JPH11138065A - Work conveyance device for coating booth - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a work conveyance device, for a coating booth, which prevents conveying rollers from picking up a coating and thereby, prevents a plate-like work from becoming soiled by the coating and at the same time, significantly improves working efficiency at the time of changing a color and washing a can in the coating booth. SOLUTION: This work conveyance device for a coating booth is equipped with a cladding cover 15 with a slit protruding to an ejection nozzle side above the outer peripheral part of each of conveyance rollers 14, a cleaning tank 16 for storing water 17 in which the outer peripheral part of each of the conveyance rollers 14 is immersed and scrapers 18 which come into contact with the outer peripheral part of the conveyance rollers 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work transfer device for a paint booth, and more particularly, to a paint booth in which a plurality of transfer rollers for loading and unloading a work are arranged in a paint booth for spraying a paint on the work. The present invention relates to a work transfer device.

[0002]

2. Description of the Related Art In recent years, materials having a natural stone-like surface have been used as outer wall materials for buildings and fences. This outer wall material
For example, it is molded using various molding methods such as a pressing method, a papermaking method, and an extrusion molding method. Also, after forming the outer wall material, in order to make the surface of the outer wall material a predetermined color,
Painting is performed, and a painting system as shown in FIG. 3 is usually employed.

FIG. 3 is a schematic view of a coating system. In the drawing, reference numeral 1 denotes a spray nozzle of a coating booth 2 for spraying a paint on an outer wall material. The spray nozzle 1 is a paint nozzle stored in a storage can (not shown). Is sprayed onto the surface of the outer wall material W in the form of a shower. In addition, a plurality of transport rollers 3 are disposed below the injection nozzle 1, and the outer wall material W
The coating booth 2 is provided at predetermined intervals by the transport rollers 3.
When the coating is completed, the coating is carried out of the coating booth 2 and transported to the next step.

[0004]

However, in such a conventional coating system, the transport roller 3 having a large surface area is disposed below the injection nozzle 1 in a bare state, so that the injection nozzle 1 The applied paint adheres to the transport roller 3, and the paint adheres to the rear surface of the outer wall material W, and there is a problem that the outer wall material W becomes dirty.

[0005] Further, when the color of the paint in the coating booth 2 is changed or every time the storage can is washed, the work of removing the paint adhered to the transport roller 3 must be performed. There was a problem that would require. Therefore, the present invention can prevent the paint from adhering to the transport rollers, prevent the work from being stained by the paint, and greatly improve the workability at the time of changing the color of the painting booth and can washing. It is an object of the present invention to provide a work transfer device of a painting booth that can perform the work.

[0006]

According to the first aspect of the present invention,
In order to solve the above-mentioned problems, in a work transfer device of a coating booth in which a plurality of transfer rollers for loading and unloading a work to and from a coating booth for spraying paint on the work, the upper part of the outer periphery of the transfer roller is coated. An exterior cover having a slit protruding to the booth side, a cleaning tank provided below the exterior cover and storing a cleaning liquid into which an outer peripheral portion of the transport roller is immersed, and provided in the cleaning tank, And a contact member that contacts an outer peripheral portion of the roller.

[0007] In this case, the work is carried into the transport rollers at a predetermined interval and the coating is performed. However, the paint adhered to the transport rollers can be scraped off by the contact member, and the transport rollers can be washed with the cleaning liquid. Because you can
When the workpiece reaches the transport roller, the outer peripheral portion of the transport roller from which the paint has been removed can be brought into contact with the workpiece. As a result, the paint adhered to the transport rollers can be easily removed, thereby preventing the work from being stained by the paint, and at the same time as changing the color of the painting booth, since the work of cleaning the transport rollers becomes unnecessary. And the workability at the time of can washing can be greatly improved.

According to a second aspect of the present invention, in order to solve the above-mentioned problem, in the first aspect of the present invention, the outer cover is inclined with respect to a horizontal plane, and the lower end of the outer cover in the direction of inclination is provided. It is characterized by having an opening for collecting the paint. In that case, after the paint sprayed toward the outer cover is moved to the lower end in the inclined direction along the surface of the outer cover, it can be recovered through the opening, so that the excess paint can be reused. .

