JPH0829277B2 - Paint booth with air supply - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an air-supplying painting boom, and more particularly, to a rectifying partition plate that is movable.

[Prior Art] Fig. 5 shows a general structure of a paint booth with air supply. Reference numeral 1 denotes an air supply chamber, which is a dynamic pressure chamber 2 and a static pressure chamber 3 to which conditioned air is fed.
Are vertically connected to each other via a flow control partition plate 10. Four
Is a coating chamber for coating the work W, and is disposed below the air supply chamber 1 via a filter 30. Further, below the coating chamber 4, an exhaust processing chamber 5 is arranged for sucking and discharging the air in the coating chamber 4 together with the coating mist and the like.

In such a coating booth, for example, the dynamic pressure chamber 2 is 1.5-2 m,
Static pressure chamber 3 is 2m, coating chamber 4 is 4-5m, exhaust treatment chamber 5 is 2-3m.
Therefore, the total height of the four-story building is about 11 to 15m. Therefore, it is advantageous to lower the total amount from the viewpoint of building construction costs and operational circumstances. In addition, when there are building restrictions or when using an existing building, some of them must be underground, which is even more disadvantageous.

Here, the heights of the coating chamber 4 and the exhaust treatment chamber 5 are limited by the storage equipment. The dynamic pressure chamber 2 of the air supply chamber 1 cannot be made lower than necessary to maintain the rectification effect. On the other hand, the height of the static pressure chamber 3 is conventionally determined by a compromise with the ergonomic viewpoint for the replacement work of the filter 30. It is for pulling up the filter retainer 31 and laying the filter 30 as appropriate.
It is not essential for rectification or air flow.

Therefore, it has been proposed to consider the dynamic pressure chamber 2 and the static pressure chamber 3 comprehensively to lower the entire air supply chamber 1. For example, in the structure disclosed in Japanese Utility Model Laid-Open No. 61-33664, a straightening partition plate (6) and a filter (9) are arranged close to each other, and the straightening partition plate (6) has a plurality of flip-up partition plate structures (6a , 6b, 6c),
When each partition plate (6a, etc.) is jumped up to the dynamic pressure chamber (7), the space is utilized to open the filter retainer (10).

Therefore, the static pressure chamber (8) can be significantly lowered.

[Problems to be Solved by the Invention] However, the above conventional structure has the following problems.

The width W of a general coating booth is about 6 m, and the length L is about 80 m.
For this reason, the openable filter holder 31 and the like are opened and closed in the width W direction as shown in FIG. On the other hand, the filter 30 can be replaced more easily by using a relatively small number of filters than a large number of short filters. Therefore, as shown in FIG. 6, for example, a filter having a length of 20 m corresponding to one section L1 divided into four in the booth longitudinal direction is laid in the booth longitudinal direction.

However, in this case, in addition to the reinforcing horizontal beam member 7, it is necessary to dispose a plurality of vertical beam members 8 for supporting the filter 30. Then, the portion of the vertical beam member 8 including the intersection portion 9 of the two beam members 7 and 8 becomes a blind state, and air turbulence occurs at the downstream side thereof, causing a so-called soaring phenomenon, which should be escaped to the exhaust treatment chamber 5. The paint mist is stagnant and the coating quality of the next work is adversely affected. Further, there is a drawback that the effective air cleaning area is narrowed down, the fan of the air conditioning equipment is enlarged, and the life of the filter 30 is shortened. Further, as shown in FIG. 7, the height is reduced because the palletizer and the wire nets 31, 32 are provided on the horizontal beam member 7 and between the vertical beam members 8, 8 and the filter 30 is laid on the palletizer. For that purpose, the height of the vertical beam member 8 is dimensionally disadvantageous.

From the viewpoint of ensuring coating quality and smooth operation, it is generally necessary to replace the filter 30 at least once every 1 to 3 months, and the partition plate (6a etc.) and the filter retainer 31 are opened and closed each time. It has to be complicated and the work efficiency is poor.

Moreover, in the case of the concrete replacement work, the worker has to carry the bulky and heavy filter 30 to the laying place, which causes heavy labor and is dangerous.

In addition, since the laying work is performed in a mid-waist posture within the dynamic pressure chamber 2 of 1.5 to 2 m, it requires a long time and is very fatigued.

An object of the present invention is to eliminate all of the above-mentioned conventional drawbacks, to reduce the total height, to perform a filter replacement work quickly, easily and safely, and to provide a supply booth with air supply capable of ensuring smooth operation and coating quality for a long period of time. To do.

[Means for Solving the Problems] The present invention provides an air supply chamber in which a dynamic pressure chamber and a static pressure chamber to which conditioned air is supplied are vertically connected through a rectifying partition plate,
In a supply booth with an air supply consisting of a coating chamber disposed below the air supply chamber via a filter and an exhaust treatment chamber disposed below the coating chamber, the rectifying partition plate serves as the filter. A plurality of upper rectifying partition plates movably supported by upper guide rails arranged close to each other and a plurality of lower guide rails movably supported by the lower guide rails arranged below the upper guide rails. It is characterized by being composed of a lower flow straightening partition plate.

