CN101151102B - Film forming equipment - Google Patents

Film forming equipment Download PDF

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Publication number
CN101151102B
CN101151102B CN2006800104235A CN200680010423A CN101151102B CN 101151102 B CN101151102 B CN 101151102B CN 2006800104235 A CN2006800104235 A CN 2006800104235A CN 200680010423 A CN200680010423 A CN 200680010423A CN 101151102 B CN101151102 B CN 101151102B
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CN
China
Prior art keywords
spray gun
application
coating material
conveyer
spray
Prior art date
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Expired - Fee Related
Application number
CN2006800104235A
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Chinese (zh)
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CN101151102A (en
Inventor
竹内徹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kansai Paint Co Ltd
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Kansai Paint Co Ltd
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Publication of CN101151102A publication Critical patent/CN101151102A/en
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Publication of CN101151102B publication Critical patent/CN101151102B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines 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
    • B05B13/02Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines 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
    • B05B13/02Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08Arrangements 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
    • B05B12/12Arrangements 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines 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
    • B05B13/02Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0221Means 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
    • B05B13/0264Overhead conveying means, i.e. the object or other work being suspended from the conveying means; Details thereof, e.g. hanging hooks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00Machines 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
    • B05B13/02Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0405Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads
    • B05B13/041Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with reciprocating or oscillating spray heads with spray heads reciprocating along a straight line
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00Spray booths
    • B05B16/60Ventilation arrangements specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1014Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/08Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter

Landscapes

  • Spray Control Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The present invention provides film forming equipment that can reduce the space necessary for coating. The film forming equipment has an object conveyor for moving an object (50); a spray gun conveyor (41) for moving a spray gun (30) that sprays a coating material; and a controller for controlling operations of the object conveyor (41), the spray gun (30), and the spray gun conveyor, wherein the controller moves the object (50) in a specific direction while spraying a coating material from the spray gun (30) and reciprocates the object (50) so that partial layer coating can be sequentially conducted, and while coating the object (50), the controller shifts the object (50) and the spray gun (30) while keeping the relative positions of the object and the spray gun to each other constant.

Description

Film formation device
Technical field
The present invention relates to film formation device.
Background technology
For object being applied the coating of homogeneous thickness, the coating process routine has adopted the spray pattern (spray pattern) of the coating material formation of using gun spraying.Layer application carried out in mode shown in for example Fig. 7 with the film formation device that comprises air regulator, spray gun etc.In other words, by forming spray pattern 153 from the gun spraying coating material that is fixed on (coating booth) 151 centers between application, and by using object conveyer (not shown), move up and down the object 152 that is placed on spray gun below at a predetermined velocity, simultaneously with direction shown in the arrow S (be in the accompanying drawing from left to right) with the predetermined distance of object displacement.
The layer application also can by from the gun spraying coating material to the object 152 that is fixed on 151 centers between application, forming spray pattern 153 carries out, as shown in Figure 8, use is arranged in the spray gun of object 152 tops, and move up and down spray gun at a predetermined velocity, make the predetermined distance of its displacement with direction shown in the arrow S (be in the accompanying drawing from left to right) simultaneously.
Disclosure of the Invention
[the problem to be solved in the present invention]
When fixedly spray gun and mobile object carry out layer application as mentioned above, must begin a layer application when object is in when leaving the spray pattern position, and application is passed through spray pattern fully until object continuously.In other words, application needs excessive space, i.e. (width of the length of object * 2+ spray pattern) * (width of the width of object * 2+ spray pattern).
Similarly, when fixed object and mobile spray gun carry out layer application, when spray pattern is in the position of leaving object, must begin a layer application, and application is passed through object fully until spray pattern continuously.In other words, application needs excessive space, i.e. (width of the length+spray pattern of object * 2) * (width of the width+spray pattern of object * 2).In addition, when carrying out application, should between inner surface between application and spray pattern, provide additional space,, even need greater room in order to avoid spray pattern stains between being coated in this mode.
