WO2016194799A1 - 補修用塗料の調色装置及び調色方法 - Google Patents
補修用塗料の調色装置及び調色方法 Download PDFInfo
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- WO2016194799A1 WO2016194799A1 PCT/JP2016/065686 JP2016065686W WO2016194799A1 WO 2016194799 A1 WO2016194799 A1 WO 2016194799A1 JP 2016065686 W JP2016065686 W JP 2016065686W WO 2016194799 A1 WO2016194799 A1 WO 2016194799A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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- B—PERFORMING OPERATIONS; TRANSPORTING
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Definitions
- the present invention relates to a toning device and a toning method for a repair paint, and more particularly to a toning device and a toning method suitable for toning a repair paint performed in a paint repair work of an automobile.
- Automakers specify color codes for each vehicle and provide information on the paints and values of paints used for painting. For each specified color code, the paint manufacturer creates a paint for repair using the paint manufactured and sold by each paint manufacturer. Information) (master color data).
- the currently provided toning support system stores a large number of master color data in a database, and the color measurement data (for example, L * a * b * value) of the repaired vehicle measured by the colorimeter. Search and display the one having the smallest color difference between them (see, for example, paragraph [0038] of Patent Document 1).
- paint manufacturers create a number of variations with slightly different colors for a single color code and register these variations in the database as those that can be painted on repair vehicles. The candidate that minimizes the color difference is selected as much as possible.
- the paint that matches the paint target part of the repair vehicle is searched and displayed. The problem of not always being solved. For this reason, it is not possible to sufficiently support the operator's toning work, and at the painting site, depending on the experience and intuition, the paint to be added and the amount of toning should be selected from among many paints. There were many times I had to ask for.
- the painting state changes depending on the distance between the spray gun used for painting and the part to be painted, the painting method such as the speed to move the spray gun, the painting equipment to be used, the painting skill of the worker and the habit, etc. Even if exactly the same paint is used, a difference occurs in the color and tone after painting. It is virtually impossible to create a repair paint and database that can handle all of these.
- the color sample book used at the painting site is affixed with a paint plate created by the paint manufacturer based on the color code blended paint and blended values. Therefore, it is not always possible to reproduce the same color and tone expressed in the color sample book.
- the colorimeters currently on sale measure the reflected light by irradiating the coating target part with light at a certain brightness.
- the reflectance or absorption rate of light varies depending on the object color
- the original color of the object to be painted cannot be accurately measured if the luminance remains constant.
- paints for automobiles often contain bright pigments (brilliant materials) such as aluminum flakes (metallic paint) and pearl pigments (pearl paint, mica paint), and these additives depend on the difference in refractive index. Since multiple reflection gloss is produced, if the color is always measured with a constant luminance, the original color of the coating target portion cannot be measured with high accuracy.
- the search and display by the conventional color matching support system cannot sufficiently support the operator's color matching work, and a lot of workers rely on experience and intuition at the painting site. There were many scenes where it was necessary to determine the amount of paint to be added and the amount of toning from among the paints. In addition, because the painting method and painting environment differ depending on the painting site and worker, each worker must seek the paint and toning amount to be added from a large number of paints based on experience and intuition. There were many scenes that had to be done. In view of these conventional drawbacks, the present invention is for repairing that can sufficiently support the toning work of a repairing paint, which has been conventionally performed based on the experience and intuition of an operator in an automobile repair shop. An object of the present invention is to provide a toning apparatus and a toning method for a paint.
- the toning device for a paint for repair stores a blended paint and a blended value for each color code, stores characteristic information corresponding to each coordinate axis of a color system constituting a color space for each blended paint, And based on the storage means which memorize
- Toning amount calculation means for calculating a toning amount of the toning candidate by multiplying the basic amount of the color candidate by the error rate calculated by the error rate calculation means. .
- the combination paint having the characteristic information acting in the direction of reducing the error that is, the candidate for the combination paint that can be brought close to the paint color of the object to be painted by additional toning is stored in the memory.
- the blending paint registered by the means is searched, and the toning amount to be added can be specifically calculated for the blending paint that is the toning candidate.
- the toning candidate search means does not search for a toning candidate from among the blended paints included in the repair paint painted on the coating plate.
- toning candidates may be searched for a blended paint having another color code that is permitted to be applied to the portion to be painted. This makes it possible to search for toning candidates beyond the range of the blended paint applied to the coating plate.
- the color-matching device of the paint for repair optionally uses color spectrophotometer capable of changing luminance of the colorimetric data received by the data receiving means as a colorimetric object. It is good also as what is acquired by changing a brightness
- a colorimetric object for example, a repair vehicle, paint plate, color sample book
- the color-matching method of the coating material for repair includes the input of the color measurement data of the coating target part and the color measurement data of the coating plate coated with the repair coating prepared in a desired amount based on the color code of the coating target part.
- a data receiving step an error calculating step of calculating an error between the color measurement data of the coating plate and the color measurement data of the coating target portion for each coordinate axis of the color system constituting the color space, and for each color code Characteristic information that acts in a direction to reduce the error for each coordinate axis with reference to the storage unit that stores the compounded paint and the compounding value and stores characteristic information corresponding to each coordinate axis for each of the compounded paints.
