CN115487747A - Heat-insulation powder coating preparation device and preparation method thereof - Google Patents
Heat-insulation powder coating preparation device and preparation method thereof Download PDFInfo
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- CN115487747A CN115487747A CN202211153067.XA CN202211153067A CN115487747A CN 115487747 A CN115487747 A CN 115487747A CN 202211153067 A CN202211153067 A CN 202211153067A CN 115487747 A CN115487747 A CN 115487747A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/22—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by pressing in moulds or between rollers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a heat-insulation and heat-preservation powder coating preparation device and a preparation method thereof, and relates to the technical field of powder coating production, and the heat-insulation and heat-preservation powder coating preparation device comprises a rack, a mounting plate and a pressing roller, wherein the mounting plate is connected to two sides of the upper end of the rack, the pressing roller is rotatably connected to the mounting plate through a bearing, two sides of the pressing roller are respectively provided with a water inlet and a water outlet for cooling water circulation, the rack is also provided with a pressing sheet driving mechanism for driving the pressing roller to rotate, and the mounting plate is provided with a water removing mechanism for removing condensed water on the surface of the pressing roller.
Description
Technical Field
The invention relates to the technical field of powder coating production, in particular to a heat-insulation powder coating preparation device and a preparation method thereof.
Background
The powder coating is a solid powder synthetic resin coating composed of solid resin, pigment, filler, assistant and the like, is different from common solvent type coatings and water-based coatings, has the characteristics of no solvent pollution, 100 percent film forming, low energy consumption and the like because the dispersion medium is not solvent and water but air, and has certain heat insulation performance, thereby being widely applied to the fields of automobile, ship industry, pipeline industry and the like.
Powder coating's manufacturing procedure mainly is raw materials mixture, hot melt extrusion, preforming cooling and broken crocus process, when carrying out raw materials preforming cooling treatment, need use preforming cooling arrangement, and this equipment extrudes the piece through two preforming rollers to the raw materials under the hot melt state to through letting in the cooling water circulation in to the preforming roller, make raw materials cooling solidification, so that subsequent broken crocus processing. When cooling water is introduced into the sheeting roller for circulation, the temperature of the surface of the sheeting roller is lower than the normal temperature, condensed water can appear on the surface of the sheeting roller, and the condensed water is mixed into the raw materials to cause the defects of coating shrinkage and the like of the coating, thereby influencing the production quality of the powder coating. Therefore, a device and a method for preparing a heat-insulating powder coating are needed to solve the above problems.
Disclosure of Invention
The invention aims to provide a heat-insulation powder coating preparation device and a preparation method thereof, which aim to solve the problems in the prior art proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a thermal-insulated heat preservation powder coating preparation facilities, includes frame, mounting panel and preforming roller, the mounting panel is connected in the upper end both sides position of frame, the preforming roller passes through the bearing and rotates to be connected on the mounting panel, the both sides of preforming roller are provided with water inlet and the delivery port that is used for cooling water circulation respectively, still install in the frame and be used for driving preforming roller pivoted preforming actuating mechanism, be provided with the dewatering mechanism who is used for getting rid of preforming roller surface comdenstion water on the mounting panel, install the drainage mechanism who is used for extruding the comdenstion water in the dewatering mechanism, be provided with on the mounting panel and be used for driving dewatering mechanism pivoted rotary driving mechanism, still be provided with the turn-over mechanism who is used for driving dewatering mechanism operation on the mounting panel.
Preferably, preforming actuating mechanism includes driving motor, reversing gear and driven gear, driving motor installs in the frame, the epaxial key joint of the preforming roller of one side has driven gear on the mounting panel, there is the reversing gear who meshes mutually with driven gear through the hub connection on the mounting panel, both are connected through first belt drive with the axle of the preforming roller of opposite side on the mounting panel to the connecting axle of reversing gear, both are connected through second belt drive with driving motor output of the axle of preforming roller.
