A medicine powder quantitative filling mechanism

By designing the movable and moving components of the drug powder quantitative filling mechanism, the problems of powder agglomeration causing clogging of the feed port and inaccurate filling were solved, achieving continuous and uniform feeding of drug powder, and improving production efficiency and drug quality.

CN224477355UActive Publication Date: 2026-07-10JILIN AOKANG MEDICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN AOKANG MEDICAL TECH CO LTD
Filing Date
2025-09-08
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Pharmaceutical powders are prone to clumping during storage and transportation, leading to blockage of the feed inlet and inaccurate filling dosage, which affects production efficiency and drug quality.

Method used

A pharmaceutical powder quantitative filling mechanism was designed, comprising a movable component and a moving component. The movable component uses a dual-axis motor to drive a movable rod and a unblocking shaft to prevent powder from clumping. The moving component uses a rotating shaft and a cam to generate a knocking action to loosen the powder and ensure uniform feeding.

Benefits of technology

It effectively prevents powder from clumping and clogging the feed inlet, ensures continuous filling, improves production efficiency and filling dosage accuracy, and ensures drug quality and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medicine processing, concretely is a kind of medicine powder ration filling mechanism, including filling machine, the hopper is fixedly installed at filling machine top;Further include movable assembly, be used to crush the medicine powder of lumping inside hopper;Moving assembly is used to knock the surface in hopper, the movable assembly includes: fixed frame, the fixed frame is fixedly installed on the outer wall of filling machine, double-shaft motor is fixedly installed in the fixed frame inboard, the inboard fixed mounting of fixed frame has fixed block, by the setting of movable assembly, double-shaft motor starts to drive movable rod rotation, makes movable block to slide on the surface of fixed block, is driven by connecting rod transmission, connecting strip drives dredging shaft to insert inside hopper. Movable block sliding also makes gear disc and other components linkage, drive dredging shaft to slide in hopper, prevent powder lumping to block discharge port, guarantee filling continuity, improve production efficiency, let discharge more smoothly.
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Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical processing technology, specifically to a pharmaceutical powder quantitative filling mechanism. Background Technology

[0002] In the pharmaceutical industry, the precise quantitative filling of drug powders is a crucial step in the drug manufacturing process. Accurate quantitative filling ensures that the dosage of the active ingredient in each drug unit (such as capsules or tablets) is accurate during the initial powder filling stage. This is essential for guaranteeing drug quality, efficacy, and patient safety. Different drug formulations have strict dosage standards; only with accurate filling can the drug achieve its intended therapeutic effect in clinical applications, while also meeting the stringent quality requirements of drug regulatory authorities. Furthermore, the filling process needs to be highly continuous to ensure the efficient operation of the entire production line, improve production efficiency, and meet market demand for drugs.

[0003] However, pharmaceutical powders often possess certain characteristics that present numerous challenges to dosage filling operations. Many pharmaceutical powders are prone to clumping during storage and transportation due to environmental factors such as humidity and temperature. These clumped powders not only have poor flowability but can also accumulate at the feeding inlet of the filling equipment, causing blockages. Once the feeding inlet is blocked, the filling operation is forced to stop, requiring manual unblocking and cleaning, severely impacting the continuity of filling and significantly reducing production efficiency. Furthermore, the presence of clumping can lead to inaccurate dosages. When clumped powder is fed simultaneously with loose powder, it is difficult to ensure a uniform amount of powder in each dose of medicine. This can result in inconsistent levels of active ingredients, severely negatively impacting drug quality and efficacy, and reducing feeding smoothness and production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative filling mechanism for pharmaceutical powder, which solves the problems of clogging of the feed port and inaccurate filling dosage caused by powder agglomeration during the existing pharmaceutical powder filling process.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pharmaceutical powder quantitative filling mechanism includes a filling machine with a hopper fixedly installed on its top; it also includes a movable component for crushing clumps of pharmaceutical powder inside the hopper; and a moving component for striking the surface of the hopper. The movable component includes a fixed frame fixedly installed on the outer wall of the filling machine, a dual-axis motor fixedly installed on the inner side of the fixed frame, a fixed block fixedly installed on the inner side of the fixed frame, a movable rod rotatably connected to the surface of the fixed block, the movable rod being fixedly installed on the surface of the output shaft of the dual-axis motor, a movable block hinged to the outer side of the movable rod, the movable block being slidably connected to the surface of the fixed block, a connecting rod hinged to the middle end of the movable rod, a connecting strip hinged to the surface of the connecting rod, and a clearing shaft provided on the surface of the connecting strip.

