Hopper mixer for medical experiment

By introducing agitation components and the striking action of mixing blocks into the hopper mixer, the problem of insufficient oscillating mixing mechanism is solved, and the materials with large density differences, uneven particle size or poor flowability are fully mixed, thus improving the mixing uniformity.

CN223760879UActive Publication Date: 2026-01-06SHANGHAI KUNHENG PHARMA TECH CO LTD
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Patent Information

Application Number
CN202423231303.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2026-01-06
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

Existing pharmaceutical laboratory hopper mixers, when mixing materials with large differences in density, uneven particle size, or poor flowability, do not have sufficient swaying motion to ensure adequate flow and distribution of the materials, resulting in uneven mixing.

Method used

The design employs an agitation component, including a servo motor-driven rotating wheel and the striking action of the agitator blocks, combined with a 360-degree rotating mixing drum. Through the cooperation of the agitator column and the moving disc, the materials are fully dispersed and mixed.

Benefits of technology

It improves the uniformity of mixing, avoids material stratification, and ensures the full flow and distribution of light and heavy materials during the mixing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of medical experiments, and discloses a hopper mixer for medical experiments, which comprises a mounting rack and a mixing cylinder main body, the mixing cylinder main body is mounted at the side part of the mounting rack, a driving component is arranged at the side part of the mounting rack, a stirring column is arranged in the mixing cylinder main body, and a stirring component is connected to the side part of the stirring column. The driving assembly and the mixing cylinder body are used in cooperation, through arrangement of the stirring assembly, materials are placed in the mixing cylinder body, a servo motor is started, the servo motor enables a first rolling wheel and a second rolling wheel on the side portions of a first rotating shaft and a second rotating shaft to rotate, and meanwhile the mixing cylinder rotates by 360 degrees; when the mixing barrel rotates, the movable disc slides on the outer side of the stirring column, the piston block slides in the piston groove in the side portion of the movable disc, the first stirring block and the second stirring block strike the materials, light materials and heavy materials can be better mixed under the combined action of striking and rotating, and the layering phenomenon is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical experimental technology, specifically a pharmaceutical experimental hopper mixer. Background Technology

[0002] A pharmaceutical laboratory hopper mixer is a specialized piece of equipment used in the experimental stages of the pharmaceutical industry. It is primarily used for mixing powdered or granular pharmaceutical raw materials or other experimental materials. Its design meets the stringent standards of the pharmaceutical industry, ensuring hygiene, safety, and precision during the mixing process. A hopper mixer typically consists of a conical or cylindrical hopper and an internal stirring device. The stirring device can be a propeller, stirring rod, or high-speed rotating mixing blades, capable of uniformly mixing materials. The hopper's shape helps reduce dead zones, ensuring no material residue remains during mixing. Due to the special nature of the pharmaceutical industry, hopper mixers are usually made of stainless steel or other corrosion-resistant materials, with smooth surfaces that are easy to clean and sterilize, preventing cross-contamination. The machine's design also considers sealing to prevent dust leakage and ensure a clean operating environment. Pharmaceutical laboratory hopper mixers achieve high-precision mixing, ensuring uniform distribution of different pharmaceutical raw materials. This is crucial for drug stability and efficacy, especially in small-batch experimental stages. This equipment is widely used in drug development, formulation experiments, and quality control, helping researchers quickly obtain uniformly mixed experimental samples and shortening the research and development cycle.

[0003] Currently, existing pharmaceutical laboratory hopper mixers are generally oscillating mixers. The oscillating mixing mechanism relies on the oscillation of the hopper. However, for certain special materials (such as materials with large density differences, uneven particle size, or poor flowability), the oscillating motion may not be sufficient to make the material flow and distribute fully, resulting in uneven mixing. Therefore, it does not meet the existing needs. To address this, we propose a pharmaceutical laboratory hopper mixer. Utility Model Content

[0004] This invention provides a pharmaceutical laboratory hopper mixer with a striking action of a stirring block that promotes more thorough dispersion of material particles within the mixing drum. This solves the problem mentioned in the background art that existing pharmaceutical laboratory hopper mixers generally use a swinging mixing mechanism. The swinging mixing mechanism relies on the swinging of the hopper, but for certain special materials (such as materials with large density differences, uneven particle size, or poor flowability), the swinging motion may not be sufficient to ensure sufficient flow and distribution of the material, resulting in uneven mixing.