Application has needed this excessive spatial constraints can be mounted to the position of film device, and the air in needing between a large amount of energy adjustment applications.
To have finished the present invention in order addressing this problem, and the film formation device that can reduce the application requisite space to be provided.
[method of dealing with problems]
Can realize the object of the invention with a kind of film formation device, this film formation device comprises the object conveyer that is used for mobile object; The spray gun conveyer that is used for the spray gun of mobile atomized spray painting material; Be used to control the controller of object conveyer, spray gun, the operation of spray gun conveyer, wherein said controller is with the specific direction mobile object, simultaneously from the gun spraying coating material, and object is moved back and forth, make and to carry out the part layer application successively, and in the application object, controller makes the displacement of object and spray gun, and keeps object and spray gun position relative to each other constant.
In this film formation device, the direction of displacement of preferred object and spray gun is opposite with the moving direction of the object of wanting the part layer application.
Also preferably when the center from gun spraying be located substantially on object on direction of displacement vertically in the middle of the time, object and spray gun are shifted.
Also preferred controller makes spray gun reciprocation with the method for synchronization in the opposite direction with the reciprocating side of described object.
The invention effect
The invention provides the film formation device that can reduce the application requisite space.
The accompanying drawing summary
Fig. 1 has showed the device that the formation of one embodiment of the present invention is filmed.
Fig. 2 is the profile of X-X line in Fig. 1.
Fig. 3 has showed the cross-sectional view of major part, is used to illustrate the motion of object and spray gun.
Fig. 4 has showed the cross-sectional view of major part, is used to illustrate the operation of the film formation device of another embodiment of the present invention.
Fig. 5 is a key diagram, has showed in actual application step the route of painting device above the object that will be coated.
Fig. 6 is the key diagram of coated film forming process in the actual application step (formation profile).
Fig. 7 is the figure that the coating process of traditional film formation device is used in explanation.
Fig. 8 is the figure that the coating process of another kind of traditional film formation device is used in explanation.
Fig. 9 is the figure of explanation another kind of coated film forming process in actual application step.
[explanation of numerical chracter]
1 forms the device of filming
10 air handling systems
15 pipes
20 painting device main bodys
21 air supply chambers
Between 22 applications
23 exhaust chambers
24 gas supply filters
25 dust collection filters
30 spray guns
40 storage compartments (storage member)
41 object conveyers
42 stationary fixtures
50 objects
Implement best mode of the present invention
Be used to form the device of filming below with reference to description of drawings the present invention.Fig. 1 is a cross-sectional view, the structure that the device that being used to form of one embodiment of the present invention filmed has been showed in signal, and Fig. 2 is along the section plan of X-X line among Fig. 1.
As shown in Figure 1, described film formation device 1 comprises air handling system 10, pipe 15, painting device main body 20, conveyer storage compartment 40 and controller (not shown).The air that air handling system 10 provides temperature and humidity to be applicable to painting device main body 20 makes air handling system 10 be communicated with painting device main body 20 by pipe 15 at its top.
Painting device main body 20 is divided between air supply chamber 21, application 22 and exhaust chamber 23 downwards from the top, make between air supply chamber 21 and application 22 to be separated each other by gas supply filter 24, and between application 22 and exhaust chamber 23 separated each other by dust collection filter 25.
Air supply chamber 21 comprises Temperature Detector and the moisture detector (not shown) that is used to detect air supply chamber 21 temperature and humidities.The example that temperature is surveyed the inspection device is a temperature sensor, for example thermistor and thermocouple.Humidity sensor for example high-polymer membrane humidity sensor, Ceramic Humidity Sensor and electrolyte humidity sensor can be used as moisture detector.
22 comprise spray gun 30 between application, and it plays the effect of coating material atomizer.(not shown)s such as spray gun conveyer, coating material feedway, air control panel, high voltage generator, cable are connected to spray gun 30.The structure of spray gun 30 makes and can change and object 50 distances.
