Medicine particle crushing and screening integrated equipment

By designing an integrated drug particle pulverizing and screening device, the device utilizes a movable plate and screen structure to achieve rapid discharge and adjustable particle size of the pulverized particles. This solves the problems of non-adjustable particle size and inconvenient discharge in existing technologies, and improves the flexibility and efficiency of the equipment.

CN224221482UActive Publication Date: 2026-05-12HARBIN CHILDRENS PHARM FACTORY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HARBIN CHILDRENS PHARM FACTORY CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing drug granulator cannot adjust the distance between the pulverizing blade and the bottom of the container according to actual needs, resulting in the inability to adjust the size of the pulverized drug particles and the inconvenience of discharging the pulverized drug particles.

Method used

An integrated device for pulverizing and screening drug particles was designed. The device achieves rapid discharge of pulverized particles through a movable plate and screen structure, and controls the particle size by adjusting the distance between the cutter and the movable plate through an electric push rod and transmission rod assembly.

Benefits of technology

实现了药物颗粒的快速排出和粒度可调,解决了粉碎后颗粒大小不可调和排出不便的问题,提高了设备的灵活性和效率。

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Abstract

The utility model discloses medicine particle crushing and screening integrated equipment, and relates to the technical field of medicine particle crushing. The medicine particle crushing and screening integrated equipment comprises a base, a shell is movably installed above the base, a movable plate is installed on one side of the shell in a penetrating and inserting mode, and a crushing and screening mechanism is arranged above the shell and comprises a screening assembly, a crushing assembly and a crushing assembly, and the screening assembly is arranged in the shell and used for screening crushed medicine particles; comprising a top cover movably installed above a shell, a connecting block is fixedly installed in the top cover, electric push rods are movably installed below the connecting block, the electric push rods are installed at the two ends of a transmission rod and are rotationally connected with the transmission rod, and the connecting block can limit the positions of the top ends of the electric push rods and allow the electric push rods to rotate. The electric push rod stretches out and draws back to drive the transmission rod to move up and down on the outer side of the guide column, the distance between the cutter and the top face of the movable plate is adjusted, and the granularity of medicine particles after smashing is controlled.
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Description

Technical Field

[0001] This utility model relates to the field of drug particle pulverization technology, specifically to an integrated device for pulverizing and screening drug particles. Background Technology

[0002] A crusher is a machine that crushes large solid raw materials to the required size. Crushers are widely used in many sectors such as mining, metallurgy, building materials, highways, railways, water conservancy and chemical industries. Common crushing machines include jaw crushers, impact crushers, air-classifying crushers, hammer crushers, impact crushers, roller crushers and compound crushers.

[0003] A relevant reference is Chinese utility model patent CN219596901U, which discloses a granular drug pulverizer capable of screening. The pulverizer includes a housing. Motors are bolted to the top outer walls of both sides of the housing. Transmission grooves are formed on the inner sides of the housing near the motors. A turntable, located inside the transmission grooves, is mounted to the motor's output end via a coupling. Stabilizing grooves are formed on the inner walls of both sides of the transmission grooves. A stabilizing plate is slidably connected inside the stabilizing grooves. Springs are welded to the inner walls of both sides of the transmission grooves. A protrusion is bolted to the outer wall of the turntable on one side, and an auxiliary block is bolted to the top outer wall of the stabilizing plate. When the motor is started, it drives the protrusion via the turntable, which in turn drives the stabilizing plate. During the movement of the stabilizing plate, the springs drive the mounting base and filter screen, thus enabling material screening and facilitating material classification by the user.

[0004] The aforementioned granule drug pulverizer uses an internal motor to drive a pulverizing disc to pulverize the drug. Since the pulverizing disc is fixedly connected to the motor shaft, and the motor is fixed inside the housing, the distance between the pulverizing disc and the bottom of the container cannot be adjusted according to actual needs, thereby adjusting the size of the pulverized drug particles. At the same time, the discharge port after drug pulverization is located on the left side of the housing, and the aperture is small, so the pulverized drug particles cannot be discharged from the housing quickly. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an integrated device for pulverizing and screening drug particles, which solves the problems of inconvenient discharge of pulverized drugs and the inability to adjust the particle size.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated drug particle pulverizing and screening device includes a base, a housing movably mounted above the base, a movable plate inserted into one side of the housing, and a pulverizing and screening mechanism disposed above the housing.

