KR20090088052A - Painting booth having function of temperature control for short stop operation - Google Patents

Painting booth having function of temperature control for short stop operation Download PDF

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Publication number
KR20090088052A
KR20090088052A KR1020080013376A KR20080013376A KR20090088052A KR 20090088052 A KR20090088052 A KR 20090088052A KR 1020080013376 A KR1020080013376 A KR 1020080013376A KR 20080013376 A KR20080013376 A KR 20080013376A KR 20090088052 A KR20090088052 A KR 20090088052A
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KR
South Korea
Prior art keywords
temperature
booth
temperature control
coating
operating
Prior art date
Application number
KR1020080013376A
Other languages
Korean (ko)
Inventor
박홍제
Original Assignee
주식회사 위일시스템
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 주식회사 위일시스템 filed Critical 주식회사 위일시스템
Priority to KR1020080013376A priority Critical patent/KR20090088052A/en
Publication of KR20090088052A publication Critical patent/KR20090088052A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/60—Ventilation arrangements specially adapted therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/10—Temperature; Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Coating Apparatus (AREA)

Abstract

A painting booth having the function of controlling temperature in short stop operation is provided to maintain constant temperature inside of the painting booth during the short stop operation. A painting booth having a function of controlling temperature during the short stop operation comprises: a booth body (1), heat emitting device (2), blower (4), and temperature sensor (5) having the booth body inside, and a device for controlling temperature in the constant temperature inside.

Description

Painting Booth Having Function of Temperature Control for Short Stop Operation

The present invention relates to a coating technology, and more particularly, to a coating booth having a function of maintaining a running temperature during a downtime by additionally providing a running temperature control function to a normal coating booth having a temperature control function. .

The coating booth refers to a booth in which a coating material is inserted into the coating material, and the liquid coating is applied to the surface of the coating material by spraying, etc., and then the paint is dried by maintaining a constant high temperature for a predetermined time. Such coating booths are used for the purpose of preventing the deposition of foreign substances during drying, shortening the drying time, preventing the volatile harmful substances contained in the paints from leaking into the air, and improving the quality of the coating. However, it is almost essential for the painting of objects requiring high quality coating, such as automobile bodies, home appliances, and various mechanical parts.

In the case of the general liquid paint spray method, the coating is performed 3 to 4 times including the basic coating (commonly referred to as "hado") and 10 times for the high quality coating, and the paint drying time that takes up most of the coating time. In order to shorten the paint booth is required.

In the coating booth, there is no spraying function of the liquid paint as described above, and there is a brush painting or spray coating from the outside, and it is carried in the booth and simply dried. In the case of powder coating, powder coating is applied to the surface of the coating by electrostatic spray coating method inside the coating booth and then maintained at a high temperature (180 ° C.) for a predetermined time (about 20 minutes) to form a coating film. The coating booth is also used in such a coating method.

One of the most important functions of the coating booth as described above is the drying function of the paint, to shorten the drying time to reduce the overall coating time and to maintain a constant high temperature inside the coating booth to achieve high quality coating It is necessary. Conventional paint booths must maintain the temperature in the paint booth at a high temperature (hereinafter referred to as "operating temperature"). For high quality paint, the operating temperature is 180 hours to 200 ° C for several hours (usually 2 hours). Are designed and operated to maintain them.

A normal coating booth supplies hot air generated by using a burner or electric heater to the inside of the painting booth, and discharges the air inside the painting booth to the outside in order to discharge volatile substances generated when the paint is dried. The filter etc. which remove the noxious component in the inside are provided. Recently, in order to maintain the temperature inside the painting booth at a constant operating temperature for a long time as described above, the electric sensor in the hot air supply or the booth is based on a sensor for sensing the temperature inside the painting booth and the temperature inside the painting booth received from the sensor. Coating booths having a control device for controlling the operation of the heater to control the temperature or flow rate of the hot air supplied into the booth body 1 or to control the amount of heat generated by the heating device have been developed. In order to improve energy efficiency, a recirculating paint booth that reheats the hot air discharged to the outside and supplies the inside of the paint booth again has been developed.

The paint booths developed so far do not supply hot air while it is not operating, so the temperature inside the paint booth maintains the ambient air temperature, while the booth is closed and the hot air is supplied to maintain the predetermined operating temperature. It is being operated by. Such a conventional paint booth takes a lot of time when the operation is stopped and restarted, the productivity is lowered, there is a lot of energy consumption problems. When the temperature of the coating booth drops below a certain level by interrupting the supply of hot air to the coating booth each time the operation is stopped, problems such as the paint hardening in the nozzle of the coating spray occur.

In addition, when resuming the painting work on the painting booth that is in operation, in order to increase the productivity of the painting work, when a large amount of hot air is supplied to the painting booth to increase the temperature inside the painting booth rapidly, There is a problem in that the quality of the coating is reduced by forming pores while they are released in large quantities at one time.

