JP2005097020A - Forming method for shaped product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for precisely and simply forming the shaped product of a body portion such as the hand or foot of a human or animal by using a high transparency glass. <P>SOLUTION: The forming method comprises forming a first recessed mold 1 by pressing a body portion H such as the hand, foot or the like of a human or animal onto a dental impression material 2 made of a soft rubber, forming a first projected mold 3 by pouring gypsum into the hardened recessed mold 1 and hardening, forming a second recessed mold 5 by pressing the hardened projected mold 3 onto a sand material 4, and then pouring a molten glass material 7 in the recessed mold 5, cooling and hardening. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for forming a product as a souvenir or decoration made of a part of a body such as a hand or foot of a person or animal.

In the past, products with molds such as hands and feet have been widely known as souvenirs and decorations, and the idea of a “framed three-dimensional hand / foot” has been proposed as a product molded from glass. ing.
Japanese Utility Model Publication No. 61-16496

  In this device, press the limbs against the Arginsan impression material to take the intaglio, mix the one-to-one ratio of wax and cement into the intaglio and pour the heat-melted one, and use the one that is solidified with this wax and cement as the letterpress. A technology is disclosed in which another intaglio plate is made from the letterpress plate using quenching gypsum as a material, and a glass material is placed in the intaglio plate and fired in a furnace.

  However, in this conventional example, when another intaglio plate is made with hardening gypsum based on a relief plate hardened with wax and cement, smooth mold release cannot be achieved unless the wax is melted by heat. is there.

  In addition, the final glass product here is one in which the glass material that is a granule is put into another intaglio plate of the above-mentioned quenching gypsum material, and heated and fired in a furnace, so the melting temperature is as low as about 900 degrees Celsius. Therefore, since the granular glass material is not sufficiently decomposed, the degree of molecular bonding after cooling is weak, and therefore the strength is inferior, and because the melting temperature is low, the gas is not sufficiently discharged and remains as countless bubbles, Low transparency.

  Furthermore, the surface of the final glass product is opaque because it is formed by being cooled while remaining in contact with the mold surface of another intaglio plate of the above-mentioned quenching gypsum material, so that it takes time to polish the surface of the finished product. In addition, since the strength of the glass material is unstable, this cooling time requires 48 hours or more, and there are many drawbacks and disadvantages.

  Therefore, the present invention is a method for molding a molded product invented in order to solve the conventional dissatisfaction point and meet the demand, and enables a highly transparent glass molded product to be molded accurately and easily. With the goal.

  In order to solve the above problems, the molding product molding method of the present invention is to mold a first concave mold by pressing a part of a body such as a human or animal hand or foot against a dental impression material made of soft rubber, Next, the first convex mold is formed by pouring gypsum into the cured first concave mold and curing, and then the cured first convex mold is pressed against the sand material to form the second concave mold, Further, the glass material is poured into the second concave mold and cooled and hardened.

  As a result of the above-described method for molding a molded product of the present invention, first, the first convex mold is formed by pouring gypsum into the first concave mold made of dental impression material. Therefore, the mold release after curing is extremely easy, and the mold release surface is formed smoothly.

  Further, since the second concave mold is formed simply by pressing the first convex mold against the sand material, no special means for molding the second concave mold is required, and the molding process is omitted. be able to.

  And since the glass material poured into the second concave mold is in a completely melted state at a high temperature, the molecular structure in the product after cooling and curing is extremely strong, and therefore the strength is excellent and the melting temperature is high, so that the gas is It is fully discharged and almost no bubbles remain, and the transparency is high.

  Furthermore, since the final glass product is removed from the second concave mold formed on the sand material and cooled, the surface is transparent, so there is no need to polish the surface of the finished product, and the strength of the glass material is high. Since it is stable, the cooling time can be suppressed to about 16 hours or less.

  Therefore, in the molding method of the present invention, a part of the mold production process can be substantially omitted, so that the molding time can be shortened, the cooling time can be shortened, and thus the production time is short. The manufacturing cost can be reduced by that much, and the resulting glass mold product has many excellent effects such as excellent strength, almost no bubbles and high transparency.

  Here, for example, the hand shape and foot shape of an infant in the growth process, the foot shape of a pet such as a dog / cat, and the like, but also the lips of an entertainer talent can be considered.

  The first concave mold 1 that is molded by pressing against a part of the body is a dental impression material 2, and a predetermined powder material is kneaded with water or hot water for about 20 to 30 seconds to form a soft rubber, for example, FIG. As shown in FIG. 2, the hand H is pressed against the dental impression material 2 to be in a stationary state for about 30 seconds and released. The curing start time at room temperature is about 3 minutes, but depends on the temperature and humidity. Since the dental impression material 2 is finely textured, it is possible to accurately collect even fine parts such as fingerprints.

  Next, the first convex mold 3 shown in FIG. 2 is formed by pouring gypsum into the cured first concave mold 1 and curing it. As the calcined gypsum here, a normal one is adopted, and in consideration of workability, it is desirable that it hardens in about 15 minutes.

  Further, the cured first convex mold 3 is pressed against the sand material 4 to form the second concave mold 5 as shown in FIG. Since the sand material 4 is quartz sand and white sand, even if the sand material 4 remains on the surface of the molded product 6 made of glass, a beautiful appearance can be expressed, and the molten glass material 7 Even if it is poured, it will not burn, and even if it melts into the glass material 7, it will be assimilated, so that no crack will occur.

  In addition, the sand material 4 uses a fine thing of about 200 meshes, and ensures the smoothness of the surface of the mold product 6. The second concave mold 5 is formed by simply pressing the first convex mold 3 against the sand material 4, and does not employ any special molding means.

  The molten glass material 7 poured into the second concave mold 5 shown in FIG. 4 is set at a high temperature of about 1300 ° C. so that the molecular structure of the product 6 after cooling and hardening becomes strong. Rapid cooling must be avoided to prevent vulnerabilities. However, the cooling time is about 16 hours because the strength of the glass material 7 is stable regardless of the initial high temperature, but this time depends on the size and thickness of the glass material 7 and is 3 hours. It may be enough.

  Further, FIG. 5 shows a molded product 6 which is a finished product after cooling, but it is advisable to engrave characters 8 such as a name and date on a part thereof.

It is a perspective view in the state where a hand is pressed against a dental impression material to form a first concave mold. It is a perspective view of the plaster which is the 1st convex mold shape | molded by the 1st concave mold. It is a perspective view of the state which presses gypsum which is the 1st convex mold to sand material, and molds the 2nd concave mold. It is a perspective view of the state which poured the glass material fuse | melted in the 2nd concave mold. It is a perspective view of the mold taking product which is a finished product.

Explanation of symbols

1 First concave mold 2 Dental impression material 3 First convex mold 4 Sand material 5 Second concave mold 6 Molding product 7 Glass material 8 Letter H Hand

Claims (1)

  A first concave mold (1) is formed by pressing a part (H) of a body such as a hand or a foot of a human or animal against a dental impression material (2) made of soft rubber, and then cured. (1) The first convex mold (3) is formed by pouring gypsum into the mold and then curing, and then the cured first convex mold (3) is pressed against the sand material (4) to form the second concave mold. (5) is formed, and the molten glass material (7) is poured into the second concave mold (5) to cool and harden the molded product.

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