Moisturizing hand cream and preparation method thereof

Abstract

The invention relates to the technical field of production of moisturizing hand cream products, in particular to moisturizing hand cream and a preparation method thereof.The moisturizing hand cream is prepared from, by mass, 8-12 parts of glycerinum, 6-10 parts of vaseline, 3-7 parts of allantoin, 5-9 parts of shea butter and 2-6 parts of vitamin E. The preparation method includes the steps that the moisturizing hand cream is prepared, the moisturizing hand cream is prepared through the preparation device of the moisturizing hand cream, discharging of materials and water for water bath is facilitated by arranging a discharging structure, a discharging pipe and a water outlet pipe, and by means of the design of the discharging structure, a second motor is used for driving a rotating block and an extrusion wheel to alternately extrude a discharging hose forwards and backwards; the discharging speed of vaseline and shea butter with high viscosity is effectively increased, the problem that the production progress is affected due to slow discharging is solved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of production of moisturizing hand cream products, in particular to a moisturizing hand cream and a preparation method thereof. Background Art

[0002] Glycerin has good moisturizing and hygroscopic properties and can help the skin retain moisture. Vaseline can form a protective film on the skin surface to prevent water loss. Allantoin can promote skin repair. Shea butter is rich in nutrients such as unsaturated fatty acids and has a significant effect on moisturizing the skin. Vitamin E has an antioxidant effect and helps protect the skin of the hands from free radical damage. Multiple ingredients work synergistically to moisturize the hands. In modern society, as people's awareness of hand skin care continues to increase, hand cream has become a must-have for daily skin care, especially for people who are in a dry environment for a long time, wash their hands frequently, or engage in work with high hand labor intensity. The demand for moisturizing hand cream is more urgent. In addition, consumers' preference for natural, mild and effective skin care products is increasing. Moisturizing hand creams composed of natural or mild ingredients such as glycerin, vaseline, allantoin, shea butter and vitamin E can meet multiple skin care needs such as moisturizing, repairing and anti-oxidation. They occupy an extremely important position in the hand cream market and are widely used in the research and development and production of various hand cream products.

[0003] A Chinese patent with patent announcement number CN115445478B discloses a mixed water bath integrated pot for making dispersed emulsions, which belongs to the field of dispersed emulsion preparation, and includes a water bath heating pot and a water bath pot cover. A driving motor is fixedly installed on the top of the water bath pot cover through a frame, and a transmission shaft fixedly connected to the output shaft of the driving motor is rotatably connected to the center of the water bath pot cover through a bearing. A storage bin is provided inside the water bath pot cover, and a discharge trough is provided at the bottom of the storage bin. A limited position bin is fixedly installed at the bottom of the water bath pot cover.

[0004] Although the above technical solution drives the continuous discharge of the material from the storage bin through the rotation of the transmission shaft, each time the mixed solution can be quickly dissolved and mixed with the stirring and flow to avoid precipitation, which significantly improves the mixing efficiency and speed, and the solution inside the water bath heating pot can be made to flow and circulate through the stirring mixing plate to avoid solution stratification, and the stirring of the stirring blade can significantly improve the mixing efficiency of the dispersed emulsion, however, after the vaseline and shea butter of the present application are mixed, the viscosity is relatively large, which greatly reduces the discharge speed, thereby reducing the preparation efficiency of the moisturizing hand cream from the side. Summary of the invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a moisturizing hand cream and a preparation method thereof. By setting a discharging structure, the discharging speed of vaseline and shea butter with high viscosity is effectively accelerated, avoiding the problem of slow discharging affecting the production progress.

[0006] Technical solution: A moisturizing hand cream is composed of the following ingredients in parts by mass: 8-12 parts of glycerin, 6-10 parts of vaseline, 3-7 parts of allantoin, 5-9 parts of shea butter and 2-6 parts of vitamin E.

[0007] Further description, wherein the ingredients include 10 parts of glycerin, 8 parts of vaseline, 5 parts of allantoin, 7 parts of shea butter and 4 parts of vitamin E.

