CN115487747B

CN115487747B - Preparation device and preparation method of heat-insulating powder coating

Info

Publication number: CN115487747B
Application number: CN202211153067.XA
Authority: CN
Inventors: 叶名昇; 叶刚
Original assignee: Anhui Sunroad Environmental Material Co ltd
Current assignee: Anhui Sunroad Environmental Material Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-04-21
Anticipated expiration: 2042-09-21
Also published as: CN115487747A

Abstract

The invention discloses a preparation device and a preparation method of a heat-insulating powder coating, and relates to the technical field of powder coating production, the preparation device comprises a frame, a mounting plate and a tabletting roller, wherein the mounting plate is connected to two sides of the upper end of the frame, the tabletting roller is rotationally connected to the mounting plate through a bearing, a water inlet and a water outlet for cooling water circulation are respectively arranged on two sides of the tabletting roller, a tabletting driving mechanism for driving the tabletting roller to rotate is further arranged on the frame, and a water removing mechanism for removing condensed water on the surface of the tabletting roller is arranged on the mounting plate.

Description

Preparation device and preparation method of heat-insulating powder coating

Technical Field

The invention relates to the technical field of powder coating production, in particular to a preparation device and a preparation method of heat-insulating powder coating.

Background

The powder paint is a solid powder synthetic resin paint composed of solid resin, pigment, filler, auxiliary agent and the like, and different from the common solvent paint and water paint, the dispersion medium of the powder paint is not solvent and water, but air, and the powder paint has the characteristics of no solvent pollution, 100% film formation, low energy consumption and the like, and has certain heat insulation performance, so the powder paint is widely applied to the fields of automobiles, ship industry, pipeline industry and the like.

The processing procedure of powder coating mainly comprises the procedures of raw material mixing, hot melt extrusion, tabletting cooling and crushing and grinding, and when the raw material tabletting cooling treatment is carried out, tabletting cooling equipment is needed, the equipment extrudes the raw material in a hot melt state into tablets through two tabletting rollers, and cooling water circulation is introduced into the tabletting rollers, so that the raw material is cooled and solidified, and the subsequent crushing and grinding processing is facilitated. When cooling water is introduced into the tabletting roller for circulation, the temperature of the surface of the tabletting roller is lower than the normal temperature, condensed water can appear on the surface of the tabletting roller, and the condensed water is mixed into the raw materials to cause defects of film shrinkage and the like of the coating, thereby influencing the production quality of the powder coating. Therefore, there is a need for an apparatus for preparing a heat-insulating powder coating and a method for preparing the same, which solve the above problems.

Disclosure of Invention

The invention aims to provide a preparation device and a preparation method of a heat-insulating powder coating, which are used for solving the problems in the prior art in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

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 are 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 that is used for getting rid of preforming roller surface comdenstion water on the mounting panel, install the drainage mechanism that is used for extruding the comdenstion water on 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 that is used for driving dewatering mechanism to move on the mounting panel.

Preferably, the tabletting driving mechanism comprises a driving motor, a reversing gear and a driven gear, the driving motor is arranged on the frame, the driven gear is connected with an on-axis key of the tabletting roller on one side of the mounting plate, the reversing gear meshed with the driven gear is connected on the mounting plate through a shaft, a connecting shaft of the reversing gear is connected with a shaft of the tabletting roller on the other side of the mounting plate through a first belt transmission, and the shaft of the tabletting roller is connected with an output end of the driving motor through a second belt transmission.

Preferably, the dewatering mechanism comprises a dewatering box body, a switching plate and a water absorption block, wherein the dewatering box body is rotationally connected to the mounting plate, the rotation center of the dewatering box body is coincident with the rotation center of the tabletting roller, the switching plate is rotationally connected to the dewatering box body, the water absorption block is connected to the upper side and the lower side of the switching plate, the sealing blocks are connected to the left side and the right side of the switching plate, a water receiving frame is connected to one side of the dewatering box body, a water outlet groove is formed in the side wall of the water receiving frame, and a water outlet is formed in the water receiving frame.

Preferably, the drainage mechanism comprises a telescopic rod, a water pressing plate and a driving plate, wherein the telescopic rod is connected to the water removing box in a telescopic sliding mode, the lower end of the telescopic rod is connected with the water pressing plate used for extruding the water absorbing block, the upper end of the telescopic rod is connected with the driving plate, two sides of the driving plate are connected with rollers, and a guide plate used for guiding and driving the telescopic rod is connected to the mounting plate.

