KR20100101207A - Apparatus and method for uniform thickness of applied coatings on the hull and measurement of coating thickness with non-contact system - Google Patents

Abstract

PURPOSE: A device and a method for uniformly spreading paints on a hull and measuring the thickness of painting are provided to maintain uniform painting quality by enabling a worker to confirm painting thickness information in real time. CONSTITUTION: A device for uniformly spreading paints on a hull and measuring the thickness of painting comprises a painting quality information DB, multiple cameras(300), a sensor, and a control panel(200). The painting quality information DB compares painting qualities and stores the quality information. The cameras are installed in a gondola or a ship and tracks the trace of a spray gun(110). The control panel has a controller, a memory unit, a calculation unit, and a display unit. The controller is composed of a micro-process installed in the gondola. The memory unit stores all kinds of DBs. The calculation unit calculates the stored information. The display unit displays standard color and painting thickness.

Description

Apparatus and method for measuring uniform thickness of hull coating and non-contact coating film thickness and its method {APPARATUS AND METHOD FOR UNIFORM THICKNESS OF APPLIED COATINGS ON THE HULL AND MEASUREMENT OF COATING THICKNESS WITH NON-CONTACT SYSTEM}

The present invention relates to a uniform coating of hull coating and a non-contact coating film thickness measuring apparatus, and a method thereof, and more particularly, by using an IT-based coating simulation technology, a worker checks his or her painting situation in real time during hull coating work. It can be applied while coating, and uniform coating is possible, and even the wet film state can confirm the final dry film thickness by non-contact type. Improved hull coating uniform coating and non-contact to reduce paint usage. A coating film thickness measuring apparatus and its method.

In general, when the ship's hull coating is carried out when the ship is built, two workers on a vehicle (or gondola) work in a group, one (painter) sprays, and another In response to the spray speed, the operator moves the paint sprayer while moving up, down, left, and right by using the joystick of the operation panel installed in the vehicle (or gondola).

However, since the height of the hull is usually about 30m, this work requires a worker to directly ride on industrial heavy equipment such as a high-altitude vehicle, and the spraying should be performed at a height while maintaining a certain distance from the outer shell of the hull. In addition, the environmental pollution can be serious due to the dust scattered during the painting work, as well as the waste of the paint due to irregular painting work (the actual amount of paint used is 250% on average compared to the theoretical application amount by design).

In particular, since the hull painting work is performed only depending on the skill of the painter, there is a problem in that the paint defect rate is high due to uneven paint quality due to severe variation in paint quality according to the skill of the painter.

In addition, even when measuring the thickness of the coating film after the hull coating, accurate measurement of the thickness of the coating film was possible only by contact measurement on the dry film surface where the painting is completely dry. Therefore, the operator cannot know the information about the thickness of the coating film during operation. There is a concern that the film or low film is high, and the work time is excessively long.

In addition, when the painting work is carried out using the vehicle, the work area is the outer shell plate, so the worker must carry out the spray painting work on heavy equipment such as the vehicle (or gondola), and usually the basket of the vehicle (or gondola) In the case of two people traveling in the vertical and horizontal transfer manually, the cantilever-shaped truck and the gondola basket supported by the wire may cause sag, shake and vibration. Spraying should be done.

Therefore, the worker is required to have long skill and high skill, and the work environment is poor. Therefore, the worker has to carry out the painting work relying entirely on manual work in a state of high risk compared to other work and exposed to safety accidents. Phosphorus clusters, in particular musculoskeletal disorders, can be caused.

The present invention was created in view of the above-mentioned problems in the prior art, and was created to solve this problem. The coating of a plurality of specimens under coating conditions considering hull coating in advance results in a database, and the above coating quality. Using IT-based coating simulation technology developed based on the database, the actual worker carries out hull painting work to maintain constant and uniform coating quality regardless of the skill of the operator, and it is also non-contact even in the state of humidity film. By calculating the thickness information of the coating film, the operator can perform the painting construction work while checking the thickness information of the coating film in real time, thereby preventing excessive film or low film phenomenon and further reducing cost by reducing the amount of paint used. Uniformity of hull coating to reduce work load There is the main challenge to provide an artillery non-contact film thickness measuring apparatus and method.