Therefore, during the operation stop time (hereinafter referred to as "operation time") to stop the operation of the coating booth for a relatively short time (about 1 to 3 hours), such as a worker's meal time, preparation time for the next work. It is a situation that the temperature inside the coating booth is kept at a high drying temperature without interrupting the supply of hot air to the coating booth. As such, when the temperature inside the paint booth is maintained at a high temperature, which is a high temperature even during the idle time, it is obvious that waste of energy occurs.

Among the paint booths developed so far, the paint booth is properly maintained to maintain the temperature inside the paint booth (hereinafter referred to as "operating temperature") during the above-mentioned idle time, thereby compromising productivity of paint, quality of paint and energy saving. The booth has not been developed.

As described above, the conventional coating booth maintains a high operating temperature during operation and completely cuts off the hot air supply during operation, which causes a problem in that the productivity of the coating decreases or energy is wasted.

Therefore, in order to make an optimum trade-off between paint productivity, paint quality and energy saving, a paint booth that maintains the internal temperature at a constant temperature is required even during a relatively short downtime.

The present invention is further provided with a non-operating temperature control function in a conventional coating booth having a temperature control function, a coating booth having a function to maintain the operating temperature during the idle time and a method for achieving such a running temperature control. It is about.

The means for controlling the temperature of operation may further include a function of controlling the temperature of the ordinary paint booth, or may further include a separate operation control device on the existing paint booth.

The coating booth equipped with the present inventors operating temperature control function maintains the temperature inside the coating booth at a constant temperature even during the operation time, which is a relatively short operation stop time, so as to optimally trade the productivity of the painting work, the quality of the painting, and the energy saving. Can be.

As shown in FIG. 1, the coating booth having the operating temperature control function of the present invention is generated in the heat generator 2, the heat generator 2 using the booth body 1, a gas heater, a coke heater, an electric heater, and the like. A blower (3) for supplying hot air, which is air heated by heat, to the inside of the booth body (1) by mixing it with the outside air temperature, and an exhaust device (4) for discharging air inside the booth body (1) to the outside The booth body 1 is mounted in a normal paint booth provided according to the temperature sensor 5 provided inside the booth body 1 and the temperature information of the booth body 1 received from the temperature sensor 5. And a temperature control device 6 for controlling the supply amount of hot air supplied into the interior.

The booth body 1, the heat generator 2, the blower 3, and the exhaust device 4 are the same as those of a paint booth having a normal temperature control function.

Thermocouples and the like may be used in the temperature sensor 5 in the same way as that of a painting booth having a normal temperature control function. Only one temperature sensor may be installed inside the booth body 1, but a plurality of places may be installed in a plurality of places to calculate an average temperature inside the booth body, and based on this, it is preferable to control the temperature inside the booth body.

The temperature control device 6 has the operation means of the "operating" and "stopping" functions and the temperature setting means for setting the operating temperature in the same way as the temperature control device of the ordinary paint booth, and in addition to the "operating" function And operating temperature setting means for setting the operating temperature of the operating temperature and the operating temperature. (Here, "operation" is an example of a term and refers to all terms that mean temporary stop.)

The temperature control device 6 stops the supply of hot air or surrounds the hot air when the temperature inside the booth body 1 received from the temperature sensor 5 is higher than a preset “operation” or “operation” temperature. Dilute it with air at a certain rate to supply low-temperature air to lower the temperature inside the booth body 1, and if the temperature inside the booth body 1 is lower than the preset "operating" or "operating" temperature, the hot air The supply of hot air is resumed or the high temperature hot air is supplied to increase the temperature inside the booth body 1 to maintain the inside of the booth body 1 at a set operating temperature or a non-operating temperature.

In the case of a normal coating booth, the operating temperature is maintained at 180 ℃ to 200 ℃, while the operating temperature is maintained at 80 ℃ without the side effects such as clogged nozzles of the coating equipment, experimental and the most reasonable in terms of productivity and energy saving It was identified as.

In another embodiment of the temperature control device 6, a separate operating temperature control PLC (6-1, PLC is an abbreviation of Programmable Logic Controller) in a painting booth having a normal temperature control function. It is used in the present specification because it is commonly used as a PLC in the field.) In addition, it is provided with this, it is possible to configure the temperature control device 6 to control the operating temperature by connecting it with the existing temperature control device. The idle temperature control PLC 6-1 is provided with an idle temperature setting means for setting the idle temperature, and an operation means with a "quick" function. In the case of using the non-operating temperature control PLC 6-1, if only the non-operating temperature control PLC 6-1 is added to the existing coating booth, it becomes a coating booth with the operation control function. There is an advantage to use.

