JP2019155315A - Coating system and coating method - Google Patents

Abstract

To provide a coating system and a coating method for keeping a coating quality constant, by stabilizing the mixture ratio of a solvent to paint in coating mixed paint.SOLUTION: In a coating system 1 and a coating method for coating mixed paint of adjusting its temperature by a coating device 60 by adjusting the temperature of the mixed paint formed by a mixer 30 by a temperature adjusting device 40 by mixing paint and a solvent by the mixer 30, a kind of paint is inputted to an input device 10, and a combination of a target input quantity of a solvent to the paint of a reference quantity and the target temperature of the mixed paint is selected by a control device 20 based on a kind of the paint inputted to the input device 10. Control is executed for maintaining viscosity of the mixed paint coated by a coating device 60 to preset target viscosity by the control device 20 in response to its selected combination.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a painting system and a painting method, and more particularly, to a painting system and a painting method for keeping the painting quality constant.

  2. Description of the Related Art Conventionally, in paints for automobiles and ships, a mixed paint supply apparatus that forms a mixed paint by mixing a paint with a solvent for diluting the paint and supplies the formed mixed paint to an application device has been proposed (for example, Patent Document 1). In the mixed paint supply apparatus described in Patent Document 1, the temperature and viscosity of the mixed paint (diluted paint) circulating in the circulation pipe are measured with a thermometer and a viscosity sensor, respectively, and according to changes in the temperature and viscosity of the mixed paint. By adjusting the blending ratio and replenishment amount of the solvent (thinner), the mixed paint is adjusted to a viscosity suitable for painting.

JP-A-6-277574

  By the way, since solvents such as thinner and water used for dilution of paint volatilize after being applied, depending on the mixing ratio of the solvent to the paint, the thickness of the coating film immediately after applying the mixed paint and after the solvent volatilizes The difference with the thickness of the coating changes. In the mixed paint supply apparatus described in Patent Document 1, the solvent mixing ratio and replenishment amount are sequentially changed according to changes in the temperature and viscosity of the mixed paint. Occurs. If the mixing ratio of the solvent in the mixed paint varies, the difference between the thickness of the paint film immediately after the mixed paint is applied and the thickness of the paint film after the solvent is volatilized is not uniform, and the paint thickness is controlled. Becomes difficult. Therefore, in the mixed paint supply apparatus described in Patent Document 1, it is difficult to keep the coating quality constant.

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a coating system and a coating method for stabilizing the mixing ratio of the solvent with respect to the paint in the mixed paint to be applied and keeping the paint quality constant. There is.

  In order to achieve the above object, the coating system of the present invention includes a mixing device for mixing paint and a solvent for diluting the coating material, and a temperature adjusting device for adjusting the temperature of the mixed coating material formed by the mixing device. A coating system comprising: an application device that applies the mixed paint whose temperature is adjusted by the temperature adjustment device, an input device for inputting the type of the paint, and a control device connected to the input device In this control device, a combination of a target amount of the solvent with respect to a reference amount of the paint and a target temperature of the mixed paint is preset for each type of the paint, and the type of the paint is input to the input device. Is input by the control device, the combination corresponding to the input paint type is selected and applied from the coating device according to the selected combination. Characterized in that the control for maintaining the preset target viscosity the viscosity of the coating mix that was configured to be performed.

  In the coating method of the present invention for achieving the above object, the paint and the solvent for diluting the paint are mixed in the mixing device, the temperature of the mixed paint formed in the mixing device is adjusted by the temperature control device, A coating method in which the mixed paint whose temperature is adjusted is applied by an application device, and before the paint and the solvent are mixed, the type of the paint is input to the input device and is input to the input device. Based on the type of the paint, the control device selects a combination of a target amount of the solvent for the reference amount of the paint and a target temperature of the mixed paint, and according to the selected combination, the combination in the mixing device By mixing the paint and the solvent and adjusting the temperature of the mixed paint in the temperature adjusting device, the viscosity of the mixed paint applied from the coating device is preliminarily determined. Characterized in that it is maintained in the set target viscosity.

  According to the present invention, when the type of paint is input to the input device, a combination of the target input amount of the solvent with respect to the reference amount of paint and the target temperature of the mixed paint is determined by the control device according to the input paint type. Selected. Then, according to the selected combination of the target input amount and the target temperature, the control device performs control to maintain the viscosity of the mixed paint applied from the application device at a preset target viscosity, thereby controlling the paint. The mixed paint can be applied at a target viscosity suitable for painting while keeping the mixing ratio of the solvent constant. This makes it possible to apply a mixed paint with a stable mixing ratio of the solvent to the paint, so that the difference between the thickness of the paint film immediately after coating and the thickness of the paint film after evaporation of the solvent can be made uniform. And the coating quality can be kept constant.

It is explanatory drawing which shows typically the coating system of embodiment which concerns on this invention by a side view. It is AA arrow sectional drawing of FIG. It is a B arrow line view of FIG. It is explanatory drawing which illustrates the database memorize | stored in a control apparatus. FIG. 5 is a flowchart illustrating a control flow of the control device of the painting system in FIG. 1, FIG. 5A is a flowchart for explaining control related to mixing work by the control device, and FIG. It is a flowchart for demonstrating control of the temperature control apparatus by a control apparatus.

