KR102587034B1 - Autombile paint coating booth with heating system - Google Patents

Abstract

According to one aspect of the present invention, a drying room having an entrance on one side; A cold and hot air supply device installed outside the drying room in a direction opposite to the entrance to selectively supply cold or warm air; a supply duct forming a plurality of extension pipes and spray nozzles extending to discharge cold or warm air supplied from the cold or hot air supply device to a specific location in the drying room; a blower installed standing upright on the floor of the drying room on both sides of the work passage with the vehicle in between, and provided with a plurality of spray nozzles to blow wind toward the vehicle; an exhaust port formed on the floor opposite the entrance to the drying room; A filter device connected to the exhaust port to filter out contaminants; a dehumidifying device that removes moisture contained in the purified air that has passed through the filter device; an air tank that stores dry air that has passed through the dehumidifying device; a distribution device installed to selectively supply dry air from the air tank by branching it into a plurality of supply pipes; A first supply pipe connected to the distribution device to supply dry air from the air tank to a cold and hot air supply device; a second supply pipe connected to the distribution device to supply dry air from the air tank to the blower; A third supply pipe connected to the distribution device to supply dry air from the air tank to the painting spray device; and a control module that controls the hot and cold air supply device, blower device, dehumidifying device, and distribution device to perform drying work mode and cooling work mode based on measurement data from the temperature measurement sensor and humidity measurement sensor installed in the drying room. A painting booth for a vehicle having a heat treatment system comprising; may be provided.

Description

Automotive paint booth equipped with a heat treatment system {Autombile paint coating booth with heating system}

The present invention relates to a painting booth for a vehicle, and includes a heat treatment system equipped with a cold and hot air supply device and performing a drying operation mode and a cooling operation mode based on measurement data from a temperature measurement sensor and a humidity measurement sensor installed in the drying room. This relates to the vehicle painting booth provided.

Generally, when a new paint is applied to a car body shipped from an automobile manufacturing plant, a car-specific painting booth equipped with a dust blocking chamber is used to prevent paint dust from scattering to the surrounding area.

The automobile paint booth of the prior art includes a drying room equipped with a door for cars to enter and exit, a heating room for heating and supplying air supplied to the drying room to a set temperature, an intake port for supplying fresh outside air to the heating room, and It is provided with an exhaust port for discharging the warm air supplied to the drying room and used to dry the paint applied to the car body to the outside. In addition, the car painting booth of the prior art mainly uses highly volatile oil-based paint to perform painting work. It is designed with an appropriate structure. Therefore, when painting the car body using a completely non-volatile water-based paint, not only does the drying time of the water-based paint applied to the car body in the paint booth become longer, but the moisture contained in the water-based paint does not evaporate smoothly. It has been pointed out as a disadvantage that water droplets appear on the car body.

Therefore, a painting booth for both oil-based paint and water-based paint has been proposed under Patent Registration No. 10-830228.

The above-mentioned prior patent is a means of supplying warm air heated to a set temperature to the drying room in a gentle breeze and at the same time spraying air through spray nozzles installed on both left and right sides of the drying room, thereby drying the moisture contained in the water-based paint with the wind. It has a structure that does.

However, in the above-mentioned prior patent, fresh cold air flowing in from the outside is directly heated by the heat source of the heater installed in the heating room and supplied to the drying room, so the time required to heat the cold air supplied from the outside in the heating room to the set temperature is short. It is inefficient because it takes longer, and it is uneconomical in terms of energy saving. Additionally, if the warm air used to dry oil-based paint and water-based paint in the drying room is discharged through the same exhaust passage, the volatile substances contained in the oil-based paint There was a problem in that moisture generated when drying water-based paint was adsorbed on activated carbon, which is used to remove substances and odors.

In order to solve these problems of the prior art, Korean Patent No. 10-1350855 discloses a technology for an automobile paint booth for both oil-based and water-based paint.

Figure 1 is a conceptual diagram showing a conventional automobile painting booth.

The prior art as shown in Figure 1 includes an intake port (3a) for sucking in outside air, an intake fan (8) for forcefully sucking in outside air through the intake port, and the outside air sucked in by the intake fan to a set temperature. A heater device (9) for heating, a drying room (2a) for drying the paint painted on the automobile body by receiving warm air heated by the heater device, and warm air used to dry the paint painted on the automobile body in the drying room. an exhaust fan (5) for discharging air to the outside, and heat exchange chambers (4a, 4b) for recovering waste heat from warm air discharged through a heat exchange action between external air sucked in by the intake fan and warm air discharged by the exhaust fan. ) in the automobile painting booth (1) equipped with,