According to a third aspect of the present invention, in order to solve the above-mentioned problem, in the first or second aspect of the present invention, there is provided a drainage portion for draining a cleaning liquid from the inside of the cleaning tank on the lower surface of the cleaning tank. Features. In this case, the cleaning liquid can be easily extracted from the cleaning tank, the workability of the replacement of the cleaning liquid can be improved, and the cleaning tank can be easily cleaned.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are views showing an embodiment of a work transfer device for a painting booth according to the present invention. First,
The configuration will be described. 1 and 2, reference numeral 11 denotes a coating booth. The coating booth 11 has a nozzle 13 for spraying the water-based paint 10 stored in a storage can (not shown) onto the surface of a plate-like work 12 in a shower shape. The work 12 does not have to be plate-shaped.

The plate-like work 12 is made of a material having a natural stone-like surface as an outer wall material of a building or a fence. The plate-like work 12 flows, for example, on the surface of a filter cloth. A material layer having a predetermined thickness is formed by supplying a mixed material. Below the injection nozzle 13, a plurality of transport rollers (six rows in the present embodiment, only three rows on the right side in FIG. 1 are shown in FIG. 1) 14 are arranged along the transport direction of the plate-like work 12. The transport rollers 14 are connected by a rotating shaft 14 a in a direction orthogonal to the transport direction of the plate-like work 12.

The transport roller 14 is driven by a drive member (not shown) so that the plate-like work 12 formed in the preceding process is carried in and out of the painting booth 11. An outer cover 15 is attached to the transport roller 14, and a slit 15a is formed in the outer cover 15 so as to protrude above the outer peripheral portion toward the coating booth 11 side. A cleaning tank 16 is attached below the outer cover 15, and water 17 is stored as a cleaning liquid in the cleaning tank 16, and the outer periphery of the transport roller 14 is immersed in the water 17. The rotating shaft 14a is rotatably supported by support members 22a and 22b provided on both sides of the washing tank 16.

A scraper (contact member) 18 is provided in the cleaning tank 16, and the tip of the scraper 18 contacts the transport roller 14 to clean the surface of the transport roller 14. . Note that the contact member may be a brush, a brush, or the like instead of the scraper 18. Also, the outer cover 15
A projecting member 23 protrudes around the outer periphery of the plate-shaped work 12, and the exterior cover 15 is inclined downward with respect to a horizontal plane in the conveying direction upstream side of the right plate-like work 12 in FIG. It protrudes outward from row 16.

An opening 19a is formed at the lower end of the exterior cover 15 in the inclined direction, and a recovery pipe 19 is connected to the opening 19a.
The water-based paint 10 jetted upward is collected in a collection pipe 19. A liquid draining hole (liquid draining part) 20 is provided at the lower end of the cleaning tank 16, and a valve 24 is provided inside the liquid draining hole 20. When the valve 24 is opened, the drainage hole 20 is filled with water containing the water-based paint 10 from the cleaning tank 16.
17 is drained.

Next, the operation will be described. In this embodiment,
When the plate-shaped work 12 formed and cut on the upstream side in the conveying direction of the coating booth 11 is carried into the coating booth 11 by the conveying rollers 14 at predetermined intervals, the plate-shaped work
The water-based paint 10 is sprayed on the surface of the work 12 to paint the surface of the plate-like work 12.

The plate-like work 12 after the coating is completed is conveyed by the conveying rollers 14 to the next step carried out of the coating booth 11. On the other hand, the water-based paint 10 sprayed from the spray nozzle 13 collides with the outer surface of the outer cover 15 and the transport roller 14 in addition to the surface of the plate-shaped work 12. In the present embodiment, an outer cover 15 having a slit 15a that protrudes the outer peripheral portion of the transport roller 14 toward the injection nozzle 13 side, and water 17 that is provided below the outer cover 15 and is immersed in the outer peripheral portion of the transport roller 14 And a scraper 18 provided in the washing tank 16 and in contact with the outer peripheral portion of the transport roller 14,
Is provided, the water-based paint 10 attached to the transport roller 14 can be scraped off by the scraper 18, and the transport roller 14 can be washed with water 17.

