JPS5946169A - Sealing means for treating chamber - Google Patents

Abstract

PURPOSE:To enable to hermetically seal a treating chamber, while letting a workpiece to be coated continuously run through it, by using a couple of sealing members constituted by radially attaching large and small buffle plates to the periphery and the end parts, respectively, of a tubular main body. CONSTITUTION:The sealing member is constituted by attaching radially protuberant large buffle plates 7 to the periphery of a tubular main body 6 over its entire length and small buffle plates 8 to both of the upper and lower end parts of the periphery between the adjacent large buffle plates 7. The sealing members of this kind are rotatably attached to the introducing and withdrawing openings, respectively, of a treating chamber. When the large buffle plates 7 are brought face to face with each other, the introducing and withdrawing openings are practically completely hermetically sealed. When they are not faced to each other, a workpiece to be coated can pass through the introducing and withdrawing ports.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a treatment chamber which is a tank for sealing the inlet and outlet of a treatment chamber in which objects to be coated are continuously fed into a guide and subjected to treatments such as pretreatment, drying, painting, and baking. The present invention relates to a sealing device.

In general, painting involves pre-treatment processes such as hot water washing, degreasing, film formation, hot water washing and water washing, drying process using hot air, ramming, etc., spraying, dipping, and If? It requires four steps: a painting process using electricity, powder, etc., and a baking process using hot air, special radiation, etc.
In any process, h! due to volatilization of molten metal 1j, etc. il
In order to prevent polluting the atmosphere around the area or causing a lack of energy and noise due to an appropriate number of 7rj5, it is desirable to carry out each process in a sealed room. When carrying out the above-mentioned four-step process while transferring the product to the factory, it is not possible to perform each process in the room.

Conventionally, in order to perform the above-mentioned pretreatment, drying, coloring, and baking (-1) steps continuously, each step was performed in a tunnel-shaped processing chamber (1) as shown in FIG. Seal zones (3) equipped with seals (2) to the extent that they do not obstruct the transfer of the coating and snout as shown in Figure 1 are provided at the front and rear ends of the Although a method of providing a fitted air curtain zone (5) has been practiced, it is still possible to contaminate the air in the F and D zones due to solvent volatilization, waste energy due to the escape of heated air, or cause the air to flow through other processes. It has not been possible to completely prevent defects such as adhesion of chemicals to the object to be painted.

The present invention eliminates the above-mentioned defects and provides a sealing device that can completely seal the inlet and outlet of the processing chamber when objects to be coated are continuously passed through the processing chamber. The drawings will be explained.

Embodiment Four large shielding plates (7) were installed so as to protrude in the radial direction over the entire length of the circumferential surface of the νth (cylindrical main body O) shown in FIG. A suitable number of small shielding plates (8) are attached to both ends so as to protrude in the radial direction of the cylindrical body (6) between each large shielding plate (7) to obtain a sealing material. As shown in Figures 4 and 5, the pretreatment chamber (
This is a processing chamber sealing device rotatably attached to the inlet and outlet of (1). When the pair of large shielding plates (7), (7) of the sealing material face each other, the inlet and outlet of the pumping treatment chamber are almost sealed, and the large shielding plates (7), ('
When the object to be coated (1o) conveyed by the conveyor device (9) when the objects (7) and
) so that it can pass between them without any trouble.

Figure 6 shows the external appearance of the inlet or outlet of the pretreatment chamber C1,). A carved part (11) that can cover the sealing material is provided at the end of the pretreatment chamber, and a conveyor device (9) is provided on the end surface. ) and the object to be coated (10) (none of which are shown). In order to insert and remove the object to be coated (10) without any trouble, it is preferable to rotate the conveyor +M station (9) and the sealing material in conjunction with each other.

The above is an example in which the present invention is applied to a pre-processing chamber as an actual Mj example, but it goes without saying that the present invention can be implemented in the same manner in processes other than the pre-processing chamber, such as painting, drying, and baking. Large shielding plate, small i' depending on the situation of the object to be coated.
Adjust the size and number of M shielding plates as appropriate, attach a small shielding plate to only one end of the cylindrical body, or make the processing chamber vertical and the axis of the cylindrical body of the sealant horizontal. This is to implement the history. It goes without saying that the large and small heel plates do not need to be interposed strictly in the radial direction of the cylindrical body as long as they have a decorative effect.

The present invention achieves ↑1 as described above, so that during the pre-treatment process and painting process, the treatment chemicals or paint mist is blown away into the factory, and the paint solvent and chemical return air is scattered inside the factory. Or, to prevent them from entering other process rooms and touching the equipment, causing disasters or production problems. is large 1
I give 1 to iH and have no energy! ! A significant effect can be achieved by preventing the increase of fF, IA) and defeating the conventional sealing device.

[Brief explanation of the drawing]

1 and 2 are rFR cross-sectional explanatory diagrams showing a conventional sealing method in a processing chamber, FIGS. 3 to 6 show an example of a conventional sealing method, and FIG. 3 shows a sealing material; 41. 151 Figures 1 and 84 are explanatory diagrams of the main parts of the processing chamber with sealing material applied (R straight side), Figure 5 is a simplified horizontal view of the main parts of 41゛4, and Figure 6 is the conveyor equipment + This is a 2x1 diagram of the inlet and outlet of the processing chamber except for !j:. In the figure, (1) is the processing chamber, (6) is the circle 1: '+)' shaped body,
('7), (F3) are semi-shielding plates, (9) are conveyor devices,
(1o) I′i shows the object to be coated. Agent Horo Ide

Claims (1)

[Claims] 1. Continuously transporting the four articles into the room for pretreatment, drying,
In order to seal the inlet and intake IH ports of the processing chamber where treatments such as painting and baking are performed, there is a large shielding plate that protrudes radially along the entire length of the curved surface of the cylindrical body, and a shield plate that extends radially at the end of the circumferential surface. A pair of sealing materials attached with small protruding shielding plates are rotatably installed at the inlet and outlet of the processing chamber, and when the large shielding plates of the pair of sealing materials face each other, the inlet and outlet are A sealing device for a processing chamber, which is constructed so that when the outlet is almost completely closed and the large shielding plate is not opposed, the piston device can pass iR1 through the inlet and outlet. 2. A conveyor is configured to continuously feed and take out the painted material, and a pair of sealing materials kK1. A sealing device for a processing chamber according to claim 1, which is configured to move and rotate with a conveyor.