CN109532261A - A kind of preparation method of color steel sheet - Google Patents
A kind of preparation method of color steel sheet Download PDFInfo
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- CN109532261A CN109532261A CN201811628718.XA CN201811628718A CN109532261A CN 109532261 A CN109532261 A CN 109532261A CN 201811628718 A CN201811628718 A CN 201811628718A CN 109532261 A CN109532261 A CN 109532261A
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- steel sheet
- color steel
- top coat
- preparation
- metal substrate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/413—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material for metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/0041—Digital printing on surfaces other than ordinary paper
- B41M5/0058—Digital printing on surfaces other than ordinary paper on metals and oxidised metal surfaces
Abstract
The present invention relates to color steel sheet processing technique fields, more specifically, it relates to a kind of preparation method of color steel sheet, its key points of the technical solution are that: a kind of preparation method of color steel sheet, it is the following steps are included: step S1: metal substrate is obtained, to the side surface passivating treatment of metal substrate；Step S2: prime coat is set on the passivated surface of metal substrate；Step S3: top coat layer is set on prime coat, is mixed with adhesion promoter in top coat layer；Step S4: using number spraying by the way of on top coat layer pattern-making layer, to form color steel sheet.In the technical solution provided according to the present invention, by then passing through the digital mode sprayed pattern-making layer directly on top coat layer, relative to traditional thermal transfer and silk-screen printing, the process of technical solution of the present invention is relatively simple, in addition, it is printed relative to traditional roller coating, the digital spraying method of technical solution of the present invention can make more complex pattern, enrich the appearance of color steel sheet.
Description
Technical field
The present invention relates to color steel sheet processing technique field, in particular to a kind of preparation method of color steel sheet.
Background technique
Color steel sheet is also known as color painted steel strip, and traditional mode of production is in the continuous production line by organic coating or color plastic
Material film is coated or is pressed on the steel plate.The material of steel plate can be galvanized sheet, cold-reduced sheet, stainless steel or alclad sheet
Deng.
Color steel sheet had not only possessed the mechanical strength of general steel plate, but also can improve corrosion resistance well.By using not
With coating and the plastic film of different embossings of color, such as wood grain, marble grain, metal-like, woven design, dermatoglyph can be made
Etc. appearances.
Color steel sheet can also pass through the productions such as screen printing, thermal transfer or UV transfer.
Wherein, traditional roller coating production color is single, can not produce more complex pattern, and coating environmental pollution is tighter
Weight is suitble to produce the single product of pattern in enormous quantities.
Traditional thermal transfer needs that pattern is printed upon on heat-transferring printing paper first, then passes through on hot-pressing transfer printing to steel plate, raw
Low efficiency, and transfer paper higher cost are produced, is unfavorable for producing in enormous quantities.
Conventional screen print needs to scribe halftone in advance, and production efficiency is low, the period is long, and ink heat is dried, and volatilization is harmful
Gas pollutes environment.
Summary of the invention
In view of this, the present invention provides a kind of preparation method of color steel sheet, main purpose is to improve on color steel sheet
The producing efficiency of pattern layer enriches the appearance of color steel sheet.
In order to achieve the above objectives, present invention generally provides following technical solutions:
The embodiment of the present invention provides a kind of preparation method of color steel sheet, comprising the following steps:
Step S1: metal substrate is obtained, to the side surface passivating treatment of metal substrate；
Step S2: prime coat is set on the passivated surface of metal substrate；
Step S3: top coat layer is set on prime coat, is mixed with adhesion promoter in top coat layer；
Step S4: using number spraying by the way of on top coat layer pattern-making layer, to form color steel sheet.
By using above-mentioned technical proposal, by the mode pattern-making directly on top coat layer for then passing through digital spraying
Layer, relative to traditional thermal transfer and silk-screen printing, the process of technical solution of the present invention is relatively simple, in addition, relative to biography
The roller coating of system prints, and the digital spraying method of technical solution of the present invention can make more complex pattern, enrich color steel sheet
Appearance.