In the case where the operating temperature control PLC 6-1 is additionally provided, the temperature control inside the booth body is as follows. That is, while the temperature control device 6 performs the temperature control function of "operation" or "interruption" in the same way as the temperature control device of the normal coating booth, "operation" operation is performed by the operation temperature control PLC 6-1. On the other hand, the idle temperature control PLC 6-1 converts the operating temperature value of the temperature control device 6 to the idle temperature set in the idle temperature control PLC 6-1. Then, the temperature control device 6 controls the hot air supply device or the heating device so that the temperature in the painting booth is maintained at the operating temperature.

When the "operation" operation is performed by the temperature control device 6 during the "operational" operation, the operation temperature control PLC 6-1 returns the set temperature of the temperature control device 6 to the original operating temperature value and controls the temperature. The apparatus 6 controls the hot air supply device or the heating device so that the temperature in the painting booth is maintained at the operating temperature. And when the "stop" operation with the temperature control device 6 even during the "operation" operation, the temperature control device 6 stops the operation of the heating device to stop the operation of the painting booth.

The hardware configuration and control program of the temperature control device 6 with the above operating temperature control function or the PLC 6-1 for operating temperature control in addition to the existing temperature control device provides a rudimentary knowledge in the field of control technology. If you have one, you can easily configure it.

In a large factory such as an automobile factory, a plurality of coating booths are operated. The coating booth having a running temperature control function according to the present invention includes a temperature control device 6 attached to a booth body 1 or a PLC for operating temperature control (6). -1) can be operated individually by directly operating the means of operation, and by connecting the temperature control device (6) or the operating temperature control PLC (6-1) of a plurality of painting booths to the central control room by wire or wirelessly In the central control room, each coating booth or a plurality of coating booths may be controlled in a collective manner.

The coating booth and the operating temperature control method having a running temperature control function of the present invention are not limited to coating using a liquid paint, and may be applied to a coating booth for powder coating or any drying booth other than painting.

The coating booth and the operating temperature control method of the present invention with the operating temperature control function are all industries requiring high quality painting such as automobiles, home appliances, and various mechanical parts, and all fields using a booth requiring temperature control such as a drying furnace. Can be used in the industry.

1 is a block diagram of a paint booth having a running temperature control function of the present invention.

※ Important component number

1: booth body, 2: heating device, 3: blower, 4: exhaust device,

5: Temperature sensor, 6: Temperature controller, 6-1: Idle temperature control PLC.

Claims (3)

The air blowing device (3) for supplying the inside of the booth body (1) by mixing hot air, which is air heated by the heat generated by the heat generated by the heat generating device (2), the heat generating device (2), and the outside air temperature as it is , An exhaust device 4 for discharging air in the booth body 1 to the outside, a temperature sensor 5 provided in the booth body 1, and a booth body 1 received from the temperature sensor 5. In the paint booth capable of a normal temperature control comprising a temperature control device (6) for constantly controlling the internal temperature of the booth body (1) according to the internal temperature information; The temperature control device 6 is a temperature control device having operating means of "operation", "stop" and "operation"; A coating booth having a running temperature control function, which has a function of controlling the internal temperature of the booth body 1 to be constantly maintained at an operating temperature or a running temperature. The method of claim 1, The temperature control device 6 is further provided with a temperature setting means for setting the operating temperature and the operating temperature value, characterized in that the operating temperature and the operating temperature can be set to any temperature value, operating temperature control function Paint booth provided with. The method of claim 1, The temperature control device 6 is configured to further include a separate operating temperature control PLC 6-1 in a normal temperature control device having functions of "operation" and "interruption". The idle temperature control PLC 6-1 includes an idle temperature setting means for setting the idle temperature and an idle operation means, and the idle temperature control is characterized by the idle temperature control PLC 6-1. Paint booth with control function.
KR1020080013376A 2008-02-14 2008-02-14 Painting booth having function of temperature control for short stop operation KR20090088052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080013376A KR20090088052A (en) 2008-02-14 2008-02-14 Painting booth having function of temperature control for short stop operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080013376A KR20090088052A (en) 2008-02-14 2008-02-14 Painting booth having function of temperature control for short stop operation

Publications (1)

Publication Number Publication Date
KR20090088052A true KR20090088052A (en) 2009-08-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150134048A (en) 2014-05-21 2015-12-01 금호환경기계(주) Painting booth
CN105396732A (en) * 2015-10-28 2016-03-16 孟玲琳 Furniture paint spraying room
KR102558455B1 (en) 2023-03-15 2023-07-21 이지창 Filtering unit using the floor of the painting booth

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150134048A (en) 2014-05-21 2015-12-01 금호환경기계(주) Painting booth
CN105396732A (en) * 2015-10-28 2016-03-16 孟玲琳 Furniture paint spraying room
KR102558455B1 (en) 2023-03-15 2023-07-21 이지창 Filtering unit using the floor of the painting booth

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