[0005] This utility model provides the following technical solution: a pharmaceutical experimental hopper mixer, including a mounting frame and a mixing cylinder body, the mixing cylinder body is mounted on the side of the mounting frame, a drive component is provided on the side of the mounting frame, an agitator is provided inside the mixing cylinder body, an agitator is connected to the side of the agitator, and the drive component is used in conjunction with the mixing cylinder body.

[0006] As an optional solution for a pharmaceutical experimental hopper mixer according to the present invention, a servo motor is installed on the side of the mounting frame, and the drive assembly includes a first rotating wheel and a second rotating wheel, the first rotating wheel and the second rotating wheel being respectively disposed on the side of the mounting frame.

[0007] As an optional solution for a pharmaceutical experimental hopper mixer according to the present invention, wherein: the side of the mounting frame is respectively connected to a first rotating shaft and a second rotating shaft, the first rotating shaft is inserted into the middle of the first rotating wheel, the second rotating shaft is inserted into the middle of the second rotating wheel, the output shaft of the servo motor is fitted with a first conveyor belt on the outside of the first rotating wheel, and the second rotating wheel is fitted with a second conveyor belt on the outside of the first rotating shaft.

[0008] As an optional solution for a pharmaceutical experimental hopper mixer according to the present invention, the mounting frame is connected to a locking ring, and the side of the mixing cylinder body is connected to a first support shaft and a second support shaft. The first support shaft is connected to the side of the locking ring, and the second support shaft is connected to the side of the second rotating shaft.

[0009] As an optional solution for a pharmaceutical experimental hopper mixer according to the present invention, the stirring component includes a moving disc and a first stirring block, the moving disc being sleeved on the outside of the device, and the first stirring block being connected to the side of the moving disc.

[0010] As an optional solution for a pharmaceutical experimental hopper mixer according to the present invention, there are two movable discs, and piston grooves are respectively opened on the side of the two movable discs, and through grooves are opened on the side of the piston grooves.

[0011] As an optional solution for a pharmaceutical experimental hopper mixer according to the present invention, wherein: a first slot is provided on the side of the through groove, and a first ball is connected inside the first slot; a second slot is provided on the side of the stirring column, and a second ball is connected inside the second slot; the first ball and the second ball slide in cooperation.

[0012] As an optional solution for a pharmaceutical experimental hopper mixer according to the present invention, wherein: piston blocks are connected to both ends of the stirring column, the piston blocks are slidably engaged with the piston groove, and a second stirring block is connected to the bottom of the moving disk.

[0013] This utility model has the following beneficial effects:

[0014] 1. This pharmaceutical laboratory hopper mixer, through the setting of the stirring component, places the material inside the mixing drum body. Activating the servo motor causes the first rotating shaft and the first and second rolling wheels on the sides of the second rotating shaft to rotate, simultaneously causing the mixing drum to rotate 360 ​​degrees. While the mixing drum rotates, the moving disc slides outside the stirring column, and the piston block slides with the piston groove on the side of the moving disc. The first and second stirring blocks strike the material. The combined action of striking and rotating allows light and heavy materials to mix better, avoiding stratification. At the same time, the striking action of the stirring blocks promotes more thorough dispersion of material particles within the mixing drum, thereby improving mixing uniformity. This solves the problem that existing pharmaceutical laboratory hopper mixers generally use oscillating mixing, which relies on the oscillation of the hopper. However, for certain special materials (such as materials with large density differences, uneven particle size, or poor flowability), the oscillation motion may be insufficient to ensure sufficient flow and distribution of the material, leading to uneven mixing.