The present invention is a means for achieving the above-described problems, the coating quality information DB for testing the coating quality according to the various coating conditions to be installed on the hull and analyzed the numerical value and stored as information; A plurality of cameras installed on the hull for the hull coating or the gondola and the hull on which the painting is constructed to track the trajectory of the spray gun; A sensor provided in the vehicle or gondola and installed at the distal end of the spray gun for spraying paint onto the hull and measuring a distance between the hull and the spray gun; Control unit consisting of a micro process installed in the vehicle or gondola, a distance information DB connected to the control unit and stored distance information between the spray gun and the hull, the motion connected to the control unit to track the trajectory of the spray gun and stored it as information Color information DB, the color information or the film thickness information is stored one-to-one correspondence with the information DB, the coating quality information DB, the distance information DB, and the motion information DB, the coating quality information DB is stored in connection with the controller, A memory unit that uses the extracted information as a temporary storage space, an operation unit and a comparative analysis unit that calculates the information stored in the memory unit and selects a standard color or film thickness of the coating surface by comparing with the coating quality information DB, and the selected standard Including a control panel consisting of a display unit for displaying the color or film thickness to the operator It provides a hull paint uniformly coated with the non-contact film thickness measuring apparatus, characterized in that.

In this case, the control unit may further include an input / output unit for connecting an external memory for updating data of the DBs or directly inputting a control signal.

In addition, the control unit is characterized in that the voice output unit is further provided to output the information output to the display unit as a voice.

In addition, the display unit is characterized in that it is a monitor or a wearable display device.

In addition, the control unit is characterized in that the wireless transmission and reception unit is further provided to communicate with the central control system to update the data of the DBs in a wireless communication method.

In addition, the present invention, the painting operation is started in a state in which the basic coating conditions for the painting target hull is set, and at the same time the distance information measured by the sensor installed at the tip of the spray gun to measure the distance between the hull and the spray gun is stored in the memory unit; Step 1; A second step in which the distance information measured in the first step is transmitted to the control unit, and the control unit controls the camera to store tracking information obtained by photographing the traces of the painter and the spray gun in the memory unit; After the second step, the control unit is a third step of extracting the color and thickness of the paint surface suitable for the distance information and motion information measured in the injection pressure from the color thickness information DB and the motion information DB to store in the memory unit; After the third step, the control unit controls the operation unit to calculate the swing information of the spray gun after analyzing the distance information of the hull and the spray gun tracking information stored in the memory unit with an analysis program; A fifth step of selecting a dry film thickness in a standard color and humidity film state for each film thickness from the coating quality information DB stored in the memory unit based on the information determined after the fourth step; And a sixth step in which the standard color and the coating film thickness selected in the fifth step are displayed on the display unit under the control of the control unit.

In this case, in the sixth step, the content displayed on the display is characterized in that it is displayed on the screen and also output as voice.

According to the present invention, the painter can check the coating quality which he is constructing in real time at the same time as the painting construction, and thus, it is possible to secure an appropriate coating quality, and uniform coating construction is possible because the coating is performed using a database. Since the amount of paint can be reduced, the cost of painting can be reduced, and the workload can be reduced, thereby preventing the musculoskeletal disorder of the painter.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

1 is an exemplary test picture showing an example of use of the device according to the invention, FIG. 2 is a block diagram showing the main configuration of the device according to the invention, FIG. 3 is a flowchart showing the method according to the invention, 4 is an exemplary sample photograph showing a painting operation example using the apparatus according to the present invention.

As shown in FIG. 1, the apparatus according to the present invention includes a control panel 200, a plurality of cameras 300, and a sensor (not shown).

