JPH0722734B2 - How to paint building boards - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a technique of randomly coating paints of two or more colors on a building board such as a roof tile and applying different coatings to each manufactured product.

[Background technology]

A roof constructed by randomly arranging various types of roof tiles with different paints (paint width, color, paint position, etc.) has been used recently, but different paint patterns are used to construct such a roof. A great variety of roof tiles are required.

In the conventional painting process, the position of the painting nozzle was fixed, so a large number of building boards (tiles) with the same painting were manufactured continuously, and various paintings were given. When a building board is needed, either that number of painting processes is required, or it is necessary to switch to lot production and change painting for each lot. Therefore, the former requires a large equipment cost and requires a large equipment space, and the latter requires a complicated cleaning and preparation work for each lot change, resulting in extremely low efficiency. Moreover, even when various kinds of architectural boards with different coatings are randomly set and shipped, it is time-consuming to produce the same kind of products once in large quantities, and then randomly combine and pack and ship them.

[Object of the Invention]

The present invention has been made in view of the above technical background, and its purpose is to enable continuous production while changing the coating pattern of a construction board with different coatings. To do.

[Disclosure of Invention]

According to the method for coating a building board of the present invention, a plurality of coating nozzles 4a, 4b, ... for discharging coating materials 3a, 3b, ... of different colors are provided above a transporting path 2 for transporting an object 1 to be coated. 4a, 4b ...
Are movable independently of each other in a direction perpendicular to the direction of transport of the article to be coated 1, and the position of the coating nozzle is moved for each article to be coated 1 transported through the transport path 2. By this, in one coating process, the objects 1 to be coated with different coatings can be continuously manufactured, and random coating can be performed.

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
Is composed of a roller conveyor 6 in which a plurality of rotatable rollers 5 are arranged in parallel, and coating nozzles 4a, 4b for ejecting the paint 3a3b in a mist form together with air are arranged above the conveying path 2. Has been done. In the embodiment, two sets of coating nozzles 4a, 4b are arranged in parallel in two rows for two-color coating, but when more multi-color coating is performed, the number of sets of coating nozzles 4a, 4b ... Are arranged according to the number of colors. It is something to keep. Further, each of the coating nozzles 4a, 4b can be moved along the rail 7 in the direction perpendicular to the transport direction of the transport path 2,
4b is moved along a rail 7 by a servo motor 8, and this servo motor 8 is controlled by a computer 9.

Then, immediately after surface coating along the transport path 2 (wet state)
When an article to be coated 1 such as a roof tile having a width twice that of the product is conveyed, a predetermined paint 3 is applied from each of the coating nozzles 4a and 4b.
A and 3b are discharged and coated on the object 1. The left and right coating patterns of the two objects to be coated 1 may be the same, but may be different patterns. When the coating of the article 1 to be coated is completed, a signal is output from the computer 9 to the servomotor 8 to move the coating nozzles 4a and 4b, and the coating nozzle 4a, 4a,
By 4b, paints 3a and 3b are applied in a different pattern from the previous one. After this, the coating nozzles 4a and 4b are moved again, and in this manner, the respective coating objects 1 are coated with different patterns. After painting, each article 1 to be coated is cut into two pieces from the center, dried, commercialized into a building board, and palletized.

In the illustrated example, the product width is twice as wide as the product width, but the product width may be applied one by one. Further, the coating nozzles 4a or 4b of each set may be moved integrally, or may be moved separately, and various other design changes are possible, and the object to be coated 1 may be any roof tile or the like. It is not limited.

〔The invention's effect〕

As described above, according to the present invention, a plurality of coating nozzles for discharging paints of different colors are arranged above a conveying path for conveying an object to be coated, and each of the coating nozzles is independent of each other and is perpendicular to the conveying direction of the object to be coated. It is possible to move in any direction, and the position of the coating nozzle is moved for each object to be coated that has been transported through the transport path. Alternately, each coated object can be painted with different patterns in different colors, and one building process can be used to continuously manufacture different building boards. The advantage is that
Therefore, unlike the conventional case where multiple painting processes are installed, it can be painted at low cost without the equipment cost, does not occupy the equipment space, and the lot switching is performed as in the case of changing the paint for each lottery. There is an advantage that painting can be done efficiently without the need for cleaning and preparation. Then, by packing the continuously painted building boards as they are, it is possible to set the building boards in a random combination immediately.

[Brief description of drawings]

1 and 2 are side and front views showing an apparatus for carrying out the method of the present invention, and FIGS. 3 (a), (b) and (c are positions of various coating nozzles and coating pattern examples in the same as above. 1 is a schematic plan view showing 1 to be coated 2 to be a conveying path, 3a and 3b
Is paint and 4a and 4b are painting nozzles.

Claims (1)

[Claims] 1. A plurality of coating nozzles for discharging paints of different colors are arranged above a conveying path for conveying an object to be coated, and the respective coating nozzles are independent of each other in a direction perpendicular to the conveying direction of the object to be coated. A coating method for a building board, characterized in that the position of a coating nozzle is moved for each object to be coated that is transported on a transport path.