[0007] A sieving assembly, located inside the housing, is used to sieve the pulverized drug particles.

[0008] The pulverizing assembly includes a top cover movably mounted on the top of the housing, a connecting block fixedly mounted inside the top cover, an electric push rod movably mounted below the connecting block, a transmission rod movably mounted at the lower end of the electric push rod, a guide post inserted through the center of the transmission rod, and a drive unit for pulverizing drug particles mounted below the transmission rod.

[0009] Preferably, a partition is fixedly installed inside the base, a positioning pin is inserted and installed on the top of the outer shell, columnar structures are provided at the four corners of the base, and the bottom of the outer shell is provided with an opening that fits into the columnar structure of the base, and the movable plate and the outer shell are slidably connected.

[0010] Preferably, the screening assembly includes a limiting post fixedly installed inside the housing, a screen mesh inserted through the outer side of the limiting post, a spring fixedly installed above the screen mesh, a motor fixedly installed below the screen mesh, and an eccentric wheel fixedly installed on the shaft of the motor.

[0011] Preferably, the mesh structure of the screen covers three-quarters of the total area of ​​the screen on one side, and an opening is provided on the left side. There are two screens, which are installed at equal intervals on the outside of the limiting post. The screen and the limiting post are connected in a sliding manner. The top spring of the screen above the limiting post is fixedly connected to the outer shell, and the top spring of the screen below the limiting post is fixedly connected to the bottom surface of the screen above the limiting post.

[0012] Preferably, the drive unit includes an end cover fixedly installed above the transmission rod, a drive motor fixedly installed at the bottom of the end cover, a protective shell fitted onto the outside of the drive motor, and a cutting tool fixedly installed on the outside of the drive motor's shaft.

[0013] Preferably, the top cover is installed on the top of the outer shell by a threaded structure, the top end of the electric push rod is rotatably connected to the connecting block, and the bottom end of the electric push rod is rotatably connected to the transmission rod, the transmission rod is slidably connected to the guide post, and the top end of the guide post is fixedly connected to the top surface of the inner cavity of the top cover.

[0014] Beneficial effects

[0015] This invention provides an integrated device for pulverizing and screening drug particles. Compared with the prior art, it has the following advantages:

[0016] (1) The integrated drug particle crushing and screening equipment has a movable plate installed on one side of the outer shell. The center of the outer shell has a pipe structure. When the movable plate is inserted into the outer shell, drug particles are put in. At this time, the movable plate can support the drug particles. After crushing, the positioning pin is removed and the movable plate is pulled out. The crushed drug particles will fall to the top of the screen mesh structure. Drug particles that can pass through the screen mesh will pass through the upper screen and move to the top of the lower screen mesh structure under the restriction of the inclined plate inside the outer shell. Materials that cannot pass through the screen mesh will move downward at the rectangular opening on one side of the screen, so that small-sized drug particles and large-sized drug particles enter the chambers on both sides of the base partition respectively. This method can make the crushed drug particles discharge quickly and complete the screening during the falling of the drug particles.

[0017] (2) The integrated drug particle crushing and screening equipment is equipped with electric push rods. The electric push rods are installed at both ends of the transmission rod and form a rotating connection between the transmission rods. The connecting block can limit the position of the top of the electric push rod and allow the electric push rod to rotate. The extension and retraction of the electric push rod drives the transmission rod to move up and down on the outside of the guide column to adjust the distance between the cutter and the top surface of the movable plate, thereby controlling the particle size of the crushed drug particles. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the screen installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the guide post installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the transmission rod installation structure of this utility model;

[0022] In the diagram: 1. Base; 11. Partition; 12. Outer shell; 13. Movable plate; 14. Positioning pin; 2. Crushing and screening mechanism; 21. Screening assembly; 211. Limiting post; 212. Screen; 213. Spring; 214. Motor; 215. Eccentric wheel; 22. Crushing assembly; 221. Top cover; 222. Connecting block; 223. Electric push rod; 224. Transmission rod; 225. Guide post; 226. Drive unit; 2261. End cover; 2262. Drive motor; 2263. Protective shell; 2264. Cutting tool. 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] Please see Figure 1-4 This utility model provides a technical solution: an integrated device for crushing and screening drug particles, including a base 1, a housing 12 movably mounted on the top of the base 1, a movable plate 13 inserted through one side of the housing 12, a partition 11 fixedly mounted inside the base 1, a positioning pin 14 inserted through the top of the housing 12, columnar structures provided at the four corners of the base 1, and openings provided at the bottom of the housing 12 that fit into the columnar structures of the base 1, with the movable plate 13 and the housing 12 forming a sliding connection.

