Sample preparation device for microcapsule sample preparation

Abstract

The sample preparation device comprises a sample preparation machine body, a PH detector is installed on one side of the sample preparation machine body, a connecting rope is connected to one side of the PH detector, a detection probe is fixedly connected to one side of the connecting rope, a stirring cup is placed at the top of the sample preparation machine body, and a heating assembly is fixedly connected to one side of the sample preparation machine body. According to the scheme, flexible stirring is adopted, the method is more suitable for preparing microcapsules formed by complexing anions and cations, the problems that due to the fact that the mechanical stirring and shearing effect is obvious, demulsification is caused at a high rotating speed, and a solution cannot be fully dispersed at a low rotating speed are solved, the change of the pH value in the solution is concerned all the time, and the operation is simple and convenient. The coating effect of the microcapsule is improved, the heating block heats the side edge of the cup body, the contact area is larger, the heating speed of a solution in the cup body is increased, and meanwhile, the situation that the solution is not evenly heated due to the depth of the solution when the bottom of the cup body is heated is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of microcapsule sample preparation, and more specifically, to a sample preparation device for microcapsule sample preparation. Background Art

[0002] Microencapsulation is a technology that encapsulates core materials (solid, liquid or gas compounds or mixtures thereof) inside polymers to achieve the purpose of enhancing the stability of the core material, masking of flavors, durability of effects and controllability of release rates.

[0003] Microcapsules prepared by different methods and processes can have particle sizes ranging from hundreds of nm to hundreds of μm, and can be retained in the air by spraying. Microcapsule particles often carry charges on their surfaces, thereby absorbing bioaerosol particles. During preparation, the core material characteristics can be selected. For example, core materials with antibacterial properties, such as plant essential oils, can inhibit the reproduction of pathogenic microorganisms, so the prepared microcapsule materials can be used to hinder the spread of pathogenic bioaerosols.

[0004] In the preparation research of microcapsule particles, the applicant found that when preparing microcapsules by emulsion template method (a common microcapsule preparation method), the dispersion treatment method of the emulsion significantly affects the morphology and coverage rate of the microcapsules, thereby affecting the final use effect.

[0005] The traditional dispersion method is through mechanical stirring. The final microcapsules not only have unsatisfactory morphology, but also have low coverage. Figure 1 As shown in Figure a, the coating and dispersion effects are poor, and the particle size is very large and uneven; therefore, a device suitable for preparing microcapsule particles is needed to ensure that the morphological properties of the microcapsules reach a better level during the dispersion processing stage. Summary of the invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sample preparation device for microcapsule sample preparation, which can overcome the problem of poor dispersion effect caused by traditional stirring methods and is suitable for the dispersion stage process when preparing microcapsule particles in various methods (not limited to emulsion template method).

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a sample preparation device for preparing microcapsule samples, comprising a sample preparation body, a pH detector is installed on one side of the sample preparation body, a connecting rope is connected to one side of the pH detector, a detection probe is fixedly connected to one side of the connecting rope, a stirring cup is placed on the top of the sample preparation body, a heating component is fixedly connected to one side of the sample preparation body, and the heating component is sleeved on one side of the stirring cup; The sample preparation body comprises a fuselage, the bottom of the fuselage is fixedly connected with a supporting foot, one side of the fuselage is provided with a display screen and an adjusting knob, the top of the fuselage is fixedly connected with a placing plate, the top of the placing plate is fixedly connected with a positioning block, one side of the fuselage is fixedly connected with a connecting block, the top of the connecting block is fixedly connected with a supporting frame, the outer surface of the supporting frame is movably sleeved with a supporting component, the outer surface of the supporting frame is fixedly connected with an instrument fixing frame, the instrument fixing frame is clamped on the outer surface of the pH detector, and the connecting rope is movably sleeved inside the supporting frame; A control mainboard is fixedly connected inside the fuselage, a weighing sensor is arranged inside the fuselage, a support block is fixedly connected to the bottom of the placement plate, and the support block is fixedly connected to the top of the weighing sensor.

