KR100361186B1 - Method cooling and apparatus for cooling automobile of body - Google Patents

Abstract

The present invention relates to a cooling system of an automotive coating process and a cooling method using the same, which are invented so as to rapidly cool by latent heat of evaporation by spraying ion-exchanged water or water with a spray means on a heated vehicle body in an automobile coating process. . The present invention provides a cooling chamber body configured to carry a car body of a car made with painting to a trolley installed at a lower portion thereof, and to cool the car body; A plurality of injection means installed on the ceiling of the cooling chamber so as to cool the vehicle body by injecting and evaporating process water onto the vehicle body moved to the cooling chamber body; An intake means installed at a right side of the cooling chamber to supply air from the outside air to the cooling chamber; In the cooling system of the automobile painting process comprising the exhaust means for discharging the process water injected and evaporated by the injection means to the outside, the upper part of the main body is ion-exchanged and supplied with pure water, the ion exchanged It is characterized in that it further comprises an ion exchange water supply device for cooling the pure water to a predetermined temperature and supplying it to the spraying means for spraying the vehicle body moved to the cooling chamber body.

Description

Cooling system of automobile coating process and cooling method using same {METHOD COOLING AND APPARATUS FOR COOLING AUTOMOBILE OF BODY}

The present invention relates to a cooling system of a car painting process and a cooling method using the same. More particularly, in the car painting process, ion exchange water is sprayed onto a heated car body by evaporation using an injection means to evaporate the latent heat phenomenon. The present invention relates to a cooling system of a car painting process and a cooling method using the same.

In general, automotive coating process is made up of a large degree of corrosion resistance, midway to improve the durability of the entire coating, and a top to finally beautiful appearance.

However, the painting process of the vehicle as described above must go through the drying process and polishing process after each process of undercoat, midway, and top coat, and in general, the car body heated in the drying process before going to the polishing process is cooled by air cooling method. I'm making it.

However, the cooling of the car body is to lower the temperature below 40 ℃ so that it can be polished in the polishing process after painting and drying. In the case of progress, the work efficiency is lowered, and furthermore, the operator may be impossible, and in particular, the cooling rate is further lowered in summer, leading to a decrease in productivity.

The present invention has been made to solve such a problem, an object of the present invention is to cool the heated car body rapidly to accelerate the polishing operation during the polishing step after the drying step in the painting process of the vehicle It is an object of the present invention to provide a cooling system and a cooling method using the same.

In addition, an object of the present invention is to rapidly cool the heated car body when drying the car body by using the latent heat of evaporation when the evaporated by evaporating by spraying the water finely using the injection means in the state in which the painted car body is heated. It is to provide a cooling system to enable the.

1 is a process chart showing the automotive painting process of the present invention

Figure 2 is a block diagram showing a cooling system in the automotive painting process of the present invention

* Explanation of simple signs in the drawings

100: cooling chamber 102: drive motor

104: conveyor 106: balance

108: body 110: intake duct

112: intake control valve 114: intake piping

115: exhaust pipe 116: blower

118 filter 120 exhaust duct

122: exhaust control valve 124: exhaust fan

126: injection means 128: air compressor

130: supply pipe 132: ion exchange water supply device

134: heat exchanger 136: cooler

The present invention for achieving the above object, and the vehicle body of the painted car is carried in the bogie installed in the lower portion, the cooling chamber body made to cool the vehicle body; A plurality of injection means installed on the ceiling of the cooling chamber so as to cool the vehicle body by injecting and evaporating process water onto the vehicle body moved to the cooling chamber body; An intake means installed at a right side of the cooling chamber to supply air from the outside air to the cooling chamber; In the cooling system of the automobile painting process comprising the exhaust means for discharging the process water injected and evaporated by the injection means to the outside, the upper part of the main body is ion-exchanged and supplied with pure water, the ion exchanged It is characterized in that it further comprises an ion exchange water supply device for cooling the pure water to a predetermined temperature and supplying it to the spraying means for spraying the vehicle body moved to the cooling chamber body.

The ion exchange water supply device is characterized in that it further comprises a heat exchanger and a cooler for ion exchange water, and cooling the ion-exchanged pure water to a predetermined temperature.

The spraying means further includes a spraying device having a spray nozzle for cooling by spraying ion-exchanged water onto the vehicle body, and a misting device having a mist nozzle for spraying and cooling the vehicle body by using the ion-exchanged water. It is characterized by.

