Preparation method of bio-based polyurea sealant

Abstract

The invention discloses a preparation method of a bio-based polyurea sealant, relates to the technical field of sealant preparation, and aims at solving the technical problems that an existing sealant is poor in performance and low in preparation efficiency. Comprising a component A and a component B, wherein the component A comprises bio-based polyaspartic acid ester resin, polyurethane resin, epoxy acrylate resin, compound extinction silicon dioxide, hydrophobic fumed silica, modified hollow glass microspheres and color paste; the component B is prepared from a bio-based isocyanate prepolymer, an HDI (hexamethylene diisocyanate) tripolymer, diaminodicyclohexylmethane, isophorone diamine, a coupling agent, hydrophobic fumed silica and modified hollow glass microspheres. The component A and the component B are manufactured through the two reaction cavities of the preparation device respectively, the component A and the component B which are located in the two reaction cavities respectively are collected in one reaction cavity, the preparation efficiency of the sealant is improved, and the obtained bio-based polyaspartic-polyurea sealant product is better in mechanical property, higher in durability and stability of sealant and not prone to cracking and falling off.

Description

Technical Field

[0001] The present invention relates to the technical field of preparing seam beautifying agents, and more specifically, to a method for preparing a bio-based polyurea seam beautifying agent. Background Art

[0002] Sealing agent is a decorative material used to fill the gaps of tiles, mosaics, etc. Its main function is to beautify the gaps, making the tile joints on the floor or wall look more neat and beautiful. At the same time, the seaming agent can also play a role in waterproofing, anti-fouling and anti-mildew, effectively preventing dust, stains and moisture from entering the gaps, protecting the edges of tiles and extending the service life of tiles.

[0003] At present, some seam beautifiers on the market still have the disadvantage of poor mechanical properties. After long-term use, they are prone to cracking, falling off and other problems. In addition, during the preparation process of existing seam beautifiers, component A and component B need to be produced separately and then stored. Finally, component A and component B are mixed according to a certain mass ratio, stirred evenly under vacuum conditions, and the air mixed in during the stirring process is removed to obtain a seam beautifier product. This is time-consuming and labor-intensive, and the seam beautifier preparation efficiency is low. In view of this, we propose a preparation method of a bio-based polyurea seam beautifier. Summary of the invention

[0004] The object of the present invention is to provide a method for preparing a bio-based polyurea seam beautifying agent, so as to solve the technical problems of poor performance and low preparation efficiency of existing seam beautifying agents.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a method for preparing a bio-based polyurea seam beautifying agent, comprising the following steps: S1: Raw material preparation Component A: 75-85 parts of bio-based polyaspartic acid ester resin, 2-5 parts of polyurethane resin, 2-3 parts of epoxy acrylate resin, 0-1 parts of dispersant, 0-1 parts of defoamer, 8-10 parts of compound matte silica, 6-8 parts of hydrophobic fumed silica, 6-8 parts of modified hollow glass microspheres, and 3-6 parts of color paste; Component B: 45-60 parts of bio-based isocyanate prepolymer, 15-30 parts of HDI trimer, 4-8 parts of diaminodicyclohexylmethane, 12-20 parts of isophorone diamine, 3-8 parts of coupling agent, 3-5 parts of hydrophobic fumed silica, 5-10 parts of modified hollow glass microspheres; S2: Preparation of component A: Place 75-85 parts of bio-based polyaspartic acid ester resin and 2-3 parts of epoxy acrylate resin by mass into one of the reaction chambers of the preparation device for grafting reaction, then add 2-5 parts of polyurethane resin for fusion, and add 0-1 part of dispersant, 0-1 part of defoaming agent, 8-10 parts of compound matte silica, 6-8 parts of hydrophobic fumed silica, 6-8 parts of modified hollow glass microspheres, and 3-6 parts of color paste during the fusion process; mix well to obtain component A.

[0006] S3: Preparation of component B: Add 45-60 parts of bio-based isocyanate prepolymer, 15-30 parts of HDI trimer, 4-8 parts of diaminodicyclohexylmethane, 12-20 parts of isophorone diamine, 3-8 parts of coupling agent, and 3-5 parts of hydrophobic fumed silica to another reaction chamber of the preparation device and mix them. After the reaction is completed, add 5-10 parts of modified hollow glass microspheres and mix them evenly to obtain component B; S4: Usually, the mass ratio of component A to component B is 1:1-1:1.2. Component A and component B respectively located in two reaction chambers are gathered in one of the reaction chambers, stirred evenly under vacuum conditions, and the air mixed in during the stirring process is removed to obtain a bio-based aspartic acid polyurea caulking agent product; the polyaspartic acid ester resin component in the bio-based polyurea caulking agent has excellent bonding properties, can deeply penetrate and connect with substrates such as tiles, and firmly bond to surfaces of different materials, ensuring the durability and stability of the caulking, and not prone to cracking, falling off and other problems.

[0007] The preparation device has two reaction chambers, and the preparation device includes a base, and the top of the base is fixedly provided with an outer tube, the outer tube is fixedly provided with a top ring block, the top ring block is fixedly provided with a heating tube A, the top of the heating tube A is provided with a rotating mechanism, the heating tube A is provided with a stirring mechanism A, the bottom of the heating tube A is fixedly provided with an opening and closing mechanism, the bottom of the opening and closing mechanism is fixedly provided with a heating tube B, the heating tube B is arranged with a stirring mechanism B, the bottom of the heating tube B is provided with an adjusting mechanism, the input end of the stirring mechanism A and the input end of the stirring mechanism B are both connected to the rotating end of the rotating mechanism, one of the reaction chambers is composed of the heating tube A, the rotating mechanism and the opening and closing mechanism gap, and the other reaction chamber is composed of the opening and closing mechanism, the heating tube B and the adjusting mechanism gap, two feeding pipes, a discharging pipe and a vacuum pipe are fixedly provided on the outer tube, the two feeding pipes are respectively connected with the tops of the two reaction chambers, the discharging pipe is connected with the bottom of the reaction chamber located below, and the vacuum pipe is connected with the reaction chamber located above. The present invention uses two reaction chambers of a preparation device to respectively prepare component A and component B, and gathers component A and component B respectively located in the two reaction chambers in one of the reaction chambers, thereby improving the preparation efficiency of the seam beautifying agent. The obtained bio-based asparagine polyurea seam beautifying agent product has better mechanical properties, and the durability and stability of the seam beautifying agent are higher, and it is not easy to crack or fall off.