[0008] In a preferred embodiment, the bottom of the placement plate is located inside the body and is fixedly connected to a rotating motor, a rotating block is provided on one side of the rotating motor, the rotating block is rotatably installed inside the positioning block, and a plurality of magnet blocks are provided on the outer surface of the rotating block.

[0009] In a preferred embodiment, the support assembly includes a fixing ring, one side of the fixing ring is threadedly connected to a locking bolt, one side of the fixing ring is fixedly connected to a support rod, a sleeve hole is opened on the side of the support rod away from the locking bolt, a pad is fixedly connected to the side of the bottom of the support rod close to the sleeve hole, one side of the pad is fixedly connected to a temperature sensor, the fixing ring is movably sleeved on the outer surface of the support frame, the locking bolt is threadedly connected to one side of the support frame, the pad is clamped on the outer edge of the stirring cup, and the temperature sensor is located on one side of the inside of the stirring cup, and the sleeve hole is movably sleeved on the outer surface of the detection probe.

[0010] In a preferred embodiment, the stirring cup includes a cup body, a socket hole is opened at the bottom of the cup body, the socket hole is movably socketed on the outer surface of the positioning block, the outer surface of the socket hole is fixedly connected to a positioning ring, a plurality of balls are rotatably mounted on the outer surface of the upper end of the socket hole, a magnetic cover is movably socketed on the top of the socket hole, the bottom of the magnetic cover is movably socketed on the outer surface of the positioning ring, a stirring paddle is fixedly connected to the top of the magnetic cover, and the inside of the magnetic cover is rotatably mounted on the outer surface of the ball.

[0011] In a preferred embodiment, the diameters of the two sides of the stirring paddle are smaller than the diameter of the middle part, the two ends of the stirring paddle are arc-shaped, and the magnetic cover is made of magnetic material.

[0012] In a preferred embodiment, the heating assembly includes an L-shaped frame, which is fixedly installed on a side of the body away from the display screen, one side of the L-shaped frame is fixedly connected to a hydraulic telescopic rod, the upper and lower ends of one side of the L-shaped frame are movably sleeved with movable rods, one side of the movable rod is fixedly connected to an arc frame, the side of the arc frame is fixedly connected to one side of the hydraulic telescopic rod, and the arc frame is slidably installed above the placement plate.

[0013] In a preferred embodiment, the upper and lower ends of the arc frame are fixedly connected with fixing parts, the number of the fixing parts is three, the shape of the arc frame is arc-shaped, the three fixing parts are evenly distributed on the inner wall of the arc frame, and a heating block is rotatably installed inside the fixing part.

[0014] In a preferred embodiment, the heating block includes a heating cover, one side of the heating cover is fixedly connected to a rotating member, the rotating member is rotatably mounted inside the fixed member, one side of the heating cover is fixedly connected to a heat conducting plate, and a heating wire is arranged inside the heating cover on one side of the heat conducting plate.

[0015] In a preferred embodiment, a heating controller is fixedly installed on the upper end of the arc frame, a fixing piece is provided on one side of the heating controller, the fixing piece is connected to the heating wire, a blower is fixedly installed on the lower end of the arc frame, an air inlet pipe is provided on one side of the blower, and one end of the air inlet pipe is connected to the lower end of the heating block, the upper end of the heating block is connected to an exhaust pipe, and one end of the exhaust pipe is placed inside the cup body.

[0016] Technical effects and advantages of the present invention: 1. The present invention sets a rotating motor to control the rotation of the magnet block on the rotating block, and through the magnetic connection between the magnetic cover and the magnet block, the magnetic cover is rotated on the outer surface of the sleeve hole, and the stirring paddle is driven to rotate and stir at the bottom of the cup body. The arc-shaped outer surface of the stirring paddle adopts flexible stirring, which is more suitable for the preparation of microcapsules formed by anion and cation complexes, avoiding the problem of demulsification at high speed due to obvious shear effect of mechanical stirring, and failure to fully disperse the solution at low speed.

