CN114292566A - Powder coating production process - Google Patents
Powder coating production process Download PDFInfo
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- CN114292566A CN114292566A CN202210047312.2A CN202210047312A CN114292566A CN 114292566 A CN114292566 A CN 114292566A CN 202210047312 A CN202210047312 A CN 202210047312A CN 114292566 A CN114292566 A CN 114292566A
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Abstract
The invention relates to the technical field of paint production, in particular to a powder paint production process; the process comprises the following steps: proportioning the raw materials according to a proportion; step two: mixing the raw materials to be uniform by stirring, adding an emulsifier and a defoaming agent, and standing for 15-35 minutes; step three: evaporating water from the raw materials after standing to obtain a solid coating; step four: crushing the solid coating to obtain a small-particle powder coating; step five: processing the large-particle powder generated in the crushing again to obtain a small-particle powder coating; the powder coating can be prepared more efficiently.
Description
Technical Field
The invention relates to the technical field of paint production, in particular to a powder paint production process.
Background
The powder coating is a novel, solvent-free, pure solid powder coating consisting of a polymer, a pigment and an additive; the method has the characteristics of no use of solvent, no pollution, energy and resource saving, labor intensity reduction, high mechanical strength of film coating and the like. The powder coating has high utilization rate because volatile organic compounds are not discharged, and the development speed of the powder coating in the world is very high in the past 10 years, but the existing powder coating needs many processes in the production process, such as raw material preparation, powder preparation and the like, and the processes are complicated and can be completed only by corresponding production equipment; such a method produces powder coatings inefficiently.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a powder coating production process, which can be used for preparing the powder coating more efficiently.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a powder coating production process comprises the following steps:
the method comprises the following steps: proportioning the raw materials according to a proportion;
step two: mixing the raw materials to be uniform by stirring, adding an emulsifier and a defoaming agent, and standing for 15-35 minutes;
step three: evaporating water from the raw materials after standing to obtain a solid coating;
step four: crushing the solid coating to obtain a small-particle powder coating;
step five: the large-particle powder produced during the pulverization is processed again to obtain a small-particle powder coating.
In the step one, the raw materials comprise epoxy resin, a curing agent, pigment, barium sulfate, low acid value polyester resin, calcium carbonate and titanium dioxide.
The raw materials comprise the following components in parts by volume: 5 parts of epoxy resin; 1 part of a curing agent; 1 part of pigment; 2 parts of barium sulfate; 5 parts of low-acid-value polyester resin; 3 parts of calcium carbonate; and 3 parts of titanium dioxide.
Further the powder coating production process still uses a powder coating apparatus, the apparatus includes two mixing portions, the mixing portion includes the center pillar that rotates and has a plurality of side levers to and supply the rotatory inner panel of center pillar, and the drum of cover on the inner panel.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a flow chart of a powder coating production process according to the present invention;
FIG. 2 is a schematic view of the structure of a production apparatus of the present invention;
FIG. 3 is a schematic view of the mixing section of the present invention;
FIG. 4 is a schematic view showing the structure of the mixing section in another direction according to the present invention;
FIG. 5 is a schematic structural view of a center pillar and a side pillar in the present invention;
FIG. 6 is a schematic structural view of the inner plate and the ring of the present invention;
FIG. 7 is a schematic view of the structure of the cross member and the shelf of the present invention;
FIG. 8 is a schematic structural view of a center shaft and a bump according to the present invention;
FIG. 9 is a schematic view of the structure of the chute and screen deck of the present invention;
FIG. 10 is a schematic view of the base and lead screw of the present invention;
fig. 11 is a schematic structural view of a screw rod and a shifting piece in the invention.
Detailed Description
Referring to FIG. 1, according to the production process of obtaining the powder coating shown in the figure, firstly, 5 parts of epoxy resin, curing agent, pigment, barium sulfate, low acid value polyester resin, calcium carbonate and titanium dioxide are taken as parts by volume; 1 part of a mixture of ethylenediamine and triethylene tetramine; 1 part of pigment; 2 parts of barium sulfate; 5 parts of low-acid-value polyester resin; 3 parts of calcium carbonate; proportioning 3 parts of titanium dioxide; then stirring the raw materials for 20 minutes under the condition of 1000r/min to enable the raw materials to be mixed to be in a uniform state, adding an emulsifier and a defoaming agent during stirring, and standing for 20 minutes after stirring; then evaporating the water of the raw materials after standing in a heating mode to obtain a solid coating; finally, crushing the solid coating to obtain powder coating with the particle size of 5 meshes; at the same time, the powder with the grain diameter larger than 5 meshes generated in the grinding process can be processed again until the grain diameter is processed to 5 meshes.
