JP3769858B2 - Coating control method and apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coating control method and apparatus for spraying a paint from the rotary atomizing coating machine and coating the object while reciprocating the rotary atomizing coating machine along the coating surface of the object to be coated. It is about.
[0002]
[Prior art]
Conventionally, as shown in, for example, Japanese Patent Application Laid-Open No. Sho 62-234466, the first to third coating mechanisms having a coating gun for injecting paint are moved in the vicinity of an object to be coated by moving means, thereby In the coating apparatus for coating the first to third coating parts constituting the workpiece, the first to third coating mechanisms enable the first and third coating mechanisms to move forward and backward with respect to the coating object. The paint distance adjusting means is provided, and the at least one of the first to third paint mechanisms is provided with a paint angle adjusting means for changing the posture of the paint gun by swinging the paint gun of the paint mechanism. When the first to third coating mechanisms move, the separation distance between the coating guns of the first to third coating mechanisms and the first to third coating parts is set to the first to third. Adjust so that it is uniform by the coating distance adjustment means. Together, they have been made to be painted while adjusting so as to uniform the paint angle adjusting means the angle with respect to the coated portion of the spray gun in the coating mechanism the coating angle adjusting means is provided.
[0003]
[Problems to be solved by the invention]
When the coating mechanism with the coating gun is moved by the moving means as described above and the coating mechanism is automatically applied, the moving speed of the coating mechanism, the spray amount of the paint, the coating gun and the coating target It is known that the state of adhesion of the paint is likely to change depending on the coating conditions including the distance between the object and the like. For this reason, in the painting apparatus described in the above publication, the installation angle of the painting gun is adjusted so that the separation distance between the painting gun and the painting site is constant, but the separation distance is constant. However, if one of the coating conditions changes, the film thickness distribution state of the coating film changes significantly. For this reason, each time the coating conditions are changed, it is necessary to repeat a complicated evaluation test in which the coating mechanism is actually operated and a coating test is performed, and then the thickness of each part is measured to set a suitable coating condition. There is a problem that time and materials for that purpose are wasted.
[0004]
Recently, in the case of performing metallic coating using a paint mixed with metal powder such as aluminum powder, in order to allow the aluminum powder to adhere to the vehicle body in an appropriate state, Japanese Patent Laid-Open No. Sho 62 As shown in Japanese Patent No. 4464, a rotary atomizing coating machine comprising a bell type sprayer that rotates a bell at a high speed and applies a high voltage to the bell to perform coating is used. The paint is sprayed onto the vehicle body in an atomized state by reciprocating the rotary atomizing coater while conveying the object to be coated by a conveyor or the like. When a machine is used, there is a problem that it is particularly difficult to set suitable coating conditions.
[0005]
That is, when the rotary atomizer-type coating machine is configured to reciprocate, the coating is performed between the right side and the left side of the trajectory of the rotary atomizer-type coater according to the spray characteristics of the paint. A difference occurs in the state of adhesion of the paint, and due to this, the distribution state of the coating formed when the rotary atomizer-type coating machine moves forward and the coating formed when the rotary atomizer-type coater returns. It is inevitable that the distribution state of the film changes. For this reason, the film thickness distribution state of the coating film formed by polymerizing the coating film at the time of forward movement and the coating film at the time of backward movement is accurately predicted so that the film thickness becomes uniform. There was a problem that it was extremely difficult to set the coating conditions.
[0006]
In view of such circumstances, the present invention executes the coating control easily and appropriately to set the thickness of the coating film uniformly when the rotary atomizing coating machine is reciprocated to perform coating. It is an object of the present invention to provide a coating control method and apparatus capable of performing the same.
[0007]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a coating control method in which a rotary atomizing coating machine is applied while reciprocating along a coating surface of an object to be coated. After creating the first standard pattern of the film and the second standard pattern of the coating film formed at the time of return under specific coating conditions, the two standard patterns are synthesized to create the film thickness distribution data. After selecting the coating conditions capable of uniformly forming the film thickness distribution state of the coating film by evaluating the film thickness distribution data, the coating control is executed based on the coating conditions.