[0017] 2. The present invention monitors the solution inside the stirring cup by arranging the supporting component on the outer surface of the supporting frame, constantly pays attention to the change of pH value in the solution, and improves the coating effect of the microcapsules.

[0018] 3. The present invention provides an arc-shaped frame to support the heating block, so that the heating block heats the side of the cup body with a larger contact area, which not only improves the heating speed of the solution inside the cup body, but also avoids heating the bottom of the cup body, which would result in uneven heating of the solution due to the depth of the solution; and the blower provided on the arc-shaped frame and used in conjunction with the heating block can further quickly and evenly improve the heating speed and temperature rise stability of the solution inside the cup body, and it blows hot air bubbles into the solution in the cup body through the exhaust pipe. The blown hot bubbles can cooperate with the flexible magnetic stirring paddle to further improve the complexing effect of ions and the contact and collision efficiency between particles, thereby enhancing the improvement of the microcapsule morphology.

[0019] 4. The present invention rotates the heating blocks on the inner wall of the arc frame. When the hydraulic telescopic rod pushes the arc frame to move to the side of the cup body, the three heating blocks will automatically rotate when they contact the outer surface of the cup body, and make the heating blocks fit the outer surface of the cup body, so that the heating assembly can adapt to stirring cups of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Microscope images showing the effects of different treatment methods on the final morphology of microcapsules.

[0021] Figure 2 It is a schematic diagram of the structure of the sample preparation device of the present invention.

[0022] Figure 3 It is a schematic diagram of the sample preparation body structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the internal structure of the sample preparation body of the present invention.

[0024] Figure 5 It is a schematic diagram of the support assembly structure of the present invention.

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the stirring cup of the present invention.

[0026] Figure 7 It is a schematic diagram of the heating component structure of the present invention.

[0027] Figure 8 It is a schematic diagram of the heating block structure of the present invention.

[0028] The accompanying drawings are marked as follows: 1, sample preparation body; 2, pH detector; 3, connecting rope; 4, detection probe; 5, heating component; 6, stirring cup; 7, support component; 11, fuselage; 12, support foot; 13, display screen; 14, adjustment knob; 15, placement plate; 16, positioning block; 17, connecting block; 18, support frame; 19, instrument fixing frame; 110, control main board; 111, weighing sensor; 112, support block; 113, rotating motor; 114, rotating block; 115, magnet block; 51, L-shaped frame; 52, hydraulic extension retractable rod; 53, movable rod; 54, arc frame; 55, fixing part; 56, heating block; 57, heating controller; 58, connecting line; 59, exhaust pipe; 510, blower; 511, air inlet pipe; 561, heating cover; 562, rotating part; 563, heat conduction plate; 564, heating wire; 61, cup body; 62, sleeve hole; 63, positioning ring; 64, ball; 65, magnetic cover; 66, stirring paddle; 71, fixing ring; 72, locking bolt; 73, support rod; 74, sleeve hole; 75, pad; 76, temperature sensor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The applicant proposed the use of emulsion template method to prepare microcapsule particle samples. The main raw materials used are chitosan (CS) and sodium hyaluronate (HA). Specifically, chitosan (CS) is used as a shell and to provide emulsification, the core material is coated and encapsulated (such as essential oil), and then the sodium hyaluronate (HA) is adsorbed and coated to make stable particles in the form of microcapsules. The traditional mechanical stirring method is prone to poor emulsification of chitosan (CS), that is, demulsification, and the shear effect is too large, resulting in unstable adsorption and complexation of sodium hyaluronate (HA) and poor effect, so good microcapsule particles cannot be prepared. As shown in the attached Figure 1 As shown in Figure a, this is a micrograph of the solution particles after being treated by traditional mechanical stirring. The stirring speed used is 600 rpm. It can be seen that the demulsification phenomenon is quite obvious, and no obvious coated microcapsule particles are produced. Figure 1As shown in Figure b, this is a micrograph of the solution particles after the traditional magnetic stirring method was used. It can be seen that the overall emulsification and dispersion effects are improved after magnetic stirring. However, actual measurements found that although the improvement is greater than that of mechanical stirring, due to the problems of shear force and low complexation efficiency, the final measured microcapsule coverage rate is only 25.3%, and it can be seen that flocculation occurs in the solution, which still cannot reach the ideal level of use.

