JPH01231959A - Coater - Google Patents

Abstract

PURPOSE:To exactly transfer paint to the rugged pattern formed by embossing by accumulating the information on the pattern onto a light receiving drum by light, then by inputting this information to computer feeding prescribed data to a discharge nozzle to coat the paint on a transfer roll. CONSTITUTION:An embossing roll 1 forms the rugged pattern on the surface of a sheet material A having a smooth surface. The rugged pattern surface of the sheet material A is then irradiated by the light from a light emitting device 2 and the reflected light thereof is received by the light receiving drum 4 via a lens 3. The computer 5 in succession thereto converts the data of the drum 4 to three-dimensional data and stores the same. The nozzle 6 coats the paint to the prescribed position of the transfer roll 7 in accordance with the data of the computer 5. The transfer roll 7 transfers the paint or ink, etc., coated from the nozzle 6 to the prescribed position of the rugged pattern which is subjected to the above-mentioned embossing. Further, a heater 10 dries the transferred and embossed decorative surface. The coated film which is dried is baked in a baking furnace 11. As a result, the painting without deviation from the rugged pattern is enabled.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is a method of applying an uneven pattern to the decorative surface of a plate material having a smooth surface, and forming a printing film, a coating film, etc. for shading at appropriate positions on this uneven patterned surface. The present invention relates to a coating device useful for

[Conventional technology]

Conventionally, when printing for shading or attaching a coating film to an arbitrary part of an uneven pattern provided on the decorative surface of a thin metal plate or synthetic resin plate, the method used was to transfer paint, ink, etc. to a predetermined position using a transfer roll. Ta.

[Problem to be solved by the invention]

However, in order to apply shading to a decorative board using this type of device, the transfer roll cannot handle the deformation and distortion of the board material that occurs during embossing, and since the board material expands and contracts, a transfer roller with the same uneven pattern as the embossing roll is required. Even with coating and printing, they did not match (there was a drawback that the appearance was not beautiful).

[Means to solve the problem]

In order to eliminate such drawbacks, the present invention catches the deformation of the uneven pattern formed by embossing, stores this catch information on a light receiving drum using light or laser, and inputs the information on this light receiving drum into a computer. , and after detecting the uneven pattern again just before the transfer roll, the paint is transferred to the transfer roll by sending predetermined data to the discharge nozzle, and then dried and baked to produce a decorative material. , we propose a coating device that can accurately transfer paint to arbitrary parts of an uneven pattern without any deviation, and can form sharp shadows.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The coating apparatus according to the present invention will be explained in detail below using the drawings. FIG. 1 is an explanatory diagram showing the outline of the above-mentioned coating apparatus, in which 1 is an embossing roll, 2 is a light emitter, 3 is a lens, 4 is a light receiving drum, 5 is a computer, 6 is a nozzle,
7 is a transfer roll, 8 is a check roll, 9 is a feeder for paint, ink, etc., 10 is a heater (drying oven), 11 is a baking oven, and 12 is a row. To explain further, the embossing roll 1 has male and female uneven patterns formed on the outer peripheral surface of a roll having the same diameter, and the light emitter 2 emits light from a light source onto the uneven patterned surface of the plate material A as shown in FIG. The reflected light is received by the light receiving drum 4 through a lens (camera).

This light-receiving drum 4 is input to the computer 5 as image data corresponding to each position. The uneven pattern B1C of the plate material A and the wavy state due to distortion and elongation are three-dimensionally analyzed and input as height data to the computer 5. In addition, data on the uneven patterns B and C from the check roll 8 and the transfer roll 7 are manually input to the computer 5, and based on these data, paint or ink is applied to a predetermined position on the transfer roll 7 as shown in FIG. It is injected through a nozzle 6 as shown in FIG. Further, the heater 10 is used to dry paint, ink, etc. in a short time, and uses, for example, hot air, far infrared rays,
Hot air, electric heaters, etc. 11 is a baking furnace for baking paint, ink, etc.;

Next, the operation of the coating apparatus according to the present invention will be explained. Now, uneven patterns B and C as shown in FIG. 2 are formed on a 0.271 m color steel plate as plate material A using an embossing roll 1. Next, the decorative surface of the board is irradiated with light, and the data of each part of the uneven patterns B and C is three-dimensionally analyzed using a lens or an image sensor, and is input to the light-receiving drum 4. The input data is transferred to the computer 5. The pattern data of the transfer roll 7 and the data from the check roll 8 are manually input to the computer 5, and paint or ink is sprayed onto the transfer roll 7 from the nozzle 6, and as the transfer roll 7 rotates, the paint is applied to a predetermined position on the plate material A. Transfer the image. These steps are shown in FIGS. 4(a) to fc).

Next, the plate material A is fed to the heater 10 and then to the baking furnace 11 to bake the coating film. Next, if necessary, the molding machine 13
The material is fed to a mold and molded into a predetermined shape.

What has been described above is only one embodiment of the coating apparatus according to the present invention, and as shown in FIG. 5, it is also possible to adopt a structure in which ink D' is transferred and then paint is applied.

〔Effect of the invention〕

As described above, according to the coating apparatus of the present invention, it is possible to easily analyze the uneven pattern formed on the plate material, convert it into three-dimensional data, and add shading etc. to appropriate positions of the uneven pattern. There is no deviation from the pattern (it has the characteristic of being able to be painted beautifully).

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an embodiment of the coating apparatus according to the present invention, FIG. 2 is a plan view showing an example of an uneven pattern, FIG. 3 is a perspective view showing an example of a nozzle, and FIG. (C1 is an explanatory diagram showing the painting process, and FIG. 5 is an explanatory diagram showing other embodiments. 1... Embossing roll, 5... Computer, 6...
...Nozzle, 7...Transfer roll, A...Plate material, B,
C: uneven pattern, D: paint or ink, etc. Figure 1 Figure 2 Figure 3 Figure 4 Figure 8 (Lnζ t's)

Claims (1)

[Claims] (1) An embossing roll that creates an uneven pattern on the surface of a smooth board material, an embossing roll that collects light and laser beams to detect the pattern on the embossed decorative surface, a corresponding light-receiving drum, and a third-dimensional data on the light-receiving drum. A computer that converts and stores original data; a nozzle that applies paint to a predetermined position on the transfer roll based on the data of the computer; and a nozzle that transfers the paint, ink, etc. applied from the nozzle to the predetermined position of the embossed uneven pattern. What is claimed is: 1. A coating device comprising: a transfer roll for drying the embossed decorative surface; a heater for drying the transferred embossed decorative surface; and a baking oven for baking the dried coating film.