Preferably, the dewatering mechanism comprises a dewatering box body, a switching plate and a water absorbing block, the dewatering box body is rotatably connected onto the mounting plate, the rotating center of the dewatering box body coincides with the rotating center of the pressing roller, the switching plate is rotatably connected into the dewatering box body, the upper side and the lower side of the switching plate are connected with the water absorbing block, the left side and the right side of the switching plate are connected with sealing blocks, one side of the dewatering box body is connected with a water receiving frame, a water outlet groove is formed in the side wall, located on one side of the water receiving frame, of the dewatering box body, and a water outlet is formed in the water receiving frame.
Preferably, drainage mechanism includes telescopic link, pressurized-water board and drive plate, the flexible sliding connection of telescopic link is on the dewatering box, the lower extreme of telescopic link is connected with and is used for carrying out the extruded pressurized-water board to the water absorption piece, the upper end of telescopic link is connected with the drive plate, the both sides of drive plate are connected with the gyro wheel, be connected with on the mounting panel and be used for leading driven deflector to the telescopic link.
Preferably, the rotary driving mechanism comprises a twisting block, a connecting rod and a first gear, the twisting block is rotatably connected onto the mounting plate, two ends of the twisting block are respectively connected with a dewatering mechanism arranged on two sides of the mounting plate through the connecting rod, the first gear is fixedly connected onto the twisting block, a rack meshed with the first gear is connected onto the mounting plate in a sliding manner, a toothed ring is connected onto the rack, an incomplete gear is connected onto the toothed ring in an engaged manner, and a shaft of the sheeting roller and a shaft of the incomplete gear are in transmission connection through a third belt.
Preferably, the turnover mechanism comprises a second gear and a tooth block, the second gear is connected with a rotating shaft of the switching plate through a one-way bearing, and the mounting plate is fixedly connected with the tooth block meshed with the second gear.
Preferably, the switching plate, the water absorption block and the sealing block are combined to form a cylindrical structure.
The invention also discloses a preparation method of the heat-insulation powder coating, which comprises the following steps:
s1: taking the following raw materials in parts by weight: 60-70 parts of thermoplastic polyester resin, 0.5-1 part of butyl methacrylate, 1-1.5 parts of polyethylene wax, 1-2 parts of potassium fluoroaluminate, 0.5-0.8 part of ammonium metavanadate, 3-5 parts of kaolin, 0.6-1 part of trimethylolpropane, 2-3 parts of calcium phosphate, 0.1-0.3 part of benzoin, 0.7-2 parts of phosphorous acid bisphenol A ester, 3-6 parts of magnesium strong powder, 1-2 parts of propolis, 1-2 parts of diazolidinyl urea, 0.1-0.2 part of sea buckthorn oil, 10-20 parts of nano kieselguhr, 0.1-0.2 part of polyimide and 2-3 parts of modifying auxiliary agent;
s2: pre-mixing the raw materials in the step S1, and adding the pre-mixed raw materials into an extruder for melt extrusion;
s3: tabletting and cooling the extruded raw materials into a flaky structure by adopting a preparation device, and coarsely crushing the raw materials with the flaky structure;
s4: and finely crushing and sieving the raw materials subjected to the coarse crushing treatment to finally obtain the heat-insulation powder coating.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the removal of condensed water on the surface of the sheeting roller and the discharge of water in the water absorption block can be realized through the arrangement of the water removal mechanism and the water discharge mechanism, and the automatic switching operation of the water absorption block can be realized through the arrangement of the turnover mechanism, so that the automatic and continuous water removal treatment on the surface of the sheeting roller can be realized, and the processing quality of the heat-insulation powder coating is improved.
2. According to the invention, the rotary swing motion of the water removal box body is realized through the arrangement of the rotary driving mechanism, and the extrusion drainage operation of the water absorption blocks is executed when the water outlet groove is inclined downwards, so that the water in the water removal box body flows out more thoroughly, and the residual water is prevented from dripping onto the tabletting rollers when the water absorption blocks are switched, thereby further improving the water removal performance of the preparation device.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 and 3 are schematic diagrams of different view structures of the frame removal part of the present invention.