[0031] Embodiment 1: As attached Figure 2-4 6 is an embodiment of the present invention, by setting a rotating motor 113, controlling the rotation of the magnet block 115 on the rotating block 114, and through the magnetic connection between the magnetic cover 65 and the magnet block 115, the magnetic cover 65 is rotated on the outer surface of the sleeve hole 62, and drives the stirring paddle 66 to rotate and stir at the bottom of the cup body 61, and the arc-shaped outer surface of the stirring paddle 66 is used, and flexible stirring is adopted, combined with a reasonable stable heating and hot air blowing method, which is more suitable for the preparation of microcapsules formed by anion and cation complexation, avoiding the problem of demulsification at high speed due to obvious shear effect of mechanical stirring, and the inability to fully disperse the solution at low speed.

[0032] A sample preparation device for preparing microcapsule samples, comprising a sample preparation body 1, a pH detector 2 is installed on one side of the sample preparation body 1, a connecting rope 3 is connected to one side of the pH detector 2, a detection probe 4 is fixedly connected to one side of the connecting rope 3, a stirring cup 6 is placed on the top of the sample preparation body 1, a heating component 5 is fixedly connected to one side of the sample preparation body 1, and the heating component 5 is sleeved on one side of the stirring cup 6; The sample preparation body 1 includes a body 11, a support foot 12 is fixedly connected to the bottom of the body 11, a display screen 13 and an adjustment knob 14 are arranged on one side of the body 11, a placement plate 15 is fixedly connected to the top of the body 11, a positioning block 16 is fixedly connected to the top of the placement plate 15, a connecting block 17 is fixedly connected to one side of the body 11, a support frame 18 is fixedly connected to the top of the connecting block 17, a support assembly 7 is movably sleeved on the outer surface of the support frame 18, an instrument fixing frame 19 is fixedly connected to the outer surface of the support frame 18, the instrument fixing frame 19 is clamped on the outer surface of the pH detector 2, a connecting rope 3 is movably sleeved inside the support frame 18, and positioning is performed by setting the positioning block 16, so that the stirring cup 6 can be placed more stably, and at the same time, it is more compatible with the detection probe 4 for detection; Among them, a control mainboard 110 is fixedly connected inside the fuselage 11 , a weighing sensor 111 is arranged inside the fuselage 11 , a support block 112 is fixedly connected to the bottom of the placement plate 15 , and the support block 112 is fixedly connected to the top of the weighing sensor 111 .

[0033] As attached Figure 4As shown, the bottom of the placement plate 15 is located inside the body 11 and is fixedly connected to a rotating motor 113. A rotating block 114 is provided on one side of the rotating motor 113. The rotating block 114 is rotatably installed inside the positioning block 16. A plurality of magnet blocks 115 are provided on the outer surface of the rotating block 114. The magnet blocks 115 magnetically attract the magnetic cover 65. When the magnet blocks 115 rotate, the magnetic cover 65 is driven to rotate on the outer surface of the socket hole 62, so that the stirring paddle 66 can rotate and stir.

[0034] By using the weighing sensor 111, when the placement plate 15 receives weight, the support block 112 will press on the top of the weighing sensor 111, causing the weighing sensor 111 to deform and detect the weight on the placement plate 15 through changes in resistance, so that the sample preparation device can detect the weight of the stirring cup 6. In the process of preparing microcapsules, there is no need to use other external weighing equipment, thereby improving the performance of the preparation device.

