JPS6320185B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a coating device.

Conventionally, in a normal painting process, a method has generally been adopted in which a so-called spray nozzle is used to spray paint in the form of a spray. When using a spray nozzle, the paint is sprayed onto the painted surface in the form of extremely fine particles, making it easier to achieve a uniform coating.
It has the advantage of being less likely to cause drips on the painted surface. However, on the other hand, the coating rate is usually 50
% to 70%, so if you want to give the painted surface smoothness or water repellency by painting, even if you repeat the painting several times, it will still not be sufficient, especially when painting. It was completely unsuitable for filling holes in surfaces. Furthermore, although it is possible to increase the coating rate with brush coating, it is extremely inefficient and cannot be automated, making it difficult to employ, especially when the surface to be coated is large.

An object of the present invention is to provide a coating device that has an extremely high coating rate, excellent work efficiency, and is easy to automate.

The present invention provides an elevating member that moves up and down along an elevating rail, and also provides an air blow nozzle and a shower coat nozzle in a state where the air blow nozzle is positioned above the shower coat nozzle, and the air blow nozzles are close to each other. The tips of the two outlets are tilted so that the blown air collides with each other at a predetermined distance from the outlet, and air and paint from the air blow nozzle and shower coat nozzle move in the downward direction of the lifting member. A spray timing control means is provided to control the spray to be sprayed at the same time. As a result, when the elevating member is lowered, the paint is sprayed onto the painted surface from the shower coat nozzle, and paint drips that occur on the painted surface are removed from the air blow nozzle at a predetermined position in two directions. The object is to be achieved by blowing air in a colliding manner to eliminate and eliminate the particles, thereby making the coating state uniform.

Embodiments of the present invention will be described below based on the drawings.

1 and 2 show the overall structure of an embodiment of a coating apparatus according to the present invention.

In these figures, the main body frame 1 has a cross section L
It is formed into a vertically elongated cube shape using a letter-shaped frame material, and is supported by a pedestal 2 at its lower end. The pedestal 2 is placed on a truck 3, and the truck 3 is provided with iron wheels 4. The iron wheels 4 are guided by a bogie rail 5, and the bogie 3, the pedestal 2 on the bogie 3, and the main body frame 1 are movable along the bogie rail 5, and a toggle clamp is attached to the bottom side of the bogie 3. 6 is sprayed on, and the toggle clamp 6 allows the bogie 3 to be locked at any position on the bogie rail 5.

Two lifting rails 11 having an L-shaped cross section are provided on the main body frame 1 in parallel with each other along the vertical direction, and an lifting member 12 is supported on these lifting rails 11 so as to be able to move up and down.

The elevating member 12 has respective elevating rails 11.
Two vertical frame members 14 having pulleys 13 on both ends that slide on the top, and two horizontal frame members 15 that connect these two vertical frame members 14 and form a substantially rectangular frame shape together with the vertical frame members 14. A chain dock 16 is provided between the horizontal frame members 15 so as to be slidable along the horizontal direction while being guided by the horizontal frame members 15.

Further, the elevating member 12 includes a rod 17 extending in the horizontal direction, and both ends of the rod 17 reach the outside of the main body frame 1, and gun brackets 18 are attached to both ends.

A support member 21 is provided on the chain dock 16 so as to protrude toward the front side in FIG. A coat nozzle 23 is attached.
The air blow nozzle 22 has two blow-off ports 24 that are close to each other, and these two blow-off ports 2
4 are tilted so as to approach each other slightly, and the air blown out from the two air outlets 24 collides with each other at a position a predetermined distance away from the air outlets 24 where the painted surface is arranged. There is.

Further, the shower coat nozzle 23 is oriented in a substantially horizontal direction, and is configured to blow out approximately 2 to 30 times as much paint as usual in a shower shape. Note that an air supply hose and a paint supply hose (not shown) are connected to the air blow nozzle 22 and the shower coat nozzle 23, respectively, and compressed air and paint are supplied from these hoses to the air blow nozzle 22 and the shower coat nozzle 23, respectively. It is becoming more and more common.

The back side of the chain dock 16 in FIG. Lifting chain 25
is spanned between the upper sprocket 26 and the lower sprocket 27. The upper sprocket 26 is fixed to the tip of a rotating shaft 32 of a take-up unit 31 attached to the back side of a partition plate 28 stretched over the side edge of the lift rail 11 on the back side in FIG. The take-up unit 31 is vertically adjustable within a predetermined range, and the distal end of the rotary shaft 32 protrudes from the partition plate 28 toward the front in FIG.
The vertical position can be adjusted on the front side.

On the other hand, the lower sprocket 27 has a smaller diameter than the first sprocket 34 for the operating section.
It is also attached to the output shaft of the speed reducer 35. The reducer 35 is fixed to the back side of the partition plate 28,
The output shaft protrudes from the partition plate 28 toward the front side in FIG. 1, but the input shaft is located on the back side of the partition plate 28.
The transmission 3 via the wheel 36 and the speed change belt 37
It is connected to 8. The transmission 38 is attached to the output shaft of the motor 39 and has a speed change handle 40.

A second sprocket 41 for the operating section is provided a predetermined distance above the first sprocket 34 for the operating section, and a roller chain 42 is stretched between these sprockets 34, 41. The second sprocket 41 for the operating section is fixed to the end of the partition plate 28 of the rotating shaft 44 rotatably supported by a bearing 42, which protrudes toward the front side in FIG. A lower sprocket 51 for the operating section is fixed to the side end. In addition, the bearing 43
is fixed to a lower mounting base 52 that is attached to the back side of the partition plate 28 so that its vertical position can be adjusted, and its vertical position can be adjusted within a predetermined range.