[0008]
According to the said structure, film thickness distribution data are produced by synthesize | combining the 1st standard pattern and 2nd standard pattern of the coating film corresponding to specific coating conditions, Based on this film thickness distribution data, the said coating By determining whether or not the conditions are appropriate, the optimum painting conditions are selected, and the painting control is executed based on the selected painting conditions.
[0009]
According to a second aspect of the present invention, in the coating control method according to the first aspect, after the first pattern and the second pattern are created in advance under various coating conditions, the respective coating conditions are sequentially set to this. The first and second standard patterns corresponding to each other are specified, and both standard patterns are combined to create film thickness distribution data.
[0010]
According to the above configuration, the first standard pattern and the second standard pattern of the coating film corresponding to the predetermined coating condition are set by setting predetermined coating conditions from among various coating conditions, and then the first standard. Film thickness distribution data is created by synthesizing the pattern and the second standard pattern. Then, the work for creating the film thickness distribution data is performed under the various coating conditions described above, and the optimum coating conditions are selected based on the created film thickness distribution data. Based on the selected coating conditions, The painting control is executed.
[0011]
According to a third aspect of the present invention, in the coating control method according to the first or second aspect, the first and second standard patterns are synthesized by applying the paint onto the painted surface by a plurality of rotary atomizing coaters. Polymerization data is created by polymerizing the obtained film thickness distribution data, and the creation operation of the polymerization data is repeated a number of times corresponding to the number of the rotary atomizing coating machines.
[0012]
According to the above configuration, the film thickness distribution data created by synthesizing the first and second standard patterns is polymerized a number of times corresponding to the number of the rotary atomizing coating machines, thereby allowing a plurality of rotations. Polymerization data corresponding to the film thickness distribution state of the coating film reapplied by the atomizing coater is created, and optimum coating conditions are selected based on this polymerization data.
[0013]
According to a fourth aspect of the present invention, in the coating control method according to the third aspect, the polymerization phase of the film thickness distribution data is displaced in correspondence with the operation phase of each rotary atomizing coating machine.
[0014]
According to the said structure, when superposing | polymerizing the film thickness distribution data produced by synthesize | combining the 1st standard pattern and 2nd standard pattern of a coating film, and producing superposition | polymerization data, the said rotary atomization type coating machine The polymerization phase of the film thickness distribution data is displaced according to the operation phase of each rotary atomizing coater based on the operation phase of the coating film, thereby corresponding to the film thickness distribution state of the coating film that is actually formed. Polymerization data will be created.
[0015]
The invention according to claim 5 is the coating control method according to any one of claims 1 to 4, wherein the coating distance between the rotary atomizing coating machine and the object to be coated, the spray amount of the paint, and the condition of the object to be coated At least one of the relative movement speeds is set as a coating condition.
[0016]
According to the above configuration, at least one of the coating distance between the rotary atomizing coating machine and the object to be coated, the spray amount of the paint, and the relative moving speed of the object is set to a specific condition. After the first standard pattern and the second standard pattern are created, the film thickness distribution data is created by synthesizing both the standard patterns.
[0017]
The invention according to claim 6 is the coating control method according to any one of claims 1 to 5, wherein the object to be coated is sprayed with a paint mixed with metal powder from a rotary atomizing coating machine. It is.
[0018]
According to the said structure, a coating condition will be set so that the distribution of the film thickness formed by spraying the coating material in which the metal powder was mixed from a rotary atomization type coating machine may become uniform.
[0019]
The invention according to claim 7 is a coating control device used in a coating apparatus that applies a rotary atomizing coating machine while reciprocating along a coating surface of an object to be coated. An input means for inputting, and a first standard pattern of a coating film formed during the forward movement of the rotary atomizing coating machine under various coating conditions and a second standard pattern of a coating film formed during the backward movement are stored. Distribution data for creating film thickness distribution data by reading out the first standard pattern and the second standard pattern of the coating film corresponding to the input signal of the storage means and the input means from the storage means and synthesizing both the standard patterns A creation means and a display means for displaying the film thickness distribution data created by the data creation means are provided.