[0035] As attached Figure 6 As shown, the stirring cup 6 includes a cup body 61, a socket hole 62 is opened at the bottom of the cup body 61, the socket hole 62 is movably socketed on the outer surface of the positioning block 16, a positioning ring 63 is fixedly connected to the outer surface of the socket hole 62, a plurality of balls 64 are rotatably mounted on the outer surface of the upper end of the socket hole 62, a magnetic cover 65 is movably socketed on the top of the socket hole 62, the bottom of the magnetic cover 65 is movably socketed on the outer surface of the positioning ring 63, a stirring paddle 66 is fixedly connected to the top of the magnetic cover 65, and the inside of the magnetic cover 65 is rotatably mounted on the outer surface of the ball 64.

[0036] By setting the magnetic cover 65 to rotate on the outer surface of the positioning ring 63, the stirring paddle 66 can be stably rotated in the middle of the bottom surface of the cup body 61, thereby improving the stirring effect of the solution and preventing the stirring paddle 66 from moving during rotation and causing damage to the temperature sensor 76 and the detection probe 4 inside the cup body 61. In addition, the ball 64 is used to convert the sliding friction between the magnetic cover 65 and the socket hole 62 into rolling friction, thereby reducing the noise generated by the stirring and the stirring energy consumption.

[0037] The diameters of the two sides of the stirring paddle 66 are smaller than the diameter of the middle part. Both ends of the stirring paddle 66 are arc-shaped. The magnetic cover 65 is made of magnetic material.

[0038] The outer surface of the stirring paddle 66 is in an arc shape, so that the stirring paddle 66 reduces the shearing effect on the solution during rotation, thereby avoiding demulsification at high rotation speed and failure to fully disperse the solution at low rotation speed.

[0039] Embodiment 2: As attached Figure 2-5In one embodiment of the present invention, during the preparation of microcapsules, it is necessary to always pay attention to the change of pH value in the solution. By setting the support component 7 on the outer surface of the support frame 18, the solution inside the stirring cup 6 is monitored to improve the coating effect of the microcapsules.

[0040] The second embodiment is further optimized relative to the first embodiment in that the support assembly 7 includes a fixing ring 71, a locking bolt 72 is threadedly connected to one side of the fixing ring 71, a support rod 73 is fixedly connected to one side of the fixing ring 71, a sleeve hole 74 is provided on the side of the support rod 73 away from the locking bolt 72, a cushion block 75 is fixedly connected to the side of the bottom of the support rod 73 close to the sleeve hole 74, a temperature sensor 76 is fixedly connected to one side of the cushion block 75, the fixing ring 71 is movably sleeved on the outer surface of the support frame 18, the locking bolt 72 is threadedly connected to one side of the support frame 18, the cushion block 75 is clamped on the outer edge of the stirring cup 6, and the temperature sensor 76 is located on one side of the inside of the stirring cup 6, and the sleeve hole 74 is movably sleeved on the outer surface of the detection probe 4.

[0041] By using the spacer 75, when the support rod 73 is located above the cup body 61, the temperature sensor 76 and the detection probe 4 inside the sleeve hole 74 are located inside the cup body 61. With the support of the support rod 73, the temperature sensor 76 and the detection probe 4 are located on the side of the cup body 61, and the magnetic cover 65 is positioned on the outer surface of the sleeve hole 62 to prevent the stirring paddle 66 from shifting during rotation and colliding with the temperature sensor 76 and the detection probe 4, thereby realizing the detection of the cup body 61 by the temperature sensor 76 and the detection probe 4.

[0042] Embodiment 3: As attached Figure 2-8 In one embodiment of the present invention, an arc frame 54 is provided to support the heating block 56 so that the heating block 56 heats the side of the cup body 61 with a larger contact area, which not only improves the heating speed of the solution inside the cup body 61, but also avoids heating the bottom of the cup body 61, which would result in uneven heating of the solution due to the depth of the solution.