The intake means includes an intake duct installed to supply air into the cooling chamber; A blower connected by a pipe connected to one side of the intake duct and configured to supply air filtered by a filter part; And an intake control valve installed between the intake duct and the blower to adjust the amount of air supplied by the blower.

The exhaust means includes an exhaust duct installed to discharge the evaporated ion exchange water to the outside of the cooling chamber; A ventilator connected to one side of the exhaust duct by a pipe and configured to discharge the evaporated ion exchange water without missing; It characterized in that it comprises an exhaust control valve installed between the exhaust duct and the exhaust fan to control the amount of evaporated ion-exchanged water discharged by the exhaust fan.

In addition, the present invention utilizes the latent heat of evaporation when the evaporated water is evaporated by spraying the ion-exchanged pure water to a heat-dried vehicle body by using the spraying means after the vehicle body coating using the cooling system of the automobile coating process configured as described above. There is provided a cooling method of an automobile coating process that enables rapid cooling.

Hereinafter, with reference to the accompanying drawings illustrating a preferred embodiment of the present invention in detail.

1 is a process chart showing a car painting process of the present invention, Figure 2 is a block diagram showing a cooling system in a car painting factory of the present invention.

One embodiment of the present invention is as follows.

Referring to Figure 1, the painting of the vehicle of the present invention is a surface treatment step 10 for the clean treatment of the surface of the vehicle body for painting, and the undercoat coating for corrosion resistance to the vehicle body made of the surface treatment An electrodeposition coating process (12), and a first heat drying process (14) for drying and heating the vehicle body on which the electrodeposition coating has been completed at 160 to 170 ° C; The first cooling step 15 for cooling by using a water shower ring (WATER SHOWERING) in order to cool the temperature of the vehicle body raised after the first heat drying step 14, and the coating film of the electrodeposition coating after the cooling is smoothed Polishing step (16) to be processed, the middle coating step (18) to electrostatic coating with the intermediate coating after the polishing step is finished, and the second heating and drying step of drying and heating to 130-140 ℃ after the intermediate coating 20; The second cooling step 21 for cooling the temperature of the vehicle body raised by the second heating and drying step 20 again by using a water shower ring (WATER SHOWERING), and to smoothly process the coating film of the middle coating 140-150 ° C., the coating film formed by the water-polishing step 22, the top-coating step 24 which finishes the water-polishing step 22, and then performs the top coat as the final step of coating. A third heat drying step 26 of heating and curing for about 30 minutes at 30 ° C., and a third cooling step 27 for cooling the temperature of the vehicle body which has been raised in the third heat drying step 26; After completing the undercoat, the midway, and the top coat as mentioned above, it consists of the inspection process 28 which examines the painting state of a vehicle body.

The first cooling process 15, the second cooling process 21, and the third cooling process 27 are cooled by a cooling system using latent heat of evaporation when the ion-exchanged water of the present invention is sprayed and evaporated.

The cooling system of the present invention is as shown in FIG.

Subsequently, referring to FIG. 2, the cooling system of the present invention is first heated and dried in a state where painting is completed, and then enters the cooling chamber 100.

The conveyor 104 is installed below the inside of the cooling chamber 100 so as to be rotatable, and drive motors 103 are installed at both ends of the conveyor 104.

The conveyor 104 is rotated by the operation of the drive motor 103.

In addition, a plurality of trolleys 106 are fixedly installed on the upper portion of the conveyor 104 so as to move linearly as the conveyor 104 rotates, and the trolley 106 carries the vehicle body 108 of the automobile. Done.

An intake means is provided on the right side of the cooling chamber 100.

The configuration of the intake means is as follows. First, a plurality of intake ducts 110 for supplying air to the right side of the cooling chamber are installed in the vertical direction, and the intake duct 110 is connected to the intake pipe 114 in an upward direction, and the intake pipe ( An air blower 116 is provided at an end of the air filter 114, and a filter 118 is installed at one side of the air blower 116 to filter clean air and supply clean air to the cooling chamber 100.

In addition, an intake control valve 112 is installed at an intermediate portion of the intake pipe 114 connecting the blower 116 and the intake duct 110 to adjust the intake air amount sucked by the blower 116.

On the other hand, the exhaust means is provided on the left side of the cooling chamber 100, the exhaust means first, a plurality of exhaust ducts 120 are provided in the longitudinal direction on the left side inside the cooling chamber, the exhaust duct 120 The exhaust pipe 115 is provided in an upward direction of the exhaust pipe 115, and an exhaust fan 124 for discharging the ion-exchanged water to be evaporated is installed at the end of the exhaust pipe 115.

