Multi-channel microcapsule preparation device

Abstract

The utility model relates to the technical field of preparation, in particular to a multi-channel microcapsule preparation device which comprises a core material liquid supply pool used for loading a core material solution of microcapsules. The conveying mechanism is in butt joint with the core material liquid supply pool; the liquid pumping mechanism is mounted on the conveying mechanism and used for pumping the core material solution in the core material liquid supply pool into the conveying mechanism; and the microcapsule forming mechanism is in butt joint with the conveying mechanism and is used for embedding the core material. According to the device, multi-channel and high-flux microcapsule preparation can be realized, meanwhile, the stability of liquid drops can be improved, and the prepared microcapsules have narrow particle size distribution. In addition, the device is provided with a heating and stirring module and a high-voltage static module, so that the preparation of microcapsules with different principles can be met.

Description

Technical Field

[0001] The present application relates to the field of preparation technology, and in particular to a multi-channel microcapsule preparation device. Background Art

[0002] Microcapsules are micro-containers or packaging with polymer shells, which contain core materials. Microcapsule technology has been well developed in various fields including medicine, pesticide science, perfumery, coatings, food science and cosmetics preparation. The core material can well preserve its characteristics after microencapsulation, such as its color, shape, heat resistance, solubility, volume, quality, etc. Microcapsule technology is also widely used in food. It can be used for sweeteners, acidulants, flavors and fragrances, preservatives, sweeteners, leavening agents, antioxidants, powdered oils and fats, microencapsulated microorganisms, etc. Some unstable ingredients can use this technology to increase their stability.

[0003] The methods for preparing microcapsules are usually divided into physical methods, chemical methods and physicochemical methods. Commonly used physical methods include spray drying and solvent evaporation, chemical methods include in-situ polymerization, interfacial polymerization, suspension polymerization and emulsion polymerization, and physicochemical methods include complex coacervation, melt dispersion condensation and sol-gel method.

[0004] Prior art: CN108272119A describes a device for preparing microcapsules by temperature-controlled solidification, which can place double-layer embedding in the same coating reaction chamber, and control the fat temperature to first liquefy and then solidify the fat, thereby preparing single-layer microcapsules, and then control the shell thickness of the second layer of coating by controlling the atomization pressure and the solubility of the coating liquid to obtain double-layer microcapsules. However, the above method still has the problem of low stability of the prepared microcapsules. Utility Model Content

[0005] The embodiment of the present application provides a multi-channel microcapsule preparation device, which can improve the stability of the prepared microcapsules.

[0006] The present application embodiment provides a multi-channel microcapsule preparation device, comprising:

[0007] Core material supply tank, used to load the core material solution of microcapsules,

[0008] The conveying mechanism is connected to the core material supply tank.

[0009] The pumping mechanism is installed on the conveying mechanism and is used to pump the core material solution in the core material supply tank into the conveying mechanism.

[0010] The microcapsule forming mechanism is connected with the conveying mechanism and is used for embedding the core material.

[0011] According to the aforementioned embodiment of the first aspect of the present application, the conveying mechanism includes a main liquid suction pipe and a liquid discharge pipe group,

[0012] The main liquid pipette is used to extract the core material solution. One end of the main liquid pipette is located in the core material liquid supply pool and the other end is connected to the liquid outlet pipe set. The liquid extraction mechanism is installed on the main liquid pipette.

[0013] The liquid outlet pipe group is connected to the microcapsule forming mechanism.

[0014] According to the aforementioned embodiment of the first aspect of the present application, the liquid outlet tube assembly includes a liquid outlet needle port, a thin liquid pipette and a conductive disk.

[0015] There are multiple liquid outlet needle ports, which correspond to multiple fine liquid pipettes one by one. The liquid outlet needle ports are located above the microcapsule forming mechanism, and the liquid outlet needle ports are detachably connected to the fine liquid pipettes.

[0016] Multiple fine pipettes are connected to the main pipette, and each fine pipette is connected to the outlet needle.

[0017] The conductive disc is used to install the liquid outlet needle port.

