CN117244758A - Ship electrostatic spraying construction process and device - Google Patents
Ship electrostatic spraying construction process and device Download PDFInfo
- Publication number
- CN117244758A CN117244758A CN202311143725.1A CN202311143725A CN117244758A CN 117244758 A CN117244758 A CN 117244758A CN 202311143725 A CN202311143725 A CN 202311143725A CN 117244758 A CN117244758 A CN 117244758A
- Authority
- CN
- China
- Prior art keywords
- spraying
- paint
- workpiece
- spray gun
- sprayed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000007590 electrostatic spraying Methods 0.000 title claims abstract description 48
- 230000008569 process Effects 0.000 title claims abstract description 45
- 238000005507 spraying Methods 0.000 claims abstract description 127
- 239000007921 spray Substances 0.000 claims abstract description 90
- 239000003973 paint Substances 0.000 claims abstract description 85
- 238000000576 coating method Methods 0.000 claims abstract description 56
- 239000011248 coating agent Substances 0.000 claims abstract description 55
- 238000002156 mixing Methods 0.000 claims abstract description 22
- 230000003749 cleanliness Effects 0.000 claims abstract description 18
- 230000007613 environmental effect Effects 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims description 22
- 239000000523 sample Substances 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000005686 electrostatic field Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 206010043417 Therapeutic response unexpected Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000008736 traumatic injury Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- 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
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/084—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to condition of liquid or other fluent material already sprayed on the target, e.g. coating thickness, weight or pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/10—Arrangements for supplying power, e.g. charging power
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The application discloses a ship electrostatic spraying construction process and device, wherein the method comprises the following steps: s1, detecting the cleanliness of the surface of a workpiece to be sprayed before spraying; s2, detecting environmental parameters of a spraying space; s3, obtaining information of a workpiece to be sprayed currently, matching corresponding paint and confirming component proportion of the paint, mixing the paint and conveying the paint to a spray gun; s4, setting corresponding electrostatic controller parameters according to the surface spraying information of the sprayed workpiece; s5, spraying the paint by the spray gun perpendicular to the spraying surface; s6, measuring the wet film thickness of the coating in real time in the spraying process, and adjusting construction parameters according to the wet film thickness; s7, after the spraying is finished, the coating is dried, and after the coating is accepted, the coating is transferred to the next working procedure for construction. The method forms a complete and reliable electrostatic spraying construction process, can better guide electrostatic spraying construction, and fills the blank of electrostatic spraying of ships.
Description
Technical Field
The application relates to the technical field of ship manufacturing, in particular to a ship electrostatic spraying construction process and device.
Background
Electrostatic spraying is based on the principle that atomized spraying paint particles containing negative charges and sprayed workpieces containing positive charges form an electrostatic field to firmly adsorb paint microparticles on the surfaces of the workpieces to form good-effect coatings. The electrostatic spraying technology is widely applied to industries such as automobiles, household appliances, light industry and the like at present, and part of the technology is automatically operated, so that the technology has higher production efficiency and higher paint utilization rate, but the technology is not formed in the ship electrostatic spraying construction technology such as ship application range, environmental requirements, parameter conditions and the like.
Disclosure of Invention
The aim of the embodiment of the application is that: the ship electrostatic spraying construction process and the device can solve the problems in the prior art, and form a complete and reliable ship electrostatic spraying construction process.