The present invention is further arranged to: in step s 4 using digital spraying equipment pattern-making layer on top coat layer；Institute
Stating digital spraying equipment includes controller and multiple spray heads；
The controller is used to send signal to each spray head according to instruction；
Each spray head sprays ink to the top coat layer for signal based on the received.
By using above-mentioned technical proposal, due to being that controller controls each spray head directly to top coat layer sprinkling ink, work
Sequence is relatively simple, implements relatively more convenient.
The present invention is further arranged to: the number spraying equipment further includes UV curing light source；
The UV curing light source solidifies for being sprayed onto the ink on top coat layer to spray head.
By using above-mentioned technical proposal, UV curing light source issues ultraviolet light, by ultraviolet light to the ink on top coat layer
Solidified, to prevent ink from falling off.
The present invention is further arranged to: the number spraying equipment is to the metal substrate printed patterns with top coat layer
When,
Distance of the spray head away from top coat layer is greater than or equal to 0.1 times of the thickness of the metal substrate with top coat layer.
By using above-mentioned technical proposal, it can not only guarantee the coating quality of spray head, but also can prevent spray head from bumping against finishing coat
It causes to damage on layer.
The present invention is further arranged to: it is described number spraying equipment further include rack, the rack be equipped with print platform,
Elevator head and driving mechanism；
The print platform is for carrying workpiece to be printed；
The spray head is arranged on the elevator head；
The driving mechanism for driving the elevator head to go up and down, with adjust between the spray head and the print platform away from
From.
By using above-mentioned technical proposal, since the distance between spray head and print platform are adjustable, so as to suitable
The metal substrate of different height is answered, practicability is stronger；And it is also possible to prevent the top coat layer that spray head bumps against metal substrate.
The present invention is further arranged to: the driving mechanism includes motor, screw rod, nut seat and position-limit mechanism；
The screw rod is rotatably arranged in rack, and the motor is for driving screw rod to rotate；
The nut seat is set on screw rod, and the position-limit mechanism is used to limit nut seat, moves nut seat along screw rod；
The elevator head is arranged on nut seat, for going up and down with nut seat.
By using above-mentioned technical proposal, the function of driving mechanism driving elevator head lifting may be implemented.
The present invention is further arranged to: being had on the print platform and is vacuumized hole.
By using above-mentioned technical proposal, print platform can vacuumize hole adsorbing metal substrate by this, to play pair
The fixed effect of metal substrate.
The present invention is further arranged to: the number spraying equipment is on to print platform with the metal substrate of top coat layer
When printed patterns, one layer of air-permeable paper is spread between metal substrate and print platform.
By using above-mentioned technical proposal, air-permeable paper, which neither influences to vacuumize hole, fixes the absorption of metal substrate, and can
To play the role of insulation blocking, prevent metal substrate from striking print platform and print platform is caused to damage.
The present invention is further arranged to: the thickness of the pattern layer is no more than 28 microns.
By using above-mentioned technical proposal, pattern layer is made to be unlikely to blocked up and cracking during bending occurs.
The present invention is further arranged to: in step sl by the way of degreasing to the side surface passivation of metal substrate
Reason.
By using above-mentioned technical proposal, degreasing passivation is chemical passivation method, implements relatively more convenient.
By above-mentioned technical proposal, the preparation method of color steel sheet of the present invention is at least had the advantages that
In the technical solution provided by the present invention, by then passing through the digital mode pattern-making directly on top coat layer sprayed
Layer, relative to traditional thermal transfer and silk-screen printing, the process of technical solution of the present invention is relatively simple, in addition, relative to biography
The roller coating of system prints, and the digital spraying method of technical solution of the present invention can make more complex pattern, enrich color steel sheet
Appearance.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the preparation method for color steel sheet that one embodiment of the invention provides；
Fig. 2 is a kind of structural schematic diagram for color steel sheet that one embodiment of the invention provides；
Fig. 3 is a kind of structural schematic diagram for digital spraying equipment that one embodiment of the invention provides.