[0043] The optimization of this embodiment 3 lies in that the heating component 5 includes an L-shaped frame 51, which is fixedly installed on the side of the body 11 away from the display screen 13, one side of the L-shaped frame 51 is fixedly connected to a hydraulic telescopic rod 52, the upper and lower ends of one side of the L-shaped frame 51 are movably sleeved with movable rods 53, one side of the movable rod 53 is fixedly connected to an arc frame 54, the side of the arc frame 54 is fixedly connected to one side of the hydraulic telescopic rod 52, and the arc frame 54 is slidably installed above the placement plate 15.

[0044] Among them, the upper and lower ends of the arc frame 54 are fixedly connected with fixing parts 55, the number of fixing parts 55 is three, the shape of the arc frame 54 is arc-shaped, the three fixing parts 55 are evenly distributed on the inner wall of the arc frame 54, and a heating block 56 is rotatably installed inside the fixing part 55.

[0045] By rotating the heating block 56 on the inner wall of the arc frame 54, when the hydraulic telescopic rod 52 pushes the arc frame 54 to move to the side of the cup body 61, the three heating blocks 56 will automatically rotate when they contact the outer surface of the cup body 61, and make the heating blocks 56 fit the outer surface of the cup body 61, so that the heating component 5 can adapt to stirring cups 6 of different sizes.

[0046] In addition, the hydraulic telescopic rod 52 enables the arc frame 54 to leave the surface of the cup body 61 , thereby preventing the heating block 56 from being attached to the surface of the cup body 61 and affecting the weighing of the mixing cup 6 by the weighing sensor 111 .

[0047] Among them, the heating block 56 includes a heating cover 561, one side of the heating cover 561 is fixedly connected to a rotating member 562, the rotating member 562 is rotatably installed inside the fixed member 55, one side of the heating cover 561 is fixedly connected to a heat conducting plate 563, and a heating wire 564 is arranged inside the heating cover 561 on one side of the heat conducting plate 563.

[0048] The upper end of the arc frame 54 is fixedly installed with a heating controller 57, and a fixing member 55 is provided on one side of the heating controller 57, and the fixing member 55 is connected to the heating wire 564. The lower end of the arc frame 54 is fixedly installed with a blower 510, and an air inlet pipe 511 is provided on one side of the blower 510, and one end of the air inlet pipe 511 is connected to the lower end of the heating block 56, and the upper end of the heating block 56 is connected with an exhaust pipe 59, and one end of the exhaust pipe 59 is placed inside the cup body 61. This exhaust pipe is an anti-corrosion hose, which can be changed in shape and placed in different cup bodies. At this time, the blower 510 blows air into the interior of the heating block 56, and the heating controller (57) controls the heating wire 564 to heat. The blown air is heated and then introduced into the liquid medium through the exhaust pipe 59, so that the liquid medium is evenly and quickly heated, and the generated hot bubbles can accelerate the complexation of ions, cooperate with the effect of the flexible stirring paddle, reduce the shear force, and enhance the complexation adsorption effect, thereby improving the coverage rate and dispersion effect of the particles.

[0049] Working principle of the present invention: When in use, the sleeve hole 62 at the bottom of the cup body 61 is sleeved on the outer surface of the positioning block 16, and the weighing sensor 111 is reset to zero through the display screen 13, and the locking bolt 72 is rotated to make the fixing ring 71 drop on the outer surface of the support frame 18, and the cushion block 75 is clamped on the outer edge of the cup body 61, and the temperature sensor 76 and the detection probe 4 are inside the cup body 61, and the solution is transferred to the cup body 61; The outer surface of the cup body 61 is held by hand, and the hydraulic telescopic rod 52 is started to push the arc frame 54 to move toward the direction of the cup body 61. When the hydraulic telescopic rod 52 pushes the arc frame 54 to move to the side of the cup body 61, the three heating blocks 56 will swing through the rotating member 562 when they contact the outer surface of the cup body 61, wherein the rotating member 562 is rotatably connected with the fixing member 55 by screws or bolts (not marked in the figure), so that the heating block 56 can make appropriate adjustments according to the outer surface of the cup body 61, and can better fit on the outer surface of various types of cup bodies; at this time, the heating wire 564 works, and heats the solution inside the cup body 61 through the heat conducting plate 563, sets a suitable temperature through the display screen 13, and makes the temperature sensor 76 detect the temperature of the solution inside the cup body 61, so that the solution inside the cup body 61 is kept at a constant temperature; Through the display screen 13, the rotating motor 113 is controlled to drive the magnet block 115 on the surface of the rotating block 114 to rotate. Through the magnetic attraction of the magnet block 115 to the magnetic cover 65, when the magnet block 115 rotates, it drives the magnetic cover 65 to rotate on the outer surface of the socket hole 62, so that the stirring paddle 66 can rotate and stir.