[Operation] In the present invention, since the rectifying partition plate is arranged close to and parallel to the filter, the static pressure chamber can be made small and the total height can be reduced. When exchanging the filter, an appropriate number of upper and lower flow regulating partition plates can be moved along the upper and lower guide rails to expose the entire laying surface, so that the filter exchanging work can be performed very easily and quickly. Moreover, since the filter can be placed on the rectifying partition and transported, it is safe without requiring excessive labor. Further, the operator can sit down on the rectifying partition plate to perform the filter replacement work, which is easy.

On the other hand, after the filter is replaced, the desired straightening effect can be guaranteed by arranging all the straightening partition plates in line. Since the conventional vertical beam material for holding the filter is not required, the phenomenon of paint mist rising is minimized and the effective air cleaning area is large, so that smooth operation with low air resistance for a long time and high quality coating can be performed.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

This embodiment is shown in FIGS. The basic structure of the coating booth is the same as the conventional structure, including the air supply chamber 1 (dynamic pressure chamber 2,
It consists of a static pressure chamber 3), a coating chamber 4 and an exhaust treatment chamber 5. Therefore, description of these is omitted.

Here, the technical feature of the present invention is that the rectifying partition plate 10 is movable.

That is, a plurality of upper rectifying partition plates 11 that are movably supported by upper guide rails 15 that are vertically movably close to the filter 30 and are arranged in parallel with the rectifying partition plate 10 are arranged below the upper guide rails 15. A plurality of lower rectifying partition plates 21 each movably supported by the lower guide rails 25 provided.
It consists of and.

FIG. 1 is an enlarged view of a main part and shows a normal operation state.
Reference numeral 7 is a reinforcing cross beam, which is arranged at a pitch of, for example, 1650 mm as in the state shown in FIG. One of each of the upper straightening plate 11 and the lower straightening plate 21 corresponds to this pitch. And one filter 30 is
The length Lf is the same as the booth width W (for example, 6 m), the width Wf is the same as the above pitch, and the booth is placed on the palletizer 31 and the wire net 32 that are bridged between the ceiling beams 28 and 28 in FIG. It is formed to be laid in the X direction which is the width direction. The ceiling beams 28, 28 are arranged on the side wall of the booth so as to extend in the Y direction which is the longitudinal direction of the booth.

To eliminate the gap, both ends of the filter 30 are fixed metal fittings 37, one-touch type stopper 36, movable metal fittings as shown in FIG.
35 is airtightly engaged with the cross beam members 7, 7.

By the way, the upper (lower) rectifying partition plate 11 (21) can be relatively moved in the Y direction to a plurality of fixed channels 12 (22) arranged at a constant pitch and unillustrated stupid holes of each fixed channel 12 (22). And an adjustment plate member 13 (26) which is engaged with the bolt and can be positionally fixed to the fixed channel 12 (22) by a bolt 14 (24), and which is fixed to the booth side wall via rollers 16 (26) as a whole ( It can be moved in the Y direction to the lower guide rail 15 (25).

Therefore, if the respective rectifying partition plates 11 and 21 are statically arranged as shown in FIG. 1, between the fixed channels 12 (22) (specifically,
Between the adjacent fixed channel 12 whose width is adjusted by the adjusting plate 13)
Is the air flow path R, and the dimension in the Y direction is the adjustment plate material 13 (2
It can be adjusted by changing the position in 6).

In addition, the length of each straightening partition plate 11, 21 is the booth width W (6
m) same size as single plate, but if necessary 2
An appropriate form such as a dividing plate structure can be adopted. Also,
The width can be implemented even if it is not half the pitch between the horizontal beam members 7.
The moving direction of each rectifying partition plate 11 and 21 and the laying direction of the filter 30 may be appropriately selected and determined depending on the shape and size of the booth.

With such a structure, the height of the static pressure chamber 3 is 20 to
It can be as low as 80 cm. In this embodiment, the length is 30 to 60 cm for convenience of sitting work.

 Next, the operation will be described.

(Normal operation) The upper (lower) rectifying partition plates 11 (21) are aligned in the manner shown in FIG. 1, and the rectifying partition plate 10 is set. The rectifying effect may be made uniform by adjusting the position of each adjusting plate member 13 (23).

Therefore, the air from the dynamic pressure chamber 2 is uniformly rectified by the rectifying partition plate 10 and is supplied to the coating chamber 4 through the filter 30.