In order to achieve the above purpose, the present application adopts the following technical scheme:
in one aspect, a ship electrostatic spraying construction process is provided, which comprises the following steps:
s1, detecting the cleanliness of the surface of a workpiece to be sprayed before spraying, cleaning the surface of the workpiece according to a detection result, detecting the cleanliness of the surface of the workpiece again after the cleaning is finished, and transferring the workpiece to be sprayed to a spraying station to wait for spraying after the cleanliness meets the requirement;
s2, detecting environmental parameters of a spraying space, including detecting the environmental temperature and the atmospheric relative humidity, and confirming that the spraying operation can be performed when the environmental temperature and the atmospheric relative humidity meet the spraying conditions;
s3, obtaining information of a workpiece to be sprayed currently, matching corresponding paint and confirming component proportion of the paint, mixing the paint and conveying the paint to a spray gun;
s4, setting corresponding electrostatic controller parameters according to the surface spraying information of the sprayed workpiece, wherein the parameters comprise a set high-voltage value and a spraying current limit value;
s5, the spray gun is perpendicular to the spraying surface, the distance between the spraying surface and the spray gun is controlled to be between 250mm and 350mm, the spray gun needs to be equidistant from the spraying surface in the moving process, the compressed air pressure of the spray gun is controlled to be between 0.3MPa and 0.4MPa, the fluctuation difference is controlled to be between 0.04MPa and 0.06MPa, the moving speed of the spray gun is controlled to be between 0.8m/sec and 1.2m/sec, and the wind speed is controlled to be between 0.25m/S and 0.35 m/S;
s6, measuring the wet film thickness of the coating in real time in the spraying process, and adjusting construction parameters according to the wet film thickness, wherein the construction parameters comprise various operation parameters of a spray gun and distance parameters between the spray gun and a spraying surface;
s7, after the spraying is finished, the coating is dried, and after the coating is accepted, the coating is transferred to the next working procedure for construction.
Optionally, a plurality of sprayed workpieces with qualified cleanliness detection are arranged in a spraying space at intervals, when the spray gun moves to the spraying position of each workpiece in the spraying process, information corresponding to the sprayed workpieces is obtained, the paint used for spraying is adjusted, and after paint preparation is finished, the spray gun starts to spray relative to the workpieces.
Optionally, after spraying one workpiece, if the obtained coating information of the next workpiece is changed when continuous spraying is required, the spray gun needs to be moved to a coating recovery position to empty the coating in the spray gun before spraying, and new coating is conveyed again.
Alternatively, the same workpiece is arranged adjacently, or the sprayed paint is arranged adjacently, and the spray gun continuously sprays the adjacent workpieces without changing the paint and adjusting the spraying parameters.
Optionally, a workpiece database is established, relevant information of all workpieces to be sprayed is recorded, corresponding construction parameters and paint information are matched, when the spray gun moves to the workpiece waiting for spraying, the information of the workpieces is obtained and sent to the workpiece database, the workpiece database matches the corresponding workpiece information, then the corresponding construction parameters and the paint information are adjusted and taken out, and the spray gun sprays the workpieces according to the corresponding paint information and the construction parameters.
Optionally, the setting of the parameters of the electrostatic controller at least comprises three gears, the high voltage value set by the first gear is 80kV, and the set spraying current limit value is 100 mu A; the high voltage value set by the second gear is 60kV, and the set spraying current limit value is 100 mu A; the third gear set a high voltage value of 40kV and a spray current limit value of 80 μA.
Optionally, before the spray gun performs the spraying operation, the spraying space needs to be surrounded to form a relatively isolated construction space, and the construction space is effectively isolated from other construction spaces.
Optionally, after the spraying is finished, cleaning the equipment is required, including cleaning the inner and outer surfaces of the spray gun, cleaning the spray pipe, and cleaning the electrostatic spraying equipment.
Optionally, according to the coating nature of the sprayed workpiece, the sprayed workpiece is selectively protected, when the coating is easy to damage, the sprayed workpiece is surrounded by using a fence, then a protective film is wrapped on the workpiece, and a certain gap is reserved between the protective film and the coating.
On the other hand, still provide a boats and ships electrostatic spraying construction equipment, use above any boats and ships electrostatic spraying construction process, the device includes mixing arrangement, a plurality of feed tank and a plurality of resistivity probe, the discharge gate of feed tank with mixing arrangement's feed inlet passes through the feed pipe to be connected, the feed pipe is close to mixing arrangement's feed inlet one end is connected with the back flow, the back flow is connected to the return port of feed tank, the discharge gate of feed tank with mixing arrangement's feed inlet department all is provided with the resistivity probe, the resistivity probe is used for detecting resistivity in the feed tank, when detecting that the resistivity is grow in the twinkling of an eye, the coating in the feed tank flows back to in the feed tank through the back flow.