Referring to fig. 1, according to another production process for obtaining powder coating shown in the figure, firstly, 5 parts of epoxy resin, curing agent, pigment, barium sulfate, low acid value polyester resin, calcium carbonate and titanium dioxide are taken as epoxy resin according to volume parts; 1 part of vinyl triamine and 1 part of ethylene diamine; 1 part of pigment; 2 parts of barium sulfate; 5 parts of low-acid-value polyester resin; 3 parts of calcium carbonate; proportioning 3 parts of titanium dioxide; then stirring the raw materials for 15 minutes under the condition of 1100r/min to enable the raw materials to be mixed to be in a uniform state, adding an emulsifier and a defoaming agent during stirring, and standing for 20 minutes after stirring; then evaporating the water of the raw materials after standing in a heating mode to obtain a solid coating; finally, crushing the solid coating to obtain powder coating with the particle size of the powder particles being 8 meshes; at the same time, the powder with the grain diameter larger than 8 meshes generated in the grinding process can be processed again until the grain diameter is processed to 8 meshes.
Referring to fig. 3 and 5, one exemplary operation that may be achieved to agitate the ingredients is as shown:
the powder coating production process also uses a powder coating production device which comprises two mixing parts, wherein each mixing part comprises a central column 01, a plurality of side rods 02 are arranged on the central column 01 in a rotating way, the central column 01 can rotate around the axis of an inner plate 10, a cylinder 11 is sleeved around the inner plate 10, the inner wall of the cylinder 11 is contacted with the side surface of the inner plate 10, and the cylinder 11 and the inner plate 10 form a cylindrical container for stirring raw materials; when the device is used, only the raw materials are put into the cylindrical container, and then the power source is used for driving the central column 01 to rotate, so that the central column 01 can drive the side rods 02 to rotate in the cylindrical container to take out the raw materials, and the raw materials are stirred to be mixed to be in a uniform state.
Referring to fig. 3 and 5, one exemplary operation for hiding the plurality of side poles 02 is shown:
after the raw materials are stirred, in order to reduce the volume occupied by the side rods 02 in the cylindrical container, the central column 01 is provided with a plurality of hidden grooves 03 for buckling the side rods 02; after the stirring finishes, alright in order to a plurality of side levers 02 of the upturning, make a plurality of side levers 02 buckle respectively to a plurality of hidden grooves 03 in the middle of, make a plurality of side levers 02 hide within the horizontal cross section scope of center pillar 01 to reduce the shared volume of a plurality of side levers 02 in the tube-shape container, be convenient for get the material.
Referring to fig. 6-8, one exemplary process by which drying of the feedstock into a solid coating material can be achieved is as follows:
when the solid paint is manufactured, the central column 01 and the plurality of side rods 02 are prevented from being fixedly bonded in the solid paint, so the mixing part also comprises a cross beam 06 provided with a lug 05, a central shaft 04 rotating on the lug 05 and the cross beam 06, and a circular ring 09 rotating on the inner plate 10, wherein the lug 05 is embedded in a through hole arranged on the inner plate 10; the lug 05 can slide out of the through hole on the inner plate 10 downwards under the driving of the cross beam 06, and can drive the central shaft 04 to descend while the cross beam 06 descends, so that the central shaft 04 drives the central column 01 to slide downwards and pass through the through hole on the inner plate 10, when the side rods 02 touch the upper side surface of the inner plate 10, the central column 04 can rotate upwards and be hidden in the hidden grooves 03, the central column 01 descends until the upper end surface of the central column 01 is flush with the upper side surface of the inner plate 10, at the moment, the central column 01 and the side rods 02 retreat from the cylindrical container, and then the raw material in the cylindrical container can be dried, so that the raw material is solidified into solid paint, and the central column 01 and the side rods 02 are prevented from being solidified in the solid paint;
when the lug 05 is embedded in the through hole of the inner plate 10, the central shaft 04 can drive the central column 01 to rotate at a position above the upper side of the inner plate 10, so as to stir the raw materials.