- the toning candidate search step for searching for the blended paint having as a toning candidate, the amount receiving step for receiving the amount of the repair paint used for painting the portion to be painted, and the blending value stored in the storage unit And the minute
- a basic amount calculating step for calculating a basic amount of the toning candidate corresponding to the amount, and a storage unit that stores a predetermined value set as a reference value for each interval arbitrarily provided on each coordinate axis. Then, a reference value corresponding to the color measurement data of the coating target part is read for each coordinate axis, and the error for each coordinate axis calculated by the error calculation step is divided by the read reference value,
- An error rate calculation step for calculating an error rate for each coordinate axis, and a basic amount of the toning candidate calculated by the basic amount calculation step and the error rate calculated by the error rate calculation step for each coordinate axis.
- a toning amount calculation step of calculating a toning amount of the toning candidate by multiplication For each coordinate axis, a blended paint having characteristic information that acts in a direction to reduce the error, i.e., a blended paint that can be brought close to the paint color of the painting target portion by additional toning is used as the toning candidate. It is possible to search from the blended paints stored in the storage unit and specifically calculate the toning amount to be added for the blended paint that is the toning candidate.
- the toning method of the repair paint according to the present invention may optionally accept the input of the remaining amount of the repair paint consumed by painting on the coating plate as the quantity. good.
- the basic amount calculation step calculates the basic amount of the blended paint contained in the remaining repair paint, so that it is possible to perform color matching taking into consideration the paint consumed by the creation of the coating plate.
- the toning candidate search step does not search for a toning candidate from among the blended paints included in the repair paint painted on the coating plate.
- toning candidates may be searched for a blended paint having another color code that is permitted to be applied to the portion to be painted. This makes it possible to search for toning candidates beyond the range of the blended paint applied to the coating plate.
- the color-matching method of the paint for repair optionally uses color spectrophotometer capable of changing luminance of the colorimetric data received by the data receiving step, and is a colorimetric object. It is good also as what is acquired by changing a brightness
- the original color of the colorimetric object eg, repair vehicle, paint plate, color sample book
- the paint for repair that matches the paint target part eg, the paint target part of the repair vehicle
- a paint to be added for toning can be retrieved from a large number of paints, and the toning amount can be specifically calculated. It is possible to sufficiently support the toning work of the repair paint that the worker has performed based on experience and intuition.
- the color system constituting the color space is the L * a * b * color system, but the present invention can also be applied to other color systems such as XYZ and RGB. is there.
- FIG. 1 is a configuration diagram of a toning device 1 according to an embodiment of the present invention.
- the toning apparatus 1 includes a computer main body 2 having a storage unit, a calculation unit, a control unit, and the like, and a full color monitor 3 as a display unit for displaying various data and calculation results.
- a computer main body 2 and the full-color monitor 3 a commercially available personal computer can be used.
- the toning device and the toning method for the repair paint according to the present invention can also be realized integrally with the colorimeter by being incorporated into a colorimeter having a memory, calculation, control, input / output function, etc. is there.
- a toning master data sheet (Table 1), a paint master data sheet (Table 2), and a reference value table (Table 3) are stored in the storage unit as the wrinkle storage means.
- the blended paint is managed by a four-digit numeric paint code, but this is only an example.
- the color tone master data sheet (Table 1) contains information on color codes, paint codes of blended paints, blended values of blended paints, and availability of blended paints. These pieces of information can be arbitrarily added / changed / deleted.
- the color code, paint code, and blending value shown in Table 1 are information registered with reference to master color data provided by the paint manufacturer.
- the toning apparatus 1 is scheduled to be implemented in each automobile repair shop. Therefore, it is registered mainly on information on automobiles that are likely to be brought in. When an unregistered vehicle type is brought in, registration information can be added as appropriate using master color data provided by the paint manufacturer.
- the bag storage unit stores a plurality of blended paints and blended values for each blended paint for each color code.
- the blended value is, so to speak, the blending ratio of each blended paint. For example, when the amount of the color code “B589P-1” is 10,000 (g), the paint code “0030” 642 g, the paint code “0036” 986 g, the paint Information that is created by blending code “0083” 1646 g, paint code “0095” 530 g, paint code “0250” 4176 g, paint code “4006” 658 g, paint code “4336” 614 g, paint code “4342” 748 g Is remembered.
- a paint manufacturer creates a plurality of variations (for example, B589P-1 to B589P-3) in which a color is slightly changed for a certain color code (for example, B589P).
- a certain color code for example, B589P
- many other color codes for example, B568M and B594P
- APPLY described in the column of availability of means that the paint can be used at each repair site. Because of the discontinuation of production, inventory management, and purchase costs, paints that can be used at each repair site such as an auto repair shop may be restricted, so it is possible to set whether to use each paint. ing.
- paint master data sheet (Table 2)
- Paint code, availability, paint manufacturer, characteristic information, color sample data of color sample book, and information on remarks are registered. These pieces of information can be arbitrarily added / changed / deleted.