[0018] According to any of the aforementioned embodiments of the first aspect of the present application, the liquid pumping mechanism includes an upper extrusion member, a lower extrusion member, a push assembly and a drive assembly.

[0019] The upper extrusion piece and the lower extrusion piece have the same structure and are both installed on the main liquid suction pipe. The upper extrusion piece and the lower extrusion piece are both facing the core material liquid supply pool.

[0020] The push assembly is connected to the main liquid suction pipe and is located between the upper extrusion member and the lower extrusion member.

[0021] The driving component is transmission-connected with the pushing component.

[0022] According to any of the aforementioned embodiments of the first aspect of the present application, the upper extrusion member includes an extrusion shell, a blocking ball and an extrusion spring.

[0023] Both ends of the extrusion shell are connected to the main liquid suction pipe. The interior of the extrusion shell is hollow and the inner diameter of the lower end is smaller than the inner diameter of the upper end.

[0024] The sealing ball is located in the extrusion shell and its diameter is larger than the inner diameter of the lower end of the extrusion shell.

[0025] The extrusion spring is located on the top of the blocking ball and has a diameter larger than the inner diameter of the main suction tube.

[0026] According to any of the aforementioned embodiments of the first aspect of the present application, the push assembly includes a push housing, a push spring and a push block.

[0027] The push shell is hollow inside and one end is connected to the main liquid suction pipe.

[0028] The push spring is located in the push housing.

[0029] The push block is movably installed at the other end of the push housing, the push block is connected with the push spring, and the push block is transmission-connected with the driving assembly.

[0030] According to any of the aforementioned embodiments of the first aspect of the present application, the driving assembly includes a driving member, a limiting groove, a driving rod, a rotating wheel, a driving motor and a stabilizing member.

[0031] The driving member is connected to the push assembly.

[0032] The limiting groove is provided on the driving member and is used to accommodate the driving rod.

[0033] The driving rod is slidably arranged in the limiting groove and fixed on the rotating wheel.

[0034] The rotating wheel is coaxially connected to the driving motor.

[0035] There are multiple stabilizing parts, and the multiple stabilizing parts are all sleeved on the driving part and fixed to the outside. The microcapsule forming mechanism includes a solution pool, a rotating drum, a rotating base, a driving gear, a driving gear and a rotating motor.

[0036] The solution tank is used to load shell material solution or cleaning solution.

[0037] The rotating drum can be detachably installed in the solution pool, and a plurality of through holes are opened on the rotating drum.

[0038] The top of the rotating base is connected to the bottom of the rotating drum to drive the rotating drum to rotate.

[0039] The driving gear meshes with the driven gear.

[0040] The driving gear is coaxially connected to the rotating base to drive the rotating base to rotate.

[0041] The rotating motor is coaxially connected with the driving gear.

[0042] According to any of the aforementioned embodiments of the first aspect of the present application, the driving assembly further includes two stabilizing wheels respectively meshing with two sides of the rotating wheel.

[0043] According to any of the aforementioned embodiments of the first aspect of the present application, the microcapsule forming mechanism includes a solution pool, a rotating drum, a rotating base, a driving gear, a driving gear and a rotating motor.

[0044] The solution tank is used to load shell material solution or cleaning solution.

[0045] The rotating drum can be detachably installed in the solution pool, and a plurality of through holes are opened on the rotating drum.

[0046] The top of the rotating base is connected to the bottom of the rotating drum to drive the rotating drum to rotate.

[0047] The driving gear meshes with the driven gear.

[0048] The driving gear is coaxially connected to the rotating base to drive the rotating base to rotate.

[0049] The rotating motor is coaxially connected with the driving gear.

[0050] According to any of the aforementioned embodiments of the first aspect of the present application, it further includes a heating mechanism,

[0051] The heating mechanism includes a heating tank, a liquid inlet, a liquid outlet and a partition plate.

[0052] The heating tank is sleeved on the conveying mechanism to heat the core material solution in the conveying mechanism.