[0020]
According to the above configuration, when a predetermined coating condition is input by the input unit, the first standard pattern and the second standard pattern of the coating film corresponding to the coating condition are read from the storage unit, and this first standard is read out. The film thickness distribution data is created by combining the pattern and the second standard pattern in the distribution data creation means, and the film thickness distribution data is displayed on the display means. The suitability of the is determined.
[0021]
The invention according to claim 8 is the coating control apparatus according to claim 7, which is used in a coating apparatus configured to repaint a paint surface by a plurality of rotary atomizing coating machines. The polymerization data is created by polymerizing the film thickness distribution data created by synthesizing the two standard patterns, and the creation of this polymerization data is repeated a number of times corresponding to the number of the rotary atomizing coating machines, These polymerization data are configured to be displayed on the display means.
[0022]
According to the above configuration, the film thickness distribution data created by combining the first standard pattern and the second standard pattern of the coating film corresponding to the coating conditions inputted by the input means in the distribution data creating means, By being polymerized a number of times corresponding to the number of the rotary atomizing coating machines, coating film distribution data corresponding to the film thickness distribution state of the actually formed coating film is created, and this film thickness distribution data Is displayed on the display means, and the suitability of the coating condition is determined based on the display data.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows the overall structure of a painting apparatus used for carrying out the painting control method according to the present invention. This coating apparatus includes a pair of left and right side rotary atomizing coating machines 3 and 4 including bell type sprayers that coat left and right side walls of an object 2 including a vehicle body conveyed by a conveyor 1, and the like It has a pair of upper rotary atomizing type coating machines 5 and 6 which consist of a bell type sprayer etc. which coats the upper wall surface of the article 2 to be coated.
[0024]
The side rotary atomizing coaters 3 and 4 are each supported by an arcuate guide rail 7 installed so as to extend in the vertical direction, and can be moved up and down, and includes a chain drive mechanism and the like not shown. It is configured to reciprocate up and down by being driven by a driving means. The upper rotary atomizing coating machines 5 and 6 are supported slidably along a guide rail 8 installed in a direction orthogonal to the conveying direction of the article 2 and a chain drive mechanism (not shown). It is driven by a driving means composed of, etc., and is configured to reciprocate horizontally in an integrated state.
[0025]
The coating apparatus having the left and right side rotary atomizing coaters 3 and 4 and the pair of upper rotary atomizing coaters 5 and 6 is, as shown in FIG. The station 9 and the second station 10 are respectively disposed. Further, the third station 11 located downstream of the second station 10 includes three upper parts that are slid in the horizontal direction along guide rails installed in a direction orthogonal to the conveying direction of the object to be coated. The rotary atomizing coating machines 12 to 14 and the left and right side rotary atomizing coating machines 15 to be driven up and down along three rows of guide rails installed so as to extend in the vertical direction on the left and right sides. A coating device for finishing coating having 17, 18-20 is arranged.
[0026]
The coating apparatus is provided with a coating control apparatus that is used when selecting the coating conditions. As shown in FIG. 3, the coating control apparatus includes an input means 21 for inputting the coating conditions and the like of the coating apparatus, and a coating formed when the rotary atomizing coating machine moves forward under various coating conditions. Storage means 22 for storing the first standard pattern of the film and the second standard pattern of the coating film formed at the time of returning, and storing the first standard pattern and the second standard pattern corresponding to the input signal of the input means 21 From the distribution data creation means 23 for creating the film thickness distribution data by reading out from the means 22 and synthesizing both the standard patterns, and from the monitor or printer for displaying the film thickness distribution data created by the distribution data creation means 23 Display means 24 is provided.
