An antiseptic gel dispensing device
By introducing a ball spline mechanism and a servo motor into the planetary mixer, a three-dimensional turbulent flow field is formed, which solves the problem of poor mixing effect of existing planetary mixers and achieves efficient mixing and stable composition of antibacterial gel.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MAOJI BIOTECHNOLOGY (SHANDONG) CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-21
AI Technical Summary
Existing planetary mixers have difficulty further improving the mixing effect when configuring antibacterial gels, resulting in uneven material mixing and unstable component activity.
By adding a ball spline mechanism to the existing planetary mixer and combining it with a servo motor, the rotation and lifting of the ball spline mechanism drives the impeller to rotate and lift, forming a three-dimensional turbulent flow field. This enables the composite mixing of axial, radial, and tangential flows, thereby improving mixing efficiency.
The formation of a three-dimensional turbulent field causes the material to be repeatedly sheared and folded between different velocity regions, which significantly improves the mixing efficiency and the uniformity of material mixing, ensuring the stability of component activity.
Smart Images

Figure CN224524489U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of disinfectant production equipment, and in particular relates to an antibacterial gel preparation device. Background Technology
[0002] Antibacterial gels work by using antibacterial components that act on the cellular structure or metabolic processes of bacteria, interfering with their growth and reproduction, thereby inhibiting bacterial numbers or killing bacteria. Different antibacterial components may have different mechanisms of action; for example, some components can disrupt the integrity of the bacterial cell membrane, causing leakage of bacterial contents; others may inhibit bacterial protein synthesis or nucleic acid replication.
[0003] Compared to commonly available antibacterial liquids, antibacterial gels offer key advantages in terms of longer-lasting effects, gentleness, moisturizing properties, and precise targeting. Containing gel matrices such as carbomer and hyaluronic acid, these gels form a thin film on the skin / mucous membrane surface after application, encapsulating antibacterial ingredients (such as chlorhexidine and silver ions) and slowly releasing them to the target site. Simultaneously, this type of gel matrix reduces the direct irritation of the antibacterial ingredients, making it particularly suitable for delicate areas such as mucous membranes and wounds. Therefore, antibacterial gels are currently more popular in the market than antibacterial liquids.
[0004] Antibacterial gels are more popular in the market than antibacterial liquids due to their gel matrix. However, the gel matrix also increases the difficulty of their production. During gel preparation, high-shear-force stirring equipment is crucial to ensure uniform mixing, sufficient matrix swelling, and stable component activity. Therefore, existing stirring equipment for gel preparation mostly consists of planetary mixers or vacuum emulsifying mixers. In planetary mixers, the impellers move in a planetary trajectory (rotation + revolution), working in conjunction with a wall scraper to achieve stirring inside the machine. While this structure meets the requirements for gel production, improving the stirring effect and thus reducing the amount of stirring required remains a key area for improvement in gel production. Utility Model Content
[0005] This invention addresses the technical problem of improving the mixing effect of existing planetary mixers by proposing a reasonably designed, simple, and easy-to-process antibacterial gel preparation device that can be improved upon based on existing technology to achieve enhanced mixing effect.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides an antibacterial gel preparation device, including a stirring drum and a stirring mechanism disposed on the stirring drum. The stirring mechanism includes a stirring motor disposed at the top of the stirring drum and a rotating seat disposed inside the stirring drum. The stirring motor is disposed on both sides of the center of the stirring drum. A planetary stirring rod is disposed on the rotating seat and rotates on the rotating seat. A wall scraper is disposed on the outer side of the rotating seat. A nut seat is also disposed on the stirring drum. A ball spline screw nut pair is fitted inside the nut seat. The ball spline screw nut pair is connected to a synchronous pulley. A ball spline screw is fitted inside the ball spline screw nut pair. The ball spline screw passes through the synchronous pulley and extends into the stirring drum. A stirring impeller is connected to the end of the ball spline screw that extends into the stirring drum. A servo motor is also disposed at the top of the stirring drum. The servo motor is connected to the synchronous pulley by a synchronous belt.
[0007] Preferably, the end of the planetary stirring rod is provided with stirring blades, and the stirring impeller is located above the stirring blades.
[0008] Preferably, the stirring impeller includes an impeller seat arranged in a bullet shape and blades distributed in a ring on the impeller seat.
[0009] Preferably, the impeller seat has at least 5 blades.
[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0011] This invention provides an antibacterial gel preparation device. By adding a ball spline mechanism to the existing planetary mixer, the rotating and lifting characteristics of the ball spline mechanism drive the stirring impeller to rotate and lift. At the same time, in conjunction with a high-speed rotating servo motor, the stirring speed in the entire mixing drum is formed in three layers with successively decreasing stirring speeds. This further generates axial flow, radial flow and tangential flow, forming a three-dimensional turbulent field. This causes the material to be repeatedly sheared and folded between different speed ranges, thereby improving the stirring efficiency. Attached Figure Description
[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the antibacterial gel preparation device provided in Example 1;
[0014] Figure 2 This is a schematic diagram of the internal structure of the stirring tank provided in Example 1;
[0015] Figure 3 This is a front view of the interior of the stirring tank provided in Example 1;
[0016] In the above figures, 1. Mixing drum; 2. Mixing mechanism; 21. Mixing motor; 22. Rotary seat; 23. Planetary mixing rod; 24. Mixing blade; 25. Scraper; 3. Nut seat; 31. Ball spline screw nut pair; 32. Synchronous pulley; 33. Ball spline screw; 4. Servo motor; 41. Synchronous belt; 5. Mixing impeller; 51. Impeller seat; 52. Blade. Detailed Implementation
[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0019] Example 1, as Figures 1-3 As shown, this embodiment aims to improve the mixing efficiency of the planetary mixer required for the production of existing antibacterial gels. Considering that existing planetary mixers utilize speed differences to create a "spiral tumbling" of materials between the barrel wall and the center, generating axial flow (up-down circulation), radial flow (diffusion around the perimeter), and tangential flow (circular motion), a three-dimensional turbulent field is formed. However, the mixing in the middle relies solely on the rotation of the planetary impeller, resulting in a uniform rotation speed across most of the area. Therefore, a higher-speed rotating mechanism can be added to the middle section to improve the mixing effect.