- arbitrary information such as a common name of the blended paint can be registered.
- the blended paint is managed by the paint code, but it is only necessary to be able to identify each blended paint, for example, management using the common name of the blended paint described in the remarks column. -You may make it search.
- the storage unit stores characteristic information corresponding to each coordinate axis of the color system constituting the color space for each blended paint.
- the color system constituting the color space is the L * a * b * color system
- its coordinate axes are the three axes of L * axis, a * axis, and b * axis. That is, the storage unit stores information regarding the characteristics of the blended paint corresponding to the L * axis, the a * axis, and the b * axis for each blended paint managed by the paint code.
- L * a * b * color system lightness is represented by L * values
- chromaticity is represented by a * values and b * values.
- color data (L * value, a) obtained by measuring the color sample book of each paint code (for example, “Auto Paint Colors” issued by the Japan Paint Industry) * Value, b * value) is stored.
- the color data shown in Table 2 is measured by the inventor.
- each coordinate axis is set at an arbitrary interval in the range of [0 to +100].
- the reference value table for the a * value and b * value is set to [ ⁇ 100] accordingly. It may be set in the range of +100.
- the L * a * b * color system is generally a color solid (color space) that evenly expresses the distances between colors that appear to be the same color different psychologically. There is a property that the smaller the saturation is, the smaller the saturation is and the larger the saturation is. In addition, human eyes have different properties of intensity (luminosity) for each wavelength, such as yellow and green light can be felt bright, but red and blue light can be felt dark. .
- the numerical error ( ⁇ L * , ⁇ a * , ⁇ b * ) calculated by the error calculation means (process), which will be described later, is the difference in color between the object to be painted and the coated plate as seen from the human eye. It is not necessarily what you express. In other words, in areas where human color-difference discrimination ability is inferior, even if the numerical error is large, it may be sufficiently paintable for toning, and conversely, even if the numerical error is small, In some cases, the color difference is large from the viewpoint of the eye, and finer toning is required.
- the concept of “reference value” is introduced as an evaluation of numerical “error”, and the difference in color between the painting target portion 10 and the coated plate 20 of the repair vehicle is evaluated as the “error rate”. It is supposed to be. For example, in an area where it is desired to clearly represent the difference in color, the reference value can be set small and the error rate can be calculated large.
- FIG. 2 is a flowchart showing the processing steps of the toning apparatus 1 according to one embodiment of the present invention.
- the toning apparatus 1 includes a data receiving unit, a data converting unit, an error calculating unit, a color code receiving unit, a toning candidate search unit, a quantity receiving unit, a basic amount calculating unit, an error rate, in addition to a storage unit as a storing unit.
- a calculation means, a toning necessity determination means, a toning amount calculation means, and an output means are provided, and the processes of these means can be executed.
- each processing step (S1 to S11) will be described with reference to FIG.
- the data reception means of the color matching apparatus 1 receives the color measurement data of the painting target portion 10 of the repair vehicle and the color measurement data of the coating plate 20 (S1).
- the coating plate 20 is created by painting a paint for repair created based on the blended paint and blended value of the color code of the painting target portion 10.
- the color measurement data is acquired by the operator measuring the color of the painting target portion 10 and the coating plate 20 of the repair vehicle using the spectrocolorimeter 4.
- ⁇ Data conversion step> When the colorimetric data input by the data receiving step by the data conversion means of the toning device 1 is the same as the format of the color system (L * a * b * color system) In this case, the format is maintained, and if different, the format of the colorimetric data is converted to the format of the color system (L * a * b * color system) (S2). For example, when the colorimetric data measured by the colorimeter is in the RGB display system format (R [%], G [%], B [%]), a conventionally known conversion formula is used to calculate L * A * b * Convert to color system format.
- the a * value and the b * value are converted into a range of [ ⁇ 100 to +100] by this data conversion means. Note that the present invention can also be applied to the case of conversion to the generally used range of [ ⁇ 60 to +60].
- the data conversion process is an optional process in the sense that conversion may not be necessary. However, since it can correspond to various colorimetric data, it is preferable to include a data conversion step.
- the color code receiving means of the color matching apparatus 1 receives the input of the color code of the painting target portion 10 of the repaired vehicle (S4).
- the color code adopted when creating the coating plate 20 is input.
- FIG. 3 shows a condition input screen according to an embodiment of the present invention, which is displayed on the monitor 3.
- the toning master data (Table 1) and the paint master data (Table 2) stored in the storage unit are referred to and correspond to the color code.
- a plurality of paint codes, blend values, paint manufacturers, characteristic information, and color sample data of the color sample book are displayed in the blend list column. Thereby, the operator can confirm the information regarding the selected color code.
- the flow shown in FIG. 2 is only one embodiment of the present invention, and the color code reception step (S4) may be executed before the error calculation step (S3).
- ⁇ Toning candidate search step> With the toning candidate searching means of the toning device 1, the characteristic information stored in the storage unit as the storage means is referred to and the characteristic information that acts in the direction of reducing the error is provided for each coordinate axis. A blended paint (paint code) is retrieved as a toning candidate (S5).
