cooperate with the tablet forming hole on the rotary tablet press body.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This invention features an inclined screw conveyor body fixed to a mounting frame. The screw conveyor body transports pharmaceutical powder from a first inlet at the lower top of the conveyor body to a first outlet at the higher bottom. The powder is then discharged to the tablet press via a powder discharge assembly located below the higher end of the conveyor body, achieving automatic feeding. This invention improves production efficiency by matching the continuous mechanical conveying speed with the tablet press's operating speed. Simultaneously, the closed conveying path reduces material exposure and the risk of cross-contamination, solving the problems of low tablet production efficiency and poor quality stability caused by current tablet presses relying on manual feeding. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a partial structural schematic diagram of a rotary tablet press as described in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of a rotary tablet compressing and feeding mechanism described in an embodiment of this utility model;

[0025] Figure 3 This is a partial structural schematic diagram of a rotary tablet compressing and feeding mechanism described in an embodiment of this utility model;

[0026] Figure 4 This is as described in the embodiments of this utility model. Figure 3 A magnified schematic diagram of the partial structure at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the structure of the powder discharging component described in the embodiments of this utility model;

[0028] Figure 6 This is a partial exploded structural diagram of the powder discharging component described in this embodiment of the present invention;

[0029] Explanation of reference numerals in the attached figures:

[0030] 10-Mounting frame, 11-Screw conveyor body, 12-Powder discharge assembly, 13-First feed inlet, 14-First discharge outlet, 15-Dispersion structure, 16-Discharge control structure, 17-Connecting pipe, 18-Dispersion box, 19-Drive component, 20-Dispersion component, 21-Second feed inlet, 22-Second discharge outlet, 23-Connecting rotating rod, 24-Dispersion rod, 25-First drive motor, 26-First reducer, 27-Main gear, 28-Secondary gear, 29-First control valve, 30-Receiving funnel, 31-Second control valve, 32-Discharge guide pipe, 33-Screw conveyor housing, 34-Screw conveyor rotating rod, 35-Screw conveyor blades, 36-Drive unit, 37-Second drive motor, 38-Second reducer, 39-Storage box, 40-Rotary tablet press body. Detailed Implementation

[0031] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0032] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0037] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0038] Example:

[0039] like Figures 1 to 6 As shown, this embodiment discloses a rotary tablet compression and feeding mechanism, comprising:

[0040] Mounting frame 10 is used to mount the screw conveyor body 11;

[0041] The screw conveyor body 11 is inclinedly mounted on the mounting frame 10 for lifting the powder and conveying it to the powder discharge assembly 12. The screw conveyor body 11 is provided with a first inlet 13 and a first outlet 14. The first inlet 13 is located at the top of the lower end of the screw conveyor body 11, and the first outlet 14 is located at the bottom of the higher end of the screw conveyor body 11.

[0042] The powder discharge assembly 12 is located below the higher end of the screw conveyor body 11. One end of the powder discharge assembly 12 is detachably connected to the first discharge port 14, and the other end is configured to cooperate with the tablet press. It is used to control the output of the powder and transport the powder to the tablet press.

[0043] This invention uses a mounting frame 10 to fix an inclined screw conveyor body 11. The screw conveyor body 11 transports the powdered medicine from the first inlet 13 at the lower top of the screw conveyor body 11 to the first outlet 14 at the higher bottom of the screw conveyor body 11, and then outputs it to the tablet press via the powder discharge assembly 12 at the higher bottom of the screw conveyor body 11, thus achieving automatic feeding. This invention improves production efficiency by matching the continuous mechanical conveying speed with the tablet press's operating speed. Simultaneously, the closed conveying path reduces material exposure and lowers the risk of cross-contamination, solving the problems of low tablet production efficiency and poor quality stability caused by the current reliance on manual feeding in tablet presses.

[0044] To address the problem of powder clumping causing uneven discharge, this embodiment improves upon the previous embodiment. The difference lies in that the powder discharge assembly 12 includes a dispersing structure 15 and a discharge control structure 16. One end of the dispersing structure 15 is detachably connected to the first discharge port 14 on the screw conveyor body 11. The discharge control structure 16 is located at the other end of the dispersing structure 15. One end of the discharge control structure 16 is detachably connected to the dispersing structure 15, and the other end is configured to cooperate with the tablet press.

[0045] The powder discharging assembly 12 consists of a dispersing structure 15 and a discharging control structure 16, which are connected in sequence to form a complete material output path. The dispersing structure 15 is used to receive the conveyed powder and disperse it, while the discharging control structure 16 is used to control the output of the powder.

