Preparation process, equipment and application of sunscreen synergistic composition
By using a partition plate and a guide device in the mixing tank, combined with a stirring assembly and a shear rod, the problem of oil phase raw materials floating on the top surface of the water phase is solved, efficient mixing of the oil phase and the water phase is achieved, and the preparation efficiency of the sunscreen synergistic composition is improved.
Patent Information
- Application Number
- CN202510827045.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-19
- Publication Date
- 2025-09-05
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the preparation of existing sunscreen synergistic compositions, when the oil phase raw materials and the water phase raw materials are mixed, the oil phase floats on top of the water phase due to the density difference, which prolongs the stirring and mixing time and affects the mixing efficiency.
A partition plate and a guide device are used to guide the oil phase raw materials into the water phase, and the oil phase and the water phase are fully mixed through the cooperation of the stirring component and the shear rod, including the combined use of the guide plate, the partition plate, the stirring shaft, the auger blade, the conveying cylinder, the stirring rod and the shear rod.
It accelerates the mixing process of the oil phase and the water phase, improves the mixing efficiency, ensures the full contact and refinement of the oil phase and the water phase, and promotes the rapid and uniform mixing of the composition.
Smart Images
Figure CN120586743A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of skin care product preparation, and in particular relates to a preparation process of a sunscreen synergistic composition, equipment and application thereof. Background Art
[0002] Synergistic sunscreen compositions are a type of cosmetic product that utilizes a scientific combination of multiple ingredients to synergistically enhance sun protection, optimize the user experience, and provide skincare benefits. Their core goal is to enhance UV protection through the synergistic effects of traditional sunscreens, while also improving product texture, reducing irritation, and providing additional skin care benefits.
[0003] When preparing existing sunscreen synergistic compositions, oil-phase raw materials and aqueous-phase raw materials must be added to a mixing tank for mixing and emulsification to ultimately form the desired skin care product. However, during this mixing process, due to the lower density of the oil-phase raw material, the oil-phase raw material floats on top of the aqueous raw material during the initial mixing phase, hindering proper mixing of the oil-phase raw materials and prolonging the mixing time.
[0004] Therefore, it is necessary to invent a preparation process of a sunscreen synergistic composition and its equipment and application to solve the above problems. Summary of the Invention
[0005] In response to the above problems, the present invention provides a preparation process of a sunscreen synergistic composition, an apparatus and an application thereof, to solve the problems raised in the above background technology.
[0006] To achieve the above objectives, the present invention provides the following technical solutions: a preparation process of a sunscreen synergistic composition, its equipment and application, comprising: A stirring tank is used to stir and mix the oil phase raw materials and the water phase raw materials; a partition plate disposed in the stirring tank for separating the oil phase raw material from the water phase raw material, wherein the bottom of the partition plate is connected to a first float; The guide device includes a guide plate, a second float, a baffle, a first screen and a stirring assembly. There are two guide devices. The guide plate is connected to the partition plate and is used to guide the oil phase raw material downward into the water phase raw material, and the top and bottom of the guide plate are of a through-type design. The second float is connected to the guide plate and is used to provide buoyancy for the guide plate. The baffle is connected to the top opening of the guide plate and is used to block the oil phase entering the guide plate. The first screen is connected to the bottom opening of the guide plate and is used to refine the oil phase raw material entering the guide plate. The stirring assembly is used to stir and mix the oil phase raw material and the water phase raw material.
[0007] Furthermore, the stirring assembly includes: A stirring shaft is arranged at the axis center of the stirring tank; A driving member connected to the top of the stirring shaft, used to drive the stirring shaft to rotate; An auger blade connected to the stirring shaft; A conveying cylinder is arranged inside the mixing tank and is provided with a feed hole for cooperating with the auger blades to convey the raw materials upward; A first stirring rod is connected to the conveying cylinder and is used to stir and mix the oil phase raw material and the water phase raw material; The transmission mechanism is arranged between the stirring shaft and the conveying cylinder, and is used to drive the conveying cylinder and the stirring shaft to rotate in opposite directions.