[0008] Preferably, the rotating mechanism includes a top round block, which is fixedly arranged at the top of the heating tube A, and a motor A is fixedly arranged at the top of the top round block. A circular groove is opened in the top round block, and a connecting rod is rotatably connected to the top of the circular groove. The top of the connecting rod passes through the top round block and is fixedly connected to the output shaft of the motor A. A sliding rod is fixedly arranged at the bottom end of the connecting rod, and a snap-on gear is slidably connected to the sliding rod. A sliding tube is fixedly arranged at the bottom end of the snap-on gear, and a sleeve A is rotatably connected to the bottom end of the circular groove. The bottom end of the sleeve A passes through the top round block and is fixedly provided with a snap-on gear ring, and the snap-on gear ring is snap-fitted with the snap-on gear.

[0009] The bottom end of the tooth portion of the engaging gear is a pointed structure, and the top end of the tooth portion of the engaging gear ring is a pointed structure.

[0010] Preferably, the stirring mechanism A includes a central gear ring and a plurality of side gears A, the central gear ring is fixedly arranged at the top end of the sleeve A, and the plurality of side gears A are arranged in a ring-shaped and equidistantly spaced structure in the circular groove, the side gears A are meshed and connected with the central gear ring, and the side gears A are rotatably connected with the circular groove through a rotating rod A, and the bottom end of the rotating rod A passes through the top round block and is fixedly provided with a stirring paddle A.

[0011] Preferably, the opening and closing mechanism comprises a mounting ring block, the mounting ring block is fixedly arranged in the outer tube, the two ends of the mounting ring block are respectively fixedly connected to the heating tube A and the heating tube B, the inner edge surface of the mounting ring block is provided with a ring groove A, the top of the ring groove A is fixedly provided with a fixing ring block, the bottom end of the fixing ring block is provided with a plurality of centripetal grooves in an annular structure with equal spacing, the bottom end of the ring groove A is rotatably connected with an adjusting ring block, the top end of the adjusting ring block is provided with a plurality of guide grooves in an annular structure with equal spacing, a plurality of sealing plates are provided in an annular structure with equal spacing in the gap between the fixing ring block and the adjusting ring block, any two adjacent sealing plates are movably connected, a rotating plate is fixedly provided at the eccentric end of the sealing plate, a guide shaft is rotatably connected to the rotating plate, and the two ends of the guide shaft are respectively rotatably connected to the guide groove and the centripetal groove; The guide grooves are in a V-shaped structure, and any two guide grooves are connected through an arc groove.

[0012] Preferably, triangular grooves A are provided in a circular equidistant structure on the outer edge surface of the adjusting ring block, the depth of the triangular grooves A gradually increases in the counterclockwise direction, the gap between the triangular grooves A and the annular groove A constitutes a reverse limit cavity, a limit column A is arranged in the limit cavity, a plurality of ball blocks A are movably provided at both ends of the limit column A, the ball blocks A are movably connected to the triangular grooves A, and the limit column A is elastically connected to the deep part of the triangular groove A through a spring A.

[0013] Preferably, a connecting ring block is provided in the adjusting ring block, and the outer edge surface of the connecting ring block is fixedly connected to the inner edge surface of the adjusting ring block by a number of evenly arranged connecting rods. A rotating groove is provided in the connecting ring block, and a slip ring is rotatably connected to the rotating groove. The slip ring is slidably connected to the sliding tube, and a number of triangular grooves B are provided in an annular evenly spaced structure on the outer edge surface of the slip ring. The triangular grooves B and the gap between the rotating grooves constitute a forward limiting cavity, and a limiting column B is provided in the forward limiting cavity. At least one ball block B is movably provided at both ends of the limiting column B, and the ball block B is movably connected to the rotating groove, and the limiting column B is elastically connected to the deep part of the triangular groove B through a spring B.

[0014] Preferably, a ring groove X is provided on the centripetal side of the bottom end of the fixed ring block, a sealing ring A is fixed on the ring groove X, and the sealing ring A is movably connected to the top end of the sealing plate; The sealing plate is in a fan-shaped structure, a sealing groove is provided on one side of the sealing plate, a sealing strip is fixed on the sealing groove, and the sealing strip is movably connected to the corresponding sealing plate; A ring groove B is provided on the surface of the connecting ring block relative to the sealing plate, a sealing ring B is fixed on the ring groove B, and the centripetal ends of the sealing plates are movably connected to the surface of the sealing ring B; Wherein, the sealing ring A, the sealing strip and the sealing ring B are all made of polytetrafluoroethylene.

[0015] Preferably, the stirring mechanism B comprises an inner gear ring and a plurality of slide rails, the inner gear ring is arranged in the heating tube B, both ends of the inner gear ring are rotatably connected with discs, a central gear is arranged in the gap between the two discs, a first rotating rod B is fixedly arranged on the central gear, both ends of the first rotating rod B are rotatably connected with the two discs respectively, the top end of the first rotating rod B passes through the disc at the top and is fixedly connected with the bottom end of the slide tube, the central gear and the inner gear ring are meshed and connected through a plurality of side gears B arranged in an annular equidistant structure, a second rotating rod B is fixedly arranged on the gear B, both ends of the second rotating rod B are rotatably connected with the two discs respectively, the bottom end of the second rotating rod B passes through the disc located below and is fixedly provided with a stirring paddle B, an L-shaped rod is fixedly arranged on the outer edge surface of the inner gear ring in an annular equidistant structure, a plurality of the slide rails are fixedly arranged on the top end of the heating tube B in an annular equidistant structure, and a plurality of the L-shaped rods are respectively slidably matched with a plurality of the slide rails.

[0016] Preferably, the adjusting mechanism comprises a bottom round block and a motor B, the bottom round block is fixedly arranged on the bottom end of the heating tube B, the bottom end of the bottom round block is fixedly connected to the top end of the base, the top end of the base is provided with a motor slot, the motor B is fixedly arranged in the motor slot, the top end of the bottom round block is fixedly arranged with a column, the top end of the column is provided with a lifting guide slot, the bottom end of the lifting guide slot is provided with a slide slot, an arc plate is slidably connected to the slide slot, the bottom end of the column is provided with a cavity connected to the slide slot, a threaded column is arranged in the cavity, the threaded column is threadedly connected to the inner surface of the arc plate, a rotating shaft is fixedly arranged at the bottom end of the threaded column, the bottom end of the rotating shaft passes through the bottom round block and is fixedly connected to the output shaft of the motor B, a sleeve B is sleeved on the column, the top end of the sleeve B is fixedly connected to the bottom end of the disc located below, and the bottom end of the sleeve B is rotatably connected with a movable block, the movable block slidably cooperates with the slide slot, and the movable block movably cooperates with the lifting guide slot.

[0017] Preferably, the lifting guide groove comprises two thread guide grooves arranged in a symmetrical structure, the two thread guide grooves are connected through an arc guide groove, and the arc guide groove located at the bottom is connected to the slide groove.

