A pharmaceutical raw material dispensing device

By introducing a sieving component into the drug raw material batching device, and using a motor to drive the sieving box to swing, uniform sieving of drug particles is achieved, which solves the problem of uneven particle size after drug grinding and improves the quality and efficiency of the batching process.

CN224423106UActive Publication Date: 2026-06-30JIANGXI RONGXING PHARMA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI RONGXING PHARMA
Filing Date
2025-07-28
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing grinding equipment makes it difficult to sieve the drugs after grinding, resulting in uneven drug particle size and affecting the subsequent batching process.

Method used

A drug raw material dispensing device was designed, which includes a grinding component and a sieving component. The sieving box is driven by a fourth motor to swing back and forth periodically. The sieve plate is used to sieve the particles. Particles with small sieve holes enter the medicine box, while larger particles remain on the sieve plate or in the sieving box, thus achieving uniform sieving of the drug.

Benefits of technology

This solves the problem of uneven particle size after drug grinding, ensuring the quality and efficiency of subsequent batching processes, and facilitating sieve cleaning and collection and re-grinding of large particles.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of pharmaceutical raw material preparation technology, and discloses a pharmaceutical raw material preparation device, including a preparation base. A grinding assembly is provided at the upper end of the preparation base. The grinding assembly includes a first motor disposed on the upper surface of the preparation base, and a ball screw is provided at the output end of the first motor. A connecting plate is sleeved on the outer wall of the ball screw. By setting a sieving assembly, during the start of the fourth motor, the sieving box periodically swings back and forth. The solid drug in the sieving box swings back and forth periodically with the sieving box, and the sieve plate sieves the drug. Solid particles smaller than the sieve holes fall through the sieve plate into the drug tank for collection, while larger particles remain on the upper end of the sieve plate and in the sieving box. This solves the problem that existing grinding devices are inconvenient for sieving after grinding, resulting in uneven drug particle size and affecting subsequent preparation.
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Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical raw material preparation technology, and in particular to a pharmaceutical raw material preparation device. Background Technology

[0002] Pharmaceutical ingredients refer to the various components and raw materials used in the pharmaceutical process. These components can be chemical substances, plant extracts, animal tissues, microorganisms, minerals, etc. They are used to manufacture the active ingredients or auxiliary ingredients of drugs. Pharmaceutical ingredients can include the main active ingredients of drugs, stabilizers, solvents, fillers, pigments, flavorings, preservatives, etc. The proportion and combination of these components in the pharmaceutical preparation vary depending on the characteristics and uses of the drug. The selection and use of pharmaceutical ingredients are crucial to ensuring the quality, safety and efficacy of drugs.

[0003] Some solid drugs require grinding the medicinal materials into fine particles during the preparation process to significantly increase the contact area with the solvent and accelerate the dissolution and diffusion of the active ingredients. However, existing grinding devices are not convenient for sieving after grinding the drugs, resulting in uneven particle size after grinding, which affects subsequent preparation. Utility Model Content

[0004] Given that some solid drugs require grinding medicinal materials into fine particles during the formulation process to significantly increase the contact area with the solvent and accelerate the dissolution and diffusion of active ingredients, but existing grinding devices are not convenient for sieving after grinding the drugs, resulting in uneven particle size after grinding, which affects the subsequent formulation, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a drug raw material dispensing device, including a dispensing base, a grinding assembly at the upper end of the dispensing base, a first motor disposed on the upper surface of the dispensing base, a ball screw at the output end of the first motor, a connecting plate sleeved on the outer wall of the ball screw, a grinding roller at the lower end of the connecting plate, a receiving seat at the lower end of the grinding roller, a grinding chamber inserted in the inner cavity of the receiving seat, and a sieving assembly at the middle of the dispensing base, the sieving assembly including a grinding assembly disposed at the middle of the outer wall of the dispensing base. The first fixed plate has a fourth motor at its upper end, a turntable at the output end of the fourth motor, an adjusting rod at the lower end of the turntable away from the axis, an adjusting plate sleeved on the outer wall of the adjusting rod, a second sliding rod at the middle of the outer wall of the adjusting plate, a toothed plate at the end of the second sliding rod away from the adjusting plate, and a spring sleeved on the outer wall of the second sliding rod. The middle of the feeding seat has a second fixed plate, a gear at the end of the second fixed plate away from the feeding seat, a screening box at the end of the gears close to each other, and a screen plate inserted into the lower end of the inner wall of the screening box.