The beneficial effects of this application are: the method has the advantages that the surface cleanliness of a workpiece to be sprayed is detected, so that the surface of the workpiece meets the requirements of the spraying cleanliness, the sprayed paint can be effectively attached to the surface of the workpiece, the uniformity of paint spraying can be improved, meanwhile, the spraying environment parameters are strictly monitored, the spraying process is guaranteed to be carried out under the environment meeting the spraying conditions, the spraying quality and effect are improved, in the spraying process, the construction parameters of a spray gun are strictly controlled, the spray gun is guaranteed to spray at a uniform speed, all the paint can be effectively attached to the surface of the workpiece under the action of an electrostatic field after being sprayed, the attaching rate of the paint is improved, the working effect of the whole spraying process is improved, a set of complete and reliable ship electrostatic spraying process is formed overall, operators can be effectively guided to carry out electrostatic spraying construction on ships, the blank of the electrostatic spraying process in the ship manufacturing field is filled, meanwhile, the paint utilization rate can be greatly improved, the paint use amount is reduced, and the purpose of paint cost is further reduced is achieved; in addition, to having the coating ratio more than the bi-component, adopt the bubble condition of resistivity control feed pipe, avoid the bubble to influence mixing ratio, increased reflux unit simultaneously, carry again after the intensive mixing removal bubble in the coating backward flow to the feed tank that will contain the bubble and mix, make full use of coating raw and other materials, avoid the waste of resource.
Drawings
The present application is described in further detail below with reference to the drawings and examples.
Fig. 1 is a schematic flow chart of a ship electrostatic spraying construction process according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of the electrostatic spraying construction device for a ship according to the embodiment of the application.
In the figure:
1. a mixing device; 2. a feed tank; 3. a feed pipe; 4. a return pipe; 5. a resistivity probe.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present application more clear, the technical solutions of the embodiments of the present application are described in further detail below, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, unless explicitly stated and limited otherwise, the terms "connected," "secured" and "fixed" are to be construed broadly, as for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Embodiment one: an electrostatic spraying construction process for ships.
As shown in fig. 1, the embodiment provides a ship electrostatic spraying construction process, which comprises the following steps:
s1, detecting the cleanliness of the surface of a workpiece to be sprayed before spraying, cleaning the surface of the workpiece according to a detection result, detecting the cleanliness of the surface of the workpiece again after the cleaning is finished, and transferring the workpiece to be sprayed to a spraying station to wait for spraying after the cleanliness meets the requirement; the specific cleanliness detection method comprises the following steps:
s11, collecting a surface image of a workpiece;
s12, the computer image processing device sequentially performs surface image illumination removal processing, surface image splicing processing, surface image fusion processing, component equalization processing of the surface image, color extraction of the surface image, interference point removal of the surface image and duty ratio calculation of pollutants on the surface image acquired in the step s11, and finally obtains the processed surface image;
s13, comparing the surface image processed in the step S12 with a cleanliness standard, and if the cleanliness standard is met, transferring the workpiece to a spraying station to wait for spraying; if the cleaning degree standard is not met, the pollutant is marked, and a cleaning path is planned to clean until the cleaned surface image meets the cleaning degree standard.
The cleaning means for the surface of the workpiece can treat the defects of the surface coating of the workpiece by adopting Buddhist channels, sand paper or a power tool, and then carry out corresponding repair, and the repair needs to carry out adaptive repair on the damaged position according to different repair schemes of different defects, so that the surface of the workpiece after the traumatic injury repair can meet the spraying condition.