Revolution bell atomization spraying device, air atomization coating device etc. can be used as spray gun 30.Revolution bell atomization spraying device is included in the clock cup of high speed rotary on the application rifle, and is turned round the centrifugal force atomizing that produces by this clock cup by the coating material that the clock cup is discharged.Revolution bell atomization spraying device comprises the air nozzle that is used to launch shaping air (shaping air), described shaping air is controlled the width of the spray pattern of coating material by regulating from the scattering direction of clock cup outer rim with the coating material atomization particle of the direction scattering of outside radiation.Air-atomizing type painting device comprises the nozzle that is used to penetrate compressed air (atomizing air) around the coating material outlet, and by discharging coating material and the atomization spraying material from exhaust outlet, simultaneously from nozzle ejection compressed air.Air-atomizing type painting device comprises typing air nozzle (pattern airnozzle) in the periphery of compressed-air atomizer usually, with the width of control spray pattern.
Spray gun conveyer (not shown) is the device by the mobile spray gun 30 of instruction of the controller of accepting to describe subsequently.Cylinder, dual-axis actuator etc. are the examples of spray gun conveyer.The example of coating material feedway is a syringe pump, and wherein the syringe piston of being filled with the specified quantitative coating material by the micro-actuator compressing provides coating material.Other condition of the air pressure of the described clock of air control panel control revolution, the flow velocity of shaping air and revolution bell atomization spraying device.The atomization particle that high pressure generator uses static will be to make fine particle with atomizer is applied to object 50.
Exhaust chamber 23 comprises the exhaust apparatus (not shown) that is used for the air that discharged air regulating system 10 provides.
Shown in Fig. 2 profile, 22 adjacent layouts between storage compartment 40 and application, and comprise the conveyer 41 that is used to transmit object 50.Separate between storage compartment 40 and application 22 dividing plate 43 below form the isolated part (spacer) 44 of specific dimensions.Conveyer 41 comprises stationary fixture 42, is used for by fixing 22 the object 50 between application of isolated part 44.Can use single axis actuator, dual-axis actuator as conveyer 41, as long as conveyer 41 can be between application freely phoresied object 50 on a surface in 22.In the present embodiment, use dual-axis actuator as conveyer 41.
Described controller is connected to air handling system 10, temperature sensor, humidity sensor, spray gun 30, spray gun conveyer and object conveyer 41 etc., and controls its operation.
Below explanation uses the film formation device 1 of present embodiment to form the method for filming on object 50.
Beginning offers the scheduled volume coating material coating material feedway with spray gun 30.Then object 50 is fixed between application the transmission anchor clamps 42 that are equipped with conveyer 41 in 22.By being opened into film device 1, operation air handling system 10, temperature sensor, humidity sensor, spray gun 30, object conveyer 41, spray gun conveyer, exhaust apparatus and controller.
Air handling system 10 provides air to air supply chamber 21 by conduit 15.When the signal feedback of the temperature and humidity sensor output that is equipped with from air supply chamber 21, controller arrives substantially constant with air themperature and the humidity regulation that air handling system 10 provides.The air that regulates temperature and humidity is delivered between application 22 through gas supply filter 24.
Form and film by moving back and forth object 50, simultaneously in regulating between application under the condition of temperature and humidity from spray gun 30 atomized spray painting materials, and with specific direction mobile object 50, thereby carry out the part layer application successively, on object 50, form and film.Hereinafter will describe form film during, be used to control the method and the operation of object 50 and spray gun 30.
The air-flow delivery that the excessive atomization particle that is not deposited on the coating material on the object 50 is supplied by air handling system 10, and deliver to exhaust chamber 23.In this process, remove the atomization particle of coating material with dust collection filter 25.To deliver to exhaust chamber 23 by the air of dust collection filter 25, discharge by exhaust apparatus then.