[0008] Furthermore, the transmission mechanism includes: A first gear connected to the stirring shaft; a gear ring connected to the conveying cylinder; The second gear is arranged between the first gear and the gear ring, and is used to drive the conveying cylinder to rotate in the opposite direction through the stirring shaft.
[0009] Furthermore, the partition plate is funnel-shaped, a through hole is opened through the middle position of the partition plate, and the diameter of the partition plate gradually decreases from top to bottom. The bottom edge of the through hole of the partition plate protrudes downward to form a sleeve, and the sleeve is movably sleeved on the top end of the conveying cylinder.
[0010] Furthermore, a second screen is connected to the top of the conveying cylinder, and the second screen is movably sleeved on the stirring shaft.
[0011] Furthermore, the guide plate is arranged at an angle, and a plurality of strip tubes are uniformly inserted through the guide plate, and the ends of the strip tubes are flush with the surface of the guide plate.
[0012] Furthermore, a plurality of second stirring rods are provided on the top of the second screen, the second stirring rods are connected to the stirring shaft, and shear rods are provided on the top and bottom of the second stirring rods, and the shear rods are connected to the sleeve.
[0013] Furthermore, a common protective cover is provided on the top of the first gear, the second gear and the gear ring, the protective cover is connected to the gear ring, and the protective cover is rotatably sleeved on the stirring shaft.
[0014] The present invention also provides a preparation process of a sunscreen synergistic composition, comprising the following steps: Step 1: Weighing: Weigh the physical sunscreen, chemical sunscreen, emulsifier, synergist, and oil according to the formula; Step 2: Pre-dispersion: Mix the physical sunscreen with a small amount of oil and disperse it at high speed using a homogenizer for 5 to 10 minutes to avoid clumping; Step 3: Heat and dissolve: Heat the oil phase component prepared in step 2 to 75 to 85°C and stir until completely dissolved or evenly dispersed; Step 4: Prepare the aqueous phase: Weigh the moisturizer, synergist, preservative, and pH adjuster and dissolve them in deionized water. Heat the aqueous phase to 75 to 85°C and stir until the ingredients are completely dissolved. Ensure a sterile environment and then add the prepared aqueous phase raw materials to the mixing tank. Step 5: Emulsification: While stirring, slowly pour the oil phase into the water phase in the mixing tank, maintain the temperature at 70 to 80°C, and continue stirring for 20 to 30 minutes; Step 6: Add active ingredients: Add heat-sensitive synergist, stir evenly, and then adjust the pH of the system to 5.5 to 6.5 with citric acid or triethanolamine; Step 7: After cooling to room temperature, fill into a light-proof container and seal for storage.
[0015] The present invention provides a preparation process of the sunscreen synergistic composition preparation equipment according to any one of the above embodiments, and its application in cosmetic emulsions, lotions, creams, and essences.