Preferably, the rotary driving mechanism comprises a torsion block, a connecting rod and a first gear, the torsion block is rotationally connected to the mounting plate, two ends of the torsion block are respectively connected with water removing mechanisms arranged on two sides of the mounting plate through the connecting rod, the first gear is fixedly connected to the torsion block, a rack meshed with the first gear is connected to the mounting plate in a sliding manner, a toothed ring is connected to the rack, an incomplete gear is connected to the toothed ring in an inner meshing manner, and a shaft of the tabletting roller and a shaft of the incomplete gear are connected through a third belt in a transmission manner.

Preferably, the turnover mechanism comprises a second gear and a tooth block, the second gear is connected with the rotating shaft of the switching plate through a one-way bearing, and the tooth block meshed with the second gear is fixedly connected to the mounting plate.

Preferably, the switching plate, the water absorbing block and the sealing block are combined to form a cylindrical structure.

The invention also discloses a preparation method of the heat-insulating powder coating, which comprises the following steps:

s1: the raw materials with the following parts by weight are taken: 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 bisphenol A phosphite, 3-6 parts of magnesium strong powder, 1-2 parts of propolis, 1-2 parts of bisimidazolidinyl urea, 0.1-0.2 part of sea buckthorn oil, 10-20 parts of nano diatomite, 0.1-0.2 part of polyimide and 2-3 parts of a modifying auxiliary agent;

s2: premixing the raw materials in the step S1, and adding the premixed raw materials into an extruder for melt extrusion;

s3: adopting a preparation device to carry out tabletting and cooling on the extruded raw materials to form a sheet-shaped structure, and carrying out coarse crushing treatment on the raw materials with the sheet-shaped structure;

s4: finely pulverizing and sieving the raw materials after the coarse pulverization treatment to finally obtain the heat-insulating powder coating.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the condensed water on the surface of the tabletting roller and the water in the water absorption blocks can be removed through the arrangement of the water removing mechanism and the water draining mechanism, and the automatic switching operation of the water absorption blocks can be realized through the arrangement of the turn-over mechanism, so that the automatic and continuous water removing treatment on the surface of the tabletting roller can be realized, and the processing quality of the heat-insulating powder coating is improved.

2. According to the invention, the rotary swinging motion of the water removing tank body is realized through the arrangement of the rotary driving mechanism, and the squeezing and draining operation on the water absorbing block is set to be executed when the water outlet tank is inclined downwards, so that water in the water removing tank body flows out more thoroughly, and residual water drops are prevented from flowing onto the tabletting rollers when the water absorbing block is switched, thereby further improving the water removing performance of the preparation device.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 and 3 are schematic views of the structure of the invention from different view angles with the frame removed.

Fig. 4 is a schematic view of a partial enlarged structure at a in fig. 3 according to the present invention.

Fig. 5 is a schematic view of a partial enlarged structure at B in fig. 3 according to the present invention.

FIG. 6 is a schematic diagram of the connection of the rotary driving mechanism and the water removal tank.

FIG. 7 is a schematic cross-sectional view of a water removal mechanism according to the present invention.

Fig. 8 is a schematic view of a partially enlarged structure at C in fig. 7 according to the present invention.

In the figure: 1. a frame; 2. a mounting plate; 3. a sheeting roller; 4. a sheeting driving mechanism; 41. a driving motor; 42. a reversing gear; 43. a driven gear; 44. a first belt; 45. a second belt; 5. a water removal mechanism; 51. a water removal tank body; 52. a switching board; 53. a water absorption block; 54. a sealing block; 55. a water receiving frame; 56. a water outlet tank; 57. a water outlet; 6. a drainage mechanism; 61. a telescopic rod; 62. a water pressing plate; 63. a driving plate; 64. a roller; 65. a guide plate; 7. a rotary driving mechanism; 71. twisting the 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. tooth blocks.

Detailed Description

The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

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, the preforming roller 3 passes through the bearing rotation and connects 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 on 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 on frame 1, the epaxial key of preforming roller 3 of one side on mounting panel 2 is connected with driven gear 43, be connected with the reversing gear 42 with driven gear 43 through the hub connection on mounting panel 2, reversing gear 42's connecting axle and the epaxial both of preforming roller 3 of opposite side on mounting panel 2 pass through first belt 44 transmission connection, the axle of preforming roller 3 and driving motor 41 output are connected through the transmission of second belt 45, can realize through the setting up of preforming actuating mechanism 4 that two preforming rollers 3 are relative to be rotated to be convenient for carry out the extrusion raw materials under the condition of being convenient for.