FIG. 4 is an enlarged view of a portion A of FIG. 3 according to the present invention.
FIG. 5 is an enlarged view of a portion of the structure shown at B in FIG. 3 according to the present invention.
FIG. 6 is a schematic view of the connection between the rotation driving mechanism and the water removing box according to the present invention.
FIG. 7 is a schematic cross-sectional view of a water removing mechanism according to the present invention.
FIG. 8 is an enlarged view of a portion of the structure of FIG. 7 at C according to the present invention.
In the figure: 1. a frame; 2. mounting a plate; 3. a sheeting roller; 4. a tablet press driving mechanism; 41. a drive motor; 42. a reversing gear; 43. a driven gear; 44. a first belt; 45. a second belt; 5. a water removal mechanism; 51. a dewatering box body; 52. a switch board; 53. a water-absorbing block; 54. a sealing block; 55. a water receiving frame; 56. a water outlet groove; 57. a water outlet; 6. a drainage mechanism; 61. a telescopic rod; 62. a water pressing plate; 63. a drive plate; 64. a roller; 65. a guide plate; 7. a rotation driving mechanism; 71. a twisting block; 72. a connecting rod; 73. a first gear; 74. a rack; 75. a toothed ring; 76. an incomplete gear; 77. a third belt; 8. a turn-over mechanism; 81. a second gear; 82. a tooth block.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-8, the present invention provides a technical solution:
the utility model provides a thermal-insulated heat preservation powder coating preparation facilities, includes frame 1, mounting panel 2 and preforming roller 3, mounting panel 2 is connected in the upper end both sides position of frame 1, preforming roller 3 passes through the bearing and rotates to be connected on mounting panel 2, the both sides of preforming roller 3 are provided with water inlet and the delivery port that is used for cooling water circulation respectively, still install in frame 1 and be used for driving preforming roller 3 pivoted preforming actuating mechanism 4, preforming actuating mechanism 4 includes driving motor 41, reversing gear 42 and driven gear 43, driving motor 41 installs in frame 1, the epaxial key-type connection of preforming roller 3 of one side has driven gear 43 on the mounting panel 2, have reversing gear 42 with driven gear 43 looks meshing through the hub connection on mounting panel 2, both axle of reversing gear 42 and the axis of preforming roller 3 of opposite side on mounting panel 2 are connected through first belt 44 transmission, both are connected through second belt 45 transmissions to the axle of preforming roller 3 and the output of driving motor 41, can realize two preforming rollers 3 and rotate in opposite directions through setting up of preforming actuating mechanism 4 to be convenient for squeezing into pieces the raw materials under the molten state.
The mounting plate 2 is provided with a dewatering mechanism 5 for removing condensed water on the surface of the sheeting roller 3, the dewatering mechanism 5 comprises a dewatering box body 51, a switching plate 52 and a water absorbing block 53, the dewatering box body 51 is rotatably connected to the mounting plate 2, the rotation center of the dewatering box body 51 coincides with the rotation center of the sheeting roller 3, the switching plate 52 is rotatably connected in the dewatering box body 51, the upper side and the lower side of the switching plate 52 are connected with the water absorbing blocks 53, the left side and the right side of the switching plate 52 are connected with sealing blocks 54, one side of the dewatering box body 51 is connected with a water receiving frame 55, a water outlet groove 56 is formed in the side wall of the dewatering box body 51 on one side of the water receiving frame 55, a water outlet 57 is formed in the water receiving frame 55, the switching plate 52, the water absorbing blocks 53 and the sealing blocks 54 are combined to form a cylindrical structure, the water absorbing blocks 53 can be made of sponge, cotton and other water absorbing materials, the water outlet groove 56 is arranged at the upper side of the switching plate 52, the water absorbing block 53 on the switching plate 52 can be in contact with the surface of the sheeting roller 3, and the condensed water absorbing and the sheeting roller 3 can be absorbed and removed by the arrangement of the dewatering mechanism 5.
