JPH06269709A - Moving work floor device for splashproof coating and coating method using the same - Google Patents

Abstract

PURPOSE:To automate the coating work of the outer wall surface of high buildings by button operation and simultaneously recovering splashed coating material in mist from the coated wall surface into a tank to prevent the contamination of workers and surroundings. CONSTITUTION:A double hood 1 is fixed to a moving work floor B that is freely ascendable and descendable by a fixing base A. A reciprocating base 9 for a spray gun 8 is screwed in a threaded shaft 7 that is pivotally provided in the double hood to combine the longitudinal reciprocating movement of the spray gun 8 and the vertical movement action of the moving work floor B. A suction gap 'a' of the double hood 1 is made to communicate with a coating material tank 12 through a suction pump 11 and also a lot of air jet nozzles 16 that are slidable on the outer surface of the double hood by a sliding plate 17 are provided. The gap between the wall surface to be coated and the double hood is intercepted by the compressed air from the air jet nozzles and the splashed coating material is entangled in the compressed air and sucked from the suction gap 'a' to recover it in a coating material tank. Thus the coating material is prevented from being splashed to the outside to prevent the contamination of workers, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving work floor device for splash-preventing coating, which is an automatic painting in which a wall-painting work at a construction site is incorporated into a moving work floor which is a scaffold by preventing the splashing of paint splashes. Regarding construction method.

[0002]

2. Description of the Related Art In the process of painting a wall surface in the process of constructing a high-rise building, in addition to the paint particles sprayed from a spray nozzle sticking to the wall surface, a large amount of paint splashes are scattered and released into the air. In order to prevent the stains from adhering to the houses and vehicles near the construction site, a sheet has been stretched over the outside of the temporary scaffold assembled on the construction wall to prevent the spread of the paint.

[0003]

In the conventional construction method in which the wall surface to be painted is covered with a sheet over a wide area and the paint is sprayed inside the wall surface, in the case of a high-rise building, the wall surface is always exposed to wind. Since it is inside, when the wind is strong, the sheet is greatly fanned and peeled off, and it is unavoidable that the paint splashes to the outside. This is a major factor that keeps workers from being shy, as it also stains the thinner that is mixed in with the worker's body clothes when they are finished, and the worker also sucks in the thinner that is mixed in when finishing. Since there is a large amount of paint, there are many problems such as a lot of wasted paint and a lot of expenses. The present invention solves the above-mentioned conventional problems by incorporating a spray nozzle into a vertically movable work floor to automate the coating.

[0004]

SUMMARY OF THE INVENTION The present invention incorporates a paint spray nozzle into a movable work floor that can be vertically moved up and down to automate coating.

The first aspect of the invention is a feature of the apparatus, in which a double hood having a horizontally elongated opening facing the wall surface is fixed on a work floor which can move up and down along a construction wall surface at a construction site. Inside, a paint spray gun that automatically reciprocates horizontally left and right with the required sloak is installed, and the gap between the double hoods serves as a spray suction gap that communicates with the paint tank via the vacuum pump. A large number of air nozzles that can be slid back and forth with a sliding plate are arranged along the outer surface of the hood, compressed air is blown from the air nozzles, and excess splashed paint from the spray gun is wound around the inside of the double hood. It is sucked by a vacuum pump from the surrounding suction gap and collected in a paint tank to prevent splashing of the paint around the spray gap, and while spraying the paint, it is installed in the operation of a spray gun that reciprocates horizontally left and right. Combining the vertical movement of the mobile work bed with Te, and is characterized in that an automatic coating evenly toward successively lower wall surfaces of the required width from above.

[0006] The second feature of the invention is the feature of the construction method. When painting the outer wall surface of a high-rise building, when moving up and down the moving work floor that can move along the outer wall surface By combining the reciprocating motion of the moving paint spray gun, the up, down, left and right operations of the wall coating are automated, and compressed air is sprayed from the outside to the gap around the double hood wall around the circumference of the spray hood. At the same time as it is rolled up, it is sucked from the suction gap of the double hood and collected in the paint tank to prevent splashing of paint splashes during painting work and reduce the waste of paint. It is a work floor method.

[0007]

In the present invention, the spraying work from the spray gun for wall coating is carried out in the double hood which is a horizontally long box-like wind shield, and almost no splash of paint is prevented, and the opening edge of the double hood is prevented. The mist-like paint that leaks from the gap between the wall and the wall and is scattered around is caught in compressed air from a large number of air nozzles arranged at the periphery and at the same time vacuumed from the double gap and collected in the paint tank. , The paint is not scattered around and the waste of the paint can be reduced. The spraying work is automatically carried out by automatically combining the movement of the spray gun that horizontally reciprocates with the lowering motion of the moving work floor. Even a skilled worker can construct efficiently.

The gap close to the wall surface to be constructed by the double hood fixed to the moving work floor surface is constant. Therefore, when the wall surface to be constructed is a U-shaped concave portion, the gap is large. At this time, the air nozzle around the double hood is slid on the fixed sliding plate to bring it close to the wall surface of the recessed portion, thereby forming a required gap.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Explaining the apparatus of the present invention with reference to the drawings, the present invention shows that a fixed stand A of a horizontally long box-shaped double hood 1 for preventing splashing of spraying work is moved in parallel along a wall surface and is automatically moved up and down. It is detachably fixed to the moving work floor B that moves up and down.
The opening edge of the double hood 1 is close to the wall surface C to be constructed in accordance with the construction side edge of the work floor. The opening edge of the inner plate 2 forming the suction gap a of the double hood 1 is made slightly shorter than the outer plate to form a step, and a large number of suction holes 3 are provided on the opening side. The bearings 4 and 4 provided with are fixed to both ends of the grooved plate 5, and the bearings 4 and 4 are supported by the screw shaft 7 directly connected to the motor 6, and the spray gun 8 having a paint spray nozzle reciprocates the screw shaft 7. The base 9 is screwed and the reciprocating base 9 is reciprocated by switching the limit switches of the bearings 4 at both ends using the groove of the groove plate 5 as a guide.