  Hereinafter, the coating system and the coating method of the present invention will be described based on the embodiments shown in the drawings.

  As illustrated in FIG. 1, a coating system 1 according to an embodiment of the present invention includes a mixing device 30 that mixes a coating material and a solvent that dilutes the coating material, and a temperature that adjusts the temperature of the mixed coating material formed by the mixing device 30. An adjustment device 40 and an application device 60 that applies the mixed paint whose temperature is adjusted by the temperature adjustment device 40 are provided. The painting system 1 further includes an input device 10 for inputting the type of paint and a control device 20 connected to the input device 10. The mixing device 30, the temperature control device 40, and the coating device 60 are connected by piping such as a hose through which the mixed paint flows. In addition, in FIG. 1, the inside of the mixing apparatus 30 and the temperature control apparatus 40 is visualized and shown.

  The coating system 1 further displays a first temperature sensor 50 that is installed in the coating apparatus 60 and detects the temperature of the mixed paint, a mixed information display device 33 that displays information related to the mixing operation, and information related to temperature management. A temperature information display device 46 and an application information display device 64 for displaying information relating to the application work are provided. The temperature control device 40, the first temperature sensor 50, the mixing information display device 33, the temperature information display device 46, and the application information display device 64 are each connected to the control device 20 in a communicable manner.

  The mixing device 30 includes a mixing tank 31 provided with a mixer 32. The mixing information display device 33 is installed in the vicinity of the mixing device 30. The mixed information display device 33 is composed of, for example, a liquid crystal display or an electric bulletin board.

  The coating device 60 includes a spraying device 61 that sprays the mixed paint, and a feeding device 63 that feeds the mixed paint formed by the mixing device 30 to the spraying device 61. Examples of the spraying device 61 include a spray gun. An example of the feeding device 63 is an airless coating machine. The coating apparatus 60 of this embodiment has a plurality of nozzle chips 62 that are detachable from the spraying device 61 and have different coating patterns. By changing the type of the nozzle tip 62 attached to the tip of the spraying device 61, the width and range of spraying the mixed paint, the discharge amount per unit time, the discharge pressure, and the like can be changed.

  The application information display device 64 of this embodiment is composed of a portable information terminal, and is configured such that a worker who performs the application operation can carry the application information display device 64 to the site where painting is performed. Examples of portable information terminals that form the application information display device 64 include smartphones and tablet terminals. In addition, the application information display device 64 may be configured by a liquid crystal display, an electric bulletin board, or the like, and the application information display device 64 may be installed in the vicinity of the site where painting is performed.

  As illustrated in FIG. 1, in the coating system 1, a temperature adjustment device 40 is provided between a feeding device 63 and a spraying device 61 that constitute the coating device 60. The mixing tank 31 constituting the mixing device 30 and the suction port of the feeding device 63 are connected by a pipe, and the discharge port of the feeding device 63 and the inlet of the temperature control device 40 are connected by a pipe. The outlet and the spraying device 61 are connected by piping. When the spraying device 61 is operated, the mixed paint is sucked up from the mixing tank 31 by the feeding device 63, and the sucked mixed paint passes through the temperature adjusting device 40, thereby adjusting the temperature of the mixed paint. The mixed paint whose temperature is adjusted by the temperature adjusting device 40 is fed to the spraying device 61 and discharged from the tip of the nozzle tip 62.

  As illustrated in FIG. 2, the temperature adjustment device 40 includes a sealed container 41, a heat medium 42 filled in the sealed container 41, a heating device 43 that heats the heat medium 42, and the sealed container 41. A tubular member 44 passing through the inside and a stirring device 45 that stirs the heat medium 42 are included.

  In this embodiment, a rectangular parallelepiped sealed container 41 is filled with oil as the heat medium 42. The heat medium 42 filled in the sealed container 41 is preferably oil excellent in heat retention and heat exchange rate, but as the heat medium 42, a liquid other than oil such as water or a gas such as water vapor may be employed. it can. The tubular member 44 constitutes a part of a pipe through which the mixed paint flows. The tubular member 44 may be formed of a metal having high thermal conductivity such as stainless steel or copper.

  In this embodiment, a rod-shaped heater is inserted in the central portion of the sealed container 41 as the heating device 43. The rod-shaped heater extends in the longitudinal direction of the sealed container 41. The tubular member 44 is formed in a spiral shape so as to go around the outside of the rod-shaped heater. The spiral tubular member 44 is arranged at the center position of the sealed container 41 so as to extend in the longitudinal direction of the sealed container 41. The end of the pipe connected to the discharge port of the feeding device 63 is detachably connected to one end of the tubular member 44, and the pipe connected to the spraying device 61 is connected to the other end of the tubular member 44. The rear end is detachably connected.

  The temperature adjusting device 40 indirectly heats the mixed paint flowing inside the tubular member 44 by heating the heat medium 42 with the heating device 43 while stirring the heat medium 42 with the stirring device 45. It is configured. The temperature adjusting device 40 can adjust the mixed paint to an arbitrary temperature by adjusting the output (the heating temperature of the heating device 43). In this temperature adjusting device 40, the heat medium 42 in the sealed container 41 can be made to have a substantially uniform temperature distribution by stirring the heat medium 42 by the stirring device 45, and the mixed paint flowing through the tubular member 44 is not evenly distributed. Can be warmed.