[0053] The liquid inlet is located at the bottom of the heating tank near the core material liquid supply pool and is used to pass hot water.

[0054] The liquid outlet is located at the top of the heating tank, away from the core material liquid supply pool.

[0055] There are multiple partition plates, which are evenly distributed in the heating tank. One end of each partition plate is fixed to the inner wall of the heating tank and the other end forms a liquid passage with the inner wall of the heating tank. The liquid passages of two adjacent partition plates are in opposite positions, and each partition plate is provided with multiple through holes.

[0056] The embodiment of the present application loads the core material solution into a core material liquid supply pool, extracts the core material solution in the core material liquid supply pool through a pumping mechanism, extracts the core material solution through a conveying mechanism and drops it into a microcapsule forming mechanism, waits for the core material solution and the packaging material solution to undergo a polymerization reaction to form a gel, and continuously stirs the microcapsule forming mechanism during the reaction, so that the obtained microcapsule particles are small and the encapsulation effect is good, thereby improving the stability of the microcapsules. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 This is one of the structural schematic diagrams of a multi-channel microcapsule preparation device according to one embodiment of the present application;

[0058] Figure 2 It is a partial enlarged view of part A of a multi-channel microcapsule preparation device according to an embodiment of the present application;

[0059] Figure 3 This is a schematic structural diagram of a conveying mechanism of a multi-channel microcapsule preparation device according to an embodiment of the present application;

[0060] Figure 4 A schematic diagram of the structure of a liquid extraction mechanism of a multi-channel microcapsule preparation device according to an embodiment of the present application;

[0061] Figure 5A partial side view of a multi-channel microcapsule preparation device according to an embodiment of the present application;

[0062] Figure 6 This is a schematic structural diagram of a microcapsule forming mechanism of a multi-channel microcapsule preparation device according to an embodiment of the present application.

[0063] Label: 100-core material liquid supply tank;

[0064] 200-transport mechanism; 210-main liquid pipette; 220-liquid outlet pipette group; 221-liquid outlet needle port; 222-fine liquid pipette; 223-conductive disk

[0065] 300-pumping mechanism; 310-upper extrusion member; 311-extrusion shell; 312-blocking ball; 313-extrusion spring; 320-lower extrusion member; 330-sliding assembly; 331-sliding shell; 332-sliding spring; 333-sliding block; 340-driving assembly; 341-driving member; 342-limiting groove; 343-driving rod; 344-rotating wheel; 345-driving motor; 346-stabilizing member; 347-stabilizing wheel;

[0066] 400-microcapsule forming mechanism; 410-solution pool; 420-rotating drum; 430-rotating base; 440-driving gear; 450-driving gear; 460-rotating motor; 470-heating tube;

[0067] 500 - heating mechanism; 510 - heating tank; 520 - liquid inlet; 530 - liquid outlet; 540 - partition plate; 550 - liquid passage. DETAILED DESCRIPTION

[0068] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0069] The embodiment of the present application provides a multi-channel microcapsule preparation device for preparing microcapsules with high stability. The embodiment of the present application includes a core material liquid supply pool 100, a conveying mechanism 200, a liquid extraction mechanism 300 and a microcapsule forming mechanism 400. Figure 1-6 .

[0070] The core material liquid supply pool 100 is concave, preferably sealed, and is used to load the core material solution of the microcapsules. The core material solution can be alkanes, esters, alcohols, fatty acids, inorganic salts or other materials. It is docked with the conveying mechanism 200 to facilitate the conveying mechanism 200 to extract the core material solution from the core material liquid supply pool 100.

[0071] One end of the conveying mechanism 200 is connected to the core material liquid supply tank 100 , and the other end is connected to the microcapsule forming mechanism 400 , so that the core material solution extracted from the core material liquid supply tank 100 can be conveyed to the microcapsule forming mechanism 400 to form microcapsules.

[0072] The liquid pumping mechanism 300 is installed on the conveying mechanism 200 and is used to pump the core material solution in the core material liquid supply tank 100 into the conveying mechanism 200 .