[0008] A method for preparing a moisturizing hand cream. The moisturizing hand cream is prepared by a moisturizing hand cream preparation device. The moisturizing hand cream preparation device comprises a water bath, a bracket, a top cover and a motor. The brackets are fixedly installed on both sides of the water bath. The top of the water bath is connected to the top cover. The inside of the water bath is rotatably connected to a stirring rod. The top of the top cover is fixedly connected to the motor. The output shaft of the motor passes through the bottom of the top cover and is fixedly connected to the stirring rod. The top of the top cover is fixedly connected to a feeding pipe connected to the inside of the water bath. A water bath interlayer is provided inside the water bath. A sealing ring plugged into the water bath interlayer is connected to the top of the water bath. The top of the sealing ring is fixedly connected to a water inlet pipe connected to the inside of the water bath interlayer.

[0009] Further explanation, the specific preparation steps are as follows: ① glycerin, vaseline, allantoin, shea butter and vitamin E are weighed as raw materials according to the formula amount, vaseline and shea butter are placed in a water bath through a feed pipe, and then 70-80° C. water is injected into the water bath interlayer through a water inlet pipe, and then a motor is started to drive a stirring rod to rotate, so that the vaseline and shea butter are heated, melted and mixed; ② Add the melted vaseline and shea butter together with glycerin, allantoin and vitamin E into a stirring container, and stir at a speed of 400-600 rpm for 15-25 minutes until the mixture is evenly mixed; ③ Add 0.3-0.8% carbomer thickener to the stirred mixture and continue stirring for 10-15 minutes to fully disperse it; ④ Use triethanolamine to adjust the pH value of the system to 6-7, then add 0.5-1.2% of the preservative benzyl alcohol and 0.2-0.5% of the flavor by mass fraction, and stir for 5-10 minutes; ⑤ Transfer the mixture to a homogenizer and homogenize for 10-15 minutes at a homogenization pressure of 15-20 MPa; ⑥ Degas the homogenized material to remove the bubbles therein, and then discharge the material into cans to obtain the moisturizing hand cream.

[0010] It is further explained that the preparation device of the moisturizing hand cream also includes a discharge pipe and a water outlet pipe for discharging materials. The discharge pipe is fixedly connected to the bottom of the water bath pot, and the water bath interlayer is fixedly connected to the bottom of the water bath pot.

[0011] Further description, the preparation device of the moisturizing hand cream also includes a discharging structure for increasing the discharge speed of the water bath pot, the discharging structure includes a discharging hose and a rotating block, the bottom of the water bath pot is fixedly connected to a fixed box, the discharging hose is placed inside the fixed box, and one end of the discharging hose is fixedly connected to the bottom of the discharging pipe, the other end of the discharging hose passes through the bottom of the fixed box, the discharging hose is arranged in a C shape inside the fixed box, the rotating block is rotatably connected to the inside of the fixed box, the inside of the rotating block passes through the top and the bottom and is rotatably connected to an extrusion wheel, and the extrusion wheel and the discharging hose squeeze each other.

[0012] Further description, the preparation device of the moisturizing hand cream also includes a second motor for driving the rotating block to rotate, and the second motor is fixedly connected to one side of the fixed box, and the output shaft of the second motor passes through the interior of the fixed box and is fixedly connected to the rotating block.

[0013] Further explanation, the preparation device of the moisturizing hand cream also includes a scale cleaning structure for cleaning scale inside the water bath interlayer, the scale cleaning structure includes a scraper, the scraper is slidably connected to the inside of the water bath interlayer, the bottom of the sealing ring passes through the top to open a slot, the top of the scraper passes through the top of the slot and is fixedly connected to a connecting block, the bottom of the connecting block and the outer surface of the water bath are fixedly connected to a connecting rod, the outer surface of the connecting rod is fixedly connected to a sliding block, the sliding block is slidably connected to the outer surface of the water bath, the outer surface of the water bath and the bottom of the connecting rod are rotatably connected to a rotating ring, the bottom of the rotating ring is opened with a bevel tooth groove, the outer surface of the water bath and the bottom of the rotating ring are rotatably connected to a rotating shaft, one end of the rotating shaft is fixedly connected to a bevel gear, the bevel gear is meshed with the rotating ring through the bevel tooth groove, and the connection between the bracket and the water bath is located at the bottom of the rotating ring.