Therefore, at the time when the plate-shaped work 12 reaches the transfer roller 14, the outer peripheral portion of the transfer roller 14 from which the water-based paint 10 has been removed can be brought into contact with the plate-shaped work 12. In addition, when the plate-shaped work 12 is being coated, the transport roller 14 rotates while being shielded from the injection nozzle 13 by the plate-shaped work 12, so that the water-based paint adhered to the transport roller 14 at this time. 10 is reliably removed from the transport rollers 14.

The water-based paint thus adhered to the transport roller 14
Since the plate 10 can be easily removed, it is possible to prevent the plate-shaped work 12 from being stained by the water-based paint 10. Workability at the time of can washing can be greatly improved. In addition, the exterior cover 15 is inclined with respect to the horizontal plane, and an opening 19a for collecting the aqueous paint 10 is provided at the lower end of the exterior cover 15 in the inclination direction, so that the aqueous paint 10 sprayed toward the exterior cover 15 is provided. The protruding members
After moving to the lower end in the inclined direction along the surface of the exterior cover 15 surrounded by 23, the collection pipe is passed through the opening 19a.
It can be collected in 19 and the excess paint can be reused.

In the present embodiment, when the water 17 contaminated with the water-based paint 10 is replaced, the valve 24 of the drain hole 20 is opened to drain the water 17 from the drain hole 20, and then the valve 17 is opened. The drainage hole 20 is closed by 24, and new water 17 can be added into the washing tank 16. Therefore, the workability of the replacement work of the water 17 can be improved, and the cleaning of the cleaning tank 16 can be easily performed.

In the present embodiment, the paint is a water-based paint. However, the present invention is not limited to this, and a solvent-based paint may be used. In addition, the cleaning liquid is composed of water 17, but is not limited thereto.
If the paint is a solvent-based paint, it may have properties corresponding thereto. The point is that any material can be used so long as the paint can be easily removed. In addition, although the outer wall material is used as the plate-shaped work, it goes without saying that any other work can be used as long as the work is to spray paint from the painting booth.

[0021]

According to the first aspect of the present invention, the paint adhered to the transport roller can be scraped off by the contact member, and the transport roller can be washed with the cleaning liquid. At this point, the outer peripheral portion of the transport roller from which the paint has been removed can be brought into contact with the plate-shaped work.

As a result, the paint adhered to the transport rollers can be easily removed, so that the plate-like work can be prevented from being stained by the paint, and the cleaning work for the transport rollers becomes unnecessary. Workability when changing the color of the booth or washing the can can be greatly improved. According to the second aspect of the present invention, after the paint sprayed toward the exterior cover is moved to the lower end in the inclined direction along the surface of the exterior cover, it can be collected through the opening, so that excess paint can be collected. Can be reused.

According to the third aspect of the present invention, the cleaning liquid can be easily extracted from the cleaning tank, the workability of the replacement of the cleaning liquid can be improved, and the cleaning of the cleaning tank can be easily performed. Can be.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of a work transfer device for a painting booth according to the present invention, and is a schematic configuration diagram of the painting booth and the work transfer device.

FIG. 2 is a perspective view of a main part of the work transfer device according to the embodiment;

FIG. 3 is a schematic configuration diagram of a conventional coating system.

[Explanation of symbols]

 10 Water-based paint (paint) 11 Painting booth 12 Plate work (work) 14 Conveyor roller 15 Exterior cover 15a Slit 16 Cleaning device 17 Water (cleaning liquid) 18 Scraper (contact member) 19a Opening 20 Liquid drain hole (liquid drain)

Claims (3)

[Claims] 1. A work transfer device for a paint booth in which a plurality of transfer rollers for loading and unloading a work to and from a paint booth for spraying paint onto the work is provided. An exterior cover having a slit to protrude; a cleaning tank provided below the exterior cover and storing a cleaning liquid into which an outer peripheral portion of the transport roller is immersed; an outer periphery of the transport roller provided in the cleaning tank. And a contact member for contacting the part. 2. The exterior cover is inclined with respect to a horizontal plane, and an opening for collecting the paint is provided at a lower end in the inclination direction of the exterior cover.
Work transfer device for the painting booth described. 3. The work transfer device for a coating booth according to claim 1, further comprising a liquid draining portion on a lower surface of said cleaning tank for draining a cleaning liquid from inside the cleaning tank.