[0046] By combining dispersion and control, the design solves the problem of potential powder clumping and enables control over powder output, making the feeding process more compatible with the tablet press's feeding requirements. The detachable connection method facilitates individual disassembly, cleaning, maintenance, or replacement of components, enhancing equipment flexibility and hygiene management convenience.

[0047] The dispersing structure 15 includes a connecting pipe 17, a dispersing box 18, a driving component 19, and a pair of dispersing components 20. One end of the connecting pipe 17 is detachably connected to the first discharge port 14 by bolts. The top of the dispersing box 18 is provided with a second inlet 21 that communicates with the internal space of the dispersing box 18. The other end of the connecting pipe 17 is detachably connected to the second inlet 21 by bolts. The bottom of the dispersing box 18 is provided with a second discharge port 22 that communicates with the interior of the dispersing box 18. One end of the discharge control structure 16 is detachably connected to the second discharge port 22. The pair of dispersing components 20 are fitted inside the dispersing box 18 and are rotatably connected to the dispersing box 18. The driving component 19 is provided on the dispersing box 18 and is used to drive the pair of dispersing components 20.

[0048] The disassembly component 20 includes a connecting rotating rod 23 and several disassembly rods 24. The two ends of the connecting rotating rod 23 pass through the disassembly box 18 and are rotatably connected to the disassembly box 18. Several disassembly rods 24 are respectively arranged on the connecting rotating rod 23, and one end is fixedly connected to the connecting rotating rod 23.

[0049] The driving component 19 includes a first driving motor 25, a first reducer 26, a main gear 27, and a secondary gear 28. The first driving motor 25 is fixedly disposed on one side of the first reducer 26. The output shaft of the first driving motor 25 is fixedly connected to the input shaft of the first reducer 26. The first reducer 26 is fixedly disposed on one side of the disassembly box 18. The output shaft of the first reducer 26 is fixedly connected to one end of the connecting rod 23 in one of the disassembly components 20. The main gear 27 is fixedly disposed at the other end of the connecting rod 23. The secondary gear 28 is fixedly disposed at the end of one end of the connecting rod 23 in another disassembly component 20 and meshes with the main gear 27.

[0050] The dispersing structure 15 is connected to the first discharge port 14 of the screw conveyor body 11 via a connecting pipe 17. The powdered medicine enters the second inlet 21 of the dispersing box 18 through the connecting pipe 17. Inside the dispersing box 18, a pair of dispersing components 20 rotate relative to each other under the drive of the drive component 19. The dispersing rod 24 disperses the falling powdered medicine, which then enters the discharge control structure 16 from the second discharge port 22 at the bottom of the dispersing box 18. The drive component 19, through the first drive motor 25 and the first reducer 26, drives the main gear 27 to rotate, and then drives the auxiliary gear 28 through gear meshing, causing the two dispersing components 20 to rotate synchronously in opposite directions. The reverse rotation of the pair of dispersing components 20 effectively disperses any clumps that may form in the powdered medicine during transport, preventing blockages and improving the uniformity of the material discharge. The drive unit 19 employs a combination of a first drive motor 25, a first reducer 26, and gear transmission to ensure stable and controllable rotation speed of the dispersing unit 20, adapting to the dispersing requirements of powders with different particle sizes and moisture content. Furthermore, the high precision of the gear meshing transmission reduces operating noise and vibration. The bolted connection between the connecting pipe 17 and the dispersing box 18 facilitates disassembly and cleaning, meeting the hygiene requirements of pharmaceutical production.

[0051] The two ends of the connecting rod 23 of the dispersing component 20 are rotatably connected to the dispersing box 18, and several dispersing rods 24 are evenly fixed on the connecting rod 23. When the connecting rod 23 rotates under the drive of the drive component 19, the dispersing rods 24 rotate synchronously with the connecting rod 23. Through direct contact between the rod body and the powder, the falling powder is physically dispersed, breaking the agglomerated structure. The distribution of multiple dispersing rods 24 on the connecting rod 23 forms a three-dimensional dispersing space, increasing the contact area with the powder, enhancing the dispersing effect, and ensuring the uniformity of the powder particles.