S2, detecting environmental parameters of a spraying space, including detecting the environmental temperature and the atmospheric relative humidity, and confirming that the spraying operation can be performed when the environmental temperature and the atmospheric relative humidity meet the spraying conditions; in the step, when the ambient temperature is between 10 ℃ and 30 ℃, the viscosity is too low, the electrostatic spraying is not facilitated, the solidification is too high, the spraying is likewise not facilitated, so that the ambient temperature is between 10 ℃ and 30 ℃ to ensure that the coating can be effectively attached to the surface of a workpiece, the coating cannot be solidified immediately, and the spraying effect is ensured; in addition, the temperature of the environment is controlled to be about 25 ℃ and the relative humidity of the atmosphere is controlled to be about 70%, so that the action time and space of the electrostatic magnetic field are provided, and meanwhile, no potential safety hazard in the spraying area is required to be ensured.
It should be noted that if the ambient temperature and the relative humidity of the atmosphere are not always satisfied, the ambient temperature can be increased by human intervention, such as heating, and the relative humidity of the atmosphere can be increased by humidification, and the intervention measures are suitable for a relatively closed spraying space.
S3, obtaining information of a workpiece to be sprayed currently, matching corresponding paint and confirming component proportion of the paint, mixing the paint and conveying the paint to a spray gun; the method comprises the steps of establishing a workpiece database, inputting relevant information of all workpieces to be sprayed, matching corresponding construction parameters and paint information, acquiring image information of the workpieces through photographing when a spray gun moves to the workpiece to be sprayed, sending the image information to the workpiece database, matching the corresponding workpiece information in the workpiece database, simply comparing an image template stored in the database with the acquired image information in a matching way, when the coincidence ratio reaches more than 90, indicating that the matching is correct, calling out the corresponding construction parameters and the paint information after the workpiece matching is completed, sending the paint information to the spray gun, and spraying the workpieces according to the corresponding paint information and the construction parameters in the spraying process by the spray gun.
It should be noted that before the paint is delivered to the spray gun, the use state of the paint needs to be confirmed, specifically, before the paint is opened, the variety, the brand, the color, the delivery date and the like of the paint should be carefully checked and confirmed, and whether the paint has the defects of gelation, precipitation, skinning, flooding and the like should be carefully judged after the paint is opened, if the quality of the paint is found or suspected to be problematic, the paint manufacturer should be immediately notified to check and confirm.
S4, setting corresponding electrostatic controller parameters according to the surface spraying information of the sprayed workpiece, wherein the parameters comprise a set high-voltage value and a spraying current limit value; the parameter setting of the electrostatic controller at least comprises three gears, the high voltage value set by the first gear is 80kV, and the set spraying current limit value is 100 mu A; the high voltage value set by the second gear is 60kV, and the set spraying current limit value is 100 mu A; the third gear set a high voltage value of 40kV and a spray current limit value of 80 μA. The setting parameters corresponding to the three gears can be applied to all workpieces to be sprayed, but for better coating effect, it is preferable that the large plane pressure can be larger than a little, such as a first gear and a second gear; the small part uses smaller pressure, such as third gear, so that the effect of the electrostatic magnetic field is better, the coating leveling property is poor due to the fact that the safety risk is caused by the overlarge pressure, the electrostatic effect is not obvious due to the fact that the pressure is too small, the effect of electrostatic spraying is not exerted, and therefore the application of the electrostatic magnetic field is required to be selected adaptively, and the spraying effect is relatively better in quality.
S5, after various construction parameters and paint types in the spraying process are determined, necessary electrostatic spraying operation approval is required to be completed so as to ensure construction safety, after approval is passed, integrity of all parts of the spray gun is required to be carefully checked and connection is standardized before formal spraying is performed, and after no problem is confirmed, the spray gun is formally started to spray, specifically: the spray gun is perpendicular to the spraying surface, the distance between the spraying surface and the spray gun is controlled to be between 250mm and 350mm, the spray gun needs to be equidistant from the spraying surface in the moving process, the compressed air pressure of the spray gun is controlled to be between 0.3MPa and 0.4MPa, the fluctuation difference is controlled to be between 0.04MPa and 0.06MPa, the moving speed of the spray gun is controlled to be between 0.8m/sec and 1.2m/sec, and the wind speed is controlled to be between 0.25 m/sec and 0.35 m/sec; the operation parameters of the spray gun need to be adjusted according to the actual construction condition, for example, the moving speed of the spray gun needs to be selected according to the construction condition and the coating thickness requirement, and the distance between the spraying surface and the spray gun needs to be adjusted according to the pressure, the coating type, the nozzle condition and the wind speed instead of a fixed set value so as to achieve the best spraying effect.