[0014] Further description, the preparation device of the moisturizing hand cream also includes a pulley for driving the rotating shaft to rotate, the other side of the fixed box is rotatably connected to a connecting shaft, the bottom of the water bath is fixedly connected to a support block, the connecting shaft passes through the support block, the outer surface of the connecting shaft is rotatably connected to a pulley at one end, and the outer surface of the rotating shaft is also fixedly connected to a pulley at one end, a belt is sleeved between the two pulleys, and the other end of the connecting shaft passes through the interior of the fixed box and is fixedly connected to the rotating block.

[0015] Further explanation, the preparation device of the moisturizing hand cream also includes a switching structure for driving the bottom pulley to rotate, the switching structure includes a fixed ring, a movable ring and a docking ring, the fixed ring is fixedly connected to the outer surface of the connecting shaft, the movable ring is slidably connected to the outer surface of the connecting shaft and is located on one side of the fixed ring, the docking ring is rotatably connected to the outer surface of the connecting shaft and is located on one side of the movable ring, the docking ring is meshed with the movable ring, one side of the fixed ring and the outer surface of the connecting shaft are fixedly connected with a plurality of fixed rods, one end of the fixed rod passes through the interior of the movable ring, a spring is fixedly connected between the movable ring and the fixed ring and on the outer surface of each fixed rod, the outer surface of the movable ring is rotatably connected with a toggle ring, the outer surface of the toggle ring and the outer surface of the fixed ring are symmetrically fixedly connected with two fixed blocks on one side, a screw is threadedly connected between the two fixed blocks at the front, a guide rod is slidably connected between the two fixed blocks at the rear, and one side of the docking ring is fixedly connected to the pulley near the bottom.

[0016] The above embodiments of the present invention can achieve the following beneficial effects: 1. By setting the discharging structure, the discharging pipe and the water discharging pipe are set to facilitate the discharge of materials and water for water bath. The design of the discharging structure uses the second motor to drive the rotating block and the extrusion wheel to perform positive and negative alternating extrusion on the discharging hose, which effectively speeds up the discharging speed of vaseline and shea butter with high viscosity, avoids the problem of slow discharging affecting the production progress, and improves the production efficiency; 2. By setting up a scale cleaning structure, the scale cleaning structure can conveniently clean the scale in the water bath interlayer when needed. Through the coordinated action of the rotating ring, scraper and other components, the scale adhering to the inner wall of the water bath interlayer can be scraped off and discharged, which helps to maintain the heat transfer efficiency and cleanliness of the water bath pot, extend the service life of the equipment, and reduce the problem of uneven heating caused by scale accumulation, thereby ensuring the accuracy of temperature control during the preparation of hand cream; 3. By setting up a switching structure, the switching structure enables motor 2 to flexibly switch between driving the discharging structure and driving the scale cleaning structure, which not only meets the demand for rapid discharging during normal production, but also can conveniently start the scale cleaning function during equipment maintenance and cleaning, thereby improving the versatility and operational convenience of the equipment, reducing the operational complexity and maintenance cost of the equipment, and overall improving the practicality and reliability of the moisturizing hand cream preparation device, which is conducive to the industrial large-scale production of moisturizing hand cream. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a diagram showing the internal structure of the water bath pot after the top cover of the present invention is disassembled.

[0019] Figure 3It is a disassembly diagram of the discharging structure of the present invention.

[0020] Figure 4 This is a rear perspective view showing the scale cleaning structure after the sealing ring of the present invention is disassembled.

[0021] Figure 5 This is a rear perspective view of the switching structure of the present invention.