[0018] The beneficial effects of the present invention are: 1. The present invention prepares component A and component B respectively through two reaction chambers of a preparation device, and gathers component A and component B respectively located in the two reaction chambers in one of the reaction chambers, thereby improving the preparation efficiency of the seam beautifying agent. The obtained bio-based asparagine polyurea seam beautifying agent product has better mechanical properties, higher durability and stability of the seam beautifying agent, and is not easy to crack or fall off.

[0019] 2. The present invention adopts the structural design of the rotating mechanism, the stirring mechanism A, the stirring mechanism B and the adjusting mechanism, so that when the movable block is on the slide groove, the sleeve B cannot rotate, so that the disc located below cannot rotate. At this time, the L-shaped rod is in a disengaged state from the slide rail, the inner gear ring can rotate, and the engaging gear is engaged with the engaging gear ring. The rotation of the engaging gear can drive the engaging gear ring and the sleeve A to rotate. At this time, the output shaft of the motor A is controlled to rotate in the opposite direction through the external control mechanism, and the slide tube drives the slide ring to rotate relative to the rotating groove. At this time, the inner gear ring rotates, and the stirring paddles A and B rotate, so that the liquids in the two reaction chambers can be stirred, and it is used for the simultaneous preparation of components A and B. When the arc plate slides upward in the slide groove until the movable block enters the lifting guide groove, the L-shaped rod slides into the slide rail, making the inner gear ring unable to rotate. At this time, the output shaft of motor A is controlled to rotate in the opposite direction through the external control mechanism, and the engaging gear is disengaged from the engaging gear ring. At this time, the output shaft of motor A is controlled to rotate in the opposite direction through the external control mechanism. When the engaging gear rotates, it will not drive the engaging gear ring and sleeve A to rotate. Therefore, the stirring mechanism A will not stir to reduce energy loss. Several side gears B drive the stirring paddle B to perform planetary revolution motion to improve the stirring efficiency, and the rotation of the disc located below drives the sleeve B to rotate, so that the movable block enters the lifting guide groove and moves on the lifting guide groove, causing the entire stirring mechanism B to rise and fall, thereby causing the stirring paddle B to perform a lifting planetary revolution motion, which is convenient for the full mixing of components A and B, and further improves the mixing efficiency of components A and B, and is used for mixing components A and B to prepare bio-based asparagus polyurea seam beautifying agent products.

[0020] 3. The present invention designs the rotating mechanism and the opening and closing mechanism, so that the rotation of the sliding tube can drive the slip ring to rotate through the above arrangement. Referring to the principle of the limit column A, it can be known that the slip ring can only rotate in the reverse direction relative to the rotating groove, and cannot rotate in the forward direction relative to the rotating groove. Therefore, when the sliding tube drives the slip ring to rotate in the forward direction, the connecting ring block also rotates in the forward direction and drives the adjusting ring block to rotate through the connecting rod, which is used to adjust the opening and closing forms of several sealing plates. When the sliding tube drives the slip ring to rotate in the reverse direction, the sliding tube drives the slip ring to rotate relative to the rotating groove, which will not affect the opening and closing state of the opening and closing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic structural diagram of the rotating mechanism, stirring mechanism A and stirring mechanism B of the present invention; Figure 4 It is a schematic diagram of the split structure of the rotating mechanism and the stirring mechanism A of the present invention; Figure 5 It is a schematic diagram of the structure of the engaging gear and the engaging gear ring of the present invention; Figure 6 It is a schematic diagram of the split structure of the stirring mechanism B of the present invention; Figure 7 It is a schematic diagram of the split structure of the regulating mechanism of the present invention; Figure 8 It is a schematic diagram of the partial structural disassembly of the regulating mechanism of the present invention; Fig. 9 It is a schematic diagram of the structure of the column and the arc plate of the present invention; Fig.10 It is a schematic diagram of the disassembled structure of the opening and closing mechanism in the closed state of the present invention; Fig.11 It is a schematic cross-sectional structure diagram of the opening and closing mechanism in the open state of the present invention; Fig.12 It is a schematic diagram of the split structure of the sealing plate, the rotating plate and the guide shaft of the present invention; Fig.13 It is a schematic diagram of the cross-sectional structure of the adjusting ring block of the present invention; Fig.14 For the present invention Fig.13 A schematic diagram of the enlarged structure of part A of the structure; Fig.15 It is a schematic diagram of the disassembled state of part of the structure of the adjusting ring block of the present invention.

[0022] Description of the numbers in the figure: 1. Base; 2. Outer tube; 3. Heating tube A; 4. Rotating mechanism; 5. Stirring mechanism A; 6. Opening and closing mechanism; 7. Heating tube B; 8. Stirring mechanism B; 9. Adjusting mechanism; 21. Top ring block; 22. Inlet pipe; 23. Outlet pipe; 24. Vacuum tube; 41. top round block; 42. motor A; 43. round groove; 44. connecting rod; 45. sliding rod; 46. snap-fit ​​gear; 47. sliding tube; 48. sleeve A; 49. snap-fit ​​gear ring; 51. Center gear ring; 52. Gear A; 53. Rotating rod A; 54. Stirring paddle A; 60. Arc groove; 61. Mounting ring block; 62. Ring groove A; 63. Fixed ring block; 64. Centripetal groove; 65. Adjusting ring block; 66. Guide groove; 67. Closing plate; 68. Rotating plate; 69. Guide shaft; 651, triangular groove A; 652, limiting column A; 653, ball block A; 654, spring A; 601, connecting ring block; 602, connecting rod; 603, rotating groove; 604, sliding ring; 605, triangular groove B; 606, limiting column B; 607, ball block B; 608, spring B; 631, sealing ring A; 671, sealing strip; 6011, sealing ring B; 81. inner gear ring; 82. disk; 83. central gear; 84. first rotating rod B; 85. gear B; 86. second rotating rod B; 87. stirring paddle B; 88. L-shaped rod; 89. slide rail; 91, bottom round block; 92, motor B; 93, column; 94, lifting guide groove; 95, slide groove; 96, arc plate; 97, cavity; 98, threaded column; 99, rotating shaft; 910, sleeve B; 911, movable block; 941. Thread guide groove; 942. Arc guide groove. DETAILED DESCRIPTION

[0023] like Figures 1 to 15 As shown, the present invention relates to a method for preparing a bio-based polyurea seam beautifying agent, comprising the following steps: S1: Raw material preparation Component A: 75-85 parts of bio-based polyaspartic acid ester resin, 2-5 parts of polyurethane resin, 2-3 parts of epoxy acrylate resin, 0-1 parts of dispersant, 0-1 parts of defoamer, 8-10 parts of compound matte silica, 6-8 parts of hydrophobic fumed silica, 6-8 parts of modified hollow glass microspheres, and 3-6 parts of color paste; Component B: 45-60 parts of bio-based isocyanate prepolymer, 15-30 parts of HDI trimer, 4-8 parts of diaminodicyclohexylmethane, 12-20 parts of isophorone diamine, 3-8 parts of coupling agent, 3-5 parts of hydrophobic fumed silica, 5-10 parts of modified hollow glass microspheres; S2: Preparation of component A: Place 75-85 parts of bio-based polyaspartic acid ester resin and 2-3 parts of epoxy acrylate resin by mass into one of the reaction chambers of the preparation device for grafting reaction, then add 2-5 parts of polyurethane resin for fusion, and add 0-1 part of dispersant, 0-1 part of defoaming agent, 8-10 parts of compound matte silica, 6-8 parts of hydrophobic fumed silica, 6-8 parts of modified hollow glass microspheres, and 3-6 parts of color paste during the fusion process; mix well to obtain component A.