[0027]
The input means 21 includes a coating condition including a paint distance from the paint spraying portion of the rotary atomizing coater to the article 2 to be coated, a conveying speed of the conveyor 1 and a moving distance of the rotary atomizer coater. It is composed of a keyboard and the like for inputting facility specifications and a later-described pass pitch, which is a reference condition for setting the creation position of the film thickness distribution data created by the distribution data creation means 23.
[0028]
The first standard pattern stored in the storage means 22 is a paint by spraying the paint during the forward movement while reciprocating the rotary atomizing coater with the driving means in a state where the object 2 is fixed. It is created by forming a coating film by repeating a predetermined number of times of presetting, for example, eight times, and measuring film thickness data of the cross section. In addition, the second standard pattern is created by measuring the film thickness data of the cross-section by forming a coating film by spraying the coating material and recoating the coating material when the rotary atomizer-type coating machine returns. It has become so.
[0029]
The first and second standard patterns are created in advance under various painting conditions in which the painting distance is set to various values, and these are stored in the storage means 23, respectively. For example, the first and second standard patterns when the painting distance is set to 210 mm are as shown in FIG. 4, and the first and second standard patterns when the painting distance is set to 160 mm are as shown in FIG. It was confirmed by experiments that the first and second standard patterns are as shown in FIG. 5 and when the coating distance is set to 300 mm, as shown in FIG.
[0030]
From the above experimental data, it can be seen that the shorter the coating distance, the greater the thickness of the coating film. Furthermore, when a difference occurs in the adhesion state of the paint between the forward movement and the backward movement of the rotary atomizing coating machine, and the first standard pattern is reversed left and right, the shape approximated to the second standard pattern It turns out that it becomes. That is, the first standard pattern and the second standard pattern are the right side and the left side of the movement trajectory of the rotary atomizing coater according to the spray characteristics of the paint sprayed from the rotary atomizing coater. It was confirmed that there was a difference in the adhesion state of the paint between them, and the shape of the coating film was substantially symmetrical between the first standard pattern and the second standard pattern.
[0031]
Further, the distribution data creating means 23 reads the first and second standard patterns corresponding to the painting conditions inputted by the input means 21, that is, the painting distance, etc. from the storage means 22 and inputted by the input means. It consists of equipment specifications consisting of the conveying speed of the conveyor 1 and the moving distance of the rotary atomizing coater, the number of times of coating during the creation of the first and second standard patterns, and the moving speed of the rotary atomizing coater. By correcting the first and second standard patterns on the basis of the experimental conditions, when the rotary atomizing coating machine is moved once and coated while the object to be coated 2 is conveyed, The correction data of the above first and second standard patterns that match the film pressure distribution state of the coating film to be formed and the film pressure distribution state of the coating film that is actually formed when it is applied once recovered. Asking It is configured.
[0032]
The distribution data creation means 23 has a function of setting the creation position of the film thickness distribution data based on the reference condition composed of the pass pitch input by the input means 21. At the creation position, the distribution data creation means 23 The film thickness distribution data is obtained by synthesizing the correction data.
[0033]
That is, when the rotary atomizing coating machine is reciprocated by the driving means while conveying the article 2 by the conveyor 1, as shown in FIG. The movement trajectory A of the rotary atomizing coating machine with respect to is a waveform shape. For this reason, when the path pitch P1 of the portion protruding above the movement locus A is set to a value larger than the path pitch P2 of the portion protruding downward, only a predetermined distance D from the center line o of the movement locus A. The film thickness distribution data creation position is set on the line segment c located below, and data corresponding to both the standard patterns is synthesized at the creation position as described later.
[0034]
In addition, when the paint is applied repeatedly by a plurality of rotary atomizing coaters, the distribution data creating means 23 is adapted to the number of times corresponding to the number of the rotary atomizing coaters. The film thickness distribution data created by synthesizing the correction data is superposed. Furthermore, the distribution data creation means 23 has a function of changing the polymerization phase of the film thickness distribution data based on the operation phase when the plurality of rotary atomizing coating machines are reciprocated at different phases. Yes.
