JP2877261B2 - Wall coating equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall coating apparatus suitable for coating a large structure such as a super-high-rise chimney.

[0002]

2. Description of the Related Art Conventionally, in a spray gun type coating apparatus used for coating a wall surface of a structure, as shown in a vertical sectional view of FIG. The paint is sprayed from the spray gun 21 provided, and the paint is applied.
The paint mist filled in 0 is discharged from the exhaust port 24 after the paint component is collected by the filter 23. A part of the discharged air is guided to the duct 25 to form an air curtain, so that the mist is prevented from flowing out of the gap between the front edge of the hood 20 and the wall surface 1 and scattering.

However, such an apparatus is effective under the condition that the wall surface 1 is formed flat and the gap with the front edge of the hood 20 can always be kept very small. Because the wall 1 has large irregularities and obstacles, the gap between the front edge of the hood 20 and the wall 1 is several tens of mm.
It is necessary to open the paint mist, and the effect of preventing the paint mist from being scattered is reduced. In particular, when working at a high place, the wind is strongly applied and the outflow of the paint mist is promoted, and there is a possibility that the paint mist may be damaged outside.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been proposed in view of such circumstances, and effectively prevents paint mist in a hood from flowing out and scattering to the outside, and has a high quality. It is an object of the present invention to provide a wall coating apparatus capable of forming a painted surface.

[0005]

Means for Solving the Problems] The present invention therefore includes a carriage movable along the wall surface to be coated, an outer hood front opening attached to the carriage, the wall <br/> within the outer hood an inner hood front opening disposed substantially parallel to movably to the surface, can roll the wall surface abuts within the inner hood
To, and it is disposed vertically to exist appropriate intervals laterally Resona
The shaft length is slightly shorter than the vertical width of the inner hood
A pair of rollers which are characterized in that comprising a spray gun installed in the inner hood to inject paint facing the <br/> wall between the pair of rollers.

[0006]

According to the wall coating apparatus of the present invention, a pair of rows is provided.
Wall painted with paint sprayed from a spray gun
Acts to set the lateral area of the surface. Therefore
Painted walls partitioned by the pair of rollers by injection paint disposed within the inner hood is performed. then
A pair of rollers of this is, flowing out to the outside of the paint mist, Fei
Act to prevent dispersion. Also, if necessary,
Auxiliary hood in the gap between the end surfaces and the inner hood of each roller
By placing the paint mist to the outside, the outflow,
Spattering can be reliably prevented.

[0007]

1 is a longitudinal sectional view, FIG. 2 is a transverse sectional view, and FIG.
Is a rear view, and FIG. 4 is an explanatory view of a painting procedure.

In FIGS. 1 to 3, reference numeral 2 denotes a bogie.
The trolley 2 drives wheels ( not shown) to drive the wall 1
It has become possible to move arbitrarily along
You. Reference numeral 2a denotes a suction for fixing the carriage 2 to the wall surface 1 by suction.
The board is shown. On the upper side of the base vehicle 2 are oblong outer hood 3 of the front opening is projected, the inside of the outer hood 3, the lateral dimensions much shorter than the lateral length of the outer hood 3, front The inside hood 4 of the opening is housed ,
A female screw 6 is attached to the moving part 5 attached to the back of the hood 4.
Is formed, the female screw 6, externally threaded shaft 7 which is supported so as to be substantially parallel to the wall surface 1 outside the hood 3 has been screwed
Te, motor 9 installed on the outer hood 3 via the belt 8 is connected to an end portion of the externally threaded shaft 7.

In the inner hood 4, a pair of vertically oriented rollers 10 , 10 spaced at appropriate intervals in the horizontal direction are attached by a spring 11 so as to be urged toward the front surface so as to come into contact with the wall surface 1. ing. Rollers 10, 10
The length of the shaft is slightly shorter than the vertical width of the inner hood 4.
Is formed. Further, the pair of rollers 10 , 10
A spray gun 12 is provided so that the paint can be sprayed toward the wall surface 1 partitioned by. Outside hood 3
An air supply port 13a and an exhaust port 13b are provided on the rear panel, respectively.
And an air supply port 1 inside the outer hood 3.
Air supply duct 13c communicating with 3a and exhaust port 13b
And an air supply duct 13d
13c and one end of the exhaust duct 13d are wall surfaces, respectively.
1 is opened with a small gap. By driving the fan unshown feeding air from the air supply port 13a to the air supply duct 13c, it has become so that can exhaust through the filter unshown than as an exhaust port 13b of the exhaust duct 13d. Furthermore, the shaft end face of each roller 10 and the inner hood 4
The auxiliary hood 14 is mounted in the gap between the auxiliary hood 14.