[0025] Specifically, the base 1 can receive the crushed drug particles. The inner cavity of the base 1 is divided into two chambers by the partition 12 inside the base 1, which are used to store drug particles that can pass through the sieve 212 and drug particles that cannot pass through the sieve 212 respectively. The partition 11 can support the drug particles inside the pipe structure in the center of the outer shell 12. The positioning pin 14 can limit the relative position between the movable plate 13 and the outer shell 12.

[0026] A crushing and screening mechanism 2 is provided above the outer casing 12.

[0027] The sieving assembly 21, located inside the outer casing 12, is used to sieve the pulverized drug particles. The sieving assembly 21 includes a limiting post 211 fixedly installed inside the outer casing 12. A screen 212 is inserted and installed on the outer side of the limiting post 211. A spring 213 is fixedly installed above the screen 212. A motor 214 is fixedly installed below the screen 212. An eccentric wheel 215 is fixedly installed on the shaft of the motor 214. The mesh structure of the screen 212 covers three-quarters of the total area of ​​the screen 212 on one side. An opening is provided on the left side. There are two screens 212, which are installed equidistantly on the outer side of the limiting post 211. The screen 212 and the limiting post 211 are slidably connected. The top spring 213 of the screen 212 above the limiting post 211 is fixedly connected to the outer casing 12. The top spring 213 of the screen 212 below the limiting post 212 is fixedly connected to the bottom surface of the screen 212 above the limiting post 211.

[0028] Specifically, the limiting post 211 can restrict the movement direction of the screen 212, and the screen 212 can move up and down through the spring 213. When the motor 214 drives the eccentric wheel 215 to rotate, the screen 212 will vibrate up and down to facilitate the screening of drug particles.

[0029] The pulverizing assembly 22 includes a top cover 221 movably mounted on top of the housing 12. A connecting block 222 is fixedly mounted inside the top cover 221. An electric actuator 223 is movably mounted below the connecting block 222. A transmission rod 224 is movably mounted at the lower end of the electric actuator 223. A guide post 225 is inserted through the center of the transmission rod 224. A drive unit 226 for pulverizing drug particles is mounted below the transmission rod 224. The drive unit 226 includes an end cap 2261 fixedly mounted above the transmission rod 224. The bottom of the end cap 2261 is fixed. A drive motor 2262 is installed, and a protective shell 2263 is fitted onto the outside of the drive motor 2262. A cutter 2264 is fixedly installed on the outside of the shaft of the drive motor 2262. The top cover 221 is installed on the top of the outer shell 12 through a threaded structure. The top of the electric push rod 223 is rotatably connected to the connecting block 222, and the bottom of the electric push rod 223 is rotatably connected to the transmission rod 224. The transmission rod 224 is slidably connected to the guide post 225. The top of the guide post 225 is fixedly connected to the top surface of the inner cavity of the top cover 221.