[0073] The microcapsule forming mechanism 400 is connected to the conveying mechanism 200 and is used to embed the core material. Specifically, after the core material solution falls into the microcapsule forming mechanism 400, the core material solution droplets react with the packaging material solution in the microcapsule forming mechanism 400 to form a gel. After cleaning and drying, microcapsules can be prepared.

[0074] The multi-channel microcapsule preparation device of the embodiment of the present application can automatically extract the core material solution, and under the power provided by the extraction mechanism 300, the core material solution reacts with the packaging material solution in the form of small droplets, and finally forms microcapsules with uniform size, good encapsulation effect and high stability.

[0075] In some embodiments, reference Figure 3 The conveying mechanism 200 includes a main liquid suction pipe 210 and a liquid outlet pipe group 220. The diameter of the main liquid suction pipe 210 is larger than that of the liquid outlet pipe group 220, which can ensure that a large amount of core material solution is extracted and the production efficiency of the microcapsules is ensured. The material is preferably metal, polyethylene, polypropylene or other materials. The liquid extraction mechanism is installed on the main liquid suction pipe 210 to ensure the liquid extraction efficiency. One end of the main liquid suction pipe 210 extends into the bottom of the core material supply tank 100, and the cross-sectional shape of one end located in the core material supply tank 100 is an inclined surface, which can ensure the extraction efficiency of the core material solution in the core material supply tank 100; the liquid outlet pipe group 220 is connected to the main liquid suction pipe 210, and its end is connected to the microcapsule forming mechanism 400, so that small droplets fall directly into the connection with the microcapsule forming mechanism 400. It includes multiple pipes, and the inner diameter of the pipes is smaller than the main liquid suction pipe 210, which can simultaneously produce microcapsules with high efficiency and ensure that the particles of the microcapsules are small enough.

[0076] In the embodiment of the present application, the core material solution extracted from the core material liquid supply pool 100 flows through the main liquid suction pipe 210 and the liquid outlet pipe group 220 in sequence, and then flows into the microcapsule molding 400. After the reaction, microcapsules are obtained, and because they are squeezed through the liquid outlet pipe group 220, the outflowing droplets are small enough, so that the particle size of the obtained microcapsules can be small enough. In addition, because the core material is immersed in the packaging material solution, such a treatment can make the surface of the core material fully wrapped by the packaging material, which can effectively improve the embedding rate of the microcapsules.

[0077] In some embodiments, reference Figure 1 and Figure 3 , the liquid outlet tube group 220 includes a liquid outlet needle port 221, a plurality of fine liquid pipettes 222 and a conductive disk 223, there are a plurality of liquid outlet needle ports 221, and each liquid outlet needle port 221 corresponds to a fine liquid pipette 222, and the inner diameter of the end of the liquid outlet needle port 221 connected to the fine liquid pipette 222 is larger than the inner diameter of the end of the liquid outlet needle port 221 away from the fine liquid pipette 222, such a treatment can make the core material solution droplets derived from the liquid outlet needle port 221 small, thereby further ensuring that the particles of the obtained microcapsules are small enough, and the liquid outlet needle port 221 can have different inner diameters, and the liquid outlet needle port 221 with a suitable inner diameter is selected according to the required particle size of the microcapsules, the liquid outlet needle port 221 and the fine liquid pipette 222 are threadedly connected or otherwise connected, the liquid outlet needle port 221 is provided with a surrounding protrusion at the end connected to the fine liquid pipette 222, so as to facilitate stable installation in the conductive disk 223, and the liquid outlet needle port 221 is a conductive material The material is preferably metal, such as iron, copper, etc.; there are multiple thin pipettes 222, and the multiple thin pipettes 222 are arranged in parallel, each thin pipette 222 is connected to the pipette main pipette 210, the inner diameter of the thin pipette 222 is smaller than the inner diameter of the pipette main pipette 210, and the extracted core material solution can be diverted and refined, and the thin pipette 222 is made of insulating material, such as polyethylene or silicone; the conductive disk 223 is connected to an external power supply, and a card interface is provided therein, the card interface has a large diameter at the upper end and a small diameter at the lower end, which is convenient for placing the liquid outlet needle port 221 therein, and the diameter of the card interface is smaller than the diameter of the protrusion surrounding the liquid outlet needle port 221, and the liquid outlet needle port 221 can be stably connected, and the conductive disk 223 is connected to an external power supply, so that the liquid outlet needle port 221 can be energized, and smaller droplets can be formed under the action of the electric field and gravity, and the size of the electric field can be controlled to control the size of the droplets, thereby controlling the size of the microcapsules.