[0006] In a preferred embodiment of the drug raw material dispensing device of this utility model, the adjusting rod is movably inserted into the adjusting plate, the second sliding rod is movably inserted into the middle end of the dispensing seat, and the two ends of the spring are fixedly connected to the adjusting plate and the dispensing seat respectively.

[0007] In a preferred embodiment of the drug raw material dispensing device of this utility model, the gear and the front end of the second fixed plate are rotatably connected, the middle part of the end of the gear away from the second fixed plate is fixedly connected to the outer wall of the screening box, and the gear and the gear plate mesh with each other.

[0008] In a preferred embodiment of the drug raw material dispensing device of this utility model, the sieve plate is movably inserted into the inner wall of the lower end of the sieve box, and screws are threaded into the four corners of the lower end of the sieve box. The sieve plate has through holes at the four corners that cooperate with the screws, and the front end of the screw is movably inserted into the through holes.

[0009] In a preferred embodiment of the drug raw material dispensing device of this utility model, the connecting plate is provided with a thread that cooperates with the ball screw, the lower end of the ball screw is rotatably connected to the receiving seat, the upper end of the outer wall of the receiving seat is provided with a second motor, the output end of the second motor is connected to the grinding chamber, and the end of the grinding chamber away from the second motor is rotatably connected to the upper end of the inner wall of the receiving seat.

[0010] In a preferred embodiment of the drug raw material dispensing device of this utility model, the upper end of the connecting plate is provided with a third motor, the output end of the third motor is fixedly connected to the middle of the upper end of the grinding roller, the upper end of the grinding roller is provided with multiple sets of movable rods, the lower end of the connecting plate is provided with an annular sliding groove that cooperates with the movable rods, and a first sliding rod is inserted into the triangular part of the connecting plate away from the ball screw, the upper end and the lower end of the first sliding rod are fixedly connected to the dispensing seat and the receiving seat respectively.

[0011] In a preferred embodiment of the drug raw material dispensing device of this utility model, a PLC controller is provided on the upper surface of the dispensing base, and the first motor, the second motor, the third motor, the fourth motor and the PLC controller are electrically connected, and a medicine box is placed at the bottom of the dispensing base.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects:

[0013] This invention, by setting up a sieving component, allows the sieving box to periodically swing back and forth during the startup of the fourth motor. The solid medicine inside the sieving box swings back and forth periodically with the sieving box, and the sieve plate sieves the medicine. Solid particles smaller than the sieve holes fall through the sieve plate into the medicine box for collection, while larger particles remain on the upper part of the sieve plate and inside the sieving box. This solves the problem that existing grinding devices are not convenient for sieving after grinding the medicine, resulting in uneven particle size after grinding, which affects subsequent batching.

[0014] 2. In this utility model, after the screening is completed, the fourth motor is turned off, and the operator can unscrew the screws from the four corners of the bottom of the screening box to pull the screen plate out from the bottom of the inner wall of the screening box. This not only makes it convenient to clean and maintain the screen plate, but also allows the operator to collect the larger solid drug particles that fall into the screening box after the screen plate is disassembled and put them back into the grinding chamber for secondary grinding. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the drug raw material dispensing device of this utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional view of the grinding component of the drug raw material dispensing device of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the connecting plate and movable rod of the drug raw material dispensing device of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the screening component of the drug raw material dispensing device of this utility model;

