JPH06114306A - Duct apparatus for painting - Google Patents

Abstract

PURPOSE:To make cleaning work of an eliminator unnecessary wherein the eliminator is installed in a gas discharging duct and prevent the decrease in productivity. CONSTITUTION:In a duct apparatus 10 for painting, fine paint particles are sprayed to an object T to be painted and the paint fine particles which do not adhere to the object T to be painted are recovered in a storage tank 30 together with water sprinkled by a sprinkler 60. The fine paint particles which are not recovered are sucked by a gas discharging blow 50 and discharged outside. In this case, an eliminator 80 is installed in the inside of the gas discharging duct 40 and the paint particles are deposited on the surface of a sticking plate 84 of the eliminator 80 and they are removed. Also, water is sprinkled to the eliminator 80 through a nozzle 98 of a cleaning apparatus 90 and, together with water, the paint particles adhering to the eliminator 80 are recovered in the storage tank 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a painting duct device for collecting fine paint particles sprayed toward an object to be coated.

[0002]

2. Description of the Related Art Conventionally, as a coating duct device for improving the environment of the coating work position, the paint particles ejected from a spray gun and not adhered to an object to be coated are flowed out by a water screen, and the coating work position is also improved. There is one that sucks the air in the surroundings together with paint particles through an air duct and discharges it to the outside. In this coating duct device, a mechanism for removing the paint particles is provided in the exhaust passage in order to prevent the paint particles from being discharged to the outside. That is, as shown in FIG. 6, the illuminator 110 is provided in the exhaust passage 100. Erminator 1
Reference numeral 10 denotes a large number of attachment plates 112 made of an iron plate having a V-shaped cross section arranged over the entire passage area of the exhaust passage 100. Fine particles of paint (particle diameter of about 0.8 mm) sucked up by an exhaust blow (not shown). ) Is made to be a turbulent flow to adhere and remove paint particles on the surface of the adhesion plate 112.

[0003]

By the way, when paint particles adhere to the surface of the adhering plate 112 of the erminator 110 and the accumulated thickness A increases, the adhering plate 112 becomes larger.
The flow between them becomes worse, and fine particles of paint also flow to the exhaust blow side and adhere to the exhaust blow. As a result, the suction ability of the paint particles around the coating work position is lowered, and the working environment is lowered. For this reason, the illuminator 110 or the exhaust blower is regularly or as needed, the exhaust passage 1
It is removed from 00 and washed. Such a cleaning operation of the illuminator 110 and the exhaust blow has a problem in that the coating operation has to be temporarily interrupted and the productivity is lowered.

The present invention solves the above-mentioned problems of the prior art, and provides a painting duct apparatus which does not require washing work such as paint adhering means such as an erminator or exhausting means, and which does not reduce productivity. The purpose is to do.

[0005]

SUMMARY OF THE INVENTION The present invention, which has been made to solve the above-mentioned problems, is provided at a coating work position for spraying fine particles of a paint onto an object to be coated, and collects the fine particles of a particle which does not adhere to the object to be coated. In the coating duct device for spraying, in front of the coating work position, a spraying means for spraying in a screen shape, a storage tank for storing the water sprayed by the spraying means, and an exhaustion of paint particles not collected in the storage tank. Exhaust means for exhausting air to the outside through the passage, paint adhering means installed in the exhaust passage for temporarily adhering paint particles flowing in the exhaust passage, and the paint by spraying water toward the paint adhering means And a cleaning means for cleaning the adhering means.

[0006]

In the coating duct device according to the present invention, paint particles are sprayed onto an object to be coated, and the paint particles not adhered to the object to be coated are stored together with water sprinkled from the sprinkling means. It is collected in the tank. The paint particles not collected in the storage tank are sucked by the exhaust means and exhausted to the outside through the exhaust passage. At this time, a paint adhering means is provided in the exhaust passage, and the paint particles are removed by the paint adhering means. Further, the paint adhering means is sprayed with water from the cleaning means, and the paint fine particles adhering to the paint adhering means are collected together with water in the storage tank. Therefore, since the paint adhering means is washed with water sprayed from the washing means, it is not necessary to remove the paint adhering means from the exhaust passage to perform cleaning or replacement.