[0020] Therefore, the antibacterial gel preparation device provided in this embodiment includes a mixing drum 1 and a stirring mechanism 2 disposed on the mixing drum 1. The stirring mechanism 2 includes a stirring motor 21 disposed on the top of the mixing drum 1 and a rotating seat 22 disposed inside the mixing drum 1. There are two stirring motors 21, which are disposed on both sides of the center of the mixing drum 1. Planetary stirring rods 23 are disposed on the rotating seat 22. Each planetary stirring shaft is provided with three inclined planetary stirring rods 23. Stirring blades 24 are disposed at the ends of the planetary stirring rods 23. The planetary stirring rods 23 are rotatably disposed on the rotating seat 22. A wall scraper 25 is disposed on the outside of the rotating seat 22. In this way, the stirring motor 21 drives the rotating seat 22 to rotate. Since the gear at the end of the planetary stirring shaft meshes with the gear that is stationary at the center of the mixing drum 1, the planetary stirring shaft is rotated. This constitutes the structure of the commonly used planetary mixer. The above structure is a commonly used structure. Therefore, it will not be described in detail in this embodiment.
[0021] To achieve the rotation of the center of the mixing drum 1, in this embodiment, a nut seat 3 is also provided on the mixing drum 1. A ball spline screw nut pair 31 is fitted inside the nut seat 3. The ball spline screw nut pair 31 is connected to a synchronous pulley 32. A ball spline screw 33 is fitted inside the ball spline screw nut pair 31. The ball spline screw 33 passes through the synchronous pulley 32 and extends into the mixing drum 1. A servo motor 4 is also provided at the top of the mixing drum 1. The servo motor 4 is connected to the synchronous pulley 32 by a synchronous belt 41. The above structure constitutes the ball spline drive mechanism. Through the action of the servo motor 4, the ball spline screw 33 is rotated and lifted. In order to achieve stirring, in this embodiment, a stirring impeller 5 is connected to the end of the ball spline screw 33 that extends into the stirring drum 1. In this way, the ball spline screw 33 drives the stirring impeller 5 to perform high-speed rotation and lifting motion, thereby enabling it to continuously generate axial flow (up and down circulation), radial flow (spreading around), and tangential flow (circular motion). Together with the planetary stirring rod 23 and the wall scraper 25 around it, they form three layers of successively decreasing stirring speeds, which further generate axial flow, radial flow, and tangential flow, forming a three-dimensional turbulent field. This causes the material to be repeatedly sheared and folded in more speed ranges, thereby achieving the purpose of improving stirring efficiency.
[0022] Considering that the stirring blades 24 at the end of the planetary stirring rod 23 mainly rotate at the bottom of the stirring drum 1, the stirring impeller 5 is positioned above the stirring blades 24 to avoid interference. This allows the high-speed rotating stirring impeller 5 to drive the material below to rotate, ensuring a height difference in the central area. This structure is also advantageous because the stirring drum 1 provided in this embodiment is generally flat and shallow.
[0023] To further improve the mixing effect, in this embodiment, the mixing impeller 5 includes a bullet-shaped impeller seat 51 and blades 52 arranged in a ring on the impeller seat 51. It should be noted that the impeller seat 51 has at least five blades 52. In this embodiment, the impeller seat 51 has six blades 52. The multi-bladed structure can generate strong radial flow and shear force during high-speed rotation, and the fluid forms turbulence around the blades 52, thereby facilitating improved mixing.
[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. An antibacterial gel preparation apparatus, comprising a mixing drum and a stirring mechanism disposed on the mixing drum, the stirring mechanism comprising a stirring motor disposed at the top of the mixing drum and a rotating seat disposed inside the mixing drum, the stirring motor being disposed on both sides of the center of the mixing drum, planetary stirring rods being disposed on the rotating seat and rotatably disposed on the rotating seat, and a wall scraper being disposed on the outer side of the rotating seat, characterized in that, The mixing drum is also equipped with a nut seat, inside which a ball spline screw nut pair is fitted. The ball spline screw nut pair is connected to a synchronous pulley. The ball spline screw nut pair is fitted with a ball spline screw, which passes through the synchronous pulley and extends into the mixing drum. The end of the ball spline screw extending into the mixing drum is connected to a stirring impeller. A servo motor is also installed at the top of the mixing drum, and the servo motor is connected to the synchronous pulley by a synchronous belt.
2. The antibacterial gel preparation device according to claim 1, characterized in that, The planetary stirring rod is provided with stirring blades at its end, and the stirring impeller is located above the stirring blades.
3. The antibacterial gel preparation device according to claim 2, characterized in that, The stirring impeller includes an impeller seat arranged in a bullet shape and blades distributed in a ring on the impeller seat.
4. The antibacterial gel preparation device according to claim 3, characterized in that, The impeller seat has at least 5 blades.