[0078] In the embodiment of the present application, the core material solution in the core material liquid supply tank 100 is extracted by the liquid extraction mechanism through the liquid suction main pipette 210 each time, and flows into the microcapsule forming mechanism 400 after passing through the fine liquid suction tube 222 and the liquid outlet needle port 221 in sequence.

[0079] In some embodiments, reference Figure 2The liquid extraction mechanism 300 includes an upper extrusion member 310, a lower extrusion member 320, a push assembly 330 and a driving assembly 340. The upper extrusion member 310 and the lower extrusion member 320 have the same shape and are installed on the main liquid pipette 210 in the same direction. The upper extrusion member 310 and the lower extrusion member 320 are both arranged downward. When it is necessary to extract the core material solution, the negative pressure is generated by the push assembly 330 to squeeze the lower extrusion member 320, and the core material solution is extracted into the main liquid pipette 210. Then, the push assembly 330 is reversed to squeeze the upper extrusion member 310 and transport the extracted core material solution into the fine liquid pipette 222. Such an operation can ensure the frequency and amount of extraction, so that the core material droplets squeezed each time can fully react with the packaging material solution before continuing to be squeezed, so that the extruded core material can be The solution is not easy to aggregate, thereby ensuring that the size uniformity of the prepared microcapsules is good; the pushing component 330 is connected to the main pipette 210 and the pushing component 330 is located between the upper extrusion piece 310 and the lower extrusion piece 320. When the pushing component 330 is pulled outward, negative pressure is generated, causing the lower extrusion piece 320 to absorb the core material solution in the core material supply pool 100. At this time, the core material solution is located in the main pipette 210 between the upper extrusion piece 310 and the lower extrusion piece 320. The pushing component 330 is reversed again, so that the core material solution extracted inside is discharged into the fine pipette 221; the driving component 340 is connected to the pushing component 330 in transmission, and can drive the pushing component 330 to move back and forth through a stable rotation frequency, thereby ensuring that the amount of each extraction and infusion is uniform.

[0080] In the embodiment of the present application, the driving component 340 drives the pushing component 330 to move forward and backward during the stable rotation process, thereby driving the lower extrusion component 320 and the upper extrusion component 310 to be squeezed in sequence, thereby extracting the core material solution.