- a combination paint having characteristic information (“dark”) that decreases the value of L * 2 is searched, and an error on the L * axis ( ⁇ L *) ) Is a negative value ( ⁇ 0), a combination paint having characteristic information (“bright”) that increases the value of L * 2 is searched, and the error ( ⁇ a * ) on the a * axis is positive.
- a blended paint having characteristic information (“green”) that decreases the value of a * 2 is searched, and the error ( ⁇ a * ) on the a * axis is a negative value ( ⁇ 0 )
- a combination paint having characteristic information (“red”) for increasing the value of a * 2 is searched, and an error ( ⁇ b * ) on the b * axis is a positive value (> 0) the b * Find the formulated coating having characteristics information to reduce the value ( "blue"), when b * on the axis error ([Delta] b *) is a negative value ( ⁇ 0) increases the value of b * 2
- the combination paint having the characteristic information (“yellow”) to be retrieved is searched.
- the toning apparatus 1 stores a plurality of blended paints and blended values for each blended paint for each color code, and corresponds to each coordinate axis of the color system constituting the color space.
- the storage means for storing the characteristic information for each of the blended paints, the color measurement data of the painting target portion 10, the blending paint and the blending value of the color code of the painting target portion 10 are applied with the repair paint prepared in a desired amount.
- a color space is configured by having toning candidate search means for searching for a blended paint having characteristic information acting in a direction to reduce the error as a toning candidate for each coordinate axis with reference to the memorizing characteristic information You For each coordinate axis of the color system, a paint composition having characteristic information that acts in a direction to reduce an error between the color measurement data of the coating plate 20 and the color measurement data of the coating target portion 10, that is, the object to be coated by additional toning. It is possible to search for toning candidates that can be close to the paint color of the unit 10.
- the toning candidates are preferentially searched from the blended paint applied to the coating plate 20, that is, the blended paint included in the paint corresponding to the color code selected by the color code receiving means (process).
- a blending paint having characteristic information that acts in a direction to reduce errors is not found and a toning candidate is not searched, a blending paint of another color code that is allowed to be painted on the painting target portion 10
- even paints that are not included in the repair paint prepared when creating the coating plate can be searched for blended paints that are allowed to be applied by paint manufacturers.
- the toning candidate search means does not search for the toning candidates preferentially from the blended paints applied to the coating plate 20, but from the beginning, all the blended paints that are allowed to be applied by the paint manufacturer. You may make it search the toning candidate as object.
- the tone color master data sheet (Table 1) stores information on availability of use for each paint code.
- the toning candidate search means (process) can search only the blended paint registered as available (registered as “APPLY”).
- APPLY blended paint registered as available
- the quantity accepting means of the color matching apparatus 1 receives an input of the quantity of the repair paint used for painting the painting target part 10 (S6).
- the “quantity” input field is provided as the quantity receiving means, and the quantity of the repair paint used for painting the painting target portion 10 can be entered.
- the amount of the paint for repair is not the amount to be prepared in the future, but the amount of the paint for repair consumed by creating the coating plate 20 may be measured and the remaining amount may be input. Since the basic amount of the blended paint contained in the remaining repair paint is determined by the basic quantity calculation means described later, it is possible to perform toning in consideration of the paint reduced by the creation of the coating plate 20 it can.
- the flow shown in FIG. 2 is only one embodiment of the present invention, and the quantity receiving step (S6) is positioned before and after any step as long as it is before the basic quantity calculating step (S7). May be.
- the basic amount calculation means of the toning device 1 refers to the information on the blending value stored in the toning master data sheet (Table 1) and corresponds to the amount of the repair paint received.
- the basic amount of toning candidates to be calculated is calculated (S7).
- the error rate calculation means of the toning device 1 uses the color measurement data (L * 2, a * 2, b * 2) of the coating plate 20 or the color measurement data (L of the painting target portion 10 of the repair vehicle).
- the reference values corresponding to * 1, a * 1, b * 1) are called from the reference value table (Table 3) for each coordinate axis, and the error for each coordinate axis calculated by the error calculation means is read. By dividing by the reference value, an error rate is calculated for each coordinate axis (S8).
- the reference value table (Table 3) is set within the range of [0 to +100]
- the value within the range of [ ⁇ 100 to +100] is used.
- a certain a * value and b * value are converted into absolute values, and then a reference value is called.
- the reference value table for the a * value and the b * value may be set in a range of [ ⁇ 100 to +100].
- the operator may make a visual decision and manually exclude the calculation target, or these may be used in combination.
- the calculation is simplified by eliminating the toning amount calculation target, eliminating unnecessary toning and repairing paint. Can be created in a short time.
- the toning amount may be calculated for all toning candidates unconditionally. In this sense, the toning necessity determination step is an optional step for the present invention.
- the toning amount calculation means of the toning apparatus 1 has a basic amount of toning candidates calculated by the basic amount calculation means and an error rate calculated by the error rate calculation means for each coordinate axis. Is multiplied to calculate the toning amount of the paint as a toning candidate (S10).