[0050] Comparative Example 1: The difference between Comparative Example 1 and Example 3 is that the structures of the blower 510, the air inlet pipe 511, and the exhaust pipe 59 are omitted, that is, no air blowing treatment is performed during the stirring treatment, and the remaining structures and methods are the same.

[0051] Attached Figure 1 As shown in Figure c, it is a micrograph of the solution particles after treatment in Comparative Example 1. It can be seen that there is no obvious flocculation in the solution after treatment by this device, which is better than the liquid state in Figure b, and the coverage rate of the microcapsules is also improved, reaching 45.4% after actual measurement.

[0052] Attached Figure 1 As shown in Figure d, it is a micrograph of the solution particles after treatment in Example 3. It can be seen that the particle stability and dispersibility in the solution treated by this device are both excellent, and the coverage rate of the microcapsules is as high as 72.3% after actual measurement.

[0053] It can be seen from the above that the device of the present application can significantly improve the preparation effect of microcapsule particles and can be applied to all stirring and homogenizing processes based on similar principles.

[0054] Finally, a few points should be explained: the drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sample preparation device for preparing microcapsule samples, comprising a sample preparation body (1), characterized in that: A pH detector (2) is installed on one side of the sample preparation body (1), a connecting rope (3) is connected to one side of the pH detector (2), a detection probe (4) is fixedly connected to one side of the connecting rope (3), a stirring cup (6) is placed on the top of the sample preparation body (1), a heating component (5) is fixedly connected to one side of the sample preparation body (1), and the heating component (5) is sleeved on one side of the stirring cup (6); The sample preparation body (1) comprises a body (11), the bottom of the body (11) is fixedly connected to a support foot (12), one side of the body (11) is provided with a display screen (13) and an adjustment knob (14), the top of the body (11) is fixedly connected to a placement plate (15), the top of the placement plate (15) is fixedly connected to a positioning block (16), one side of the body (11) is fixedly connected to a connection block (17), the top of the connection block (17) is fixedly connected to a support frame (18), the outer surface of the support frame (18) is movably sleeved with a support assembly (7), the outer surface of the support frame (18) is fixedly connected to an instrument fixing frame (19), the instrument fixing frame (19) is clamped on the outer surface of the pH detector (2), and the connecting rope (3) is movably sleeved inside the support frame (18); A control mainboard (110) is fixedly connected inside the body (11), a weighing sensor (111) is arranged inside the body (11), a support block (112) is fixedly connected to the bottom of the placement plate (15), and the support block (112) is fixedly connected to the top of the weighing sensor (111).

2. A sample preparation device for microcapsule sample preparation according to claim 1, characterized in that: The bottom of the placement plate (15) is located inside the machine body (11) and is fixedly connected to a rotating motor (113). A rotating block (114) is provided on one side of the rotating motor (113). The rotating block (114) is rotatably mounted inside the positioning block (16). A plurality of magnet blocks (115) are provided on the outer surface of the rotating block (114).