The dewatering mechanism 5 is provided with a drainage mechanism 6 for squeezing out condensed water, the drainage mechanism 6 comprises an expansion link 61, a water pressing plate 62 and a driving plate 63, the expansion link 61 is telescopically and slidably connected to the dewatering box body 51, the lower end of the expansion link 61 is connected with the water pressing plate 62 for squeezing the water suction block 53, the upper end of the expansion link 61 is connected with the driving plate 63, two sides of the driving plate 63 are connected with rollers 64, the mounting plate 2 is connected with a guide plate 65 for guiding and driving the expansion link 61, the guide plate 65 is in a circular arc shape, and when the dewatering box body 51 rotates, the expansion link 61 can generate telescopic motion under the action of the guide plate 65; the water on the water absorbing block 53 can be extruded and discharged through the arrangement of the water discharging mechanism 6, so that the condensed water on the surface of the sheeting roller 3 can be continuously and effectively removed.
Be provided with on the mounting panel 2 and be used for driving dewatering mechanism 5 pivoted rotary driving mechanism 7, rotary driving mechanism 7 is including turning round piece 71, connecting rod 72 and first gear 73, it rotates to connect on mounting panel 2 to turn round piece 71, it is connected respectively in the dewatering mechanism 5 that mounting panel 2 both sides set up through the connecting rod 72 to turn round the both ends of piece 71, first gear 73 fixed connection is on turning round piece 71, sliding connection has the rack 74 with first gear 73 engaged with on mounting panel 2, be connected with ring gear 75 on the rack 74, ring gear 75 inter-engagement is connected with incomplete gear 76, the axle of preforming roller 3 and incomplete gear 76's axle both are connected through the transmission of third belt 77, can drive drainage mechanism 6 and dewatering mechanism 5 through rotary driving mechanism 7's setting and move to realize the continuous dewatering operation on preforming roller 3 surface.
Still be provided with the turn-over mechanism 8 that is used for driving dewatering mechanism 5 operation on the mounting panel 2, turn-over mechanism 8 includes second gear 81 and tooth piece 82, second gear 81 is connected with the pivot of switching board 52 through one-way bearing, fixedly connected with and the tooth piece 82 of second gear 81 looks meshing on the mounting panel 2 can drive switching board 52 intermittent type through the setting of turn-over mechanism 8 and rotate for the piece 53 that absorbs water of both sides switches the board 52 from top to bottom switches.
The invention also provides a preparation method of the heat-insulation powder coating, which comprises the following steps:
s1: taking the following raw materials in parts by weight: 60-70 parts of thermoplastic polyester resin, 0.5-1 part of butyl methacrylate, 1-1.5 parts of polyethylene wax, 1-2 parts of potassium fluoroaluminate, 0.5-0.8 part of ammonium metavanadate, 3-5 parts of kaolin, 0.6-1 part of trimethylolpropane, 2-3 parts of calcium phosphate, 0.1-0.3 part of benzoin, 0.7-2 parts of phosphorous acid bisphenol A ester, 3-6 parts of magnesium strong powder, 1-2 parts of propolis, 1-2 parts of diazolidinyl urea, 0.1-0.2 part of sea buckthorn oil, 10-20 parts of nano kieselguhr, 0.1-0.2 part of polyimide and 2-3 parts of modifying auxiliary agent;
s2: pre-mixing the raw materials in the step S1, and adding the pre-mixed raw materials into an extruder for melt extrusion;
s3: tabletting and cooling the extruded raw materials into a flaky structure by adopting a preparation device, and coarsely crushing the raw materials with the flaky structure;
s4: and finely crushing and sieving the raw materials after the coarse crushing treatment to finally obtain the heat-insulating powder coating.
The powder coating with heat insulation and preservation performances can be prepared by combining the components and the proportion of the raw materials and the preparation method.