- the toning amount having the largest toning amount is set as the toning amount of the toning candidate. .
- the toning candidate corresponding to the quantity is referred to with reference to the quantity receiving means for receiving the quantity of the repair paint used for painting the painting target portion 10 and the storage value stored in the storage means.
- a basic amount calculation means for calculating the basic amount of the color, and a reference value corresponding to the colorimetric data of the coating plate 20 or the coating target portion 10 is read from the storage means for each coordinate axis, and the error for each coordinate axis calculated by the error calculation means is calculated.
- An error rate calculation means for calculating an error rate for each coordinate axis by dividing by the read reference value; and a basic amount and error rate of the toning candidates calculated by the basic amount calculation means for each coordinate axis
- the toning color searched by the toning candidate search means by having the toning amount calculation means for calculating the toning amount of the toning candidate by multiplying the error rate calculated by the calculating means
- the toning amount to be added for toning can be calculated.
- the present invention uses a given master color data, but does not output the data itself, but specifically calculates a toning amount to be added by reflecting an error rate based on the colorimetric data.
- the toning amount to be added is specifically calculated, it is possible to sufficiently support the toning work that has been performed based on the experience and intuition of the operator.
- the quantity receiving step as a quantity of the paint for repairing, a repair that has been created in a desired quantity based on the blended paint and blended value of the color code of the painting target portion 10 in order to create the coated plate 20 It is also possible to receive an input of the remaining amount of paint for use, whereby toning can be performed in consideration of the amount of paint reduced by the creation of the coating plate. That is, according to the present invention, even if the color difference between the repair paint prepared according to the master color data and the paint target portion 10 is large and cannot be applied without toning, the repair expended to create the coated plate 20.
- the amount of toning that should be added to the paint for paint can be calculated specifically, so it is possible to achieve a toning without waste without having to recreate it from scratch and discarding the paint for repair. is there.
- the output means of the toning apparatus 1 displays information such as the toning candidate and the calculation result such as the toning amount of the toning candidate on the monitor 3 (S11). Further, the output means refers to the color measurement data (Table 2) of the color sample book of the blend paint stored in the storage means, and the color sample data of the color sample book corresponding to the color paint to be the color matching candidate is also stored. They can also be output together. As a result, the operator can finally determine whether toning is possible based on the toning candidates while referring to the colorimetric data on the color sample book of the paint.
- L * represents lightness
- + a * represents the red direction
- -a * represents the green direction
- + b * represents the yellow direction
- -b * represents the blue direction.
- the operator After toning the paint for repairing based on the information displayed on the monitor 3, the operator creates a coated plate by the same painting method as the actual production, compares the color with the coating target portion 10, and paints it. Visually determine whether a suitable repair paint has been created. If it is determined that further toning is necessary, the coated plate created at this time can be measured, and the present invention can be applied again using the measured color data as input data. As described above, according to the present invention, since the repair paint once prepared can be obtained by repeatedly performing the color matching without discarding the repair paint, there is no waste. It is possible to achieve toning.
- the car repair shop uses the given master color data.
- search for blend paints (toning candidates) to be added for toning, and the toning amount of the toning candidates Can be calculated. That is, according to the present invention, the coating plate 20 is prepared by a method similar to that in the case where a repair coating is prepared by blending a plurality of blended paints according to the master color data and is applied to the coating target portion 10, that is, by the same method as the actual coating.
- the coating object portion 10 and the coating plate 20 As a result of trial coating and color-coating the coating object portion 10 and the coating plate 20, it can be applied when the coating object portion 10 cannot be applied due to a large color difference.
- the coating method such as the distance between the spray gun and the portion to be painted, the speed at which the spray gun is moved, the painting equipment to be used, the painting environment, the operator's painting skills and wrinkles are determined by the coating plate 20. It is reflected in the painting (performance).
- this coating plate 20 is colorimetrically measured, coating plate data reflecting differences in the painting method and coating environment at each repair site such as an automobile repair shop and each worker is obtained.
- the toning amount By calculating the toning amount based on the error and error rate between the data and the colorimetric data of the object 10 to be painted, it is suitable for each repair site such as an automobile repair shop and the painting method and environment of each worker. A toning amount can be obtained.
- Example 1 after confirming that the color code of the coating target portion 10 is B589P, the operator selects B589P-2 as the paint most likely to be applied, and a plurality of blended paints according to the master color data.
- a paint for repair was prepared by blending the paint, trial coating was applied to the coating plate, and the color of the coating target part and the coating plate was compared. When the color difference was large, the coating target part could not be applied.
- One application example in the case of applying is shown. Therefore, when applying the present invention, there are already repair paints and coated plates prepared using the repair paints.
- the coating method such as the distance between the spray gun and the part to be painted, the speed at which the spray gun is moved, the painting equipment used, the painting environment, and the operator's painting skills and wrinkles are reflected in the coating plate. Has been.
- the data reception means of the color matching apparatus 1 inputs the color measurement data (R1, G1, B1) of the painting target portion of the repair vehicle and the color measurement data (R2, G2, B2) of the coating plate. Receive (S1).
- the color code receiving means receives the input of the color code (S4).
