JPS6252629B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coating device for uniformly coating architectural boards with complex and diverse patterns.

Conventionally, in order to add a pattern to a construction board, a spray gun 9 was used to apply paint to the construction board 5 conveyed by a roller conveyor 8 as shown in FIG. However, one spray gun 9 can only paint one row of the same color or a simple pattern, and in order to paint complex and diverse patterns, it is necessary to increase the number of spray guns 9. However, this not only increases equipment costs and complicates the control device, but also poses problems in the responsiveness and product life of the spray gun 9 under frequent and high cycle use.

The present invention was made in view of these conventional problems, and by forming a paint pattern on a paint roll, it is possible to create uniform and complex patterns such as shading patterns and shading patterns on architectural boards. Can be painted extremely easily and stably,
Moreover, it is an object of the present invention to provide a pattern coating device for architectural boards that can blur the outline of a pattern.

In other words, the apparatus for coating construction boards with patterns according to the present invention includes a coating roll 1 having protrusions 2 forming a pattern on the outer circumferential surface, and a paint 3 being supplied to the protrusions 2 of the coating roll 1 in an adjusted amount. The present invention is characterized in that it is composed of a paint supply means 4 for applying the paint, and a paint dropping means 6 for dropping the paint 3 supplied to the convex part 2 of the paint roll 1 onto the building board 5 to apply it. The present invention will be described below based on embodiments shown in the accompanying drawings. 2 and 3 show one embodiment of the invention. A convex portion 2 is provided on the outer peripheral surface of the coating roll 1 to form a pattern on the coating roll 1. The convex portion 2 is formed from a material with excellent hygroscopicity and elasticity, such as felt, sponge, or a brush. In this embodiment, a brush is used to form the convex portion 2. In this embodiment, the paint supply means 4 for supplying paint to the convex portions 2 of the paint roll 1 is a transfer roll 4.
1 and an intermediate roll 42, the transfer roll 41
The outer circumferential surface of the transfer roller 41 is in contact with the paint 3 in the coating tank 11, and the outer circumferential surface of the transfer roll 41 and the outer circumferential surface of the intermediate roll 42 are in contact with each other and are driven to rotate integrally. The outer peripheral surface of the intermediate roll 42 is in contact with the convex portion 2 of the coating roll 1, and the paint 3 is supplied to the convex portion 2 of the coating roll 1. As the paint dropping means 6, a scraper 61 is employed in this embodiment.
The scraper 61 is adjusted and fixed by a scraper adjustment bolt 16 so that the tip thereof bites into the convex portion 2 of the coating roller 1. Next, the operation of this embodiment configured as described above will be explained. First, the paint 3 is supplied to the paint tank 11 by the circulation pump 12. This paint tank 11 has an overflow structure to keep the paint level constant, and the overflowing paint 3 is collected into a circulation tank 14 via a collection gutter 13. After the coating level in the coating tank 11 becomes constant, the transfer roll 41 is driven by a drive motor with a transmission (not shown) to transfer the paint 3 to the transfer roll 41, and then to the intermediate roll 42. After that, the coating roll 1 is driven by another drive motor with a transmission (not shown), and the coating roll 1 is
The paint 3 is supplied only to the convex portions 2. intermediate roll 4
When the paint 3 transferred to the paint 2 is supplied to the convex portion 2 of the coating roll 1, the amount of the paint 3 to be supplied is adjusted using a doctor knife 15. In this case, doctor knife 1
The supply amount of the paint 3 may be adjusted by adjusting the gap between the roller 5 and the intermediate roll 42 or by providing a groove in the doctor knife 15. The paint 3 supplied to the convex portion 2 of the paint roll 1 is flicked off by the scraper 61, and the sputtered paint 3 is applied onto the architectural board 5 conveyed by the roller conveyor 8, so that the architectural board 5 is patterned with a shading pattern or a blurred pattern. Perform patterned painting. In this case, since the paint 3 is removed by the scraper 61 during painting, the outline of the pattern can be blurred. Furthermore, in this case, since the transfer roll 41 and the coating roll 1 have separate drive units, by changing the rotation speed, it is possible to adjust the amount of coating onto the architectural board 5 and also change the flow direction of the pattern. can. In this way, a uniform pattern can be formed by applying a certain amount of paint to the architectural board 5. In the figure, 17 is a tapping plate bolt, and 18 is a bearing. FIG. 4 shows another embodiment of the first invention, and this embodiment is an example in which an air gun 62 is used as the paint dropping means 6. By constantly blowing off the paint 3 supplied to the convex portions 2 of the paint roll 1 with the air gun 62, a constant amount of paint is always applied to the architectural board 5, and a uniform shading pattern or blurred pattern without sharp outlines is created. Can be painted with a pattern.
Note that the architectural board patterned by the device of the present invention is
For example, it can be used as a multicolored matte roof tile.

As explained above, in the pattern painting apparatus for architectural boards of the present invention, by forming a paint pattern on the paint roll, uniform and complex patterns such as shading patterns and shading patterns can be applied to the construction. It is possible to paint the construction board extremely easily and stably, and since the paint is supplied to the convex part of the coating roll and the paint is dropped onto the construction board by the paint dropping means, it is possible to paint the construction board very easily and stably. The outline of the pattern can be made unclear. As described above, according to the coating apparatus of the present invention, various architectural boards such as multi-colored brushed roof tiles can be manufactured.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a conventional example, FIG. 2 is a schematic overall diagram showing an embodiment of the first invention of the present invention, and FIG.
The figure is a side view showing the mounting state of the bearing of the scraper same as above, and FIG. 4 is a schematic overall view showing another embodiment of the first invention, in which 1 is a coating roll, 2 is a convex part of the coating roll, 3 is the paint, 4 is the paint supply means, 4
1 is a transfer roll, 42 is an intermediate roll, 43 is a paint supply pipe, 5 is a construction board, 6 is a paint dropping means,
61 is a scraper, 62 is an air gun, 8 is a conveyor, 11 is a paint tank, 12 is a circulation pump, 1
3 is a collection gutter.

Claims (1)

[Claims] 1. A paint roll having convex portions on its outer circumferential surface that form a pattern, a paint supply means for adjusting the amount and supplying paint to the convex portions of the paint roll, and a paint supply means for supplying paint to the convex portions of the paint roll. A patterned coating device for architectural boards, characterized by comprising a paint dropping means for dropping paint onto the building boards.