[0016] Technical effects and advantages of the present invention: 1. The present invention is provided with a guide plate and a separator. During the stirring and mixing process of the oil-phase raw material and the water-phase raw material, the guide plate can guide the oil-phase raw material floating on the top surface of the water-phase raw material to the bottom area of the separator under the drive of the stirring shaft, thereby allowing the oil-phase raw material to be immersed in the water-phase raw material for a longer period of time, promoting more complete contact between the oil-phase raw material and the water-phase raw material, and further cooperating with the stirring action of the stirring assembly to accelerate the mixing efficiency of the oil-phase raw material and the water-phase raw material. 2. The present invention is provided with a second stirring rod. When the water-phase raw material and the oil-phase raw material continuously pass through the second screen from bottom to top under the conveying action of the auger blade, the second screen can further cut and refine the water-phase raw material and the oil-phase raw material. Subsequently, when the cut and refined water-phase raw material and the oil-phase raw material move upward and contact the second stirring rod, the plurality of second stirring rods can stir and mix the cut and refined water-phase raw material and the oil-phase raw material under the drive of the stirring shaft, thereby improving the mixing efficiency of the water-phase raw material and the oil-phase raw material. 3. The present invention is provided with a shear rod. During the process of the second stirring rod stirring and mixing the water phase raw material and the oil phase raw material, when the second stirring rod continuously passes through the shear rods symmetrically distributed above and below, the upper and lower shear rods can cooperate with the second stirring rod to perform a shearing operation on the mixed water phase raw material and oil phase raw material, so that the mixed water phase raw material and oil phase raw material can be further cut into smaller particle sizes, thereby facilitating the rapid mixing of the water phase raw material and the oil phase raw material. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a three-dimensional cross-sectional view of the stirring tank of the present invention; Figure 3 is a three-dimensional cross-sectional view of the partition plate and the sleeve in the present invention; Figure 4 is a three-dimensional cross-sectional view of the guide plate of the present invention; Figure 5 It is a three-dimensional schematic diagram of the delivery pipe, stirring shaft and transmission mechanism in the present invention; Figure 6 It is a three-dimensional schematic diagram of the structures of the delivery pipe, stirring shaft, second stirring rod and second screen in the present invention; Figure 7 It is a three-dimensional schematic diagram of the structures such as the partition plate, the guide plate, the first screen and the shear rod in the present invention.
[0018] In the figure: 1. mixing tank; 2. partition plate; 3. first buoy; 4. guide plate; 5. second buoy; 6. baffle; 7. first screen; 8. mixing shaft; 9. driving member; 10. auger blade; 11. conveying cylinder; 12. first mixing rod; 13. first gear; 14. gear ring; 15. second gear; 16. sleeve; 17. second screen; 18. strip tube; 19. second mixing rod; 20. shear rod; 21. protective cover; 22. tank cover; 23. collar; 24. limit ring; 25. support ring; 26. reinforcement rod. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0020] The present invention provides Figures 1 to 7The preparation process of a sunscreen synergistic composition, its equipment and application are shown, comprising: a stirring tank 1, a partition plate 2 and a diversion device, wherein the stirring tank 1 is used to stir and mix the oil phase raw material and the water phase raw material, and a tank cover 22 is provided on the top of the stirring tank 1; the partition plate 2 is provided in the stirring tank 1, and is used to separate the oil phase raw material and the water phase raw material, and a first float 3 is connected to the bottom of the partition plate 2, and the number of the first floats 3 is two, and the buoyancy generated by the two first floats 3 is the same as the gravity of the partition plate 2, and the partition plate 2 is funnel-shaped. 2 is provided with a through hole in the middle position, and the diameter of the partition plate 2 gradually decreases from top to bottom. The top diameter of the partition plate 2 is the same as the inner diameter of the mixing tank 1. The bottom edge of the through hole of the partition plate 2 protrudes downward to form a sleeve 16, and the sleeve 16 is movably sleeved on the top of the conveying cylinder 11; the guide device includes a guide plate 4, a second float 5, a baffle 6, a first screen 7 and a stirring assembly. There are two guide devices. The guide plate 4 is obliquely inserted into the partition plate 2 to guide the oil phase raw material downward into the water phase raw material. The two guide plates 4 are connected The guide plate 4 is fixedly connected with the same collar 23, and the top and bottom of the guide