- Toning master data sheet (Table 1) and paint master data sheet (Table 2) are referred to, a plurality of blended paints (paint codes) corresponding to the color code, blended values, paint manufacturers, characteristic information, color sample book Colorimetric data is displayed in the formulation list field (FIG. 3). Since the paint code “0095” is a clear paint and is colorless and transparent, the L * a * b * value is blank.
- ⁇ Toning candidate search step> The characteristic information of the paint master data sheet (Table 2) stored in the storage means is referred to by the toning candidate search means of the toning device 1 and acts in a direction to reduce errors for each coordinate axis.
- the blended paint (paint code) having the characteristic information to be searched is retrieved as a toning candidate (S5).
- the toning candidates are preferentially searched from the blended paint applied to the coating plate, that is, the blended paint (paint code) included in the paint corresponding to the input color code (B589P-2) (see Table 5). ).
- the quantity receiving means of the color matching apparatus 1 receives an input of the quantity of the paint for repair (S6).
- the quantity of paint used for repairing the repair vehicle is entered.
- the amount the remaining amount of the repair paint consumed when creating the coated plate may be entered.
- the repair paint after creating the coated plate was weighed to be 95.0 (g). Therefore, “95.0 (g)” is input as the remaining amount.
- the basic amount calculation means of the toning device 1 corresponds to the quantity “95.0 (g)” with reference to the information on the blend value stored in the toning master data sheet (Table 1).
- the basic amount of toning candidates to be calculated is calculated (S7).
- the error rate calculation means of the toning apparatus 1 uses a reference value (60,) corresponding to the color measurement data (56.982, 22.693, -30.111) of the painting target portion 10 of the repair vehicle. 30 and 40) for each coordinate axis is called from the reference value table (Table 3), and the error for each coordinate axis calculated by the error calculation means is divided by the read reference value for each coordinate axis.
- the error rate is calculated (S8, Table 4).
- the reference value table (Table 3) is set in the range of [0 to +100]
- the reference value (40) is called.
- the toning necessity determining unit of the toning apparatus 1 determines whether the error rate is equal to or less than a predetermined value for each coordinate axis (S9). In this example, none was excluded from the calculation target. Note that the “Re” point in Table 4 indicates that it is determined that toning is necessary.
- the toning amount calculation means of the toning device 1 uses, for each coordinate axis, a basic amount of toning candidates calculated by the basic amount calculation means, and an error rate calculated by the error rate calculation means. Is multiplied to calculate the toning amount of the paint as a toning candidate (S10).
- the rule (d) having the largest toning amount is selected. This is the toning amount of the color candidate.
- Table 5 The following solution is obtained by the above calculation (Table 5). If the blended paint retrieved as a toning candidate is not included in the color code selected when creating the coating plate, a paint that is not included in the remaining repair paint is formulated. However, there is usually no problem because the amount of the preparation is very small. “4006”: 0.02 [g] added “4336”: 0.26 [g] added “4342”: 0.38 [g] added
- the output means of the toning apparatus 1 calculates the toning candidate, the toning amount of the toning candidate, and the color measurement data (L of the color sample book corresponding to the blend paint that is the toning candidate) Information such as * a * b * value) is displayed on the monitor 3 (S11).
- Example 1 is one application example of the present invention in the case where a repair paint is prepared by blending a plurality of blended paints according to the master color data (B589P-2) of the part to be painted, and trial coating is applied to the coated plate. Is shown. In other words, with the expectation that a paint that can be applied to the paint target area without any toning will be created if blended according to the master color data, a paint plate is created based on the paint composition and value of the color code of the paint target area. However, as a result of colorimetry, an application example of the present invention in the case where the color difference is still large and the paint cannot be applied without toning is shown.
- the paint plate affixed to the ready-made color sample book is regarded as a paint plate created by the operator according to the master color data, and the color of the color sample book is measured. Data can also be input as paint plate data.
- the data receiving means of the toning device 1 receives the input of the color measurement data of the coating plate pasted on the color sample book as the coating plate data (S1), and about the coating plate data and the color measurement data of the coating target portion,
- the steps from the data conversion step (S2) to the output step (S11) are executed with the same processing procedure and contents as shown in FIG.
- the basic amount calculation means of the toning device in addition to the basic amount of the toning candidates (No. 7 and 8), the basic amount of the blended paint (No. 1 to 6) other than the toning candidates is also calculated. (See Table 5). Further, according to the toning device 1, the total value of the basic amount of each blended paint and the toning amount of the toning candidates (No. 7 and 8) can be calculated and displayed on the monitor 3. Therefore, the operator must add these values ([0030] 7.17 g, [0036] 6.92 g, [0048] 15.16 g, [0079] 7.77 g, [0095] 3.65 g, [0250] 37.
- the new coated plate is used. If the present invention is applied again using the data obtained by measuring the color as input data, it is possible to create a repair paint more suitable for the portion to be painted.
- the spectrocolorimeter 4 capable of changing the luminance in the toning method and the toning apparatus according to the present invention.
