JPH0130543B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mobile booth for on-site painting, which performs spray painting at the assembly site of machines, etc. in an assembly factory.

Conventionally, finishing painting of machine tools, etc. completed at the assembly site was carried out by setting up a simple painting booth by surrounding the machine 1 with a screen 2, as shown in Figure 1, and by ventilating the air inside the painting booth. A ventilation system 3 is installed to suck in air, filter it, and exhaust it upwards to perform spray painting work. Since the ceiling is open even though it is surrounded by a screen 2, exhaust can only be exhausted within a range of 1 to 1.5 meters in front of the ventilation system 3, and in other locations, mist paint and organic solvents will spread, creating a negative working atmosphere for painting workers. Not only was it not very useful for improving internal air pollution, but it also polluted the air inside the factory, and there were concerns that it would have an impact on the health of other workers in the assembly factory.

In order to eliminate such conventional drawbacks, the present invention has the following features:
The entire object to be painted is covered with a retractable Jiyabara House, and an opening for air supply is provided in the ceiling of the Jiyabara House to introduce fresh air into the Jiyabara House, which is then exhausted from one side wall to create a downward airflow within the Jiyabara House, allowing the painter to The purpose is to improve the working atmosphere so that workers do not inhale contaminated air. Another purpose is to prevent air pollution within the factory by discharging the exhaust gas sucked from inside the painting booth to the outside of the factory.

Embodiments of the present invention will be described below based on the drawings.
In FIGS. 2 to 5, reference numeral 10 denotes a retractable bellows house constituting a coating booth that completely covers the object to be coated at the site where machines and the like are assembled. The inverted U-shaped frames 11 forming the skeleton of this jiabara house 10 are connected to each other in an extensible and retractable manner by link members 12 arranged in an X shape (see Fig. 4). A caster 13 in contact with is provided. The outside of each frame 11 is covered with a vinyl sheet 14 to form the ceiling and side walls. A hanger rail 15 is hung horizontally above the frame 11 at both ends, and a vinyl sheet curtain 16 is provided so as to be able to be opened and pulled. Vinyl sheet 1 that forms the ceiling of Jiyabara House 10
4 is provided with an air supply opening 17 to introduce fresh air from the factory into the booth. Matajiabara House 1
An exhaust opening 18 is provided in the vinyl sheet 14 forming the left side wall of the vehicle. An intake surface 20a of the ventilation filtration device 20 is arranged to face the exhaust opening 18. This ventilation filtration device 20
The air purifying section 21 houses a filter for filtering atomized paint and an activated carbon adsorbent for adsorbing organic solvents, and an outlet 21a of this air purifying section 21.
A forced exhaust section 22 connected to the
and an exhaust duct 23 that vigorously blows out the exhaust gas discharged from the exhaust section 22 toward the ceiling of the factory. The exhaust duct 23 is connected to the forced exhaust section 22 via a flexible duct 24, and is rotatably supported by a duct support 25. Further, the duct support body 25 is guided by the main body 26 so as to be movable up and down, and its up and down position can be controlled by driving a motor 35. The duct support 25 has a fifth
As shown in the figure, a lever 28 is provided with a linear actuator 27 and is provided on the pivot of the exhaust duct 23.
The actuating rod 27a is connected to the actuating rod 27a.
The angle change of the exhaust duct 23 can be controlled by the expansion/contraction control of a. As shown in Figure 2, a plurality of ventilation fans 31 are installed at regular intervals on the ceiling of the factory building 30, and the ventilation fan 31 closest to the painting booth installation position is
The vertical adjustment and angle of the exhaust duct 23 are adjusted so that the exhaust air is directed towards the exhaust duct 23.

In FIG. 5, 36 is a motor that drives the fan of the forced exhaust section 22, and 37 is a duct support 25.
This support rail 37 is a support rail integrated with the guide roller 38 supported by the fixed frame of the main body 26,
38, and its lower end is connected to a chain 40 stretched between a pair of sprockets 39, 39. Lower sprocket 39
The motor 35 is connected to the support shaft 41 via a reduction gear. 42 is provided on the intake surface side,
This is a lighting lamp that illuminates the inside of Jiabara House 10.
In addition, hanging lighting lights are appropriately placed inside the Jiyabara house 10 to brightly illuminate the areas to be painted. A plurality of air supply hoses for painting sprays are provided, and a painting spray can be connected to each air supply hose as appropriate using a quick joint. The power source for these illumination lights and the air supply pipe to the air supply hose are led out of the bellows house 10 and are detachably connected to the power source and air source inside the factory. A branch pipe is connected to the air supply pipe and communicated with a plurality of air nozzles provided along a wall surface opposite to the wall surface in which the exhaust opening is formed to generate air flow toward the exhaust opening. preferable.

According to the configuration of the present invention, since the bellows house 10 and the ventilation filtration device 20 are separate bodies, it is convenient to separate the two and suspend and move them using a crane. In particular, the bellows house 10 is expandable and retractable, so when it is contracted, it can fit into a very small space, which not only makes it easy to move, but also has the advantage of requiring only a small storage space when not in use.

Since it can be moved and installed easily in this way, it is easy to install a painting booth at the assembly site of the machine to be painted, and inside this booth, fresh air is introduced from the air supply opening 17 provided in the ceiling. A downdraft is created, providing favorable environmental conditions for spray painting operations and eliminating the risk of aspiration of atomized paint or organic solvents into the respiratory system. Ventilation filtration device 2
0 adsorbs most of the atomized paint and organic solvents with a filter, and some of it is released from the exhaust duct along with the exhaust, but since it is vigorously blown out towards the ceiling ventilation fan of the factory building, It has the advantage that it is effectively discharged outdoors and does not pollute the air inside the factory.

[Brief explanation of drawings]

Fig. 1 is an external perspective view showing a conventional device, Fig. 2 is an external slope view showing an embodiment of the present invention, Fig. 3 is a front view of the Jiyabara House, and Fig. 4 is a -
5 is a view taken along the - line in FIG. 3. 10... Jiyabara House, 14... Vinyl sheet, 16... Vinyl curtain, 17... Air supply opening, 18... Exhaust opening, 20... Ventilation device, 21... Air purification section, 22... Forced exhaust section, 23... Exhaust duct, 24... Flexible duct, 25... Duct support, 27... Linear actuator, 31... Ceiling ventilation fan.

Claims (1)

[Scope of Claims] 1. A movable extendable bellows house is installed and movable to cover the entire object to be spray-painted at the assembly site of machines, etc. in an assembly factory, and an exhaust opening is provided in one side wall of the bellows house. , an air supply opening is formed in the ceiling, a ventilation fan is placed outside the exhaust opening to suck in and exhaust the air inside the Jabara house, and an air filtration system that filters the air sucked in by the ventilation fan with a filter. A ventilation filtration unit is installed, and the exhaust port of the ventilation fan is connected to an exhaust duct that blows out exhaust air toward an outdoor exhaust ventilation fan installed on the ceiling of the factory. Paint booth that can be installed. 2. The movable paint booth according to claim 1, wherein the exhaust duct has a flexible duct that can be expanded and contracted and bent at a connection part with the exhaust port of the ventilation fan.