JPH0245964B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a coating roll, and more particularly to a method for producing a coating roll, and more specifically, a method for producing a coating roll, and more specifically, a method for producing a coating roll, and more specifically, a method for producing a coating roll, and more particularly, a method for producing a coating roll, and more particularly, a method for producing a coating roll, and more particularly, a method for producing a coating roll, and more particularly, a method for producing a coating roll, and more particularly, a method for producing a coating roll, and more particularly, a method for producing a coating roll, and more particularly, a method for producing a coating roll, and more particularly, a method for producing a coating roll, and more specifically, a method for producing a coating roll. The present invention relates to a method of manufacturing a forming roll.

When decorating the surface of a building material with a coating material, after applying the coating material, while the coating material retains its fluidity, a roll-shaped or flat plate-shaped three-dimensional pattern forming tool is pressed onto the surface of the coating material, and then The method of finishing the surface of the coating material in an undulating three-dimensional pattern by separating the coating materials is described in Japanese Patent Publication No. 54-8384 "Painting Roll" and Japanese Patent Publication No. 54-17774 "Three-dimensional pattern forming tool on the surface of coating material and its use". It is already widely known for its method of forming three-dimensional patterns on the surface of painted materials using
Roll-shaped pattern forming tools can pattern over a large area by rolling the rolls, and are advantageous over flat-shaped ones in that there is no limit to the size of building materials. It is described in the publication No. 118767 "3D patterned hand roller" etc. The present invention is directed to a method for quickly and inexpensively manufacturing a roll-shaped pattern forming tool with good pattern development properties.

The above-mentioned gazette provides examples of various surface designs for painted materials, but the surface design of building materials must match the individual tastes of consumers, and there are many types of surface designs that are designed one after another based on the trends of the times. There is an increasing demand for the development of new designs. Therefore, the rolls used to form three-dimensional patterns must be sophisticated enough to produce a wide variety of patterns, even minute parts and smooth curves, and must also be able to be manufactured quickly and inexpensively. be. In this respect, conventional methods for manufacturing pattern-forming rolls have had several drawbacks. Therefore, a conventional roll manufacturing method will be described with reference to the accompanying drawings.

First, a prototype design roll 10 as shown in FIG. 1 is made of a material such as wood, plaster, clay, plastic, metal, etc., and a roll core 11 is inserted into the center.
The uneven pattern on the roll surface is formed by hand engraving or photo etching.

Next, as shown in FIG. 2, the prototype roll 10 is fixed in a mold 12 made of a wooden frame or a metal frame, and epoxy resin, rubber, or molten metal 13 is poured into the space between the roll and the mold and solidified. Finally, make two concave (female) molds 14a and 14b (Fig. 3).

Next, as shown in Figures 3 and 4, the prototype roll 1 is
0 is removed, the concave molds 14a and 14b are combined again, and then the roll core 11 is inserted into the center, and uncured liquid rubber or resin 15 is filled into the space around the roll core.
Pour and solidify. After that, by removing the concave mold, a pattern forming roll 16 for painting on which a desired design can be transferred is completed. (Figure 5).

Problems with the method of manufacturing a pattern-forming roll in the prior art include the following. 1st
Since the design roll 10 has to be engraved or etched on its cylindrical surface,
The material is preferably hard steel or wood, and the manufacturing process requires a lot of time and cost. On the other hand, since the surface of the base material of building materials is not necessarily flat, using a hard pattern-forming roll tends to cause uneven crimping, and excessive crimping may damage the base material. must be made of flexible material. Thus, the man-hours required to make two rolls become essential.

Second, the uneven pattern on the surface of the roll is transferred to the surface of the building material with the unevenness reversed, so you must draw a negative image of the pattern you want to appear on the surface of the building material on the design roll, with the pattern reversed. It must not happen. Especially when carving by hand, it is difficult to create minute patterns and it is not easy to draw natural curves. The etching method requires many steps and inevitably increases costs. Since the positions of the recesses on the design roll form the pattern, it is not possible to use a method of attaching a coating material to the cylindrical roll to create the pattern, which is a simpler method than engraving or etching. Since negative images are drawn directly on the cylindrical roll, there are naturally restrictions on the pattern, making it difficult to create free designs.

It is an object of the present invention to provide a method for manufacturing a convex portion forming roll that can eliminate the problems of the conventional method for manufacturing a pattern forming roll, and that can precisely reproduce a wide variety of patterns and can be manufactured quickly and inexpensively. It is in.

The above-mentioned object of the present invention is to form an arbitrary convex pattern on the surface of a flexible magnetic sheet to be reproduced on the surface of a coating material, and to incorporate the convex pattern as an inner surface into a cylindrical form made of magnetic material. step, injecting solvent-resistant liquid plastic into the cylindrical form, solidifying it and forming it into a roll, and removing the cylindrical form to take out the formed roll. This is achieved by a method for manufacturing a roll for forming convex portions.

That is, in the present invention, a desired convex pattern is formed on the surface of a flexible magnetic sheet (flat) without creating a cylindrical design roll. For this convex pattern, it is sufficient to make a positive image that is identical to the pattern to be reproduced on the surface of the painted material, and there is no need to create a reversed negative image. When this magnetic sheet is assembled into a cylindrical frame made of a magnetic material with its convex pattern on the inner surface, the sheet adheres tightly to the cylindrical wall surface due to the action of the magnet, forming a cylindrical space inside.
By injecting a solvent-resistant liquid plastic into this space and solidifying it, a flexible protrusion-forming roll is formed.

The cylindrical form made of magnetic material may be made of a magnetic material that can be magnetized by a magnetic field, such as iron, zinc, nickel, copper, silver, etc.
Gold and their compounds and alloys are used.
In terms of dimensions, from the viewpoint of ensuring accuracy during roll forming,
The thickness of the frame is selected depending on the material so that it becomes a rigid body, and the diameter and length can be arbitrarily selected depending on the size of the roll.

The convex pattern formed on the magnetic sheet is created using paint, paraffin, wax, etc. on a flat sheet material.
By attaching fibers, aggregates, etc., sophisticated objects can be formed quickly and inexpensively.

As the solvent-resistant liquid plastic, silicone rubber or polyester resin is preferred.

The present invention will be described in more detail below with reference to the embodiments shown in the accompanying drawings, FIGS. 6 to 9. First, as shown in FIG. 6, a magnetic sheet 22 consisting of a front surface 20 forming a pattern and a back surface 21 mixed with magnetic powder is made into a rectangular shape of a predetermined size. The thickness of the magnetic sheet 22 is approximately 1 mm to 5 mm, and a material is selected that is flexible, does not wrinkle when rolled into a cylindrical shape, and is self-supporting due to the force of the magnet. The material of the sheet is, for example, vinyl chloride.

For example, apply ricin paint to the surface side of the sheet 22.
Convex patterns 23 and 24 are formed by spraying at a rate of 400 g/m ² and then dried. This pattern should be the same as the pattern reproduced on the surface of the painted material.

Next, as shown in Figure 7, the inner diameter is, for example, 100 mm.
The magnetic sheet 22 is closely attached to the inner surface of the steel cylindrical split molds 25a and 25b so that the convex patterns 23 and 24 are on the inner surface that contacts the liquid plastic. At this time, the sheet 22 is brought into close contact with the cylindrical inner surfaces of the split molds 25a and 25b due to the action of the magnet powder 21. Measure the dimensions so that there are no gaps between the edges of the sheets.

Next, as shown in FIG. 8, a roll core 11 is inserted into the center, and a solvent-resistant liquid plastic 26 made of silicone rubber or polyester resin is poured into the space around the roll core and solidified. Thereafter, by removing the split molds 25a and 25b, the convex portion forming roll 30 according to the present invention is completed. If this roll 30 is pressed against the surface of an uncured coating material and rolled, the convex patterns 23 and 24 shown in FIG. 6 will be reproduced on the surface of the building material.

As explained in detail above, according to the present invention, a cylindrical design roll as a prototype is not required, which greatly reduces man-hours and costs, and allows a desired pattern to be formed directly on the surface of a flat sheet. Therefore, it is possible to realize elaborate patterns including fine shapes and natural curves, and the roll for forming the convex portions can be manufactured quickly and inexpensively, and its effects are extremely remarkable.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a design roll according to the prior art, Fig. 2 is a perspective view of the process of making a concave mold, Fig. 3 is a perspective view of the concave mold divided into parts, and Fig. 4 is a perspective view of the process of making a pattern forming roll. 5 is a perspective view of a pattern forming roll, FIG. 6 is a perspective view of a magnetic sheet according to the present invention, FIG. 7 is a perspective view of the magnetic sheet assembled in a cylindrical form, and FIG. 8 is a perspective view of a pattern forming roll. 9 is a perspective view of the process of making a roll for forming a convex portion, and FIG. 9 is a perspective view of the roll for forming a convex portion. 22... Magnetic sheet, 23, 24... Convex pattern, 25a, 25b... Cylindrical formwork, 26...
Liquid plastic, 30... Roll for forming convex portions.

Claims (1)

[Scope of Claims] 1. A step of forming an arbitrary convex pattern to be reproduced on the surface of a coating material on the surface of a flexible magnetic sheet, and a step of incorporating the convex pattern into a cylindrical form made of magnetic material as an inner surface. , a step of injecting a solvent-resistant liquid plastic into the cylindrical form and solidifying it to form it into a roll; a step of removing the cylindrical form and taking out the formed roll. A method for manufacturing a roll for forming convex portions. 2. Claim 1, in which paint, paraffin, wax, fiber, aggregate, etc. are adhered to the flat magnetic sheet in the convex pattern forming step.
Manufacturing method described in section. 3. The manufacturing method according to claim 1 or 2, wherein silicone rubber or polyester resin is injected in the liquid plastic injection step.