JPS608071A - Production unit for panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention involves forming a thin metal plate into a predetermined shape, and adding a natural and three-dimensional feel to the decorative surface by applying a printed pattern or an embossed pattern to at least the surface that will become the decorative surface. The present invention also relates to a manufacturing device that can produce panels with enhanced design and weather resistance.

Many panels made of metal sheets are used as interior and exterior wall materials for buildings. However, this type of panel was only commercially available as a flat panel or simply embossed.

As a result, this type of panel lacked three-dimensionality, design, and weather resistance, and was only able to produce panels with a flat, cold decorative surface. Furthermore, in embossing, there is a disadvantage in that the coating film on the decorative surface, etc., is subject to cranking, distortion, etc., and the panel itself may be twisted or warped.

In order to eliminate the above-mentioned drawbacks and meet the above-mentioned demands, the present invention processes a board material into an arbitrary uneven pattern, then draws an arbitrary pattern on the decorative surface of the board material with ink mixed with a substance that foams when exposed to light, and then to foam the foamable substance in the ink, and then apply a decorative coating film, for example, clear, to this decorative surface to prevent cracks in the coating film and prevent changes in the printed pattern, and an apparatus for manufacturing a panel which can be given sufficient three-dimensionality, design, and naturalness by the embossed shading on the decorative surface, the shading drawn in the printed pattern, and the projections of the foamed ink. This is what we propose.

An embodiment of the panel manufacturing apparatus according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic diagram of the above-mentioned device. The upper part shows the panel material delivery section, which shows an uncoiler 2 with a brake and a pinch roller 3 on which a thin metal sheet A (hereinafter simply referred to as sheet material A), which is a panel material, is attached. It has a pattern of male and female irregularities that engage with each other on the plate material A, and is configured to be supported so that it can be pressurized depending on the thickness of the plate material A, the depth of the irregularities, etc. be.

1 is a printing section consisting of a backup roller 8 and a coating roller 9, and 1 is applied to the decorative surface of the plate material A, here the entire surface.
An arbitrary pattern is printed using ink B containing a color or multicolor substance that foams when exposed to light by any one of gravure printing, offset printing, screen printing, letterpress printing, and planographic printing. Note that printing may be performed on the entire decorative surface or only on the convex surface.

As the substance that foams when exposed to light, azo compounds such as benzenediazonium chloride, 2-nocyano-2-propylazoflumamide, 2,2-azobisisobutyronitrile, and 1-1-7zobis are used. Above ■ is a light source 1 that foams the above substance using a floodlight.
1 and a conveyor conhair 12, which foams the substance in the ink B during short-term conveyance.
The seeds or more are arranged arbitrarily, and the foaming scale and shape can be selected. Reference numeral 13 is a device for applying transparent paint or color paint (hereinafter simply referred to as clear) C to the decorative surface when the ink B on the decorative surface is not dry in the painting section, such as a roll coater, curtain flow, etc. It consists of one of coater, spray, etc. The upper + is the heating section, which consists of a roller 15 and a heater 16.
This is for drying ink B and clear C and transporting plate material A to the next process, and the heating temperature is 30-11
The range is up to about 0°C. 17 is a molding machine, for example 10
It has a number of stages, such as 20 stages, 32 stages, etc., and is for forming the plate material A into a substantially gutter shape. Further, the mechanism allows molding width to be either single width or double width. In addition, since the forming machine 17 sequentially forms the plate material A into a gutter shape along the flower diagram from the inlet to the outlet, distortion and deformation during embossing are avoided along the width direction of the plate material A and the transport direction. This allows the residual distortion and deformation to be minimized. Reference numeral 18 denotes a cutting machine that is installed as necessary, and is either a flying cutter, a rotary type, a press type, or the like. 19 is a conveyor.

Next, the operation of the panel manufacturing apparatus according to the present invention will be explained. Now, a 0.27 m thick primer steel plate (width 100100O wound around a 1000 m bobbin) was attached to the uncoiler 2 as a plate material.