S6, in order to ensure uniformity and thickness of the coating, measuring the wet film thickness of the coating in real time in the spraying process, and adjusting construction parameters according to the wet film thickness, wherein the construction parameters comprise various operation parameters of a spray gun and distance parameters between the spray gun and a spraying surface; the wet film thickness of the coating is measured by a wet film card, and the operating parameters of the spray gun are adjusted by controlling voltage and current after the measurement, if the distance between the spray surface and the spray nozzle of the spray gun is too large, the distance between the spray nozzle and the spray surface can be reduced by changing the spray nozzle, so that the spray gun is simply adjusted to be small, and the spray gun is adjusted to be large.
S7, after the spraying is finished, the coating is dried, and after the coating is accepted, the coating is transferred to the next working procedure for construction.
In some embodiments, a plurality of sprayed workpieces with qualified cleanliness detection are arranged in a spraying space at intervals, when a spray gun moves to a spraying position of each workpiece in the spraying process, information corresponding to the sprayed workpieces is obtained, paint used for spraying is adjusted, and after paint preparation is finished, the spray gun starts to spray relative to the workpieces.
Further, when a plurality of workpieces are continuously sprayed, after one workpiece is sprayed, the spray gun automatically moves to the front of the next workpiece to be sprayed, spraying information of the workpiece is obtained through photographing, if the obtained coating information of the next workpiece is changed, the spray gun needs to move to a coating recovery position to empty the coating in the gun before spraying, and new coating is conveyed again, so that the purpose of planning is to ensure that each spraying is correct and effective, avoid the condition of disordered use of the coating, and improve the accuracy of electrostatic spraying.
In addition, in order to improve the spraying efficiency, the same workpieces are adjacently arranged, the same workpiece spraying requirements are the same, the used coating is the same, or the sprayed coating is adjacently arranged, the spray gun continuously sprays the adjacent workpieces under the condition that the coating does not need to be replaced and the spraying parameters are adjusted, that is, the spray gun does not spray when only moves among the workpieces in the spraying process, the rest time can quickly enter a spraying state, and the spraying efficiency can be greatly improved. It should be noted here that the installation direction and the position of the workpiece are kept as consistent as possible, so that the spray gun does not need to be additionally adjusted, and only the horizontal position or the vertical position needs to be changed.
Meanwhile, according to the condition that a plurality of workpieces are continuously sprayed, the workpieces can be classified according to the types, such as a plurality of rows or a plurality of columns, the workpieces with the same or the same spraying requirements are arranged on the same row or the same column at intervals, a paint recovery device is arranged between the workpieces needing to be coated, meanwhile, the travel path of a spray gun is preset, the spray gun is controlled to recover the paint at the paint recovery device and convey the paint again, the spraying efficiency can be greatly improved through such construction setting, manual operation is not needed in the whole process, and the full-automatic intelligent spraying construction is realized.
Optionally, before the spray gun performs the spraying operation, the spraying space needs to be surrounded to form a relatively isolated construction space, and the relatively isolated construction space is effectively isolated from other construction spaces, so that the influence of surrounding pollution sources on the spraying is avoided. In addition, the mixed operation with other work types can be avoided by coordinating the relation between the work types.
Preferably, after the spraying is finished, cleaning of the equipment is required, including cleaning of the inner and outer surfaces of the spray gun, cleaning of the spray pipe, and cleaning of the electrostatic spraying equipment.