(Replacement of Filter) An appropriate number of upper (lower) rectifying partition plates 11 (21) are moved in the Y direction in FIG. 1 along the upper (lower) guide rails 15 (25). After the movement, the filter 30 surface is exposed to the dynamic pressure chamber 2. Here, as shown in FIG. 4, the worker removes the movable metal fittings 35, 35 in a comfortable posture while sitting on the upper rectifying partition plate 11, removes and winds the used filter 30 to rectify the upper rear (lower) rectification. A new filter placed on the partition plate 11 (21) and then placed on another upper (lower) rectifying partition plate 11 (21) and conveyed.
30 is installed at a stretch in the X direction between the cross beam members 7,7 and movable metal fittings 35,35
You only have to set the seal.

In this way, the upper (lower) rectifying partition plate 11 (21) is moved to another place and restored, and the filters 30 in the longitudinal direction of the booth are sequentially replaced. You can work simultaneously at several or dozens of locations at the same time.

Thus, according to this embodiment, the straightening partition plate 10 is composed of a plurality of upper (lower) straightening partition plates 11 (21),
Upper (lower) guide rails close to 30 and arranged in parallel
Since they can be moved to 15 (25) respectively, the complicated work and heavy labor such as the conventional work of rotating the current plate and the filter holder can be eliminated, and the replacement work of the filter 30 can be performed quickly and easily.

Further, since the upper (lower) rectifying partition plate 11 (21) can be moved by an appropriate number of places, the old and new filters 30 can be transported safely and quickly, and the replacement work of the filters 30 can be carried out in a comfortable posture. So you can work comfortably and efficiently. Moreover, since parallel work can be performed at several places at once, the efficiency can be further improved.

Also, the upper (lower) rectifying partition plate 11 (21) is a filter
Since it can be disposed close to 30, the height of the static pressure chamber 3 can be made small, and the height of the entire booth can be made low, so that the facility economy is also advantageous. Since the upper (lower) rectifying partition plate 11 (21) is horizontally moved and does not need to be raised to the dynamic pressure chamber 2 as in the conventional case, the height of the dynamic pressure chamber 2 can be reduced. On the other hand, since the height of the dynamic pressure chamber 2 can be increased within the allowable limit, the rectification effect can be further improved.

Further, since the upper (lower) rectifying partition plate 11 (21) can be made to have the same size and the same structure, the size of the filter 30 can be made uniform, and the replacement work efficiency can be improved also from this point.

Further, since the upper (lower) rectifying partition plate 11 (21) is moved in the booth longitudinal direction (Y direction), the filter 30
Can be laid in the booth width direction (X direction), so that the reinforcing cross beam members 7, 7, ... Are sufficient for the mechanical strength, and the vertical beam members 8, 8, .. Therefore, it is possible to minimize the rising phenomenon of the paint mist under the vertical beam member 8 including the intersections 9 shown in FIG. The conventional drawbacks of increased road resistance and increased height due to the vertical beam member 8 shown in FIG. 7 can be eliminated, and the booth can be constructed low also from this point.

[Advantages of the Invention] As is apparent from the above description, the present invention provides a plurality of upper rectifying partition plates, each of which is movably supported by an upper guide rail in which the rectifying partition plates are close to and parallel to the filter. Since it is composed of a plurality of lower rectifying partition plates, each of which is movably supported by a lower guide rail that is arranged close to the lower part of the guide rail, the total height is made low, and filter replacement work can be done rapidly. It can be done easily and safely, and can guarantee smooth operation for a long time and high quality of coating.

[Brief description of drawings]

FIG. 1 is an enlarged view of a main part showing an embodiment of the present invention, FIG. 2 is the same overall configuration diagram, FIG. 3 is a view for explaining the disposition state of the rectifying partition plate, and FIG. Similarly, FIG. 5 to FIG. 7 are views for explaining the sitting work, and FIG. 5 to FIG. 7 show a conventional air-supply coating booth, FIG. 5 is an overall configuration diagram, and FIG. 6 is a diagram for explaining a planar laying state of the filter. And FIG. 7 is a diagram for explaining a three-dimensionally laid state of the filter. 1 ... Air supply chamber, 2 ... Dynamic pressure chamber, 3 ... Static pressure chamber, 4 ... Painting chamber, 5 ... Exhaust treatment chamber, 10 ... Rectifying partition plate, 11 ... Upper rectifying partition plate, 15 …… Upper guide rail, 21 …… Lower flow divider, 25 …… Lower guide rail, 30 …… Filter.

Claims (1)

[Claims] 1. An air supply chamber in which a dynamic pressure chamber and a static pressure chamber to which conditioned air is fed are vertically connected to each other via a rectifying partition plate,
In a supply booth with an air supply consisting of a coating chamber disposed below the air supply chamber via a filter and an exhaust treatment chamber disposed below the coating chamber, the rectifying partition plate serves as the filter. A plurality of upper rectifying partition plates movably supported by upper guide rails arranged close to each other and a plurality of lower guide rails movably supported by the lower guide rails arranged below the upper guide rails. A paint booth with air supply characterized by being composed of a lower flow rectifying partition plate.