[0024] S3: Preparation of component B: Add 45-60 parts of bio-based isocyanate prepolymer, 15-30 parts of HDI trimer, 4-8 parts of diaminodicyclohexylmethane, 12-20 parts of isophorone diamine, 3-8 parts of coupling agent, and 3-5 parts of hydrophobic fumed silica to another reaction chamber of the preparation device and mix them. After the reaction is completed, add 5-10 parts of modified hollow glass microspheres and mix them evenly to obtain component B; S4: Usually, the mass ratio of component A to component B is 1:1-1:1.2. Component A and component B respectively located in two reaction chambers are collected in one of the reaction chambers, stirred evenly under vacuum conditions, and the air mixed in during the stirring process is removed to obtain a bio-based asparagine polyurea seam beautifying agent product; The preparation device has two reaction chambers, and the preparation device includes a base 1, including an outer tube 2 fixedly arranged at the top of the base 1, a top ring block 21 fixedly arranged at the outer tube 2, a heating tube A3 fixedly arranged on the top of the heating tube A3, a rotating mechanism 4 provided at the top of the heating tube A3, a stirring mechanism A5 provided in the heating tube A3, an opening and closing mechanism 6 fixedly arranged at the bottom of the heating tube A3, a heating tube B7 fixedly arranged at the bottom of the opening and closing mechanism 6, a stirring mechanism B8 arranged in the heating tube B7, an adjusting mechanism 9 provided at the bottom of the heating tube B7, an input end of the stirring mechanism A5 and The input ends of the stirring mechanism B8 are connected to the rotating ends of the rotating mechanism 4. One reaction chamber is composed of the heating tube A3, the rotating mechanism 4 and the gap between the opening and closing mechanism 6, and the other reaction chamber is composed of the gap between the opening and closing mechanism 6, the heating tube B7 and the adjusting mechanism 9. Two feed pipes 22, a discharge pipe 23 and a vacuum tube 24 are fixedly provided on the outer tube 2. The two feed pipes 22 are respectively connected to the top ends of the two reaction chambers, the discharge pipe 23 is connected to the bottom end of the reaction chamber located below, and the vacuum tube 24 is connected to the reaction chamber located above.

[0025] In an embodiment of the present invention, the rotating mechanism 4 includes a top round block 41, which is fixedly arranged at the top of the heating tube A3, and a motor A42 is fixedly arranged at the top of the top round block 41. A circular groove 43 is opened in the top round block 41, and a connecting rod 44 is rotatably connected to the top of the circular groove 43. The top of the connecting rod 44 passes through the top round block 41 and is fixedly connected to the output shaft of the motor A42. A sliding rod 45 is fixedly arranged at the bottom end of the connecting rod 44, and a snap-on gear 46 is slidably connected to the sliding rod 45. A sliding tube 47 is fixedly arranged at the bottom end of the snap-on gear 46. A sleeve A48 is rotatably connected to the bottom end of the circular groove 43, and the bottom end of the sleeve A48 passes through the top round block 41 and is fixedly provided with a snap-on gear ring 49, which is snap-fitted with the snap-on gear 46; the bottom end of the tooth portion of the snap-on gear 46 has a pointed-angle structure, and the top end of the tooth portion of the snap-on gear ring 49 has a pointed-angle structure. Through the above arrangement, the present invention enables the motor A42 to drive the connecting rod 44, the sliding rod 45 and the engaging gear 46 to rotate, and the engaging gear 46 can slide relative to the sliding rod 45, wherein, when the engaging gear 46 is engaged with the engaging gear ring 49, the rotation of the engaging gear 46 can drive the engaging gear ring 49 and the sleeve A48 to rotate, and when the engaging gear 46 moves to the top of the engaging gear ring 49, the engaging gear 46 will not drive the engaging gear ring 49 and the sleeve A48 to rotate when it rotates. The present invention sets the bottom end of the tooth portion of the engaging gear 46 to have a pointed angle structure, and the top end of the tooth portion of the engaging gear ring 49 to have a pointed angle structure, so that when the engaging gear 46 moves up and down, it is easier to engage with the engaging gear ring 49, which greatly reduces the possibility of the teeth of the engaging gear 46 and the teeth of the engaging gear ring 49 getting stuck.

[0026] In the embodiment of the present invention, the stirring mechanism A5 includes a central gear ring 51 and a plurality of side gears A52, the central gear ring 51 is fixedly arranged at the top of the sleeve A48, the plurality of side gears A52 are arranged in a circular groove 43 in an annular structure with equal spacing, the side gears A52 are meshed and connected with the central gear ring 51, the side gears A52 are rotatably connected with the circular groove 43 through a rotating rod A53, the bottom end of the rotating rod A53 passes through the top round block 41 and is fixedly provided with a stirring paddle A54. Through the above arrangement, the present invention enables the rotation of the sleeve A48 to drive the side gears A52 to rotate with the rotating rod A53 as the rotation axis, thereby causing the stirring paddle A54 to rotate.