The heat exchange chambers (4a, 4b) include a first heat exchange chamber (4a) in which warm air discharged from the drying chamber is primarily circulated, and a second heat exchange chamber (4b) in which warm air passing through the first heat exchange chamber is secondarily circulated. ), the second heat exchange chamber is configured to be directly connected to the intake port 3a through which external air is sucked, and the first heat exchange chamber is configured to receive external air through the second heat exchange chamber and the intake chamber 81 installed on the intake fan. It is a means formed between the intake passages (7) that guide the suction, and the external air sucked into the intake port (3a) by the intake fan (8) first passes through the second heat exchange chamber (4b), and is then mixed with warm air. It is configured to preheat primarily through the heat exchange action of and then secondarily preheat through the heat exchange action with warm air when passing through the first heat exchange chamber (4a), and is configured to preheat the drying chamber (2a) by the exhaust fan (5). ) The warm air discharged from the drying chamber (2a) is between the lower connection passage (23) connected to the exhaust passage (22) formed in the lower part of the drying chamber (2a) and the upper connection passage (25) on the upper side of the first heat exchange chamber (4a). The first heat exchange chamber is moved from the lower connecting passage 23 through the vertical connecting passage 24 by the damper 30 that is opened and closed by the cylinder 31 installed on the lower side of the vertical connecting passage 24 formed in It is characterized in that it is configured to be discharged into the lower discharge passage 26 via (4a) or directly through the lower discharge passage 26 from the lower connection passage 23.

However, in the above-described prior art, painting and drying work on automobiles were performed in separate spaces, so there was a problem of contamination of the painted surface during movement to the work site.

In addition, the prior art had the problem that drying work took a lot of time, and after the drying work, the inside of the drying room was heated with heat, making it difficult for workers to prepare for the next work.

Republic of Korea Patent No. 10-1350855

The present invention was devised to solve the above problems, and its purpose is to provide a drying work mode and a cooling work mode based on measurement data from a temperature measurement sensor and a humidity measurement sensor installed in a drying room and equipped with a cold and hot air supply device. According to the vehicle painting booth equipped with a heat treatment system to perform, a vehicle painting booth is provided to perform painting work and drying work on a vehicle in the same work space.

Another object of the present invention is to eliminate the inconvenience caused by moving the vehicle for drying work after painting, shorten the painting and drying work time for the vehicle, and dry the vehicle indoors to prevent rain or dust. This is to prevent contamination of the painted surface.

Another object of the present invention is to quickly stabilize the paint film by cooling it by switching to a cooling work mode using a cold and hot air supply device after drying the vehicle, and at the same time adjust the temperature in the drying room to a temperature suitable for the operator to perform painting work. The aim is to improve the working environment of workers by providing cooling.

Another object of the present invention is to significantly shorten the paint film drying time for a vehicle and improve productivity by installing a blower that moves along a transfer rail in the drying room.

Another object of the present invention is to improve thermal efficiency by recycling the hot air exhausted from the drying room by storing it in an air tank and reintroducing it into the drying operation mode, rather than discarding it.

Another object of the present invention is to reduce the drying time of the paint film in the drying room by removing the moisture contained in the high-temperature air stored in the air tank through a dehumidifying device to produce dry air and compressing and storing it in the air tank. On the other hand, it prevents moisture from forming on the surface of the steel plate, improves the adhesion of the paint, and improves the quality of the paint film.

Another object of the present invention is to improve workability and productivity by automatically repeating the drying work mode and cooling work mode by the control module.

According to one aspect of the present invention for achieving the above object, a drying room having an entrance at one side; A cold and hot air supply device installed outside the drying room in a direction opposite to the entrance to selectively supply cold or warm air; a supply duct forming a plurality of extension pipes and spray nozzles extending to discharge cold or warm air supplied from the cold or hot air supply device to a specific location in the drying room; a blower installed standing upright on the floor of the drying room on both sides of the work passage with the vehicle in between, and provided with a plurality of spray nozzles to blow wind toward the vehicle; an exhaust port formed on the floor opposite the entrance to the drying room; A filter device connected to the exhaust port to filter out contaminants; a dehumidifying device that removes moisture contained in the purified air that has passed through the filter device; an air tank that stores dry air that has passed through the dehumidifying device; a distribution device installed to selectively supply dry air from the air tank by branching it into a plurality of supply pipes; A first supply pipe connected to the distribution device to supply dry air from the air tank to a cold and hot air supply device; a second supply pipe connected to the distribution device to supply dry air from the air tank to the blower; A third supply pipe connected to the distribution device to supply dry air from the air tank to the painting spray device; and a control module that controls the hot and cold air supply device, blower device, dehumidifying device, and distribution device to perform drying work mode and cooling work mode based on measurement data from the temperature measurement sensor and humidity measurement sensor installed in the drying room. A painting booth for a vehicle having a heat treatment system comprising; may be provided.