[0081] In some embodiments, reference Figure 2 and Figure 4The upper extrusion member 310 includes an extrusion shell 311, a blocking ball 312 and an extrusion spring 313. The extrusion shell 311 is hollow inside. The inner diameter of the end of the upper extrusion member 310 away from the core material liquid supply tank 100 is larger than the inner diameter of the end of the upper extrusion member 310 close to the core material liquid supply tank 100. The end of the extrusion shell 311 close to the core material liquid supply tank 100 is truncated cone-shaped, and the area of ​​the truncated cone close to the core material liquid supply tank 100 is smaller than the area of ​​the truncated cone away from the core material liquid supply tank 100. The end area of ​​the extrusion shell 311 is connected to the main liquid pipette 210 at both ends, which can ensure that the core material solution is squeezed out every time; the blocking ball 312 is movably arranged in the extrusion shell 311, and the diameter of the blocking ball 312 is larger than the inner diameter of the main liquid pipette 210 and the inner diameter of the end of the extrusion shell 311 close to the core material liquid supply tank 100. When the push assembly 330 is withdrawn outward, the blocking ball 312 has a smaller diameter than the inner diameter of the end of the extrusion shell 311 close to the core material liquid supply tank 100. The inner diameter of the sealing ball 312 will be stuck in the lower end of the extrusion shell 311, and the sealing ball 312 located in the lower extrusion piece 320 will move upward under the suction of negative pressure, causing the core material solution below to flow into the main pipette 210 through the lower extrusion piece 320. When the pushing assembly 330 is squeezed inward, the sealing ball 312 located in the lower extrusion piece 320 will be stuck in the lower extrusion piece 320, and the sealing ball 312 located in the upper extrusion piece 310 will move upward, so that the core material solution can flow into the fine pipette 222 through the upper extrusion piece 310; the extrusion spring 313 is accommodated in the extrusion shell 311 and the bottom of the extrusion spring 313 is fixed on the top of the sealing ball 312. The diameter of the extrusion spring 313 is larger than the inner diameter of the extrusion shell 311. When the sealing ball 312 moves upward, the extrusion spring 313 will provide a certain reaction force, thereby slowing down the inflow speed of the core material solution and ensuring that the droplets squeezed out from the liquid outlet needle port 221 are small enough.

[0082] In the embodiment of the present application, the entire extraction process is specifically that the pushing component 330 is first pulled outward, driving the sealing ball 312 in the lower extrusion component 320 to move upward under the action of negative pressure. At this time, the sealing ball 312 in the upper extrusion component 310 is fixed, and due to the reaction force applied by the extrusion spring 313, the sealing ball 312 in the lower extrusion component 320 can slowly move upward. After the extraction is completed, the pushing component 330 is pushed inward, and the sealing ball 312 in the upper extrusion component 310 moves upward under the action of negative pressure. At this time, the sealing ball 312 in the lower extrusion component 320 is fixed, thereby realizing the pushing of the core material solution.

[0083] In some embodiments, reference Figure 4The push assembly 330 includes a push shell 331, a push spring 332 and a push block 333. The push shell 331 is hollow inside and one end is connected to the main pipette 210. The position where the push shell 331 is connected to the main pipette 210 is located between the upper extrusion member 310 and the lower extrusion member 320, which is convenient for driving the upper extrusion member 310 and the lower extrusion member 320 to work; the push spring 332 is located in the push shell 331, and the diameter of the push spring 332 is larger than the diameter of the end of the push shell 331. The push block 333 is movably installed at the other end of the push shell 331. The end of the push block 333 is connected to the push spring 332, which can play a buffering role. The part of the push block 333 located outside the push shell 331 is transmission connected to the drive assembly 340, and can move regularly under the drive of the drive assembly 340.

[0084] In the embodiment of the present application, the movement of the driving assembly 340 drives the push block 333 to move forward and backward, thereby driving the upper extrusion member 310 and the lower extrusion member 320 to move in a circular motion.

[0085] In some embodiments, reference Figure 4-5 The driving assembly 340 includes a driving member 341, a limiting groove 342, a driving rod 343, a rotating wheel 344, a driving motor 345 and a stabilizing member 346. The driving member 341 includes a plate body and two straight rods fixed at both ends of the plate body. One straight rod of the driving member 341 is fixedly connected to the push block 333; the limiting groove 342 is provided on the driving member 341, the limiting groove 342 is in the shape of Ω and the curved part is in the shape of an arc, and the limiting groove 342 is used to accommodate the driving rod 343; the driving rod 343 is a round rod, which is slidably arranged in the limiting groove 342 and fixed on the side of the rotating wheel 344. When the driving rod 343 rotates with the rotating wheel 344, the driving rod 343 slides in the limiting groove 342 at the same time, and drives the driving member 341 to move forward and backward; the rotating wheel 344 is coaxially connected to the driving motor 345, and can rotate under the drive of the driving motor 345, thereby driving the driving rod 343 to rotate; there are multiple stabilizing members 346, and the multiple stabilizing members 346 are all sleeved on the driving member 341 and fixed to the outside, which can ensure that the driving member 341 moves on a specified route.