  As illustrated in FIGS. 1 and 3, in this embodiment, a gantry 80 having a plurality of legs 82 and a top plate 81 is installed on the floor, and the temperature is adjusted on the top plate 81. A device 40 is installed. And the feeding apparatus 63 is installed under the top plate 81 in which the temperature control apparatus 40 is installed.

  The temperature information display device 46 is installed in the vicinity of the temperature adjustment device 40. The temperature information display device 46 is composed of, for example, a liquid crystal display or an electric bulletin board. In this embodiment, the temperature information display device 46 is attached to the gantry 80.

  As illustrated in FIG. 1, the first temperature sensor 50 is attached to a root portion of a spraying device 61 to which piping is connected, and is applied from the coating device 60 (spraying device 61) by the first temperature sensor 50. The temperature of the immediately previous mixed paint is detected. In this embodiment, the viscosity sensor 70 is further attached to the root portion of the spraying device 61 to which the pipe is connected, and the viscosity of the mixed paint immediately before being applied from the coating device 60 is detected by the viscosity sensor 70. It has become. In this embodiment, the first temperature sensor 50 and the viscosity sensor 70 are attached to the spraying device 61. However, the first temperature sensor 50 and the viscosity sensor 70 may be attached to a pipe connected to the spraying device 61. .

  In the coating system 1, the second temperature for detecting the temperature of the mixed paint immediately after being heated by the temperature adjusting device 40 in the vicinity of the temperature adjusting device 40 in the pipe connecting the temperature adjusting device 40 and the spraying device 61. A sensor 71 is attached. In addition, a third temperature sensor 72 that detects the temperature of the heat medium 42 is attached to the temperature adjustment device 40. The first temperature sensor 50, the viscosity sensor 70, the second temperature sensor 71, and the third temperature sensor 72 are connected to the temperature information display device 46 so as to communicate with each other.

  The control device 20 includes various computers having a CPU, a memory, a storage medium, an input unit, and an output unit. In the control device 20, a combination of the target amount of the solvent to be supplied with respect to the reference amount of paint and the target temperature of the mixed paint in which the mixed paint has a preset target viscosity is preset for each type of paint.

  In the control device 20 of this embodiment, in addition to the above-described target input amount of the solvent and the target temperature of the mixed paint, the solvent type and the coating pattern corresponding to the type of paint are previously stored for each type of paint. Is set. In this embodiment, the nozzle chip type suitable for the paint is set as the application pattern corresponding to the paint type. That is, as illustrated in FIG. 4, the control device 20 of this embodiment includes, for each type of paint, “type of paint”, “type of solvent”, “target viscosity of mixed paint”, “reference amount”. A database in which “target input amount of solvent for paint”, “target temperature of mixed paint”, and “application pattern corresponding to paint type (type of nozzle chip 62)” is stored in advance.

  The type of paint stored in the control device 20 is stored, for example, as character information that can distinguish the type of paint, such as the product number of the paint, the coating object that uses the paint, and the presence or absence of quick drying. Similarly, the type of solvent and the type of nozzle tip 62 are stored in the control device 20 as character information or the like that can distinguish the type of solvent and the type of nozzle tip 62, respectively. Examples of the solvent include thinner and water. The target viscosity of the mixed paint, the target input amount of the solvent with respect to the reference amount of paint, and the target temperature of the mixed paint are respectively stored in the control device 20 as numerical information.

  Use the value recommended by the paint manufacturer for the target viscosity of the mixed paint. As the type of solvent, the type of solvent recommended by the paint manufacturer may be adopted, or other solvent types may be set by conducting a blending test or the like in advance. The target input amount of the solvent with respect to the reference amount of paint and the target temperature of the mixed paint can be set by conducting a blending test of the paint and the solvent in advance based on the set target viscosity of the mixed paint. An application pattern (type of nozzle tip 62) suitable for the paint can be set by conducting a coating test or the like in advance.

  The combination of the target input amount of the solvent and the target temperature of the mixed paint with respect to the reference amount of paint in which the mixed paint has the target viscosity is not one way, but the target input amount of the solvent stored in the control device 20 and the target temperature of the mixed paint In the combination of the above, the target temperature of the mixed paint is set to a temperature that is within a permissible temperature of the paint use condition, and a temperature at which the viscosity of the paint does not change even if the paint is heated to a temperature exceeding the target temperature. The target input amount of the solvent may be set to the input amount of the solvent determined based on the target temperature of the temperature serving as the threshold and the target viscosity of the mixed paint.

  By setting the target temperature of the mixed paint within the allowable temperature of the paint use conditions, it is possible to avoid deterioration of the quality of the mixed paint. In a general paint, when the temperature of the paint is increased, the viscosity continues to decrease to a predetermined temperature, and when the temperature exceeds the predetermined temperature, the viscosity of the paint does not change. Therefore, by setting the target temperature to a temperature at which the viscosity of the paint does not change even when the temperature of the paint is raised, the target amount of the solvent for making the mixed paint the target viscosity can be minimized. it can. This is advantageous for reducing the amount of solvent used. In addition, since the mixing ratio of the solvent to the paint can be reduced, the difference between the thickness of the coating film immediately after coating and the thickness of the coating film after the solvent has evaporated can be reduced, and the coating thickness can be controlled. It becomes easy.

  The input device 10 includes an input unit such as a touch panel and a keyboard, and a display unit such as a liquid crystal display and an electric bulletin board. The input device 10 of this embodiment is configured by a touch panel display, and the choices of paint types stored in the control device 20 are displayed in a row on the display unit of the input device 10. Yes. And it becomes the structure which completes the input of the kind of paint by touching and selecting the display part of the kind of paint used for painting from a plurality of choices displayed on the display part of the input device 10. ing. The input device 10 may be configured to input the type of paint as character information using a keyboard or the like.

  In this coating system 1, when a type of paint is input to the input device 10, a reference amount corresponding to the type of paint input to the input device 10 from a database stored in advance by the control device 20. A combination of the target amount of solvent applied to the paint and the target temperature of the mixed paint is selected. Then, the control device 20 controls the viscosity of the mixed paint applied from the coating device 60 to a preset target viscosity according to the combination of the selected target amount of the solvent and the target temperature of the mixed paint. Is configured to be performed.

  In the coating system 1 of this embodiment, when the type of paint is further input to the input device 10, the above-mentioned target amount of solvent and the target of mixed paint are stored from the database stored in advance by the control device 20. A combination including the target viscosity of the mixed paint, the type of the solvent, and the type of the nozzle tip 62 is selected along with the temperature.

  In this coating system 1, when a combination corresponding to the type of paint is selected by the control device 20, as a part of control for maintaining the viscosity of the mixed paint described above at a preset target viscosity, the control device 20 Control that displays at least one of the combination of the target amount of the selected solvent and the target temperature of the mixed paint on the display device (for example, the mixing information display device 33), and instructs the work according to the selected combination. I do. Specifically, in this embodiment, the control device 20 mixes the paint type input to the input device 10 with the solvent type in the selected combination and the target input amount of the solvent with respect to the reference amount of paint. Control to display on the information display device 33 is performed.

  Further, in the coating system 1, when a combination corresponding to the type of paint is selected by the control device 20, the first temperature sensor 50 is used as part of the control for maintaining the viscosity of the mixed paint at a preset target viscosity. Based on the difference between the detected temperature of the mixed paint and the target temperature of the selected mixed paint, control for adjusting the output of the temperature adjusting device 40 is performed. Then, by controlling the temperature adjusting device 40 by the control device 20, the temperature of the mixed paint applied from the coating device 60 is adjusted to the target temperature of the mixed paint in the combination selected by the control device 20. It has become.

  In the coating system 1 of this embodiment, when a combination corresponding to the type of paint is selected by the control device 20, the target temperature of the mixed paint and the target viscosity of the mixed paint in the selected combination are controlled by the control device 20. To the temperature information display device 46. Furthermore, the detection information detected by the first temperature sensor 50, the viscosity sensor 70, the second temperature sensor 71, and the third temperature sensor 72 is sequentially input to the temperature information display device 46. Then, the input target temperature of the mixed paint, the target viscosity of the mixed paint, the temperature of the mixed paint immediately before application (the temperature detected by the first temperature sensor 50), and the viscosity (viscosity) of the mixed paint immediately before application. The viscosity detected by the sensor 70), the temperature of the mixed paint immediately after being heated by the temperature adjusting device 40 (the temperature detected by the second temperature sensor 71), and the temperature of the heat medium 42 of the temperature adjusting device 40 (first). The temperature detected by the three temperature sensor 72) is displayed on the temperature information display device 46.

  Further, when a combination corresponding to the type of paint is selected by the control device 20, an application pattern in the selected combination is input from the control device 20 to the application information display device 64, and the input application pattern is applied to the application information. The display device 64 is configured to be displayed. In this embodiment, the type of the nozzle chip 62 is displayed on the application information display device 64 as an application pattern.

  As illustrated in FIG. 3, in the coating system 1 of this embodiment, the mixing device 30, the temperature adjustment device 40, the coating device 60, the mixing information display device 33, A plurality of units each including a temperature information display device 46 and a coating information display device 64 are connected. A set of the input device 10 and the control device 20 can control a plurality of the aforementioned units.

  That is, by inputting the type of paint used in each unit to the input device 10, the control device 20 selects a combination of a target input amount and a target temperature corresponding to the type of paint for each unit. . Then, according to the selected combination, the control device 20 controls each unit to maintain the viscosity of the mixed paint applied from the coating device 60 at a preset target viscosity. ing.

  In this embodiment, a warning device 90 that issues a warning by light or sound when a problem occurs in the temperature adjustment device 40 is installed in the vicinity of the temperature adjustment device 40 constituting each unit. The warning device 90 includes the target temperature of the mixed paint input from the control device 20 to the temperature information display device 46, and the mixed paint immediately before application, which is sequentially input from the first temperature sensor 50 to the temperature information display device 46. When a temperature difference larger than a preset allowable temperature difference occurs between the temperature and the temperature, a warning is issued. The warning device 90 also includes the target viscosity of the mixed paint input from the control device 20 to the temperature information display device 46, and the viscosity of the mixed paint immediately before application, which is sequentially input from the viscosity sensor 70 to the temperature information display device 46. When a viscosity difference larger than a preset allowable viscosity difference occurs, a warning is issued.