Preferably, the sprayed workpiece is selectively protected according to the coating property of the sprayed workpiece, when the coating is easy to damage, the sprayed workpiece is surrounded by the fence, then the workpiece is coated with the protective film, and a certain gap is reserved between the protective film and the coating.
It is worth mentioning that the paint types suitable for the electrostatic spraying construction process include: alkyd paint, pure epoxy paint, modified epoxy paint, phenolic epoxy paint and polyurethane paint, and the parts suitable for spraying comprise: the spraying operation of the inner and outer surfaces of most sections in the section coating stage, and the coating operation of the outer wall, the weather deck, the topside and the cabins in the section coating stage can be realized, so that the paint spraying operation of all parts of the ship can be satisfied.
Embodiment two: an electrostatic spraying construction device for ships.
Under the condition that other parameters are certain, the electrostatic spraying of the common paint for ships is suitable for the electrostatic spraying paint, and the resistivity of the electrostatic spraying paint is in the range of 10-40 MΩ & cm. The resistivity is low, and the electrostatic voltage with high conductivity is easy to run off to the ground; the conductivity is high, the sprayed particles are not easy to accept electrostatic charge, and the transmission efficiency is poor. The two-component spraying equipment often generates bubbles in the feed pipe because of high viscosity of the coating, influences the proportioning accuracy, and causes the non-drying of the coating.
Thus, as shown in fig. 2, this embodiment provides a ship electrostatic spraying construction device, using the ship electrostatic spraying construction process as described in example one, the device includes a mixing device 1, a plurality of feed tanks 2, and a plurality of resistivity probes 5, the discharge ports of the feed tanks 2 are connected with the feed ports of the mixing device 1 through a feed pipe 3, one end of the feed pipe 3 near the feed ports of the mixing device 1 is connected with a return pipe 4, the return pipe 4 is connected to the return port of the feed tank 2, the resistivity probes 5 are disposed at both the discharge ports of the feed tanks 2 and the feed ports of the mixing device 1, the resistivity probes 5 are used for detecting the resistivity in the feed pipe 3, and when the instantaneous increase of the resistivity is detected, the paint in the feed pipe 3 flows back into the feed tank 2 through the return pipe 4.
The two feeding tanks 2 are specifically arranged and are suitable for two-component spraying equipment, the resistivity probes 5 are arranged at the discharge ports of the two feeding tanks 2 and the feed inlet of the mixing device 1, electronic control valves are arranged on the feeding pipe 3 and the return pipe 4, and the on-off of each pipeline is controlled through the electronic control valves. When bubbles are generated in the feed pipe 3, the resistivity detected by the resistivity probe 5 will become large instantaneously, which indicates that bubbles appear in the current pipeline, and the feeding to the mixing device 1 needs to be stopped, so that the feeding of the paint on the feed pipe 3 needs to be stopped, the electronic control valve on the return pipe 4 is opened, the paint on the feed pipe 3 returns to the feed tank 2 through the return pipe 4, and the feeding is performed again after the bubbles are mixed and stirred. In the scheme, the resistivity probe 5 is adopted to monitor the condition of bubbles in the feed pipe 3 in real time, the mixing proportion is prevented from being influenced by the bubbles, the return pipe 4 is increased, the paint containing the bubbles is returned to the feed tank 2, and the raw material of the paint is fully utilized.
In summary, through the cooperation of the electrostatic spraying construction process and the device, the utilization rate of the paint can be effectively improved, the consumption of the paint is reduced, the cost of the paint is reduced, the use of the paint is saved in the ship construction process, the emission of VOCs (volatile organic compounds) can be reduced, and the auxiliary power is green and sustainable development is realized.
In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are merely for convenience of description and to simplify the operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the application. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.
In the description of the present specification, reference to the terms "one embodiment," "example," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The technical principles of the present application are described above in connection with specific embodiments. These descriptions are provided only for the purpose of illustrating the principles of the present application and should not be construed as limiting the scope of the present application in any way. Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification without undue burden from the present disclosure.