Appended drawing reference: 1, rack；2, print platform；3, elevator head；4, UV curing light source；10, metal substrate；20, bottom
Paint layer；30, top coat layer；40, pattern layer；21, hole is vacuumized；100, digital spraying equipment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
As depicted in figs. 1 and 2, a kind of preparation method for color steel sheet that one embodiment of the present of invention proposes comprising
Following steps:
Step S1: metal substrate 10 is obtained, to the side surface passivating treatment of metal substrate 10.Metal substrate can so be increased
The roughness on 10 surfaces improves the adhesive force between metal substrate 10 and adjacent layer.Wherein, the type of metal substrate 10 is without spy
Different limitation, usually any substrate used in color steel sheet manufacturing process can use.For example, the metal substrate 10 can be with
For heat zinc coating plate, electrolytic galvanized sheet, stainless steel plate etc..
Preferably, above-mentioned can be by the way of degreasing to the side surface passivating treatment of metal substrate 10.Degreasing passivation
For chemical passivation method, implement relatively more convenient.Wherein, the mode of degreasing passivation can be processing mode containing chromium or Chrome-free
Processing mode pays the utmost attention to chromium-free treatment mode in field of household appliances.
Step S2: prime coat 20 is set on the passivated surface of metal substrate 10.The prime coat 20 can be cold coating
The corrosion resistance of metal substrate 10 can be improved in layer, prime coat 20, guarantees the surface smoothness of metal substrate 10.
Step S3: top coat layer 30 is set on prime coat 20, is mixed with adhesion promoter in top coat layer 30.Top coat layer 30
It can be resin coating layer, top coat layer 30 can according to need with different colors, to guarantee the appearance of color steel sheet.Separately
Outside, due to being mixed with adhesion promoter in top coat layer 30, the adhesive force of top coat layer 30 Yu ink can be improved, prevent pattern
The ink of layer 40 falls off.
Step S4: using number spraying by the way of on top coat layer 30 pattern-making layer 40, to form color steel sheet.
In the technical solution of above-mentioned offer, by then passing through the digital mode sprayed production figure directly on top coat layer 30
Pattern layer 40, relative to traditional thermal transfer and silk-screen printing, the process of technical solution of the present invention is relatively simple, in addition, relatively
It is printed in traditional roller coating, the digital spraying method of technical solution of the present invention can make more complex pattern, enrich colour
The appearance of steel plate.
It wherein, in step s 4 can be using the digital pattern-making layer 40 on top coat layer 30 of spraying equipment 100.Number spray
Automatic doubler surface glouer 100 and traditional digital printer have apparent difference.Conventional digital printing machine is that digital signal is reached laser
Controller, laser controller issue laser beam, scan to printing cylinder.The printing cylinder made of photosensitive material (no printing plate) warp
The picture and text that can adsorb ink or ink powder are formed after photosensitive, are then transferred on the stocks such as paper.Wherein, conventional digital prints
The transfer of machine is acted on using electrostatic induction, transfer electrode make stock have with the opposite polarity charge of ink, stock is logical
Transfer roll is crossed, ink can be transferred on stock, but steel plate is conductive, can not be transferred in this way.
Above-mentioned digital spraying equipment 100 may include controller and multiple spray heads.Controller is used for according to instruction to each
Spray head sends signal.Each spray head sprays ink to top coat layer 30 for signal based on the received.It specifically, can be on each spray head
Solenoid valve is all had, controller passes through control solenoid valve open or close spray head.
By above-mentioned setting, due to being that controller controls each spray head directly to the sprinkling ink of top coat layer 30, process phase
To relatively simply, implement relatively more convenient.
Above-mentioned controller can be microprocessor etc..At one specifically using in example, the quantity of above-mentioned spray head can
With up to hundreds of, it is made of so that spraying out the pattern come numerous ink dot.
As shown in figure 3, number spraying equipment 100 above-mentioned can also include UV curing light source 4.UV curing light source 4 is used for
The ink being sprayed on top coat layer 30 to spray head solidifies.UV is the meaning of ultraviolet light, and UV curing light source 4 is that ultraviolet light is solid
Change light source.UV curing light source 4 issues ultraviolet light, is solidified by ultraviolet light to the ink on top coat layer 30, to prevent ink
It falls off.