Below with reference to the profile of 22 major parts between the application of showing among Fig. 3, method and its operation of control object 50 and spray gun 30 are described.When the beginning application, the object 50 that controller is regulated the spray gun (not shown) and will be arranged, consequently spray pattern and the object 50 from gun spraying leaves mutually, shown in Fig. 3 (a).In the time of from the gun spraying coating material, operation object conveyer (not shown) moves up and down object 50, and makes it with the displacement of direction shown in the arrow S, carries out the part layer application successively.In the present embodiment, at each half of finishing round trip (round-trip), controller makes the predetermined distance of object 50 displacement with direction shown in the arrow S, installs on the object 50 thereby layer is coated with.
Secondly, shown in Fig. 3 (b) and 3 (c), during the application object 50, make object 50 and spray gun displacement, keep the specific relative position of object 50 and spray gun simultaneously with predetermined direction.In this embodiment, when carrying out the part layer application successively on object 50, described direction of displacement is opposite with above-mentioned (direction shown in the arrow S).Reduced the required space of application with this direction mobile object 50.
Displacement opportunity is set, make when the center (corresponding to spraying center) of spray pattern 31 from the spray gun ejection be located substantially on object 50 vertically in the middle of the time, object 50 is shifted, so that carry out the part application successively in the direction of displacement (direction shown in the arrow S) of object 50.By at this time shift object, guarantee that enough spaces pollute between applications 22 inner surface 22a to prevent spray pattern 31, reduce the required space of application simultaneously.Can be the opportunity of displacement when object 50 moves with direction shown in the arrow S, or object 50 is when moving back and forth.
The described shift amount of object 50 and spray gun is set, makes and not pollute inner surface between application from the spray pattern 31 of the coating material of spray gun ejection.
Thereafter, shown in Fig. 3 (d), when moving back and forth object 50, object 50 is finished each half of round trip, makes it with the predetermined distance of the displacement of direction shown in the arrow S, thereby carry out a layer application on object 50.When object 50 passes through spray pattern 31 fully shown in Fig. 3 (e), finish application.
As mentioned above, present embodiment film formation device 1 is constructed like this, makes during the application object 50, object 50 and spray gun can be shifted, keep the relative position of object 50 and spray gun constant simultaneously, therefore can reduce the required space of application, and prevent the deviation of the alignment of the layer application on the object 50.
In addition, owing to reduced the application requisite space, can make 22 miniaturizations between application.This has reduced and has kept between application the constant and required energy of temperature and humidity in 22.
Keep between application in 22 temperature and humidity constant because can reduce energy, so can use small air adjuster 10 with low latitude controlled atmosphere joint performance.This has realized the further miniaturization of film formation device 1, and has reduced equipment cost.
Between application 22 miniaturization also on the whole miniaturization film formation device 1, therefore improved the operating efficiency that is mounted to film device 1, and alleviated the position restriction that is mounted to film device.
The shift amount of spray gun is arranged in the scope, makes and not pollute between application 22 inner surface 22a from the spray pattern 31 of the coating material of gun spraying.Therefore, do not have coating material to adhere to the risk of inner surface 22a, reduced cleaning or other safeguards step, improved the efficient of coating process.
The above-mentioned an embodiment of the invention that illustrated; Yet the scope of the invention is not limited to this.For example, can also control the operation of spray gun conveyer, make spray gun 30, move back and forth in the direction opposite with object 50 with the method for synchronization.Operation below with reference to Fig. 4 explanation object 50 and spray gun 30 when this control method of use.
When beginning during application, shown in Fig. 4 (a), controller is regulated object 50 and spray gun to such position, make from the spray pattern of gun spraying and object 50 mutually away from.In the time of from the gun spraying coating material, operation object conveyer (not shown) makes object 50 displacements with direction shown in the arrow H, and operation spray gun conveyer, so that the spray gun displacement, thereby make spray pattern 31 to be shifted with square (being direction shown in the arrow I) in the opposite direction shown in the arrow H.