Claims (10)
1. The electrostatic spraying construction process for the ship is characterized by comprising the following steps of:
s1, detecting the cleanliness of the surface of a workpiece to be sprayed before spraying, cleaning the surface of the workpiece according to a detection result, detecting the cleanliness of the surface of the workpiece again after the cleaning is finished, and transferring the workpiece to be sprayed to a spraying station to wait for spraying after the cleanliness meets the requirement;
s2, detecting environmental parameters of a spraying space, including detecting the environmental temperature and the atmospheric relative humidity, and confirming that the spraying operation can be performed when the environmental temperature and the atmospheric relative humidity meet the spraying conditions;
s3, obtaining information of a workpiece to be sprayed currently, matching corresponding paint and confirming component proportion of the paint, mixing the paint and conveying the paint to a spray gun;
s4, setting corresponding electrostatic controller parameters according to the surface spraying information of the sprayed workpiece, wherein the parameters comprise a set high-voltage value and a spraying current limit value;
s5, the spray gun is perpendicular to the spraying surface, the distance between the spraying surface and the spray gun is controlled to be between 250mm and 350mm, the spray gun needs to be equidistant from the spraying surface in the moving process, the compressed air pressure of the spray gun is controlled to be between 0.3MPa and 0.4MPa, the fluctuation difference is controlled to be between 0.04MPa and 0.06MPa, the moving speed of the spray gun is controlled to be between 0.8m/sec and 1.2m/sec, and the wind speed is controlled to be between 0.25m/S and 0.35 m/S;
s6, measuring the wet film thickness of the coating in real time in the spraying process, and adjusting construction parameters according to the wet film thickness, wherein the construction parameters comprise various operation parameters of a spray gun and distance parameters between the spray gun and a spraying surface;
s7, after the spraying is finished, the coating is dried, and after the coating is accepted, the coating is transferred to the next working procedure for construction.
2. The electrostatic spraying construction process for ships according to claim 1, wherein a plurality of sprayed workpieces with qualified cleanliness detection are arranged in a spraying space at intervals, when the spray gun moves to a spraying position of each workpiece in the spraying process, information corresponding to the sprayed workpieces is obtained, the paint used for spraying is adjusted, and after paint preparation is completed, the spray gun starts to spray relative to the workpieces.
3. The electrostatic spraying construction process of a ship according to claim 1, wherein when the continuous spraying is required after one workpiece is sprayed, if the acquired paint information of the next workpiece is changed, the spray gun is required to be moved to a paint recovery position for emptying the paint in the gun and re-conveying new paint before spraying.
4. The electrostatic spraying construction process of a ship according to claim 1, wherein the same work pieces are adjacently disposed or the same sprayed paint is adjacently disposed, and the spray gun continuously sprays the adjacent work pieces without changing the paint and adjusting the spraying parameters.
5. The ship electrostatic spraying construction process according to claim 1, wherein a workpiece database is established, relevant information of all workpieces to be sprayed is recorded, corresponding construction parameters and paint information are matched, when a spray gun moves to a workpiece waiting for spraying, the information of the workpiece is obtained and sent to the workpiece database, the workpiece database matches the corresponding workpiece information, then the corresponding construction parameters and the paint information are adjusted, and the spray gun sprays the workpiece according to the corresponding paint information and the construction parameters.
6. The electrostatic spraying construction process of the ship according to claim 1, wherein the setting of parameters of the electrostatic controller at least comprises three gears, the high voltage value set by the first gear is 80kV, and the spraying current limit value set by the first gear is 100 μa; the high voltage value set by the second gear is 60kV, and the set spraying current limit value is 100 mu A; the third gear set a high voltage value of 40kV and a spray current limit value of 80 μA.
7. The marine electrostatic spraying process according to claim 1, wherein the spraying space is required to be surrounded to form a relatively isolated construction space from other construction spaces before the spraying operation is performed by the spray gun.