[0052] The power output from the first drive motor 25 is reduced in speed by the first reducer 26, driving one of the connecting rods 23 to rotate. The main gear 27 at the end of the connecting rod 23 meshes with the secondary gear 28 and the other connecting rod 23, causing them to rotate synchronously in opposite directions, ultimately achieving relative movement between the pair of dispersing components 20. The first reducer 26 reduces the output speed of the first drive motor 25 and increases the torque, adapting to the power requirements of the dispersing operation. The use of the first reducer 26 lowers the speed of the dispersing components 20, preventing powder from splashing due to excessive speed and improving dispersing efficiency. The gear meshing transmission structure is compact and the power transmission is stable, ensuring that the two dispersing components 20 rotate synchronously in opposite directions, forming a symmetrical dispersing force, preventing powder from accumulating in the dispersing box 18, and ensuring uniform dispersing.

[0053] To facilitate the control of the powder output, this embodiment is an improvement on the above embodiment. The difference from the above embodiment is that the discharge control structure 16 includes a first control valve 29, a receiving funnel 30, a second control valve 31, and a discharge guide pipe 32. One end of the first control valve 29 is detachably connected to the second discharge port 22, and the other end of the first control valve 29 is detachably connected to one end of the receiving funnel 30. The other end of the receiving funnel 30 is detachably connected to one end of the second control valve 31, and the other end of the second control valve 31 is detachably connected to one end of the discharge guide pipe 32. The other end of the discharge guide pipe 32 is configured to cooperate with the tablet press.

[0054] The powdered medicine enters the first control valve 29 through the second outlet 22 of the dispersing structure 15. After flow regulation, it enters the receiving funnel 30 for temporary storage. The flow rate is further regulated by the second control valve 31, and finally, it is precisely delivered to the tableting machine's tableting orifice through the discharge guide pipe 32. The first control valve 29 and the second control valve 31 can be independently adjusted to achieve dual control of the powder output. The first control valve 29 can be an existing electric butterfly valve or an electric gate valve, and the second control valve 31 can be an existing electric butterfly valve, an electric gate valve, or an electric ball valve.

[0055] The dual-valve design of the first control valve 29 and the second control valve 31 forms a multi-stage control system, facilitating the control of the amount of powder entering the tablet press. This prevents tablet overflow due to excessive feeding or air pressure due to insufficient feeding, thus improving the stability of tablet quality. The receiving funnel 30 acts as a buffer, balancing the material flow difference between the dispersing structure 15 and the tablet press, reducing instantaneous flow fluctuations. The discharge guide pipe 32 can be flexibly adjusted in angle or length according to the position of the tableting hole on the tablet press, ensuring accurate powder delivery and reducing material waste and contamination risks. The detachable connection facilitates individual cleaning or replacement of each component.

[0056] To facilitate material loading, this embodiment is an improvement upon the above embodiment. The difference lies in that the screw conveyor body 11 includes a screw conveyor housing 33, a screw conveyor rotor 34, screw conveyor blades 35, and a drive unit 36. The screw conveyor housing 33 is inclinedly mounted on the mounting frame 10 and fixedly connected to it. The first feed inlet 13 is located at the top of the lower end of the screw conveyor housing 33, and the first discharge outlet 14 is located at the bottom of the higher end of the screw conveyor housing 33. The screw conveyor rotor 34 is located inside the screw conveyor housing 33, with both ends penetrating the screw conveyor housing 33 and rotatably connected to it. The screw conveyor blades 35 are sleeved on the screw conveyor rotor 34 and fixedly connected to it. The drive unit 36 ​​is located at the lower end of the screw conveyor housing 33 and connected to the screw conveyor rotor 34, used to drive the screw conveyor rotor 34.

[0057] The drive unit 36 ​​includes a second drive motor 37 and a second reducer 38. The second reducer 38 is located at the lower end of the screw conveyor housing 33 and is detachably connected to the screw conveyor housing 33 by bolts. The second drive motor 37 is fixedly located on one side of the second reducer 38. The output shaft of the second drive motor 37 is fixedly connected to the input shaft of the second reducer 38. The output shaft of the second reducer 38 is fixedly connected to one end of the screw conveyor rotor 34.

[0058] A storage box 39 is provided on the lower side of the screw conveyor housing 33. The bottom of the storage box 39 is detachably connected to the first feed port 13 by bolts.

[0059] The screw conveyor housing 33 of the screw conveyor body 11 is fixed at an incline on the mounting frame 10. The powder enters the screw conveyor housing 33 from the first feed port 13 at the lower top. The second drive motor 37 of the drive unit 36 ​​drives the screw conveyor rotor 34 to rotate via the second reducer 38. The screw conveyor blades 35 on the screw conveyor rotor 34 rotate with the rotor, and push the powder upward along the inclined screw conveyor housing 33 through the screw conveyor blades 35, and finally discharge it from the first discharge port 14 at the higher bottom.