[0035]
That is, in a coating apparatus having a pair of rotary atomizing coaters, as shown in FIG. 8, the movement trajectory A1 of one rotary atomizing coater and the movement trajectory A2 of the other rotary atomizing coater If a half-phase (P / 2) shift occurs between the movement trajectory A1 and the movement trajectory A2, the film thickness distribution data created in the distribution data creation means 23 accordingly. Then, the film thickness distribution data obtained by shifting the phase of the film thickness distribution data by a half phase is superposed, so that superposition data suitable for the actual film thickness distribution state is created.
[0036]
In the case of controlling the coating conditions including the coating distance using the coating control device having the above-described configuration, for example, the side rotary atomizing coating machine 3 disposed on the left side of the first and second stations 9 and 10 is used. A control operation in the case of executing the coating control when the left side wall surface of the article 2 is subjected to the intermediate coating by 3 will be described based on the flowchart shown in FIG. When this control operation is started, first, the conveying speed V of the conveyor 1 and the moving distance L of the rotary atomizing coaters 3 and 3 are input by the input means 21 (step S1), and the rotary atomizing coater 3 is also input. , 3, and the paint condition consisting of the paint distance S from the paint spraying part to the article 2 to be coated is input (step S2). Further, data Tao and Tbo of the first and second standard patterns of the coating film corresponding to the coating distance S input by the input unit 21 are read from the storage unit 22 (step S3).
[0037]
Next, the input means 21 inputs the pass pitches P1 and P2 (step S4), and after setting the film thickness distribution data creation position by the composite data creation means 23 based on the pass pitches P1 and P2 (step S5), Film thickness distribution data T is created by synthesizing correction data Ta and Tb obtained by correcting the data Tao and Tbo of the first and second standard patterns (step S5).
[0038]
That is, it corresponds to the conveying speed V of the conveyor 1, the moving distance L of the rotary atomizing coating machines 3 and 3, and the distance the conveyor 1 moves while the rotary atomizing coating machines 3 and 3 make one round trip. After calculating the correction value v (= VL / P) for correcting the data Tao, Tbo of the first and second standard patterns based on the pitch distance P (= P1 + P2) of the movement trajectory A. The correction value v, the data Tao and Tbo of the first and second standard patterns, the number of times of coating no at the time of creating the first and second standard patterns, and the moving speed vo of the rotary atomizing coater. Based on the experimental conditions, the correction data Ta and Tb are calculated based on the following equation.
[0039]
Ta = Tao × 1 / no × vo / v, Tb = Tbo × 1 / no × vo / v
By performing the above calculation, it was obtained by performing an experiment in which the rotary atomizing type coating machines 3 and 3 were moved no. The data Tao and Tbo of the first and second standard patterns are converted so as to be adapted to the state in which the rotary atomizing coating machines 3 and 3 are moved along the movement locus A, and the rotary atomizing coating machine 3 , 3, correction data Ta and Tb considering the relative movement of the article 2 to be coated are obtained.
[0040]
Then, as shown in FIG. 10, correction data Ta obtained by correcting the first standard pattern of the coating film formed when the rotary atomizing coating machine 3, 3 is moved forward is used as the pitch distance P. The second standard pattern of the coating film formed when the rotary atomizing coating machine is moved backward is corrected between the correction data Ta and Ta of the first standard pattern. The correction data Tb is arranged at intervals corresponding to the path pitches P1 and P2, and the film thickness distribution data T of the coating film is created by combining the correction data Ta and Tb.
[0041]
Next, by superposing the pair of film thickness distribution data T created in step S6 at the same position, as shown in FIG. 11, superposition data T1 having the same phase is created (step S7), and FIG. As shown, the film thickness distribution data T created in step S6 and the film thickness distribution data T ′ obtained by shifting the film thickness distribution data T ′ by a half phase are superposed to create the superposition data T2 of different phases (step). S8). In this example, from the data shown in FIG. 11 and FIG. 12, a pair of film thickness distribution data T, in which one phase is displaced by a half phase, compared to a case where a pair of film thickness distribution data T is superposed at the same position. It can be seen that a film having a uniform film thickness is formed when T ′ is polymerized.