[0010] In such an apparatus, the move to the position where the carriage 2, then adsorbed fixed with a sucker 2a, while supply and exhaust to drive a fan forced shown, injects paint from the spray gun 12 And a pair of rollers 10 , 10
Is applied to the wall surface 1 partitioned by. At the same time,
Drive the motor 9 to make the inner hood 4 almost flat with the wall 1
Moving to row, the spray gun 12 also moves laterally integrally with the inner hood 4, the paint of the wall 1 in a range which is partitioned into an outer hood 3 can line Ukoto. At that time,
In addition, the coating area is set by the rollers 10 and 10
In this way, it is possible to paint without unevenness. This painting work
By moving the carriage 2 in the vertical direction, the painted surface 15 can be formed as shown in FIG .

At this time, the inside of the inner hood 4 is almost sealed by closing the left-right gap between the front edge of the hood 4 and the wall surface 1 by a pair of rollers 10 , 10 . Only a small amount of paint mist leaks from the outside. Further, with respect to the paint mist that has flowed out, the air sent from the air supply duct 13c is discharged to the air supply duct 13c.
Rutotomoni is prevented from flowing outside by the air curtain formed by ejected from the gap between the end openings and the wall surface 1,
Exhaust duct 13d is sucked in, through the outlet 13b, Ru is discharged to the outside after removing the paint components in the filter.
Note although the left and right of the gap between the inner hood 4 front edge and the wall 1 by a roller 10, 10 of the pair as described above is reliably shielded, rollers 10, some of the mist outlet at both axial ends direction of 10 considered Ru. But the amount is very small
If necessary, as shown in the figure, an auxiliary hood 14 is attached to the gap between the shaft end surfaces of the rollers 10 and 10 and the inner hood 4.
In this way, shielding at this point can be achieved .

Thus, the painting operation is performed when the bogie 2 is set at a predetermined position. Next, the procedure of coating the entire area of the wall surface 1 while sequentially moving the bogie 2 will be described with reference to FIG. Assuming that the traveling speed is v ₁ , the reciprocating speed of the spray gun 12 is v ₂ , the coating width is W, and the coating pitch is H, setting is made such that W / v ₂ = H / v ₁ as shown in the figure. It is possible to paint continuously with a simple pattern without leaving unpainted. In some cases, two coatings are performed in order to improve the uniformity of coating, but W / 2v ₂ = 1 / 2H
/ V _1, which can be realized by setting the reciprocating speed v ₂ of the spray gun 12 to double from this relationship.

[0013] As this, according to the apparatus of this embodiment,
An inner hood 4 is movably installed inside the outer hood 3, and furthermore, a shaft is provided inside the inner hood 4 at an appropriate interval.
A pair of rollers 10 , 10 whose length is slightly shorter than the vertical width of the inner hood are arranged, and a pair of rollers 1
From the spray gun 12 to inject a coating material toward the wall surface between 0,10 and paint. Thus inject painted on the wall 1 partitioned by the roller 10, 10 of the pair, the inner hood 4 Make sure that the paint is sprayed close to
Thus, the paint mist inside the inner hood 4 can be effectively prevented from flowing out and scattering. In addition, because of the spray coating, the coating adheres securely to the weld bead portion and the step portion. By these means, a predetermined film thickness can be ensured even in the painting work of a high place wall surface, and high-quality painting work without any unpainted portion can be performed.

[0014]

As described in detail above, according to the present invention,
The following effects can be obtained. (1) Inside the outer hood, an inner hood with a spray gun
The trolley is stopped,
A wide range of coatings can be performed. (2) A pair of rollers is used to set the horizontal area of the coating.
Since it has a function to prevent paint mist scattering,
High quality painted surface with adjustable area and no smear
In addition, paint mist can be prevented from scattering.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the wall coating device of the present invention.

FIG. 2 is a cross-sectional view.

FIG. 3 is a rear view.

FIG. 4 is an explanatory diagram of a painting procedure.

FIG. 5 is a longitudinal sectional view of a conventional coating apparatus.

[Explanation of symbols]

 Reference Signs List 1 wall 2 cart 3 outer hood 4 inner hood 5 moving part 6 screw 7 rotating shaft 8 belt 9 motor 10 roller 11 spring 12 spray gun 13a air supply port 13b exhaust port 13c air supply duct 13d exhaust duct 14 auxiliary hood 15 painted surface

Continuation of the front page (56) References JP-A-2-78457 (JP, A) JP-A-2-198680 (JP, A) JP-A-58-202067 (JP, A) JP-A-4-338258 (JP) JP-A-52-12253 (JP, A) JP-A-62-298468 (JP, A) JP-A-62-65761 (JP, A) Fully open Showa 60-5456 (JP, U) Really open 62-5849 (JP, U) Japanese Utility Model 4-91761 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) B05B 13/00-13/04 B05B 15/12 B05C 11 / 02

Claims (1)

(57) [Claims] A trolley movable along a wall surface to be coated ;
An outer hood front opening attached to the carriage, and an inner hood front opening disposed substantially parallel to movable with the wall surface in the outer hood, rolling with the wall surface abuts within the inner hood vertical movement can be, and in presence of appropriate lateral spacing
And the shaft length is smaller than the vertical width of the inner hood.
A pair of rollers formed in the short dimension interference, characterized in that comprising a spray gun installed in the inner hood to inject paint toward the above wall surface between the pair of rollers, wall Painting equipment.