In addition, an exhaust control valve 122 is installed at an intermediate portion of the exhaust pipe 115 connecting the exhaust fan 124 and the exhaust duct 120 to exhaust the air (or ion exchange water evaporated and converted into water vapor). Will control the amount of.

The ducts of the intake means and the exhaust means may be installed in any of the longitudinal or transverse directions, and preferably, wheels may be installed to be movable.

On the other hand, a plurality of injection means 126 is provided on the ceiling of the cooling chamber 100.

The spraying means 126 includes a spraying device 138 and a misting device 140 (or a humidifier) for spraying pure water or ionized water.

The misting device 140 is a device for misting, but in the embodiment of the present invention, the misting device is adopted, but it may be humidified using a humidifying apparatus having a humidifying nozzle.

A spray nozzle 142 is installed in the spray device 138 provided in the spraying means 126, and the spray nozzle 142 is installed to be rotated 180 degrees, preferably to rotate 90 degrees It is good to install.

The spray device 138 and the misting device 140 may spray at the same time, or spray the spraying device 138 first and spray the misting device 140 later, or spray the misting device 140 first and spray It is adjustable to spray the device 138 backwards.

This is adjusted according to a state in which the dry heated vehicle body 108 enters the cooling chamber 100 after the painting is completed.

In addition, the misting device 144 installed in the injection means 126 is provided with a mist nozzle 144, the mist nozzle 144 is also provided to be rotated 180 degrees, preferably rotated 90 degrees good.

Preferably, the spray nozzle 142 and the mist nozzle 144 may use a basic spray nozzle in terms of cost, and further, an automatic nozzle capable of electronically controlling spray and humidification may be used.

The spray nozzle 142 and the mist nozzle 144 as described above can be applied in various ways in the present invention because there are many kinds, which can be said to be within the technical scope of the present invention.

The spraying device 138 and the misting device 140 are installed in connection with the supply pipe 130 is installed to supply the ion exchange water, the supply pipe 130 is installed in connection with the ion exchange water supply device 132. .

The spraying device 138 and the misting device 140 are automatically installed by the air compressor 128 so that the spraying amount and spraying rate or the spraying amount and misting rate are controlled.

The ion exchange water supply device 132 is made of pure water by ion-exchanging by inputting a chemical after receiving the general tap water. At this time, the ion-exchanged pure water cools the car body 108 rapidly dried after being painted at a high temperature after painting the car body 108 of the automobile. The method of making the ion-exchanged water into ion-exchanged water by ion-exchange is conventional technique and will not be described in detail.

The ion exchange water supply device 132 includes a heat exchanger 134 and a cooler 136 on one side, and cools the pure water that has undergone ion exchange by operating the heat exchanger 134 and the cooler 136.

As described above, when ionization water (pure water) cooled to a predetermined temperature while being ionized as described above is finely sprayed using the injection means 126, it is converted into water vapor while being in contact with the vehicle body 108 at the same time. At this time, cooling occurs rapidly by the latent heat of evaporation.

In addition, the ion-exchanged water injected by the injection means as described above has the advantage of shaking off the foreign matter and dust on the vehicle body 108, it is discharged to the outside of the cooling chamber 100 by the exhaust means.

As described above, the present invention reduces the cooling time by spraying ion-exchanged water and lowering the car body 108 heated to 130 to 170 degrees below 40 ° C to 30 ° C by using latent heat of evaporation generated by contacting the car body. And, it does not need a separate outlet for discharging water, the evaporated ion-exchanged water is exhausted through the exhaust pipe 115 by the operation of the exhaust duct 120 installed in the cooling chamber (100).

The operation of the cooling system of the present invention as described above will be described in more detail below.

The drive motor 103 installed with the conveyor 104 is rotated forward or reverse to rotate the conveyor 104, and the painting is completed on the upper portion of the trolley 106 installed at the upper portion of the conveyor 104. The vehicle body 108 in a state of being heated and dried at a temperature is loaded and transferred to the cooling chamber.

As described above, the vehicle body 108 of a vehicle heat-dried at a high temperature reaches a heating temperature of 130 ° C to 170 ° C.

At this time, cooling is rapidly performed by the cooling system of the present invention.

When the vehicle body 108 of the vehicle enters the inside of the cooling chamber 100, a plurality of injection means 126 installed on the ceiling of the cooling chamber 100 is supplied to the predetermined temperature by the ion exchange water supply device 132. The cooled ion exchange water (pure water) is injected.

