JPS581993B2 - Automotive Rotsuka panel painting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of painting a rocker panel formed on the lower side surface of an automobile body.

The purpose of the present invention is to reduce the amount of paint used because of paint recovery and reuse, eliminate investment and operating costs for ventilation equipment, reduce painting man-hours and required time, and improve work efficiency.

Rocker panels in passenger cars are generally painted black (commonly known as blackout) for design purposes.

Conventionally, this type of painting involves applying a top coat to the entire car body, then baking it, inspecting it, applying masking such as tape or paper to the top of the rocker panel, painting the rocker panel black with a spray gun, and then drying it with an infrared lamp. Ta.

Therefore, the conventional painting method requires materials and work for a masking process, and further requires a local drying process after the black coating.

The present invention eliminates the need for this masking and drying process at all, and uses a special method to apply black coating immediately after topcoating, completing the process using a conventional baking process.

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

In FIG. 1, 1 is a rocker panel, and 2 is a black coating applied to the rocker panel 1.

FIG. 2 shows a specific example of the coating method according to the present invention.

That is, the coating of the rocker panel according to the present invention is divided into two areas: a side surface coating zone A and a bottom surface coating zone B of the rocker panel 1.

In the side painting zone A, one or more paint hoses 4 are arranged to face the side painting zone A, and the bottom painting zone B
An injector such as a spray gun 5 is installed with a low-pressure spray pattern within that range.

Both the paint hose 4 and the spray gun 5 are connected to the paint supply device 3.

Further, a falling paint receiver 7 is provided on the F side of the rocker panel 1 to be painted, and the paint is collected into the paint supply device 3 by a pump 6.

Therefore, in the present invention, the paint discharged from the paint hose 4 is applied to the side surface painting zone A of the rocker panel 1 portion of the automobile body immediately after top coating, which is transferred by a conveyor, by contacting and flowing down, and the bottom surface painting zone B is sprayed using a spray gun 5.

The falling paint is collected in a falling paint receiver 7 and collected by the pump 6 into the paint supply device 3.

After the black painting 2 of the rocker panel 1 is completed, the entire car body is baked in the usual manner, and then inspected.

According to the present invention, since the side coating zone A is brought into contact with the paint discharged from the coating bowl 4 in a falling manner, a clear boundary line with the upper part of the rocker panel 1 can be obtained without masking as in the conventional technique.

In addition, even if the top coat is not yet dry immediately after the top coat, the top coat and the black paint will not mix because the discharged paint is in contact with the top coat, and the black paint will remain on top of the top coat. is applied to.

Therefore, in the present invention, the masking material and its working process (the two steps of applying and peeling off the masking tape) are omitted, and the drying is performed simultaneously with the baking of the top coat.
The local drying step using a separate infrared lamp is also omitted.

Omitting these two steps has the advantage of significantly improving work efficiency and reducing masking material costs and transportation operating costs.

Furthermore, while conventional painting methods require dedicated ventilation equipment to prevent the spray from scattering into the surrounding area, the method of the present invention allows the use of conventional painting process ventilation equipment, reducing equipment costs and operating costs. Lower costs can also be achieved.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a painted area by the method of the present invention;
The figure is an explanatory diagram showing a specific example of the method of the present invention. 1... Rocker panel, 2... Black paint, 3... Paint supply device, 4...
Paint hose, 5...Spray gun, 6...
... Pump, 7... Fallen paint receiver, A pump...
・Side side painting zone, B...Bottom side painting zone.

Claims (1)

[Claims] 1. When applying a different color cosmetic coating such as black to a rocker panel after topcoating, a falling paint receiver connected to a paint supply device is installed below, and a paint hose is installed to connect the side painting zone of the rocker panel to the paint supply device. 1. A method for painting a rocker panel of an automobile, characterized in that coating is performed using a paint discharged from a paint supply device, and the lower surface coating zone of the rocker panel is sprayed using a sprayer connected to the paint supply device.