For above-mentioned digital spraying equipment 100 when to metal substrate printed patterns with top coat layer 30, spray head is away from finishing coat
The distance of layer 30 is greater than or equal to 0.1 times of the thickness of the metal substrate with top coat layer 30.In this way, can both guarantee spray head
Coating quality, and can prevent spray head from bumping against on top coat layer 30 and cause to damage.
As shown in figure 3, number spraying equipment 100 above-mentioned further includes rack 1.Rack 1 is equipped with print platform 2, lifting
Head 3 and driving mechanism.Print platform 2 is for carrying workpiece to be printed.Spray head is arranged on elevator head 3.Driving mechanism is used
It is gone up and down in driving elevator head 3, to adjust the distance between spray head and print platform 2.
In the examples described above, since the distance between spray head and print platform 2 are adjustable, so as to adapt to different height
The metal substrate 10 of degree, practicability is stronger；And it is also possible to prevent the top coat layer 30 that spray head bumps against metal substrate 10.
In order to realize the function of the aforementioned lifting of elevator head 3, in a specific application example, driving mechanism above-mentioned
It may include motor, screw rod, nut seat and position-limit mechanism.Screw rod is rotatably arranged in rack 1, and motor is for driving silk
Bar rotation.Nut seat is set on screw rod, and position-limit mechanism is used to limit nut seat, moves nut seat along screw rod.Elevator
First 3 are arranged on nut seat, for going up and down with nut seat.Wherein, position-limit mechanism can be with linear guide, nut seat and linear guide
Sliding block connection.
Hole 21 is vacuumized as shown in figure 3, can have on print platform 2 above-mentioned, print platform 2 can be true by the pumping
21 adsorbing metal substrate 10 of emptying aperture, to play the effect fixed to metal substrate 10.
Wherein, there are on to print platform 2 the metal substrate printed patterns of top coat layer 30 when digital spraying equipment 100
When, one layer of air-permeable paper is also covered between metal substrate 10 and print platform 2.The air-permeable paper neither influences to vacuumize 21 pairs of hole gold
The absorption for belonging to substrate 10 is fixed, and can play the role of insulation blocking, prevents metal substrate 10 from striking print platform 2 and making
It is damaged at print platform 2.
Further, suction nozzle and vacuum pump are additionally provided in rack above-mentioned.Suction nozzle is connected to spray head.Vacuum pump is for passing through
Suction nozzle vacuumizes spray head inside.Specifically, when blocking inside spray head, vacuum pump can be opened, vacuum pump is in spray head
Portion vacuumizes, and the ink blocked in spray head is sucked out, cleaning and dredging spray head is played the role of.
Above-mentioned vacuum pump is also used to vacuumize the hole 21 above-mentioned that vacuumizes.
Further, the thickness of earlier figures pattern layer 40 is no more than 28 microns, and pattern layer 40 is made to be unlikely to blocked up and roll over
Curved cracking.
It is above-mentioned to use the digital pattern-making layer 40 on top coat layer 30 of spraying equipment 100, it specifically includes with the next stage: the stage
1: obtaining pattern；Stage 2: by layout computer by the printing precision of pattern, size, gloss oil color ink mixing ratio etc. into
Row setting；Stage 3: it sends the above-mentioned pattern set to production operation computer, and carries out print position, UV lamp energy etc. and set
It sets；Stage 4: printing.
Wherein, printing precision, gloss oil color ink mixed proportion, the setting of UV lamp energy be should be noted in the stage 1.In the stage 2
Need to adjust gloss oil and color ink mixed proportion, while guaranteeing properties of product, dosage is minimum, to save cost.In stage S3
UV solidification energy is needed according to using the time to be adjusted, and while guaranteeing properties of product, energy is minimum, is made with improving UV lamp
With the service life, cost is saved.In printing stage S4, should be noted can not allow steel plate alice, guarantee the integral smoothness of platform.
The working principle of the invention and preferred embodiment is described below.