3. A sample preparation device for microcapsule sample preparation according to claim 1, characterized in that: The support assembly (7) comprises a fixing ring (71), one side of the fixing ring (71) is threadedly connected to a locking bolt (72), one side of the fixing ring (71) is fixedly connected to a support rod (73), a side of the support rod (73) away from the locking bolt (72) is provided with a sleeve hole (74), a bottom of the support rod (73) is fixedly connected to a cushion block (75) on a side close to the sleeve hole (74), one side of the cushion block (75) is fixedly connected to a temperature sensor (76), the fixing ring (71) is movably sleeved on an outer surface of the support frame (18), the locking bolt (72) is threadedly connected to one side of the support frame (18), the cushion block (75) is clamped on an outer edge of the stirring cup (6), and the temperature sensor (76) is located on one side of the stirring cup (6), and the sleeve hole (74) is movably sleeved on an outer surface of the detection probe (4).

4. A sample preparation device for microcapsule sample preparation according to claim 1, characterized in that: The stirring cup (6) comprises a cup body (61), the bottom of the cup body (61) is provided with a sleeve hole (62), the sleeve hole (62) is movably sleeved on the outer surface of the positioning block (16), the outer surface of the sleeve hole (62) is fixedly connected to a positioning ring (63), a plurality of balls (64) are rotatably mounted on the outer surface of the upper end of the sleeve hole (62), a magnetic cover (65) is movably sleeved on the top of the sleeve hole (62), the bottom of the magnetic cover (65) is movably sleeved on the outer surface of the positioning ring (63), the top of the magnetic cover (65) is fixedly connected to a stirring paddle (66), and the inside of the magnetic cover (65) is rotatably mounted on the outer surface of the balls (64).

5. A sample preparation device for microcapsule sample preparation according to claim 4, characterized in that: The diameters of the two sides of the stirring paddle (66) are smaller than the diameter of the middle part; the two ends of the stirring paddle (66) are arc-shaped; and the magnetic cover (65) is made of a magnetic material.

6. A sample preparation device for microcapsule sample preparation according to claim 1, characterized in that: The heating assembly (5) comprises an L-shaped frame (51), wherein the L-shaped frame (51) is fixedly mounted on a side of the machine body (11) away from the display screen (13), one side of the L-shaped frame (51) is fixedly connected to a hydraulic telescopic rod (52), upper and lower ends of one side of the L-shaped frame (51) are movably sleeved with movable rods (53), one side of the movable rod (53) is fixedly connected to an arc frame (54), a side edge of the arc frame (54) is fixedly connected to one side of the hydraulic telescopic rod (52), and the arc frame (54) is slidably mounted above the placement plate (15).

7. A sample preparation device for microcapsule sample preparation according to claim 6, characterized in that: The upper and lower ends of the arc frame (54) are fixedly connected with fixing parts (55), the number of the fixing parts (55) is three, the outer shape of the arc frame (54) is an arc, the three fixing parts (55) are evenly distributed on the inner wall of the arc frame (54), and a heating block (56) is rotatably installed inside the fixing part (55).

8. A sample preparation device for microcapsule sample preparation according to claim 7, characterized in that: The heating block (56) comprises a heating cover (561), one side of the heating cover (561) is fixedly connected to a rotating member (562), the rotating member (562) is rotatably mounted inside the fixed member (55), one side of the heating cover (561) is fixedly connected to a heat conducting plate (563), and a heating wire (564) is arranged inside the heating cover (561) on one side of the heat conducting plate (563).

9. A sample preparation device for microcapsule sample preparation according to claim 8, characterized in that: A heating controller (57) is fixedly mounted on the upper end of the arc frame (54), a fixing member (55) is provided on one side of the heating controller (57), and the fixing member (55) is connected to the heating wire (564); a blower (510) is fixedly mounted on the lower end of the arc frame (54), an air intake pipe (511) is provided on one side of the blower (510), and one end of the air intake pipe (511) is connected to the lower end of the heating block (56); an exhaust pipe (59) is connected to the upper end of the heating block (56), and one end of the exhaust pipe (59) is placed inside the cup body (61).

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