[0086] In the embodiment of the present application, the driving motor 345 can be used to drive the rotating wheel 344 to rotate, thereby driving the driving rod 343 to rotate, and then driving the driving member 341 to move forward and backward, thereby driving the pushing block 333 to move forward and backward.

[0087] In some embodiments, reference Figure 4 The driving assembly 340 also includes two stabilizing wheels 347 respectively meshing with the two sides of the rotating wheel 344. The stabilizing wheels 347 are rotatably mounted on the outside and meshing with the rotating wheel 344, which can stabilize the rotation trajectory of the rotating wheel 344 and improve the working stability of the device.

[0088] In some embodiments, reference Figure 6 The microcapsule forming mechanism 400 includes a solution pool 410, a rotating drum 420, a rotating base 430, a driving gear 440, a driving gear 450 and a rotating motor 460. The solution pool 410 is concave and is used to load a shell material solution or a cleaning solution. A limited position space is set around the edge of the solution pool 410 to limit the position of the rotating drum 420; the rotating drum 420 can be detachably installed in the solution pool 410, and a plurality of through holes are opened on the rotating drum 420, which can ensure that the cleaning solution or the packaging material solution enters the rotating drum 420 through the through holes when the rotating drum 420 rotates, and can also be used when the rotating drum 420 rotates. After the microcapsule preparation is completed, when the entire rotating drum 420 is taken out, it is convenient to filter out the cleaning solution or the packaging material solution; the top of the rotating base 430 is clamped with the bottom of the rotating drum 420 to drive the rotating drum 420 to rotate, the rotating base 430 is coaxially connected with the driving gear 450, and a partition plate is provided between the rotating base 430 and the driving gear 450 to facilitate the separation of the packaging material solution from the bottom part; the driving gear 440 is meshed with the driving gear 450, which can drive the driving gear 450 to rotate; the rotating motor 460 is coaxially connected with the driving gear 440 to drive the driving gear 440 to rotate.

[0089] In some embodiments, a heating tube 470 is installed on the inner wall of the solution pool 410, which can heat the solution pool 410 when the temperature needs to be increased. The heating tube 470 is installed on the inner wall of the solution pool 410 through a clamp, and its position is close to the inner wall of the solution pool 410 and away from the outer wall of the solution pool 410, which can minimize heat loss. Preferably, the space on the inner wall of the solution pool 410 is filled with inert gas to further ensure the heat retention effect and save energy.

[0090] In summary, the embodiment of the present application loads the core material solution into the core material liquid supply tank 100, extracts the core material solution in the core material liquid supply tank 100 through the pumping mechanism 300, relies on the conveying mechanism 200 to extract the core material solution and drips it into the microcapsule forming mechanism 400, waits for the core material solution and the packaging material solution to undergo polymerization reaction to form a gel, and continuously stirs the microcapsule forming mechanism 400 during the reaction process, so that the obtained microcapsule particles are small and the embedding effect is good, thereby improving the stability of the microcapsules.

Claims

1. A multi-channel microcapsule preparation device, characterized in that: include Core material supply tank, used to load the core material solution of microcapsules, The conveying mechanism is connected to the core material liquid supply tank. The pumping mechanism is installed on the conveying mechanism and is used to pump the core material solution in the core material supply tank into the conveying mechanism. The microcapsule forming mechanism is connected to the conveying mechanism and is used to embed the core material.

2. A multi-channel microcapsule preparation device according to claim 1, characterized in that: The conveying mechanism includes a main liquid suction pipe and a liquid discharge pipe group. The main pipette is used to extract the core material solution. One end of the main pipette is located in the core material liquid supply pool and the other end is connected to the liquid outlet pipe set. The liquid extraction mechanism is installed on the main pipette. The liquid outlet pipe group is connected to the microcapsule forming mechanism.