At this time, the control panel 200 is installed in the inner place of the high-rise (or gondola) 100 that the painter rides for work.

In addition, the camera 300 tracks the trajectory of the spray gun 110 when the hull 120 is coated, that is, the motion (swing) of the painter to use the data to predict the quality and thickness of the coating surface. Is provided for.

In addition, the sensor is provided as a distance measuring sensor to measure the distance between the spray gun 110 and the hull 120 is also used as data to predict the quality and thickness of the coating surface.

In this case, the sensor is preferably installed at the tip of the spray gun 110 for more accurate distance measurement through the sensor.

This means that the quality of the paint surface when painting the hull 120 is the spray pressure (discharge pressure), paint tip size, type of paint, SVR, thinner ratio of the paint discharged (sprayed) through the spray gun 110 as well as the paint This is because the most variable fluctuations are caused by the operator's motion (trajectory of the spray gun), the distance between the spray gun and the hull, etc., so that this data can be quantified to achieve a consistent and uniform coating quality and film thickness regardless of the skill of the painter. .

In addition, in addition to the above factors, there may be various factors such as air temperature, temperature on the hull surface, and humidity, but the present invention only describes preferred embodiments for main factors only, and these are also described in the present invention if necessary. It can of course be quantified in such a way.

At this time, since the coating tip size, paint finish, SVR, thinner ratio, etc., such as the coating pressure of the paint is a predetermined value, the information on the motion of the paint worker to be acted as a variable, the distance between the spray gun and the hull may be determined by the aforementioned means, For example, it can be obtained through the camera 300 and the sensor.

To this end, first, the control panel 200 may include components as shown in FIG. 2.

In this case, the control panel 200 may be installed alone or in conjunction with a central control system (not shown) through wired or wireless communication means, wireless communication is preferred when using the communication means, for this control panel 200 may be further provided with a wireless transmission and reception unit connected to the control unit 210 (see FIG. 2) to be described later and communicating with the central control system.

For example, when the control panel 200 is used alone, it may be configured as shown in FIG.

That is, the distance information DB 220, the motion information DB 230, and the color thickness information DB 240 are connected to and controlled based on the control unit 210, which is a kind of microprocessor, and stores the coating quality information DB. In addition, a memory unit 250 used for temporary storage when inputting / outputting information of the DB, an operation unit 260 for calculating data, and a comparison analyzer 270 for comparing and analyzing data may be further provided. have.

In addition, a display unit 290 may be further provided to display a required value according to the control signal of the controller 210. The display unit 290 is preferably a monitor that is a screen display device. Accordingly, the display device may be a display device in which the operator can see the screen.

In addition, an input / output unit 280 having an input unit for updating data to various DBs or directly inputting necessary data or an operator to directly input a control command and an output unit for exporting necessary information to the outside may be further provided. .

Thus, by allowing the painter to perform the painting work based on the information displayed on the display unit 290, the painting quality can be maintained uniformly.

In this case, the voice output unit may be further configured in addition to the display unit 290 to allow the operator to work while listening to the voice signal in addition to the visual signal, thereby further reducing the work error and increasing the convenience of the work.

If the control panel 200 is provided with a wireless transmission and reception unit, such as an antenna, and is connected to the control unit 210 so that it can be modulated and demodulated, the central control system can be connected to the central control system through a short range wireless communication or an internet network or a PSTN network. It may be configured to automatically update the necessary DB information by communication, in the case of the present invention illustrated in the case of the present invention illustrated in the input and output unit 280 by taking the DB information output from the central control system through a portable memory device such as USB Each DB may be updated under the control signal of the control unit 210 through.

