JPS62180768A - Painter for long-sized shape material - Google Patents

Abstract

PURPOSE:To coat a paint on a long-shaped shape material so as to uniformly wet the entire surface thereof and to recover the residual paint by providing a paint spray nozzle which is so positioned as to allow the paint to collide against a paint scattering chamber and to splash therefrom and providing a solvent spray nozzle in such a manner that the solvent reaches the scattering chamber. CONSTITUTION:The paint scattering chamber 5 is provided in a booth 4 in a manner as to enclose the long-sized shape material A in the stage of spraying the paint to the long-sized shape material such as lip channels. The paint spray nozzle 10 is so positioned that the sprayed paint collides against the inside wall of the chamber 5 or the object in the chamber and generates the splashed paint mists in the chamber. The solvent spray nozzle 15 is so provided that the solvent reaches the inside wall of the chamber 5 and the object in the chamber. Then the paint scatters to mists and therefore the paint can be uniformly coated on the surface of the shape material and the residual paint can be recovered by the solvent. The device is thus made economical.

Description

[Detailed Description of the Invention] A. Field of Industrial Application 1 □The present invention provides rust prevention for a long profile member of a lip-shaped and groove-type end □
Spraying paint, such as lacquer, is related to a coating device for painting.
１′□口“Yodorai Technology”
``□□ ``'When retarded channel steel and H□U steel are conveyed to a coating machine using a conveyor and sprayed with rust-preventing paint continuously, paint particles and fused mist are dispersed into the air and enter the work room. When thinner or the like is used as a solvent to contaminate items, there is a risk that long-term inhalation may cause serious damage to the respiratory and nervous systems of workers. Conventionally, paint spraying is carried out by storing parts in a large painting booth and using an axial fan installed on the ceiling of the booth to spread the coating and release the solvent particles below C, which are referred to as paint wealth. I was doing it.

However, although installing a painted varnish in this way is effective as an environmental measure, it does not avoid contamination of the filters, etc. placed in the axial flow fan of the menu maple, and therefore it is difficult to clean and replace them. In addition, in order to apply a sludge film evenly in accordance with the shape of the C-shaped steel for the seventh part to be painted, adjust the individual bushes and position i of the spraying nozzle. It had the disadvantage that the paint was likely to be thick and thin, and the paint had to be adjusted and the pattern was also clumpy. House top, Nibnis 1
Some models also have drawbacks such as a lot of paint being wasted because the residual paint inside is not collected but released outside. □C Problems that the invention aims to solve This product was provided to solve the problem of paint spraying, and it prevents a small amount of paint mist from scattering unnecessarily in the paint booth, making it easier to maintain the booth's exhaust system, etc., and making the entire booth smaller in capacity. To obtain a coating device for a long material in which the paint mist that is diffused at the same time as the paint is sprayed is uniformly spread over several surfaces of the long material, and the paint that is not applied is collected and reused. The purpose is to

2. Means for Solving the Problems The problem solving means of the present invention is to provide a paint scattering chamber 5 surrounding the long type IA that is sent to the painting position, and to , obstruction rod 18, etc.) is positioned so that the paint hits and bounces off to form a paint mist, and a paint spray nozzle lυ is installed in the scattering room 5 yen.
Solvent C is applied so that the solvent reaches the inner wall of the scattering chamber 5 and the objects in the room.
Thinner) is sprayed using a long-shaped material coating device equipped with a nozzle and a solvent outlet 14a at the bottom of the scattering chamber 5.

E. Effects Below, we will explain the case where a lip-shaped channel steel is used as the long type and an anti-rust paint is applied to it. The channel steel is first subjected to pretreatment such as cracking and removing rust. In this way, the channel steel is connected to the entrance 8 of the scattering chamber 5 as described below.
When the paint sprayer from the air spray set is sent to the nozzle 10, a rust-preventing paint, for example, red lead paint mixed with a drying oil vehicle is ejected from the same nozzle. The sprayed paint hits the surface of the channel steel in the room and bounces off with the air, as shown in Figure 2, and hits the indoor walls and obstacle rods as shown in Figure 4. 8, it bounces off and disperses. This rebound further hits other objects and bounces off, and the generated turbulence forms a paint film that fills the scattering chamber 5.

In this state, the channel steel advances to the outlet, and the entire surface is sprayed with paint mist together with the paint that is directly sprayed, forming a uniform paint film on the surface of the channel steel. When the channel steel escapes from the scattering chamber and the nozzle 10 stops spraying the paint, the nozzle 1 stops spraying the solvent.
5 sprays a solvent, for example thinner, onto the inner wall of the scattering chamber 5 and the interior contents. As a result, the paint in the room that is being oxidized and hardened is dissolved and accumulates at the bottom of the scattering room along with the thinner. The paint dissolved in the thinner is discharged from the discharge port 14a and collected.