An upper mounting base 53 is located at a position above the lower mounting base 52 by a predetermined length on the back side of the partition plate 28.
It is installed so that its vertical position can be adjusted. A rotating shaft of an upper sprocket 54 for the operating section is pivotally supported on the upper mounting base 53, and a roller chain 55 is spanned between the upper sprocket 54 for the operating section and the lower sprocket 51 for the operating section.

Further, the slider rail 61 is supported by the lower mounting base 52 and the upper mounting base 53 in close proximity to one side of the roller chain 55, and the two sliders 62 and 63 are mounted on the slider rail 61 at the mounting positions. Mounted so that it can be displaced. On the other hand, a limit switch 56 is attached to the roller chain 55, and when the roller chain 55 is rotated and the limit switch 56 passes one side of the movers 62, 63, the operator of the limit switch 56 is moved to the mover 62, 63. 63 to operate.
Here, the spraying timing control means includes the roller chain 55, the limit switch 56, and the movers 62 and 63.

Next, the operation of this embodiment will be explained.

When the motor 39 is powered on and driven, it passes through the transmission 38 and reduction gear 35, and then the lower sprocket 27 and the first sprocket 34 for the operating section.
is rotated. When the lower sprocket 34 is rotated, the lifting chain 25 is rotated, and on the other hand, when the first operating sprocket 34 is rotated, the roller chain 55 is rotated via the second operating sprocket 41 and the lower operating sprocket 51. However,
Here, the lifting chain 25 and the roller chain 55 are designed to be rotated synchronously, and the rotational speed of these chains 25, 55 is determined by the speed change handle 4.
Adjusted by 0.

The fact that the lifting chain 25 and the roller chain 55 are rotated synchronously means that the roller chain 55
It can be said that the lifting chain 25 is scaled down. Therefore, the mounting position of the limit switch 56 on the roller chain 55 is changed to
This corresponds to the mounting position in the lifting chain 25 of No. 2. At the same time, the mounting positions of the sliders 62 and 63 on the slider rail 61 are adjusted, and only when the limit switch 56 is passing between the sliders 62 and 63, air is blown by a latch relay device or the like connected to the limit switch 56. Nozzle 2
2 and the shower coat nozzle 23, the lifting chain 2
The air blow nozzle 22 and the shower coat nozzle 23 can be operated only when the elevating member 12, which is raised and lowered by the rotation of the arrow 5, is moving within a predetermined range in a predetermined direction.

Specifically, when the elevating member 12 is descending within a predetermined range along the elevating rail 11, the air blow nozzle 22 and the shower coat nozzle 2
Adjust the movers 62 and 63 so that 3 is activated. Further, the painted surfaces are arranged to face each other in a substantially vertical direction within a predetermined movement range of the nozzles 22 and 23. Approximately 2 to 30 times more paint is sprayed from the shower coat nozzle 23 than the amount sprayed by a normal spray nozzle, but the painted surface is evenly leveled from top to bottom by the air blown from the air blow nozzle 22. Therefore, there will be no paint dripping on the painted surface, and excess paint will fall from the top to the bottom, and the paint that is not coated on the painted surface may fall downward from the painted surface. be.

According to this embodiment, the coating rate is extremely high and uniform coating can be performed. Therefore, it is particularly suitable for applying smoothness and water repellency to a painted surface by painting, and there is no need for repeated painting as in the past. Also,
Filling holes in painted surfaces can also be easily done. In particular, in this embodiment, the air blow nozzle 22 is provided with two blow-off ports 24 so that the air blown out from them collides exactly on the painted surface, so that the leveling of the painted surface by the air flow is extremely effective. It can be done in a specific manner.

Furthermore, since it can be painted automatically without the need for manual labor,
It has excellent work efficiency and can be easily used when painting large surfaces. In particular, according to this embodiment, the air blow nozzle 22 and the shower coat nozzle 23 are controlled by the limit switch 56 and the like.
Since the timing at which air and paint are injected is regulated, further automation of painting can be achieved.

As described above, according to the present invention, it is possible to provide a coating device that has an extremely high coating rate, excellent work efficiency, and is easy to automate.

[Brief explanation of the drawing]

1 and 2 are a front view and a right side view showing the overall configuration of an embodiment of a coating apparatus according to the present invention. DESCRIPTION OF SYMBOLS 11... Elevating rail, 12... Elevating member, 16... Chain dock, 22... Air blow nozzle, 23
...Shower coat nozzle, 25...Elevating chain,
55, 56, 62, 63...Roller chain, limit switch, and mover constituting the spray timing control means.

Claims (1)

[Claims] 1 A lifting rail provided along the vertical direction,
An elevating member that moves up and down along the elevating rail, an air blow nozzle that blows air onto the painted surface, a shower coat nozzle that sprays paint onto the painted surface in a shower, and air and paint from the air blow nozzle and shower coat nozzle. and a spraying timing control means for controlling the spraying when the elevating member moves downward, and the air blow nozzle and the shower coat nozzle are arranged so that the air blow nozzle is positioned above the shower coat nozzle when the elevating member is moved downward. The air blow nozzle is attached to a member, and has two outlets that are close to each other, and the tip side is configured such that the air blown from these two outlets collides with each other at a position a predetermined distance from the outlet. A painting device characterized in that the devices are installed at an angle so as to be close to each other.