  Next, the coating method using this coating system 1 is demonstrated with reference to the flowchart illustrated in FIG.

  As illustrated in FIG. 5A, first, the worker inputs the type of paint used for painting into the input device 10 (step S10). When the type of paint is input to the input device 10, the control device 20 sets a combination of the target amount of the solvent and the target temperature of the mixed paint for the reference amount of paint corresponding to the type of paint input to the input device 10. Selected (step S20). In this embodiment, in step S20, the solvent type corresponding to the type of paint input to the input device 10, the target viscosity of the mixed paint, and the application pattern are included, together with the target input amount of the solvent and the target temperature of the mixed paint. A combination is selected.

  When a combination corresponding to the type of paint is selected by the control device 20, the control device 20 maintains the viscosity of the mixed paint applied from the coating device 60 at a preset target viscosity according to the selected combination. (Step S30 and steps S41 to S43).

  In this embodiment, as part of the control for maintaining the viscosity of the mixed paint described above at a preset target viscosity, the type of paint input to the input device 10, the type of solvent selected by the control device 20, and Control is performed to display the target input amount of the solvent for the reference amount of paint on the mixing information display device 33 (step S30).

  Then, based on the work instructions displayed on the mixing information display device 33 (the type of paint, the type of solvent, and the target input amount of the solvent with respect to the reference amount of paint), the worker in charge of the mixing work performs the mixing tank 31. The paint and the solvent are respectively added to the mixture, and the paint and the solvent are mixed by the mixer 32 provided in the mixing tank 31. As a result, a mixed coating material is formed in which the input amount of the solvent with respect to the reference amount of coating material is adjusted to the target input amount of the selected combination.

  Further, in this embodiment, when a combination is selected by the control device 20, the application pattern in the selected combination is input from the control device 20 to the application information display device 64, and the input application pattern is displayed as an application information display. It is displayed on the device 64. In this embodiment, the type of the nozzle chip 62 is displayed as the application pattern. The nozzles 62 corresponding to the types of the nozzle tips 62 displayed on the application information display device 64 are attached to the spraying device 61 by the worker in charge of the painting operation, so that the nozzles suitable for the type of paint to be used The chip 62 is attached to the spraying device 61.

  Then, when applying the mixed paint by the coating device 60, as shown in FIG. 5B, as a part of the control for maintaining the viscosity of the mixed paint at the preset target viscosity, as shown in FIG. When the target temperature of the mixed paint is selected by 20, the control for adjusting the output of the temperature adjusting device 40 is performed based on the difference between the temperature Tx of the mixed paint and the target temperature Ta detected by the first temperature sensor 50. (Steps S41 to S43). Then, by controlling the temperature adjusting device 40 by the control device 20, the temperature of the mixed paint applied by the coating device 60 is adjusted to the target temperature of the combination selected by the control device 20.

  More specifically, in the control of the temperature adjusting device 40 by the control device 20, first, the temperature Tx of the mixed paint is detected by the first temperature sensor 50 (step S41). Next, it is determined whether or not the difference between the temperature Tx detected by the first temperature sensor 50 and the target temperature Ta of the combination paint combination selected by the control device 20 is 0 (step S42).

  When the difference between the temperature Tx detected by the first temperature sensor 50 and the target temperature Ta is not 0, that is, when the temperature Tx detected by the first temperature sensor 50 and the target temperature Ta do not match, The output of the temperature adjusting device 40 is adjusted by the control device 20 so that the temperature Tx detected by the one temperature sensor 50 approaches the target temperature Ta (step S43). Specifically, when the temperature Tx detected by the first temperature sensor 50 is lower than the target temperature Ta, the control device 20 performs control to increase the heating temperature of the heating device 43 constituting the temperature adjustment device 40. Is called. Conversely, when the temperature Tx detected by the first temperature sensor 50 is higher than the target temperature Ta, the control device 20 performs control to lower the heating temperature of the heating device 43. And after adjusting the output of the temperature control apparatus 40, it returns to step S41 again.

  On the other hand, in step S42, when the difference between the temperature Tx detected by the first temperature sensor 50 and the target temperature Ta is 0, that is, the temperature Tx detected by the first temperature sensor 50 matches the target temperature Ta. In that case, the process returns to step S41 again without changing the output of the temperature control device 40.

  The control from step S41 to step S43 is continuously repeated by the control device 20, so that the temperature of the mixed paint applied from the coating device 60 is maintained at the target temperature Ta of the selected combination. The And the coating material is coated by apply | coating the mixed paint adjusted to target temperature Ta with the temperature control apparatus 40 with the spraying apparatus 61 of the coating device 60. FIG.