plate 4 are through-type designs. A limit ring 24 is provided at the bottom of the collar 23. The limit ring 24 is fixedly sleeved on the stirring shaft 8 to limit the movement range of the guide plate 4 in the vertical direction. The top opening of the guide plate 4 is horizontally set. The second float 5 is fixedly connected to the bottom position of the top opening of the guide plate 4 to provide buoyancy for the guide plate 4. The top opening of the guide plate 4 can always be kept facing the liquid surface under the action of the second float 5. The top edge of the baffle 6 is hinged on the guide plate 4. In the top opening of the flow plate 4, the length of the baffle 6 matches the length of the top opening of the guide plate 4, the height of the baffle 6 is greater than the height of the top opening of the guide plate 4, and the bottom edge of the baffle 6 is inclined in the direction away from the top opening of the guide plate 4, which is used to block the oil phase entering the guide plate 4. The first screen 7 is connected to the bottom opening of the guide plate 4, and the size of the first screen 7 is the same as the size of the bottom opening of the guide plate 4, which is used to refine the oil phase raw material entering the guide plate 4. The stirring assembly is used to stir and mix the oil phase raw material and the water phase raw material; After the water phase raw material and the oil phase raw material are prepared, the stirring component is started to stir the water phase raw material in the stirring tank 1, and then the prepared oil phase raw material is slowly poured into the stirring tank 1. In the initial stage of the oil phase raw material being added to the water phase raw material, the oil phase raw material can float on the top surface of the water phase raw material. At the same time, the guide plate 4 can always float its top opening on the liquid surface under the buoyancy of the second float 5. At this time, as the stirring component drives the two guide plates 4 to perform circular motion, the oil phase raw material floating on the top surface of the water phase raw material and part of the water phase raw material can impact on the baffle 6, thereby making The bottom of the baffle 6 deflects upward, thereby opening the top opening of the guide plate 4. At this time, the oil-phase raw material and part of the water-phase raw material can enter the guide plate 4 through the top opening of the guide plate 4. Subsequently, the oil-phase raw material and part of the water-phase raw material entering the guide plate 4 can flow downward under the guidance of the guide plate 4. When the oil-phase raw material and the water-phase raw material come into contact with the first screen 7, the first screen 7 can cut and refine the oil-phase raw material and the water-phase raw material, thereby cutting the oil-phase raw material and the water-phase raw material into smaller particle sizes, thereby making it easier for the oil-phase raw material and the water-phase raw material to be fused together. When the oil phase raw material and the water phase raw material after being cut and refined are moved out of the guide plate 4 through the bottom of the guide plate 4, the stirring component can stir and mix the oil phase raw material and the water phase raw material after being cut and refined, thereby accelerating the mixing efficiency of the oil phase raw material and the water phase raw material; In addition, due to the presence of the partition plate 2, when the oil phase raw material enters the area at the bottom of the partition plate 2 under the guidance of the guide plate 4, the partition plate 2 can restrict the oil phase raw material, so that the oil phase raw material can be immersed in the water phase raw material for a longer time, thereby promoting the oil phase raw material and the water phase raw material to be able to contact more fully, and then cooperate with the stirring action of the stirring component to accelerate the mixing efficiency of the oil phase raw material and the water phase raw material.
[0021] like Figures 2 to 6As shown, the stirring assembly includes: a stirring shaft 8, a driving member 9, an auger blade 10, a conveying cylinder 11, a first stirring rod 12 and a transmission mechanism. The stirring shaft 8 is arranged at the axis center of the stirring tank 1, and the sleeve 23 is slidably sleeved on the stirring shaft 8. The stirring shaft 8 rotates and is inserted into the tank cover 22, and the bottom end of the stirring shaft 8 is rotatably connected to the center position of the bottom inner wall of the stirring tank 1; the driving member 9 can be a motor, and the driving member 9 is transmission-connected to the top of the stirring shaft 8 for driving the stirring shaft 8 to rotate; the auger blade 10 is connected to the stirring shaft 8; the conveying cylinder 11 is arranged inside the stirring tank 1, the conveying cylinder 11 is sleeved on the outside of the stirring shaft 8, the auger blade 10 is located inside the conveying cylinder 11, and the diameter of the auger blade 10 matches the inner diameter of the conveying cylinder 11, and a support ring 25 is rotatably sleeved on the conveying cylinder 11, and a plurality of reinforcement rods 26 are