JPH11165102A - Panel coating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel coating device designed for enhancing the coating efficiency. SOLUTION: This panel coating device 1 is operated to spray-coat the surface of a panel 3 to be conveyed by a conveyor 2 with the help of a coating gun 5 which is moved back and forth in the width direction of the panel 3. At a position, on the conveyor 2, right before a coating operation by the coating gun 5, a detection reader 4 for the width W of the panel 3 is installed and the spray coating is performed in compliance with the width W of the panel 3 which is read by the reader 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel coating apparatus for coating a surface of a panel conveyed by a conveyor.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 3, a panel c conveyed by a conveyor b is provided on the surface of the panel c.
There is known a coating apparatus a which performs spray coating by a coating gun d which reciprocates in the width direction of the above. This coating device a is larger than the width e of the conveyor b,
The reciprocating width f of the coating gun d was set. By spraying the paint over the entire reciprocating width f, no residual paint remains on the surface of the panel c regardless of the size of the panel c being conveyed.

[0003]

However, in the case of the above-mentioned conventional coating apparatus a, the paint is sprayed over the entire reciprocating width f of the coating gun d, so that the narrow and long panel c or the narrow panel c,
In the case of painting panels c of small size, there is an inconvenience that the amount of paint that falls without being sprayed on the surface of these panels c increases.

[0004] The present invention has been made in view of the above circumstances, and has as its object to provide a panel coating apparatus capable of improving coating efficiency.

[0005]

According to the present invention, there is provided a panel coating apparatus which spray-coats a surface of a panel conveyed by a conveyor with a coating gun which reciprocates in the width direction of the panel. In the coating apparatus, a reader having a panel width is provided at a position of a conveyor before coating by a coating gun, and spray coating is performed in accordance with the panel width read by the reader. It is a thing.

[0006]

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

FIG. 1 schematically shows the overall structure of the panel coating apparatus 1, and FIG.

That is, in the panel coating apparatus 1, the width W of the panel 3 conveyed by the conveyor 2 is read by the reader 4, and the surface of the panel 3 is sprayed by the coating gun 5 in accordance with the width W of the panel 3. It is made to be painted.

The conveyor 2 has a configuration in which a plurality of chains 22 are suspended between rollers 21. Then, the panel 3 is carried on the chain 22.

The panel 3 is placed and transported on the conveyor 2 with the painted surface facing up.

The reader 4 has a plurality of phototubes 41 arranged in a horizontal row. The reader 4 is arranged such that a plurality of photoelectric tubes 41 are arranged in the width direction of the conveyor 2. Further, the reader 4 irradiates the light of each photoelectric tube 41 downward from a position above the conveyor 2. At this time, the light of the photoelectric tube 41 is transmitted to the conveyor 2.
Is passed between the chains 22 that constitute the. When the panel 3 is conveyed on the conveyor 2, the light of some photoelectric tubes 41 is blocked by the panel 3, and thus the panel 3 conveyed on the conveyor 2 by the blocked phototube 41. Is detected.

The coating gun 5 is provided at a position behind the transport of the reader 4 arranged on the conveyor 2. This painting gun 5
Is reciprocated along a rail 51 provided in the width direction on the conveyor 2. In addition, the painting gun 5
Four are provided along the conveying direction of the conveyer 2 so that the paint can be sprayed on the panel 3 passing below the painting gun 5 without leaving any paint. The supply of the paint to the coating gun 5 and the supply of the paint to the coating gun 5 are set so that the width W of the panel 3 read by the reader 4 in the moving range L of the reciprocating coating gun 5 becomes the coating effective width B of the spray coating. Timing of supply stop is achieved. The coating gun 5 is covered with a scattering prevention wall 52 so as to prevent the paint from scattering around. The chain 22 on the inner side of the scattering prevention wall 52 and above the conveyor 2
Below, a paint receiver 53 that receives excess paint applied from the coating gun 5 is provided.

In the panel coating apparatus 1 constructed as described above, the width W of the panel 3 conveyed on the conveyor 2 is detected by the reader 4, and the width W of the panel 3 and the effective width of the spray coating. Since the paint is supplied and stopped so that B coincides with the paint and the painting is performed by the paint gun 5, the paint that is not sprayed on the surface of the panel 3 and falls is prevented from being wasted, thereby improving the painting efficiency. Can be achieved.

In this embodiment, the effective range B of the spray coating and the width W of the panel 3 are determined by keeping the moving range L of the coating gun 5 constant and timing of the supply and stop of the supply of the coating. Although it is made to match, the effective width B of the spray coating and the width W of the panel 3 may be matched by adjusting the moving range L of the coating gun 5. However, in any case, the timing of the supply and the stop of the supply of the paint must be determined every time the panel 3 passes. If the width W of the panel 3 is controlled to be the same, the control is simpler because only the timing of supplying and stopping the supply of the paint is required.

[0015]

As described above, according to the present invention, a panel width reader is provided at the position of the conveyor just before painting by the painting gun, and spray coating is performed according to the panel width read by this reader. As a result, waste of the paint falling without being sprayed on the panel surface can be eliminated, and the coating efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing an overall configuration of a panel coating apparatus according to the present invention.

FIGS. 2A and 2B are plan views showing a panel coating process performed by a panel coating apparatus.

FIG. 3 is a plan view showing a conventional panel coating apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel coating apparatus 2 Conveyor 3 Panel 4 Reader 5 Painting gun W width (panel width)

Claims (1)

[Claims] 1. A coating apparatus for spray-coating a surface of a panel conveyed by a conveyor with a coating gun reciprocating in the width direction of the panel, wherein the position of the conveyor is short of the painting by the coating gun. And a panel width reader is provided, and spray coating is performed in accordance with the panel width read by the reader.