JP2521768Y2 - Coating equipment for UV-curable paint - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a coating facility used when a UV-curable paint is used as a paint in painting woodwork, plastic, metal and the like.

[0001]

2. Description of the Related Art Conventionally, the equipment for applying a UV-curable coating material is mainly of a flat transfer type. FIG. 1 shows an example. This painting equipment consists of an air blow booth 1, a waiting room 8, a painting booth 11, a setting room 14,
It comprises an ultraviolet irradiation device 2.

[0002] The air blow booth 1 is placed on a roller conveyor 7 and is intended to remove dust by spraying air on the surface of a workpiece 18 with an air gun. The air blown object 18 is sent into the waiting room 8 in a clean atmosphere,
And wait for the painting booth 11 to finish. When the coating booth 11 is opened, the object 18 to be coated during the waiting period is sent into the coating booth 11 via the transporting device 13 having a positioning function and the like, stops at a predetermined position, and is cured by the coating gun 12. Painting with a mold paint is performed. The painted object is the next clean setting room 14
The solvent contained in the paint is scattered while being transported on the transport device 15. The time for scattering the solvent varies depending on the type of the UV-curable coating material, but it takes about 10 minutes for high-quality finishing, and the transport speed is 2 m / m.
In the case of minutes, the length of this setting room is 20m
Degree is needed. The object to be coated, which has been set, is sent to the ultraviolet irradiation device 2 and is three-dimensionally irradiated by the upper surface irradiation ultraviolet lamp 4, the back surface irradiation ultraviolet lamp 3, and the both side irradiation ultraviolet lamp 5 while being conveyed by the conveyance device 6. , To cure the ultraviolet curable paint. UV irradiation device 2
The coating material that has come out of is also cured, and is ready for the next process.

[0003]

[Problems to be solved by the invention] In the conventional coating equipment,
Because it is a flat transfer and unidirectional, the length of the setting room is long, and there are space constraints,
The UV-curable paint has a great advantage in shortening the lead time because the curing time is on the order of seconds, but has a problem that it is difficult to introduce it due to the space of the factory.

[0004]

SUMMARY OF THE INVENTION The present invention aims to save space in a coating facility using an ultraviolet-curable paint.
The present invention is a coating equipment for UV-curable paints consisting of a coating booth, a setting room, an ultraviolet irradiation device, a transfer device, and the like. The length of the setting room can be reduced to about half of that of the conventional method by transferring the object to be painted while passing through the lower part of the painting booth. The aim is to provide a shortened, space-saving coating facility.

[0005]

FIG. 2 shows an embodiment of the present invention. This embodiment includes an air blow booth 1, an ultraviolet irradiation device 2, a waiting room 8, a coating booth 11, and a setting room 14. In the air blow booth 1, an ultraviolet irradiation device 2 is incorporated below the roller conveyor 7, and the irradiation device 2 has an ultraviolet lamp 3 for irradiating a back surface of the object to be coated and an ultraviolet lamp 4 for irradiating the top surface. It is composed of an ultraviolet lamp 5 for irradiation on both sides and a transporting device 6 arranged.

[0006] In the air blow booth 1, the object 18 to be coated is air blown on a roller conveyor 7 by air spray or the like to remove dust, and then sent to the waiting room 8 in a clean atmosphere.

The waiting room 8 includes a forward transfer device 9 and a return transfer device 10 and the like. The object to be coated waits until the coating booth 11 is located on the forward transfer device 9. The painting object 18 ahead of the painting booth 11
When the painting is completed, the object to be painted waiting in the waiting room 8 is sent to the painting booth 11.

The painting booth 11 of the clean specification comprises a transport device 13 equipped with a positioning function and the like, a coating gun 12, a return transport device 19, and the like.
The workpiece 18 sent to 1 moves on the transporting device 13 with a positioning function, stops at a predetermined position, and is then coated with an ultraviolet curable paint by the coating gun 12. The painting gun is painted by hand-blown or attached to a painting robot or decipro. The object 18 to be coated in the coating booth 11 is sent to the next setting room 14 of clean specification.

The clean setting room 14 includes a forward transfer device 15, a vertically moving transfer device 16, a return transfer device 17, and the like. The inside of the setting room 14 is maintained in a clean atmosphere. The object to be coated sent into the setting room 14 disperses the solvent contained in the ultraviolet-curable coating material while moving on the transfer device. The object to be coated is transferred from the transfer device 15 to the transfer device 16, further transferred to the return transfer device 17 by the transfer device, and the solvent is completely removed from the setting room 14 to the return transfer device 19 of the coating booth 11. The lengths of the transfer devices 15 and 17 in the setting room 14 are set so that a setting time sufficient to scatter the particles is secured.

The object to be coated conveyed from the setting room 14 passes through the return path transfer device 19 in the coating booth 11 and the return path transfer device 10 in the waiting room 8, and is set in the air blow blues 1. The workpiece 1 is sent to the irradiation device 2 and moved by the transport device 6.
The ultraviolet irradiation device 8 irradiates almost the entire surface, such as the back surface, the top surface, and the side surface, with ultraviolet rays to cure the ultraviolet curable paint.
The paint is cured and dried when it is carried out from the, and can be transferred to the next step. There is no problem if the ultraviolet irradiation device 2 is installed between the setting room and the painting booth or below the painting booth or the waiting room after the setting is completed. If an air blow booth or a waiting room is not provided due to hand blowing or the like, providing it below the painting booth further shortens the overall length of the painting equipment.

In the embodiment of the present invention, the setting room is transported in two stages, upper and lower, so that the line speed is 2 m / min and the setting time is 10 minutes. Can be reduced to about 10m, which is about half that of the conventional method, and the installation space of the UV irradiation device with a total length of about 4m can be saved by installing the UV irradiation device in the air blow booth. Approximately 40% reduction in overall length compared to the system (Approx.
m) and has a large space-saving effect. It is easy to install in existing factories, and the lead time can be shortened by making use of the curing and drying times in seconds, which are the characteristics of UV-curable paints. Painting can be realized.

[0012]

As described above, according to the present invention, a space-saving coating facility can be provided.

[Brief description of the drawings]

FIG. 1 is a side cross-sectional view of an embodiment of a conventional coating facility for ultraviolet-curable paint.

FIG. 2 is a side cross-sectional view of an embodiment of the coating equipment for ultraviolet-curable paint of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air blow booth 2 UV irradiation device 3 UV lamp for back irradiation 4 UV lamp for top irradiation 5 UV lamp for both sides 6 Transfer device 7 Roller conveyor 8 Weighting room 9 Forward transfer device 10 Return transfer device 11 Painting booth 12 Coating gun 13 Transfer device with alignment function 14 Setting room 15 Forward transfer device 16 Vertical transfer device 17 Return transfer device 18 Workpiece to be coated 19 Return transfer device

Claims (1)

(57) [Scope of request for utility model registration] An ultraviolet-curable coating equipment having a coating booth (11), a setting room (14) for dispersing a solvent, an ultraviolet irradiation device (2), a transfer device, and the like.
8) is a three-dimensional transfer, and has a vertical moving device (16) for moving the irradiated object, which has been subjected to the coating process, from the outward route to the return route in the setting room (14), and the return route is provided at the lower part of the forward route. Transported through the lower part of the painting booth (11)
A coating equipment for ultraviolet-curable coatings, characterized in that ultraviolet rays can be irradiated before and after that.