[0022] Figure 6 For the present invention Figure 5 Enlarged view of part A.

[0023] Figure 7 This is a bottom perspective view of the overall structure of the present invention.

[0024] Figure 8 This is a diagram showing the structures of the movable ring, fixed ring and docking ring of the present invention.

[0025] Fig. 9 For the present invention Figure 8 Enlarged view of part B.

[0026] In the above drawings: 1. water bath pot; 2. bracket; 3. top cover; 4. motor 1; 5. feed pipe; 6. sealing ring; 7. discharge structure; 8. scale cleaning structure; 9. water bath interlayer; 10. water inlet pipe; 11. stirring rod; 12. discharge pipe; 13. fixed box; 14. discharge hose; 15. rotating block; 16. extrusion wheel; 17. motor 2; 18. water outlet pipe; 19. scraper; 20. connecting block; 21. connecting rod; 22. sliding block; 23. rotating ring; 24. bevel gear; 25. slot; 26. switching structure; 27. connecting shaft; 28. pulley; 29. ​​belt; 30. fixed ring; 31. moving ring; 32. toggle ring; 33. support block; 34. rotating shaft; 35. docking ring; 36. fixed block; 37. screw; 38. guide rod; 39. fixed rod; 40. spring. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0028] Embodiment 1: A moisturizing hand cream is composed of the following ingredients in parts by mass: 8-12 parts of glycerin, 6-10 parts of vaseline, 3-7 parts of allantoin, 5-9 parts of shea butter and 2-6 parts of vitamin E.

[0029] Among them, it contains 10 parts of glycerin, 8 parts of vaseline, 5 parts of allantoin, 7 parts of shea butter and 4 parts of vitamin E.

[0030] Embodiment 2: On the basis of embodiment 1, a method for preparing a moisturizing hand cream is provided, wherein the moisturizing hand cream is prepared by a moisturizing hand cream preparation device, wherein the moisturizing hand cream preparation device comprises a water bath 1, a bracket 2, a top cover 3 and a motor 4, brackets 2 are fixedly installed on both sides of the water bath 1, the top of the water bath 1 is connected to the top of the top cover 3, a stirring rod 11 is rotatably connected to the inside of the water bath 1, a motor 4 is fixedly connected to the top of the top cover 3, an output shaft of the motor 4 passes through the bottom of the top cover 3 and is fixedly connected to the stirring rod 11, a feed pipe 5 connected to the inside of the water bath 1 is fixedly connected to the top of the top cover 3, a water bath interlayer 9 is provided inside the water bath 1, a sealing ring 6 plugged into the water bath interlayer 9 is connected to the top of the water bath 1, and a water inlet pipe 10 connected to the inside of the water bath interlayer 9 is fixedly connected to the top of the sealing ring 6.

[0031] The specific preparation steps are as follows: 1. weigh glycerin, vaseline, allantoin, shea butter and vitamin E as raw materials according to the formula amount, place vaseline and shea butter in a water bath 1 through a feed pipe 5, then inject 70-80° C. water into the water bath interlayer 9 through a water inlet pipe 10, then start a motor 4 to drive a stirring rod 11 to rotate, so that the vaseline and shea butter are heated, melted and mixed; ② Add the melted vaseline and shea butter together with glycerin, allantoin and vitamin E into a stirring container, and stir at a speed of 400-600 rpm for 15-25 minutes until the mixture is evenly mixed; ③ Add 0.3-0.8% carbomer thickener to the stirred mixture and continue stirring for 10-15 minutes to fully disperse it; ④ Use triethanolamine to adjust the pH value of the system to 6-7, then add 0.5-1.2% of the preservative benzyl alcohol and 0.2-0.5% of the flavor by mass fraction, and stir for 5-10 minutes; ⑤ Transfer the mixture to a homogenizer and homogenize for 10-15 minutes at a homogenization pressure of 15-20 MPa; ⑥ Degas the homogenized material to remove the bubbles therein, and then discharge the material into cans to obtain the moisturizing hand cream.