[0007]

Preferred embodiments of the present invention will be described below in order to further clarify the structure and operation of the present invention described above.

FIG. 1 is a sectional view showing a coating duct device 10 and its periphery. In FIG. 1, the painting duct device 10 is installed in front of a painting stand 20 standing upright at a painting work position P. The coating table 20 is, for example, a table on which a long coating object T such as an automobile back panel is placed. A coating operator sprays the coating material T onto the coating object T placed on the coating table 20 with a spray gun 22.

The coating duct device 10 includes a storage tank 30 formed under the floor surface FL, an exhaust duct 40, and an exhaust blow 50 provided downstream of an exhaust port 44 of the exhaust duct 40.
A sprinkler 60 for sprinkling water in a shower screen SH shape along the front wall portion 43 of the exhaust duct 40, and the exhaust duct 4
Erminator 80 installed in 0 and 8
And a cleaning device 90 for cleaning 0.

The storage tank 30 is formed over the floor FL and the exhaust duct 40, and temporarily stores the water that has flowed down in the shape of a shower screen SH. In the stored water W stored in the storage tank 30, paint particles that have not been coated settle and are collected from there.

The water sprinkling device 60 includes a water spouting gutter 70 which is horizontally installed along the front wall part 43 of the exhaust duct 40 and has a U-shaped cross section, and a water sprinkling part 61 which supplies water to the water spouting gutter 70. Is equipped with. The water supply unit 61 is a pump 62.
The pump 62 pumps up the stored water W in the storage tank 30 via the pipe 64 and the filter 66.
This is supplied from the water supply pipe 68a through the pipe line 68 to the sprinkling gutter 7
Supply to 0. The sprinkling gutter 70 has a plurality of coating work positions P.
It is installed horizontally across the water supply pipe 68
When the water from a overflows, it flows down along the front wall portion 43 of the exhaust duct 40 to form the shower screen SH.

The illuminator 80 is shown in FIGS.
As shown in FIG. 7, a plurality of sheets (9 sheets in the figure) are installed over the entire passage in the exhaust duct 40, and a plurality of attachment plates 84 made of a V-shaped iron plate are arranged in parallel with each other on the frame body 82. . The outer shape of the illuminator 80 is 10 cm in thickness, 40 cm in length, and 50 cm in width, and the adhering plates 84 are arranged at intervals of 5 cm.

The cleaning device 90, as shown in FIG.
A water supply conduit 94 installed above the illuminator 80,
The connection pipe line 9 branched from the water supply pipe line 94 at a predetermined interval, that is, at a position above the center of each luminator 80.
6 and a nozzle 98 connected to the tip of each connecting pipe 96, and the water supply pipe 94 is the branch pipe 9
It is connected to the pump 62 via 2. Therefore,
A part of the water pumped up by the pump 62 passes through the branch pipe line 92, the water supply pipe line 94, and the connecting pipe line 96, and
Water will be constantly sprayed from No. 8 toward the illuminator 80.

Next, the painting work and the like using the painting duct device 10 will be described. Now, when the pump 62 is driven and the stored water W is pumped up from the storage tank 30, the water flows through the pipe 64, the filter 66, and the pipe 68, and then the water supply pipe 68.
It is supplied from a to the sprinkling gutter 70. The water overflowing from the sprinkling gutter 70 flows down along the front wall portion 43 of the exhaust duct 40 into the shower screen SH, and returns to the storage tank 30. At the same time, the water pumped by the pump 62 is sprayed from the nozzle 98 toward the illuminator 80 through the branch pipe line 92, the water supply pipe line 94, and the connecting pipe line 96.

In this state, the coating operator sprays fine particles of paint onto the object T to be coated on the coating table 20 with the spray gun 22 for coating. Part of the paint particles that have not adhered to the coating object T are mixed in the shower screen SH and are removed to the storage tank 30. In the storage tank 30, the fine particles of paint settle and are regularly removed.

On the other hand, paint particles that have risen up near the coating work position P and have not been removed by the shower screen SH are sucked together with air from the lower end opening 42 of the exhaust duct 40 by suction from the exhaust blower 50, and the exhaust duct 40.
It is sucked in and rises upward. At this time, the exhaust duct 40
The air that rises above becomes a turbulent flow at the dog-legged adhering plate 84 of the erminator 80, and temporarily adheres to the surface of the adhering plate 84. The air from which the fine particles of paint have been removed by the erminator 80 is exhausted to the outside by the exhaust blow 50.