The ion exchange water (pure water) is sprayed through the spraying device 138 and the spray nozzle 142 provided in the spraying means 126, the misting device 140 and the misting nozzle provided in the spraying means 126 Cooling is achieved by being sprayed by 144 in contact with the vehicle body 108 of the motor vehicle.

Ion-exchanged water (pure water) sprayed from the spray nozzle 142 installed at the end of the spray device 138 is in contact with the vehicle body 108 of the vehicle to rapidly cool the elevated temperature, and is discharged while evaporated with water vapor. . At this time, the dust, stains, and the like on the coating of the vehicle body 108 of the automobile can be removed by drying together and discharged.

The evaporated ion exchange water (pure water) is sucked into the exhaust duct 102 as the blower 124 operates, and discharged to the outside air along the exhaust pipe 115.

If the speed of the water vapor discharged to the outside along the exhaust pipe 115 is too fast, rather than being cooled to a predetermined cooling temperature required by the vehicle body, the exhaust control valve 122 is adjusted to adjust the amount and speed of the steam to be exhausted. Adjust

Similarly, when the air entering through the intake duct 110 installed in the cooling chamber 100 is too fast or too slow, ion-exchanged water injected by the injection means 126 installed in the cooling system of the present invention ( Pure water) is scattered, so that the intake air sucked by the blower 116 is controlled by the intake control valve 112 installed in the intake pipe 114 to control the amount and speed of the intake air.

Control of the intake duct 110 and the exhaust duct 120 and the intake control valve 112 and the exhaust control valve 122, the blower 116 and the exhaust fan 124 is operated in conjunction with the injection means 126. The cooling system of the present invention can be rapidly controlled by using the latent heat of evaporation generated when the ion-exchanged water is evaporated.

Since the control between the components installed in conjunction with the above is controlled by using a normal control circuit, it will not be described in detail.

And, the present invention described as described above has been described as an embodiment, which is not limited to the preferred embodiment described above, without departing from the gist of the present invention claimed in the claims Of course, those skilled in the art will be able to perform various modifications, as well as such modifications will be within the scope of the claims described as the core elements of the present invention.

According to the present invention, by rapidly cooling the car body from a high temperature of the heat-dried to a low temperature in the car process, the painting process of the car body is shortened, thereby increasing the production of the car, and also a comfortable working temperature By improving the work efficiency, the quality of the coating is excellent.

Claims (6)

A cooling chamber body configured to transport the vehicle body of the painted vehicle to a trolley installed at a lower portion thereof, and to cool the vehicle body; A plurality of injection means installed on the ceiling of the cooling chamber so as to cool the vehicle body by injecting and evaporating process water onto the vehicle body moved to the cooling chamber body; An intake means installed at a right side of the cooling chamber to supply air from the outside air to the cooling chamber; In the cooling system of the automobile painting process comprising the exhaust means for discharging the process water injected and evaporated by the injection means to the outside, the upper part of the main body is ion-exchanged and supplied with pure water, the ion exchanged And an ion exchange water supply device for cooling the pure water to a predetermined temperature and supplying the purified water to spray means for spraying the vehicle body moved to the cooling chamber body. The method of claim 1, The ion exchange water supply apparatus further comprises a heat exchanger and a cooler for cooling the ion-exchanged pure water to a predetermined temperature. The method of claim 1, The spraying means further includes a spraying device having a spray nozzle for cooling by spraying ion-exchanged water onto the vehicle body, and a misting device having a mist nozzle for spraying and cooling the vehicle body by using the ion-exchanged water. Cooling system of the automotive coating process, characterized in that. The method of claim 1, The intake means includes an intake duct installed to supply air into the cooling chamber; A blower connected by a pipe connected to one side of the intake duct and configured to supply air filtered by a filter part; And an air intake control valve installed between the air intake duct and the air blower so as to control the amount of air supplied by the air blower. The method of claim 1, The exhaust means includes an exhaust duct installed to discharge the evaporated ion exchange water to the outside of the cooling chamber; A ventilator connected to one side of the exhaust duct by a pipe and configured to discharge the evaporated ion exchange water without missing; And an exhaust control valve installed between the exhaust duct and the exhaust fan to control the amount of evaporated ion exchanged water discharged by the exhaust fan. Cooling method of car painting process that can be cooled by using latent heat of evaporation when evaporated by spraying or humidifying ion-exchanged water by spraying means in the state of heat-drying after finishing painting on the exterior of car .