[0027] In the embodiment of the present invention, the opening and closing mechanism 6 includes a mounting ring block 61, which is fixedly arranged in the outer tube 2, and the two ends of the mounting ring block 61 are respectively fixedly connected to the heating tube A3 and the heating tube B7, and an annular groove A62 is provided on the inner edge surface of the mounting ring block 61, and a fixed ring block 63 is fixedly arranged on the top of the annular groove A62, and a plurality of centripetal grooves 64 are provided on the bottom of the fixed ring block 63 in an annular structure with equal spacing, and an adjusting ring block 65 is rotatably connected to the bottom of the annular groove A62, and a plurality of guide grooves 66 are provided on the top of the adjusting ring block 65 in an annular structure with equal spacing, and a plurality of sealing plates 67 are provided in an annular structure with equal spacing in the gap between the fixing ring block 63 and the adjusting ring block 65, and any two adjacent sealing plates 67 are movably connected, and a rotating plate 68 is fixedly arranged on the eccentric end of the sealing plate 67, and a guide shaft 69 is rotatably connected to the rotating plate 68, and the two ends of the guide shaft 69 are respectively rotatably connected to the guide groove 66 and the centripetal groove 64; The guide groove 66 is V-shaped, and any two guide grooves 66 are connected through the arc groove 60. The present invention designs the structure of the opening and closing mechanism 6 so that when the adjusting ring block 65 rotates relative to the fixed ring block 63, the gap position between the guide groove 66 and the centripetal groove 64 changes, so that the two ends of the guide shaft 69 move in the guide groove 66 and the centripetal groove 64 respectively, so that the rotating plate 68 drives the sealing plate 67 to move adaptively. This is the principle of the iris mechanism and will not be described in detail here. Among them, when the guide shaft 69 is located at the centripetal end of the centripetal groove 64, as shown in FIG. Fig.10 As shown, a plurality of sealing plates 67 form a closed state. When the guide shaft 69 is located at the eccentric end of the centripetal groove 64, as shown in FIG. Fig.11As shown, several sealing plates 67 form an open state, and by setting the guide groove 66 in a V-shaped structure, when the adjusting ring block 65 rotates unidirectionally relative to the fixed ring block 63, when the guide shaft 69 moves from one end of the guide groove 66 to the middle of the guide groove 66, the guide shaft 69 moves from the centrifugal end of the centrifugal groove 64 to the eccentric end of the centrifugal groove 64, and several sealing plates 67 change from a closed state to an open state, and when the guide shaft 69 moves from the middle of the guide groove 66 to the other end of the guide groove 66, the guide shaft 69 moves from the eccentric end of the centrifugal groove 64 to the centrifugal end of the centrifugal groove 64, and several sealing plates 67 change from a closed state to an open state. 7 changes from an open state to a closed state, any two guide grooves 66 are arranged to be connected through the arc groove 60, so that when the guide shaft 69 moves in the arc groove 60, the guide shaft 69 is always at the centripetal end of the centripetal groove 64, and the shapes of the plurality of sealing plates 67 remain unchanged, so that the closed state formed by the plurality of sealing plates 67 is more stable, and the guide shaft 69 can move from one of the guide grooves 66 through the arc groove 60 into the other guide groove 66, so that the adjusting ring block 65 rotates unidirectionally relative to the fixed ring block 63, and the opening and closing states of the plurality of sealing plates 67 can be always controlled.

[0028] In an embodiment of the present invention, triangular grooves A651 are provided in a circular equidistant structure on the outer edge surface of the adjusting ring block 65. The depth of the triangular grooves A651 gradually increases in the counterclockwise direction. The gap between the triangular grooves A651 and the annular groove A62 constitutes a reverse limiting cavity. A limiting column A652 is arranged in the limiting cavity. A plurality of ball blocks A653 are movably provided at both ends of the limiting column A652. The ball blocks A653 are movably connected to the triangular grooves A651. The limiting column A652 is elastically connected to the deep part of the triangular groove A651 through a spring A654. The present invention further designs the adjustment ring block 65 so that when the adjustment ring block 65 rotates in the forward direction, under the friction force of the annular groove A62 on the limiting column A652, the limiting column A652 has the force to move toward the deep part of the triangular groove A651, and the influence of the limiting column A652 on the forward rotation of the adjustment ring block 65 is relatively small. The ball block A653 is provided to reduce the movement resistance of the limiting column A652 in the triangular groove A651. When the adjustment ring block 65 rotates in the reverse direction, under the friction force of the annular groove A62 on the limiting column A652, the limiting column A652 has the force to move toward the shallow part of the triangular groove A651, so that the annular groove A62 locks the triangular groove A651 through the limiting column A652. Therefore, the adjustment ring block 65 cannot rotate in the reverse direction but can only rotate in the forward direction.

[0029] In the embodiment of the present invention, a connecting ring block 601 is provided in the adjusting ring block 65, and the outer edge surface of the connecting ring block 601 is fixedly connected to the inner edge surface of the adjusting ring block 65 by a plurality of evenly arranged connecting rods 602, a rotating groove 603 is provided in the connecting ring block 601, a slip ring 604 is rotatably connected to the rotating groove 603, the slip ring 604 is slidably connected to the sliding tube 47, a plurality of triangular grooves B605 are provided in an annular evenly spaced structure on the outer edge surface of the slip ring 604, the gap between the triangular grooves B605 and the rotating groove 603 constitutes a forward limiting cavity, a limiting column B606 is provided in the forward limiting cavity, at least one ball block B607 is movably provided at both ends of the limiting column B606, the ball block B607 is movably connected to the rotating groove 603, and the limiting column B606 is elastically connected to the deep part of the triangular groove B605 by a spring B608. Through the above arrangement, the present invention enables the rotation of the sliding tube 47 to drive the slip ring 604 to rotate. Referring to the principle of the limit column A652, it can be known that the slip ring 604 can only rotate in the opposite direction relative to the rotating groove 603, and cannot rotate in the forward direction relative to the rotating groove 603. Therefore, when the sliding tube 47 drives the slip ring 604 to rotate in the forward direction, the connecting ring block 601 also rotates in the forward direction and drives the adjusting ring block 65 to rotate through the connecting rod 602, which is used to adjust the opening and closing states of the plurality of sealing plates 67. When the sliding tube 47 drives the slip ring 604 to rotate in the opposite direction, the sliding tube 47 drives the slip ring 604 to rotate relative to the rotating groove 603.

[0030] In the embodiment of the present invention, a ring groove X is provided on the centripetal side of the bottom end of the fixed ring block 63, a sealing ring A631 is fixed on the ring groove X, and the sealing ring A631 is movably connected to the top of the sealing plate 67; the sealing plate 67 is a fan-shaped structure, a sealing groove is provided on one side of the sealing plate 67, a sealing strip 671 is fixed on the sealing groove, and the sealing strip 671 is movably connected to the corresponding sealing plate 67; a ring groove B is provided on the surface of the connecting ring block 601 at a position relative to the sealing plate 67, a sealing ring B6011 is fixed on the ring groove B, and the centripetal ends of several sealing plates 67 are movably connected to the surface of the sealing ring B6011; Among them, the sealing ring A631, the sealing strip 671 and the sealing ring B6011 are all made of polytetrafluoroethylene. The present invention provides the sealing ring A631, the sealing strip 671 and the sealing ring B6011, so that when the sealing plates 67 are in a closed state, the sealing effect is better, and the polytetrafluoroethylene material is a known sealing ring material with the smallest friction coefficient, and the friction coefficient is very low, which is convenient for adjusting the opening and closing states of the sealing plates 67, and the polytetrafluoroethylene can withstand the erosion of most chemical substances such as strong acids, strong alkalis, oxidants and reducing agents, thereby extending its service life.