Regulate the operation of object conveyer and spray gun, make when object 50 is finished the first half round trips, spray gun is also finished the first half round trips, and shown in Fig. 4 (b), and object conveyer and spray gun are in the position that coating material in the spray pattern 31 is not applied to object 50.Then with direction shown in the arrow S with the predetermined distance of object 50 displacement.Shown in Fig. 4 (c), object 50 moves in the second half round trips, and spray gun also moves in the second half round trips, and makes spray pattern 31 displacements with direction shown in the arrow J.Carry out application by repeating such operation.Constant mutually by the relative velocity that makes spray gun and object 50, can form and have filming of homogeneous thickness.
Shown in Fig. 4 (d) and 4 (e), during the application object 50, make object 50 and spray gun displacement with predetermined direction (promptly opposite direction) with arrow S, keep object 50 constant simultaneously with the relative position of spray gun.
Thereafter, shown in Fig. 4 (f) and 4 (g), when with opposite directions, when moving back and forth object 50 and spray gun with the method for synchronization, when finishing the first half round trips and the second half round trips at every turn, object 50 is with the predetermined distance that is shifted successively of direction shown in the arrow S, and continues the layer application of coating material.Shown in Fig. 4 (h), when moving back and forth object 50, finish application fully by spray pattern 31.
By in opposite directions as mentioned above, carry out application when moving back and forth object 50 and spray gun with the method for synchronization, can reduce reciprocal starting position of object 50 and the distance between the completing place.This has further reduced object 50 in the required space of vibration-direction application.
In the present embodiment, the direction of displacement of object 50 and spray gun 30 is opposite with the direction shown in the arrow S; Yet direction is not limited to this, as long as can reduce the required space of application.
In the present embodiment, when from the center of the spray pattern 31 of spray gun 30 spraying basically at object 50 with in the middle of direction shown in the arrow S vertical the time, object 50 and spray gun 30 are shifted; Yet be not limited to this opportunity of displacement.
In the present embodiment, shown in Fig. 3 (c), the operation of controller control object conveyer and spray gun conveyer makes object 50 and spray gun 30 displacements once; Yet the number of times of displacement is not limited to once, and this operation can be so that more than 30 displacement of object 50 and spray gun.
In addition, in the present embodiment, the operation of controller control object 50 makes object 50 when finishing each half round trip of described object 50 as shown in Figure 3, successively with the displacement of direction shown in arrow S preset distance.Yet, can also control and make object 50 with particular constant speed, with direction shown in arrow S displacement, move back and forth object 50 simultaneously.
In the film formation device 1 of present embodiment, particle diameter, concentration and speed by control atomization particle from the spray pattern of the coating material of spray gun 30 sprayings, and the relative displacement of spray gun 30 and object 50, can effectively form and film, it has substantially the same quality with the film that forms under the application condition of actual application step.
The method of control particle diameter, concentration and speed of atomization particle from the spray pattern of the coating material of spray gun 30 sprayings below is described.Atomizing particle size is the average grain diameter the coating material atomization particle group who measures near the site of object 50, and described coating material is with spray gun 30 atomizings.Particle diameter can be used measurements such as laser diffraction granularity analyzer.Atomization particle concentration is long-pending by the overall particle of unit are spray pattern.As the method for simplifying, it is the average atomizing particle concentration that atomization particle concentration can be used as, and it calculates divided by the spray pattern area with the coating material flow velocity.First-class by spray pattern is sprayed onto plate, can obtain the spray pattern area easily.Atomization particle speed is when atomization particle arrives the site of object 50, the averaged particles speed of population in object 50 directions.Atomization particle speed can be with measurements such as laser Doppler velocimeters for example.
