JP2000167442A - Multicolor sputtered pattern bell - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide high quality coating capable of coping with a need for pursuit of high designability such as the overlapping of random colors by saving the equipment space in the case of multicolor spattering coating and decreasing the maintenance time of coating equipments such as the cleaning of the coating equipments. SOLUTION: Coating materials are supplied to a bell cup through feed tubes 7, 8 corresponding to the number of colors and the atomized particles free from the mixing of the coating materials each having the different color are formed by keeping the flow of the coating materials in the bell cup at laminar flow and atomizing so that the coating materials each having the different color are not mixed with each other at the time of atomizing. The multicolor sputtering coating is performed only with one piece of a rotary atomizing coating machine by using the rotary atomizing coating machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating machine for performing multi-color sputter coating using a rotary atomizing coating machine used for design coating of building material boards and PCM.

[0002]

2. Description of the Related Art In the case of performing multi-color sputter coating, a spatter bell coating machine for the number of colors has been used. In this case, each color is sputter-coated in order of the number of colors.

[0003]

When a sputter coating is performed with a bell, a pattern width of about 1.5 m is required. Therefore, when performing multi-color sputter coating, the booth width is required in consideration of the use of spatter coating machines corresponding to the number of colors, which requires a large equipment space. Also in management, there is a problem that it takes 10 to 20 minutes for one coating apparatus, and in the case of multi-color, it takes a time corresponding to the number of colors.

[0004] In addition, when a sputter coating machine of only the number of colors is used, the overlapping order of colors is determined depending on the order of coating, and there is a need to pursue higher design properties such as random overlapping of colors. There was a problem that we could not meet.

[0005]

For this purpose, paint is supplied to the bell cup of the rotary atomizing coating machine with feed tubes of the number of colors, and the flow of the paint in the bell cup is maintained in a laminar flow region, and the atomization is performed. By atomizing so that sometimes different colors of paint do not mix, unmixed atomized particles of different colors of paint are created.

[0006]

By using such a rotary atomizing coating machine, multi-color sputter coating can be performed with one rotary atomizing coating machine.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a two-color sputter coating according to the present invention will be described below with reference to FIG.

In FIG. 1, reference numeral 1 denotes an atomizing head main body having an inner peripheral surface and an outer peripheral surface which are generally tapered from an upper end to a lower end, and has a substantially double cylindrical shape on the inner peripheral surface. An attachment having a bottom between the inner cylinder 3 and the outer cylinder 4 and having a number of paint through holes 6 formed on the outer periphery of the bottom surface 5 is fitted.

An output shaft 12 of an air motor (not shown) is fitted in the inner cylinder 3, and is provided for each color used at the eccentric position of the opening on the upper surface of the atomizing head body so as not to interfere with the output shaft. Two paint supply pipes a7 and b8
Is facing.

The lower surface of the mounting body 2 has a cross section for regulating the outflow of the paint between the outlet surface of the paint through hole 6 and the inner peripheral surface thereof.
A flange 10 forming a substantially inverted L-shaped slit 9 around the entire circumference is fixed.
Together with the output shaft 12.

In this embodiment, two kinds of paints are simultaneously supplied from the paint supply pipe a7 and the paint supply pipe b8 to the rotary atomization head having the above-described structure, and the paint inside the atomization head body 1 is provided. By selecting the number of revolutions of the atomizing head so that the flow of water becomes laminar, the two types of paint are rotated and atomized without mixing, and multi-color sputter coating is performed with one rotary atomizing coating machine. be able to.

Further, by making the type and viscosity of the paint different, stable multicolor sputter coating can be performed.

[0013]

According to the present invention, multi-color sputter coating can be performed with a single rotary atomizing coating machine, and the problems can be improved in terms of equipment space and management of cleaning of coating equipment.

Further, since the colors can be randomly overlapped, sputter coating with improved design can be realized.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of one embodiment of the present invention.

[Explanation of symbols]

1: atomization head body, 2: mounting body, 3: inner cylinder, 4: outer cylinder,
5: bottom surface, 6: paint supply hole, 7: paint supply tube a, 8: paint supply tube b, 9: slit, 10: flange, 11: countersunk screw, 12: output shaft

Claims (1)

[Claims] 1. In a rotary atomization coating, a coating apparatus for supplying multicolor sputter coating by supplying paint to a bell cup with feed tubes of the number of colors and maintaining a flow of the paint in the bell cup in a laminar flow area.