fixedly connected between the support ring 25 and the inner wall of the side of the stirring tank 1. Through the cooperation of the support ring 25 and the reinforcement rod 26, the conveying cylinder 11 drives the first stirring rod 12 to rotate. The gear ring 14 is fixedly connected to the bottom end of the conveying cylinder 11, and the gear ring 14 is rotatably connected to the bottom inner wall of the mixing tank 1; the number of the second gear 15 is multiple, and the multiple second gears 15 are evenly distributed in an annular manner between the first gear 13 and the gear ring 14, and the second gear 15 is installed on the inner wall of the bottom of the mixing tank 1, and is used to drive the conveying cylinder 11 to rotate in the opposite direction through the stirring shaft 8; By providing a stirring assembly, when the driving member 9 drives the stirring shaft 8 to rotate, the stirring shaft 8 can drive the first gear 13 to rotate. As the first gear 13 rotates, the first gear 13 can drive the gear ring 14 and the conveying cylinder 11 to rotate in the opposite direction to the stirring shaft 8 through the second gear 15. During this process, the first stirring rod 12 connected to the surface of the conveying cylinder 11 can move together with the conveying cylinder 11, thereby stirring the water-phase raw material and the oil-phase raw material in the stirring tank 1, thereby accelerating the fusion of the water-phase raw material and the oil-phase raw material; During the rotation of the stirring shaft 8, the auger blade 10 connected to the stirring shaft 8 can move together with the stirring shaft 8, thereby cooperating with the conveying cylinder 11 to continuously suck the water-phase raw materials and oil-phase raw materials at the bottom of the partition plate 2 into the conveying cylinder 11 through the feed hole. Subsequently, the water-phase raw materials and oil-phase raw materials entering the conveying cylinder 11 can continue to move upward under the action of the auger blade 10, and finally move to the top area of the partition plate 2, finally realizing the vertical circulation of the water-phase raw materials and the oil-phase raw materials in the stirring tank 1, and then cooperating with the stirring effect of the first stirring rod 12 on the water-phase raw materials and the oil-phase raw materials, thereby improving the mixing efficiency of the water-phase raw materials and the oil-phase raw materials.
[0022] like Figure 4 As shown, the guide plate 4 is arranged at an angle, and a plurality of strip tubes 18 are uniformly inserted through the guide plate 4, and the ends of the strip tubes 18 are flush with the surface of the guide plate 4; By providing the strip tube 18 , when the guide plate 4 rotates along with the stirring shaft 8 , the presence of the strip tube 18 can reduce the contact area between the guide plate 4 and the water-phase raw material and the oil-phase raw material, thereby reducing the resistance encountered by the guide plate 4 during rotation.
[0023] like Figures 3 to 7 As shown, a second screen 17 matching the top opening of the conveying cylinder 11 is detachably mounted on the top of the conveying cylinder 11, and the second screen 17 is movably sleeved on the stirring shaft 8. A plurality of second stirring rods 19 are horizontally distributed in an annular shape on the top of the second screen 17. The second stirring rods 19 are vertically fixedly connected to the surface of the stirring shaft 8. Shear rods 20 are horizontally symmetrically arranged on the top and bottom of the second stirring rod 19. The shear rods 20 are vertically fixedly connected to the inner wall of the sleeve 16, and the shear rods 20 located at the top and bottom of the second stirring rod 19 are respectively close to the bottom of the top of the second stirring rod 19; By providing the second stirring rod 19, when the water-phase raw material and the oil-phase raw material continuously pass through the second screen 17 from bottom to top under the conveying action of the auger blade 10, the second screen 17 can further cut and refine the water-phase raw material and the oil-phase raw material. Subsequently, when the cut and refined water-phase raw material and the oil-phase raw material move upward and contact the second stirring rod 19, the plurality of second stirring rods 19 can stir and mix the cut and refined water-phase raw material and the oil-phase raw material under the drive of the stirring shaft 8, thereby improving the mixing efficiency of the water-phase raw material and the oil-phase raw material; In addition, by providing a shear rod 20, during the process of the second stirring rod 19 stirring and mixing the water phase raw material and the oil phase raw material, when the second stirring rod 19 continuously passes through the shear rods 20 symmetrically distributed above and below, the upper and lower shear rods 20 can cooperate with the second stirring rod 19 to perform shearing operations on the mixed water phase raw material and oil phase raw material, so that the mixed water phase raw material and oil phase raw material can be further cut into smaller particle sizes, thereby facilitating the rapid mixing of the water phase raw material and the oil phase raw material.