In addition, the type of ink B is water-based acrylic varnish (
(solid content: 40%), an organic pigment, and 1-1-azo, and these are printed on a decorative surface using a gravure printing method. In addition, a polyurethane resin was prepared as clear C, and the temperature of the heating section 1 soil was set at 60°C. Therefore, the second
Assume that a panel D is manufactured having a cross section as shown in the figure and shaped as shown in FIG. First, the starting end of the plate material A is guided to the pinch roller 3, and then fed to the embossing machine ↓. The embossing machine ↓ applies a concavo-convex pattern to the entire width of the plate material A, for example as shown in Fig. 4 (Ta).

45. Apply ink B to the decorative surface of the garment by printing unit 1.
Print by gravure printing machine as shown in fbl.

In addition, in figure (b), only the substance that foams due to light is drawn.
Others are omitted. Next, feed the plate material A to the projector "1",
As shown in FIG. 4 tc+, the foamable substance is foamed by light. Next, as shown in Figure 4 (dl), clear C is applied to the decorative surface of the board from the coating section 13, and the heating section-1
4- to dry and harden Clear C. Next, the plate material A formed into the cross section as shown in FIG. Panel D was obtained by cutting.

Therefore, the decorative surface of panel D manufactured in this way was subjected to a salt spray test I-(J I 5-Z-2371, 1).
0001(r), no rust was observed at all. As a comparative example, when we conducted the same test on the decorative surface of a plate material without Clear C, cracks were observed in the finished coating film in some areas during embossing, and cracks were observed in even more areas after molding. The salt spray test had poor characteristics as a result of deeper cranking. Furthermore, in the comparative example, the printed pattern on the decorative surface was directly exposed during embossing and molding, resulting in a lack of aesthetic appearance, but this did not occur in the example. In addition, in the example,
The three-dimensional appearance of Panel D was greatly enhanced by the three effects of shading due to the color of printing, foamed protrusions of Ink B, and embossing.

What has been described above is only one embodiment of the apparatus according to the present invention, and as shown by the dashed line in FIG. 21, it is also possible to construct a device that removes distortion caused by embossing and feeds the product to the next process. Furthermore, although not shown, a foam raw material supply machine and a foam molding machine may be arranged in series after the molding machine 17.

As described above, according to the panel manufacturing apparatus according to the present invention,
■A commercially available board material is given an arbitrary uneven pattern, and then an arbitrary pattern is printed on the surface of this uneven pattern with ink, and then a clear coat is applied and dried, so there is no change in the pattern after printing. There are some features that don't exist. ■Because the embossed decorative surface is coated with clear and then molded, even if cracks occur in the sheet metal or the embossed process, they will not be exposed to the outside air and will not rust. Furthermore, the decorative surface has a synergistic effect on the three-dimensional pattern of the embossing, the shading of the printing itself, and the protrusions of the ink, making it possible to manufacture panels at high speed with greatly enhanced three-dimensionality.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing an embodiment of the panel manufacturing apparatus according to the present invention, FIG. 2 is an enlarged end view of the panel, and FIG. 3 is a perspective view showing an example of the panel manufactured by the above-mentioned apparatus according to the present invention. 4 fa) to Tdl are explanatory diagrams showing the manufacturing process of the panel. Top...Plate material feeding section for panels, (...embossing machine, 1...printing section, ■...projector, 17...
·Molding machine. 363- Figure 2 Rod Figure 3 Figure Δ Figure IQ)

Claims (1)

[Claims] (1) A panel material delivery section consisting of an uncoiler and a pinch roller, and an upper and lower roll having a concave-convex pattern on its outer circumferential surface to emboss a predetermined area of the panel material that is continuously fed from the delivery section. a printing unit that prints an arbitrary pattern on the decorative surface of an embossed plate using ink mixed with a substance that foams when exposed to light, a floodlight that irradiates light onto the printed decorative surface, and the decorative surface. A painting part that applies paint to the entire surface, ink applied to the decorative surface,
A panel manufacturing device characterized by linearly arranging a heating section for drying transparent paint and a forming machine for continuously forming panel board materials continuously fed from the heating section into a substantially gutter shape. .