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KR-20260062712-A - Method for manufacturing a three-dimensional pattern and a three-dimensional pattern manufactured by the method

KR20260062712AKR 20260062712 AKR20260062712 AKR 20260062712AKR-20260062712-A

Abstract

The present invention relates to a method for manufacturing a three-dimensional pattern and a three-dimensional pattern cut by the same method, comprising: a) a step of manufacturing a sheet for forming a three-dimensional pattern by adhering a polymer hard plate to the upper surface of a polymer foam sheet; b) a step of arranging the sheet for forming a three-dimensional pattern such that the polymer hard plate of the sheet for forming a three-dimensional pattern is positioned in the direction of laser beam irradiation of a laser cutting device; and c) a step of cutting the three-dimensional pattern by irradiating a laser beam from the laser cutting device onto the sheet for forming a three-dimensional pattern.

Inventors

  • 최영철

Assignees

  • 최영철

Dates

Publication Date
20260507
Application Date
20241029

Claims (11)

  1. a) a step of manufacturing a sheet for forming a three-dimensional pattern by adhering a polymer hard plate to the upper surface of a polymer foam sheet; b) a step of arranging a sheet for forming a three-dimensional pattern such that the polymer hard plate of the sheet for forming a three-dimensional pattern is positioned in the direction of laser beam irradiation of the laser cutting device; and c) a step of cutting the three-dimensional pattern by irradiating a laser beam from the laser cutting device onto the sheet for forming the three-dimensional pattern; a method for manufacturing a three-dimensional pattern.
  2. In paragraph 1, A method for manufacturing a three-dimensional pattern, characterized in that the thickness of the polymer foam sheet in the above-described three-dimensional pattern forming sheet is 2 to 100 times the thickness of the polymer hard plate.
  3. In paragraph 1, A method for manufacturing a three-dimensional pattern characterized in that the polymer foam sheet is a plastic foam sheet or a rubber foam sheet.
  4. In paragraph 1, A method for manufacturing a three-dimensional pattern, characterized in that the above-mentioned polymer foam sheet is a sheet manufactured by foaming one or more selected from polyurethane, polystyrene, polyolefin, phenolic resin, polyvinyl chloride, urea resin, silicone, polyimide, and melamine resin.
  5. In paragraph 1, A method for manufacturing a three-dimensional pattern, characterized in that the polymer hard plate has a Rockwell hardness of 50 to 200.
  6. In paragraph 5, The above polymer hard plate is A method for manufacturing a three-dimensional pattern, characterized by a plate made of one or more polymer materials selected from the group consisting of polycarbonate, acrylic, polyethylene, polyethylene terephthalate, polystyrene, polypropylene, polyetherimide, styrene-acrylonitrile, epoxy, and cyclo-erlefin copolymer.
  7. In paragraph 1, A method for manufacturing a three-dimensional pattern characterized in that the above-mentioned three-dimensional pattern is a three-dimensional letter for advertising.
  8. A three-dimensional pattern manufactured by the method of claim 1, A three-dimensional pattern characterized in that the cross-section of the above-described three-dimensional pattern is formed such that the cross-section of the polymer hard plate protrudes outward by 0.2 mm to 10 mm further from the cross-section of the polymer foam sheet, thereby forming a step difference.
  9. In paragraph 8, The above step is a three-dimensional pattern characterized by being formed when the polymer foam sheet melts more than the polymer hard plate during laser cutting.
  10. In Paragraph 9, A three-dimensional pattern characterized by the polymer foam sheet layer of the above-described three-dimensional pattern including a uniform surface formed by melting by a laser.
  11. In Paragraph 10, The above three-dimensional pattern is characterized as being a three-dimensional letter for advertising.

