KR102511798B1 - Model spray work bench using workshop ventilation system - Google Patents

Abstract

The present invention provides a model spray workbench that provides an atmosphere that allows concentration on painting work and saves the cost of maintaining appropriate cooling and heating temperatures in a workshop room. A working device using a workshop ventilation system, according to an embodiment of the present disclosure, comprises: a spray booth having a space formed therein for spraying paint on an object to be painted; an exhaust pipe for sucking in the air inside the spray booth and discharging the air to the outside; an opening and closing plate installed to be rotatable on the exhaust pipe to open and close the exhaust pipe; a detection sensor installed inside the spray booth; an opening and closing motor automatically opening and closing the opening and closing plate; and at least one control unit operably connected to the detection sensor and the opening and closing motor, wherein the at least one control unit may be configured to perform the steps of: measuring the spray amount of the paint sprayed on the object to be painted in the spray booth; and automatically controlling the degree of opening and closing according to the sprayed amount.

Description

Model spray work bench using workshop ventilation system {MODEL SPRAY WORK BENCH USING WORKSHOP VENTILATION SYSTEM}

The present invention relates to a model spray workbench using a workshop ventilation system, and more particularly, by using a ventilation system for ventilating the workshop interior of an assembly space for assembling models (plastic models), each independently inside the workshop. The paint dust sprayed to paint the model in each of the plurality of spray booths separated to assemble and paint the model does not spread to the outside of the spray booth, and the paint dust passes through the exhaust pipe installed inside the spray booth where the painting is performed. It relates to a mock-up spray workbench that can maintain a pleasant environment in the workshop with a configuration that exhausts through the main exhaust duct of the ventilation system.

In general, users who assemble assembly model toys such as robots, warships, airplanes, cars, etc., assemble the assembly model toys, and then perform painting work in which various colors are applied to the assembled model toys according to the user's taste.

In general, in order to assemble a model assembly toy and then apply a new color to the assembled model, a small spray booth provided in the room is used.

Conventionally, in a small spray booth for coloring an assembled model toy, a filter and paint dust for filtering paint dust sprayed toward the model and scattered in addition to the paint painted on the model in order to paint the model in a new color An exhaust fan is installed to suck in and exhaust the air so that it does not diffuse into the room.

However, in the case of a workshop in which a plurality of spray booths for applying various colors to the assembled model are arranged at regular intervals, an exhaust fan must be installed in each of the plurality of spray booths, so that a plurality of There is a problem that the installation cost required to install the spray booth becomes expensive, and the workshop room in which the plurality of spray booths are installed is caused by motor noise generated from each of a plurality of exhaust fans installed one by one in each of the plurality of spray booths. It is pointed out as a problem that the noise becomes large.

Among the above problems, if the motor noise generated from a plurality of exhaust fans installed one by one in each of a plurality of spray booths in the studio is increased, it interferes with the concentration of people who are painting various colors on models. Since it provides a factor, there is a disadvantage that prevents precise painting work, and since the exhaust fan is composed of a structure that cannot seal the exhaust pipe, the indoor air is cooled and heated by the cooling and heating facilities installed in the studio. Since it can easily leak outside, there is a problem that the cost of cooling and heating the interior of the workshop increases rapidly. Doing so is being pointed out as a problem.

Registered Patent No. 10-0804990 (Announced on February 12, 2008) Registered Utility Model No. 20-0479741 (Announced on February 25, 2016)

The present invention has been proposed to solve various problems in the prior art as described above, and it is possible to reduce the installation cost of a plurality of spray workstations in which spray booths for coloring after assembling model toys are formed, respectively. In the interior of the workshop where the plurality of spray work tables are arranged, the noise of the motor for driving the exhaust fan is not generated, so that people who want to paint the color they want after assembling model toys, etc. The purpose is to provide a model spray workbench that can provide an atmosphere where there are no interruptions to work and can focus on painting work, and can save costs required to maintain an appropriate temperature for heating and cooling in the studio. it was invented

A work device using a studio ventilation system according to an embodiment of the present disclosure includes a spray booth in which a space for spraying a paint on an object to be painted is formed therein; An exhaust pipe for sucking in the air inside the spray booth and discharging it to the outside; an opening/closing plate rotatably installed in the exhaust pipe to open and close the exhaust pipe; A detection sensor installed inside the spray booth; an opening/closing motor that automatically opens and closes the opening/closing board; and at least one control unit operably connected to the detection sensor and the opening/closing motor, wherein the at least one control unit measures a spray amount of the paint sprayed on the object to be painted in the spray booth. ; And it may be configured to perform the step of automatically controlling the degree of opening and closing according to the injection amount.