Referring to fig. 3 and 4, one exemplary process that may be obtained to facilitate the removal of solid paint is as follows:
the mixing part also comprises a frame 07 fixed on the circular ring 09 and a cylinder 08 fixed on the frame 07 and used for driving the cross beam 06 to slide on the frame 07, and a spring 13 is connected between the cylinder 11 and the frame 07; when the solid paint is manufactured, the air cylinder 08 can be used for driving the cross beam 06 to descend so as to enable the middle column 01 and the side rods 02 to retreat from the cylindrical container;
when the solid paint in the cylindrical container is taken out conveniently, the cylinder 11 is pressed downwards to make the cylinder 11 slide and descend relative to the inner plate 10, so that the inner plate 10 can support the solid paint to be exposed out of the cylinder 11, and the solid paint is taken out conveniently;
meanwhile, after the solid paint is manufactured, the two mixing parts can be oppositely arranged, then the two mixing parts are mutually close to each other, the two cylinders 11 are mutually contacted and continuously pushed to mutually close, along with the contact of the cylinders 11, the two inner plates 10 can push the two solid paints in the two cylindrical containers to mutually close and contact, at the moment, the two middle shafts 04 can be driven to rotate by a power source, the two middle shafts 04 respectively drive the two middle columns 01 to rotate in opposite directions, and the middle columns 01 can be clamped in the through holes of the two inner plates 10 so as to realize the rotation of the two inner plates 10, so that the two inner plates 10 respectively drive the solid paint fixedly connected to the inner plates to rotate, and the two solid paints rub with each other to generate powder to manufacture the powder paint;
the two cylinders 11 are provided with notches 12, so that the powder generated by friction can fall to the outside from the two notches 12 for collection.
Referring to fig. 2 and 10, one exemplary process by which two solid paints can be brought close to each other is shown:
the device also comprises a base 14, two screw rods 15 which are rotated on the base 14, two sliding blocks 16 which are respectively connected with the two screw rods 15 in a threaded manner and can slide on the base 14, and two racks 07 are respectively rotated on the two sliding blocks 16; firstly, the two cylinders 11 are rotated from a vertical state to a horizontal state, when the two screw rods 15 are rotated, the two screw rods 15 can respectively drive the two sliders 16 to slide and approach on the base 14, so that the two cylinders 11 approach each other, and the two solid coatings approach each other and rub continuously to generate powder.
Referring to fig. 10 and 11, one exemplary operation that may be achieved to direct the powder coating material is shown:
the device also comprises a shifting sheet 17 fixed on the two screw rods 15; when two solid paint preparation powder, along with two solid paint of friction consumption can constantly cooperate the rotation, plectrum 17 also can rotate this moment, can stir the place ahead to the powder that falls from two notches 12 and lead to so that collect.
Referring to fig. 9 and 11, one exemplary operation that may be achieved for sieving the powder according to the present disclosure is:
the device also comprises a chute 18 horizontally sliding on the base 14, a tension spring 21 is connected between the chute 18 and the base 14, and a sieve plate 19 and a protrusion 20 which can be shifted by the shifting piece 17 are arranged on the chute 18; when the shifting piece 17 rotates, the protrusion 20 can be continuously shifted to enable the protrusion 20 to drive the inclined chute 18 to horizontally slide on the base 14, and the inclined chute 18 horizontally swings on the base 14 by utilizing the tension spring 21, so that powder sliding down the inclined chute 18 is screened by the screen plate 19, large particle powder and small particle powder are separated, and the particle size of the finally manufactured powder coating can be kept fine and uniform; and the large particle powder may be ground again to reduce the particle size of the powder particles.
Claims (10)
1. A powder coating production process is characterized by comprising the following steps:
the method comprises the following steps: proportioning the raw materials according to a proportion;
step two: mixing the raw materials to be uniform by stirring, adding an emulsifier and a defoaming agent, and standing for 15-35 minutes;
step three: evaporating water from the raw materials after standing to obtain a solid coating;
step four: crushing the solid coating to obtain a small-particle powder coating;
step five: the large-particle powder produced during the pulverization is processed again to obtain a small-particle powder coating.
