JP3240077B2 - Antistatic device for painting booth - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a static eliminator for a paint booth which is installed on a floor of an entrance of a paint booth and removes a charge of a worker entering the paint booth.

[0002]

2. Description of the Related Art The interior of a painting booth for painting an automobile body is maintained in a dust-free state in order to prevent a decrease in painting quality due to adhesion of dust. When a worker enters the painting booth, dust attached to clothes and the like of the charged worker is brought into the interior of the painting booth. Therefore, conventionally, an earth mat has been installed on the entrance floor of the painting booth. When a worker entering the painting booth steps on the earth mat, the worker's charge is removed and dust falls, thereby preventing dust from being brought into the painting booth.

[0003]

However, since paint particles are deposited on the floor surface of the painting booth, the paint particles adhere to the shoe sole and the earth mat of the worker, and the above-described charge removing action is impaired. In addition, there is a problem that much effort is required to clean the earth mat to which the paint particles adhere.

The present invention has been made in view of the above circumstances, and has as its object to provide a charge removing device for a paint booth which has an excellent charge removing effect and is easy to clean.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a paint booth static eliminator installed on a floor of an entrance of a paint booth to remove the charge of a worker entering the paint booth. A water tank formed of a conductive material, a step formed of a conductive material and housed inside the water tank, and having a large number of water holes opened on the surface thereof, and a water tap for supplying water to the water tank, And a drain tap for discharging water from the water tank.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention. FIG. 1 is a sectional view of a coating booth, FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG. 1, and FIG. It is an exploded perspective view of a removal device.

As shown in FIG. 1, the interior of a coating booth 1 formed in a tunnel shape is made up of a dynamic pressure chamber 5, a static pressure chamber 6, a coating chamber 7, and a collection chamber by a punching metal 2, a filter 3 and a cage 4. It is partitioned into a room 8.

A carriage conveyor 9 for transporting the body B of the automobile is laid on the bed 4 constituting the floor of the painting room 7, and painting robots 10 are provided on both left and right sides thereof.

A supply duct 11 connected to a blower (not shown) opens in the ceiling of the dynamic pressure chamber 5 and a collection chamber 8.
The lower end of the discharge duct 12 communicating with the atmosphere is opened.
Water tank 13 ₁ to the left and right sides that are connected to the water supply pump (not shown) of the collecting chamber 8, 13 _2, 13 with ₃ are provided, these water tanks 13 _1, 13 _2, 13 ₃ overflowing from which collecting water Plates 14 ₁ , 14 from which water flows down
_2, 14 ₃ are provided in a staggered manner.

The air supplied from the supply duct 11 passes through the punching metal 2 and the filter 3 and is supplied to the coating chamber 7 as a clean and smooth air flow, where it is not applied to the body B. It mixes with the paint particles and flows into the collection chamber 8. The paint particles contained in the air come into contact with the collecting water in the collecting chamber 8 and are collected, and only clean air is discharged from the discharge duct 12 to the atmosphere.

2 and 3, the charge removing device 20 installed on the floor of the entrance 15 of the coating booth 1 is formed by bending a metal plate into a rectangular tray. The water tank 21 is provided. The side wall 21 ₁ of the water tub 21 and the joint 23 is provided with a faucet 22, the joint 23 is connected to the water supply of water or the like. The side wall 21 ₂ of the water tub 21 and the joint 25 is provided with a drain plug 24, the drainage pipe 2 The joint 25 communicating with the collecting chamber 8
6 (see FIG. 1). The side wall 21 of the water tank 21
₃ is provided with a joint 28 connected to a drain pipe 27 (see FIG. 1) for overflowing excess water into the collection chamber 8.

The step 29, which is detachably accommodated in the water tank 21, is formed by welding a metal plate.
Four frame members 30, 31, 3 assembled in a rectangular frame shape
2 and 33 and a number of treads 34 connecting the pair of frame members 30 and 32 facing each other. A large number of elongated water holes are opened between the many treads 34 arranged in parallel. A plurality of triangular notches 34 ₁ are formed at the upper edge of each step board 34. As is clear from FIG. 3, when the step basin 29 is housed in the water tank 21 and is filled with water, the overflow joint 28 is so set that the water level is slightly higher than the upper edge of each of the step plates 34. The position is set.

The charge removing device 20 is connected to the painting booth 1
When the water tank 21 is filled with water by installing it on the floor of the entrance 15 and opening the water tap 22, excess water is discharged to the collection chamber 8 through the joint 28 and the drain pipe 27. Painting booth 1
When the worker who enters the room steps on the step 29 of the static eliminator 20, the worker's body is discharged through the conductive step 29 and the water tank 21, and dust adhering to clothes and the like falls down and is removed.

At this time, foreign substances such as paint particles adhered to the soles of the workers are effectively removed by the treads 34 having the notches 33 ₁ and at the same time are washed away by the water stored in the water tank 21. The water in the water tank 21 reliably conducts the sole of the worker and the platform 29 to further ensure the static elimination effect.

When foreign matter such as paint particles accumulates in the water tank 21 due to long use, the foreign matter is discharged to the collection chamber 8 together with the water in the water tank 21 by opening the drain plug 24. After that, drain water 2
4 may be closed and the water tap 22 may be opened. At this time, by simultaneously opening the water tap 22 and the drain tap 24 for a predetermined time, the water tank 21 and the stepping plate 29 can be cleaned.
In addition, since the water in the water tank 21 is discharged to the collection chamber 8, a special drainage device is not required.

Although the embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various design changes can be made.

For example, in place of the step 29 in the embodiment, a step 29 in which a large number of step plates 34 are combined in a lattice shape.
And a platform 2 with a perforated plate with many water inlets
9 can be used.

[0019]

As described above, according to the present invention, since the step pedestal made of the conductive material is accommodated in the water tank made of the conductive material, the paint particles adhered to the shoe sole of the worker. And the like can be effectively removed, and reliable static elimination can be performed. Moreover, by providing a water tap and a drain tap,
Since the supply of new water into the water tank and the discharge of water contaminated with paint particles and the like can be easily performed, the cleaning work of the static eliminator, which conventionally required a large amount of labor, can be easily performed. .

[Brief description of the drawings]

FIG. 1 is a sectional view of a painting booth.

FIG. 2 is an enlarged sectional view taken along line 2-2 of FIG. 1;

FIG. 3 is an exploded perspective view of a charge removing device for a painting booth.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Painting booth 15 Entrance 21 Water tank 22 Water tap 24 Drain tap 29 Step platform

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B05B 15/12 B05C 15/00 H05F 3/02

Claims (1)

(57) [Claims] 1. An antistatic device for a painting booth which is installed on a floor of an entrance (15) of a painting booth (1) and removes a charge of a worker entering the painting booth (1), comprising a conductive material. A water tank (21) formed of the above, a step (29) formed of a conductive material, housed in the water tank (21), and having a large number of water holes opened on the surface, and supplying water to the water tank (21). A charge removing device for a painting booth, comprising a water tap (22) for discharging water and a drain tap (24) for discharging water from a water tank (21).