In addition, the at least one control unit is configured to perform the step of detecting the pressure inside the spray booth in the step of measuring the spray amount, and in the step of automatically controlling the opening and closing degree, the detected pressure is 1 may be configured to execute the step of controlling the opening/closing degree of the opening/closing plate to maintain a critical range.

In addition, the at least one control unit, obtaining image information of the object to be coated; determining identification information of the object to be coated that is matched from a pre-stored database based on the image information; Acquiring completion image information corresponding to a painting completion state of the object to be coated based on the identification information; determining a similarity between the image information and the complete image information; and if the similarity is within a second threshold range, outputting a notification message informing that the painting operation for the object to be coated is completed, wherein the image information includes the shape, size, material, and shape of the object to be coated. Contains information about at least one of the colors.

In addition, the at least one control unit may be further configured to perform the step of changing the first threshold range when the similarity is within a second threshold range.

In addition, the working device further includes a multi-filter unit for blocking the inflow of fine dust from the outside, and the at least one control unit is configured to perform a step of measuring an outflow injection amount discharged from the detection sensor through the multi-filter unit. become,

The automatically controlling the opening/closing degree may be performed based on a value obtained by subtracting the outflow injection amount from the injection amount.

According to the present invention, each of the plurality of spray booths arranged in the workshop has an exhaust fan in the exhaust pipe for sucking and discharging the paint dust sprayed into the spray booth when performing a painting operation of applying various colors to assembly model toys. However, a motor for rotating the exhaust fan is not installed, and instead, the main exhaust gas that occurs when indoor air is sucked in and discharged to the outside to ventilate indoor air through the main exhaust duct of the ventilation system installed in the studio. As a means of inhaling and exhausting the paint dust generated in the spray booth with the exhaust pressure of the exhaust duct, it provides the effect of creating an atmosphere where people who assemble model toys and paint them in various colors can concentrate on painting work in the workshop. By doing so, it has the effect of providing a preferred workshop for those who have a hobby of assembling and coloring assembly model toys.

In addition, in the case of a business that operates a workshop equipped with facilities for assembling and painting assembly model toys, it can not only reduce installation costs for installing multiple spray booths, but also reduce the paint generated from the spray booths. An opening and closing plate is formed on the exhaust pipe to discharge dust and dirt, so that the exhaust pipe is open during painting work, while the exhaust pipe is closed when the painting work is not in progress to prevent indoor air from leaking to the outside. By preventing air from entering the room, it prevents the loss of cooling and heating air in the room, thereby reducing the consumption of electrical energy and reducing the cost of operating the workshop.

1 is a perspective view of a model spray workbench according to an embodiment of the present disclosure.
2 is a cross-sectional view of a model spray workbench according to an embodiment of the present disclosure.
3 is a flowchart illustrating the operation of a model spray workbench according to an embodiment of the present disclosure.
4 is another flow chart related to the operation of the mock-up spray workbench according to an embodiment of the present disclosure.
5 is another flow chart related to the operation of the mock-up spray workbench according to an embodiment of the present disclosure.
6 is a configuration diagram illustrating an operation of performing a painting work by a model spray workbench according to an embodiment of the present disclosure.
7 is a graph related to an operation of performing an opening and closing operation according to an internal pressure of a model spray workbench according to an embodiment of the present disclosure.
8 is a configuration diagram illustrating an operation for identifying an object to be painted by a model spray workbench according to an embodiment of the present disclosure.

Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings, but the same or similar elements are given the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. In addition, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiment disclosed in this specification, the detailed description thereof will be omitted.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, each step described can be performed regardless of the listed order, except for the case where it must be performed in the listed order due to a special causal relationship.