[0032] The preparation device of moisturizing hand cream also includes a discharge pipe 12 and a water outlet pipe 18 for discharging materials. The discharge pipe 12 is fixedly connected to the bottom of the water bath pot 1, and the water bath interlayer 9 is fixedly connected to the bottom of the water bath pot 1.

[0033] In step ①, after the vaseline and shea butter are heated, melted and mixed, the discharge pipe 12 can be opened to discharge them from the water bath pot 1, and the water outlet pipe 18 can be opened to discharge the water inside the water bath interlayer 9.

[0034] Embodiment 3, on the basis of embodiment 2, as Figure 3 As shown, the preparation device of the moisturizing hand cream also includes a discharge structure 7 for increasing the discharge speed of the water bath 1, the discharge structure 7 includes a discharge hose 14 and a rotating block 15, the bottom of the water bath 1 is fixedly connected with a fixed box 13, the discharge hose 14 is placed inside the fixed box 13, and one end of the discharge hose 14 is fixedly connected to the bottom of the discharge pipe 12, the other end of the discharge hose 14 passes through the bottom of the fixed box 13, the discharge hose 14 is arranged in a C shape inside the fixed box 13, the rotating block 15 is rotatably connected to the inside of the fixed box 13, the inside of the rotating block 15 passes through the top and the bottom and is rotatably connected with an extrusion wheel 16, and the extrusion wheel 16 and the discharge hose 14 squeeze each other.

[0035] Start the second motor 17 to drive the rotating block 15 to rotate, thereby driving the two extrusion wheels 16 to rotate together and squeeze the discharge hose 14, so that the discharge hose 14 is squeezed and relaxed in a positive and negative alternating manner. Since the discharge hose 14 has a rebound force, the connection end of the discharge hose 14 and the discharge pipe 12 naturally rebounds as the extrusion wheel 16 leaves, and the connection end generates negative pressure and sucks in the mixed vaseline and shea butter. As the rotating block 15 continues to rotate, the material inside the discharge hose 14 can be completely discharged, thereby accelerating the discharge speed of the water bath 1, and avoiding the situation where the discharge is slow due to the excessive viscosity of the mixed vaseline and shea butter.

[0036] See also Figure 3 The preparation device of the moisturizing hand cream also includes a motor 17 for driving the rotating block 15 to rotate. The motor 17 is fixedly connected to one side of the fixed box 13. The output shaft of the motor 17 passes through the interior of the fixed box 13 and is fixedly connected to the rotating block 15. Embodiment 4: Based on embodiment 2, Figure 4 and Figure 7 As shown, the preparation device of the moisturizing hand cream also includes a scale cleaning structure 8 for cleaning scale inside the water bath interlayer 9, the scale cleaning structure 8 includes a scraper 19, the scraper 19 is slidably connected to the inside of the water bath interlayer 9, the bottom of the sealing ring 6 passes through the top to open a slot 25, the top of the scraper 19 passes through the top of the slot 25 and is fixedly connected with a connecting block 20, the bottom of the connecting block 20 and the outer surface of the water bath 1 are fixedly connected with a connecting rod 21, the outer surface of the connecting rod 21 is fixedly connected with a sliding block 22, the sliding block 22 is slidably connected to the outer surface of the water bath 1, the outer surface of the water bath 1 and the bottom of the connecting rod 21 are rotatably connected with a rotating ring 23, the bottom of the rotating ring 23 is opened with a bevel tooth groove, the outer surface of the water bath 1 and the bottom of the rotating ring 23 are rotatably connected with a rotating shaft 34, one end of the rotating shaft 34 is fixedly connected with a bevel gear 24, the bevel gear 24 is meshed with the rotating ring 23 through the bevel tooth groove, and the connection between the bracket 2 and the water bath 1 is located at the bottom of the rotating ring 23.

