JPH0728937Y2 - painting booth - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a coating booth, and more particularly to a coating booth suitable for hand-blown coating of a long workpiece.

INDUSTRIAL APPLICABILITY The present invention can be particularly advantageously applied to the coating of long products having a length dimension of several meters to several tens of meters in relatively small-volume products, such as aircraft fuselage panels and wing panels. .

(Prior Art) Generally, a painting booth is roughly classified into an automatic painting booth and a so-called hand-blown painting booth. The former booth is suitable for coating mass-produced products such as automobile parts, while the latter booth is suitable for coating relatively small-volume products or special coatings individually.

A symbolic example of an automatic painting booth is a tunnel-type painting booth used for painting automobile bodies, which is done in assembly line.

On the other hand, the hand-blown painting booth has been conventionally used for painting small machine parts in a relatively small factory. The operator operates the coating machine by himself in the booth to perform spray coating on the suspended coated parts.

By the way, since the fuselage panel and the wing panel of an airplane are generally manufactured in small quantities and are often manufactured individually, a hand-blown coating booth is more suitable for coating them.

Conventionally, a hand-blown paint booth having a structure similar to a general-purpose booth used for painting small machine parts has been used for painting these panels and the like.

(Problems to be solved by the invention) However, since panels such as a part of an airplane are generally long and wide products having dimensions of about 2 to 5 m x 3 to 30 m, they are hung and hand-blown. In particular, it is difficult for an operator standing on the basic surface of the booth to properly orient the coating machine with respect to the top surface and the top surface of the product. If a method is adopted in which a special workbench is installed to paint the top surface and the operator rides on it to operate the coating machine, the workability will be poor and the productivity of the painted product will decline. was there.

Further, it takes a lot of investment and a lot of time to switch to the equipment for performing the coating operation by the automatic operation, which is equipped with the coating machine or the like according to the predetermined programming control, and cannot be adopted immediately.

The present invention has been made to improve this problem.
The purpose is to provide a coating booth that can perform long-lasting products, especially on the top, by hand spraying with good workability and good workability, and has a simple booth structure and does not require a large investment. To provide.

(Means for Solving the Problems) The present invention forms a long product insertion groove on the basic surface of a coating booth, and is incorporated into a conveying device that conveys a long object to be coated while suspending it. The present invention relates to a coating booth for coating a long product, which is equipped with an elevating mechanism that hangs the product in the product insertion groove and raises it.

The coating booth is not limited in form and type, and may be a wet coating booth or a dry coating booth, but the present invention can be more conveniently applied to a dry booth. In the case of a dry coating booth, it is composed of, for example, an air supply chamber (duct), a rectifying chamber, a coating chamber and an exhaust chamber (duct) from above, and the worker is the foundation of the coating chamber into which the product to be coated is carried. Operate the coating machine by standing on the surface.

The product insertion groove is long and has a size such that the lower part of a long product to be coated is accommodated in the base surface. Preferably, the insertion groove also serves as an exhaust chamber, and the air containing paint mist generated in the coating chamber is discharged to the outside through the exhaust duct by the operation of the exhaust fan. Note that a filter may be appropriately provided in the exhaust passage.

The elevating mechanism provided in the booth of the present invention is a mechanism for suspending and lifting a long product to be coated in the insertion groove, and is incorporated in a transporting device for carrying the product while it is suspended. For example, in the upper part of the coating chamber or the rectification chamber, a combination of a pinion to which a driving force is transmitted from the outside and a rack that meshes with the pinion is provided, and when the article to be coated is transported and reaches just above the insertion groove, the pinion The rack combination is combined with the transport rail that suspends the product to be coated,
Then, there is a mechanism that allows the article to be coated to be hung down in the insertion groove by the operation of the combination. It goes without saying that the mechanism may have other configurations.

(Operation) According to the present invention, in the process of hand-blown coating, the elevating mechanism is operated, the article to be coated is hung, and the lower part thereof is inserted into the insertion groove, so that the position of the top surface of the article to be coated is changed. It goes down relatively. Therefore, the worker can properly orient the coating machine on the top surface of the article to be coated while standing on the basic surface of the booth.

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

The coating booth of the embodiment is a booth for coating panels of various parts of an airplane, and has an overall outer shape as shown in FIG. In the figure, reference numeral 1 represents a booth.