[0031] In the embodiment of the present invention, the stirring mechanism B8 includes an inner gear ring 81 and a plurality of slide rails 89. The inner gear ring 81 is arranged in the heating tube B7. Both ends of the inner gear ring 81 are rotatably connected with a disc 82. A central gear 83 is arranged in the gap between the two discs 82. A first rotating rod B84 is fixed on the central gear 83. Both ends of the first rotating rod B84 are rotatably connected with the two discs 82 respectively. The top end of the first rotating rod B84 passes through the disc 82 at the top and is fixedly connected to the bottom end of the slide tube 47. The central gear 83 is connected to the inner gear ring 81. The gear B85 is meshed and connected by a plurality of side gears B85 arranged in an annular structure with equal spacing. A second rotating rod B86 is fixed on the gear B85. The two ends of the second rotating rod B86 are respectively connected to the two discs 82 for rotation. The bottom end of the second rotating rod B86 passes through the disc 82 located below and is fixed with a stirring paddle B87. An L-shaped rod 88 is fixed in an annular structure with equal spacing on the outer edge of the inner gear ring 81. A plurality of slide rails 89 are fixed in an annular structure with equal spacing on the top of the heating tube B7. The plurality of L-shaped rods 88 are respectively slidably matched with the plurality of slide rails 89. The present invention sets the stirring mechanism B8 so that the rotation of the central gear 83 can drive the rotation of the plurality of side gears B85.

[0032] In the embodiment of the present invention, the adjustment mechanism 9 includes a bottom circular block 91 and a motor B92. The bottom circular block 91 is fixedly arranged at the bottom end of the heating tube B7. The bottom end of the bottom circular block 91 is fixedly connected to the top end of the base 1. The top end of the base 1 is provided with a motor slot 11. The motor B92 is fixedly arranged in the motor slot 11. The top end of the bottom circular block 91 is fixedly provided with a column 93. The top end of the column 93 is provided with a lifting guide slot 94. The bottom end of the lifting guide slot 94 is provided with a slide slot 95. The slide slot 95 is slidably connected with an arc plate 96. The bottom end of the column 93 is provided with an air gap connected to the slide slot 95. Cavity 97, a threaded column 98 is arranged in the cavity 97, the threaded column 98 is threadedly connected to the inner surface of the arc plate 96, a rotating shaft 99 is fixed at the bottom end of the threaded column 98, the bottom end of the rotating shaft 99 passes through the bottom round block 91 and is fixedly connected to the output shaft of the motor B92, a sleeve B910 is sleeved on the column 93, the top end of the sleeve B910 is fixedly connected to the bottom end of the disc 82 located below, the bottom end of the sleeve B910 is rotatably connected to a movable block 911, the movable block 911 is slidably matched with the slide groove 95, and the movable block 911 is movably matched with the lifting guide groove 94. The invention designs the adjustment mechanism 9 so that the output shaft of the motor B92 can rotate to drive the rotating shaft 99 and the threaded column 98 to rotate, so that the arc plate 96 slides on the slide groove 95, and when the movable block 911 is on the slide groove 95, the sleeve B910 cannot rotate, so that the disc 82 located below cannot rotate. When the arc plate 96 slides upward in the slide groove 95 until the movable block 911 enters the lifting guide groove 94, the rotation of the disc 82 located below drives the sleeve B910 to rotate, so that the movable block 911 enters the lifting guide groove 94 and moves on the lifting guide groove 94.

[0033] The present invention designs the structures of the rotating mechanism 4, the stirring mechanism A5, the stirring mechanism B8 and the adjusting mechanism 9 so that when the movable block 911 is on the slide groove 95, the sleeve B910 cannot rotate, so that the disc 82 located below cannot rotate. At this time, the L-shaped rod 88 and the slide rail 89 are in a disengaged state, the inner gear ring 81 can rotate, and the engaging gear 46 is engaged with the engaging gear ring 49. The rotation of the engaging gear 46 can drive the engaging gear ring 49 and the sleeve A48 to rotate. At this time, the output shaft of the motor A42 is controlled to rotate in the reverse direction through the external control mechanism, and the slide tube 47 drives the slide ring 604 to rotate relative to the rotating groove 603. At this time, the inner gear ring 81 rotates, and the stirring paddles A54 and B87 both rotate, so that the liquids in the two reaction chambers can be stirred for simultaneous preparation of component A and component B. When the arc plate 96 slides upward in the slide groove 95 until the movable block 911 enters the lifting guide groove 94, the L-shaped rod 88 slides into the slide rail 89, so that the inner gear ring 81 cannot rotate. At this time, the output shaft of the motor A42 is controlled by the external control mechanism to rotate in the reverse direction, and the engaging gear 46 is disengaged from the engaging gear ring 49. At this time, the output shaft of the motor A42 is controlled by the external control mechanism to rotate in the reverse direction. When the engaging gear 46 rotates, it will not drive the engaging gear ring 49 and the sleeve A48 to rotate. Therefore, the stirring mechanism A5 will not stir, reducing energy loss. The gear B85 drives the stirring paddle B87 to perform a planetary revolution motion, thereby improving the stirring efficiency, and causing the disk 82 located below to rotate to drive the sleeve B910 to rotate, so that the movable block 911 enters the lifting guide groove 94 and moves on the lifting guide groove 94, causing the entire stirring mechanism B8 to rise and fall, thereby causing the stirring paddle B87 to perform a lifting planetary revolution motion, which is convenient for the full mixing of components A and B, and further improves the mixing efficiency of components A and B, and is used for mixing components A and B to prepare bio-based asparagine polyurea seam sealant products.

[0034] In the embodiment of the present invention, the lifting guide groove 94 includes two thread guide grooves 941 arranged in a symmetrical structure, and the two thread guide grooves 941 are connected through an arc guide groove 942, and the arc guide groove 942 located at the bottom is connected to the slide groove 95. Through the above arrangement, the present invention makes it possible for the sleeve B910 to rise or fall when the movable block 911 moves on the thread guide groove 941, and the position of the sleeve B910 remains unchanged when the movable block 911 moves on the arc guide groove 942. The setting of the arc guide groove 942 makes the movable block 911 move more smoothly in the lifting guide groove 94.