[0037] Open the sealing ring 6 so that the top of the water bath interlayer 9 is in an open state. At this time, the rotating shaft 34 is rotated to drive the bevel gear 24 to rotate, and then the rotating ring 23 is driven to rotate through the bevel tooth groove, driving the connecting rod 21 and the sliding block 22 to rotate along the outer surface of the water bath pot 1, and then the scraper 19 is driven to rotate along the inside of the water bath interlayer 9 through the connecting block 20, so that the scale adhering to the inner wall of the water bath interlayer 9 can be scraped off, and then the water outlet pipe 18 is opened to discharge the scraped scale.

[0038] See also Figure 6 and Figure 7 The preparation device of moisturizing hand cream also includes a pulley 28 for driving the rotating shaft 34 to rotate, the other side of the fixed box 13 is rotatably connected with a connecting shaft 27, the bottom of the water bath 1 is fixedly connected with a supporting block 33, the connecting shaft 27 passes through the supporting block 33, the outer surface of the connecting shaft 27 is rotatably connected with the pulley 28 at one end, and the outer surface of the rotating shaft 34 is also fixedly connected with the pulley 28 at one end, a belt 29 is sleeved between the two pulleys 28, and the other end of the connecting shaft 27 passes through the interior of the fixed box 13 and is fixedly connected to the rotating block 15.

[0039] On the basis of Example 3 and Example 4, Figure 5 , Figure 6 , Figure 8 and Fig. 9 As shown, the preparation device of the moisturizing hand cream also includes a switching structure 26 driven by a bottom pulley 28, the switching structure 26 includes a fixed ring 30, a movable ring 31 and a docking ring 35, the fixed ring 30 is fixedly connected to the outer surface of the connecting shaft 27, the movable ring 31 is slidably connected to the outer surface of the connecting shaft 27 and is located on one side of the fixed ring 30, the docking ring 35 is rotatably connected to the outer surface of the connecting shaft 27 and is located on one side of the movable ring 31, the docking ring 35 is meshed with the movable ring 31, and one side of the fixed ring 30 and the outer surface of the connecting shaft 27 are fixedly connected to a plurality of fixed rods 39, one end of the fixed rod 39 passes through the interior of the movable ring 31, a spring 40 is fixedly connected between the movable ring 31 and the fixed ring 30 and on the outer surface of each fixed rod 39, the outer surface of the movable ring 31 is rotatably connected to the toggle ring 32, the outer surface of the toggle ring 32 and the outer surface of the fixed ring 30 are symmetrically fixedly connected to two fixed blocks 36 on one side, a screw 37 is threadedly connected between the two fixed blocks 36 at the front, a guide rod 38 is slidably connected between the two fixed blocks 36 at the rear, and one side of the docking ring 35 is fixedly connected to the pulley 28 at the bottom.

[0040] Under normal circumstances, the motor 2 17 is started to drive the rotating block 15 to rotate, and at the same time, the connecting shaft 27 is driven to rotate, and then the fixed ring 30 is driven to rotate, and then the mobile ring 31 is driven to rotate through a plurality of fixed rods 39. However, since the docking ring 35 and the mobile ring 31 are not engaged and docked at this time, the rotation of the mobile ring 31 cannot drive the docking ring 35 to rotate, and then the pulley 28 near the bottom cannot be driven to rotate, and then the rotation shaft 34 cannot be driven to rotate; When it is necessary to start the scale cleaning structure 8 by rotating the rotating shaft 34, rotate the screw 37 to drive the movable ring 31 to slide along the outer surface of the connecting shaft 27 through the fixed block 36 until the docking ring 35 and the movable ring 31 are engaged and docked. At this time, the starting motor 17 drives the rotating block 15 to rotate while driving the connecting shaft 27 to rotate, which can drive the movable ring 31 to rotate together, and then drive the docking ring 35 and even the pulley 28 at the bottom to rotate together, and then drive the pulley 28 at the top to rotate together through the belt 29, which can drive the rotating shaft 34 to rotate, and then drive the scale cleaning structure 8 to operate.