[0007] Preferably, a short plate is fixedly installed on the outer wall of the movable block, a gear is rotatably connected to the surface of the fixed block, a spiral spring is fixedly installed on the surface of the gear, a gear meshes at the top of the gear, a rack meshes on the outside of the gear, and the rack is slidably connected inside the connecting strip.

[0008] Preferably, a connecting shaft is fixedly mounted on the surface of the rack, the connecting shaft passes through the connecting bar, and the unblocking shaft is fixedly mounted on the surface of the connecting shaft.

[0009] Preferably, the moving component includes: a rotating shaft, which is fixedly mounted on the surface of the gear disk, a threaded rod is fixedly mounted on the inner side of the rotating shaft, a helical rod is fixedly mounted on the inner side of the threaded rod, and a cam is threadedly connected to the surface of the helical rod.

[0010] Preferably, a sliding shaft is rotatably connected to the outer side of the cam, and the sliding shaft is slidably connected inside the rotating shaft.

[0011] Preferably, the active components are provided in two sets, and both sets of active components are symmetrically arranged with the center line of the filling machine as the axis of symmetry.

[0012] Preferably, the surface of the fixing block is provided with an arc-shaped groove, and the surface of the spiral rod is provided with a spiral groove.

[0013] By employing the above technical solution, this utility model provides a pharmaceutical powder quantitative filling mechanism. It possesses at least the following beneficial effects:

[0014] (1) Through the setting of the movable components, the dual-axis motor starts and drives the movable rod to rotate, so that the movable block slides on the surface of the fixed block. Through the transmission of the connecting rod, the connecting strip drives the unblocking shaft to insert into the hopper. The sliding of the movable block also causes the toothed disc and other components to move together, driving the unblocking shaft to slide in the hopper, preventing powder from agglomerating and blocking the discharge port, ensuring the continuity of filling, improving production efficiency, and making the discharge smoother.

[0015] (2) By setting up the moving component, the rotating shaft rotates with the toothed disc, driving the threaded rod and the screw rod to rotate, providing power to the cam. When the screw rod rotates, the cam moves along its axial direction according to the threaded transmission. The sliding shaft plays a guiding and limiting role. During the movement of the cam, it will intermittently hit the surface of the hopper material, producing a knocking effect, making the powder in the hopper material more uniform and loose, avoiding local accumulation and compaction, ensuring uniform powder feeding during quantitative filling, and improving the accuracy of filling dosage. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0017] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0019] Figure 3 This is a front view schematic diagram of the fixing frame in this utility model;

[0020] Figure 4 This is a front view structural diagram of the movable component in this utility model;

[0021] Figure 5 This is a front view structural diagram of the mobile component in this utility model.

[0022] In the diagram: 1. Filling machine; 2. Hopper; 3. Moving component; 31. Fixed frame; 32. Dual-shaft motor; 33. Fixed block; 330. Arc groove; 34. Moving rod; 35. Moving block; 36. Connecting rod; 37. Connecting strip; 38. Unblocking shaft; 39. Short plate; 310. Gear disc; 311. Scroll spring; 312. Gear; 313. Rack; 314. Connecting shaft; 4. Moving component; 41. Rotating shaft; 42. Threaded rod; 44. Spiral rod; 440. Spiral groove; 45. Cam; 46. Sliding shaft. Detailed Implementation

[0023] 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.

[0024] Example 1

[0025] A pharmaceutical powder metering filling mechanism, such as Figures 1-4As shown, it includes a filling machine 1, and a hopper 2 is fixedly installed on the top of the filling machine 1;

[0026] It also includes an active component 3 for crushing the clumps of medicine powder inside the feed hopper 2;

[0027] Moving component 4 is used to tap the surface of the hopper 2:

[0028] First, the movable component 3 includes: a fixed frame 31, which is fixedly installed on the outer wall of the filling machine 1; a dual-axis motor 32 is fixedly installed on the inner side of the fixed frame 31; a fixed block 33 is fixedly installed on the inner side of the fixed frame 31; a movable rod 34 is rotatably connected to the surface of the fixed block 33; the movable rod 34 is fixedly installed on the surface of the output shaft of the dual-axis motor 32; a movable block 35 is hinged to the outer side of the movable rod 34; the movable block 35 is slidably connected to the surface of the fixed block 33; and a connecting rod 36 is hinged to the middle end of the movable rod 34. A connecting strip 37 is hinged, and a dredging shaft 38 is provided on the surface of the connecting strip 37. A short plate 39 is fixedly installed on the outer wall of the movable block 35. A gear 310 is rotatably connected to the surface of the fixed block 33. A spiral spring 311 is fixedly installed on the surface of the gear 310. A gear 312 meshes with the top of the gear 310. A rack 313 meshes with the outside of the gear 312. The rack 313 is slidably connected inside the connecting strip 37. The spiral spring 311 installed on the surface of the gear 310 can achieve the effect of resetting after the gear 310 swings upward.