[0015] 2. This pharmaceutical experimental hopper mixer, through the setting of the first ball bearing, and the cooperation of the first ball bearing and the second ball bearing, when the moving disc slides on the outside of the stirring column, the second ball bearing inside the piston groove cooperates with the first ball bearing on the side of the stirring column. The cooperation of the first ball bearing and the second ball bearing can ensure the smoothness and efficiency of the mixing process and avoid the moving disc from getting stuck. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the stirring column structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the movable disk structure of this utility model.

[0020] In the diagram: 110, mounting bracket; 111, servo motor; 112, first rotating shaft; 113, second rotating shaft; 114, first conveyor belt; 115, engaging ring; 120, mixing cylinder body; 121, first support shaft; 122, second support shaft; 130, drive assembly; 131, first rotating wheel; 132, second rotating wheel; 140, stirring column; 150, stirring assembly; 151, moving disc; 152, first stirring block; 153, piston groove; 154, through groove; 155, first slot; 160, first ball bearing; 161, second slot; 162, second ball bearing; 163, piston block; 164, second stirring block; 600, second conveyor belt. Detailed Implementation

[0021] 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.

[0022] Example 1: This example aims to address the problem that existing pharmaceutical laboratory hopper mixers typically use a oscillating mixing mechanism. While this oscillating mixing relies on the oscillation of the hopper, for certain materials such as those with significant density differences, uneven particle size, or poor flowability, the oscillating motion may be insufficient to ensure adequate flow and distribution, leading to uneven mixing. Please refer to [link to relevant documentation]. Figure 1-4 A pharmaceutical experimental hopper mixer includes a mounting frame 110 and a mixing cylinder body 120. The mixing cylinder body 120 is mounted on the side of the mounting frame 110. A drive assembly 130 is provided on the side of the mounting frame 110. An agitating column 140 is provided inside the mixing cylinder body 120. An agitating assembly 150 is connected to the side of the agitating column 140. The drive assembly 130 is used in conjunction with the mixing cylinder body 120.

[0023] A servo motor 111 is mounted on the side of the mounting bracket 110. The drive assembly 130 includes a first rotating wheel 131 and a second rotating wheel 132, which are respectively disposed on the side of the mounting bracket 110.

[0024] The mounting bracket 110 has a first rotating shaft 112 and a second rotating shaft 113 connected to its side. The first rotating shaft 112 is inserted into the middle of the first rotating wheel 131, and the second rotating shaft 113 is inserted into the middle of the second rotating wheel 132. The output shaft of the servo motor 111 and the outer side of the first rotating wheel 131 are fitted with a first conveyor belt 114, and the second rotating wheel 132 and the outer side of the first rotating shaft 112 are fitted with a second conveyor belt 600.

[0025] Mounting bracket 110 is connected to locking ring 115, and mixing cylinder body 120 is connected to a first support shaft 121 and a second support shaft 122 on the side. The first support shaft 121 is connected to the side of locking ring 115, and the second support shaft 122 is connected to the side of second rotating shaft 113.

[0026] The stirring assembly 150 includes a movable disk 151 and a first stirring block 152. The movable disk 151 is sleeved on the outside of the stirring column 140, and the first stirring block 152 is connected to the side of the movable disk 151.

[0027] There are two movable disks 151. The two movable disks 151 are respectively provided with piston grooves 153 on their sides, and through grooves 154 are provided on the sides of the piston grooves 153.

[0028] In this embodiment: by setting the stirring component 150, the material is placed inside the mixing drum body 120, and the servo motor 111 is started. The servo motor 111 causes the first rotating shaft 112 and the first rotating wheel 131 and the second rotating wheel 132 on the side of the second rotating shaft 113 to rotate, and at the same time, the mixing drum rotates 360 degrees. While the mixing drum rotates, the moving disk 151 slides on the outside of the stirring column 140, and the piston block 163 slides with the piston groove 153 on the side of the moving disk 151. The first stirring block 152 and the second stirring block 164 strike the material. The light material and the heavy material can be better mixed under the combined action of striking and rotating, avoiding the phenomenon of stratification. Meanwhile, the striking action of the first stirring block 152 and the second stirring block 164 can promote the more complete dispersion of material particles in the mixing drum, thereby improving the mixing uniformity. This solves the problem that existing pharmaceutical experimental hopper mixers generally use oscillating mixing. The oscillating mixing mechanism relies on the oscillation of the hopper, but for some special materials such as materials with large density differences, uneven particle size, or poor flowability, the oscillating motion may not be sufficient to make the material flow and distribute fully, resulting in uneven mixing.