The working process of the preparation device is as follows:
through letting in recirculated cooling water in the preforming roller 3, start this preforming cooling arrangement, driving motor 41 drives the preforming roller 3 of one side and rotates on the mounting panel 2 through second belt 45, this preforming roller 3 drives reversing gear 42 through first belt 44 and rotates, make reversing gear 42 drive the preforming roller 3 antiport of opposite side on the mounting panel 2 through driven gear 43, realize two preforming rollers 3's on the mounting panel 2 rotation in opposite directions, pour into the raw materials under the molten condition into between the preforming roller 3, the realization is to the preforming cooling process of powder coating raw materials.
When the tabletting of the powder coating raw material is cooled, the water absorption block 53 on one side of the switching plate 52 is in contact with the surface of the tabletting roller 3, when the tabletting roller 3 rotates, the water absorption block 53 absorbs and removes condensed water on the surface of the tabletting roller 3, when the water absorption block 53 absorbs water to a certain degree, the tabletting roller 3 drives the incomplete gear 76 to rotate through the third belt 77, the incomplete gear 76 drives the rack 74 through the toothed ring 75 to drive the first gear 73 to rotate, so that the torsion block 71 synchronously rotates, the torsion block 71 drives the dewatering box body 51 to mutually approach and rotate through the connecting rod 72, the second gear 81 moves relative to the toothed block 82, so that the second gear 81 rotates to drive the switching plate 52 to rotate 180 degrees, so that the water absorption block 53 on the other side of the switching plate 52 is in contact with the surface of the tabletting roller 3, and at the moment, the sealing blocks 54 on the two horizontal sides of the switching plate 52 are tightly attached to the inner wall of the dewatering box body 51 to play a role of sealing, thereby realizing the switching of the water absorption block 53.
When the twisting block 71 rotates reversely, the twisting block 71 drives the dewatering box bodies 51 on two sides of the mounting plate 2 to rotate away from each other through the first gear 73, so that the roller 64 rolls on the guide plate 65 and is pressed, the drive plate 63 drives the water pressing plate 62 through the telescopic rod 61 to press and drain the water absorbing block 53 on the upper side of the water charging and switching plate 52, extruded water flows into the water receiving frame 55 from the water outlet groove 56 and is discharged from the water outlet 57 on the water receiving frame 55, so that the water in the water absorbing block 53 is pressed and discharged, the water absorbing block 53 is convenient to absorb water for the next time, the continuous dewatering treatment on the surface of the sheeting roller 3 is realized, and the processing quality of the powder coating is ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a thermal-insulated heat preservation powder coating preparation facilities, includes frame (1), mounting panel (2) and preforming roller (3), mounting panel (2) are connected in the upper end both sides position of frame (1), preforming roller (3) are rotated through the bearing and are connected on mounting panel (2), the both sides of preforming roller (3) are provided with water inlet and the delivery port that is used for the cooling water circulation respectively, still install in frame (1) and be used for driving preforming roller (3) pivoted preforming actuating mechanism (4), a serial communication port, be provided with on mounting panel (2) and be used for getting rid of dewatering mechanism (5) surface comdenstion water dewatering mechanism (5), install drainage mechanism (6) that are used for extruding the comdenstion water on dewatering mechanism (5), be provided with on mounting panel (2) and be used for driving dewatering mechanism (5) pivoted rotary driving mechanism (7), still be provided with on mounting panel (2) and be used for driving dewatering mechanism (5) operational turn-over mechanism (8).
2. The heat-insulating powder coating preparation device according to claim 1, wherein: preforming actuating mechanism (4) are including driving motor (41), reversing gear (42) and driven gear (43), driving motor (41) are installed in frame (1), the epaxial key connection of preforming roller (3) of one side has driven gear (43) on mounting panel (2), there is reversing gear (42) with driven gear (43) engaged with through the hub connection on mounting panel (2), both are connected through first belt (44) transmission on the axle of reversing gear (42) and the axle of preforming roller (3) of opposite side on mounting panel (2), the axle and the driving motor (41) output both of preforming roller (3) are connected through second belt (45) transmission.