8. The electrostatic spraying construction process of a ship according to claim 1, wherein after the spraying is finished, cleaning of equipment is required, including cleaning of inner and outer surfaces of a spray gun, cleaning of a paint spraying pipe, and cleaning of electrostatic spraying equipment.
9. The electrostatic spraying construction process for a ship according to claim 1, wherein the sprayed workpiece is selectively protected according to the coating property of the sprayed workpiece, when the coating is easily damaged, the sprayed workpiece is surrounded by a fence, and then a protective film is coated on the workpiece, and a certain gap is left between the protective film and the coating.
10. A ship electrostatic spraying construction device, characterized in that the ship electrostatic spraying construction process according to any one of claims 1-9 is used, the device comprises a mixing device, a plurality of feed tanks and a plurality of resistivity probes, the discharge port of the feed tanks is connected with the feed port of the mixing device through a feed pipe, one end of the feed pipe, which is close to the feed port of the mixing device, is connected with a return pipe, the return pipe is connected to the return port of the feed tanks, the resistivity probes are arranged at the discharge port of the feed tanks and the feed port of the mixing device, the resistivity probes are used for detecting the resistivity in the feed pipes, and when the resistivity is detected to be instantaneously increased, the paint in the feed pipes flows back into the feed tanks through the return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311143725.1A CN117244758A (en) | 2023-09-05 | 2023-09-05 | Ship electrostatic spraying construction process and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311143725.1A CN117244758A (en) | 2023-09-05 | 2023-09-05 | Ship electrostatic spraying construction process and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117244758A true CN117244758A (en) | 2023-12-19 |
Family
ID=89136023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311143725.1A Pending CN117244758A (en) | 2023-09-05 | 2023-09-05 | Ship electrostatic spraying construction process and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117244758A (en) |
-
2023
- 2023-09-05 CN CN202311143725.1A patent/CN117244758A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60318947T2 (en) | Use of a device for applying a powdery flux | |
| CA2102895C (en) | Method and apparatus for cleaning hoses | |
| EP2180956B1 (en) | Method for supplying a coating system with a particulate auxiliary material | |
| US20070235392A1 (en) | Method and apparatus for recycling process fluids | |
| DE112010003094T5 (en) | Electrostatic coating device for electrically conductive coating material | |
| EP2065101A1 (en) | Varnishing machine | |
| DE10259805A1 (en) | On-board device for fuel supply for a motor vehicle | |
| US5309403A (en) | Modular continuous flow paint delivery system | |
| CN101884963A (en) | Spaying system with spray head cleaning device and control method thereof | |
| CN106249084A (en) | Rain spraying environment simulation experiment system | |
| EP0805720B1 (en) | Device for internal coating of pipes | |
| CN117244758A (en) | Ship electrostatic spraying construction process and device | |
| EA005485B1 (en) | Method and apparatus, with redundancies, for treating substrate plastic parts to accept paint without using adhesion promoters | |
| KR100867237B1 (en) | Method and apparatus, with redundancies, for treating substrate plastic parts to accept paint without using adhesion promoters | |
| DE102008037428A1 (en) | Mercury ion gas standard generator for a continuous emission monitoring system | |
| CN206009079U (en) | Camouflage color automatic spray apparatus | |
| CN114011635A (en) | Coating powder spraying line | |
| CN208101400U (en) | A kind of ink jet printer automatic ink feeder of fast and ink-jet apparatus | |
| CN105612007A (en) | Nozzle adjustment aid, and method | |
| CN105457947A (en) | Anticorrosion cleaning assembly for surface of equipment in island environment | |
| DE19940542A1 (en) | Method and arrangement for transporting electrically conductive paint | |
| DE19940541A1 (en) | Method and arrangement for transporting electrically conductive paint | |
| CN206262725U (en) | Digital camouflage spray equipment | |
| CN220725670U (en) | Wall spraying device for house construction | |
| EP3743215A1 (en) | Multicolor powder center for supplying at least one powder spraying device with different types of coating powder as required |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |