JPH0363438B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a coating device for automatically coating an object to be coated.

(Prior Art and its Problems) Devices equipped with a coating roller are widely used as devices for automatically painting relatively large members such as building materials. However, in such a device, as shown in FIG. 4, when the surface of the object 1 to be coated has grooves 2 or other irregularities, or there are notches 3 at the corners, the rollers 4 move over these grooves. It has the disadvantage that it cannot be applied to the areas where it is painted, resulting in unpainted areas.

On the other hand, in the case of a spray method in which the paint is sprayed onto the surface of the object to be painted, there are fewer unpainted areas as described above, but the coating efficiency not only decreases due to the paint dissipating into the air, but also The drawback is that environmental problems such as the effects of organic solvents contained in the scattered paint on the human body cannot be ignored.

There is also a coating device that brings the rotary brush into contact with the groove 2 or notch 3 and paints while rotating this rotary brush by another drive means. is necessary, and
Similar to the above-mentioned spraying method, there is a risk that paint containing an organic solvent will scatter into the air due to the rotation of the brush, and since the brush paints while drawing a circular arc, it may cause damage to the grooves 2, notches 3, etc. There were drawbacks such as the side surfaces not being painted evenly.

(Objective of the Invention) The present invention is intended to overcome the above-mentioned drawbacks, and it is possible to coat grooves and notches on the surface of the object to be coated, and to do so efficiently without causing environmental problems. It is an object of the present invention to provide a coating device that can perform coating with high paint quality.

(Means for Achieving the Object) In order to achieve the above-mentioned object, the coating device according to the present invention includes a rotating shaft that is rotatably supported, and a rotating shaft that is spaced apart from each other by a predetermined distance in the longitudinal direction of the rotating shaft. brushes are arranged in a row, and a plurality of rows of brushes are arranged at predetermined intervals around the rotating shaft, and one row of the brushes arranged in the row is used for painting; A group of brushes with other rows as spares, and a group of brushes that move the painting brush and the object to be painted in a direction along the surface of the object while the painting brush is in contact with the surface of the object to be painted. and a paint supply mechanism that supplies paint to a predetermined position in front of the brush during painting or directly to the brush during painting with respect to the direction of movement.

(Example) FIG. 1 shows a schematic perspective view of a coating apparatus that is an example of the present invention. In the figure, a sheet member 10 as an object to be coated has a groove 11 and notches 12 and 13 in its longitudinal direction. on the other hand,
The coating device 20 includes a wheel conveyor 21 and a motor (not shown) for driving the wheel conveyor 21 as a moving mechanism for moving the sheet member 10 in the direction of arrow A. Two parallel columns 22a and 22b are provided across this wheel conveyor 21,
The tops of these parallel columns 22a, 22b are connected by a beam 23. Further, a brush support rod 25 is installed in the middle of these parallel columns 22a, 22b, and is rotatable in the direction of arrow B according to the rotation of the handle 24. Brush fixing members 27a to 27c having painting brushes 26a to 26c, respectively, are transparently provided therein. And these painting brushes 26
a to 26c are positioned so as to contact the groove 11 and the notches 12 and 13 of the sheet member 10.

Furthermore, a tank support beam 29 is provided above the parallel columns 22a, 22b to support the paint tanks 28a to 28c. The lower end of the paint supply hoses 30a to 30c extending from the paint tanks 28a to 28c is connected to a paint brush 26a.
It is located near the tip of the paint brushes 26a to 26c, and can supply paint to a predetermined position in front of the painting brushes 26a to 26c in the moving direction A. Note that the paint tanks 28a to 28c are
The paint is supplied from a main tank (not shown).

FIG. 2 is an enlarged view of the vicinity of the painting brush 26a, and the other painting brushes 26b and 26c have a similar structure. In this FIG. 2, the brush support rod 25 is located above the brush fixing member 27a.
A through hole 31 is provided for passing through the brush support rod 25, and the brush support rod 25 is fixed to the brush support rod 25 by a tightening knob 32. A slidable arm 34 extends downwardly through a vertical through hole 33 provided adjacent to the through hole, and is secured by a tightening knob 35.

At the bottom of the arm 34, there is a paint brush 26 at the tip.
A brush main body 36 having a diameter a is pivotally supported by a pivot shaft 37, and the angle between the arm 34 and the brush main body 36 can be changed. A paint discharge pipe 39 to which the paint supply hose 30a is connected is provided at the end of the brush body 36, and the tip 40 of this paint discharge pipe 39 is connected to the paint brush 26a.
It opens in front of. In addition, the arm 34' includes
Via the same thing as the pivot shaft 37 and the brush body 36,
Other brushes similar to the painting brush 26a (not shown)
is set as a spare brush, and by turning the handle 24, the brush can be replaced instantly.

Next, the operating method and operation of this device will be explained.
First, the groove 11 present in the sheet member 10 in FIG.
and the positions of notches 12 and 13. Then, slide the brush fixing members 27a to 27c on the brush support rod 25 to position the painting brushes 26a to 26c near the upper portions of the grooves 11 and notches 12 and 13. 26c is positioned and fixed to the brush support rod 25 using the tightening knob 32 shown in FIG. Also, arm 34
After raising and lowering, the tightening knob 35 is tightened to perform positioning in the height direction. Furthermore, painting brush 2
The angle of the tips of 6a to 26c is determined by the angle of the pivot shaft 37 (second
This is determined by rotating the brush body 36 around the figure. The paint discharge pipe 39 is connected to the brush body 36
Therefore, when the inclination angle of the brush body 36 is changed, the inclination angle of the paint discharge tube 39 is also changed accordingly, and paint can always be supplied to the front of the brush 26a.

Next, the paint tanks 28a to 28c are filled with paint so that the paint can be supplied through the paint supply hoses 30a to 30c. Then, the wheel conveyor 21 is rotated to introduce the sheet member 10,
When moving in the direction of arrow A, paint is continuously drawn from the tip 40 of the paint discharge pipe 39 into the groove 11 and the notch 1.
2,13. And sheet member 1
As the paint moves, the paint brushes 26a to 26c in contact with the surface of the sheet member 10 apply the paint to the surfaces of the grooves 11 and the notches 12 and 13. When painting of one sheet member 10 is completed,
Other sheet members are introduced one after another and similar processing is performed. Before and after painting process and painting brush 26a
-26c, etc., when inspecting the handle 24
By operating the painting brushes 26a to 2,
These can be inspected or replaced by rotating 6c in the direction of arrow B.

On the other hand, the flat surfaces other than the grooves 11 and notches 12 and 13 may be coated continuously after this treatment using a roller method or the like, and such a mechanism can also be incorporated into this apparatus. It is possible to paint the flat parts before the above-mentioned treatment, but if painting with a brush, the grooves 11 and notches 1
The paint may spill out from the parts 2 and 13 onto the surrounding flat parts, so in order to flatten them, it is desirable to paint the flat parts after this treatment. Further, if a paint receiver (not shown) is provided on the floor below the painting brushes 26a to 26c, contamination by leaked paint can be prevented.

In this way, the grooves 11 and notches 12, 13 of the sheet member 10 can be efficiently painted, but the present invention is not limited to the above embodiments.
For example, as shown in FIG. 3a, the paint discharge pipe 39
The tip of the brush body 36 can be placed adjacent to the painting brush 26a to supply paint onto the painting brush 26a, or as shown in FIG. It can also be supplied onto the painting brush 26a from the inside of the painting brush 26a. More simply, as shown in FIG. may be supplied to Furthermore, it is not essential that the tip of the paint supply mechanism be adjacent to the brush; for example, as shown in FIG. 3d, the tip of the paint supply mechanism may be supported separately from the painting brush 26a using a support rod 43. , it is also possible to supply the paint at any position in front of the brush.

Further, in the above embodiment, the sheet member 10 as the object to be painted is moved, but on the contrary, the painting brushes 26a to 26c, the paint supply mechanism, etc. may be moved to perform the painting, and the painting may be performed relatively. It is sufficient if a certain amount of movement is achieved. Furthermore, the same treatment is possible for objects to be coated, not only sheet members but also wire rods and others. There are no particular limitations on the shape of the brush or the configuration of the paint supply mechanism.

(Effects of the Invention) As explained above, the coating device of the present invention includes a plurality of rows of brushes arranged at predetermined intervals around a rotatably supported rotation shaft, and
One row of the brushes arranged in a row is used for painting, and the other row is used for backup, and while the painting brush is in contact with the surface of the object to be painted, the brushes for painting and the object to be painted are The paint is supplied to a predetermined position in front of the brush during painting in the direction of movement, or directly to the brush during painting, so that it can be applied to grooves and notches on the surface of the object to be painted. Painting can be done extremely efficiently without causing environmental problems due to paint scattering as with spraying or rotating brush methods.Moreover, by simply rotating the rotating shaft, multiple painting brushes can be applied. Since you can replace the spare brushes all at once, during painting, the solvent in the paint evaporates, the paint adhering to the brush dries, and the paint becomes more solidified, allowing for stable painting to continue. Even if there is a risk of difficulties, you can deal with them without any problems.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view of a coating device which is an embodiment of the present invention, Fig. 2 is an enlarged view showing the area around the brush of the device shown in Fig. 1, and Fig. 3 is a view showing a modification of the invention. , FIG. 4 is a diagram showing a roller type coating device. 1, 10... Sheet member, 2, 11... Groove,
3, 12, 13...notch, 20...painting device, 2
1...Wheel conveyor, 26a-26c...Brush, 28a-28c...Paint tank.

Claims (1)

[Scope of Claims] 1. A rotating shaft supported rotatably, brushes arranged in a row at predetermined intervals in the longitudinal direction of the rotating shaft, and the brushes in the row being rotated as described above. A group of brushes arranged in multiple rows around a shaft at predetermined intervals, one row of brushes arranged in the row for painting and the other rows for backup; a moving mechanism that relatively moves the painting brush and the object to be painted in a direction along the surface of the object to be painted while in contact with the surface of the object to be painted; A coating device comprising: a paint supply mechanism that supplies paint to a predetermined position in front of the brush or directly to the brush during painting.