As shown in FIG. 1, the interior of the coating booth 1 has a rectifying plate 14
It is divided into a rectifying chamber 16 in the upper part and a coating chamber 3 in the lower part. Air supply ducts 15, 15 are introduced into the rectification chamber 16 one by one on the left and right, and a filter 17 is attached to the lower surface of the duct 15, and the air supplied from the air source through the duct 15 is filtered by the filter 17. After being filtered, it is rectified in the chamber 16 and sent to the lower coating chamber 3. The flow of air is indicated by arrow f in the figure.

The coating chamber 3 is formed by forming a long product insertion groove 2 having a rectangular cross section on a base surface 4 on which an operator 20 stands (see FIG. 1). The insertion groove 2 has an arrester pad 21 in it.
Is connected to the exhaust duct 19 and the outside air. Therefore, the air containing the paint mist generated in the coating chamber 3 by the operation of the exhaust fan 18 is purified in the pad 21 and then discharged through the duct 19. .

As shown in FIG. 2, the main coating booth is equipped with a conveyor device that conveys an article to be coated 10 such as a main wing panel at a plurality of points by a suspension tool 9 while carrying it along a conveyor rail 8. By the operation, the coated product is conveyed horizontally above the insertion groove 2 and is conveyed to the drying chamber after the coating process (3rd
Figure). Although the conveyor rails 8 are at the same height in the booth, the portion located immediately above the insertion groove 2 (the length is slightly shorter than the entire length of the insertion groove 2) is divided from the other rail portions. , And only the divided portion 8a is connected to the lifting mechanism 5 described below.

Furthermore, the booth 1 of the embodiment comprises an elevating mechanism 5 incorporated in the carrying device. As shown in FIG. 1 and FIG. 2, this mechanism 5 is provided with two guides 11 with racks provided vertically above the conveyor rail 8 and each of which is in mesh with the rack 7 of the pinion. 6 is provided in the rectifying chamber 16, and the pinion 6 is a gear assembly to which driving force is transmitted from a motor or the like (not shown) via the shaft 13.
Connected with 12. The guides 11 and 11 are connected to the divided rail portion 8a. Therefore, when the article to be coated 10 is carried and reaches above the insertion groove 2, the pinion 6 is rotated by the driving force to the gear assembly 12, and the rack 7 and the divided rail portion 8a are lowered in the arrow + y direction. By doing so, the suspended article 10 to be coated is suspended in the insertion groove 2 to the position indicated by the double-dashed line, and the height of the top surface of the article 10 to be coated is lowered. On the contrary, by rotating the pinion 6 counterclockwise and raising the rack 7 in the arrow-y direction, the article to be coated 10 is pulled up to its original height.

Then, in the process of hand-blown painting in accordance with the ordinary method, the lower part of the article to be coated 10 is hung in the insertion groove 2 by the operation of the elevating mechanism 5 to lower the top surface of the worker 20. With the aid of standing on the basic surface 4, the coater can be well oriented, especially towards the top, so that the top coating quality of the finished coated article was much better than before. Moreover, the work efficiency of hand-painting was maintained at a high level.

(Effect of the Invention) As described above, according to the present invention, that is, since the lower part of the article to be coated can be hung down in the insertion groove formed on the booth base surface by the elevating mechanism, it is long and wide. Even if it is the product to be coated, the worker can properly orient the coating machine to the top surface of the product to be coated while standing on the basic surface of the coating booth. The effect is obtained that the coating can be performed particularly well on the top and with good workability.

Moreover, the coating booth of the present invention is economically advantageous because it has a simple structure and does not require a complicated automatic control device.

[Brief description of drawings]

1 is a view showing the inside of a coating booth according to an embodiment of the present invention, FIG. 2 is a view showing a lifting mechanism provided in the coating booth of FIG. 1, and FIG. 3 is a drawing of the coating booth of FIG. It is a top view. In the figure, 1 ... Painting booth 2 ... Product insertion groove 3 ... Painting room 4 ... Foundation surface 5 ... Lifting mechanism 6 ... Pinion 7 ... Rack gear 8 ... Conveyor rail 9 ... Lifting tool 10 ... … Long coated product 20 …… Worker

Claims (1)

[Scope of utility model registration request] 1. A long product insertion groove is formed on a base surface of a coating booth, and the product is incorporated into a conveying device that conveys a long product to be suspended while suspending the product in the product insertion groove. A coating booth for coating long products, which is equipped with a lifting mechanism that lowers and raises.