JPS6333597A - Drying furnace provided with device for cleaning dust - Google Patents

Abstract

PURPOSE:To completely remove the dust in the title drying furnace and to improve the quality of an electrodeposited film by providing a shower device for a cleaning soln. in the furnace for drying the coated film of an electrodeposited article, and automatically discharging washing water. CONSTITUTION:A product coated with a cationic electrodeposition paint is fixed to a hanger and traveled in the drying furnace 10 by a rail 16, and the electrodeposited film is dried. In this case, when dust is present in the drying furnace 10, the dust is deposited on the coated film and dried as such, and the quality of the electrodeposited film is deteriorated. Accordingly, both end parts 22 and 24 of the drying chamber 10 are inclined, and the essential part 20 at the center is raised, and a device 18 for cleaning off dust consisting of a pipe 26 having many injection holes and provided in the furnace is arranged. When the dust in the drying furnace 10 is swept out, an opening and closing means 28 of a cleaning soln. supply pipe is opened to spray the cleaning soln., the dust in the drying furnace is cleaned, and the dust is naturally dropped and discharged from both inclined parts 22 and 24.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a drying furnace for performing cationic electrodeposition coating, etc., and a method for appropriately cleaning dust inside the furnace in order to prevent deterioration of the quality of baking due to dust. The present invention relates to a drying oven equipped with an apparatus.

PRIOR ART AND THEIR PROBLEMS Inside the drying oven, there are dust brought in by the objects to be coated and supports for supporting the objects such as hangers and trolleys, garbage that gets caught in the atmosphere during holidays, and fine particles of dried paint. Contaminated by debris.

These (8&fine particles) are blown up by hot air circulation and adhere to the paint film that has not yet dried, causing paint film defects.

Conventionally, in order to remove these foreign substances, people entered the furnace when the line was stopped and cleaned the inside of the furnace with a vacuum cleaner, rags, wet rags, etc.

When cleaning the inside of the drying oven as described above, it is often difficult for people to clean it because hangers and trolleys get in the way. Unable to go inside.

For this reason, there were problems such as poor work efficiency.

Means for Solving the Problems According to the present invention, the above-mentioned problems can be solved by using a garbage disposal system which is equipped with a plurality of sprays and hasps arranged in the furnace and an opening/closing means arranged between the cleaning liquid supply source. The problem is solved by providing a drying oven equipped with a cleaning device.

Embodiment Next, a drying oven equipped with a dust cleaning device according to a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 3.

The drying oven 10 is a conventional chevron-shaped oven, and includes a frame 12, heating circulation devices 11ff and 14 (FIG. 3), a hanger rail 16, and a dust cleaning device 18.

The frame 12 conventionally includes a centrally located upper body 20 and sloped sides 22, 24 on either side thereof. The bottom of the main part 20 has a slightly raised central part, which allows the cleaning liquid sprayed from the dirt cleaning device 18 to properly flow to the sides 22, 24, as described below. There is.

The heating circulation device 14 functions to suck the air inside the frame 12, heat it, and return it to the inside of the frame 12, as in the conventional manner.

The hanger rail 16 supports hangers that support objects to be coated, as is conventional.

The dust cleaning device 18 is arranged within the frame 12 at appropriate intervals, and is arranged between a plurality of interconnected pipes 26 and these pipes 26 and a cleaning liquid supply source (not shown). The opening/closing means 28 is provided with an opening/closing means 28.

Each of the pipes 26 is provided with a plurality of holes, and when the opening/closing means 28 is opened and the pipe 26 is communicated with a cleaning liquid supply source, the cleaning liquid is sprayed from the holes of the pipe 26. In order to increase the cleaning effect of the cleaning liquid from the hole, a nozzle can be installed in this hole.

The cleaning liquid supply source supplies, for example, water, or water suitably containing a cleaning substance, etc., under pressure to the pipe 28 via the opening/closing means 28.

The opening/closing means 28 can be constituted by a conventional opening/closing cock, and can be opened and closed according to the operating cycle of the drying oven, either manually or connected to a control means (not shown) for controlling the operating cycle of the drying oven. Ru.

Effects According to the apparatus according to the present invention, fine foreign matter can be completely removed from inside the furnace.

Further, in the apparatus according to the present invention, the cleaning work can be performed by operating the opening/closing means outside the furnace, and the work efficiency can be improved.

Furthermore, the device according to the invention allows cleaning operations to be carried out even if the furnace has not completely cooled down, allowing efficient use of time.

[Brief explanation of the drawing]

FIG. 1 is a simplified side view of a drying oven equipped with a dirt cleaning device according to a preferred embodiment of the present invention. 2 is a plan view of the apparatus of FIG. 1; FIG. FIG. 3 is a central sectional view of the device of FIG. 1; 10... Drying chamber 12... Frame 18... Dust cleaning device 26... Pipe 28... Opening/closing means

Claims (1)

[Claims] 1. A pipe provided with a plurality of holes arranged in a frame;
A drying oven equipped with a dust cleaning device, comprising an opening/closing means disposed between the pipe and a cleaning liquid supply source. 2. A drying oven equipped with a dust cleaning device according to claim 1, wherein the bottom surface of the frame is inclined so as to guide the cleaning liquid to the outside.