JPH0346555B2 - - Google Patents

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 properly cleaning dust inside the furnace in order to prevent deterioration in the quality of baking due to dust. The present invention relates to a drying oven equipped with an apparatus.

Prior Art and its Problems Inside the drying oven, there is dust brought in by the coated objects and the supports that support the coated objects such as hangers and trolleys, dirt drawn in from the atmosphere during holidays, fine pieces of dried paint, etc. polluted by garbage.

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

Previously, 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 the inside of the drying oven because hangers and trolleys get in the way. This caused problems such as poor work efficiency.

Means for Solving the Problems According to the present invention, the above-mentioned problems can be solved by a pipe having a plurality of holes arranged in a frame, and an opening/closing means arranged between the pipe and a cleaning liquid supply source. The frame has a top surface, a side surface and a bottom surface defining a space in which the object to be coated is placed, and the bottom surface of the frame is inclined so that it gradually descends from an inner portion to an outer portion thereof. The problem can be solved by providing a drying oven equipped with a dust cleaning device characterized in that the cleaning liquid that has fallen onto the bottom surface of the frame is guided to the outside by gravity.

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

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

The frame 12 conventionally includes a centrally located upper main portion 20 and sloped sides 22, 24 on either side thereof. The bottom of the main part 20 has a shape in which the central part thereof is slightly raised, so that the cleaning liquid sprayed from the dirt cleaning device 18 can appropriately flow to both sides 22 and 24, as described below. It's summery.

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 flows into the pipe 2.
It is sprayed from hole 6. A nozzle can also be attached to this hole to increase the cleaning effect of the cleaning liquid from the 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 mechanism, and can be operated manually or connected to a control means (not shown) for controlling the operating cycle of the drying oven. It is opened and closed according to the following.

Effects According to the device 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 drawings]

FIG. 1 is a simplified side view of a drying oven equipped with a dust 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; DESCRIPTION OF SYMBOLS 10...Drying chamber, 12...Frame body, 18...Dust cleaning device, 26...Pipe, 28...Opening/closing means.

Claims (1)

[Scope of Claims] 1. A pipe provided with a plurality of holes arranged in a frame, and an opening/closing means arranged between the pipe and a cleaning liquid supply source, The frame has a top surface, a side surface and a bottom surface defining a space in which an object is placed, and the bottom surface of the frame body is inclined so as to gradually descend from the inner part to the outer part thereof, and A drying furnace equipped with a dust cleaning device characterized in that the cleaning liquid is guided outside by gravity.