2. The process for producing a powder coating according to claim 1, wherein: in the first step, the raw materials comprise epoxy resin, a curing agent, pigment, barium sulfate, low acid value polyester resin, calcium carbonate and titanium dioxide.
3. The process for producing a powder coating according to claim 2, wherein: the raw materials comprise the following components in parts by volume: 5 parts of epoxy resin; 1 part of a curing agent; 1 part of pigment; 2 parts of barium sulfate; 5 parts of low-acid-value polyester resin; 3 parts of calcium carbonate; and 3 parts of titanium dioxide.
4. The process for producing a powder coating according to claim 1, wherein: in the second step, the raw materials are stirred for 15-25 minutes under the condition of 800-1200 r/min.
5. The process for producing a powder coating according to claim 1, wherein: in the fourth step and the fifth step, the particle size of the powder particles in the powder coating is between 5 and 10 meshes.
6. The process for producing a powder coating according to claim 1, wherein: the curing agent in the raw materials is one or more of vinyl triamine, ethylenediamine and triethylene tetramine.
7. The process for producing a powder coating according to claim 1, wherein: the powder coating production process also uses a powder coating production device which comprises two mixing parts, wherein each mixing part comprises a center pillar (01) which is rotated by a plurality of side pillars (02), an inner plate (10) which is used for rotating the center pillar (01), and a cylinder (11) which is sleeved on the inner plate (10).
8. The process for producing a powder coating according to claim 7, wherein: the middle column (01) is provided with a plurality of hidden grooves (03) for buckling a plurality of side rods (02).
9. The process for producing a powder coating according to claim 8, wherein: the mixing part further comprises a cross beam (06) provided with a bump (05), a middle shaft (04) which rotates on the bump (05) and the cross beam (06), and a circular ring (09) which rotates on the inner plate (10), wherein the bump (05) is embedded in a through hole formed in the inner plate (10).
10. The process for producing a powder coating according to claim 9, wherein: the mixing part further comprises a frame (07) fixed on the circular ring (09) and an air cylinder (08) fixed on the frame (07) and used for driving the cross beam (06) to slide on the frame (07), and a spring (13) is connected between the cylinder (11) and the frame (07).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210047312.2A CN114292566B (en) | 2022-01-17 | 2022-01-17 | Powder coating production process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210047312.2A CN114292566B (en) | 2022-01-17 | 2022-01-17 | Powder coating production process |
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| CN114292566A true CN114292566A (en) | 2022-04-08 |
| CN114292566B CN114292566B (en) | 2023-04-18 |
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| CN202210047312.2A Active CN114292566B (en) | 2022-01-17 | 2022-01-17 | Powder coating production process |
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| CN212524282U (en) * | 2020-05-18 | 2021-02-12 | 安徽通意凌新材料科技有限公司 | Grinder is used in production of thermosetting powder coating |
| CN113845822A (en) * | 2021-09-30 | 2021-12-28 | 江阴市玲珑高分子材料有限公司 | Energy-saving curing super-weather-resistant powder coating and production process thereof |
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2022
- 2022-01-17 CN CN202210047312.2A patent/CN114292566B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102009030305A1 (en) * | 2008-07-16 | 2010-02-18 | Sartorius Stedim Biotech Gmbh | Stirring device with collapsible agitator blade |
| CN108610914A (en) * | 2016-12-30 | 2018-10-02 | 上海邦中高分子材料有限公司 | A kind of metal tube plastic-coated powdery paints and its preparation method and application |
| CN106854849A (en) * | 2017-03-01 | 2017-06-16 | 重庆而为路面材料有限公司 | Composable, moveable bitumen concrete production system |
| CN208320558U (en) * | 2018-05-09 | 2019-01-04 | 新昌县渲渲工业产品设计有限公司 | A kind of plant capsule injecting bucket of shrinkable stirring rod |
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| CN114292566B (en) | 2023-04-18 |
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Effective date of registration: 20230322 Address after: No. 599, Hougang Road, Xinbang Industrial Park, Songjiang District, Shanghai, 200000 Applicant after: Shanghai Xinchangjiang Chemical Co.,Ltd. Address before: 300171 8th floor, HuiSen garden, No. 88, Xinzhao Road, Changzhou Road Street, Hedong District, Tianjin Applicant before: Yin Haoran |
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