Description

Method for manufacturing a three-dimensional pattern and a three-dimensional pattern manufactured by the method The present invention relates to a method for manufacturing a three-dimensional pattern that can be used for advertising signs, etc., and a three-dimensional pattern manufactured by this method. Signboards are installed on buildings and used to advertise business names and products to consumers. To this end, signboards are manufactured in a form that is easily recognizable by consumers (a form with excellent visibility). As mentioned above, three-dimensional patterns formed by shaping characters or figures into three dimensions are commonly used to improve visibility. Such three-dimensional patterns are frequently manufactured using materials such as acrylic, for example. Recently, there has been a significant increase in the use of thick three-dimensional patterns to enhance visibility. However, meeting these thickness requirements with high-hardness materials such as acrylic requires a long processing time, which reduces work efficiency. Furthermore, the weight and the amount of acrylic material required increase significantly, leading to a substantial rise in manufacturing costs. Therefore, in order to resolve these problems, attempts are being made to manufacture three-dimensional patterns using low-density polymer foams. CNC engraving machines are generally used for cutting such polymer foams. However, when polymer foams are cut into three-dimensional patterns using CNC engraving machines as described above, not only is the work difficult because the cut debris flies off, but the cut surface is rough, requiring repair work after cutting, precise processing of the edges is difficult, and the color of the cut surface changes, requiring additional painting (see Fig. 4(a) and Fig. 6). Therefore, the method of forming three-dimensional patterns from polymer foams using CNC engraving machines is known to significantly reduce work efficiency. Meanwhile, to resolve the above-mentioned problem, a method of cutting the polymer foam with a laser can be considered. However, when laser cutting the polymer foam, as shown in Fig. 7, the part of the polymer foam where the laser beam first reaches continuously absorbs heat until the cutting is completed and melts significantly more than the part below the cut section, making it difficult to cut the polymer foam into a desired shape. In addition, even if it is possible to cut a polymer foam into a three-dimensional pattern by spending a lot of time and money, the appearance of the cut polymer foam three-dimensional pattern lacks a sense of luxury and visibility, so a transparent polymer plate such as acrylic must be cut and attached to the front. Therefore, this process requires a lot of time and money. Therefore, the development of technology capable of resolving these problems is required. FIG. 1 is a photograph of a sheet for forming a three-dimensional pattern according to the present invention, and FIGS. 2 and FIGS. 3 are photographs of the three-dimensional pattern of the present invention, FIG. 4 is a photograph of a three-dimensional pattern (a) cut by a CNC engraving machine and a three-dimensional pattern (b) cut by a laser, and FIG. 5 is a photograph of an advertising board using the three-dimensional pattern of the present invention, Figure 6 is a photograph showing the cut surface (A) of a polymer foam sheet cut by a CNC engraving machine and the cut surface (B) of a polymer foam sheet cut by a laser. Figure 7 is a photograph of the shape of a pattern manufactured by cutting a polymer foam sheet with a laser. The present invention will be described in detail below with reference to the drawings. The method for manufacturing the three-dimensional pattern (50) of the present invention is a) a step of manufacturing a sheet (100) for forming a three-dimensional pattern as shown in FIG. 1 by adhering a polymer hard plate (20) to the upper part of a polymer foam sheet (10); b) a step of arranging the three-dimensional pattern forming sheet (100) such that the polymer hard plate (20) of the three-dimensional pattern forming sheet (100) is positioned in the direction of laser beam irradiation of the laser cutting device; and c) a step of cutting the three-dimensional pattern (50) by irradiating a laser beam from the laser cutting device onto the sheet (100) for forming the three-dimensional pattern; characterized by including According to the method for manufacturing a three-dimensional pattern of the present invention, a polymer hard plate (20) is adhered to the upper part of a polymer foam sheet (10) to manufacture a sheet (100) for forming a three-dimensional pattern as shown in FIG. 1, and by a simple process of cutting the sheet with a laser, a three-dimensional pattern (50) with excellent visibility and a premium feel, as shown in FIG. 2, can be efficiently manufactured. in other words, (I) The front surface of the three-dimensional pattern is made