Here, the cold and hot air supply device has a discharge port connected to the inside of the drying room, is connected to the supply pipe of the air tank to form an intake port for supplying dry air, and further forms an auxiliary intake port for supplying external air, and the intake port is controlled by a control module. And the flow path of the auxiliary intake can be controlled on/off.

In addition, the spray nozzle of the supply duct is detachably coupled to the tip of the extension pipe, and an angle-adjustable spray nozzle with an adjustable discharge angle may be provided.

At this time, the extension pipe may be formed so that the discharge port side of the hot and cold air supply device is narrow and gradually expands toward the exit end.

At this time, when the supply duct is viewed from the front, the height D2 of the outlet side extension pipe can be formed to be higher than the height D1 of the outlet side extension pipe of the cold and hot air supply device.

In addition, when the supply duct is viewed from a plane, the width W2 of the outlet side extension pipe can be formed to be wider than the width W1 of the outlet side extension pipe of the cold and hot air supply device.

At this time, a spray nozzle in the form of a slit hole cut long in the width direction of the extension pipe may be formed.

Additionally, the blower can spray dry air while moving back and forth along a transfer rail formed on the floor of the drying room.

At this time, the blower device is manufactured as a "ㄷ"-shaped gantry-shaped structure, and spray nozzles are installed on the vertical and horizontal pillars of the gantry structure to simultaneously blow dry air from the left, right, and upper directions of the vehicle. It can be discharged toward the painted surface of the vehicle.

At this time, the spray nozzle can be detachably coupled to the pillar part of the blower.

In addition, the spray nozzle can be formed in a ball joint structure so that the discharge angle can be adjusted while coupled to the pillar part of the blower.

According to another aspect of the present invention,

a) The entrance to the drying room is opened and the vehicle enters the drying room to prepare for the painting position;

b) when the vehicle arrival signal is input to the control module, the control module controls the distribution device to open only the third supply pipe connected to the spray gun and block the remaining supply pipes;

c) performing painting work on a vehicle using a spray gun connected to the third supply pipe;

d) When the painting work on the vehicle is completed, the worker leaves the drying room and inputs a drying operation signal to the control module, causing the control module to operate the exhaust fan so that the contaminated air inside the drying room is discharged through the exhaust port;

e) After the contaminated air inside the drying room is discharged through the exhaust process, the control module stops the exhaust fan and blocks the exhaust port to block the air inside the drying room from being discharged;

f) the control module opens the first supply pipe of the distribution device to supply dry air stored in the air tank to the cold and hot air supply device;

g) the control module converts the cold and hot air supply device to the warm air mode so that the supplied air passes through the internal heater unit and is heated, and the heated high-temperature dry air is supplied to the supply duct through the discharge port;

h) a control module receiving measurement data from a temperature sensor installed inside the drying room and controlling the supply of heated air to maintain the preset drying temperature and drying time;

i) If the value of the humidity sensor installed inside the drying room by the control module is below the preset value, operating the dehumidifier to continuously discharge moisture inside the drying room until the humidity value reaches the preset value;

j) When the humidity measurement sensor value reaches the preset value, the control module determines that the drying process of the vehicle's paint film has been completed, and blocks the supply of heated air through the cold and hot air supply device to the first supply pipe of the distribution device. Blocking the furnace and simultaneously stopping the operation of the heater unit of the hot and cold air supply device;

k) the control module operates the exhaust fan to exhaust the heated air inside the drying room to the outside of the drying room;

l) sending the discharged high-temperature dry air in a compressed state to an air tank and storing it as high-temperature dry air;

m) after the heated air inside the drying room is discharged, the control module processes the cooling part of the cold and hot air supply device to supply cold air to the drying room;

n) The control module continuously supplies cold air to the inside of the drying room and continues to supply cold air until the temperature inside the drying room cools to the preset temperature. When the temperature measurement sensor value reaches the preset cooling temperature, the cold air stopping the operation of the wind supply device so that the supply of cold air is stopped;

o) Opening the entrance to the drying room to ship vehicles on which painting and cooling work has been completed and stocking new vehicles for painting work; and

p) repeating steps a) and o) above; a heat treatment method using a painting booth for a vehicle may be provided, which includes:

Here, in step d), a filter device is installed at the front or rear end of the exhaust port to purify the contaminated air and discharge it into the atmosphere through the discharge port.

Additionally, in step m), air in the atmosphere can be sucked in and supplied through an auxiliary intake port provided in the hot and cold air supply device.

The present invention as described above is for a vehicle equipped with a cold and hot air supply device and a heat treatment system configured to perform a drying operation mode and a cooling operation mode based on measurement data from a temperature measurement sensor and a humidity measurement sensor installed in the drying room. According to the painting booth, by performing the vehicle painting and drying work in the same work space, the inconvenience caused by moving the vehicle can be eliminated and the time spent on painting and drying the vehicle can be shortened. , drying the vehicle indoors has the effect of preventing contamination of the painted surface by rain or dust.