[0042]
Thereafter, it is determined whether or not the polymerization data has been performed a preset number of times (step S9). If NO is determined, the process returns to step S4 to input different values of the path pitches P1 and P2. As a result, the creation position of the film thickness distribution data T is changed, and the work of creating the polymerization data T1, T2 is repeated.
[0043]
And when it determines with YES in the said step S9, while displaying each superposition | polymerization data T1, T2 created by the said steps S7, S8 on the display means 24, it is input by the said step S2 based on this display data. The suitability of the coating distance S is determined (steps S10 and S11). That is, based on the polymerization data T1 and T2 displayed on the display means 24, when it is confirmed that the thickness of the coating film at each data creation position is formed uniformly, the coating distance S is It is determined that it is appropriate.
[0044]
If it is determined NO in step S11 and it is confirmed that the coating distance S is not appropriate, the process returns to step S2, and after inputting a different value of the coating distance S, the polymerization data T1 and T2 are created. And the operation | work which discriminate | determines the suitability of the said coating distance S based on the display data is repeated, when it determines with YES in the said step S11 and it has confirmed that the data of the appropriate coating distance S were obtained, The control operation is terminated.
[0045]
According to the coating distance S selected as described above, the installation position of the rotary atomizing coater 3 and 3 with respect to the object to be coated 2 is determined, whereby the rotary atomizing coater is reciprocated to perform painting. In this case, the coating control is appropriately executed, and a coating film having a uniform film thickness is formed on the painted surface of the article 2 to be coated.
[0046]
Thus, with the coating distance S set to various values, the data Tao of the first standard pattern of the coating film formed during the forward movement of the rotary atomizing coating machine and the coating film formed during the backward movement After preparing the data Tbo of the second standard pattern in advance, each of the coating distances S is sequentially set to identify the first and second standard patterns corresponding to the coating distance S, and the correction of both the standard patterns The film thickness distribution data T is created by combining the data Ta and Tb, and the coating distance S is selected by evaluating the polymerization data T1 and T2 created based on the film thickness distribution data T. Since the coating control is executed based on the distance S, it is possible to easily set the coating distance S that can make the film thickness distribution state of the coating film uniform and appropriately execute the coating control. .
[0047]
That is, the first and second standard patterns of the coating film formed by the rotary atomizing coating machine used when spraying a paint mixed with metal powder such as aluminum powder is used in advance. By preparing based on the experiment conducted, the film thickness distribution data T taking into account the spray characteristics of the rotary atomizing coater is obtained, and the coating distance S is appropriately selected by analyzing this data. In addition, the selection operation can be easily and quickly performed based on the calculation for synthesizing the first and second standard patterns.
[0048]
As described above, the input means 21 for inputting the coating distance S of the coating apparatus, the storage means 22 for storing the first and second standard patterns of the coating film, and the coating corresponding to the input signal of the input means 21 The first and second standard patterns of the film are read from the storage means 22 and corrected, and the distribution data creating means 23 for creating the film thickness distribution data T and the polymerization data T1 and T2 by synthesizing the correction data Ta and Tb. And the above-mentioned display means when configured to execute the above-mentioned paint control using a paint control device provided with the display means 24 for displaying the film thickness distribution data T created by the data creation means 23. The suitability of the coating distance S can be easily and properly determined based on the 24 display data. Furthermore, when it is determined that the coating distance S is not appropriate according to the determination result, the input means 21 is used to input a new coating distance S, thereby making it easy and quick to determine the suitability. Can be executed.
[0049]
Therefore, by determining the installation position of the rotary atomizing coater with respect to the article 2 according to the coating distance S selected based on the display data of the display means 24, the rotary atomizing coater is There is an advantage that a coating film having a uniform film thickness can be formed on the object to be coated 2 by performing the coating control when performing the reciprocating coating more easily and appropriately.