At this time, since the erminator 80 is constantly sprayed with water through the nozzle 98, the paint particles temporarily adhering to the adhering plate 84 are removed without being dried by the water from the nozzle 98, and are stored together with the water. Run down to tank 30.

Therefore, the paint particles adhered to the luminator 80 are removed by spraying water from the nozzle 98 of the cleaning device 90, so that it is not necessary to remove the luminator 80 from the exhaust duct 40 for cleaning. Therefore, the eraminator 8
There is no need for the cleaning work of 0, and the coating work does not have to be interrupted during that time, so the productivity does not decrease.

Further, since a part of the water pumped up from the storage tank 30 by the pump 62 is used as the water for removing the paint particles of the erminator 80, it is not necessary to install a separate pump and the equipment is simple. Is.

Further, since the fine particles of the paint are mostly removed by the erminator 80 by being constantly sprinkled with water, and the fine particles of the paint do not flow to the exhaust blower 50 side, it is not necessary to wash the exhaust blower 50.

The present invention is not limited to the above-described embodiments, but can be carried out in various modes without departing from the scope of the invention, and the following modifications can be made.

(1) In the above embodiment, the cleaning device 90
The water is always sprayed on the illuminator 80, but may be sprayed every predetermined time or at any time. Further, although the water in the storage tank 30 is used as the water supply source of the cleaning device 90, another water supply source may be used.

(2) The cleaning device 90 of the above embodiment uses the raindrop-shaped nozzle 98, but the luminator 8 is used.
The shape of the nozzle is not particularly limited as long as it is a nozzle that wets the surface of the attachment plate 84 of No. 0, and a nozzle that pipes near the attachment plate 84 of the erminator 80 and sprays water may be used.

(3) The shape of the adhering plate 84 for adhering the coating fine particles in the illuminator 80 is not limited to the V shape, and for example, a configuration is adopted in which the eliminator portion 80A composed of a flat adhering plate 84A as shown in FIG. 5 is combined. However, in any case, any structure may be used as long as it is suitable for adhering the circulating paint particles.

[0025]

As described above, according to the coating duct apparatus of the present invention, the coating material is sprayed from the cleaning means to remove the coating fine particles attached to the coating coating means, so that the coating coating means It is not necessary to carry out cleaning work or the like after removing the air from the exhaust passage, and productivity is improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram illustrating a coating duct device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram illustrating a main part of the coating duct device according to the embodiment.

FIG. 3 is an explanatory view illustrating an erminator and a cleaning device.

FIG. 4 is an explanatory diagram illustrating an arrangement state of an erminator and a nozzle.

FIG. 5 is a cross-sectional view showing an eliminator according to another embodiment.

FIG. 6 is a configuration diagram illustrating a main part of a conventional coating duct device.

[Explanation of symbols]

 10 ... Painting duct device 20 ... Painting base 30 ... Storage tank 40 ... Exhaust duct 50 ... Exhaust blow 60 ... Sprinkler device 61 ... Water supply unit 62 ... Pump 68 ... Pipe line 70 ... Sprinkler gutter 80 ... Erminator 84 ... Adhesive plate 90 ... Cleaning device 92 ... Branch pipe 94 ... Water supply pipe 96 ... Connection pipe 98 ... Nozzle FL ... Floor surface P ... Painting work position SH ... Shower screen T ... Painting object W ... Stored water

Claims (1)

[Claims] 1. A coating duct device provided at a coating work position for spraying paint particles onto an object to be coated and for collecting paint particles not adhering to the object to be coated, wherein a screen is provided in front of the painting work position. Installed in the exhaust passage, a sprinkling means for sprinkling water in a uniform shape, a storage tank for storing the water sprayed by the sprinkling means, an exhaust means for exhausting paint particles not collected in the storage tank to the outside through an exhaust passage, A paint adhering means for temporarily adhering paint fine particles flowing through the exhaust passage, and a cleaning means for cleaning the paint adhering means by spraying water toward the paint adhering means. Duct device for painting.