In addition, the present invention can quickly proceed with cooling and stabilization of the paint film by switching to a cooling work mode using a cold and hot air supply device after drying the vehicle, and cools the temperature in the drying room to a temperature suitable for the worker to perform painting work. This has the effect of improving the working environment of workers.

In addition, the present invention has the effect of improving productivity by significantly shortening the paint film drying time of a vehicle by installing a blower that moves along a transfer rail in the drying room.

In addition, the present invention has the effect of improving thermal efficiency by storing the hot air exhausted from the drying chamber in an air tank rather than discarding it and recycling it by reintroducing it into the drying operation mode.

In addition, the present invention allows the moisture contained in the high-temperature air stored in the air tank to be removed through a dehumidifying device, thereby compressing and storing the dry air in the production air tank and using it to shorten the coating film drying time in the drying room. , it can improve the adhesion of paint by preventing moisture from forming on the surface of the steel plate, and has the effect of improving the quality of the paint film.

In addition, the present invention contributes to improving the operator's work convenience and productivity by automatically repeating the drying work mode and cooling work mode by the control module.

Figure 1 is a conceptual diagram showing a conventional automobile painting booth.
Figure 2 is a schematic diagram showing a painting booth for a vehicle equipped with a heat treatment system according to the present invention.
Figure 3 is a front view showing an exemplary form of a supply duct according to the present invention.
Figure 4 is a plan view showing an exemplary form of a supply duct according to the present invention.
Figure 5 is an enlarged view showing a blower according to the present invention.
FIG. 6 is an enlarged view of portion “A” of FIG. 5, where FIG. 6A is an example of removing and replacing the injection nozzle, and FIG. 6B is an example of adjusting the angle of the injection nozzle.

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed in this specification are merely illustrative for the purpose of explaining the embodiments according to the concept of the present invention. They may be implemented in various forms and are not limited to the embodiments described herein.

Hereinafter, embodiments will be described in detail with reference to the attached drawings. However, the scope of the patent application is not limited or limited by these examples. The same reference numerals in each drawing indicate the same members.

Figure 2 is a schematic diagram showing a painting booth for a vehicle equipped with a heat treatment system according to the present invention, Figure 3 is a front view showing an exemplary form of a supply duct according to the present invention, and Figure 4 is a schematic diagram of a supply duct according to the present invention. It is a plan view showing an exemplary form, Figure 5 is an enlarged view showing the blower according to the present invention, Figure 6 is an enlarged portion "A" of Figure 5, and Figure 6a is an example of removing and replacing the injection nozzle. , Figure 6b is an example of adjusting the angle of the spray nozzle.

Referring to Figure 2, the vehicle paint booth according to the present invention largely includes a drying room 110, a hot and cold air supply device 120, a supply duct 130, a blower device 140, an exhaust port 150, and a filter device 160. , dehumidifying device 170, air tank 180, distribution device 190, and control module 200.

The painting booth according to the present invention is equipped with a drying room 110 having an entrance 111 through which vehicles can enter and exit. At this time, in the drying room 110, the worker performs painting work with the entrance 111 closed, and after the painting work is completed, vehicle drying work is performed by heat, and after the drying work, it is used for follow-up work. It provides a work space where cooling work can be performed on the inside of the vehicle and drying room.

Such a drying room 110 may be composed of an insulating wall that blocks heat exchange with the outside to increase thermal efficiency.

At this time, a cold and hot air supply device 120 is installed outside the drying room 110 in a direction opposite to the entrance 111.

The cold and hot air supply device 120 is a device capable of selectively providing cold air or warm air, and a cooling and heating inverter device may be used.

The hot and cold air supply device 120 has an outlet 121 connected to the inside of the drying room 110, and is connected to the supply pipe of the air tank 180 to form an inlet 122 through which dry air is supplied, and external air is supplied. A receiving auxiliary intake port 123 may be further formed.

For example, the dry air supplied through the intake port 122 is heated again as it passes through the heater unit of the hot and cold air supply device 120 and is supplied to the drying chamber 110 in a high-temperature air state to dry the vehicle's paint film.

In addition, the outside air supplied through the auxiliary inlet 123 is cooled while passing through the cooling part of the hot and cold air supply device 120 and is supplied to the drying room 110 to cool the vehicle and the inside of the drying room 110 that become hot during the drying process. do.

At this time, an electromagnetic open/close valve may be installed in the passage of the inlet 122 and the auxiliary inlet 123 to be controlled on/off by the control module 200.

At this time, a supply duct 130 connected to the discharge port 121 of the hot and cold air supply device 120 may be installed inside the drying room 110.

Figure 3 is a front view showing an exemplary form of a supply duct according to the present invention, and Figure 4 is a plan view showing an exemplary form of a supply duct according to the present invention.