  In this embodiment, when a combination corresponding to the type of paint is selected by the control device 20, the target temperature of the mixed paint, the target viscosity of the mixed paint, the mixed paint immediately before application is displayed on the temperature information display device 46. (The temperature detected by the first temperature sensor 50), the viscosity of the mixed paint immediately before application (viscosity detected by the viscosity sensor 70), the temperature of the mixed paint immediately after being heated by the temperature adjusting device 40 (Temperature detected by the second temperature sensor 71) and the temperature of the heat medium 42 of the temperature control device 40 (temperature detected by the third temperature sensor 72) are displayed.

  An operator in charge of management of the temperature adjustment device 40 compares the target temperature of the mixed paint displayed on the temperature information display device 46 with the temperature detected by the first temperature sensor 50, so that the temperature adjustment device 40. It is possible to check whether the mixed paint immediately before being applied is properly adjusted to the target temperature. Further, by comparing the target viscosity of the mixed paint displayed on the temperature information display device 46 with the viscosity detected by the viscosity sensor 70, it is determined whether or not the mixed paint immediately before application is the target viscosity. Can be checked. Further, the temperature controller 40 confirms the temperature of the mixed paint immediately after being heated by the temperature controller 40 and the temperature of the heat medium 42 of the temperature controller 40 displayed on the temperature information display device 46. It is possible to check whether it is operating normally. When it is determined from the data input to the temperature information display device 46 that a problem has occurred in the temperature control device 40, a warning is issued by the warning device 90 installed in the vicinity of the temperature control device 40. It is also possible to prevent oversight of the malfunction of the device 40.

  Thus, according to the present invention, when the type of paint is input to the input device 10, the control device 20 causes the target amount of solvent to be added to the reference amount of paint and the mixed paint according to the type of paint input. A combination with the target temperature is selected. Then, in accordance with the combination of the selected target amount of the solvent selected and the target temperature of the mixed paint, the control device 20 maintains the viscosity of the mixed paint applied from the coating device 60 at a preset target viscosity. As a result, the mixed paint can be applied at a target viscosity suitable for coating while the mixing ratio of the solvent to the paint is kept constant.

  This makes it possible to apply a mixed paint with a stable mixing ratio of the solvent to the paint, so that the difference between the thickness of the paint film immediately after coating and the thickness of the paint film after evaporation of the solvent can be made uniform. And the coating quality can be kept constant. Further, just by inputting the type of paint to the input device 10, the control device 20 selects a combination of the target amount of the solvent and the target temperature of the mixed paint for the reference amount of paint suitable for using the paint. Since the control is performed to maintain the viscosity of the mixed paint at a preset target viscosity, the coating quality can be kept constant at a high level regardless of the skill level of the worker.

  Furthermore, as in this embodiment, as part of the control that includes the mixing information display device 33 and maintains the viscosity of the mixed paint at a preset target viscosity, the controller 20 applies the selected reference amount to the paint. If the control system is configured to display at least one of the combination of the target amount of the solvent and the target temperature of the mixed paint on the display device and instruct the operation according to the combination, the coating system 1 can be made inexpensively with simple equipment. Can be built.

  In this embodiment, the mixture information display device 33 displays the type of paint input to the input device 10 and the target input amount of the solvent for the reference amount of paint in the combination selected by the control device 20. The paint and solvent can be mixed at a mixing ratio suitable for achieving the target viscosity regardless of the skill level of the worker.

  In this embodiment, the adjustment of the heating temperature of the heating device 43 is automatically controlled. For example, even when the temperature adjustment device 40 is not automatically controlled, the temperature information display device 46 is controlled by the control device 20. If the control for displaying the target temperature of the selected mixed paint and the detection data of the first temperature sensor is performed, the worker can observe the display of the temperature information display device 46 and the target temperature of the mixed paint and the first temperature sensor. By manually adjusting the heating temperature of the heating device 43 so as to match the detected data, the mixed paint applied from the coating device 60 can be maintained at the target temperature.

  When the temperature at the coating site is low, or when the piping connecting the temperature control device 40 and the spraying device 61 is long, the temperature of the mixed paint immediately after being heated by the temperature control device 40 and the coating device 60 are applied. There is a temperature difference between the temperature of the mixed paint. However, as in this embodiment, the first temperature sensor 50 that detects the temperature of the mixed paint immediately before being applied from the coating device 60 is provided, and a control for maintaining the viscosity of the mixed paint at a preset target viscosity is provided. As a part, when the control is performed to adjust the output of the temperature adjusting device 40 based on the difference between the temperature of the mixed paint detected by the first temperature sensor 50 and the target temperature, the temperature at the coating site and the temperature adjusting device 40 are controlled. The mixed paint applied from the coating device 60 can be accurately maintained at the target temperature regardless of the length of the pipe connecting the spray device 61 and the spray device 61. Thereby, the viscosity of the mixed paint applied by the coating device 60 can be accurately maintained at the target viscosity, which is advantageous for keeping the coating quality constant.

  As in this embodiment, when the type of paint is input to the input device 10, the control device 20 selects an application pattern corresponding to the input type of paint, and the mixed paint is selected using the selected application pattern. If the control for instructing the operation of applying the coating is performed, the coating pattern can be unified for each type of paint, which is advantageous for keeping the coating quality constant.

  As in this embodiment, when the coating apparatus 60 has a plurality of types of nozzle chips 62, the nozzle chip 62 corresponding to the type of paint input to the input device 10 is displayed on the coating information display device 64. By displaying the type, the worker in charge of the painting work can easily grasp the nozzle tip 62 suitable for the paint to be used regardless of the skill level.