[0050]
Further, in the above-described embodiment, in the coating apparatus configured to apply the paint by reciprocating the pair of rotary atomizing coating machines while reciprocating along the coating surface of the object to be coated, Since the composition data T1 and T2 are created by polymerizing the film thickness distribution data T obtained by synthesizing the correction data Ta and Tb of the two standard patterns, the paint sprayed from the above-described double-rotation atomizing paint By analyzing the film thickness distribution state of the coating film formed by being repeatedly applied on the basis of the polymerization data T1 and T2, the suitability of the coating distance S can be easily and appropriately determined.
[0051]
In particular, as shown in the above embodiment, in the coating apparatus configured to reciprocate the pair of rotary atomizing coating machines 3 along the coating surface of the workpiece 2 in different phases, the rotation When the polymerization phase of the film thickness distribution data T is displaced based on the operation phase of the atomizing coater, how the polymerization data T2 is determined according to the operation phase of the rotary atomizing coater. It can be easily analyzed whether it changes.
[0052]
In addition, it replaces with the said embodiment comprised so that the operation | movement phase of a rotary atomizing type coating machine may be displaced only by a half phase, and the operation phase of a rotary atomizing type coating machine is arbitrary phases, such as 1/3 or 1/4 And the superposition phase of the film thickness distribution data T and T ′ may be displaced in correspondence with the operation phase. When comprised in this way, there exists an advantage that the operation | movement phase of the said rotary atomization type coating machine which can set the film thickness distribution state of a coating film uniformly can be discriminate | determined easily and appropriately.
[0053]
Moreover, although the said embodiment demonstrated the case where the coating control method concerning this invention was applied to the coating device which has a pair of rotary atomizing coating machine, the number of the said rotary atomizing coating machines is the said implementation. Without being limited to the form, it can be changed to one or more. When the number of the rotary atomizing coating machines is one, it is not necessary to superimpose the film thickness distribution data T in the composite data creating means 23, and the number of the rotary atomizing coating machines is three. If this is the case, the operation of superimposing the film thickness distribution data T by the synthetic data creating means 23 may be repeated three or more times correspondingly.
[0054]
Further, in the above-described embodiment, the first and second standard pattern data Taob and Tbo created based on the data of the experiment conducted in advance are used as the correction data Ta and Tb adapted to the actual coating state in the composite data creation means 23. In order to correct the relative movement of the object to be rotated with respect to the rotary atomizing coating machine, the first and second standard patterns suitable for the actual coating state are used. It may be configured so as to be obtained in advance by experiment and stored in the storage means 23. In this case, the conversion work to the correction data Ta and Tb can be omitted.
[0055]
Moreover, although the said embodiment demonstrated the case where the coating control of a coating device was performed based on the coating condition which consists of the coating distance S, it replaces with the said coating distance S or in addition to this from a rotary atomization type coating machine. You may comprise so that the spraying quantity of the coating material sprayed, the shaving air pressure, the rotational speed of a head, or the applied voltage of static electricity may be set as a coating condition. Furthermore, the relative moving speed of the object to be coated can be set as a coating condition.
[0056]
【The invention's effect】
As described above, the present invention specifies the first standard pattern of the coating film formed during the forward movement of the rotary atomizing coating machine and the second standard pattern of the coating film formed during the backward movement. After creating in advance below, the first and second standard patterns are synthesized to create film thickness distribution data, and the film thickness distribution state of the coating film is uniformly formed by evaluating the film thickness distribution data. After selecting the paint conditions that can be used, the paint control is executed based on the paint conditions. Therefore, each time the paint conditions are changed, the paint device is actually operated to perform a paint test. Without repeating the complicated evaluation test of setting the coating conditions, it is possible to easily and appropriately select the coating conditions by calculation in consideration of the spray characteristics of the rotary atomizing coating machine. Therefore, when coating is performed by reciprocating the rotary atomizing coating machine, the coating apparatus can be effectively controlled so that the thickness of the coating film can be formed easily and appropriately uniformly.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a coating apparatus used for carrying out a coating control method of the present invention.