EXAMPLE Embodiment 1 of the present invention will be explained in detail with reference to FIGS. 1 to 3. A is a long profile material.1. In this case, it is a lip-shaped channel steel. H-type steel or the like may also be used. Furthermore, the material is not limited to steel, but may also be wood or the like. Reference numeral 29.3 is a long type conveyor provided at the front and rear of the painting booth 4.

5 is a long profile 9 at the passing position from the entrance 6 of the mounting booth 4 to the lower exit lower profile. It consists of a cylindrical chamber with an inner diameter of G = small in order to spread the paint more effectively during spraying.

[A complete set of Chiya spray installed in the paint scattering room 5 yen; 1 nanozzle, as shown in Figure 2, is fixed to the frame 11 in the room, and each tip is attached to a long type IA. Aimed at major faces and corners. 12 is an automatic loading machine that sends off-cuts to Izuno B, TO, and 13 is a paint tank. The lower end of the paint recovery pipe 14 coming down from the outlet 14a at the bottom of the scattering chamber 5 is inserted into the J: part of the paint tank lβ.
. 15 is a nozzle for spraying thinner, which is installed at the rear of the room, slightly tilted toward the entrance side,
Thinner mist is scattered to each part of the circle. ! 6 is a machine for spraying thinner. x, 7 is an axial fan installed on the ceiling of the painting booth 4, and an inlet 8 of the scattering room 5.
, the paint mist f thinner mist escaping from the outlet 9 is sent to a gasket (not shown) and immediately goes outdoors. This exhaust goes from below booth 4, underground, f! It may be performed in seven ways.

The limit switch LSI detects the arrival of the tip of the long type MA at the Yahoo population 6 as shown in FIG. 8, operate the automatic coating machine 12, and
As shown in Figure (C), paint is sprayed while the long type filtA is passing through the nozzle position.

Limit switch LSD! 11-bee? For the long type, the rear end passes through the booth exit lower, the paint spraying is finished, and the timer is sent from the thin 5 to each part of the scattering room 5 as shown in Fig. 3(d). This sprays thinner for a certain period of time. This spray of thinner flushes out the remaining paint to the bottom of the room.

Furthermore, the paint hardened by oxidation is also melted and deposited at the bottom of the chamber, where it is collected through the collection pipe 14 into the paint NI3. Note that when the limit switch LS2 is turned off, a timer operates and thinner is sprayed. Even if the tip of the long type 11A reaches the limit switch LSI while the timer is operating, the switch will not operate and the conveyor 2 will stop. Type IA waits at the entrance 6n, and after the thinner spraying is finished,
In the moving type, the conveyor 2 passes through the scattering chamber 8 and paint is sprayed. However, the paint spraying and thinner spraying may be performed manually. Further, for paint spraying, the nozzle 10 is not limited to an air spray set, but may be a high-pressure airless spray set.

FIG. 4 shows the arrangement of nozzles for spraying paint in Example 2. In this case, the paint sprayed from the upper nozzle IL)a and the side nozzle 10b hits the inner wall of the scattering chamber 5, scatters, and becomes paint mist, and this paint mist coats the outer surface of the long type HA. , the lower two nozzles IO (once hit obstructing bar !8 diagonally and are scattered, giving paint mist to the inner surface of the lip of mold 111A.

G. Effects of the Invention In the present invention, the paint sprayed from the nozzle bounces off the scattering interior walls or indoor objects, scatters, and becomes a mist that covers the entire surface of the long mold, so that the paint film is uniformly formed. It is very economical because it can be used on any surface, and the paint in the scattering chamber is washed away by solvent spraying, and the residual paint can be recovered together with the solvent.

Furthermore, when a coating booth is provided, the paint mist and solvent particles are retained in the scattering chamber and only a small amount of them escape outside the scattering chamber, so that the exhaust system is less likely to become contaminated and the volume of the coating booth can be reduced.

[Brief explanation of drawings]

Fig. 1 is a @ side view of Embodiment 1 of the present invention, Fig. 2 is a front sectional view of the main parts of the same, Fig. 3 (aXbXc) (d) is an explanatory diagram showing the order of operation of the above, Fig. 2 is a front sectional view of a main part of Example 2. FIG.

Claims (1)

[Claims] A paint scattering chamber is provided surrounding the long shaped material that is sent to the painting position, and a paint spraying nozzle is positioned and provided so that the sprayed paint hits the walls of the scattering chamber or the interior of the same room and bounces back, generating paint mist inside the chamber. A long-shaped material coating apparatus characterized in that a solvent spray nozzle is provided so that the solvent can be applied to the interior walls and interior objects of the scattering chamber.