The utility model discloses a tablet compression roller, including mounting panel 2, mounting panel 2 is provided with the dewatering mechanism 5 that is used for getting rid of tablet compression roller 3 surface comdenstion water, dewatering mechanism 5 includes dewatering box 51, switching plate 52 and water absorption piece 53, dewatering box 51 rotates to be connected on mounting panel 2, and the rotation center of dewatering box 51 coincides with tablet compression roller 3's rotation center, switching plate 52 rotates to be connected in dewatering box 51, switching plate 52's upper and lower both sides are connected with water absorption piece 53, switching plate 52's left and right sides is connected with sealing block 54, one side of dewatering box 51 is connected with water receiving frame 55, dewatering box 51 is provided with out basin 56 on the lateral wall of water receiving frame 55 one side, be provided with outlet 57 on the water receiving frame 55, the combination constitutes cylindrical structure between switching plate 52, water absorption piece 53 can adopt sponge, cotton material etc. to make, and water absorption piece 53 on the switching plate 52 can contact with tablet compression roller 3 surface through setting up the water absorption piece 53 that can get rid of tablet compression roller 3 surface through setting up of water receiving frame 55.

The water removing mechanism 5 is provided with a water discharging mechanism 6 for extruding condensed water, the water discharging mechanism 6 comprises a telescopic rod 61, a water pressing plate 62 and a driving plate 63, the telescopic rod 61 is connected to the water removing box 51 in a telescopic sliding mode, the lower end of the telescopic rod 61 is connected with the water pressing plate 62 for extruding the water absorbing block 53, the upper end of the telescopic rod 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 telescopic rod 61, the structural shape of the guide plate 65 is arc-shaped, and when the water removing box 51 rotates, the telescopic rod 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.

The rotary driving mechanism 7 for driving the water removing mechanism 5 to rotate is arranged on the mounting plate 2, the rotary driving mechanism 7 comprises a torsion block 71, a connecting rod 72 and a first gear 73, the torsion block 71 is rotationally connected to the mounting plate 2, two ends of the torsion block 71 are respectively connected with the water removing mechanisms 5 arranged on two sides of the mounting plate 2 through the connecting rod 72, the first gear 73 is fixedly connected to the torsion block 71, a rack 74 meshed with the first gear 73 is slidably connected to the mounting plate 2, a toothed ring 75 is connected to the rack 74, an incomplete gear 76 is connected to the toothed ring 75 in an internal meshing manner, and the shaft of the tabletting roller 3 and the shaft of the incomplete gear 76 are in transmission connection through a third belt 77, and the water draining mechanism 6 and the water removing mechanism 5 can be driven to operate through the arrangement of the rotary driving mechanism 7, so that continuous operation on the surface of the tabletting roller 3 is realized.

The mounting plate 2 is further provided with a turn-over mechanism 8 for driving the water removal mechanism 5 to operate, the turn-over 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, the mounting plate 2 is fixedly connected with the tooth block 82 meshed with the second gear 81, the switching plate 52 can be driven to intermittently rotate through the arrangement of the turn-over mechanism 8, and the water absorption blocks 53 on the upper side and the lower side of the switching plate 52 are switched.

The invention also provides a preparation method of the heat-insulating powder coating, which comprises the following steps:

The powder coating with heat insulation performance 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 in the invention is as follows:

through letting in circulating cooling water to preforming roller 3, start this preforming cooling device, driving motor 41 drives the preforming roller 3 rotation of one side on the mounting panel 2 through second belt 45, this preforming roller 3 drives reversing gear 42 through first belt 44 and rotates for reversing gear 42 passes through the reverse rotation of preforming roller 3 of opposite side on the driven gear 43 drive mounting panel 2, realizes the opposite rotation of two preforming rollers 3 on the mounting panel 2, injects the raw materials under the molten state between the preforming roller 3, realizes the preforming cooling processing to powder coating raw materials.

When the powder coating raw material is pressed and cooled, the water absorbing block 53 on one side of the switching plate 52 is in contact with the surface of the pressing roller 3, and when the pressing roller 3 rotates, the water absorbing block 53 absorbs and removes condensed water on the surface of the pressing roller 3, and when the water absorbing block 53 absorbs water to a certain extent, the pressing roller 3 drives the incomplete gear 76 to rotate through the third belt 77, the incomplete gear 76 drives the rack 74 to drive the first gear 73 to rotate through the toothed ring 75, so that the torsion block 71 synchronously rotates, the water removing box 51 is driven by the torsion block 71 to mutually 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, the water absorbing block 53 on the other side of the switching plate 52 is in contact with the surface of the pressing roller 3, and at the moment, the sealing blocks 54 on two horizontal sides of the switching plate 52 are tightly attached to the inner wall of the water removing box 51 to play a sealing role, so that the switching of the water absorbing block 53 is realized.