In this application, terms such as "comprise" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is a perspective view of a model spray workbench according to an embodiment of the present disclosure.

Referring to FIG. 1, the spray work table 1 includes a support leg 11 supported on the floor, a support plate 12 fixed horizontally on the support leg 11, and an upper surface of the support plate 12 The spray booth 2, the shelf storage 3, the upper and lower storage cabinets 4a and 4b, etc. are arranged and installed in a L-shape or a reverse L-shape. The arrangement structure of each of the spray booth 2, the shelf storage 3, and the upper and lower storage cabinets 4a and 4b arranged and installed in the L-shape or reverse L-shape on the spray work table 1 is the base plate 12 Based on the spray booth 2 installed at the corner of the left and right sides, the shelf storage 3 and the upper and lower storage cabinets 4a and 4b are installed, and the spray worktable 1 is It is composed of a structure in which two spray worktables 1 are arranged symmetrically to form a set as shown in FIG. 2 to form a passage through which people pass when a plurality of arrangements are installed inside.

Therefore, in a plurality of spray work benches 1 arranged and installed in a symmetrical state, people performing painting work sit on chairs 13 with their backs facing each other to perform painting work.

The spray booth 2 is open on the front side and the back side is sealed by the back plate 21, and the open interior is divided into the upper storage room 23 and the lower painting room 24 by the separation plate 22 The upper storage room (23) can be used as a storage space for storing assembly parts (P1) of an assembly model toy, and the lower painting room (24) is assembled to apply various colors. It can be used as a painting space for painting by spraying paint on the assembly parts P1 of the model toy. In addition, the assembly part (P1) to be painted in the lower painting room (24) is inserted into the lower painting room (24) using tongs (P2) composed of tongs or skewers, and paint is sprayed to perform the painting operation. By enabling this, it is possible to precisely paint the paint on the assembly part P1 while preventing the sprayed paint from sticking to the skin of the hand or the like.

2 illustrates a configuration in which an opening and closing plate can be rotated in a mock-up spray workbench according to an embodiment of the present disclosure.

Referring to FIG. 2 , the opening/closing plate 55 rotatably installed in the exhaust pipe 5 may be configured to rotate manually or automatically.

First, in the configuration for manually opening and closing the opening and closing plate 55, a manual handle 6a is connected and attached to the upper end of the rotary shaft 56 protruding upward from the exhaust pipe 5, and the manual handle (6a) is formed so as to protrude into the inside of the spray booth (2) through a through hole (21a) formed in the back plate (21) of the spray booth (2). Therefore, a user who wants to perform a painting operation by spraying paint on the assembly part (P1) of the assembly model toy opens the opening/closing plate (55) by rotating the manual knob (6a) protruding into the inside of the spray booth (2). can be closed or closed.

The configuration for automatically opening and closing the opening and closing plate 55 is fixedly installed at the bottom of the separation partition plate 22 forming the spray booth 2 to be separated up and down, and the assembly part P1 to be painted by the user When it is put into the lower painting room 24, the detection sensor 6b detects it and receives the signal of the detection sensor 6b to rotate the opening/closing plate 55 in the forward/reverse direction at a certain angle to open or close it. It is composed of a motor (6c) for opening and closing for.

Hereinafter, an embodiment in which an operation of automatically opening and closing the opening/closing plate is performed based on the spray amount of the paint and whether or not the painting is completed will be described in detail. In addition, hereinafter, the model spray work table will be referred to as a 'working device'.

3 is a flowchart of an operation of a working device according to an embodiment of the present disclosure. Hereinafter, description will be made focusing on each step constituting the method of performing the opening and closing operation of the spray booth by the work device.

In step S301, the working device measures the spray amount of the paint sprayed on the object to be coated in the spray booth.

A coating material, that is, a paint, is a material that protects or beautifies the surface by covering the surface of the object to be painted. Painting means applying a paint to the surface of an object to form a film.

For the painting operation according to the embodiment of the present disclosure, an air spray method in which the paint is sprayed with the force of compressed air to cover the object to be painted may be applied. Here, the spray amount of paint may be the amount of paint sprayed into the spray booth for a predetermined time or unit time. In addition, the spray amount of the paint may be limited to the amount of the paint sprayed into the spray booth and deposited on the surface of the object to be coated.