[0029] Example 2 aims to further resolve the issue of the sliding engagement of the movable disk 151. This example is an improvement upon Example 1. For details, please refer to [link / reference]. Figure 1-4 The through groove 154 has a first slot 155 on its side, and a first ball bearing 160 is connected inside the first slot 155. The stirring column 140 has a second slot 161 on its side, and a second ball bearing 162 is connected inside the second slot 161. The first ball bearing 160 and the second ball bearing 162 are in sliding engagement. Piston blocks 163 are connected to both ends of the stirring column 140, and the piston blocks 163 are in sliding engagement with the piston groove 153. A second stirring block 164 is connected to the bottom of the moving disk 151.

[0030] In this embodiment: by setting the first ball 160, the first ball 160 cooperates with the second ball 162. When the moving disk 151 slides on the outside of the stirring column 140, the second ball 162 inside the piston groove 153 cooperates with the first ball 160 on the side of the stirring column 140. The cooperation of the first ball 160 and the second ball 162 can ensure the smoothness and efficiency of the mixing process and avoid the moving disk 151 from getting stuck.

[0031] 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.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hopper mixer for pharmaceutical experiments, comprising a mounting frame (110) and a mixing cylinder main body (120) installed at a side of the mounting frame (110), characterized in that: The mounting frame (110) is provided with a driving assembly (130), the mixing cylinder body (120) is internally provided with an agitating column (140), the agitating column (140) is connected with an agitating assembly (150), and the driving assembly (130) is used in cooperation with the mixing cylinder body (120).

2. The hopper mixer of claim 1, wherein: The mounting frame (110) is provided with a servo motor (111), the driving assembly (130) comprises a first rotating wheel (131) and a second rotating wheel (132), and the first rotating wheel (131) and the second rotating wheel (132) are arranged at the sides of the mounting frame (110) respectively.

3. The hopper mixer of claim 2, wherein: The mounting frame (110) is provided with a servo motor (111), the driving assembly (130) comprises a first rotating wheel (131) and a second rotating wheel (132), and the first rotating wheel (131) and the second rotating wheel (132) are arranged at the sides of the mounting frame (110) respectively.

4. The hopper mixer of claim 3, wherein: The mounting frame (110) is provided with a servo motor (111), the driving assembly (130) comprises a first rotating wheel (131) and a second rotating wheel (132), and the first rotating wheel (131) and the second rotating wheel (132) are arranged at the sides of the mounting frame (110) respectively.

5. The hopper mixer of claim 1, wherein: The mounting frame (110) is provided with a servo motor (111), the driving assembly (130) comprises a first rotating wheel (131) and a second rotating wheel (132), and the first rotating wheel (131) and the second rotating wheel (132) are arranged at the sides of the mounting frame (110) respectively.

6. The hopper mixer of claim 5, wherein: The agitating assembly (150) comprises a moving disc (151) and a first stirring block (152), the moving disc (151) is sleeved outside the agitating column (140), and the first stirring block (152) is connected to the side of the moving disc (151).

7. A hopper mixer for pharmaceutical experiments according to claim 6, characterized in that: The moving disc (151) is provided with two, two moving discs (151) are provided with a piston groove (153) at the sides, and the piston groove (153) is provided with a through groove (154) at the side.

8. The hopper mixer of claim 7, wherein: The through groove (154) is provided with a first notch (155) at the side, the first notch (155) is internally connected with a first ball (160), the agitating column (140) is provided with a second notch (161) at the side, the second notch (161) is internally connected with a second ball (162), and the first ball (160) and the second ball (162) are in sliding fit. The agitating column (140) is connected with a piston block (163) at both ends, the piston block (163) is in sliding fit with the piston groove (153), and the moving disc (151) is connected with a second stirring block (164) at the bottom.