JPS5854680B2 - Manufacturing method of original plate for engraving - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for blowing ultra-hard particles such as diamond sand onto an object to be carved made of a hard material such as stone. The present invention relates to a method for manufacturing an original plate for engraving, which is used by pasting parts such as the above in a punched state.

Conventionally, an object to be carved made of a hard material such as stone has been engraved in the following order.

■ Prepare a synthetic rubber plate of about 1 to 31 HI.

An adhesive coated with paraffin paper is applied to the back side of this synthetic rubber plate.

■ A synthetic rubber plate is cut to match the size of the surface to be engraved of the object to be engraved, and predetermined characters, figures, patterns, etc. are drawn on it.

■ This synthetic rubber plate is pasted on the surface to be engraved, and letters, figures, etc.
Cut out the pattern etc. with a knife or the like and use it as a master plate for engraving.

At this time, since the surface to be carved is hard (especially in the case of stone), the cutting edge may become chipped or worn, and the cutting tool must be replaced with a new one.
Or it had to be re-sharpened.

This, coupled with the fact that the work was done on-site, increased the number of man-hours and cost.

■ Carving is carried out by blowing ultra-hard particles such as diamond sand onto the surface to be carved at high speed, and the process is completed by removing the synthetic rubber plate.

Note that after cutting out parts such as characters, figures, patterns, etc. from the synthetic rubber plate, it is not possible to adhere the synthetic rubber plate to the surface to be engraved.

This is because when a synthetic rubber plate is attached to a surface to be engraved, letters, figures, patterns, etc. may be deformed due to waving or stretching, and discontinuous portions may fall off.

In view of the above, the present invention provides an engraving tool that can significantly reduce the number of man-hours and costs when engraving an object made of a hard material, and that can accurately reproduce and engrave characters, figures, patterns, etc. The purpose is to provide a method for manufacturing original plates.

The gist of this invention is that on the back side of the cover film, portions such as letters, figures, patterns, etc. are removed uncured by a photolithography process, and the other portions are photocured and remain after being cured with ultraviolet light. A method for producing an engraving original plate forming a synthetic resin layer includes: adhering the engraving original plate to the engraving surface of an engraving object made of a hard material, removing the cover film,
Engrave by spraying ultra-hard particles onto the surface to be engraved at high speed.

Hereinafter, one embodiment of the present invention will be described based on illustrated examples.

The method for producing the original plate for engraving according to the present invention by photolithography is as follows.

■ Place cover film 1 of the size of the surface to be engraved upside down.

The cover film 1 is made of vinyl chloride resin or the like (first
figure).

■ On top of this cover film 1, pour a liquid resin that cures with ultraviolet rays, such as APR resin (registered trademark, manufactured by Asahi Kasei Industries, Ltd.), and use a roller or the like to spread it to a certain thickness (0.5 to 3
mm) to form a photocurable synthetic resin layer (hereinafter referred to as synthetic resin layer) 2 (FIG. 2).

■ On the surface of this synthetic resin layer 20, the original film 3 is placed upside down, with parts such as letters, figures, patterns, etc. not allowing light to pass through, and other parts allowing light to pass through, and the film is irradiated with an ultraviolet lamp 4. (Fig. 3) ■ Ultraviolet lamp 4 for a specified period of time
When the synthetic resin layer 20 is irradiated with light, the parts 2a of the synthetic resin layer 20, such as characters, figures, patterns, etc., are not cured because they are not exposed to light, but the other parts 2b are exposed to light and are cured (Figure 4).

Note that the cover film 1 is not affected in any way by this irradiation.

. ■ When tap water is applied to this synthetic resin layer 2, the uncured parts 2a of the synthetic resin layer 2, such as letters, figures, patterns, etc.
is removed and the hole 7 becomes clear, but the other part 2b remains.

In this way, an engraving original 5 is formed on the back surface of the cover film 1, in which a synthetic resin layer 2 with holes 7 formed in the portions of characters, figures, and patterns is formed (FIG. 5).

Next, a method of engraving the engraving surface of an object to be engraved using this engraving original plate 5 will be explained.

■ Apply adhesive to the surface of the synthetic resin layer 20 of the engraving original plate 5 using a roller or the like, and attach it to the engraving surface 6a of the engraving object 6 (
Figure 6).

■ When the cover film 1 is peeled off and ultra-hard particles such as diamond sand are sprayed at high pressure onto the surface 6a to be engraved, letters, figures, etc.
Since the hole T is open in the pattern etc. part, it is cut and engraved.

(2) The synthetic resin layer 2 is removed from the engraving surface 6a, and the engraving surface 6 is cleaned (FIG. 8).

Since the method for producing an original plate for engraving according to the present invention is the method described above, it has the following effects.

(7) The master plate for engraving produced in this way is pasted onto the surface of the object to be engraved, and then the original plate for engraving is applied to the surface of the object to be engraved.
Since there is no need to cut out the pattern etc. with a knife etc., both the number of man-hours and costs can be significantly reduced.

(b) Since the original plate for engraving is manufactured using photolithography, any number of plates can be formed accurately.
It is possible to accurately reproduce and engrave figures, patterns, etc.

This is particularly effective when it is necessary to engrave the same text or pattern over and over again, such as on monuments or family crests.

[Brief explanation of drawings]

Figures 1 to 5 are schematic cross-sectional views showing a method for manufacturing an original plate for engraving according to the present invention, and Figures 6 to 8 are schematic cross-sectional views showing a method for engraving using the original plate for engraving manufactured by the method of the present invention. . 1... Cover film, 2... (photocurable) synthetic resin layer, 2a... Parts such as letters, figures, patterns, etc., 2b... Others Section, 5...Original plate for engraving, 6...Carving/body, 6a...
Surface to be carved, 7....holes.

Claims (1)

[Claims] 1. When engraving an object made of a hard material by blowing ultra-hard particles at high speed, characters, figures, patterns, etc. may be stuck to the surface of the object in the unpunched state. In the manufacturing method of the original plate for engraving used in the manufacturing process, the back side of the cover film is made by photolithography where parts such as letters, figures, patterns, etc. are removed uncured and have holes, and other parts are hardened with ultraviolet rays. A method for producing an original plate for engraving, characterized by forming a remaining photocurable synthetic resin layer.