The operation of measuring the spray amount of the paint may include an operation of measuring a physical quantity related to the spray amount of the paint. More specifically, the spray amount of paint may be determined according to basic information such as the amount of paint, time, pressure, temperature, and visual information, and the operation of measuring the spray amount of paint may include the operation of determining the above-described basic information. can For example, the base information is the amount of paint sprayed per unit time, the time the paint is sprayed, the pressure change of the spray that sprays the paint, the degree of opening and closing of the opening/closing plate connecting the spray booth to the outside, and the color information of the object to be painted. may include at least one of them.

The base information may be acquired by a detection sensor provided in the work device. The detection sensor may include an optical sensor such as a camera, an air pressure detection sensor such as a tire pressure monitoring system (TPMS), a timer, and the like.

The control unit provided in the working device may calculate an approximate value or an increase/decrease trend of the spray amount of the paint based on the basic information provided from the detection sensor.

In step S303, the working device automatically controls the degree of opening and closing according to the injection amount.

The working device may rotate the opening/closing plate by determining an opening/closing degree matching the measured injection amount based on a predetermined rule, and controlling an opening/closing motor according to the determined opening/closing degree.

It is necessary to appropriately control the spray amount of the paint in order to perform a high-quality painting operation on the object to be coated. More specifically, when the measured spraying amount exceeds the critical range, the coating film may become excessively thick or the coating may be uneven, and when it does not reach the critical range, the time required for the painting operation becomes longer. It is necessary to determine the spray amount of the paint and appropriately control the internal environment of the spray booth so that the painting operation is performed according to the determined spray amount.

In the working apparatus according to an embodiment of the present disclosure, the spray amount of the paint may be adjusted by changing the opening/closing degree of the opening/closing plate. More specifically, even if the amount of paint injected as a spray is constant, the actual amount of paint sprayed can be controlled by adjusting the amount of paint flowing out to the outside by changing the degree of opening and closing of the opening/closing plate.

The predetermined rule is a rule regarding the degree of opening and closing of the most appropriate opening/closing plate for the spray amount of the paint, and may be determined according to the object to be coated. For example, when the size of the object A is larger than the size of the object B, the rotation angle of the opening/closing plate may be kept larger for the object A requiring painting in a wider range. In addition, when the object C has a more complex structure than the object D, the rotational angle of the opening/closing plate can be kept smaller for the object C, which has a high possibility of non-uniform deposition. That is, the predetermined rule may be determined differently according to information such as the appearance, size, and material of the object to be coated.

4 is another flow chart related to the operation of a working device according to an embodiment of the present disclosure. Hereinafter, description will be made focusing on each step constituting the method of performing the opening and closing operation of the spray booth by the work device.

In step S401, the working device detects the pressure inside the spray booth.

More specifically, the work device acquires information about the air pressure measured in the space formed by the spray booth. Here, information on air pressure may mean information on pressure formed according to compressed air sprayed, air discharged to the outside as the opening/closing plate is opened, and air flowing in and out through multiple filters described later.

As the amount of paint sprayed from the spray increases, the amount of compressed air flowing into the spray booth may increase, so the work device determines the pressure measured inside the spray booth and provides information on the amount of paint corresponding to the determined pressure. can be calculated

In step S403, the working device controls the opening/closing degree of the opening/closing plate so that the sensed pressure is maintained within the first critical range.

The first critical range may refer to a range of pressure in which a painting operation on an object to be coated can be most appropriately performed. More specifically, the working device may select an injection amount that can maximize painting efficiency for a specific object to be coated according to a predetermined rule, and determine a range of pressure corresponding to the determined injection amount. For example, if the object to be coated corresponds to the leg shape b of robot A, the work device may determine that the most appropriate pressure range is 6.3 to 6.5 bar.