[0030] Specifically, the top cover 221 can seal the top of the outer shell 11, the connecting block 222 can restrict the position of the top of the electric push rod 223 and allow the electric push rod 223 to rotate. The extension and retraction of the electric push rod 223 drives the transmission rod 224 to move up and down outside the guide post 225 to adjust the distance between the cutter 2264 and the top surface of the movable plate 13, thereby controlling the particle size of the crushed drug particles. The guide post 225 can restrict the movement direction of the transmission rod 224. The end cover 2261 and the protective shell 2263 can protect the drive motor 2262 and connect the drive motor 2262 to the transmission rods 224 on both sides. The drive motor 2262 can drive the cutter 2264 to rotate, so that the cutter 2264 crushes the drug particles during the rotation. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0031] During operation, the movable plate 13 is inserted into one side of the outer casing 12. A pipe structure is located in the center of the outer casing 12. When the movable plate 13 is inserted into the outer casing 12, drug granules are placed inside. At this time, the movable plate 13 provides support for the drug granules. After crushing, the positioning pin 14 is removed and the movable plate 13 is pulled out. The crushed drug granules will fall above the mesh structure of the screen 212. Drug granules that can pass through the mesh of the screen 212 will pass through the upper screen 212 and, under the constraint of the inclined plate inside the outer casing 12, move to the upper mesh structure of the lower screen 212. Material that cannot pass through the mesh of the screen 212 will pass through the rectangular opening on one side of the screen 212. The device moves downwards, allowing small and large drug particles to enter the chambers on both sides of the partition 11 of the base 1 respectively. This method enables the pulverized drug particles to be discharged quickly and sieved during the falling process. The electric push rod 223 is installed at both ends of the transmission rod 224 and forms a rotatable connection with the transmission rod 224. The connecting block 222 can restrict the position of the top of the electric push rod 223 and allow the electric push rod 223 to rotate. The extension and retraction of the electric push rod 223 drives the transmission rod 224 to move up and down outside the guide post 225 to adjust the distance between the cutter 2264 and the top surface of the movable plate 13, thereby controlling the particle size of the pulverized drug particles.

[0032] 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.

[0033] 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. An integrated device for pulverizing and screening drug particles, comprising a base (1), characterized in that: A housing (12) is movably mounted above the base (1), a movable plate (13) is inserted into one side of the housing (12), and a crushing and screening mechanism (2) is provided above the housing (12). A sieving assembly (21), located inside the outer casing (12), is used to sieve the pulverized drug particles. The pulverizing assembly (22) includes a top cover (221) movably mounted on the top of the housing (12). A connecting block (222) is fixedly mounted inside the top cover (221). An electric push rod (223) is movably mounted below the connecting block (222). A transmission rod (224) is movably mounted at the lower end of the electric push rod (223). A guide post (225) is inserted through the center of the transmission rod (224). A drive unit (226) for pulverizing drug particles is mounted below the transmission rod (224).

2. The integrated drug particle pulverizing and screening equipment according to claim 1, characterized in that: A partition (11) is fixedly installed inside the base (1), a positioning pin (14) is inserted and installed on the top of the outer shell (12), a columnar structure is provided at the four corners of the base (1), and an opening is provided at the bottom of the outer shell (12) to fit into the columnar structure of the base (1), and a sliding connection is formed between the movable plate (13) and the outer shell (12).

3. The integrated drug particle pulverizing and screening equipment according to claim 1, characterized in that: The screening assembly (21) includes a limiting post (211) fixedly installed inside the outer shell (12), a screen (212) is inserted and installed on the outside of the limiting post (211), a spring (213) is fixedly installed above the screen (212), a motor (214) is fixedly installed below the screen (212), and an eccentric wheel (215) is fixedly installed on the shaft of the motor (214).

4. The integrated drug particle pulverizing and screening equipment according to claim 3, characterized in that: The mesh structure of the screen (212) covers three-quarters of the total area of ​​the screen (212) on one side, and has an opening on the left side. There are two screens (212), and the screens (212) are installed at equal intervals on the outside of the limiting post (211). The screens (212) and the limiting post (211) are connected in a sliding manner. The top spring (213) of the screen (212) above the limiting post (211) is fixedly connected to the outer shell (12), and the top spring (213) of the screen (212) below the limiting post (212) is fixedly connected to the bottom surface of the screen (212).

5. The integrated drug particle pulverizing and screening equipment according to claim 1, characterized in that: The drive unit (226) includes an end cap (2261) fixedly installed above the transmission rod (224), a drive motor (2262) fixedly installed at the bottom of the end cap (2261), a protective shell (2263) fitted on the outside of the drive motor (2262), and a cutter (2264) fixedly installed on the outside of the shaft of the drive motor (2262).

6. The integrated drug particle pulverizing and screening equipment according to claim 1, characterized in that: The top cover (221) is installed on the top of the outer shell (12) by a threaded structure. The top of the electric push rod (223) is rotatably connected to the connecting block (222), and the bottom of the electric push rod (223) is rotatably connected to the transmission rod (224). The transmission rod (224) is slidably connected to the guide post (225). The top of the guide post (225) is fixedly connected to the top surface of the inner cavity of the top cover (221).