The supply duct 130 may form a plurality of extension pipes 131 and a spray nozzle 132 extending to discharge cold or warm air supplied from the cold and hot air supply device 120 to a specific location in the drying room 110. You can.

At this time, the injection nozzle 132 can be detachably coupled to the tip of the extension pipe 131, is coupled so that the direction in which cold or warm air is discharged is toward the vehicle, and is an angle-adjustable injection type whose discharge angle can be adjusted. A nozzle 132 may be provided.

At this time, when the angle-adjustable spray nozzle 132 is used, drying efficiency can be increased by adjusting the direction in which cold or warm air is discharged depending on the size or shape of the vehicle being worked on.

In addition, the spray nozzle 132 is preferably installed as far as possible from the exhaust port 150, which will be described later, and a plurality of spray nozzles 132 are installed using the ceiling, side walls, and floor of the drying room 110. It can be installed, and Figures 2 to 4 show an example of installation on the ceiling.

At this time, the spray nozzles 132 may be installed on the ceiling, side walls, and floor, respectively, or the spray nozzles 132 may be installed only at selected locations. If the spray nozzles 132 are installed in plural, plural spray nozzles 132 may be installed. It can be formed by branching the two extension pipes 131.

In addition, the extension pipe 131 may be narrow at the outlet 121 of the hot and cold air supply device 120 and gradually expands toward the end of the entrance 111.

For example, as shown in FIGS. 3 and 4, an extension pipe 131 whose diameter becomes wider toward the discharge end of the supply duct 130 is formed, and a plurality of spray nozzles 132 are installed on the extension pipe 130. It can be installed spaced apart, and the distribution amount of the supply fluid branched to each spray nozzle 132 varies depending on the diameter of the extension pipe 131 at the point where each spray nozzle 132 branches.

According to this method, the discharge amount of supply fluid (cold air or warm air) discharged from each spray nozzle 132 can be adjusted according to the relative distance from the discharge port 121 to the spray nozzle 132.

For example, the largest amount of supply fluid is discharged from the injection nozzle 132 located at the furthest distance from the discharge port 121, and the smallest amount is supplied from the injection nozzle 132 located at the closest distance from the discharge port 121. Fluid can be discharged.

At this time, referring to FIG. 3, when the supply duct 130 is viewed from the front, the extension pipe on the entrance 111 side is higher than the height D1 of the extension pipe 131 on the discharge port 121 side of the cold and hot air supply device 120. By making the height D2 of the furnace 131 higher, the distribution amount of the supply fluid can be adjusted.

Also, at this time, referring to FIG. 4, when the supply duct 130 is viewed from a planar view, the entrance 111 is smaller than the width W1 of the extension pipe 131 at the discharge port 121 of the cold and hot air supply device 120. The distribution amount of the supply fluid may be adjusted by making the width W2 of the side extension pipe 131 wider.

At this time, a spray nozzle 132 in the form of a slit hole cut long in the width direction of the extension pipe 131 may be formed.

In addition, blowers 140 may be installed on the floor of the drying room 110 in work passages on both sides with a vehicle in between.

Figure 5 is an enlarged view showing a blowing device according to the present invention, Figure 6 is an enlarged view of the "A" part of Figure 5, Figure 6a is an example of removing and replacing the spray nozzle, and Figure 6b is an angle adjustment of the spray nozzle. This is an example.

Referring to FIG. 5, the blower 140 may be installed standing up in the form of a pillar on the floor of the drying room.

The blower 140 includes a plurality of spray nozzles 141 that blow wind toward the vehicle and are installed spaced apart in the vertical direction to simultaneously spray dry air to various parts of the vehicle.

At this time, the air sprayed by the blower 140 is sprayed in direct contact with the painted surface of the vehicle and serves to blow away moisture from the painted surface.

That is, the warm air (hot air) supplied to the drying room 110 by the cold and hot air supply device 120 creates a high temperature atmosphere inside the drying room, and the dry air sprayed from the blower 140 is directly applied to the painted surface. It is sprayed to dissipate moisture and shorten drying time.

Such blowers 140 can be installed in a pair facing each other with the vehicle in between, and the blowers 140 can be arranged in multiple groups in the longitudinal direction of the vehicle. (Figure 2, Figure 5 shows an example in which one set of blowers is installed.)

In addition, the blower 140 is installed in one set, and the blower 140 in the set can spray dry air while reciprocating along the transfer rail 142 formed on the bottom of the drying room 110. .

At this time, an actuator 143 for reciprocating the blower 140 is provided, and the actuator 143 can be configured using a drive device such as a chain sprocket drive device and a hydraulic cylinder.

At this time, the working fluid provided to the spray nozzle 141 of the blower 140 may use dry air stored in the air tank 180, which will be described later.