Thereafter, the working device may adjust the degree of opening and closing of the opening and closing plate to maintain the determined pressure range. In another embodiment, the work device may adjust the pressure of the air flowing out to the exhaust pipe by controlling the exhaust fan of the ventilation system. More preferably, the working device can control the pressure inside the spray booth to be maintained within the first critical range by dynamically adjusting the degree of opening and closing of the opening and closing plate and the air pressure of the exhaust pipe.

In step S405, the work device determines whether or not the painting work on the object to be coated has been completed.

Whether or not the painting work is completed may be determined based on visual information acquired by a detection sensor provided in the work device. More specifically, it may be determined by comparing the image of the object to be coated with the current image of the object to be coated in which the painting operation is in progress. Details will be described later with reference to FIG. 5 .

When it is determined that the painting work is completed, the working device may perform the operation of step S407, and when it is determined that the painting work is not completed, the working device may perform step S403 again.

In step S407, the working device changes the first threshold range.

More specifically, the working device may change the lower limit value of the pressure determining the first threshold range, or change both the upper limit value and the lower limit value. Here, the lower limit of the changed pressure may be lower than the lower limit of the pressure before the change. Preferably, the changed first threshold range does not overlap with the first threshold range before the change, and the changed first threshold range may be an overall lower pressure range than the first threshold range before the change. Accordingly, the working device can open the exhaust pipe more widely by controlling the degree of opening and closing of the opening and closing plate.

That is, in step S407, the work device may discharge unnecessary paint floating in the air to the outside through the exhaust pipe by lowering the pressure in the spray booth as it is determined that the painting work is completed.

5 is another flowchart illustrating an operation of a work device according to an embodiment of the present disclosure. Hereinafter, each step constituting a method for the work device to perform a subsequent operation according to the completion of the painting work will be described.

In step S501, the working device obtains image information of the object to be coated.

Image information is visual information about the object to be coated and may be acquired by an optical sensor such as a camera or LiDAR. Preferably, the work device may distinguish between initial image information acquired at the time the object to be coated enters the inside of the spray booth and painting image information acquired while the painting work is being performed.

The image information may include all visually identifiable information such as the size, shape, material, and color of the object to be coated.

In step S503, the work device determines identification information of the object to be coated from a database stored in advance based on the image information.

The pre-stored database may be data stored in a server capable of transmitting or receiving data by being connected to the work device through a wireless communication network. The pre-stored database may include specific identification information on a model object to be painted.

Identification information is information necessary to identify a model, and includes not only the size, shape, color, and material of the model, but also information on the finished product related to the model, what part the model is, and how many parts are assembled. It can be understood as encompassing.

The work device may determine identification information for specifying a model object by matching visual information extracted from image information with information existing in a pre-stored database. For example, if the work device extracts information that the object to be coated is 'red', 'robot's arm' and 'b shape' from image information, the work device communicates with the server to match the above three information It is possible to specify the model that most closely approximates the image information among the models to be played. The model object specified here may be determined as identification information of the object to be coated.

At this time, the image information used to determine the identification information of the object to be coated may be the first image information on which no painting work has been performed.

In step S505, the work device acquires completion image information corresponding to the painting completion state of the object to be coated based on the identification information.

The work device may obtain image information of the object to be coated in a state in which the painting work for the object to be coated is normally completed from a pre-stored database. For example, the object to be coated may be 'white' and 'a size' according to the initial image information, but the finished image information of the object to be coated may be 'red' and 'b size' based on a pre-stored database.

In step S507, the work device judges the degree of similarity between the image information and the finished image information.

Here, the image information may be painting image information in which a painting work is being performed, rather than initial image information. That is, the work device may determine how much of the current painting work has been completed by mutually comparing painting image information and completion image information. Similarity determination may be performed through a color histogram between image information and complete image information. For example, if the color of the object to be coated is 'red' according to the finished image information, but the color of the object to be coated is 'dark pink' according to the painting image information, the work device will determine that the painting job is '78% complete'. can

In step S509, when the degree of similarity is within the second threshold range, the work device outputs a notification message indicating that the painting work on the object to be coated has been completed.

There may be a predetermined threshold range for a painting job to be considered complete. For example, when the similarity between the image information and the finished image information is 92 percent, the work device may determine that the painting job is complete, considering the similarity to be within the second threshold range (90 percent or more).

Thereafter, the work device may notify through an output unit that the painting work on the object to be coated is completed. More specifically, the work device may guide the user performing the painting work through spraying to stop spraying by outputting a notification message indicating completion through a display, a speaker, or the like. Accordingly, the user can recognize the completion of the painting operation even in a situation where the inside of the spray is not clearly visible, and can stop spraying so that the coating film does not become thick unnecessarily.

6 is a configuration diagram illustrating an operation of a painting work performed by a work device according to an embodiment of the present disclosure.

Referring to FIG. 6 , the working device according to an embodiment of the present disclosure includes a spray booth 610, a detection sensor 630, a controller 650, an opening/closing plate 670, and an exhaust pipe 690.

The spray booth 610 may be a space of a certain size formed in a working device so that the painting work of the object 600 may be performed therein. The spray booth may form an opening communicating with the outside so that the paint sprayed from the spray 615 may be deposited on the object to be painted inside. In another example, the spray may be fixedly installed inside the spray booth and spray operation of the paint by electrical control. In this case, the inside of the sprayer may remain sealed while the opening/closing plate is closed.

The sprayer can exert a measurable pressure inside the spray booth by dispensing the paint. The compressed air of the spray and the sprayed paint enter the spray booth, and the air pressure in the interior space may increase. At this time, the pressure increased by the spray may be referred to as input air pressure 620a.

The opening and closing plate 670 can open and close the exhaust pipe 690 connecting the spray booth and the outside. The opening/closing plate is automatically driven by an opening/closing motor, and the opening/closing motor may be controlled according to a control command provided from the control unit 650 of the work device. The opening and closing plate is opened and the air inside the spray booth can flow out through the exhaust pipe. The air inside the spray booth leaks out and the air pressure inside the spray booth can be lowered. At this time, the pressure lowered according to the air discharged to the outside may be referred to as the output air pressure 620b. The output air pressure may be determined according to the amount of air pressure discharged per unit time.

The detection sensor 630 is fixedly installed inside the spray booth to detect changes in internal pressure, visual information, temperature, time, and the like. For example, the detection sensor can detect changes in air pressure inside the spray booth. In addition, the detection sensor may detect whether or not an object to be coated enters the spray booth and obtain image information of the object to be coated.

The controller 650 may obtain basic information sensed from the sensor and generate a control command for opening and closing the opening/closing plate based on the acquired basic information and data received from the server. In addition, the controller may provide the generated control command to the opening/closing motor to perform the opening/closing operation.

7 is a graph related to an operation in which the work device according to an embodiment of the present disclosure performs an opening and closing operation according to an internal pressure.

Referring to Figure 7, it is possible to determine the relationship between the data obtained by the sensor measuring the change in pressure over time and the measured data and the operation performed inside the spray booth. The reference pressure may be a pressure measured in a state in which paint is not sprayed by a spray.

The detection sensor may detect (710) that the object to be coated has entered the spray booth. When the detection sensor detects the object to be coated for the first time, the measured pressure may be the reference pressure because the spraying of the paint has not yet been performed.

When the paint injection 730 by spraying starts, the pressure measured inside the spray booth may gradually increase. The control unit may confirm that the amount of paint injection is gradually increasing through an increase in the internal pressure measured by the detection sensor.

The controller may open the opening/closing plate to maintain the pressure inside the spray booth when the pressure inside the spray booth reaches a certain threshold. Here, the predetermined threshold value is determined according to the characteristics of the object to be coated and may be a value associated with an optimum spraying amount capable of most efficiently performing a painting operation on the object to be coated. Here, a certain threshold should be understood as meaning including a certain threshold range. The operation to open the opening/closing board may be an opening operation for maintaining the pressure inside the spray booth within a certain critical range by finely adjusting the opening/closing motor that drives the opening/closing board to control the amount of air flowing out to the outside. This may be referred to as primary opening 750 .

Thereafter, the control unit may determine whether or not the painting work on the object to be coated is completed, and may change the degree of opening/closing of the opening/closing plate when it is completed. Determination of whether the painting work is completed may be performed according to the operation of FIG. 5 .