The preferred embodiment of the present invention 1: after preparing metal substrate 10, degreasing passivation is carried out to a side surface of metal substrate 10
Form chemical treatment layer；One layer of priming paint is applied on chemical treatment layer, forms prime coat 20；A level is applied on above-mentioned prime coat 20
Paint forms top coat layer 30；Pattern layer 40 is sprayed by way of number spraying in top coat layer 30.It includes following for spraying pattern layer 40
Stage: the stage 1: digital printing pattern layer is generated；Stage 2: by layout computer that the printing precision of pattern, size is big
Small, gloss oil color ink mixing ratio etc. is configured；Stage 3: production operation computer is sent by the above-mentioned pattern set and is beaten
Print position, the setting of UV lamp energy；Stage 4: finishing coat plate is placed in print platform 2 and is printed.
It, can be by above-mentioned reality in order to verify the quality for the color steel sheet that the method for using technical solution of the present invention is processed
It applies color steel sheet obtained in example 1 and uses the obtained color steel sheet of art methods to be compared with following each comparative example
Compared with.Wherein, comparative example 1 is the pattern layer 40 that color steel sheet is processed by the way of screen printing in the prior art；Comparative example 2 is to adopt
The pattern layer 40 of color steel sheet is processed with the mode of roller coating in the prior art；Comparative example 3 is using thermal transfer in the prior art
Mode processes the pattern layer 40 of color steel sheet.Comparative example 1 to comparative example 3 is described respectively below:
Comparative example 1: Chrome-free chemical treatment layer, prime coat 20, top coat layer 30 and screen printing are set gradually on metal substrate 10
Pattern layer 40 obtains screen printing color steel sheet.
Comparative example 2: Chrome-free chemical treatment layer, prime coat 20, top coat layer 30, Yi Jicai are set gradually on metal substrate 10
Pattern layer 40 is applied, color coating color steel sheet is obtained.
Comparative example 3: Chrome-free chemical treatment layer, prime coat 20, top coat layer 30, Yi Jire are set gradually on metal substrate 10
Transfer pattern layer 40 obtains thermal transfer color steel sheet.
Laminating steel plate adhesive force, salt spray resistance, processing performance, production cycle are carried out to above-described embodiment 1 and comparative example 1~3
And production cost evaluation.
Wherein, after adhesive force evaluation is according to hundred lattice of 1mm are drawn, Erichsen test.When 8mm is without any removing, adhesive force is outstanding；
When 6mm is without any removing, adhesive force is good；It is unqualified that 6mm, which has removing,.
Salt spray resistance test: drawing "×" with knife among steel plate, and each length is not less than 50 millimeters, crosses necessary
Antireflective coating layer (until metal substrate 10, primary to complete) is drawn, it then will be sealed around.With 5% salt water under the conditions of 35 DEG C ± 2 DEG C into
Row 240 hours, it is no more than 1mm in sample notch or so rust creepage.
Processability evaluation bends into row according to T.It is outstanding when 0T is flawless；It is good when 2T is flawless；It is not that 2T, which has slight crack,
It is qualified.
Appearance evaluation: under the conditions of 45° angle natural light visually, clear patterns are evident as qualification, otherwise unqualified.
Production cycle evaluation: the time used firstling from starting to producing.
The color steel sheet in embodiment 1 and comparative example 1~3 is tested using above-mentioned test method, is tested
As a result as shown in the table.
| Serial number | Adhesive force | Salt spray resistance | Processability | Appearance | Production cycle | Production cost |
| Embodiment 1 | 10mm | 240h is qualified | 2T | Preferably | 1 day | It is lower |
| Comparative example 1 | 8mm | 240h is qualified | 2T | Preferably | 5 days | It is higher |
| Comparative example 2 | 8mm | 240h is qualified | 2T | It is single | 5 days | It is lower |
| Comparative example 3 | 6mm | 240h is qualified | 3T | Preferably | 1 day | It is higher |
It is recognized that according to the experimental result of upper table: (1) when embodiment 1 is compared with comparative example 1, in adhesive force and processing
While performance is not less than silk-screen printing, the production cycle is significantly improved, and production cost reduces.
(2) when embodiment 1 is compared with comparative example 2, while adhesive force and processing performance are better than color coating color steel sheet,
Appearance is abundant, and clarity is higher.
(3) when embodiment 1 is compared with comparative example 3, production cost is substantially reduced, and performance is better than thermal transfer colour steel
Plate.