At this time, a supply pipe connecting the blower 140 and the air tank 180 can be formed on the floor of the drying room to receive the working fluid.

At this time, the blower 140 can be manufactured as a “ㄷ”-shaped gantry-shaped structure, and spray nozzles 141 are installed on the vertical and horizontal pillars of the gantry structure to blow on the left and right sides of the vehicle. Dry air can be discharged toward the vehicle's painted surface simultaneously in both direction and upward.

At this time, the dry air discharged from the blower 140 may be supplied in a state that is not heated or cooled.

Referring to FIG. 6A, the spray nozzles 141 used in the blower 140 may be detachably coupled to the pillar portion of the blower 140, and may not function properly due to severe contamination during use. , the injection nozzle 141 can be replaced by separating it from the pillar part.

At this time, the injection nozzle may be provided with a detachable coupling structure using a screw cap method.

And, referring to FIG. 6B, the spray nozzles 141 used in the blower 140 may be provided in a structure in which the discharge angle can be adjusted while coupled to the pillar portion of the blower 140.

For example, by forming the connection part of the injection nozzle 141 in a ball joint structure, the angle of the injection nozzle 141 can be freely adjusted in the circumferential direction.

And, as shown in FIG. 2, an exhaust port 150 is formed on the floor opposite the entrance 111 of the drying room 110.

An exhaust fan 151 is installed in the exhaust port 150, and the exhaust fan 151 operates to exhaust the air inside the drying chamber 110 to the outside.

At this time, the exhaust fan 151 may be operated to exhaust air contaminated by the painting operation immediately after the painting operation, or may be operated to discharge hot internal air to the outside immediately after the drying operation of the painting vehicle.

At this time, an opening/closing door (not shown) that operates in conjunction with the exhaust fan 151 may be further installed in the exhaust port 150.

In addition, as shown in FIG. 2, a filter device 160 is connected to the exhaust port 150 to filter contaminants contained in the discharged air and discharge them as purified air.

At this time, the filter device 160 may be installed at the front or rear end of the exhaust port 150.

The filter device 160 is a device that efficiently collects and purifies harmful gases such as oversprayed paint mist, dust, and volatile organic compounds during the painting process by spraying paint on the object to be painted in the painting booth and discharges it to the outside air. am.

Such a filter device 160 forms a multi-layer plate-type filter such as a pre-filter, pocket filter, activated carbon, or carbon filter, or forms a filter assembly, installs it in a dust collector, and uses a blower to forcibly discharge air, performing a multi-stage process. As it passes through the filter, harmful substances, including paint mist, can be collected and the exhaust gas can be purified.

And, as shown in FIG. 2, a dehumidifying device 170 may be installed at the rear of the filter device 160 to remove moisture contained in the purified air that has passed through the filter device 160.

And, the dry air that has passed through the dehumidifying device 170 is stored in the air tank 180.

At this time, the dry air stored in the air tank 180 may be stored in a compressed form using the compressor 181.

A distribution device 190 may be installed on the discharge port side of the air tank 180.

The distribution device 190 may serve to selectively supply dry air by branching it into a plurality of supply pipes.

At this time, the first supply pipe 191 is connected to the distribution device 190 to supply dry air from the air tank 180 to the hot and cold air supply device 120, and the distribution device 190 has a second supply pipe 191. The supply pipe 192 is connected to supply dry air from the air tank 180 to the blower 140, and the third supply pipe 193 is connected to the distribution device 190 to supply the dry air to the air tank 180. ) dry air can be supplied to the spray device for painting.

This distribution device 190 can remotely control supply pipes to be opened and closed by the control module 200.

The control module 200 is a cold and hot air supply device to perform a drying operation mode and a cooling operation mode based on the measurement data of the temperature measurement sensor (CS1) and the humidity measurement sensor (CS2) installed in the drying room 110. (120), the blower 140, the exhaust fan 151, the dehumidifier 170, the compressor 181, and the distribution device 190 can be controlled.

Hereinafter, a heat treatment method using the vehicle painting booth of the present invention will be described.

First, the entrance 111 of the drying room 110 is opened and the vehicle enters the drying room 110 to prepare for the painting position.

Afterwards, the worker performs painting work on the vehicle using a spray gun.

At this time, the working air supplied to the spray gun can be used by receiving dry air stored in the air tank 180.

At this time, when the vehicle arrival signal is input, the control module 200 controls the distribution device 190 to open only the third supply pipe 193 connected to the spray gun, and closes the remaining supply pipes to supply the working fluid. Make sure this is blocked.

Afterwards, after the painting work on the vehicle is completed, the worker leaves the drying room and inputs a signal by operating the drying switch.

The control module 200 first operates the exhaust fan 151 to exhaust the contaminated air inside the drying room 110 through the exhaust port 150.

At this time, a filter device 160 is installed at the front or rear end of the exhaust port 150 to purify the contaminated air.