The operation of opening the opening/closing plate may be an operation for preparing a painting operation for a subsequent object to be coated by discharging all the paint present in the spray booth to the outside and for cleaning the inside of the spray booth. In addition, it may be an operation to prevent non-uniformity or thickening of the coating film due to the deposition of the paint on the object to be coated even after the painting operation is completed. This may be referred to as a second opening 770 . The secondary opening may be an opening operation for increasing the output air pressure in order to quickly discharge paint particles floating in the air inside the spray booth. More preferably, the control unit can increase the output air pressure by giving a control command to rotate the exhaust fan of the ventilation system more strongly.

8 is a configuration diagram illustrating an operation for identifying an object to be coated by a work device according to an embodiment of the present disclosure.

Referring to FIG. 8 , the control unit 850 of the work device may transmit or receive signals and data through an external server 880 and a wired or wireless network. More specifically, the work device may provide the base information acquired by the detection sensor 830 to the server, request identification information corresponding to the base information, or obtain data related to the base information from a database stored in the server. .

More specifically, the detection sensor of the work device acquires first image information 801 of the object to be coated 800 entering the inside of the spray booth. The control unit of the work device may transmit the obtained initial image information to the server, and may obtain completed image information 805 of the object to be coated that matches the object of the initial image information from the server. Thereafter, the control unit of the work device may acquire real-time image information of the object to be coated while the painting work is being performed, compare it with the initial image information to determine how much the painting work has progressed, and compare with the completed image information to complete the painting work. You can decide how much is left.

For example, when a target object corresponding to a 'cylinder' enters, the work device may extract external features of the target object based on initial image information acquired by a sensor. That is, the 'shape' of the object to be coated is cylindrical, the 'size' is 10.4 cm in height and 5.2 cm in diameter, and the color is 'white'. Then, the work device may transmit information on the extracted feature to an external server. The server may identify a corresponding object to be coated based on the received information on the characteristics of the object to be coated. That is, through information about the characteristics, the shape is cylindrical, the size is 10.4 cm in height, 5.2 cm in diameter, and the color is white, it is identified that the object to be coated corresponding to it is 'part c of joint b of robot A'. information can be determined. Then, as complete image information corresponding to the determined identification information, 'part c of joint b of robot A painted in red' may be found and provided to the work device.

Then, the work device compares the completed image information with the real-time image information, and may perform painting work until the object to be painted is sufficiently painted 'red'. When the object to be coated belongs to the same or similar range as the finished image, the work device may determine that the painting work is completed and perform a corresponding subsequent operation.

A work device using a studio ventilation system according to an embodiment of the present disclosure includes a spray booth in which a space for spraying a paint on an object to be painted is formed therein; An exhaust pipe for sucking in the air inside the spray booth and discharging it to the outside; an opening/closing plate rotatably installed in the exhaust pipe to open and close the exhaust pipe; A detection sensor installed inside the spray booth; an opening/closing motor that automatically opens and closes the opening/closing board; and at least one control unit operably connected to the detection sensor and the opening/closing motor, wherein the at least one control unit measures a spray amount of the paint sprayed on the object to be painted in the spray booth. ; And it may be configured to perform the step of automatically controlling the degree of opening and closing according to the injection amount.

In addition, the at least one control unit is configured to perform the step of detecting the pressure inside the spray booth in the step of measuring the spray amount, and in the step of automatically controlling the opening and closing degree, the detected pressure is 1 may be configured to execute the step of controlling the opening/closing degree of the opening/closing plate to maintain a critical range.

In addition, the at least one control unit, obtaining image information of the object to be coated; determining identification information of the object to be coated that is matched from a pre-stored database based on the image information; Acquiring completion image information corresponding to a painting completion state of the object to be coated based on the identification information; determining a similarity between the image information and the completed image information; and if the similarity is within a second threshold range, outputting a notification message informing that the painting operation for the object to be coated is completed, wherein the image information includes the shape, size, material, and shape of the object to be coated. Contains information about at least one of the colors.

In addition, the at least one control unit may be further configured to perform the step of changing the first threshold range when the similarity is within a second threshold range.