Here, the memory unit 250 is a plurality of specimens to test the coating material sprayed from the spray gun in any shape according to the distance between the specimen and the spray gun, and how the state of the painted surface Dozens of times to hundreds of experiments per each distance, averaged by each distance to store the coating quality information DB to database what constitutes the most uniform high-quality painted surface when showing the color, by paint type, SVR, thinner ratio It is preferable to database the color information according to the distance change for each star, discharge pressure, and paint tip size, and this operation also corresponds to the database of color information associated with the tracking information of the spray gun for all variables. do.

In this case, the databased information may be stored in a digitized state, or may be stored as it is in an image state expressed in color.

For example, an image containing color thickness information may be stored and managed directly in the memory unit 250. However, since there are many variables and a lot of variables, it may be inefficient if all DBs are provided for each, so that the color thickness information DB may be improved. It is preferable to have 240 separately, and only color thickness information for each variable is collected and stored in the color thickness information DB 240 and then managed, and in that case, various colors included in the color thickness information DB 240. It is natural that thickness information should have a one-to-one corresponding value for each variable by a specific code.

In addition, by tracking the coating state during the swing of the spray gun, that is, the trace of the spray gun, on the specimen described above, the coating state is compared with the swing width of the spray gun, and the color and thickness information is databased at this time. By storing it, it is used as important information when painting the hull.

In other words, through the test of specimens corresponding to various coating conditions, the test result is constructed as a painting quality information DB, and based on basic information such as the hull and color to be painted, spray pressure, coating tip size, and film thickness during painting construction By outputting and displaying the color information corresponding to the operator, the operator can work while viewing the displayed color thickness information, thereby realizing a painted surface having a more uniform quality.

In particular, in the case of coating film thickness, the color by thickness after coating film drying is compared to the color by thickness in the humidity film state, and by quantifying this, it is predicted how much thickness will be after drying the coating film only with color and thickness in the humidity film state. Since it becomes possible, the painter can adjust the thickness while looking at the color of the painted surface.

On the other hand, the plurality of cameras 300 may be installed in place of the vehicle (or gondola) 100 and the hull 120 to be taken so as to cross each other to track the swing, that is, the trajectory of the spray gun 110. It is preferred to be arranged so that.

The present invention made of such a configuration is to be utilized in the hull coating in the manner shown in FIG.

First, when the target hull to be painted is determined, the color to be painted, the thickness of the coating film per coating site, and the ejection jet pressure of the paint through the spray gun 110 are determined, the operator works with the vehicle (or gondola) 100. The spray gun 110 is lifted in position to begin painting work.

Then, a sensor (not shown) installed at the distal end of the spray gun 110, that is, the distance measuring sensor measures the distance from the hull 120, and the measured distance information is stored in the memory unit 250 (S100). .

Subsequently, the camera 300 captures and tracks the trajectory of the spray gun 110 according to the control signal of the controller 210, and the tracked information is stored in the memory 250 (S110).

Then, the measured distance information and motion information is transmitted to the control unit 210 of the control panel 200, and the received control unit 210 receives the color of the paint surface suitable for the distance information and motion information measured in the injection pressure And the thickness is extracted from the color thickness information DB 240 and the motion information DB 230 and stored in the memory unit 250 (S120).

Thereafter, the control unit 210 controls the operation unit 260 and the comparison analysis unit 270 to track the coating quality information DB stored in the memory unit 250 and the spray gun 110 and the distance between the hull 120. The information is analyzed and analyzed by an analysis program to determine the swing width and the swing angle of the spray gun 110 (S130).

Based on this information, the control unit 210 selects a standard color for each film thickness from the DB information drawn out and stored in the memory unit 250 (S140).

When the standard color and the film thickness are determined through the above process, the control unit 210 displays the standard color and the film thickness through the display unit 290, and the operator observes the standard color and the film thickness so as to match them. By coating the painted surface as shown in Figure 4 it is possible to maintain a uniform coating quality (S150).

In addition, by referring to the standard color of the humidity film according to the thickness of the coating film after drying the coating film in this manner, it is also possible to easily predict the humidity film thickness of the coating surface currently being coated, thereby utilizing the present invention can help to improve the coating quality.