3. The heat-insulating powder coating preparation device according to claim 1, wherein: the water removal mechanism (5) comprises a water removal box body (51), a switching plate (52) and a water absorption block (53), the water removal box body (51) is rotatably connected onto the mounting plate (2), the rotating center of the water removal box body (51) coincides with the rotating center of the pressing roller (3), the switching plate (52) is rotatably connected into the water removal box body (51), the water absorption block (53) is connected to the upper side and the lower side of the switching plate (52), the sealing blocks (54) are connected to the left side and the right side of the switching plate (52), one side of the water removal box body (51) is connected with a water receiving frame (55), a water outlet groove (56) is formed in the side wall, located on one side of the water receiving frame (55), of the water removal box body (51), and a water outlet (57) is formed in the water receiving frame (55).
4. A thermal insulation powder coating preparation device according to claim 3, characterized in that: drainage mechanism (6) include telescopic link (61), pressurized-water board (62) and drive plate (63), the flexible sliding connection of telescopic link (61) is on dewatering box (51), the lower extreme of telescopic link (61) is connected with and is used for carrying out extruded pressurized-water board (62) to water absorption piece (53), the upper end of telescopic link (61) is connected with drive plate (63), the both sides of drive plate (63) are connected with gyro wheel (64), be connected with on mounting panel (2) and be used for leading driven deflector (65) to telescopic link (61).
5. The heat-insulating powder coating preparation device according to claim 2, characterized in that: the rotary driving mechanism (7) comprises a twisting block (71), a connecting rod (72) and a first gear (73), the twisting block (71) is rotatably connected onto the mounting plate (2), two ends of the twisting block (71) are respectively connected with a water removal mechanism (5) arranged on two sides of the mounting plate (2) through the connecting rod (72), the first gear (73) is fixedly connected onto the twisting block (71), a rack (74) meshed with the first gear (73) is connected onto the mounting plate (2) in a sliding mode, a toothed ring (75) is connected onto the rack (74), an incomplete gear (76) is connected onto the toothed ring (75) in an inner meshing mode, and a shaft of the sheeting roller (3) and a shaft of the incomplete gear (76) are in transmission connection through a third belt (77).
6. A thermal insulation powder coating preparation device according to claim 3, characterized in that: the turnover mechanism (8) comprises a second gear (81) and a tooth block (82), the second gear (81) is connected with a rotating shaft of the switching plate (52) through a one-way bearing, and the tooth block (82) meshed with the second gear (81) is fixedly connected to the mounting plate (2).
7. A thermal insulation powder coating preparation device according to claim 3, characterized in that: the switching plate (52), the water absorption block (53) and the sealing block (54) are combined to form a cylindrical structure.
8. A method for preparing a heat-insulating powder coating by using the preparation device of any one of claims 1 to 7, which is characterized by comprising the following steps:
s1: taking the following raw materials in parts by weight: 60-70 parts of thermoplastic polyester resin, 0.5-1 part of butyl methacrylate, 1-1.5 parts of polyethylene wax, 1-2 parts of potassium fluoroaluminate, 0.5-0.8 part of ammonium metavanadate, 3-5 parts of kaolin, 0.6-1 part of trimethylolpropane, 2-3 parts of calcium phosphate, 0.1-0.3 part of benzoin, 0.7-2 parts of phosphorous acid bisphenol A ester, 3-6 parts of magnesium strong powder, 1-2 parts of propolis, 1-2 parts of diazolidinyl urea, 0.1-0.2 part of sea buckthorn oil, 10-20 parts of nano kieselguhr, 0.1-0.2 part of polyimide and 2-3 parts of modifying auxiliary agent;
s2: pre-mixing the raw materials in the step S1, and adding the pre-mixed raw materials into an extruder for melt extrusion;
s3: tabletting and cooling the extruded raw materials into a flaky structure by adopting a preparation device, and coarsely crushing the raw materials with the flaky structure;
s4: and finely crushing and sieving the raw materials after the coarse crushing treatment to finally obtain the heat-insulating powder coating.
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