When using revolution bell atomization spraying device as spray gun 30, clock cup diameter, the rotating speed of clock and the flow velocity of coating material etc. by suitable selection revolution bell atomization spraying device, can easily set particle diameter, make particle diameter basically with actual application operation in identical.For example, can be by changing the rotating air pressure of clock of revolution bell atomization spraying device 30, the rotating speed of control clock.Can be by changing the flow velocity of coating material feedway, the flow velocity of control coating material.Usually, the revolution bell atomization spraying device that is used for actual application operation has the clock cup diameter of about 60mm φ to 70mm φ, and its speed of gyration is 20000-30000rpm, and flow velocity is 200 to 300 cc/min; Yet, when using little clock cup in the present embodiment, can under the speed of gyration of the flow velocity that reaches about 20 to 30 cc/min less and about 10000rpm, obtain to operate identical particle diameter with actual application basically.
When using air atomization coating equipment as spray gun 30, the flow velocity by suitably selecting atomization air flow speed, coating material etc. can be set particle diameter easily, thus basically with actual application operation in identical.Can pass through the volume of minimizing discharge air etc., control atomization air flow speed.
By spray pattern,, can easily calculate atomization particle concentration based on the flow velocity of coating material with respect to the spray pattern area that forms on the object 50 from spray gun 30 sprayings.Therefore, by control coating material flow velocity, can obtain easily basically with actual application operation in identical atomization particle concentration.For example, when the width of application pattern in the practical operation be 30 centimetres, when flow velocity is 200 cc/min, if the width of application pattern is set at 10cm in the present embodiment, the pattern area ratio of present embodiment/practical operation is 1/9.Therefore, be 22.2 cc/min (200 * (1/9)) by setting flow velocity, can obtain identical atomization particle concentration.Please note angle and its flow velocity of the shaping air that sends from revolution bell atomization spraying device by control, can change the width of spray pattern easily.
When using revolution bell atomization spraying device as spray gun 30, the shaping air velocity by suitably selecting revolution bell atomization spraying device, application distance etc., can make easily atomization particle speed basically with actual application operation in identical.Please note when using air atomization coating equipment,, can easily make atomization particle speed identical with actual application operation basically by suitably selecting atomization air flow speed and application distance as spray gun 30.
As mentioned above, flow velocity, the application distance of the coating material by control spray gun 30 etc., the atomization condition (particle diameter of atomization particle, concentration and speed) that can make coating material basically with actual application operation on object 50 coating material of deposition identical.
Below the method for spray gun 30 and object 50 relative motions is controlled in explanation.Particularly, the forming process of filming during definite actual application is operated based on the relation between the variation of film formation time and gained coating thickness, the relative motion of control spray gun 30 and object 50.
Below with reference to Fig. 5 and Fig. 6 the forming process of filming in the actual application operation is described.Fig. 5 is a key diagram, has showed in the actual application step path of spray gun 100 on little area portions 103 of object 101.Fig. 6 is a key diagram, illustration the relation between elapsed time (elapse time) and the coating thickness in little area portions 103.
Among Fig. 5, spray gun 100 is connected to and vertically moves back and forth element 102, and coating material is sprayed on the object of wanting application.In this embodiment, spray gun 100 by seven times, makes spray pattern be coated seven times on little area portions 103 of application object 101, and formation is filmed.
With little area portions 103 pass through length L 1 divided by reciprocating motion speed, can calculate along with spray gun 100 by little area portions 103 once, the sedimentation time of atomization particle (floattime) is (TF).The spray gun 100 also part beyond little area portions 103 moves back and forth.Revolution bell atomization spraying device 100 is by the duration of part beyond little area portions 103, promptly finish in little area portions 103 behind the application path interval T I, can calculate with formula TI=(move back and forth the little area portions 103 of width L2-pass through the distance L 1)/speed of moving back and forth to follow-up application path.Therefore, can with representative film formation time trunnion axis and represent the vertical axis acquisition of the coating thickness forming process of filming as shown in Figure 6.Measurements such as the thickness of filming can electricity consumption magnetic coating thickness meter, laser instrument detector for displacement measuring.Among Fig. 6, schematically show film thickness, but in the actual application operation, film deposits based on logarithmic function with straight line.