According to the above embodiments, the preparation method of color steel sheet of the invention at least has the advantage that
Advantage 1: abundant product appearance.
Advantage 2: shorten the production cycle, improve production efficiency.
What needs to be explained here is that: in the absence of conflict, those skilled in the art can according to the actual situation by
Relevant technical characteristic is combined with each other in above-mentioned each example, to reach corresponding technical effect, particularly for various combined situations
It will not repeat them here.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of preparation method of color steel sheet, which comprises the following steps:
Step S1: it obtains metal substrate (10), to the side surface passivating treatment of metal substrate (10)；
Step S2: prime coat (20) are set on the passivated surface of metal substrate (10)；
Step S3: being arranged top coat layer (30) on prime coat (20), is mixed with adhesion promoter in top coat layer (30)；
Step S4: using number spraying by the way of on top coat layer (30) pattern-making layer (40), to form color steel sheet.
2. the preparation method of color steel sheet according to claim 1, which is characterized in that in step s 4 using digital spraying
Equipment (100) pattern-making layer (40) on top coat layer (30)；The number spraying equipment (100) includes controller and multiple sprays
Head；
The controller is used to send signal to each spray head according to instruction；
Each spray head sprays ink to the top coat layer (30) for signal based on the received.
3. the preparation method of color steel sheet according to claim 2, which is characterized in that the number spraying equipment (100)
It further include UV curing light source (4)；
The ink that the UV curing light source (4) is used to be sprayed on top coat layer (30) spray head solidifies.
4. the preparation method of color steel sheet according to claim 2 or 3, which is characterized in that the number spraying equipment
It (100) further include rack (1), the rack (1) is equipped with print platform (2), elevator head (3) and driving mechanism；
The print platform (2) is for carrying workpiece to be printed；
The spray head is arranged on the elevator head (3)；
The driving mechanism for driving the elevator head (3) to go up and down, with adjust the spray head and the print platform (2) it
Between distance.
5. the preparation method of color steel sheet according to claim 4, which is characterized in that
The driving mechanism includes motor, screw rod, nut seat and position-limit mechanism；
The screw rod is rotatably arranged on rack (1), and the motor is for driving screw rod to rotate；
The nut seat is set on screw rod, and the position-limit mechanism is used to limit nut seat, moves nut seat along screw rod；
The elevator head (3) is arranged on nut seat, for going up and down with nut seat.
6. the preparation method of color steel sheet according to claim 5, which is characterized in that
Have on the print platform (2) and vacuumizes hole (21).
7. the preparation method of color steel sheet according to claim 6, which is characterized in that
It is described number spraying equipment (100) on to print platform (2) with top coat layer (30) metal substrate printed patterns when,
One layer of air-permeable paper is spread between metal substrate (10) and print platform (2).
8. the preparation method of color steel sheet according to claim 4, which is characterized in that
Suction nozzle and vacuum pump are additionally provided in the rack；
The suction nozzle is connected to the spray head；
The vacuum pump is used for through suction nozzle to vacuumizing inside the spray head.
9. according to claim 1 to the preparation method of color steel sheet described in any one of 3,6 to 8, which is characterized in that
The thickness of the pattern layer (40) is no more than 28 microns.
10. according to claim 1 to the preparation method of color steel sheet described in any one of 3,6 to 8, which is characterized in that
In step sl to the side surface passivating treatment of metal substrate (10) by the way of degreasing.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112221768A (en) * | 2019-08-20 | 2021-01-15 | 杭州浙达精益机电技术股份有限公司 | Preparation method of color steel plate and color steel plate production equipment |
| CN112557298A (en) * | 2019-09-26 | 2021-03-26 | 上海梅山钢铁股份有限公司 | Method for detecting surface adhesive force of cold-rolled electroplated tin steel plate |
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| CN112221768B (en) * | 2019-08-20 | 2022-02-22 | 杭州浙达精益机电技术股份有限公司 | Preparation method of color steel plate |
| CN112557298A (en) * | 2019-09-26 | 2021-03-26 | 上海梅山钢铁股份有限公司 | Method for detecting surface adhesive force of cold-rolled electroplated tin steel plate |
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