3. A multi-channel microcapsule preparation device according to claim 2, characterized in that: The liquid outlet tube assembly includes a liquid outlet needle port, a thin liquid pipette and a conductive disk. There are multiple liquid outlet needle ports, each of which corresponds to a plurality of fine liquid pipettes. The liquid outlet needle ports are located above the microcapsule forming mechanism, and the liquid outlet needle ports are detachably connected to the fine liquid pipettes. The plurality of thin pipettes are connected to the main pipette, and each thin pipette is connected to the liquid outlet needle. The conductive disk is used for installing the liquid outlet needle port.

4. A multi-channel microcapsule preparation device according to claim 2, characterized in that: The pumping mechanism comprises an upper extrusion member, a lower extrusion member, a push assembly and a drive assembly. The upper extrusion piece and the lower extrusion piece have the same structure and are both installed on the main liquid suction pipe. The upper extrusion piece and the lower extrusion piece are both facing the core material liquid supply pool. The push assembly is connected to the main liquid suction pipe and is located between the upper extrusion member and the lower extrusion member. The driving assembly is transmission-connected with the pushing assembly.

5. A multi-channel microcapsule preparation device according to claim 4, characterized in that: The upper extrusion member includes an extrusion shell, a blocking ball and an extrusion spring. Both ends of the extruded shell are connected to the main liquid suction pipe. The interior of the extruded shell is hollow and the inner diameter of the lower end is smaller than the inner diameter of the upper end. The blocking ball is located in the extrusion shell and has a diameter greater than the inner diameter of the lower end of the extrusion shell. The extrusion spring is located on the top of the blocking ball and has a diameter greater than the inner diameter of the main liquid suction pipe.

6. A multi-channel microcapsule preparation device according to claim 4, characterized in that: The push assembly includes a push housing, a push spring and a push block. The push shell is hollow inside and one end is connected to the main liquid suction pipe. The push spring is located in the push housing. The push block is movably mounted on the other end of the push housing, the push block is connected to the push spring, and the push block is transmission-connected to the driving assembly.

7. A multi-channel microcapsule preparation device according to claim 4, characterized in that: The driving assembly includes a driving member, a limiting groove, a driving rod, a rotating wheel, a driving motor and a stabilizing member. The driving member is connected to the pushing assembly. The limiting groove is provided on the driving member and is used to accommodate the driving rod. The driving rod is slidably disposed in the limiting groove and fixed on the rotating wheel. The rotating wheel is coaxially connected to the driving motor. There are multiple stabilizing members, and all of the multiple stabilizing members are sleeved on the driving member and fixed to the outside.

8. A multi-channel microcapsule preparation device according to claim 7, characterized in that: The driving assembly also includes two stabilizing wheels respectively meshed with two sides of the rotating wheel.

9. The multi-channel microcapsule preparation device according to claim 1, characterized in that: The microcapsule forming mechanism includes a solution pool, a rotating drum, a rotating base, a driving gear, a driving gear and a rotating motor. The solution tank is used to load shell material solution or cleaning solution. The rotating drum can be detachably installed in the solution pool, and a plurality of through holes are provided on the rotating drum. The top of the rotating base is connected to the bottom of the rotating drum to drive the rotating drum to rotate. The driving gear is meshed with the driving gear. The driving gear is coaxially connected to the rotating base and is used to drive the rotating base to rotate. The rotating motor is coaxially connected with the driving gear.

10. The multi-channel microcapsule preparation device according to claim 1, characterized in that: Also includes a heating mechanism, The heating mechanism comprises a heating tank, a liquid inlet, a liquid outlet and a partition plate. The heating tank is sleeved on the conveying mechanism and is used to heat the core material solution in the conveying mechanism. The liquid inlet is located at one end of the bottom of the heating tank close to the core material liquid supply pool and is used to introduce hot water. The liquid outlet is opened at one end of the top of the heating tank away from the core material liquid supply pool. There are multiple partition plates, which are evenly distributed in the heating tank. One end of each partition plate is fixed to the inner wall of the heating tank and the other end forms a liquid passage with the inner wall of the heating tank. The liquid passages of two adjacent partition plates are in opposite positions, and each partition plate is provided with multiple through holes.

Images