[0035] Working principle: This embodiment provides a method for preparing a bio-based polyurea seam beautifying agent. When in use, component A is prepared in the upper reaction chamber, and component B is prepared in the lower reaction chamber. The output shaft of the motor B92 is controlled to rotate by an external control mechanism, so that the arc plate 96 slides to the bottom of the slide groove 95. The output shaft of the motor A42 is controlled to rotate in the opposite direction by an external control mechanism, and the stirring paddles A54 and B87 are both self-rotating, so that the liquids in the two reaction chambers can be stirred. At this time, the opening and closing mechanism 6 remains in a closed state; After component A and component B are prepared, the output shaft of motor B92 is controlled to rotate by an external control mechanism, so that arc plate 96 slides upward along slide groove 95 to movable block 911 and enters lifting guide groove 94. At this time, L-shaped rod 88 slides into slide rail 89, and the engaging gear 46 is disengaged from the engaging gear ring 49. The output shaft of motor A42 is controlled to rotate in the forward direction by an external control mechanism, and the opening and closing mechanism 6 becomes open. Component A falls into the reaction chamber located below and mixes with component B. The output shaft of motor A42 is controlled to rotate in the reverse direction by an external control mechanism, and stirring mechanism A5 does not stir, thereby reducing energy loss. Stirring paddle B87 performs a lifting planetary revolution motion, which is convenient for the full mixing of component A and component B, and further improves the mixing efficiency of component A and component B.

[0036] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A method for preparing a bio-based polyurea seam beautifying agent, characterized in that: The following steps are involved: S1: Raw material preparation Component A: 75-85 parts of bio-based polyaspartic acid ester resin, 2-5 parts of polyurethane resin, 2-3 parts of epoxy acrylate resin, 0-1 parts of dispersant, 0-1 parts of defoamer, 8-10 parts of compound matte silica, 6-8 parts of hydrophobic fumed silica, 6-8 parts of modified hollow glass microspheres, and 3-6 parts of color paste; Component B: 45-60 parts of bio-based isocyanate prepolymer, 15-30 parts of HDI trimer, 4-8 parts of diaminodicyclohexylmethane, 12-20 parts of isophorone diamine, 3-8 parts of coupling agent, 3-5 parts of hydrophobic fumed silica, 5-10 parts of modified hollow glass microspheres; S2: Preparation of component A: 75-85 parts of bio-based polyaspartic acid ester resin and 2-3 parts of epoxy acrylate resin are placed in one of the reaction chambers of the preparation device for grafting reaction, and then 2-5 parts of polyurethane resin are added for fusion. During the fusion process, 0-1 part of dispersant, 0-1 part of defoaming agent, 8-10 parts of compound matte silica, 6-8 parts of hydrophobic fumed silica, 6-8 parts of modified hollow glass microspheres, and 3-6 parts of color paste are added, and after uniform mixing, component A is obtained; S3: Preparation of component B: Add 45-60 parts of bio-based isocyanate prepolymer, 15-30 parts of HDI trimer, 4-8 parts of diaminodicyclohexylmethane, 12-20 parts of isophorone diamine, 3-8 parts of coupling agent, and 3-5 parts of hydrophobic fumed silica to another reaction chamber of the preparation device and mix them. After the reaction is completed, add 5-10 parts of modified hollow glass microspheres and mix them evenly to obtain component B; S4: Usually, the mass ratio of component A to component B is 1:1-1:1.

2. Component A and component B respectively located in two reaction chambers are collected in one of the reaction chambers, stirred evenly under vacuum conditions, and the air mixed in during the stirring process is removed to obtain a bio-based asparagine polyurea seam beautifying agent product; The preparation device has two reaction chambers. The preparation device comprises a base (1). The top of the base (1) is fixedly provided with an outer tube (2). The outer tube (2) is fixedly provided with a top ring block (21). A heating tube A (3) is fixedly provided on the top of the top ring block (21). A rotating mechanism (4) is provided at the top of the heating tube A (3). A stirring mechanism A (5) is provided inside the heating tube A (3). An opening and closing mechanism (6) is fixedly provided at the bottom of the heating tube A (3). A heating tube B (7) is fixedly provided at the bottom of the opening and closing mechanism (6). A stirring mechanism B (8) is arranged inside the heating tube B (7). An adjusting mechanism (9) is provided at the bottom of the heating tube B (7). The stirring mechanism A (5) The input end and the input end of the stirring mechanism B (8) are both connected to the rotating end of the rotating mechanism (4); one of the reaction chambers is formed by the heating tube A (3), the rotating mechanism (4) and the gap between the opening and closing mechanism (6); the other reaction chamber is formed by the gap between the opening and closing mechanism (6), the heating tube B (7) and the regulating mechanism (9); two feed pipes (22), a discharge pipe (23) and a vacuum tube (24) are fixedly provided on the outer tube (2); the two feed pipes (22) are respectively connected to the top ends of the two reaction chambers; the discharge pipe (23) is connected to the bottom end of the reaction chamber located below; and the vacuum tube (24) is connected to the reaction chamber located above.

2. The method for preparing the bio-based polyurea seam beautifying agent according to claim 1, characterized in that: The rotating mechanism (4) comprises a top round block (41), the top round block (41) is fixedly arranged at the top end of the heating tube A (3), a motor A (42) is fixedly arranged at the top end of the top round block (41), a circular groove (43) is opened in the top round block (41), a connecting rod (44) is rotatably connected to the top end of the circular groove (43), the top end of the connecting rod (44) passes through the top round block (41) and is fixedly connected to the output shaft of the motor A (42), a sliding rod (45) is fixedly arranged at the bottom end of the connecting rod (44), a locking gear (46) is slidably connected to the sliding rod (45), a sliding tube (47) is fixedly arranged at the bottom end of the locking gear (46), a sleeve A (48) is rotatably connected to the bottom end of the circular groove (43), the sleeve A (48) passes through the top round block (41) and is fixedly provided with a locking gear ring (49), and the locking gear ring (49) is engaged with the locking gear (46); The bottom end of the tooth portion of the engaging gear (46) is a pointed structure, and the top end of the tooth portion of the engaging gear ring (49) is a pointed structure.

3. The method for preparing the bio-based polyurea seam beautifying agent according to claim 2, characterized in that: The stirring mechanism A (5) comprises a central gear ring (51) and a plurality of side gears A (52), wherein the central gear ring (51) is fixedly arranged at the top end of the sleeve A (48), and the plurality of side gears A (52) are arranged in the circular groove (43) in a ring-shaped structure with equal spacing, and the side gears A (52) are meshedly connected with the central gear ring (51), and the side gears A (52) are rotatably connected with the circular groove (43) via a rotating rod A (53), and the bottom end of the rotating rod A (53) passes through the top round block (41) and is fixedly provided with a stirring paddle A (54).