The suction gap a of the double hood 1 is the collecting box 1
The paint tank 12 with a hose leading to the suction pump 11 with 0
The hose is led out of the paint tank 12 and communicated with the feed pump 13 leading to the spray gun 8. On each of the four sides of the double hood, sliding plates 17 each having a large number of air injection nozzles 16 connected to a distributor 15 communicating with the air compressor 14 by means of hoses are slidably provided,
If necessary, the sliding plate 17 is moved in and out from the outer surface of the double nozzle to change the tip position of the air injection nozzle. The tip of each air injection nozzle is bent toward the inside of the double hood. The machine base 18 to which the double hood and each pump are fixed is fixed to the rotating shaft 19 so that the direction of the double hood can be rotated by 90 degrees in a vertical plane as required.

According to the present invention, the wall surface is fixed by fixing it to a vertically movable movable work floor that moves in parallel along the wall surface, and combining the operation of a spray gun for horizontally reciprocating paint horizontally with the vertical movement operation of the movable work floor. This is done automatically in the double hood, and the worker can apply the coating on the work floor outside the double hood by simply operating the switch to adjust the speed of the spray gun and the moving work floor.

Most of the paint splashed around the paint sprayed on the wall surface by the spray gun 8 is prevented from leaking in the double hood regardless of the presence of wind, and the construction wall surface and the double hood are opened. The fine spray paint that is about to leak from the edge and the gap is mixed and entrained by the compressed air from the jet nozzle 16 of each air, and a negative pressure is generated by the suction pump 11 from the end edge step of the inner plate 2 and the suction hole 3. It is sucked into the gap a, collected in the collecting box 10, drawn into the paint tank 12, and collected. Therefore, mist-like paint will not be leaked to the outside through the front end gap of the double hood and will be collected in the tank and will not be contaminated by workers or scattered by the outside, and at the same time excess paint will be collected and wasted. Can be reduced.

When the wall surface to be constructed has a U-shaped concave portion in the vertical direction, the double hood is fixed on the working floor and the sliding plates 17 on the respective surfaces to which the respective air injection nozzles 16 are fixed are fixed. It slides and protrudes forward to reduce the gap with the wall surface, making it easier to entrain the jet air from the nozzle and suck it in through the suction gap.

The reciprocating speed of the spray gun and the ascending / descending speed of the moving work floor should be appropriately adjusted and combined in accordance with the procedure of the coating work such as rough coating finishing, and the pressure of the air jet from the air jet nozzle is also blown. At the same time as adjusting the pressure of the paint sprayed from the gun, the suction negative pressure for this is also adjusted accordingly. Further, if necessary, the double hood can be rotated by 90 degrees to change the reciprocating motion of the spray gun in the vertical direction for coating.

[0015]

The present invention combines the operation of a paint spray gun that horizontally reciprocates in a double hood with the upward and downward movement of a movable work floor that moves in parallel along a wall surface to paint a high-rise building wall surface. Since it is automated, even unskilled people can operate it efficiently with the button operation, and at the same time, the double hood prevents splashing of the paint to the outside regardless of strong wind etc., and it may leak from the gap from the wall of the construction part Since the spray spray is blocked by compressed air and sucked in, it can prevent contamination of workers and external equipment buildings, and it is not necessary to cover the scaffold with a sheet during construction. Since it is collected in the paint tank and can be reused, there is an effect that the waste of the scattered paint can be eliminated.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a device of the present invention.

FIG. 2 is a partially cutaway side view of the device of the present invention.

FIG. 3 is a rear view showing the whole of the present invention.

[Explanation of symbols]

 1 Double Hood 2 Inner Plate 3 Suction Hole 4 Bearing 5 Groove Plate 6 Motor 7 Screw Shaft 8 Spray Gun 9 Reciprocating Platform 10 Assembly Box 11 Suction Pump 12 Paint Tank 13 Feed Pump 14 Air Compressor 15 Distributor 16 Air Injection Nozzle 17 Sliding plate A Fixed base B Moving work floor a Suction gap

Claims (2)

[Claims] 1. A double hood having a laterally long opening toward the wall is fixed to a movable work floor that can be moved up and down along a construction exterior wall of a construction site. The reversible rotating screw shaft laid on the bottom is screwed with a paint spray gun carriage to enable reciprocating movement, and the gap between the double hoods serves as a suction gap for the droplets that communicate with the paint tank via the vacuum pump. In addition, a large number of air nozzles that can be slid along the outer surface by sliding plates are arranged on the four sides of the double hood, and the sprayed paint from the spray gun is sprayed around the inside of the double hood by the compressed air blown from the air nozzles. Splash-preventive coating characterized by being entrained and collected in the paint tank from the suction gap, and by combining the reciprocating motion of the paint spraying gun with the vertical motion of the moving work floor, the wall surface of the required width is sequentially directed downward. Mobile work floor equipment. 2. A wall having a required width by combining the operation of a spray gun that reciprocates in a double hood with a moving work floor that moves along the outer wall in the coating work of the outer wall of a high-rise building. It is characterized by automating the downward coating of the double hood and sucking the sprayed paint that is about to leak by blowing compressed air into the gap between the wall of the double hood and collecting it in the paint tank from the suction gap of the double hood. A moving work floor construction method with splash prevention coating.