When the torsion block 71 reversely rotates, the torsion block 71 drives the water removal boxes 51 on two sides of the mounting plate 2 to mutually 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 driving plate 63 drives the water pressing plate 62 to squeeze and drain the water absorption block 53 on the upper side of the charging and switching plate 52 through the telescopic rod 61, so that squeezed 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, water in the water absorption block 53 is squeezed and discharged, the next water absorption use of the water absorption block 53 is facilitated, continuous water removal treatment on the surface of the tabletting roller 3 is realized, and the processing quality of powder paint is ensured.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

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 respectively and are used for cooling water endless water inlet and delivery port, still install preforming actuating mechanism (4) that are used for driving preforming roller (3) pivoted on frame (1), a serial communication port, be provided with on mounting panel (2) and be used for getting rid of water removal mechanism (5) of preforming roller (3) surface comdenstion water, install on water removal mechanism (5) and be used for extruding water removal mechanism (6), be provided with on mounting panel (2) and be used for driving water removal mechanism (5) pivoted rotary driving mechanism (7), still be provided with on mounting panel (2) and be used for driving water removal mechanism (5) pivoted turn over face mechanism (8);

the dewatering mechanism (5) comprises a dewatering box body (51), a switching plate (52) and a water absorption block (53), wherein the dewatering box body (51) is rotationally connected to the mounting plate (2), the rotation center of the dewatering box body (51) is coincident with that of the tabletting roller (3), the switching plate (52) is rotationally connected to the dewatering 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), a water receiving frame (55) is connected to one side of the dewatering box body (51), a water outlet groove (56) is formed in the side wall of the water receiving frame (55), and a water outlet (57) is formed in the water receiving frame (55).

The drainage mechanism (6) comprises a telescopic rod (61), a water pressing plate (62) and a driving plate (63), wherein the telescopic rod (61) is connected to the water removal box body (51) in a telescopic sliding mode, the lower end of the telescopic rod (61) is connected with the water pressing plate (62) used for extruding the water absorption block (53), the upper end of the telescopic rod (61) is connected with the driving plate (63), two sides of the driving plate (63) are connected with rollers (64), and the mounting plate (2) is connected with a guide plate (65) used for guiding and driving the telescopic rod (61);

the rotary driving mechanism (7) comprises a torsion block (71), a connecting rod (72) and a first gear (73), wherein the torsion block (71) is rotationally connected to the mounting plate (2), two ends of the torsion block (71) are respectively connected with water removing mechanisms (5) arranged on two sides of the mounting plate (2) through the connecting rod (72), the first gear (73) is fixedly connected to the torsion block (71), a rack (74) meshed with the first gear (73) is slidingly connected to the mounting plate (2), a toothed ring (75) is connected to the rack (74), an incomplete gear (76) is connected to the toothed ring (75) in an internal meshing manner, and a shaft of the tabletting roller (3) and a shaft of the incomplete gear (76) are in transmission connection through a third belt (77);

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 mounting plate (2) is fixedly connected with the tooth block (82) meshed with the second gear (81).

2. The heat insulation powder coating preparation device according to claim 1, wherein: the tablet driving mechanism (4) comprises a driving motor (41), a reversing gear (42) and a driven gear (43), wherein the driving motor (41) is installed on the frame (1), the driven gear (43) is connected with an on-axis key of a tablet roller (3) on one side of the mounting plate (2), the reversing gear (42) meshed with the driven gear (43) is connected on the mounting plate (2) through an axle, a connecting shaft of the reversing gear (42) is in transmission connection with an axle of the tablet roller (3) on the other side of the mounting plate (2) through a first belt (44), and the axle of the tablet roller (3) is in transmission connection with an output end of the driving motor (41) through a second belt (45).

3. The heat insulation powder coating preparation device according to claim 1, wherein: the switching plate (52), the water absorbing block (53) and the sealing block (54) are combined to form a cylindrical structure.

4. A method for preparing a heat-insulating powder coating by using the preparation device of any one of claims 1 to 3, comprising the following steps: