CN112221768A - Preparation method of color steel plate and color steel plate production equipment - Google Patents
Preparation method of color steel plate and color steel plate production equipment Download PDFInfo
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- CN112221768A CN112221768A CN202010845927.0A CN202010845927A CN112221768A CN 112221768 A CN112221768 A CN 112221768A CN 202010845927 A CN202010845927 A CN 202010845927A CN 112221768 A CN112221768 A CN 112221768A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/007—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/584—No clear coat specified at least some layers being let to dry, at least partially, before applying the next layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
- B05D7/586—No clear coat specified each layer being cured, at least partially, separately
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a preparation method and production equipment of a color steel plate, wherein the preparation method comprises the following steps: s1: obtaining a metal substrate, and carrying out surface treatment on the surface to be painted of the metal substrate; s2: arranging a paint layer on the metal substrate painting surface; s3: arranging UV metal coating liquid on the surface of the paint layer, wherein the UV metal coating liquid comprises acrylic resin and n-butyl acetate; s4: a pattern layer is manufactured on the UV metal coating liquid by adopting a digital jet printing mode to form a color steel plate, so that the adhesive force of the pattern layer and the anti-cracking and metal substrate separation performance of the whole coating can be effectively improved; various steel sheet production facility is used for the paint layer spraying process of various steel sheet, uses this various steel sheet production facility to carry out the steel sheet when spraying paint, and the steel sheet that will spray paint is on one side to be uniform linear motion, is on one side evenly sprayed paint, and the thickness of spraying paint is even, is favorable to going on smoothly of subsequent handling, can not appear influencing various steel sheet production quality's problem because of the paint finish is inhomogeneous on the steel sheet.
Description
Technical Field
The invention relates to the technical field of color steel plate processing, in particular to a color steel plate preparation method and color steel plate production equipment.
Background
The color steel plate is also called color coating steel plate, and the traditional production is to coat or press organic paint or color plastic film on the steel plate on a continuous production line. The steel plate may be made of galvanized sheet, cold-rolled sheet, stainless steel, or aluminum-plated sheet. The color steel plate not only has the mechanical strength of the common steel plate, but also can well improve the corrosion resistance. By using different colors of paint and different embossed plastic films, appearances such as wood grain, marble grain, metal texture, cloth grain, leather grain and the like can be made. In a cup bulge test of a color steel plate in the prior art, when a sample is slowly stretched to 3-4 mm, the surface of a film layer begins to fall off, and the interlayer begins to peel; in the T-bend test, after a steel plate sample is bent outwards by 180 degrees, a surface film layer at the bending part is cracked and peeled.
Painting color steel plates is an essential step in the production process of color steel plates, and the painting uniformity has great influence on the subsequent production process. The existing painting equipment for producing the color steel plate has the following two problems that firstly, clamping is inconvenient, and a clamping piece can cover part of a painting surface, so that the painting surface of the color steel plate can be sprayed with paint at partial positions, secondary painting repair is needed, and the process is complex. Moreover, the secondary repair painting is generally performed manually, which causes the problem that the thickness of the manually painted paint layer is not uniform with the thickness of the machine-painted paint layer. Secondly, the uniform motion can not be effectively guaranteed between the steel plate and the paint spraying head, so that the problem of uneven paint spraying is caused. The above problems may seriously affect the production quality of the color steel plate.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a preparation method of a color steel plate and color steel plate production equipment.
In order to solve the technical problems in the prior art, the invention adopts the following technical measures:
the invention provides a preparation method of a color steel plate, which comprises the following steps:
s1: obtaining a metal substrate, and carrying out surface treatment on the surface to be painted of the metal substrate;
s2: arranging a paint layer on the metal substrate painting surface;
s3: arranging UV metal coating liquid on the surface of the paint layer;
s4: and manufacturing a pattern layer on the UV metal coating liquid by adopting a digital jet printing mode to form the color steel plate.
As a further improvement, the UV metal coating liquid comprises acrylic resin and n-butyl acetate.
As a further improvement, the surface treatment of S1 includes degreasing cleaning, descaling cleaning and passivation of the metal substrate surface.
As a further improvement, before S2, a semi-cured UV optical adhesive (OCA) is coated on the color coating surface of the metal substrate, and the thickness of the semi-cured UV optical adhesive is 10-50 μm.
As a further improvement, after the step S2 of applying the paint layer, the semi-cured UV optical adhesive is UV light cured to be converted into a cured state.
As a further improvement, after the step of S2, the paint layer is further subjected to a drying treatment to accelerate curing of the paint layer.
As a further improvement, the paint layer in S2 is a double-layer paint including a top paint layer and a primer layer for improving adhesion of the top paint layer.
As a further refinement, the primer layer and the topcoat layer have a total thickness of 25 to 35 μm.
As a further improvement, the paint layer in S2 is a single-layer paint that increases the adhesion of the pattern layer and provides a base color to the pattern layer.
As a further improvement, the thickness of the single-layer lacquer is 20 to 30 μm.
As a further improvement, the thickness of the UV metal coating liquid is 8-15 μm.
As a further improvement, the pattern layer in S4 is formed by spraying a plurality of digital spray heads arranged in a row.
As a further improvement, UV light curing is adopted after the digital jet printing in S4 to accelerate the curing of the UV metal coating liquid.
As a further improvement, the S4 pattern layer is brushed with finishing paint.
The invention also provides color steel plate production equipment for preparing the color steel plate, which comprises a rack, a paint liquid box, a paint spraying pump, a paint spraying pipe, a spray head and a clamping and conveying device, wherein the inlet of the paint spraying pump is connected with the paint liquid box, one end of the paint spraying pipe is connected with the outlet of the paint spraying pump, the other end of the paint spraying pipe is arranged in a closed manner, the paint spraying pipe is horizontally arranged, and the lower end of the paint spraying pipe is provided with a plurality of spray heads; the clamping and conveying device is arranged on the rack and is positioned below the paint spraying pipe, the clamping and conveying device comprises a bottom plate, a speed reducer and a motor, the bottom plate is horizontally arranged, the width direction of the bottom plate is along the length direction of the paint spraying pipe, and a plurality of spray heads are arranged on a pipe body of the paint spraying pipe, which is positioned right above the bottom plate, and are uniformly arranged along the length direction of the paint spraying pipe; the two ends of the bottom plate in the width direction are respectively provided with a vertical plate, the vertical plates are perpendicular to the bottom plate, the length direction of each vertical plate is the same as that of the bottom plate, the outer side walls of the two vertical plates are respectively provided with a transverse electric cylinder, a piston rod of each transverse electric cylinder penetrates through each vertical plate and extends into the inner side of each vertical plate, the inner sides of the two vertical plates are respectively provided with a clamping plate, each clamping plate is arranged in parallel to the corresponding vertical plate, the length direction of each clamping plate is also the same as that of the bottom plate, the piston rod of each transverse electric cylinder is connected with the outer side face of each clamping plate, the upper end of the inner side face of each clamping plate is provided with a rectangular clamping opening, each rectangular clamping opening is arranged along the length direction of each clamping plate, and the two ends of the rectangular; the outer side walls of the two vertical plates are respectively provided with a limiting plate seat at the same height position along the length direction of the vertical plates, the lower end surface of each limiting plate seat is provided with a V-shaped sliding through groove, and the machine frame is provided with inverted V-shaped supporting blocks which are matched with each other and correspond to the V-shaped sliding through grooves of the two limiting plate seats; the speed reducer is installed on the rack, the speed reducer is located below the bottom plate, the motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with a rotating shaft, a gear is vertically installed on the rotating shaft, a rack is arranged on the lower end face of the bottom plate along the length direction of the bottom plate, and the rack is meshed with the gear.
As a further improvement, a plurality of guide through holes are formed in the vertical plate along the length direction of the vertical plate, guide rods are correspondingly arranged on the outer side wall of the clamping plate in a one-to-one correspondence mode corresponding to the positions of the guide through holes, the guide through holes and the guide rods are of cylindrical structures, and the diameters of the guide through holes and the guide rods are the same.
As a further improvement, the device also comprises two vertical electric cylinders, the upper ends of the two vertical electric cylinders are respectively connected with a pipe sleeve, the two pipe sleeves are respectively sleeved at the two ends of the paint spraying pipe, and the paint spraying pipe is connected with the outlet of the paint spraying pump through a hose.
Compared with the prior art, the invention has the beneficial effects that:
the UV metal coating liquid is further sprayed on the surface of the cured paint, and UV light is used for curing again after the pattern is manufactured, so that the adhesive force of the pattern layer is effectively increased, the pattern layer can still not fall off and peel off when the pattern layer is stretched to 6mm in a cup convex test, and the bending resistance can reach not more than 2T and the pattern layer can not fall off and peel off in a T-bend test.
The UV optical adhesive is coated on the metal substrate, the UV optical adhesive is adopted for complete curing after paint is sprayed, and the paint is heated and cured after the UV optical adhesive is completely cured, so that the adhesive force between the paint and the metal substrate is obviously improved. According to the invention, the UV optical adhesive is adopted for the inner layer to increase the adhesive force of the paint, and the UV metal coating liquid is adopted for the outer layer to increase the adhesive force of the pattern, so that the stability of the color steel plate is effectively increased on the whole.
The color steel plate is digitally sprayed and printed by the nozzles arranged in rows, so that the processing speed of the color steel plate is increased.
In addition, the color steel plate production equipment provided by the invention is used for the paint layer spraying process of the color steel plate, when the color steel plate production equipment is used for spraying paint on the steel plate, the steel plate to be sprayed is uniformly sprayed with paint while performing uniform linear motion, so that the paint surface on the steel plate is uniform, the paint spraying thickness is uniform, the subsequent processes can be smoothly carried out, and the problem that the production quality of the color steel plate is influenced by the non-uniform paint surface on the steel plate can be solved. The clamping width of the color steel plate production equipment is adjustable, so that the color steel plate production equipment is suitable for spraying paint on steel plates with different widths, the paint spraying thickness of the color steel plate production equipment is also adjustable, and the color steel plate production equipment is suitable for producing and using color steel plates with different paint layer thicknesses.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flow chart of a first embodiment;
FIG. 2 is a schematic structural view of a medium color steel plate according to an embodiment;
FIG. 3 is a schematic structural view of a second medium color steel plate according to an embodiment;
FIG. 4 is a schematic structural view of a color steel plate according to the third embodiment;
FIG. 5 is a flowchart of the fourth embodiment;
FIG. 6 is a schematic structural view of a fourth medium color steel plate according to an embodiment;
FIG. 7 is a front view of a color steel plate manufacturing apparatus;
FIG. 8 is a perspective view of a clamping and conveying device of a color steel plate production facility;
FIG. 9 is a top view of a clamping conveyor of a color steel plate manufacturing apparatus;
FIG. 10 is a schematic view showing the structure of the connection between the gear and the rack of the holding and conveying device of the color steel plate production equipment;
FIG. 11 is a perspective view of a clamping plate of a clamping conveyer of the color steel plate production facility;
fig. 12 is a perspective view of a position limiting plate seat of a clamping and conveying device of a color steel plate production device.
In the figure: 10. a metal substrate; 20. UV optical cement; 30. a paint layer; 31. a primer layer; 32. finishing paint; 40. a UV metal coating liquid; 50. a pattern layer; 60. finishing paint; 100. a paint liquid tank; 200. a paint spray pump; 300. a paint spray pipe; 400. a spray head; 500. a base plate; 600. a speed reducer; 700. a motor; 800. a vertical plate; 900. a transverse electric cylinder; 1000. a clamping plate; 1001. a rectangular clamping opening; 1100. a limiting plate seat; 1101. a V-shaped sliding through groove; 1200. a gear; 1300. a rack; 1400. a guide bar; 1500. a vertical electric cylinder; 1600. pipe sleeve; 1700. a hose; 1800. and (4) a valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 to 2, a method for manufacturing a color steel plate includes the following steps:
s1: obtaining a metal substrate 10, and carrying out surface treatment on the surface to be painted of the metal substrate 10; the surface treatment includes degreasing and descaling the surface of the metal substrate 10, and passivating the surface to be painted, so as to increase the roughness of the surface of the metal substrate 10 and improve the adhesion between the metal substrate 10 and the paint layer 30. The type of the metal substrate 10 is not particularly limited, and any base material generally used in the manufacturing process of color steel plates may be used. For example, the metal substrate 10 may be a hot-dip galvanized sheet, an electro-galvanized sheet, a stainless steel sheet, or the like.
The surface treatment in S1 includes cleaning the metal substrate 10 by brushing, sequentially cleaning the metal substrate 10 by alkali washing and alkaline lysis, and drying the color steel plate after cleaning; the degreasing and passivation mode can be a chromium-containing treatment mode or a chromium-free treatment mode, and the chromium-free treatment mode is preferably considered in the field of household appliances.
S2: a paint layer 30 is sprayed on the painted surface of the metal substrate 10, and the paint layer 30 is a double-layer paint which comprises a top paint layer 32 used as the bottom color of the pattern layer 50 and a primer layer 31 used for improving the adhesion of the top paint layer 32 and improving the surface flatness of the metal substrate 10. And spraying a primer layer 31 with the thickness of 15 microns and rolling a finish paint layer 32 with the thickness of 20 microns on the surface of the metal substrate 10 in sequence, and drying after brushing primer and finish paint, wherein the total thickness of the primer layer 31 and the finish paint layer 32 is 35 microns. In another embodiment, the primer layer 31 and the topcoat layer 32 may have a total thickness of less than 35 μm, but not less than 25 μm, for example, the primer layer 31 has a thickness of 15 μm and the topcoat layer 32 has a thickness of 15 μm, the total thickness of both being 30 μm.
In this embodiment, the drying temperature of the drying process in the primer layer 31 is 200 ℃, the drying time is 55 seconds, and the drying temperature of the drying process in the topcoat layer 32 is 220 ℃, and the drying time is 65 seconds.
In this embodiment, the primer layer 31 and the topcoat layer 32 are both colored paints.
S3: and arranging a UV metal coating liquid 40 on the surface of the paint layer 30, wherein the UV metal coating liquid 40 comprises acrylic resin and n-butyl acetate. The thickness of the UV metal coating liquid 40 is 15 μm, and the UV metal coating liquid can obtain high adhesive force and bonding force by using a very small amount, can greatly improve the interlayer adhesive force between paint finish and primer, and obviously improve the moisture resistance, salt spray resistance and heat resistance of a coating film.
S4: the pattern layer 50 is manufactured on the UV metal coating liquid 40 in a digital jet printing mode to form a color steel plate, the pattern layer 50 is UV paint printed on the surface of the UV metal coating liquid, an initiator is promoted to decompose under the irradiation of ultraviolet light to generate free radicals, resin reaction is initiated, and the UV paint is instantly cured to form a film and is the most environment-friendly paint at present. The pattern layer 50 is manufactured in a spraying chamber, a plurality of digital spray heads arranged in a row in the spraying chamber can spray and form different patterns on a steel plate moving in a unidirectional mode according to a controller, and the plurality of digital spray heads are independently controlled; a light curing chamber is arranged behind the spraying chamber, and a UV light curing lamp is arranged in the light curing chamber to cure the pattern layer 50.
By adopting the technical scheme, the pattern layer 50 is directly manufactured on the finish paint layer 32 in a digital spraying mode, compared with the traditional thermal transfer printing and silk-screen printing, the process of the technical scheme is relatively simple, and compared with the traditional roller coating printing, the digital spraying mode of the technical scheme can manufacture complex patterns, thereby enriching the appearance of the color steel plate.
Based on the technical scheme, the following technical effects can be achieved:
1. cup bulge test: 100 squares are scribed to a substrate layer of a sample on the front surface of a test (100mmX200mm) according to 1mmX1mm, the sample is placed in a cup convex testing machine, a plastic-coated film faces outwards, the test is slowly stretched to 6mm, and the test is taken out and checked to detect the convex part of the test, wherein the surface of the film layer does not fall off and the interlayer does not peel off.
T bending: according to the national standard GB/T232, the painted surface of a steel plate sample is bent outwards for 180 degrees, the surface film layer at the bent part is not cracked and peeled, and the steel plate sample is continuously bent twice on the basis of the bent part to reach 2T, and the surface film layer at the bent part is still not cracked and peeled.
MEK rub: wiping cloth soaked with liquid MEK solvent back and forth for 20 times in the unit area after cleaning, and the coating surface does not fall off.
4. Pencil hardness: 2H as determined by a pencil hardness meter.
5. Adhesive force cross sliding grid: according to the national standard GB/T9286-1998, there is little coating peeling at the incision intersections, but the cross-cut area is affected by no more than 5%.
Referring to fig. 7, 8, 9, 10, 11 and 12, a device for manufacturing color steel plates includes a frame, a paint liquid tank 100, a paint pump 200, a paint spraying pipe 300, a nozzle 400 and a clamping and conveying device, wherein the prepared paint is placed in the paint liquid tank 100, and in order to avoid paint deposition, a stirring device is disposed in the paint liquid tank 100 to continuously stir the paint in the paint liquid tank 100. An inlet of the painting pump 200 is connected to the paint liquid tank 100, one end of the painting pipe 300 is connected to an outlet of the painting pump 200, the other end is sealed, the painting pipe 300 is horizontally disposed, and a plurality of spray heads 400 are disposed at the lower end of the painting pipe 300; centre gripping conveyer sets up in the frame, and is located the below of spray paint pipe 300, and centre gripping conveyer includes bottom plate 500, speed reducer 600 and motor 700, and bottom plate 500 level sets up, and the width direction of bottom plate 500 is along the length direction of spray paint pipe 300, and a plurality of shower nozzles 400 set up on spray paint pipe 300 is located the body directly over bottom plate 500, and evenly sets up along the length direction of spray paint pipe 300.
The two ends of the bottom plate 500 in the width direction are respectively provided with a vertical plate 800, the vertical plates 800 are perpendicular to the bottom plate 500, the length direction of the vertical plates 800 is the same as that of the bottom plate 500, the outer side walls of the two vertical plates 800 are respectively provided with a transverse electric cylinder 900, a piston rod of the transverse electric cylinder 900 penetrates through the vertical plate 800 and extends into the inner side of the vertical plate 800, the inner sides of the two vertical plates 800 are respectively provided with a clamping plate 1000, the clamping plate 1000 is arranged in parallel to the vertical plates 800, the length direction of the clamping plate 1000 is also the same as that of the bottom plate 500, the piston rod of the transverse electric cylinder 900 is connected with the outer side face of the clamping plate 1000, the upper end of the inner side face of the clamping plate 1000 is provided with a rectangular clamping opening 1001, the rectangular clamping opening 1001 is arranged along the length direction of the clamping plate 1000; the outer side walls of the two vertical plates 800 are respectively provided with a limiting plate seat 1100 at the same height position along the length direction, the lower end face of each limiting plate seat 1100 is provided with a V-shaped sliding through groove 1101, inverted V-shaped supporting blocks which are matched with each other are arranged at the positions, corresponding to the V-shaped sliding through grooves 1101 of the two limiting plate seats 1100, on the rack, the clamping and conveying device is arranged on the rack through the limiting plate seats 1100, and the V-shaped supporting blocks of the rack are matched with the V-shaped sliding through grooves 1101 of the limiting plate seats 1100, so that the clamping and conveying device moves along the arrangement direction of the V-shaped supporting blocks on the rack without deflection.
The bottom plate 500, the vertical plate 800 and the clamping plate 1000 are all rectangular plate structures.
The working principle of the production equipment is as follows: according to the width of the steel plate to be painted, the distance between the two clamping plates 1000 is adjusted through the two transverse electric cylinders 900, so that two ends of the steel width are respectively arranged in the rectangular clamping openings 1001 formed in the two clamping plates 1000 and are clamped tightly under the action of the two transverse electric cylinders 900. The paint spraying pump 200 is started, the paint liquid in the paint liquid tank 100 is conveyed to the paint spraying pipe 300 by the paint spraying pump 200 and is sprayed out through the spray head 400, meanwhile, the motor 700 is started, the motor 700 is driven by the speed reducer 600 to drive the gear 1200 to rotate, and the gear 1200 drives the bottom plate 500 to do linear motion through the rack 1300, namely, the steel plate to be painted is driven to do linear uniform motion. The steel sheet that will spray paint is painted while moving, because the steel sheet is straight line uniform motion, and the even ejection of compact of lacquer by shower nozzle 400 spun moreover for the lacquer painting on the steel sheet is even, and the thickness of spraying paint is even. And the width of this equipment centre gripping is adjustable for this equipment is applicable to the steel sheet of different width and sprays paint the use, and the suitability is strong.
Referring to fig. 8 and 9, a plurality of guide through holes are formed in the vertical plate 800 along the length direction thereof, guide rods 1400 are correspondingly formed in positions corresponding to the guide through holes on the outer side wall of the clamping plate 1000 one by one, the guide through holes and the guide rods 1400 are both of a cylindrical structure and have the same diameter, and the arrangement of the guide through holes and the guide rods 1400 makes the clamping plate 1000 be more firmly arranged, so that the clamping plate 1000 is more firmly connected with the horizontal electric cylinder 900.
Referring to fig. 7, the production equipment further includes two vertical electric cylinders 1500, the upper ends of the two vertical electric cylinders 1500 are respectively connected to a pipe sleeve 1600, the two pipe sleeves 1600 are respectively sleeved at two ends of the paint spraying pipe 300, and the paint spraying pipe 300 is connected to the outlet of the paint spraying pump 200 through a hose 1700. Under the effect of vertical electronic jar 1500, pipe box 1600 and hose 1700, the height position of the pipe 300 that sprays paint can be adjusted through vertical electronic jar 1500, be the difference in height between the pipe 300 that sprays paint and the steel sheet of adjustable, so make this production facility can adjust the thickness of spraying paint.
Referring to fig. 7, the nozzle 400 is connected to the paint pipe 300 through a short pipe, and the short pipe is provided with a valve 1800, so that the nozzle 400 required for painting is different for different widths of steel plates, and the valve 1800 of the short pipe connected to the nozzle 400 not required for painting is closed, thereby saving paint.
In order to further adjust the paint thickness and the paint spraying speed, two frequency converters can be arranged and respectively electrically connected with the motor 700 and the paint spraying pump 200 for adjusting the rotating speed of the motor 700 and the paint spraying pump 200.
Example two:
as shown in fig. 3, the color steel plate of this embodiment has substantially the same structure as the first embodiment, except that the color steel plate of this embodiment is provided with a finishing paint 60 on the surface of the S4.
It is noted that the overprint varnish 60 is immiscible with the UV metal coating solution 40, and is a clear, non-yellowing, chemically resistant and UV resistant varnish.