  In the case of the coating apparatus 60 that changes the coating pattern by operating a dial or the like provided in the spraying device 61, an operation instruction for the dial or the like is set in advance as the coating pattern in the control device 20, and the coating information display device 64 is set. Furthermore, by displaying an operation instruction such as a dial corresponding to the type of paint input to the input device 10, it is possible to unify the application pattern for each type of paint.

  Although the temperature control device 40 can be provided between the mixing tank 31 and the feeding device 63, the mixing immediately after heating by the temperature control device 40 is increased as the distance from the temperature control device 40 to the spraying device 61 increases. The temperature difference between the temperature of the paint and the temperature of the mixed paint immediately before being applied by the application device 60 becomes large. Therefore, it is necessary to set the heating temperature of the mixed paint in the temperature adjusting device 40 higher than the selected target temperature, and accordingly, the energy consumption of the temperature adjusting device 40 increases.

  Therefore, it is preferable to provide the temperature adjusting device 40 between the feeding device 63 and the spraying device 61 as in this embodiment. By providing the temperature control device 40 between the feeding device 63 and the spraying device 61, the distance between the spraying device 61 and the temperature control device 40 can be reduced, and the mixed paint passes through the temperature control device 40. Then, the temperature change of the mixed paint from application to application can be reduced. Therefore, it is advantageous to keep the energy consumption of the temperature control device 40 low.

  In the case of a painting site using a plurality of types of solvents, it is desirable to include the type of solvent in the database stored in the control device 20 as in this embodiment, but the painting site uses only one type of solvent. In this case, the database stored in the control device 20 may not include the type of solvent.

  In addition, in a painting site that uses a plurality of coating patterns, it is desirable to include the coating pattern in the database. However, if the coating device 60 is a painting site that uses only one type of coating pattern, the controller 20 A configuration in which the application pattern is not included in the stored database can also be adopted.

  In the embodiment illustrated in FIGS. 1 to 4, as part of the control for maintaining the viscosity of the mixed paint at a preset target viscosity, the type of paint input to the input device 10 on the mixing information display device 33, and The type of the solvent in the combination selected by the control device 20 and the target input amount of the solvent with respect to the reference amount of paint are displayed, but the control of maintaining the viscosity of the mixed paint at a preset target viscosity is performed. As a part, by controlling the mixing device 30 by the control device 20, it is also possible to automatically adjust the input amount of the solvent with respect to the reference amount of paint.

  Specifically, in this case, the mixing device 30 includes a paint tank in which paint is stored, a solvent tank in which solvent is stored, a paint pump connected to the paint tank, and a solvent tank. A solvent pump connected to the paint tank, a paint supplied from the paint tank by the paint pump, and a mixing tank for mixing the solvent supplied from the solvent tank by the solvent pump.

  Then, as part of the control for maintaining the viscosity of the mixed paint at a preset target viscosity, the control device 20 performs control for displaying the type of paint and the type of molten material in the selected combination on the mixed information display device 33. And the supply amount of the paint by the paint pump and the solvent pump so that the input amount of the solvent with respect to the reference amount of the paint in the mixing tank 31 becomes the target input amount of the solvent in the combination selected by the control device 20. Control to adjust the amount of solvent supplied.

  With the above-described configuration, the mixing ratio of the solvent to the paint is automatically adjusted by the control device 20 simply by putting the paint and solvent displayed on the mixing information display device 33 into the paint tank and the solvent tank, respectively. Therefore, it is possible to reduce the labor of workers in charge of mixing work. Further, even while the mixed paint is being applied by the coating device 60, the mixed paint can be continuously formed by replenishing the paint tank and the solvent tank with the paint and the solvent, respectively. Therefore, even when the amount of the mixed paint used is large, the painting work can be performed efficiently without interrupting the painting work.

  In the embodiment illustrated in FIGS. 1 to 5, as a preferred embodiment, the temperature adjustment device 40 having a configuration including the sealed container 41, the heat medium 42, the heating device 43, the tubular member 44, and the stirring device 45 is illustrated. However, the temperature control device 40 may have other configurations. Specifically, for example, the temperature adjusting device 40 can be attached to the mixing tank 31 and the mixed paint stored in the mixing tank 31 can be heated by the temperature adjusting device 40.

  Moreover, in embodiment shown in FIGS. 1-5, the display apparatus 33 which displays the information regarding a mixing operation | work, the display apparatus 46 which displays the information regarding temperature management, and the display apparatus 64 which displays the information regarding an application | coating operation | work respectively Although the case where it comprises with a different display apparatus was illustrated, it can also be set as the structure which displays any two or all of the information regarding a mixing operation | work, the information regarding temperature control, and the information regarding an application | coating operation | work on the same display apparatus.