[0060] The continuous rotation of the spiral conveyor blades 35 enables continuous lifting and conveying of the pharmaceutical powder, replacing manual feeding and matching the continuous operating rhythm of the tablet press, significantly improving production efficiency. The inclined spiral conveyor housing 33 forms a closed conveying space, reducing contact between the pharmaceutical powder and the outside environment and lowering the risk of contamination. The small gap between the spiral conveyor blades 35 and the spiral conveyor housing 33 reduces material residue and improves material utilization. The drive unit 36 ​​uses a combination of a second drive motor 37 and a second reducer 38. The conveying speed can be controlled by adjusting the speed of the second drive motor 37 to adapt to different tableting capacity requirements, ensuring stable and reliable operation.

[0061] The power from the second drive motor 37, after being reduced in speed and increased in torque by the second reducer 38, directly drives the screw conveyor rotor 34 to rotate, which in turn drives the screw conveyor blades 35 to rotate, thus achieving material conveying. The second reducer 38 is detachably connected to the screw conveyor housing 33 by bolts, facilitating the maintenance and replacement of the drive unit 36. The second reducer 38 can convert the high speed of the second drive motor 37 into the low speed and high torque required for screw conveying, ensuring that the powder does not slip or clog during inclined conveying, thereby improving conveying stability.

[0062] The storage bin 39 is fixed to the lower side of the screw conveyor housing 33, and its bottom is connected to the first feed port 13 by bolts. It can pre-store a certain amount of powder and continuously feed it to the screw conveyor body 11 by gravity, reducing the need for frequent material addition. The buffering effect of the storage bin 39 reduces the frequency of manual feeding to the first feed port 13, further reducing manual intervention, extending continuous production time, and improving efficiency.

[0063] The storage bin 39 can also be directly connected to the powder conveying device, which will convey the powder into the storage bin 39, further reducing manual intervention.

[0064] A rotary tablet press includes the rotary tablet feeding mechanism described above, and also includes a rotary tablet press body 40. A discharge guide pipe 32 is disposed above the rotary tablet press body 40, and one end of the discharge guide pipe is configured to cooperate with the tablet forming hole on the rotary tablet press body 40.

[0065] The rotary tablet press body 40 can be a conventional rotary tablet press. By replacing the feeding structure in a traditional rotary tablet press with the rotary tablet feeding mechanism described in this invention, automatic feeding of the rotary tablet press can be achieved.

[0066] Working principle of this utility model:

[0067] This invention uses a mounting frame 10 to fix an inclined screw conveyor body 11. The screw conveyor body 11 transports the powdered medicine from the first inlet 13 at the top of the lower end of the body to the first outlet 14 at the bottom of the higher end, and then outputs it to the tablet press via the powder discharge assembly 12 at the bottom of the higher end of the screw conveyor body 11, thus achieving automatic feeding. This invention improves production efficiency by matching the continuous mechanical conveying speed with the tablet press's operating speed, while employing a closed conveying path to reduce material exposure and lower the risk of cross-contamination.

[0068] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0069] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary tablet compressing and feeding mechanism, characterized in that, include: Mounting frame (10) is used to mount the screw conveyor body; The screw conveyor body (11) is inclinedly mounted on the mounting frame (10) for lifting the powder and conveying it to the powder discharge assembly. The screw conveyor body (11) is provided with a first feed inlet (13) and a first discharge outlet (14). The first feed inlet (13) is located at the top of the lower end of the screw conveyor body (11), and the first discharge outlet (14) is located at the bottom of the higher end of the screw conveyor body (11). The powder discharge assembly (12) is located below the higher end of the screw conveyor body (11). One end of the powder discharge assembly (12) is detachably connected to the first discharge port (14), and the other end is set in conjunction with the tablet press to control the output of the powder and transport the powder to the tablet press.

2. The rotary tablet compressing and feeding mechanism according to claim 1, characterized in that, The powder discharging assembly (12) includes a dispersing structure (15) and a discharging control structure (16). One end of the dispersing structure (15) is detachably connected to the first discharge port (14) on the screw conveyor body (11). The discharging control structure (16) is set at the other end of the dispersing structure (15). One end of the discharging control structure (16) is detachably connected to the dispersing structure (15), and the other end is set in conjunction with the tablet press.