[0029] Secondly, a connecting shaft 314 is fixedly installed on the surface of the rack 313. The connecting shaft 314 passes through the connecting strip 37, and the unblocking shaft 38 is fixedly installed on the surface of the connecting shaft 314. The connection effect between the connecting shaft 314 and the unblocking shaft 38 can be improved through the connecting shaft 314 on the surface of the rack 313.

[0030] In this embodiment, through the setting of the movable component 3, the dual-axis motor 32 starts and drives the movable rod 34 to rotate, causing the movable block 35 to slide on the surface of the fixed block 33. Through the transmission of the connecting rod 36, the connecting strip 37 drives the unblocking shaft 38 to insert into the hopper 2. The sliding of the movable block 35 also causes the toothed disc 310 and other components to move together, driving the unblocking shaft 38 to slide inside the hopper 2, preventing powder from agglomerating and blocking the discharge port, ensuring continuous filling, improving production efficiency, and making the discharge smoother.

[0031] Example 2

[0032] like Figure 5 As shown, the moving component 4 includes: a rotating shaft 41, which is fixedly mounted on the surface of the gear disk 310; a threaded rod 42 is fixedly mounted on the inner side of the rotating shaft 41; a helical rod 44 is fixedly mounted on the inner side of the threaded rod 42; and a cam 45 is threadedly connected to the surface of the helical rod 44.

[0033] Furthermore, a sliding shaft 46 is rotatably connected to the outer side of the cam 45, and the sliding shaft 46 is slidably connected inside the rotating shaft 41. The cam 45 is made of rubber, so it is not restricted when the cam 45 strikes the surface of the hopper 2.

[0034] Finally, there are two sets of movable components 3, and both sets of movable components 3 are symmetrically arranged with the center line of the filling machine 1 as the axis of symmetry. The surface of the fixed block 33 is provided with an arc groove 330. The movable block 35 can slide upward in an arc on the surface of the fixed block 33 through the arc groove 330. The surface of the spiral rod 44 is provided with a spiral groove 440. The cam 45 can slide and rotate on the surface of the spiral rod 44 through the spiral groove 440.

[0035] In this embodiment, through the setting of the moving component 4, the rotating shaft 41 rotates with the gear disk 310, driving the threaded rod 42 and the helical rod 44 to rotate, providing power to the cam 45. When the helical rod 44 rotates, the cam 45 moves along its axial direction according to the threaded transmission. The sliding shaft 46 plays a guiding and limiting role. During the movement of the cam 45, it will intermittently hit the surface of the hopper 2, producing a knocking effect, making the powder in the hopper 2 more uniform and loose, avoiding local accumulation and compaction, ensuring uniform powder feeding during quantitative filling, and improving the accuracy of filling dosage.

[0036] In use, the pharmaceutical powder quantitative filling machine 1 of this utility model mainly relies on the filling machine 1 to achieve the basic filling function. The hopper 2 is used to hold the pharmaceutical powder. The movable component 3 and the moving component 4 work together. The movable component 3 is responsible for handling the clumps of pharmaceutical powder in the hopper 2, crushing them to ensure smooth powder feeding. The fixed frame 31 is installed on the outer wall of the filling machine 1. The dual-shaft motor 32 on its inner side serves as the power source for the movable component 3. After the dual-shaft motor 32 is started, its output shaft rotates, driving the movable rod 34 fixedly connected to it to rotate together. The movable rod 34 is rotatably connected to the surface of the fixed block 33, and the outer side is hinged to the movable block 35. The movable block 35 can slide on the surface of the fixed block 33. As the movable rod 34 rotates, the movable block 35 slides upward along the surface of the fixed block 33, realizing the conversion of the rotational motion of the motor into the sliding motion of the movable block 35, transmitting power for the action of subsequent components. A connecting rod 36 is hinged to the middle of the movable rod 34, and the connecting rod 36 is hinged to the connecting strip 37. When the movable rod 34 rotates, the connecting rod 36 is hinged to the connecting strip 37. When the movable block 35 rotates and slides, the connecting rod 36 drives the connecting bar 37 to swing downwards. When the connecting bar 37 swings downwards, it drives the unblocking shaft 38 to swing downwards, allowing the unblocking shaft 38 to insert into the inside of the hopper 2. When the movable block 35 slides, the short plate 39 on the outer wall of the movable block 35 abuts against the surface of the toothed disc 310 rotatably connected to the surface of the fixed block 33. When the toothed disc 310 is abutted, it rotates upwards and drives the top meshing gear 312 to rotate. When the gear 312 rotates, it drives the rack 313 to slide inside the connecting bar 37. When the rack 313 slides, it transmits power, causing the connecting shaft 314 on the rack 313 to slide and drive the unblocking shaft 38 to slide inside the hopper 2, preventing powder from caking and blocking the discharge port, ensuring continuous filling, improving the smoothness of discharge, and increasing production efficiency.

[0037] The power source of the moving component 4 is related to that of the moving component 3. The rotating shaft 41 is fixedly installed on the surface of the gear disk 310, so when the gear disk 310 rotates, the rotating shaft 41 will rotate synchronously. The threaded rod 42 and the helical rod 44 are fixedly installed on the inner side of the rotating shaft 41 in sequence. As the rotating shaft 41 rotates, the threaded rod 42 and the helical rod 44 also rotate together, providing the power basis for the subsequent striking action. The surface of the helical rod 44 is threadedly connected to a cam 45. When the helical rod 44 rotates, according to the principle of thread transmission, the cam 45 will move axially along the helical rod 44. At the same time, the sliding shaft 46 rotatably connected to the outer side of the cam 45 is slidably connected inside the rotating shaft 41. The sliding shaft 46 plays a guiding and limiting role for the cam 45, ensuring that the cam 45 can stably move axially and rotate accordingly. During its movement, the cam 45 intermittently impacts the surface of the hopper 2, producing a knocking effect. This causes the powder in the hopper 2 to become more uniform and loose after being vibrated, preventing local accumulation and compaction of the powder due to prolonged standing. This further ensures that the powder is fed in a uniform state during quantitative filling, thereby improving the accuracy of the filling dosage.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pharmaceutical powder quantitative filling mechanism, comprising a filling machine (1), characterized in that: The top of the filling machine (1) is fixedly installed with a hopper (2); It also includes an active component (3) for crushing the drug powder that has clumped inside the hopper (2); The moving component (4) is used to strike the surface of the hopper (2): The active component (3) includes: a fixed frame (31), which is fixedly installed on the outer wall of the filling machine (1), a dual-axis motor (32) is fixedly installed on the inner side of the fixed frame (31), a fixed block (33) is fixedly installed on the inner side of the fixed frame (31), a movable rod (34) is rotatably connected to the surface of the fixed block (33), the movable rod (34) is fixedly installed on the surface of the output shaft of the dual-axis motor (32), a movable block (35) is hinged to the outer side of the movable rod (34), the movable block (35) is slidably connected to the surface of the fixed block (33), a connecting rod (36) is hinged to the middle end of the movable rod (34), a connecting strip (37) is hinged to the surface of the connecting rod (36), and a dredging shaft (38) is provided on the surface of the connecting strip (37).

2. The pharmaceutical powder metering filling mechanism according to claim 1, characterized in that: A short plate (39) is fixedly installed on the outer wall of the movable block (35). A gear disk (310) is rotatably connected to the surface of the fixed block (33). A spiral spring (311) is fixedly installed on the surface of the gear disk (310). A gear (312) meshes with the top of the gear disk (310). A rack (313) meshes with the outside of the gear (312). The rack (313) is slidably connected inside the connecting strip (37).

3. The pharmaceutical powder quantitative filling mechanism according to claim 2, characterized in that: A connecting shaft (314) is fixedly installed on the surface of the rack (313), the connecting shaft (314) passes through the connecting strip (37), and the unblocking shaft (38) is fixedly installed on the surface of the connecting shaft (314).

4. The pharmaceutical powder metering filling mechanism according to claim 1, characterized in that: The moving component (4) includes: a rotating shaft (41), which is fixedly mounted on the surface of the gear disk (310), a threaded rod (42) is fixedly mounted on the inner side of the rotating shaft (41), a helical rod (44) is fixedly mounted on the inner side of the threaded rod (42), and a cam (45) is threadedly connected to the surface of the helical rod (44).

5. A pharmaceutical powder quantitative filling mechanism according to claim 4, characterized in that: The cam (45) is rotatably connected to a sliding shaft (46), which is slidably connected inside the rotating shaft (41).

6. The pharmaceutical powder metering filling mechanism according to claim 1, characterized in that: The active component (3) is provided in two sets, and both sets of the active component (3) are symmetrically arranged with the center line of the filling machine (1) as the axis of symmetry.

7. A pharmaceutical powder metering filling mechanism according to claim 4, characterized in that: The surface of the fixing block (33) is provided with an arc groove (330), and the surface of the spiral rod (44) is provided with a spiral groove (440).