[0024] like Figure 6 As shown, the top of the first gear 13, the second gear 15 and the gear ring 14 are provided with a same protective cover 21, the protective cover 21 is detachably connected to the top of the gear ring 14, and the protective cover 21 is rotatably sleeved on the stirring shaft 8; By providing the protective cover 21, during the process of mixing the aqueous phase raw materials and the oil phase raw materials, the protective cover 21 can protect the first gear 13, the second gear 15 and the gear ring 14, preventing the mixed emulsion from entering the inner side of the gear ring 14, thereby causing the emulsion to accumulate inside the gear ring 14.
[0025] The present invention also provides a preparation process of a sunscreen synergistic composition, comprising the following steps: Step 1. Weighing: Weigh the physical sunscreen (such as zinc oxide), chemical sunscreen (such as octocrylene), emulsifier (such as glyceryl stearate), synergist (such as vitamin E), and oil (such as caprylic or capric triglyceride) according to the formula; Step 2: Pre-dispersion: Mix the physical sunscreen with a small amount of oil and disperse it in a homogenizer at high speed (e.g. 2000 to 3000 rpm) for 5 to 10 minutes to avoid agglomeration. Step 3: Heat and dissolve: Heat the oil phase component prepared in step 2 to 75 to 85°C and stir until completely dissolved or evenly dispersed; Step 4: Prepare the aqueous phase: Weigh a moisturizer (such as glycerin), a synergist (such as water-soluble bisabolol), a preservative, and a pH adjuster and dissolve them in deionized water. Heat the aqueous phase to 75 to 85°C and stir until the ingredients are completely dissolved. Ensure a sterile environment. Then, add the prepared aqueous phase raw materials to mixing tank 1. Step 5: Emulsification: While stirring, slowly pour the oil phase into the water phase in the mixing tank 1, maintain the temperature at 70 to 80°C, and continue stirring for 20 to 30 minutes; Step 6. Add active ingredients: Add heat-sensitive enhancers (such as plant extracts, hyaluronic acid), stir well, and then use citric acid or triethanolamine to adjust the system pH to 5.5 to 6.5 (close to the skin's acid-base environment); Step 7: After cooling to room temperature, fill into a light-proof container and seal for storage.
[0026] The present invention provides a preparation process of the sunscreen synergistic composition preparation equipment according to any one of the above embodiments, and its application in cosmetic emulsions, lotions, creams, and essences.
[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.
Claims
1. A sunscreen synergistic composition preparation device, characterized in that: include: A stirring tank (1) is used to stir and mix the oil phase raw material and the water phase raw material; A partition plate (2) is provided in the stirring tank (1) and is used to separate the oil phase raw material and the water phase raw material. The bottom of the partition plate (2) is connected to a first float (3); The guide device comprises a guide plate (4), a second float (5), a baffle (6), a first screen (7) and a stirring assembly. The number of the guide devices is two. The guide plate (4) is connected to the partition plate (2) and is used to guide the oil phase raw material downward into the water phase raw material. The top and bottom of the guide plate (4) are through-type. The second float (5) is connected to the guide plate (4) and is used to provide buoyancy for the guide plate (4). The baffle (6) is connected to the top opening of the guide plate (4) and is used to block the oil phase entering the guide plate (4). The first screen (7) is connected to the bottom opening of the guide plate (4) and is used to refine the oil phase raw material entering the guide plate (4). The stirring assembly is used to stir and mix the oil phase raw material and the water phase raw material.