Based on the technical scheme of using the finishing paint 60, compared with the first embodiment, the following steps are carried out:
t bending: the surface film layer at the bending part of the sample continuously bent for 3 times to reach 3T has no cracking or peeling.
MEK rub: wiping cloth soaked with liquid MEK solvent back and forth for 100 times in the unit area after cleaning, and the coating surface does not fall off.
Example three:
as shown in fig. 4, the color steel plate structure of this embodiment is substantially the same as that of the first embodiment, except that the paint layer 30 in S2 is a single layer paint for increasing the adhesion of the pattern layer 50 and providing a base color to the pattern layer 50, and the thickness of the single layer paint is 25 μm.
In this embodiment, the surface-treated metal substrate 10 is directly roll-coated with the colored paint layer 30 after being dried, and the paint layer 30 is dried after the roll coating is completed, or the paint layer 30 may be roll-coated after the UV optical glue is roll-coated or sprayed.
Example four:
as shown in fig. 5 and 6, the color steel plate structure of the present embodiment is substantially the same as the first embodiment, except that a step S101 is further performed before S2, where the step S101 is to coat a UV optical adhesive 20(OCA) with a thickness of 10-50 μm on the coated surface of the metal substrate 10, that is, a layer of UV optical adhesive 20 is formed between the metal substrate 10 and the paint layer 30. UV optical adhesive 20oca (optical Clear adhesive) is a special adhesive used to bond transparent optical elements such as lenses. The light transmission rate is more than 90%, the cementing strength is good, the curing can be carried out at room temperature or middle temperature, and the curing shrinkage is small. In short, OCA is a special double-sided adhesive tape without a substrate, which has an optically transparent layer. The thickness of the UV optical adhesive 20 is 10-50 μm, and in one embodiment, the thickness of the UV optical adhesive 20 is about 25 μm, and a certain error exists in the specific thickness. In another embodiment, the thickness of the UV optical adhesive 20 may be 10 μm, and in yet another embodiment, the thickness of the UV optical adhesive 20 may be 50 μm, but the thickness of the UV optical adhesive 20 cannot be too thick, which may affect the strength of the painted surface, and cannot be too thin, which may cause uneven painting and may also affect the quality of the product. In one embodiment, after the primer layer 31 is applied, in order to improve the adhesion between the primer layer 31 and the metal substrate, the UV optical adhesive 20 may be cured or semi-cured by UV light, and then the topcoat layer 32 is further coated by a roller, and then the primer layer and the topcoat layer are placed together in an oven for heat curing. In yet another embodiment, the topcoat layer 32 may be coated with a UV light curing, and then the topcoat layer may be placed in an oven for heat curing.
In the case that the paint layer 30 is a double-layer paint, it is preferable that the UV optical glue is cured by UV light after the primer is sprayed, so that the appearance of the product is more uniform, and the bonding strength between the primer and the metal substrate is improved.
In this embodiment, the color steel plate includes, in order from the inside to the outside, a metal substrate 10, a UV optical adhesive 20, a primer layer 31, a finish layer 32, a UV metal coating liquid 40, a pattern layer 50, and a finishing paint 60.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The preparation method of the color steel plate is characterized by comprising the following steps of:
s1: obtaining a metal substrate, and carrying out surface treatment on the surface to be painted of the metal substrate;
s2: arranging a paint layer on the metal substrate painting surface;
s3: arranging UV metal coating liquid on the surface of the paint layer;
s4: manufacturing a pattern layer on the UV metal coating liquid by adopting a digital jet printing mode to form a color steel plate;
preferably, the UV metal coating liquid includes acrylic resin and n-butyl acetate.
2. The method for preparing color steel plate according to claim 1, wherein the surface treatment of S1 comprises degreasing cleaning, descaling cleaning and passivation of metal substrate surface.
3. The method for preparing color steel plate according to claim 1, wherein UV optical adhesive (OCA) is coated on the color coated surface of the metal substrate before S2, and the thickness of the coating is 10-50 μm.
4. The method for preparing a color steel plate according to claim 3, wherein the semi-cured UV optical cement is UV-cured to be converted into a cured state after the paint layer is set in S2, and preferably, the paint layer is further dried after the paint layer is set in S2 to accelerate the curing of the paint layer.
5. The method for preparing a color steel plate according to claim 1 or 4, wherein the paint layer in S2 is a double-layer paint comprising a top paint layer and a primer layer for improving the adhesion of the top paint layer; preferably, the primer layer and the topcoat layer have a total thickness of 25 to 35 μm.
6. The method for preparing a color steel plate according to claim 1, wherein the paint layer in S2 is a single paint layer for increasing the adhesion of the pattern layer and providing a ground color for the pattern layer; preferably, the thickness of the single layer of lacquer is 20 to 30 μm, and/or the thickness of the UV metal coating liquid is 8 to 15 μm.