Through such a method, the hull coating can be performed more uniformly, and the coating film thickness quality can be improved.

1 is an exemplary test photograph showing an example of use of the device according to the invention,

2 is a block diagram showing the main configuration of the apparatus according to the present invention;

3 is a flowchart showing a method according to the invention,

Figure 4 is an exemplary sample picture security painting work example using the device according to the present invention.

♧ description of the symbols for the main parts of the drawing ♧

100 .... high lift 110 ...... spray gun

120..Hull 200 .... Control panel

210..Control unit 220 .... Distance information DB

230 .... Motion Information DB 240 .... Color Thickness InformationDB

250..Memory Unit 260 .... Operation Unit

270 .... Comparative analysis section 280 .... I / O section

290 .... Display unit 300 .... Camera

Claims (7)

A coating quality information DB which tests the coating quality for various coating conditions to be installed on the hull and analyzes the numerical value and stores it as information; A plurality of cameras intersecting the hull paint van or gondola and the hull to track the trajectory of the spray gun; A sensor provided in the vehicle or gondola and installed at the distal end of the spray gun for spraying paint onto the hull and measuring a distance between the hull and the spray gun; Control unit consisting of a micro process installed in the vehicle or gondola, a distance information DB connected to the control unit and stored distance information between the spray gun and the hull, motion connected to the control unit and tracking the trajectory of the spray gun and stored it as information Color information DB, the color information or the film thickness information is stored one-to-one correspondence with the information DB, the coating quality information DB, the distance information DB, and the motion information DB, the coating quality information DB is stored in connection with the controller, A memory unit that uses the extracted information as a temporary storage space, an operation unit and a comparative analysis unit that calculates the information stored in the memory unit and selects a standard color or film thickness of the coating surface by comparing with the coating quality information DB, and the selected standard Including a control panel consisting of a display unit for displaying the color or film thickness to the operator Hull coating uniformly coated with the non-contact film thickness measuring apparatus, characterized in that. The method of claim 1, further comprising: The control unit is a hull coating uniform coating and non-contact coating film thickness measuring apparatus, characterized in that the input and output unit is further provided to connect an external memory for updating the data of the DB or to directly input a control signal. The method of claim 1, further comprising: The control unit further comprises a voice output unit for outputting the information output to the display as a voice, hull coating uniform coating and non-contact coating film thickness measuring apparatus. The method of claim 1, further comprising: And the display unit is a monitor or an operator wearable display device. The method of claim 1, further comprising: The control unit is a hull coating uniform coating and non-contact coating film thickness measuring apparatus further comprises a radio transmission and reception unit capable of communicating wirelessly to communicate with the central control system to update the data of the DBs in a wireless communication method. A first step in which a painting operation is started in a state in which basic painting conditions for a painting target hull are set, and a sensor installed at the tip of the spray gun measures the distance between the hull and the spray gun; A second step in which the distance information measured in the first step is transmitted to the control unit, and the control unit controls the camera to store tracking information obtained by photographing the traces of the painter and the spray gun in the memory unit; After the second step, the control unit is a third step of extracting the color and thickness of the paint surface suitable for the distance information and motion information measured in the injection pressure from the color thickness information DB and the motion information DB to store in the memory unit; After the third step, the control unit controls the operation unit to calculate the swing information of the spray gun after analyzing the distance information of the hull and the spray gun tracking information stored in the memory unit with an analysis program; A fifth step of selecting a dry film thickness in a standard color and humidity film state for each film thickness from the coating quality information DB stored in the memory unit based on the information determined after the fourth step; And a sixth step in which the standard color and the coating film thickness selected in the fifth step are displayed on the display unit under the control of the control unit. The method of claim 6; In the sixth step, the contents displayed on the display unit is displayed on the screen and output as a voice at the same time hull coating uniform coating and non-contact coating film thickness measuring method.

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