2. The sunscreen synergistic composition preparation equipment according to claim 1, characterized in that: The stirring assembly comprises: A stirring shaft (8) is arranged at the axis center of the stirring tank (1); A driving member (9) connected to the top of the stirring shaft (8) and used to drive the stirring shaft (8) to rotate; An auger blade (10) connected to the stirring shaft (8); A conveying cylinder (11) is arranged inside the mixing tank (1), and a feed hole is provided on the conveying cylinder (11) for cooperating with the auger blade (10) to convey the raw materials upward; A first stirring rod (12) is connected to the conveying cylinder (11) and is used to stir and mix the oil phase raw material and the water phase raw material; The transmission mechanism is arranged between the stirring shaft (8) and the conveying cylinder (11), and is used to drive the conveying cylinder (11) and the stirring shaft (8) to rotate in opposite directions.
3. The sunscreen synergistic composition preparation equipment according to claim 2, characterized in that: The transmission mechanism comprises: A first gear (13) connected to the stirring shaft (8); A gear ring (14) connected to the conveying cylinder (11); The second gear (15) is arranged between the first gear (13) and the gear ring (14), and is used to drive the conveying cylinder (11) to rotate in the opposite direction via the stirring shaft (8).
4. The preparation equipment of the sunscreen synergistic composition according to claim 3, characterized in that: The partition plate (2) is funnel-shaped, a through hole is provided in the middle of the partition plate (2), and the diameter of the partition plate (2) gradually decreases from top to bottom. The bottom edge of the through hole of the partition plate (2) protrudes downward to form a sleeve (16), and the sleeve (16) is movably sleeved on the top end of the conveying cylinder (11).
5. The preparation equipment of the sunscreen synergistic composition according to claim 4, characterized in that: The top end of the conveying cylinder (11) is connected to a second screen (17), and the second screen (17) is movably sleeved on the stirring shaft (8).
6. The preparation equipment of the sunscreen synergistic composition according to claim 5, characterized in that: The guide plate (4) is arranged in an inclined manner, and a plurality of strip tubes (18) are uniformly inserted through the guide plate (4), and the ends of the strip tubes (18) are flush with the surface of the guide plate (4).
7. The equipment for preparing the sunscreen synergistic composition according to claim 6, characterized in that: A plurality of second stirring rods (19) are provided on the top of the second screen (17), and the second stirring rods (19) are connected to the stirring shaft (8). Shear rods (20) are provided on the top and bottom of the second stirring rods (19), and the shear rods (20) are connected to the sleeve (16).
8. The equipment for preparing the sunscreen synergistic composition according to claim 7, characterized in that: The first gear (13), the second gear (15) and the top of the gear ring (14) are provided with a same protective cover (21), the protective cover (21) is connected to the gear ring (14), and the protective cover (21) is rotatably sleeved on the stirring shaft (8).
9. A preparation process using the sunscreen synergistic composition preparation equipment according to claim 8, characterized in that: The following steps are involved: Step 1: Weighing: Weigh the physical sunscreen, chemical sunscreen, emulsifier, synergist, and oil according to the formula; Step 2: Pre-dispersion: Mix the physical sunscreen with a small amount of oil and disperse it at high speed using a homogenizer for 5 to 10 minutes to avoid clumping; Step 3: Heat and dissolve: Heat the oil phase component prepared in step 2 to 75 to 85°C and stir until completely dissolved or evenly dispersed; Step 4: Preparation of aqueous phase: Weigh the moisturizer, synergist, preservative, and pH adjuster and dissolve them in deionized water. Heat the aqueous phase to 75 to 85°C and stir until the ingredients are completely dissolved. Ensure a sterile environment and then add the prepared aqueous phase raw materials to the mixing tank (1). Step 5: Emulsification: While stirring, slowly pour the oil phase into the water phase raw material in the stirring tank (1), maintain the temperature at 70 to 80°C, and continue stirring for 20 to 30 minutes; Step 6: Add active ingredients: Add heat-sensitive synergist, stir evenly, and then adjust the pH of the system to 5.5 to 6.5 with citric acid or triethanolamine; Step 7: After cooling to room temperature, fill into a light-proof container and seal for storage.
10. An application of a preparation process using the sunscreen synergistic composition preparation equipment according to claim 9, characterized in that: Used in emulsions, water, creams and essences in cosmetics.