[0041] It should be understood that the above description is only for exemplary purposes and is not meant to limit the present invention. Those skilled in the art will appreciate that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A moisturizing hand cream, characterized in that: The invention is composed of the following ingredients in parts by mass: 8-12 parts of glycerin, 6-10 parts of vaseline, 3-7 parts of allantoin, 5-9 parts of shea butter and 2-6 parts of vitamin E.

2. A moisturizing hand cream according to claim 1, characterized in that: Among them, it contains 10 parts of glycerin, 8 parts of vaseline, 5 parts of allantoin, 7 parts of shea butter and 4 parts of vitamin E.

3. A method for preparing the moisturizing hand cream according to any one of claims 1-2, characterized in that: The moisturizing hand cream is prepared by a moisturizing hand cream preparation device. The moisturizing hand cream preparation device comprises a water bath (1), a bracket (2), a top cover (3) and a motor 1 (4). The brackets (2) are fixedly mounted on both sides of the water bath (1). The top of the water bath (1) is connected to the top cover (3). The interior of the water bath (1) is rotatably connected to a stirring rod (11). The top of the top cover (3) is fixedly connected to the motor 1 (4). The output shaft of the motor 1 (4) passes through the bottom of the top cover (3) and is fixedly connected to the stirring rod (11). The top of the top cover (3) is fixedly connected to a feed pipe (5) connected to the interior of the water bath (1). A water bath interlayer (9) is provided inside the water bath (1). The top of the water bath (1) is connected to a sealing ring (6) plugged into the water bath interlayer (9). The top of the sealing ring (6) is fixedly connected to a water inlet pipe (10) connected to the interior of the water bath interlayer (9).

4. The method for preparing a moisturizing hand cream according to claim 3, characterized in that: The specific preparation steps are as follows: ① weigh glycerin, vaseline, allantoin, shea butter and vitamin E as raw materials according to the formula amount, place the vaseline and shea butter in a water bath (1) through a feed pipe (5), then inject 70-80° C. water into the water bath interlayer (9) through a water inlet pipe (10), and then start a motor 1 (4) to drive a stirring rod (11) to rotate, so that the vaseline and shea butter are heated, melted and mixed; ② Add the melted vaseline and shea butter together with glycerin, allantoin and vitamin E into a stirring container, and stir at 400-600 rpm for 15-25 minutes until evenly mixed; ③ Add 0.3-0.8% carbomer thickener to the stirred mixture and continue stirring for 10-15 minutes to fully disperse it; ④ Use triethanolamine to adjust the pH value of the system to 6-7, then add 0.5-1.2% of the preservative benzyl alcohol and 0.2-0.5% of the flavor by mass fraction, and stir for 5-10 minutes; ⑤ Transfer the mixture to a homogenizer and homogenize for 10-15 minutes at a homogenization pressure of 15-20 MPa; ⑥ Degas the homogenized material to remove the bubbles therein, and then discharge the material and can it to obtain the moisturizing hand cream.

5. The method for preparing a moisturizing hand cream according to claim 3, characterized in that: The device for preparing the moisturizing hand cream further comprises a discharge pipe (12) and a water outlet pipe (18) for discharging materials, the discharge pipe (12) is fixedly connected to the bottom of the water bath pot (1) through the inside, and the water bath interlayer (9) is fixedly connected to the water outlet pipe (18) through the bottom of the water bath pot (1) through the inside.

6. The method for preparing a moisturizing hand cream according to claim 3, characterized in that: The preparation device for moisturizing hand cream further comprises a discharge structure (7) for increasing the discharge speed of the water bath (1), the discharge structure (7) comprising a discharge hose (14) and a rotating block (15), the bottom of the water bath (1) being fixedly connected to a fixed box (13), the discharge hose (14) being arranged inside the fixed box (13), one end of the discharge hose (14) being fixedly connected to the bottom of a discharge pipe (12), the other end of the discharge hose (14) passing through the bottom of the fixed box (13), the discharge hose (14) being arranged in a C-shaped manner inside the fixed box (13), the rotating block (15) being rotatably connected to the inside of the fixed box (13), the top and bottom of the rotating block (15) being rotatably connected to an extrusion wheel (16), the extrusion wheel (16) and the discharge hose (14) being mutually extruded.