Afterwards, the purified air that has passed through the filter device 160 is discharged into the atmosphere as is.

At this time, the filter device 160 may be provided with an outlet 161 that discharges purified air into the atmosphere.

After the contaminated air inside the drying room 110 is discharged through this exhaust process, the control module 200 stops the operation of the exhaust fan 151 and blocks the exhaust port 150 to allow the air inside the drying room to be discharged. block it At this time, an opening/closing door (not shown) that operates in conjunction with the exhaust fan 151 may be further installed in the exhaust port 150.

Thereafter, the control module 200 opens the first supply pipe 191 of the distribution device 190 to supply the dry air stored in the air tank 180 to the cold and hot air supply device 120.

At this time, the control module 200 switches the cold and hot air supply device 120 to the warm air mode so that the supplied air passes through an internal heater unit (not shown) and is heated. Heated high-temperature dry air is supplied to the supply duct 130 through the discharge port 121.

At this time, the supply duct 130 forms an extension pipe 131 extending toward the entrance 111 opposite the discharge port 121 of the hot and cold air supply device 120, so that the circulation path of the heated air is extended as long as possible.

At this time, the heated air discharged from the side opposite to the discharge port 121 is discharged and circulated diagonally to the exhaust port 150, thereby evenly heating the inside of the drying chamber 110.

At this time, the control module 200 receives the measured data value of the temperature measurement sensor CS1 installed inside the drying room 110 and controls the supply of heated air to maintain the preset drying temperature and drying time.

At this time, a filter device 160 and a dehumidifying device 170 may be installed inside the drying room 110, and the control module 200 determines when the value of the humidity measurement sensor (CS2) installed inside the drying room 110 is less than the preset value. In this case, the dehumidifying device 170 can be operated to continuously discharge moisture inside the drying room 110 until the humidity value reaches a preset value.

At this time, the filter device 160 is installed on the intake side of the dehumidification device 170, so that purified air in which contaminants have been filtered is supplied to the dehumidification device 170.

At this time, when the humidity measurement sensor (CS2) value reaches the preset value, the control module 200 determines that the drying process of the vehicle's paint film has been completed and supplies heated air through the hot and cold air supply device 120. Try to block it. To this end, the control module 200 blocks the first supply pipe 191 of the distribution device 190 and simultaneously stops driving the heater unit of the hot and cold air supply device 120.

At the same time, the control module 200 operates the exhaust fan 151 to quickly discharge the heated air inside the drying room 110 to the outside of the drying room 110.

At this time, the heated air discharged by the exhaust fan 151 passes through the filter device 160 and the dehumidifier 170 and is discharged as high-temperature dry air from which contaminants and moisture have been removed.

The discharged high-temperature dry air is compressed by the compressor 181 and sent to the air tank 180 and stored as high-temperature dry air.

Meanwhile, after the heated air inside the drying room 110 is discharged, the control module 200 processes the cooling part of the hot and cold air supply device 120 to supply cold air to the drying room 110.

At this time, the air supplied to the cooling unit can be supplied by sucking air from the atmosphere through the auxiliary inlet 123 provided in the cold and hot air supply device 120.

At this time, cold air is continuously supplied to the inside of the drying room 110, and the exhaust port 150 blocks the door to prevent cold air from escaping.

The control module 200 continues to supply cold air until the temperature inside the drying room 110 cools to the preset temperature, and when the value of the temperature measurement sensor (CS1) reaches the preset cooling temperature, the cold and hot air supply device Stop the operation of (120) so that the cold air supply is stopped.

Afterwards, the entrance 111 of the drying room 110 is opened to allow the vehicle on which the painting and cooling work has been completed to be shipped out, and then a new painting vehicle is brought in and left to wait.

Afterwards, the worker performs painting work on the vehicle using a spray gun. At this time, the working air supplied to the spray gun can be supplied by dry air stored in the air tank 180.

Afterwards, the painting work mode, drying work mode, and cooling work mode described above are repeatedly performed.

As discussed above, the present invention includes a heat treatment system equipped with a hot and cold air supply device and configured to perform a drying operation mode and a cooling operation mode based on measurement data from a temperature measurement sensor and a humidity measurement sensor installed in the drying room. According to the vehicle painting booth, by performing vehicle painting and drying work in the same work space, the inconvenience caused by moving the vehicle can be eliminated and the vehicle painting and drying work time can be shortened. And by drying the vehicle indoors, contamination of the painted surface by rain or dust can be prevented.

In addition, the present invention can quickly proceed with cooling and stabilization of the paint film by switching to a cooling work mode using a cold and hot air supply device after drying the vehicle, and cools the temperature in the drying room to a temperature suitable for the worker to perform painting work. This will improve the working environment of workers.

