JPH06277577A - Coating device formed by using continuous sealing plate for conveyor section - Google Patents

Abstract

PURPOSE:To provide a device for simultaneously solving the prevention of fall of dust, etc., from the hanger rod parts of a conveyor and the sealability of enclosing walls with the coating device of a pretreating booth, coating booth or oven. CONSTITUTION:Sealing plates 13 formed to nearly a rectangular shape are fixed to the perpendicular parts existing in the middle of the hanger rods 11A or are supported thereto with some degrees of freedom rendered in the longitudinal direction in the centroid parts thereof. The sealing plates 13 are so mounted that the plates overlap successively on each other at the front and rear ends thereof, thus forming a nearly continuous plane. The upper part of the treating space is provided with a sealing plate housing chamber 6 formed to enclose the sealing plates 13 from both right and left sides. A labyrinth for improving the sealability is formed of the upper, lower, right and left plates constituting the slit of this sealing plate housing chamber 6 and the right and left sides of the sealing plates 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating apparatus using an overhead conveyor, and more particularly to a coating apparatus such as a pretreatment booth, a coating booth or an oven using a continuous seal plate in the conveyor section.

[0002]

2. Description of the Related Art A conveyor section such as a pretreatment booth, a coating booth or an oven used in a conventional coating apparatus is constructed as shown in FIG. In FIG. 5, (A) is a vertical sectional front view of a pretreatment booth using a linear hanger,
(B) is a vertical sectional front view of a pretreatment booth using a C-type hanger, (C) is a vertical sectional front view of a pretreatment booth using a brush seal and a circular dustproof plate, and (D) is a C-shaped hanger and brush seal. The vertical front view of the used pretreatment booth, (E) the vertical front view of the coating booth using the linear hanger, (F) the vertical front view of the oven using the linear hanger, (G) the linear hanger. It is a vertical cross-sectional front view of the oven using.
In addition to the above, in the pretreatment booth or in the conveyor section of the oven, there are other types such as lift type (encloses the conveyor section and blows air into it), air curtain type (installs an air curtain in the hanger penetration part), etc. There is.

[0003]

However, the conveyor of the above-mentioned conventional coating apparatus has the following problems. 5 (A), (E), and (F) show that the conveyor is entirely incorporated in the coating apparatus, and the conveyor is exposed to a corrosive atmosphere, paint mist, or hot air, which may cause corrosion or lubrication. On the other hand, the object to be treated suffers from the drop of oil, dust, or droplets adhering to the conveyor due to the metal machine part existing inside the coating device and passing through the inside, and the coating quality deteriorates. I will come. 5 (B), (C), (D), and (G), various attempts have been made to isolate the conveyor from the outside of the coating apparatus, or various approaches have been made to bring it close to the coating apparatus.
A circular dustproof plate installed directly in the middle of the hanger rod to remove dust, a dustproof plate fixed to the enclosure wall in combination with a C-shaped hanger to remove droplets, dust, etc., a brush seal or air seal provided on the penetrating wall of the hanger rod. Or, there are various types such as a combination of these, but it cannot be said to be sufficient yet.

[0004]

It is preferable for both the object to be processed and the conveyor device to separate the mechanical part such as the conveyor device from the inside of the enclosure which is the processing space of the coating device. According to the invention, an overhead conveyor is used to convey an object to be processed, and the object to be processed is hung on each of a large number of trolleys on the conveyor via a hanger rod. In a pretreatment booth, a coating booth or a coating apparatus of an oven, in which a slit through which the hanger rod passes is provided in the center line portion of the ceiling of the wall that surrounds the space in a tunnel, in the vertical portion in the middle of each hanger rod. A substantially rectangular seal plate is fixed or supported at the center of gravity with some freedom in the front-back direction. The seal plates are attached to each other at their front and rear ends so as to be sequentially overlapped with each other to form a substantially continuous surface, and the seal plate storage chamber is formed in the upper part of the processing space so as to surround the continuous seal plates from both left and right sides. Is provided, and a labyrinth is formed by the upper, lower, left, and right plates that form the slit portion of the seal plate storage chamber and the left and right sides of the seal plate to prevent dust and the like from passing through the slit and to improve sealing performance. The present invention aims to provide a coating device using a continuous seal plate on the conveyor section.

[0005]