- a spectrocolorimeter that can change the brightness
- the brightness is changed according to the reflectance or absorption rate of the colorimetric object, and the color data with the best sensitivity characteristics of the color sensor is measured. Therefore, it is possible to measure the original color of the colorimetric object with high accuracy.
- By calculating the amount of toning using such measurement data it is possible to accurately create a repair paint suitable for the part to be painted. As a result, mainly in automobile repair shops, based on experience and intuition. The toning work that has been performed can be fully supported.
- a color sensor (EMX Industries, Inc., trade name “Color Max-1000”) manufactured by EMX of the United States can be used. According to the inventors' experiment, it is possible to set the luminance in the range of 0 to about 3400 lux.
- “Color Max-1000” incorporates a high-intensity white LED as a self-luminous source and a Si photodiode (each light receiving element for detecting red light, detecting green light, and detecting blue light) as a light receiving element. The light emitted toward the object from the high-intensity white LED is reflected or transmitted by the coating target part, and is detected as the RGB light intensity by each photodiode.
- FIG. 4 is an image diagram of a display screen of software attached to the color sensor.
- "Color Max-1000” comes with dedicated application software. By installing the software on the computer main body 2, the brightness of “Color Max-1000” can be controlled, or “Color Max-1000” The RGB value measured by -1000 "can be displayed on the monitor 3.
- luminosity luminanosity: brightness, brightness
- R, G, and B color data
- the sensitivity of each light receiving element is optimized, and the original color of the measurement object Can be measured with high accuracy.
- the luminance is lowered and the color data (RGB value) when the sensitivity of each light receiving element is optimized is detected.
- black color has a high absorptance, so the luminance is increased and measured.
- a cylindrical light-shielding attachment 5 is attached to the eyelid spectrocolorimeter 4. By mounting the light-shielding attachment 5, the distance from the light source to the coating target part and the irradiation angle can be adjusted.
- the spectrocolorimeter 4 can be connected to the toning apparatus 1 through a wired connection such as a communication cable or a wireless connection such as Bluetooth (registered trademark) communication, and the colorimetry measured by the spectrocolorimeter 4 is measured. Color data is input to the computer main body 2 by the data receiving means.
- the “Color Max-1000” as the spectrocolorimeter 4 is a substantially cylindrical colorimeter having a diameter of about 30 mm and a length of about 110 mm, and the body weight is as light as about 180 g and is highly portable.
- the measured colorimetric data can be transferred by wireless communication, it is also preferable in the sense that it is easy to measure the color of the repaired portion of the repaired vehicle.
- the present invention can also be applied without being limited to paint manufactured and sold by a specific paint manufacturer.
- some paint manufacturers provide toning support systems equipped with CCS or CCM functions, but the paints to be searched by the system are usually manufactured by the paint manufacturers. Limited to sales.
- the information registered in the toning master data sheet (Table 1) and the paint master data sheet (Table 2) is not limited to that of a single paint manufacturer, but is that of a plurality of paint manufacturers. You can register about. Therefore, it is also possible to search for the optimum color matching candidate from those of other paint manufacturers.