In addition, the working device further includes a multi-filter unit for blocking the inflow of fine dust from the outside, and the at least one control unit is configured to perform a step of measuring an outflow injection amount discharged from the detection sensor through the multi-filter unit. become,

The automatically controlling the opening/closing degree may be performed based on a value obtained by subtracting the outflow injection amount from the injection amount.

The technical features disclosed in each embodiment of the present invention are not limited to the corresponding embodiment, and unless incompatible with each other, the technical features disclosed in each embodiment may be merged and applied to other embodiments.

Therefore, in each embodiment, each technical feature is mainly described, but each technical feature may be merged and applied to each other unless incompatible with each other.

The present invention is not limited to the above-described embodiments and accompanying drawings, and various modifications and variations will be possible from the viewpoint of those skilled in the art to which the present invention belongs. Therefore, the scope of the present invention should be defined by not only the claims of this specification but also those equivalent to these claims.

600: object to be painted
610: spray booth
630: detection sensor
650: control unit
670: opening and closing plate
690: exhaust pipe

Claims (5)

In the work device using the workshop ventilation system,
The working device,
A spray booth in which a space for spraying paint on objects to be coated is formed therein;
An exhaust pipe for sucking in the air inside the spray booth and discharging it to the outside;
an opening/closing plate rotatably installed in the exhaust pipe to open and close the exhaust pipe;
A detection sensor installed inside the spray booth;
an opening/closing motor that automatically opens and closes the opening/closing board; and
It includes at least one control unit operably connected to the detection sensor and the opening/closing motor,
The at least one control unit,
Measuring the spray amount of the paint sprayed on the object to be coated in the spray booth; and
and automatically controlling the degree of opening and closing according to the injection amount.
Measuring the spray amount of the paint;
Basic information including at least one of the amount of paint sprayed per unit time, the time the paint is sprayed, the pressure change of the spray that sprays the paint, the degree of opening and closing of the opening/closing plate connecting the spray booth to the outside, and the color information of the object to be coated. is measured according to
The base information is obtained by a detection sensor provided in a working device including an optical sensor, a tire pressure monitoring system (TPMS), an air pressure detection sensor, and a timer,
A control unit provided in the working device calculates an approximate value or an increase/decrease trend of the spray amount of paint based on the basic information provided from the detection sensor,
The at least one control unit,
obtaining image information of the object to be coated;
determining identification information of the object to be coated that is matched from a pre-stored database based on the image information;
Acquiring completion image information corresponding to a painting completion state of the object to be coated based on the identification information;
determining a similarity between the image information and the complete image information; and
When the degree of similarity is within a second threshold range, configured to execute a step of outputting a notification message informing that the painting work for the object to be coated is completed;
The image information includes information on at least one of the shape, size, material, and color of the object to be coated, and
The working device,
Further comprising a multi-filter unit that blocks the inflow of fine dust from the outside,
The at least one control unit,
It is configured to execute the step of measuring the outflow injection amount flowing out through the multi-filter unit from the sensor,
The step of automatically controlling the opening and closing degree is performed based on a value obtained by subtracting the outflow injection amount from the injection amount,
Automatically controlling the degree of opening and closing;
According to the size and structure of the object to be coated, the most appropriate rule for the opening and closing degree of the opening/closing plate is set for the spray amount of paint that controls the rotation angle of the opening/closing plate, and the opening and closing degree of the opening/closing plate is changed according to the set rule. control by doing
The at least one control unit,
In the step of measuring the injection amount,
It is configured to perform the step of sensing the pressure inside the spray booth,
In the step of automatically controlling the degree of opening and closing,
configured to execute a step of controlling an opening/closing degree of the opening/closing plate so that the sensed pressure maintains a first threshold range; and
Sensing the pressure inside the spray booth;
Acquiring information about the air pressure measured in the space formed by the spray booth in the work device,
The information on the air pressure is information on the pressure formed according to compressed air sprayed by the spray, air flowing out to the outside as the opening and closing plate is opened, and air flowing in and out through multiple filters.
Work device using workshop ventilation system.
delete delete According to claim 1,
The at least one control unit,
When the similarity is within a second threshold range, further configured to perform the step of changing the first threshold range
Work device using workshop ventilation system.
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