7. The method for preparing the color steel plate according to claim 1, wherein the pattern layer in S4 is prepared by spraying a plurality of digital spray heads arranged in rows, and the digital spray heads are independently controlled; preferably, UV light curing is adopted after the digital jet printing in S4 to accelerate the curing of the UV metal coating liquid; preferably, the S4 pattern layer is brushed with finishing paint.
8. A production apparatus for a color plate according to any one of claims 1 to 7, characterized in that: the paint spraying device comprises a rack, a paint liquid box (100), a paint spraying pump (200), a paint spraying pipe (300), a spray head (400) and a clamping and conveying device, wherein an inlet of the paint spraying pump (200) is connected with the paint liquid box (100), one end of the paint spraying pipe (300) is connected with an outlet of the paint spraying pump (200), the other end of the paint spraying pipe is sealed, the paint spraying pipe (300) is horizontally arranged, and a plurality of spray heads (400) are arranged at the lower end of the paint spraying pipe (300); the clamping and conveying device is arranged on the rack and located below the paint spraying pipe (300), the clamping and conveying device comprises a bottom plate (500), a speed reducer (600) and a motor (700), the bottom plate (500) is horizontally arranged, the width direction of the bottom plate (500) is along the length direction of the paint spraying pipe (300), and a plurality of spray heads (400) are arranged on a pipe body of the paint spraying pipe (300) located right above the bottom plate (500) and evenly arranged along the length direction of the paint spraying pipe (300); the two ends of the bottom plate (500) in the width direction are respectively provided with a vertical plate (800), the vertical plates (800) are perpendicular to the bottom plate (500), the length direction of each vertical plate (800) is the same as that of the bottom plate (500), the outer side walls of the two vertical plates (800) are respectively provided with a transverse electric cylinder (900), a piston rod of each transverse electric cylinder (900) penetrates through the vertical plate (800) to extend into the inner side of each vertical plate (800), the inner sides of the two vertical plates (800) are respectively provided with a clamping plate (1000), each clamping plate (1000) is arranged in parallel to the corresponding vertical plate (800), the length direction of each clamping plate (1000) is also the same as that of the bottom plate (500), the piston rod of each transverse electric cylinder (900) is connected with the outer side face of each clamping plate (1000), and the upper end of the inner side face of each clamping plate (1000) is provided with a rectangular clamping opening, the rectangular clamping opening (1001) is arranged along the length direction of the clamping plate (1000), and two ends of the rectangular clamping opening (1001) in the length direction are respectively aligned with two ends of the clamping plate (1000) in the length direction; the outer side walls of the two vertical plates (800) are respectively provided with a limiting plate seat (1100) at the same height position along the length direction of the outer side walls, the lower end surface of each limiting plate seat (1100) is provided with a V-shaped sliding through groove (1101), and the machine frame is provided with inverted V-shaped supporting blocks corresponding to the V-shaped sliding through grooves (1101) of the two limiting plate seats (1100); the speed reducer (600) is installed on the rack, the speed reducer (600) is located below the bottom plate (500), the motor (700) is connected with the input end of the speed reducer (600), the output end of the speed reducer (600) is connected with a rotating shaft, a gear (1200) is vertically installed on the rotating shaft, a rack (1300) is arranged on the lower end face of the bottom plate (500) along the length direction of the lower end face, and the rack (1300) is meshed with the gear (1200).
9. The color steel plate production facility according to claim 8, wherein: the vertical plate (800) is provided with a plurality of guide through holes along the length direction, the outer side wall of the clamping plate (1000) is provided with guide rods (1400) corresponding to the guide through holes in a one-to-one correspondence mode, the guide through holes and the guide rods (1400) are of cylindrical structures, and the diameters of the guide through holes and the guide rods are the same.