In addition, the present invention installs a blower that moves along a transfer rail in the drying room to blow away moisture on the surface of the paint film, thereby significantly shortening the time for drying the paint film on a vehicle, thereby improving productivity.

In addition, the present invention has the advantage of improving thermal efficiency by storing the hot air exhausted from the drying chamber in an air tank and recycling it by re-introducing it into the drying operation mode, rather than discarding it.

In addition, the present invention allows the moisture contained in the high-temperature air stored in the air tank to be removed through a dehumidifying device, thereby compressing and storing the dry air in the production air tank and using it to shorten the coating film drying time in the drying room. , it prevents moisture from forming on the surface of the steel plate, improves the adhesion of the paint, and improves the quality of the paint film.

In addition, the present invention contributes to improving the operator's work convenience and productivity by automatically repeating the drying work mode and cooling work mode by the control module.

As described above, the present invention is not limited to the specific preferred embodiments described above, and various modifications may be made by anyone skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, implementation is possible, and such changes fall within the scope of the claims.

110: drying room 111: entrance
120: Hot and cold air supply device 121: Discharge port
122: Inlet 123: Auxiliary inlet
130: Supply duct 131: Extension pipe
132: spray nozzle 140: blower
141: spray nozzle 142: transfer rail
143: Actuator 150: Exhaust port
151: exhaust fan 160: filter device
161: discharge port 170: dehumidifying device
180: air tank 181: compressor
190: Distribution device 191: First supply pipe
192: Second supply pipe 193: Third supply pipe
200: Control module CS1: Temperature measurement sensor
CS2: Humidity measurement sensor

Claims (6)

A drying room with an entrance on one side;
A cold and hot air supply device installed outside the drying room in a direction opposite to the entrance to selectively supply cold or warm air;
a supply duct forming a plurality of extension pipes and spray nozzles extending to discharge cold or warm air supplied from the cold or hot air supply device to a specific location in the drying room;
a blower installed standing upright on the floor of the drying room on both sides of the work passage with the vehicle in between, and provided with a plurality of spray nozzles to blow wind toward the vehicle;
an exhaust port formed on the floor opposite the entrance to the drying room;
A filter device connected to the exhaust port to filter out contaminants;
a dehumidifying device that removes moisture contained in the purified air that has passed through the filter device;
an air tank that stores dry air that has passed through the dehumidifying device;
a distribution device installed to selectively supply dry air from the air tank by branching it into a plurality of supply pipes;
A first supply pipe connected to the distribution device to supply dry air from the air tank to a cold and hot air supply device;
a second supply pipe connected to the distribution device to supply dry air from the air tank to the blower;
A third supply pipe connected to the distribution device to supply dry air from the air tank to the painting spray device; and
A control module that controls a hot and cold air supply device, a blower device, a dehumidifying device, and a distribution device to perform a drying operation mode and a cooling operation mode based on measurement data from a temperature measurement sensor and a humidity measurement sensor installed in the drying room; Includes,
The spray nozzle of the supply duct is detachably coupled to the tip of the extension pipe, and an angle-adjustable spray nozzle capable of adjusting the discharge angle is provided, and the extension pipe is connected to the narrow outlet side of the hot and cold air supply device and to the entrance end. A painting booth for a vehicle equipped with a heat treatment system that is formed to gradually expand. According to paragraph 1,
The cold and hot air supply device has a discharge port connected to the inside of the drying room, and is connected to the supply pipe of the air tank to form an intake port for supplying dry air, and further forms an auxiliary intake port for supplying external air, and the intake port and the auxiliary air supply are connected by a control module. A painting booth for a vehicle equipped with a heat treatment system that controls the flow path of the intake port on/off. delete According to paragraph 1,
When the supply duct is viewed from the front, the height (D2) of the outlet side extension pipe is formed to be higher than the height (D1) of the outlet side extension pipe of the cold and hot air supply device,
When the supply duct is viewed from a plane, the width (W2) of the outlet side extension pipe is formed to be wider than the width (W1) of the outlet side extension pipe of the cold and hot air supply device,
A painting booth for a vehicle equipped with a heat treatment system, characterized in that a spray nozzle in the form of a slit hole is formed long in the width direction of the extension pipe. According to paragraph 1,
The blower sprays dry air while reciprocating along a transfer rail formed on the floor of the drying room, is manufactured as a “ㄷ”-shaped gantry-shaped structure, and has spray nozzles on the vertical and horizontal pillars of the gantry structure. A painting booth for a vehicle equipped with a heat treatment system that is installed so that dry air is discharged toward the painted surface of the vehicle simultaneously from the left, right, and top directions of the vehicle. According to clause 5,
A painting booth for a vehicle equipped with a heat treatment system, characterized in that the spray nozzle is formed in a ball joint structure so that the discharge angle can be adjusted while coupled to the pillar part of the blower.