The continuous seal plate is a combination of the hanger rod of the overhead conveyor and the individual seal plates, and it can be said that a so-called plate conveyor is attached. Originally, as a method for preventing dust, oil, iron powder, etc. falling from an overhead conveyor, it was common sense to use a C-shaped hanger rod or a dustproof plate fixed to the surrounding wall, but the present invention reverses this common sense. It is the same as the conveyor because of the idea. The conveyor according to the present invention does not cause any problem because it moves up and down and bends in the same reason as a conveyor for carrying luggage at an airport. This plate can greatly reduce defects when a defect occurs due to dust, foreign matter, etc. falling from the top in a painting factory or when the oil supply to the conveyor after maintenance is excessive. Also, when the hanger rod is C type,
A large distance between the rail and the dustproof plate is required, but the conveyor according to the invention need not be so large. Cleaning can be easily done by fixing the brush at one place and attaching a device for sweeping on the seal plate, or by attaching an air blow, and it is not necessary to clean the entire circumference of the conveyor unlike a fixed dustproof plate.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a coating apparatus using a continuous seal plate in a conveyor section according to the present invention will be described below with reference to FIGS.
Will be described with reference to. 1 and 2 show the first embodiment, and FIG. 1 (A) is a vertical sectional front view of a pretreatment booth.
1B is a vertical side view of FIG. 1A, FIG. 2A is a perspective view of one sealing plate, and FIG. 2B is a plan view of a number of continuous sealing plates. 3 shows the second embodiment and is a vertical sectional front view of the coating booth. FIG. 4 shows the third embodiment and is a vertical sectional front view of the oven. The first to third embodiments will be sequentially described below. First Embodiment In FIGS. 1 and 2, 1 is a pretreatment booth, 2 is a ceiling plate, 3 is a drain hole for dropping the drain into the processing space, 4 is a gutter for guiding the dropped drain to the vicinity of the side wall,
5 is a nozzle, 6 is a seal plate storage chamber, 11 is a conveyor, 1
1A is a hanger rod, 12 is a tow chain, 13 is a seal plate, and 20 is an object to be processed. The conveyor according to the first embodiment is an overhead conveyor 11 for transporting an object 20 to be processed.
The object 20 to be processed is hung on the trolley via the hanger rods 11A, and the slits through which the hanger rods 11A pass through the center line of the ceiling of the enclosure that surrounds each processing space in a tunnel shape. In the coating device of the pretreatment booth in which the above is provided, the substantially rectangular seal plate 13 is fixed to the vertical portion in the middle of the hanger rod 11A, or a certain degree of freedom is provided in the front-rear direction at the center of gravity thereof. Supported and seal plate 13
Are attached so as to overlap one another at their front and rear ends to form a substantially continuous surface, and a seal plate accommodating chamber 6 is provided in the middle of the hanger rod 11A so as to surround the continuous seal plate 13 from both sides. . A labyrinth for improving the sealing performance of the slit part is formed by the upper, lower, left and right plates constituting the slit part of the seal plate storage chamber 6 and the left and right sides of the seal plate. Thirteen
A is a bent portion for reinforcing the seal plate 13 and the like. Second Embodiment In FIG. 3, 11 is a conveyor, 31 is a coating booth, 3
Reference numeral 2 is a filter, and 33 is a seal plate storage chamber. The conveyor of the second embodiment is in the coating booth, but the conveyor itself is substantially the same as that of the first embodiment. Third Embodiment In FIG. 4, 11 is a conveyor, 41 is an oven, 42
Is a seal plate storage room. The conveyor of the third embodiment is in an oven, but the conveyor itself is substantially the same as that of the first embodiment.

[0007]

The coating apparatus using the continuous seal plate in the conveyor section according to the present invention is provided with the moving seal plate.
It has the following excellent effects. Since the main part of the conveyor is isolated outside the processing space and oil and dust, and further, adhered droplets and the like can be prevented from dropping, the coating quality of the processed product can be improved. For cleaning, a work such as cleaning the seal plate by providing a brush or an air blow at one place in the conveyor route can be easily carried out. The processing space is full of acidity, alkalinity, humidity, hot air, etc., and it limits the leakage of the internal atmosphere to the outside and improves the isolation, thus improving the working environment in the factory, conveyor etc. It is possible to prevent rusting of mechanical parts, improve maintainability, and contribute to energy saving depending on conditions. If it is preferable to put the conveyor outside in a high-temperature furnace in addition to the above dust-proof and drip-proof, it is possible to put the conveyor outside and prevent high heat from escaping to the outside with a continuous seal plate. Can be protected from

[Brief description of drawings]

FIG. 1 shows a first embodiment of a pretreatment booth of a coating apparatus according to the present invention, (A) is a vertical sectional front view, and (B) is a front view.
[Fig. 3] is a vertical sectional side view of (A).

2 shows a seal plate of the conveyor of FIG.
(A) is a perspective view of one sealing plate, and (B) is a plan view of a large number of continuous sealing plates.

FIG. 3 is a vertical sectional front view showing a second embodiment of the coating booth of the coating apparatus according to the present invention.

FIG. 4 is a third oven of the coating apparatus according to the present invention.
It is a vertical section front view showing an example.

FIG. 5 shows a conventional pretreatment booth, a coating booth, and a conveyor section of an oven. (A) is a vertical sectional front view of the pretreatment booth using a linear hanger, and (B) is a C-shaped hanger. A vertical front view of the pretreatment booth, (C) is a vertical front view of the pretreatment booth using a brush seal and a circular dustproof plate,
(D) is a vertical sectional front view of a pretreatment booth using a C-type hanger and a brush seal, (E) is a vertical sectional front view of a coating booth using a linear hanger, and (F) is an oven using a linear hanger. A vertical sectional front view, (G) is a vertical sectional front view of an oven using a linear hanger.

[Explanation of symbols]

 1 Pretreatment Booth 6 Seal Plate Storage Room 11 Conveyor 12 Traction Chain 13 Seal Plate 20 Processing Object 31 Coating Booth 32 Filter 33 Seal Plate Storage Room 41 Oven 42 Seal Plate Storage Room

Claims (1)

[Claims] 1. An overhead conveyor is used to convey an object to be processed, and the object to be processed is hung on each of a number of trolleys of the conveyor via a hanger rod. A pretreatment booth, a coating booth, or an oven. In a coating device of a pretreatment booth, a coating booth, or an oven, in which a slit through which the hanger rod passes is provided in the center line portion of the ceiling of the wall surrounding the treatment space in the form of a tunnel, in the middle of the respective hanger rods. A substantially rectangular seal plate is fixed to or supported by a part of its center of gravity with some degree of freedom in the front-rear direction, and the seal plates are attached so that they are successively overlapped at their front and rear ends to form a substantially continuous surface. The upper part of the processing space is a seal plate housing that surrounds the continuous seal plate from both left and right sides. A chamber is provided, and a labyrinth for improving the sealing performance is formed by the upper, lower, left and right plates that form the slit portion of the seal plate storage chamber and the left and right sides of the seal plate. A coating device that uses a continuous seal plate for the conveyor section.