4. The method for preparing the bio-based polyurea seam beautifying agent according to claim 3, characterized in that: The opening and closing mechanism (6) comprises a mounting ring block (61), the mounting ring block (61) being fixedly arranged in the outer tube (2), the two ends of the mounting ring block (61) being fixedly connected to the heating tube A (3) and the heating tube B (7) respectively, an annular groove A (62) being provided on the inner edge surface of the mounting ring block (61), a fixing ring block (63) being fixedly arranged at the top end of the annular groove A (62), a plurality of centripetal grooves (64) being provided at the bottom end of the fixing ring block (63) in an annular structure with equal spacing, and an adjusting member being rotatably connected to the bottom end of the annular groove A (62) A ring block (65), wherein the top of the adjusting ring block (65) is provided with a plurality of guide grooves (66) in an annular structure with equal spacing, and a gap between the fixed ring block (63) and the adjusting ring block (65) is provided with a plurality of sealing plates (67) in an annular structure with equal spacing, and any two adjacent sealing plates (67) are movably connected, and a rotating plate (68) is fixedly provided at an eccentric end of the sealing plate (67), and a guide shaft (69) is rotatably connected to the rotating plate (68), and two ends of the guide shaft (69) are rotatably connected to the guide groove (66) and the centripetal groove (64) respectively; The guide grooves (66) are in a V-shaped structure, and any two guide grooves (66) are connected via an arc groove (60).

5. The method for preparing the bio-based polyurea seam beautifying agent according to claim 4, characterized in that: The outer edge surface of the adjusting ring block (65) is provided with triangular grooves A (651) in an annular structure with equal spacing. The depth of the triangular grooves A (651) gradually increases in the counterclockwise direction. The gap between the triangular grooves A (651) and the annular groove A (62) forms a reverse limit cavity. A limit column A (652) is arranged in the limit cavity. A plurality of ball blocks A (653) are movably provided at both ends of the limit column A (652). The ball blocks A (653) are movably connected to the triangular grooves A (651). The limit column A (652) is elastically connected to the deep part of the triangular groove A (651) via a spring A (654).

6. The method for preparing the bio-based polyurea seam beautifying agent according to claim 5, characterized in that: The adjusting ring block (65) is provided with a connecting ring block (601), the outer edge surface of the connecting ring block (601) and the inner edge surface of the adjusting ring block (65) are fixedly connected by a plurality of evenly arranged connecting rods (602), a rotating groove (603) is provided in the connecting ring block (601), a slip ring (604) is rotatably connected to the rotating groove (603), the slip ring (604) is slidably connected to the sliding tube (47), and the outer edge surface of the slip ring (604) has an annular equidistant structure A plurality of triangular grooves B (605) are provided, and the gap between the triangular grooves B (605) and the rotating groove (603) forms a forward limiting cavity, and a limiting column B (606) is provided in the forward limiting cavity, and at least one ball block B (607) is movably provided at both ends of the limiting column B (606), and the ball block B (607) is movably connected to the rotating groove (603), and the limiting column B (606) is elastically connected to the deep part of the triangular groove B (605) through a spring B (608).

7. The method for preparing the bio-based polyurea seam beautifying agent according to claim 6, characterized in that: A ring groove X is formed on the centripetal side of the bottom end of the fixed ring block (63), a sealing ring A (631) is fixedly disposed on the ring groove X, and the sealing ring A (631) is movably connected to the top end of the sealing plate (67); The sealing plate (67) is in a fan-shaped structure, a sealing groove is provided on one side of the sealing plate (67), a sealing strip (671) is fixedly provided on the sealing groove, and the sealing strip (671) is movably connected to the corresponding sealing plate (67); A ring groove B is provided on the surface of the connecting ring block (601) at a position relative to the sealing plate (67), a sealing ring B (6011) is fixedly provided on the ring groove B, and the centripetal ends of the sealing plates (67) are movably connected to the surface of the sealing ring B (6011); Wherein, the sealing ring A (631), the sealing strip (671) and the sealing ring B (6011) are all made of polytetrafluoroethylene.

8. The method for preparing the bio-based polyurea seam beautifying agent according to claim 7, characterized in that: The stirring mechanism B (8) comprises an inner gear ring (81) and a plurality of slide rails (89). The inner gear ring (81) is arranged in the heating tube B (7). Both ends of the inner gear ring (81) are rotatably connected to disks (82). A central gear (83) is arranged in the gap between the two disks (82). A first rotating rod B (84) is fixedly arranged on the central gear (83). Both ends of the first rotating rod B (84) are rotatably connected to the two disks (82). The top end of the first rotating rod B (84) passes through the disks (82) at the top and is fixedly connected to the bottom end of the slide tube (47). The central gear (83) is connected to the inner gear ring (81). ) are meshed and connected through a plurality of side gears B (85) arranged in an annular equidistant structure, a second rotating rod B (86) is fixedly provided on the gear B (85), two ends of the second rotating rod B (86) are respectively rotatably connected to the two disks (82), the bottom end of the second rotating rod B (86) passes through the disk (82) located below and is fixedly provided with a stirring paddle B (87), an L-shaped rod (88) is fixedly provided on the outer edge surface of the inner gear ring (81) in an annular equidistant structure, a plurality of the slide rails (89) are fixedly provided on the top end of the heating tube B (7) in an annular equidistant structure, and the plurality of the L-shaped rods (88) are respectively slidably matched with the plurality of the slide rails (89).

9. The method for preparing the bio-based polyurea seam beautifying agent according to claim 8, characterized in that: The adjusting mechanism (9) comprises a bottom circular block (91) and a motor B (92), wherein the bottom circular block (91) is fixedly arranged at the bottom end of the heating tube B (7), the bottom end of the bottom circular block (91) is fixedly connected to the top end of the base (1), the top end of the base (1) is provided with a motor slot (11), the motor B (92) is fixedly arranged in the motor slot (11), the top end of the bottom circular block (91) is fixedly provided with a column (93), the top end of the column (93) is provided with a lifting guide slot (94), the bottom end of the lifting guide slot (94) is provided with a slide slot (95), the slide slot (95) is slidably connected with an arc plate (96), and the bottom end of the column (93) is provided with a cavity (97) connected to the slide slot (95). ), a threaded column (98) is arranged in the cavity (97), the threaded column (98) is threadedly connected to the inner surface of the arc plate (96), a rotating shaft (99) is fixedly arranged at the bottom end of the threaded column (98), the bottom end of the rotating shaft (99) passes through the bottom round block (91) and is fixedly connected to the output shaft of the motor B (92), a sleeve B (910) is sleeved on the column (93), the top end of the sleeve B (910) is fixedly connected to the bottom end of the disc (82) located below, and the bottom end of the sleeve B (910) is rotatably connected to a movable block (911), the movable block (911) is slidably matched with the slide groove (95), and the movable block (911) is movably matched with the lifting guide groove (94).

10. The method for preparing the bio-based polyurea seam beautifying agent according to claim 9, characterized in that: The lifting guide groove (94) comprises two thread guide grooves (941) arranged in a symmetrical structure, the two thread guide grooves (941) are connected via an arc guide groove (942), and the arc guide groove (942) at the bottom is connected to the slide groove (95).

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