Controller is regulated object conveyer 41, so that produce the coated film forming process, it is determined by the relation between the variation of coated film formation time and the coated film thickness that obtains.In other words, the control of object conveyer 41 depends on object 50 passes through from the coating material spray pattern of spray gun 30 spraying duration, number of times that object 50 passes through and finishes an application and transmit and begin the interval T I of application subsequently between transmitting, and makes these consistent with the forming process of filming during actual application is operated.Please note control object conveyer 41,, make that during interval T I, the atomization particle of coating material is not deposited on the object 50 by object 50 being statically placed in or the zone of mobile object 50 between the application that does not deposit the coating material atomization particle.
This makes and to be deposited on the object 50 substantially the same (behavior of film deposition) and actual application from coating material atomization particle of spray gun 30 sprayings.
When actual application operation is undertaken by 2-stage application, i.e. coated film forming process as shown in Figure 9, object is crossed application after carrying out application in advance, the sudden strain of a muscle break time of not carrying out application (flash time) of finishing application and providing between the beginning application in second step in first step.When using twice application to carry out application in the actual application operation with a sudden strain of a muscle break time, so that meet the opportunity of dodging the break time, can make from the coating material atomization particle deposition (deposition behavior) of revolution bell atomization spraying device 30 sprayings identical with actual application operation basically on object 50 by suitably setting interval T I.
In with coating material application object three times or multistage application more frequently, make it meet a plurality of the sudden strains of a muscle break time by suitably setting interval T 1, can make deposition properties basically with identical during actual application is operated.
As mentioned above, the film formation device 1 of present embodiment can be by air themperature and the humidity in 22 between the control application, control is from particle diameter, concentration and the speed of the coating material atomization particle of spray gun 30 sprayings, and control is deposited on the atomization particle deposition behavior on the object 50, make they basically with actual application operation in identical, reproduce the application condition in the actual application operation.Therefore, can form the substantially the same coated film that obtains in final mass and the actual application operation.

Claims (3)

1. film formation device, it comprises:
The object conveyer that is used for mobile object;
The spray gun conveyer that is used for the spray gun of mobile atomized spray painting material;
Be used to control the controller of object conveyer, spray gun and the operation of spray gun conveyer,
Wherein said controller in the gun spraying coating material with the specific direction mobile object, and object is moved back and forth, make and can carry out the part layer application successively, and
In the application object, described controller makes object and spray gun displacement, keeps object and spray gun the relative position of each other constant simultaneously,
The direction of wherein said object when being shifted with spray gun is opposite with the moving direction of described object when being subjected to the part layer application.
2. film formation device according to claim 1 in the time of wherein in the middle of the spraying center from spray gun emission is located substantially on object vertical on direction of displacement, carries out described displacement to described object and spray gun.
3. film formation device according to claim 1, wherein said controller makes described spray gun to move back and forth in the opposite direction with the reciprocating side of described object with the method for synchronization.
CN2006800104235A 2005-03-29 2006-03-14 Film forming equipment Expired - Fee Related CN101151102B (en)

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KR101284866B1 (en) * 2011-03-11 2013-07-09 삼성중공업 주식회사 Coating method of coating apparatus
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KR101653465B1 (en) * 2014-12-12 2016-09-01 (주)탑피온 Apparatus for Coating PTFE Automatically
JP7229708B2 (en) * 2018-09-21 2023-02-28 関西ペイント株式会社 coating equipment
CN117507436B (en) * 2023-12-25 2024-07-16 创隆实业(深圳)有限公司 Film forming device and process adopting radio frequency auxiliary film forming and high-frequency pulse bias

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KR100918835B1 (en) 2009-09-25
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EP1866100A1 (en) 2007-12-19
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JP2008534242A (en) 2008-08-28
CN101151102A (en) 2008-03-26

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