[0019] Figure 5 This is a partial exploded three-dimensional structural diagram of the screening component of the drug raw material mixing device of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Batching base; 2. Grinding assembly; 201. First motor; 202. Ball screw; 203. Connecting plate; 204. Grinding roller; 205. Receiving seat; 206. Second motor; 207. Grinding chamber; 208. Movable rod; 209. First slide rod; 210. Third motor; 3. Screening assembly; 301. First fixed plate; 302. Fourth motor; 303. Turntable; 304. Adjusting rod; 305. Adjusting plate; 306. Second slide rod; 307. Toothed plate; 308. Spring; 309. Second fixed plate; 310. Gear; 311. Screening box; 312. Screen plate; 313. Screw; 4. Medicine tank; 5. PLC controller. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example

[0023] Reference Figures 1-3 This is the first embodiment of the present invention, which provides a drug raw material dispensing device, including a dispensing base 1. A grinding component 2 is provided at the upper end of the dispensing base 1. The grinding component 2 includes a first motor 201 provided on the upper end surface of the dispensing base 1. A ball screw 202 is provided at the output end of the first motor 201. A connecting plate 203 is sleeved on the outer wall of the ball screw 202. A grinding roller 204 is provided at the lower end of the connecting plate 203. A receiving seat 205 is provided at the lower end of the grinding roller 204. A grinding chamber 207 is inserted into the inner cavity of the receiving seat 205.

[0024] The connecting plate 203 has a thread that mates with the ball screw 202. The lower end of the ball screw 202 is rotatably connected to the receiving seat 205. The upper end of the outer wall of the receiving seat 205 is provided with a second motor 206. The output end of the second motor 206 is connected to the grinding chamber 207. The end of the grinding chamber 207 away from the second motor 206 is rotatably connected to the upper end of the inner wall of the receiving seat 205.

[0025] The upper end of the connecting plate 203 is provided with a third motor 210. The output end of the third motor 210 is fixedly connected to the middle of the upper end of the grinding roller 204. The upper end of the grinding roller 204 is provided with multiple sets of movable rods 208. The lower end of the connecting plate 203 is provided with an annular sliding groove that cooperates with the movable rods 208. The first sliding rod 209 is inserted into the triangular part of the connecting plate 203 away from the ball screw 202. The upper and lower ends of the first sliding rod 209 are fixedly connected to the feeding seat 1 and the receiving seat 205, respectively.

[0026] The fixed drug to be ground is placed in the grinding chamber 207. The first motor 201 is started to drive the ball screw 202 to rotate. The connecting plate 203 slides down along the first slide bar 209 until the grinding roller 204 is inserted into the grinding chamber 207. At this time, the first motor 201 is turned off. Then, the third motor 210 is started to drive the grinding roller 204 to rotate. The grinding roller 204 grinds and crushes the solid drug placed in the grinding chamber 207 into solid particles. During the rotation of the grinding roller 204, the movable rod 208 slides along the annular groove opened at the lower end of the connecting plate 203, which can limit the shaking of the grinding roller 204 and increase the stability of the grinding roller 204 during the grinding process. After grinding, the first motor 201 is started to rotate in the opposite direction, driving the grinding roller 204 to move upward and leave the grinding chamber 207. The second motor 206 is started to drive the grinding chamber 207 to rotate 180°, so that the opening of the grinding chamber 207 faces downward. The drug particles in the grinding chamber 207 fall down along the receiving seat 205, which facilitates subsequent screening. Example

[0027] Reference Figure 1 , Figure 4 and Figure 5 This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that: a screening component 3 is provided at the middle of the batching base 1. The screening component 3 includes a first fixing plate 301 located at the middle of the outer wall of the batching base 1. A fourth motor 302 is provided at the upper end of the first fixing plate 301. A turntable 303 is provided at the output end of the fourth motor 302. An adjusting rod 304 is provided at the lower end of the turntable 303 away from the axis. An adjusting plate 305 is sleeved on the outer wall of the adjusting rod 304. A second sliding rod 306 is provided at the middle of the outer wall of the adjusting plate 305. A toothed plate 307 is provided at the end of the second sliding rod 306 away from the adjusting plate 305. A spring 308 is sleeved on the outer wall of the second sliding rod 306. A second fixing plate 309 is provided at the middle of the batching base 1. A gear 310 is provided at the end of the second fixing plate 309 away from the batching base 1. A screening box 311 is provided at the end of the gears 310 that are close to each other. A sieve plate 312 is inserted into the lower end of the inner wall of the screening box 311.

[0028] The adjusting rod 304 is movably inserted into the adjusting plate 305, the second sliding rod 306 is movably inserted into the middle of the feeding seat 1, and the two ends of the spring 308 are fixedly connected to the adjusting plate 305 and the feeding seat 1 respectively.

[0029] Gear 310 is rotatably connected to the front end of the second fixed plate 309. The middle part of the end of gear 310 away from the second fixed plate 309 is fixedly connected to the outer wall of screening box 311. Gear 310 and toothed plate 307 mesh with each other.

[0030] The sieve plate 312 is movably inserted into the lower inner wall of the screening box 311. The four corners of the lower end of the screening box 311 are threaded with screws 313. The four corners of the sieve plate 312 have through holes that cooperate with the screws 313. The front end of the screws 313 is movably inserted into the through holes.

[0031] The upper surface of the mixing base 1 is equipped with a PLC controller 5. The first motor 201, the second motor 206, the third motor 210, the fourth motor 302 and the PLC controller 5 are electrically connected. The medicine box 4 is placed at the bottom of the mixing base 1.

[0032] The drug particles in the grinding chamber 207 fall onto the upper end of the sieve plate 312 through the receiving seat 205. Then, the fourth motor 302 is started to drive the turntable 303 to rotate. The turntable 303 drives the adjusting rod 304 to rotate. The adjusting rod 304 slides along the inner wall of the adjusting plate 305. Driven by the adjusting rod 304, the adjusting plate 305 moves back and forth periodically along the straight direction of the second slide rod 306. When the adjusting plate 305 moves forward along the middle of the feeding seat 1 with the second slide rod 306, the adjusting plate 305 compresses the spring 308. The second slide rod 306 drives the toothed plate 307 to move forward. The toothed plate 307 and the gear 310 mesh with each other, so the toothed plate 307 drives the gear 310 to rotate. The gear 310 drives the screening box 311 to rotate a certain angle in the direction of the second slide rod 306. Similarly, when the adjusting plate 305 moves backward, under the reverse elastic force of the spring 308, the toothed plate 307 moves backward with the adjusting plate 305. The sieving box 311 rotates at a certain angle away from the second sliding rod 306. As the adjusting rod 304 slides along the inner wall of the adjusting plate 305, the sieving box 311 swings back and forth periodically. As the sieving box 311 swings back and forth periodically, the solid drug in the sieving box 311 is sieved by the sieve plate 312. Solid particles smaller than the sieve holes fall through the sieve plate 312 into the medicine box 4 for collection. Larger particles of the fixed drug remain at the upper end of the sieve plate 312 and in the sieving box 311. After sieving, the fourth motor 302 is turned off. The operator can unscrew the screws 313 from the four corners of the lower end of the sieving box 311 to pull the sieve plate 312 out from the lower end of the inner wall of the sieving box 311. This not only facilitates the cleaning and maintenance of the sieve plate 312, but also allows the operator to collect the larger solid drug particles that have fallen into the sieving box 311 after the sieve plate 312 is removed and put back into the grinding chamber 207 for secondary grinding.

[0033] The remaining structure is the same as that in Example 1.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pharmaceutical raw material dispensing device, comprising a dispensing base (1), characterized in that: The upper end of the mixing seat (1) is provided with a grinding assembly (2). The grinding assembly (2) includes a first motor (201) located on the upper surface of the mixing seat (1). The output end of the first motor (201) is provided with a ball screw (202). The outer wall of the ball screw (202) is fitted with a connecting plate (203). The lower end of the connecting plate (203) is provided with a grinding roller (204). The lower end of the grinding roller (204) is provided with a receiving seat (205). A grinding chamber (207) is inserted into the inner cavity of the receiving seat (205). The middle end of the mixing seat (1) is provided with a screening assembly (3). The screening assembly (3) includes a first fixing plate (301) located on the middle end of the outer wall of the mixing seat (1). The upper end of the first fixing plate (301) is provided with a fourth motor (302). The output end of the four motors (302) is provided with a turntable (303). The lower end of the turntable (303) is provided with an adjusting rod (304) away from the axis. The outer wall of the adjusting rod (304) is fitted with an adjusting plate (305). The middle of the outer wall of the adjusting plate (305) is provided with a second sliding rod (306). The end of the second sliding rod (306) away from the adjusting plate (305) is provided with a toothed plate (307). The outer wall of the second sliding rod (306) is fitted with a spring (308). The middle of the feeding seat (1) is provided with a second fixing plate (309). The end of the second fixing plate (309) away from the feeding seat (1) is provided with a gear (310). The end of the gear (310) that is close to each other is provided with a screening box (311). The lower end of the inner wall of the screening box (311) is inserted with a screen plate (312).

2. The pharmaceutical raw material dispensing device according to claim 1, characterized in that: The adjusting rod (304) is movably inserted into the adjusting plate (305), the second sliding rod (306) is movably inserted into the middle end of the dispensing seat (1), and the two ends of the spring (308) are fixedly connected to the adjusting plate (305) and the dispensing seat (1) respectively.

3. The pharmaceutical raw material dispensing device according to claim 1, characterized in that: The gear (310) is rotatably connected to the front end of the second fixed plate (309). The middle part of the end of the gear (310) away from the second fixed plate (309) is fixedly connected to the outer wall of the screening box (311). The gear (310) and the toothed plate (307) mesh with each other.

4. The pharmaceutical raw material dispensing device according to claim 1, characterized in that: The sieve plate (312) is movably inserted into the inner wall of the lower end of the screening box (311). The four corners of the lower end of the screening box (311) are threaded with screws (313). The four corners of the sieve plate (312) are provided with through holes that cooperate with the screws (313). The front end of the screws (313) is movably inserted into the through holes.

5. The pharmaceutical raw material dispensing device according to claim 1, characterized in that: The connecting plate (203) has a thread that mates with the ball screw (202). The lower end of the ball screw (202) is rotatably connected to the receiving seat (205). The upper end of the outer wall of the receiving seat (205) is provided with a second motor (206). The output end of the second motor (206) is connected to the grinding chamber (207). The end of the grinding chamber (207) away from the second motor (206) is rotatably connected to the upper end of the inner wall of the receiving seat (205).

6. The pharmaceutical raw material dispensing device according to claim 1, characterized in that: The upper end of the connecting plate (203) is provided with a third motor (210), the output end of the third motor (210) is fixedly connected to the middle of the upper end of the grinding roller (204), the upper end of the grinding roller (204) is provided with multiple sets of movable rods (208), the lower end of the connecting plate (203) is provided with an annular sliding groove that cooperates with the movable rods (208), the connecting plate (203) is triangularly inserted away from the ball screw (202) with a first sliding rod (209), the upper end and the lower end of the first sliding rod (209) are fixedly connected to the feeding seat (1) and the receiving seat (205) respectively.

7. The pharmaceutical raw material dispensing device according to claim 6, characterized in that: The upper surface of the dispensing base (1) is provided with a PLC controller (5). The first motor (201), the second motor (206), the third motor (210), the fourth motor (302) and the PLC controller (5) are electrically connected. A medicine box (4) is placed at the bottom of the dispensing base (1).