3. The rotary tablet compressing and feeding mechanism according to claim 2, characterized in that, The dispersing structure (15) includes a connecting pipe (17), a dispersing box (18), a driving component (19), and a pair of dispersing components (20). One end of the connecting pipe (17) is detachably connected to the first discharge port (14) by bolts. The top of the dispersing box (18) is provided with a second inlet (21) that communicates with the internal space of the dispersing box (18). The other end of the connecting pipe (17) is detachably connected to the second inlet (21) by bolts. The bottom of the dispersing box (18) is provided with a second discharge port (22) that communicates with the interior of the dispersing box (18). One end of the discharge control structure (16) is detachably connected to the second discharge port (22). A pair of dispersing components (20) are fitted inside the dispersing box (18) and are rotatably connected to the dispersing box (18). The driving component (19) is installed on the dispersing box (18) and is used to drive the pair of dispersing components (20).

4. The rotary tablet compressing and feeding mechanism according to claim 3, characterized in that, The disassembly component (20) includes a connecting rotating rod (23) and several disassembly rods (24). The two ends of the connecting rotating rod (23) pass through the disassembly box (18) and are rotatably connected to the disassembly box (18). Several disassembly rods (24) are respectively set on the connecting rotating rod (23) and one end is fixedly connected to the connecting rotating rod (23).

5. A rotary tablet compressing and feeding mechanism according to claim 4, characterized in that, The drive unit (19) includes a first drive motor (25), a first reducer (26), a main gear (27), and a secondary gear (28). The first drive motor (25) is fixedly installed on one side of the first reducer (26). The output shaft of the first drive motor (25) is fixedly connected to the input shaft of the first reducer (26). The first reducer (26) is fixedly installed on one side of the disassembly box (18). The output shaft of the first reducer (26) is fixedly connected to one end of the connecting rod (23) in one of the disassembly components (20). The main gear (27) is fixedly installed at the other end of the connecting rod (23). The secondary gear (28) is fixedly installed at the end of one end of the connecting rod (23) in another disassembly component (20) and meshes with the main gear (27).

6. A rotary tablet compressing and feeding mechanism according to claim 5, characterized in that, The discharge control structure (16) includes a first control valve (29), a receiving funnel (30), a second control valve (31), and a discharge guide pipe (32). One end of the first control valve (29) is detachably connected to the second discharge port (22), and the other end of the first control valve (29) is detachably connected to one end of the receiving funnel (30). The other end of the receiving funnel (30) is detachably connected to one end of the second control valve (31), and the other end of the second control valve (31) is detachably connected to one end of the discharge guide pipe (32). The other end of the discharge guide pipe (32) is configured to cooperate with the tablet press.

7. A rotary tablet compressing and feeding mechanism according to claim 6, characterized in that, The main body (11) of the screw conveyor includes a screw conveyor housing (33), a screw conveyor rotor (34), a screw conveyor blade (35), and a drive unit (36). The screw conveyor housing (33) is inclinedly mounted on the mounting frame (10) and fixedly connected to the mounting frame (10). The first feed inlet (13) is located at the top of the lower end of the screw conveyor housing (33), and the first discharge outlet (14) is located at the bottom of the higher end of the screw conveyor housing (33). The screw conveyor rotor (34) is located inside the screw conveyor housing (33). Both ends of the screw conveyor rotor (34) pass through the screw conveyor housing (33) and are rotatably connected to the screw conveyor housing (33). The screw conveyor blade (35) is sleeved on the screw conveyor rotor (34) and fixedly connected to the screw conveyor rotor (34). The drive unit (36) is located at the end of the lower end of the screw conveyor housing (33) and is connected to the screw conveyor rotor (34) for driving the screw conveyor rotor (34).

8. A rotary tablet compressing and feeding mechanism according to claim 7, characterized in that, The drive unit (36) includes a second drive motor (37) and a second reducer (38). The second reducer (38) is located at the lower end of the screw conveyor housing (33) and is detachably connected to the screw conveyor housing (33) by bolts. The second drive motor (37) is fixedly located on one side of the second reducer (38). The output shaft of the second drive motor (37) is fixedly connected to the input shaft of the second reducer (38). The output shaft of the second reducer (38) is fixedly connected to one end of the screw conveyor rotor (34).

9. A rotary tablet compressing and feeding mechanism according to claim 8, characterized in that, A storage box (39) is provided on the lower side of the spiral conveyor housing (33), and the bottom of the storage box (39) is detachably connected to the first feed port (13) by bolts.

10. A rotary tablet compressor, characterized in that, The rotary tableting feeding mechanism according to any one of claims 1-9 further includes a rotary tableting machine body (40), and a discharge guide tube (32) is disposed above the rotary tableting machine body (40), with one end cooperating with the tableting hole on the rotary tableting machine body (40).

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