10. The color steel plate production facility according to claim 9, characterized in that: still include two vertical electronic jars (1500), two the upper end of vertical electronic jar (1500) be connected with one pipe box (1600) respectively, two pipe box (1600) overlap respectively and locate the both ends of spray paint pipe (300), spray paint pipe (300) are passed through hose (1700) and are linked to each other with the export of pump (200) that sprays paint.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113492082A (en) * | 2021-06-30 | 2021-10-12 | 镭德杰标识科技武汉有限公司 | Spraying device, coding system and coating spraying method |
| CN113858843A (en) * | 2021-09-26 | 2021-12-31 | 深圳市鑫明光建筑科技有限公司 | Metal digital printing method and metal printing plate |
| CN115487982A (en) * | 2022-10-20 | 2022-12-20 | 陕西宝成航空仪表有限责任公司 | Method for manufacturing hydrophobic film-plated optical glass upper paint layer |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1759150A (en) * | 2003-01-11 | 2006-04-12 | 坎梅陶尔股份有限公司 | Method for coating metallic surfaces, coating composition, and coatings produced in said manner |
| CN201044926Y (en) * | 2007-04-03 | 2008-04-09 | 北京埃德尔博珂工程技术有限公司 | On-line lubricating-width adjusting and nozzle washing device of rolling machine |
| CN101722138A (en) * | 2008-10-17 | 2010-06-09 | 比亚迪股份有限公司 | Preparation method of mirror surface stainless steel |
| CN201679177U (en) * | 2010-01-21 | 2010-12-22 | 珠海东诚光固化材料有限公司 | UV cured transfer film metal decorative board |
| EP2361958A1 (en) * | 2010-02-26 | 2011-08-31 | Kraft Foods Global Brands LLC | A low-tack, uv-cured pressure sensitive adhesive suitable for reclosable packages |
| CN205413496U (en) * | 2016-04-01 | 2016-08-03 | 于凯 | Oil painting basement coating machine |
| CN106827845A (en) * | 2017-02-17 | 2017-06-13 | 然斯康波达机电设备(深圳)有限公司 | A kind of printing process of 3D bend glasses pattern and device |
| CN107309112A (en) * | 2017-07-20 | 2017-11-03 | 袁志航 | A kind of construction site plank paint spraying apparatus |
| CN109225726A (en) * | 2018-11-27 | 2019-01-18 | 十堰市隆泰源工贸有限公司 | A kind of painting device of car pedal good clamping effect |
| CN109532261A (en) * | 2018-12-28 | 2019-03-29 | 青岛河钢复合新材料科技有限公司 | A kind of preparation method of color steel sheet |
-
2020
- 2020-08-20 CN CN202021753184.6U patent/CN213996607U/en active Active
- 2020-08-20 CN CN202010845927.0A patent/CN112221768B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1759150A (en) * | 2003-01-11 | 2006-04-12 | 坎梅陶尔股份有限公司 | Method for coating metallic surfaces, coating composition, and coatings produced in said manner |
| CN201044926Y (en) * | 2007-04-03 | 2008-04-09 | 北京埃德尔博珂工程技术有限公司 | On-line lubricating-width adjusting and nozzle washing device of rolling machine |
| CN101722138A (en) * | 2008-10-17 | 2010-06-09 | 比亚迪股份有限公司 | Preparation method of mirror surface stainless steel |
| CN201679177U (en) * | 2010-01-21 | 2010-12-22 | 珠海东诚光固化材料有限公司 | UV cured transfer film metal decorative board |
| EP2361958A1 (en) * | 2010-02-26 | 2011-08-31 | Kraft Foods Global Brands LLC | A low-tack, uv-cured pressure sensitive adhesive suitable for reclosable packages |
| CN205413496U (en) * | 2016-04-01 | 2016-08-03 | 于凯 | Oil painting basement coating machine |
| CN106827845A (en) * | 2017-02-17 | 2017-06-13 | 然斯康波达机电设备(深圳)有限公司 | A kind of printing process of 3D bend glasses pattern and device |
| CN107309112A (en) * | 2017-07-20 | 2017-11-03 | 袁志航 | A kind of construction site plank paint spraying apparatus |
| CN109225726A (en) * | 2018-11-27 | 2019-01-18 | 十堰市隆泰源工贸有限公司 | A kind of painting device of car pedal good clamping effect |
| CN109532261A (en) * | 2018-12-28 | 2019-03-29 | 青岛河钢复合新材料科技有限公司 | A kind of preparation method of color steel sheet |
Non-Patent Citations (1)
| Title |
|---|
| 凯特.威尔森: "《现代绘画材料技法全书》", 31 May 2016 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113492082A (en) * | 2021-06-30 | 2021-10-12 | 镭德杰标识科技武汉有限公司 | Spraying device, coding system and coating spraying method |
| CN113858843A (en) * | 2021-09-26 | 2021-12-31 | 深圳市鑫明光建筑科技有限公司 | Metal digital printing method and metal printing plate |
| CN115487982A (en) * | 2022-10-20 | 2022-12-20 | 陕西宝成航空仪表有限责任公司 | Method for manufacturing hydrophobic film-plated optical glass upper paint layer |
| CN115487982B (en) * | 2022-10-20 | 2023-12-22 | 陕西宝成航空仪表有限责任公司 | Manufacturing method of hydrophobic film plating optical glass paint layer |
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| Publication number | Publication date |
|---|---|
| CN213996607U (en) | 2021-08-20 |
| CN112221768B (en) | 2022-02-22 |
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