  Moreover, in embodiment illustrated in FIGS. 1-5, when the kind of coating material is input into the input device 10, the control apparatus 20 will select the application pattern (type of the nozzle chip 62) corresponding to the coating material type, The application pattern is controlled to be displayed on the application information display device 64. However, a plurality of application patterns corresponding to the type of paint can be selected for one type of paint. . In addition to the type of paint, the type of object to be painted (for example, inside a ship's outer plate or a ballast tank) and the degree of rushing painting (for example, options such as the time reduction mode or normal mode) are input to the input device 10 Then, the control device 20 selects a coating pattern that meets the added condition from among a plurality of coating patterns corresponding to the type of paint, and performs control to display the coating pattern on the coating information display device 64. It can also be.

  Moreover, in embodiment illustrated in FIGS. 1-5, the temperature of the coating material just before apply | coating with an application | coating apparatus is detected with the 1st temperature sensor 50, The detection data of the 1st temperature sensor 50, and the selected target temperature, The control device 20 is configured to perform control to adjust the heating temperature of the heating device 43 of the temperature adjustment device 40 based on the difference between the two, for example, the mixed paint immediately after being heated by the temperature adjustment device 40 Based on the detection data of the 2nd temperature sensor 71 which detects temperature, it can also be set as the structure which performs control which adjusts the heating temperature of the heating apparatus 43 of the temperature control apparatus 40 by the control apparatus 20. FIG.

  In this case, the mixed paint detected by the second temperature sensor 71 depends on the length of the pipe (hose) between the temperature adjusting device 40 and the spraying device 61 and the temperature condition of the painting site where the pipe exists. There is a possibility that a temperature difference occurs between the temperature and the temperature of the mixed paint when applied by the application device 60. Therefore, when the control device 20 is configured to control the heating temperature of the heating device 43 of the temperature adjustment device 40 based on the detection data of the second temperature sensor 71, the input device 10 When “the length of the pipe between the temperature adjusting device 40 and the spraying device 61” and “the temperature of the painting site” where the pipe exists are input, the control device 20 is input to the input device 10 “ Based on the conditions of “the length of the pipe between the temperature adjusting device 40 and the spraying device 61” and “the temperature of the painting site” and the detection data of the second temperature sensor 71, It is preferable to perform a control for adjusting the heating temperature of the heating device 43 of the temperature adjusting device 40 so that the temperature of the mixed paint becomes the selected target temperature.

DESCRIPTION OF SYMBOLS 1 Coating system 10 Input apparatus 20 Control apparatus 30 Mixing apparatus 31 Mixing tank 32 Mixer 33 Mixing information display apparatus 40 Temperature control apparatus 41 Sealed container 42 Heat medium 43 Heating apparatus 44 Tubular member 45 Stirring apparatus 46 Temperature information display apparatus 50 1st Temperature sensor 60 Application device 61 Spraying device 62 Nozzle chip 63 Feeding device 64 Application information display device 70 Viscosity sensor 71 Second temperature sensor 72 Third temperature sensor 80 Mounting base 81 Top plate 82 Leg 90 Warning device

Claims (6)

A mixing device for mixing the paint and a solvent for diluting the paint, a temperature adjusting device for adjusting the temperature of the mixed paint formed by the mixing device, and the mixed paint whose temperature is adjusted by the temperature adjusting device is applied. A coating system comprising a coating device,
An input device for inputting the type of the paint and a control device connected to the input device. The control device includes a target input amount of the solvent for a reference amount of the paint and a target temperature of the mixed paint. A combination is preset for each type of paint,
When the paint type is input to the input device, the control device selects the combination corresponding to the input paint type, and applies the coating from the coating device according to the selected combination. A coating system characterized in that control is performed to maintain the viscosity of the mixed paint to be a preset target viscosity.   The viscosity of the paint does not change even when the target temperature preset in the control device is within the allowable temperature of the paint use condition and the paint is heated to a temperature exceeding the target temperature. The coating system according to claim 1, wherein the temperature is a threshold value, and the target input amount is determined based on the target temperature and the target viscosity. With display equipment,
The part of the maintained control is control for causing the control device to display at least one of the combinations on the display device and instructing an operation corresponding to the combination. Painting system. A temperature sensor installed in the coating device to detect the temperature of the mixed paint;
The part of the control to be maintained is control for adjusting an output of the temperature adjusting device by the control device based on a difference between the temperature of the mixed paint detected by the temperature sensor and the target temperature. The coating system of any one of -3. The coating apparatus is selectively configured with a plurality of different coating patterns,
In addition to the combination, the application pattern is preset for each type of the paint in the control device,
When the type of paint is input to the input device, the control device selects the application pattern corresponding to the input type of paint and applies the mixed paint with the selected application pattern. The coating system according to any one of claims 1 to 4, which is control for instructing work. A coating method in which a paint and a solvent for diluting the paint are mixed by a mixing device, the temperature of the mixed paint formed by the mixing device is adjusted by a temperature control device, and the mixed paint whose temperature is adjusted is applied by a coating device. Because
Before mixing the paint and the solvent, enter the type of paint in the input device,
Based on the type of the paint input to the input device, the control device selects a combination of a target amount of the solvent with respect to the reference amount of the paint and a target temperature of the mixed paint,
According to the selected combination, mixing of the paint and the solvent in the mixing device and adjustment of the temperature of the mixed coating in the temperature adjusting device are performed, and the viscosity of the mixed coating applied from the coating device is A coating method characterized by being maintained at a preset target viscosity.

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