7. The method for preparing a moisturizing hand cream according to claim 3, characterized in that: The device for preparing the moisturizing hand cream further comprises a second motor (17) for driving the rotating block (15) to rotate, and the second motor (17) is fixedly connected to one side of the fixed box (13), and the output shaft of the second motor (17) passes through the interior of the fixed box (13) and is fixedly connected to the rotating block (15).

8. The method for preparing a moisturizing hand cream according to claim 6, characterized in that: The preparation device of the moisturizing hand cream also includes a scale cleaning structure (8) for cleaning scale inside the water bath interlayer (9), the scale cleaning structure (8) includes a scraper (19), the scraper (19) is slidably connected to the inside of the water bath interlayer (9), the bottom of the sealing ring (6) passes through the top and is provided with a slot (25), the top of the scraper (19) passes through the slot (25) and is fixedly connected to a connecting block (20), the bottom of the connecting block (20) and the outer surface of the water bath pot (1) are fixedly connected to a connecting rod (21), and the outer surface of the connecting rod (21) is fixedly connected to A sliding block (22) is slidably connected to the outer surface of the water bath (1); a rotating ring (23) is rotatably connected to the outer surface of the water bath (1) and is located at the bottom of the connecting rod (21); a bevel tooth groove is provided at the bottom of the rotating ring (23); a rotating shaft (34) is rotatably connected to the outer surface of the water bath (1) and is located at the bottom of the rotating ring (23); one end of the rotating shaft (34) is fixedly connected to a bevel gear (24); the bevel gear (24) is meshed with the rotating ring (23) via the bevel tooth groove; and the connection between the bracket (2) and the water bath (1) is located at the bottom of the rotating ring (23).

9. The method for preparing a moisturizing hand cream according to claim 8, characterized in that: The moisturizing hand cream preparation device further comprises a pulley (28) for driving the rotating shaft (34) to rotate; the other side of the fixed box (13) is rotatably connected to a connecting shaft (27); the bottom of the water bath (1) is fixedly connected to a support block (33); the connecting shaft (27) passes through the support block (33); the outer surface of the connecting shaft (27) is rotatably connected to a pulley (28) at one end; the outer surface of the rotating shaft (34) is also fixedly connected to a pulley (28) at one end; a belt (29) is sleeved between the two pulleys (28); and the other end of the connecting shaft (27) passes through the interior of the fixed box (13) and is fixedly connected to the rotating block (15).

10. A method for preparing the moisturizing hand cream according to claim 7, characterized in that: The preparation device for the moisturizing hand cream further comprises a switching structure (26) driven to rotate by a bottom pulley (28), the switching structure (26) comprising a fixed ring (30), a movable ring (31) and a docking ring (35), the fixed ring (30) being fixedly connected to the outer surface of the connecting shaft (27), the movable ring (31) being slidably connected to the outer surface of the connecting shaft (27) and being located on one side of the fixed ring (30), the docking ring (35) being rotatably connected to the outer surface of the connecting shaft (27) and being located on one side of the movable ring (31), the docking ring (35) being meshed with the movable ring (31), and a plurality of fixed rings being fixedly connected to one side of the fixed ring (30) and being located on the outer surface of the connecting shaft (27). A rod (39), one end of the fixed rod (39) passes through the interior of the movable ring (31), a spring (40) is fixedly connected between the movable ring (31) and the fixed ring (30) and on the outer surface of each fixed rod (39), the outer surface of the movable ring (31) is rotatably connected to a toggle ring (32), the outer surface of the toggle ring (32) and the outer surface of the fixed ring (30) are symmetrically fixedly connected to two fixed blocks (36) on one side, a screw rod (37) is threadedly connected between the two fixed blocks (36) at the front, a guide rod (38) is slidably connected between the two fixed blocks (36) at the rear, and one side of the docking ring (35) is fixedly connected to a pulley (28) at the bottom.

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