FIG. 2 is a plan view showing an installation state of the coating apparatus.
FIG. 3 is a block diagram showing a configuration of a painting control apparatus according to the present invention.
FIG. 4 is a graph showing an example of a standard pattern of a coating film.
FIG. 5 is a graph showing another example of a standard pattern of a coating film.
FIG. 6 is a graph showing another example of a standard pattern of a coating film.
FIG. 7 is an explanatory diagram showing a movement trajectory of a coating machine.
FIG. 8 is an explanatory view showing another example of the movement trajectory of the coating machine.
FIG. 9 is a flowchart showing an embodiment of a painting control method according to the present invention.
FIG. 10 is an explanatory diagram showing film thickness distribution data of a coating film.
FIG. 11 is an explanatory view showing polymerization data of a coating film.
FIG. 12 is an explanatory diagram showing another example of polymerization data of a coating film.
[Explanation of symbols]
3-6, 12-20 Rotating atomizing coating machine
21 Input means
22 Memory means
23 Distribution data creation means
24 Display means

Claims (8)

In a coating control method for coating a rotary atomizing coating machine while reciprocating along a coating surface of an object to be coated, a first standard pattern of a coating film formed when the rotary atomizing coating machine moves forward, After creating the second standard pattern of the coating film formed at the time of return under specific painting conditions, synthesize both standard patterns to create film thickness distribution data, and evaluate this film thickness distribution data A coating control method comprising: selecting coating conditions capable of uniformly forming the film thickness distribution state of the coating film, and performing coating control based on the coating conditions. After the first pattern and the second pattern are created in advance under various coating conditions, the respective coating conditions are sequentially set to identify the first and second standard patterns corresponding thereto, and both the standard patterns The coating control method according to claim 1, wherein the film thickness distribution data is created by synthesizing. 3. The coating control method according to claim 1 or 2, wherein the coating surface is coated with a plurality of rotary atomizing coating machines, and the film thickness distribution data obtained by synthesizing the first and second standard patterns is superposed. A coating control method characterized in that the polymerization data is created by repeating the creation of the polymerization data a number of times corresponding to the number of the rotary atomizing coating machines. 4. The coating control method according to claim 3, wherein the polymerization phase of the film thickness distribution data is displaced in correspondence with the operation phase of each rotary atomizing coating machine. 5. The coating condition is set as at least one of a coating distance between the rotary atomizing coating machine and the object to be coated, a spray amount of the paint, and a relative moving speed of the object to be coated. The coating control method according to any one of the above. The coating control method according to claim 1, wherein the object to be coated is sprayed by spraying a paint mixed with metal powder from a rotary atomizing coating machine. A coating control apparatus used in a coating apparatus that applies a rotary atomizing coating machine while reciprocating along a coating surface of an object to be coated, and includes an input means for inputting the coating conditions of the coating apparatus, Storage means for storing a first standard pattern of a coating film formed during the forward movement of the rotary atomizing coater under a coating condition and a second standard pattern of a coating film formed during a backward movement; Distribution data creation means for creating film thickness distribution data by reading out the first standard pattern and the second standard pattern of the coating film corresponding to the input signal from the storage means and synthesizing both standard patterns, and the data creation means And a display means for displaying the film thickness distribution data created by the coating control apparatus. 8. The coating control apparatus according to claim 7, wherein the coating control apparatus is used in a coating apparatus configured to repaint a coating surface by a plurality of rotary atomizing coating machines, by synthesizing the first and second standard patterns. Polymerization data is created by polymerizing the created film thickness distribution data, and this polymerization data creation operation is repeated a number of times corresponding to the number of the rotary atomizing coating machines to display the created polymerization data. A coating control apparatus characterized by being configured to display in the above.

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