- the present invention is preferably used in the color matching work of a paint for repair performed in a paint repair work of an automobile, but information on the paint composition (paint code) and the composition value (composition ratio) of the paint used for painting.
- paint code paint code
- composition value composition ratio
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Abstract
Description
本発明は、これらの従来の欠点に鑑み、主として、自動車修理工場において、従来、作業者の経験と勘により行われてきた補修用塗料の調色作業を十分に支援することが可能な補修用塗料の調色装置及び調色方法を提供することを目的としている。
誤差率=(|誤差|/基準値)×100[%]
R1:55.350[%] → L*1:+56.982
G1:47.306[%] → a*1:+22.693
B1:77.185[%] → b*1:-30.111
R2:55.899[%] → L*2:+56.818
G2:46.757[%] → a*2:+24.294
B2:77.703[%] → b*2:-31.080
ΔL*:-0.615
Δa*:+1.600
Δb*:-0.790
「4006」基本量:95.0× 656/10000≒ 6.23(g)
「4336」基本量:95.0×1108/10000≒10.53(g)
「4342」基本量:95.0× 748/10000≒ 7.11(g)
L*誤差率:0.27[%]
a*誤差率:5.33[%]
b*誤差率:2.42[%]
「4006」L*調色量: 6.23(g)×0.27[%]≒0.02[g](a)
「4336」L*調色量:10.53(g)×0.27[%]≒0.03[g](b)
「4342」a*調色量: 7.11(g)×5.33[%]≒0.38[g](c)
「4336」b*調色量:10.53(g)×2.42[%]≒0.26[g](d)
「4006」:0.02[g]追加
「4336」:0.26[g]追加
「4342」:0.38[g]追加
2 コンピュータ本体
3 フルカラーモニター
4 分光測色機
5 アタッチメント
10 補修車両の塗装対象部
20 塗板
Claims (7)
- カラーコードごとに配合塗料及び配合値を記憶し、色空間を構成する表色系の各座標軸に対応する特性情報を前記配合塗料ごとに記憶し、かつ、前記各座標軸上において任意に設けられた間隔ごとに所定の値を基準値として設定したものを記憶する記憶手段と、
塗装対象部の測色データと、当該塗装対象部のカラーコードに基づいて所望量作成した補修用塗料が塗装された塗板の測色データとの入力を受けるデータ受付手段と、
前記塗板の測色データと前記塗装対象部の測色データとの誤差を前記座標軸ごとに計算する誤差計算手段と、
前記記憶手段が記憶する特性情報を参照して、前記座標軸ごとに、前記誤差を減らす方向に作用する特性情報を有する配合塗料を調色候補として検索する調色候補検索手段と、
前記塗装対象部の塗装に用いる補修用塗料の分量の入力を受ける分量受付手段と、
前記記憶手段が記憶する配合値を参照して、前記分量に対応する前記調色候補の基本量を計算する基本量計算手段と、
前記座標軸ごとに、前記塗装対象部の測色データの値が含まれる前記間隔について設定された基準値を前記記憶手段から読み出し、前記誤差計算手段により計算された座標軸ごとの前記誤差を、読み出された当該基準値で割ることにより、前記座標軸ごとに誤差率を計算する誤差率計算手段と、
前記座標軸ごとに、前記基本量計算手段により計算された前記調色候補の基本量と前記誤差率計算手段により計算された前記誤差率とを掛け合わせることにより、前記調色候補の調色量を計算する調色量計算手段とを有することを特徴とする補修用塗料の調色装置。 - 前記調色候補検索手段は、前記塗板に塗装された補修用塗料に含まれる配合塗料の中から調色候補が検索されない場合には、前記塗装対象部に塗装することが許容された他のカラーコードの配合塗料を対象として調色候補を検索することを特徴とする請求項1記載の補修用塗料の調色装置。
- 前記データ受付手段が入力を受ける測色データは、輝度を変化させることが可能な分光測色機を用いて、測色対象物である前記塗装対象部又は前記塗板の反射率ないし吸収率に応じて輝度を変化させて測色することにより取得されるものであることを特徴とする請求項1又は2記載の補修用塗料の調色装置。
- 塗装対象部の測色データと、当該塗装対象部のカラーコードに基づいて所望量作成した補修用塗料が塗装された塗板の測色データとの入力を受けるデータ受付工程と、
前記塗板の測色データと前記塗装対象部の測色データとの誤差を、色空間を構成する表色系の座標軸ごとに計算する誤差計算工程と、
カラーコードごとに配合塗料及び配合値を記憶し、かつ、前記各座標軸に対応する特性情報を前記配合塗料ごとに記憶する記憶部を参照して、前記座標軸ごとに、前記誤差を減らす方向に作用する特性情報を有する配合塗料を調色候補として検索する調色候補検索工程と、
前記塗装対象部の塗装に用いる補修用塗料の分量の入力を受ける分量受付工程と、
前記記憶部が記憶する配合値を参照して、前記分量に対応する前記調色候補の基本量を計算する基本量計算工程と、
各座標軸上において任意に設けられた間隔ごとに所定の値を基準値として設定したものを記憶する記憶部を参照して、前記塗装対象部の測色データに対応する基準値を前記座標軸ごとに読み出し、前記誤差計算工程により計算された座標軸ごとの前記誤差を、読み出された当該基準値で割ることにより、前記座標軸ごとに誤差率を計算する誤差率計算工程と、
前記座標軸ごとに、前記基本量計算工程により計算された前記調色候補の基本量と前記誤差率計算工程により計算された前記誤差率とを掛け合わせることにより、前記調色候補の調色量を計算する調色量計算工程とを含むことを特徴とする補修用塗料の調色方法。 - 前記分量受付工程は、前記分量として、前記塗板に塗装することにより費消した補修用塗料の残存量の入力を受けることを特徴とする請求項4記載の補修用塗料の調色方法。
- 前記調色候補検索工程は、前記塗板に塗装された補修用塗料に含まれる配合塗料の中から調色候補が検索されない場合には、前記塗装対象部に塗装することが許容された他のカラーコードの配合塗料を対象として調色候補を検索することを特徴とする請求項4又は5記載の補修用塗料の調色方法。
- 前記データ受付工程により入力を受ける測色データは、輝度を変化させることが可能な分光測色機を用いて、測色対象物である前記塗装対象部又は前記塗板の反射率ないし吸収率に応じて輝度を変化させて測色することにより取得されるものであることを特徴とする請求項4から6のいずれか1項に記載の補修用塗料の調色方法。
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- 2016-05-27 CN CN201680029162.5A patent/CN107960087A/zh active Pending
- 2016-05-27 KR KR1020177033036A patent/KR20180016359A/ko not_active Application Discontinuation
- 2016-05-27 WO PCT/JP2016/065686 patent/WO2016194799A1/ja active Application Filing
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Also Published As
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JP2017003297A (ja) | 2017-01-05 |
US9964445B1 (en) | 2018-05-08 |
KR20180016359A (ko) | 2018-02-14 |
JP5846534B1 (ja) | 2016-01-20 |
CN107960087A (zh) | 2018-04-24 |
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