JPH1192158A - Planar or ware-like glass product having colored glass pattern, forming die of this glass product and production using this forming die - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide forming dies used for production of products having colored glass patterns to inexpensively produce the planar glass products of a small lot and diversified kinds having patterns of various designs. SOLUTION: A thin flat iron plate is provided with a circumferential blanking line, by which this plate is divided to an outer edge 21 forming the outer peripheral contour of the glass product with an inner peripheral wall and an inner part for this edge. This inner part is provided with a plurality of cores 23 to 25 for forming cavities for pouring of colored glass for patterning and a core 22 for forming a cavity for pouring of transparent molten glass by removing part of the inner part from the other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative plate-shaped or container-shaped glass product in which colored glass is fused to transparent glass, a mold used for the production thereof, and a method for producing the same. It is preferably adopted.

[0002]

2. Description of the Related Art A decorative glassware in which a transparent glass and a colored glass are fused and integrated has been conventionally known. For example, a colored molten glass lump (gob) is placed in a mold and a transparent glass gob is placed thereon. A method of forming by fusing and unifying, allowing to cool, gradually cool, and polishing, or a method of press-forming a gob in a forming die in which transparent glass is fused and integrated on the colored glass, or a centrifugal forming There are known methods.

As a method of performing blow molding, for example, as disclosed in Japanese Patent Publication No. 61-24337, a bottom mold capable of rotating around a vertical axis is disposed at the bottom of a body mold, and a colored melt is placed on the bottom mold. The glass is poured, a parison is inserted into the body mold, the bottom is fused and integrated with the molten colored glass, and the glass is rotated and blown to form a glass container (a glass or the like) with a colored glass pattern on the bottom. Methods are also known.

[0004]

By the way, in the above-mentioned method of fusing and integrating a transparent glass and a colored glass to obtain a glass product patterned with the colored glass, the outline of the colored glass is converted into a design. In order to make a pattern with a shaped shape, it is necessary to manufacture a mold for press molding or centrifugal molding for each pattern, so there is a problem that the manufacturing cost of the mold is increased, and a plurality of colored glass is used. It is not suitable for forming a combined pattern, it tends to be expensive, and it is necessary to mass-produce the same colored pattern, and it is necessary to supply small lots and many kinds of products. There is a problem that it is not suitable. In the case of the centrifugal molding method or the rotary blow molding method, there is also a problem that the shape and pattern of a design that can be manufactured are limited by the rotation of the molding die.

The present invention can solve the above-mentioned problems of the prior art. In particular, the present invention provides a colored glass portion suitable for inexpensively producing various patterns of patterns as small lots and various kinds of products. The object of the present invention is to provide a method for producing a plate-shaped or container-shaped glass product and a plate-shaped or container-shaped glass product produced by the method.

Another object of the present invention is to make it easy to pattern using multicolored colored glass, and to easily produce a plate-shaped or container-shaped glass product having a handmade decorative pattern. It is an object of the present invention to provide a mold and a manufacturing method.

[0007]

SUMMARY OF THE INVENTION A plate-shaped or container-shaped glass product having a pattern of colored glass according to the present invention, which has been made to achieve the above-mentioned object, has a stylized outline and a flat or glass shape. A plurality of the colored glass for patterning, which are spread in a curved surface and are separated in the plane or adjacently contact with each other at the outline thereof, and coated and fused on one surface of the colored glass for patterning; and The transparent glass is formed so as to extend to the outside of the outline of the colored glass portion along a flat or curved surface and to be formed.

[0008] The stylized colored pattern is not limited, and a suitable pattern such as a flower pattern, a pattern of vegetables and fruits, an animal pattern and the like can be patterned.

[0009] The invention of a molding die according to claim 2, which is used for producing the above glass product, is a glass molding die used for molding the flat glass product, wherein the thin flat plate is formed with a peripheral shape for forming a contour. It is made of a thin metal plate in which the peripheral portion and the inner portion with respect to the peripheral portion can be removed by the cutout line, and the inner portion has a colored glass for patterning by removing a part of the inner portion from the other. A plurality of peripheral cutout lines for forming a core for forming a cavity (a cavity) for pouring are provided.

[0010] As the thin metal plate constituting the forming die, one having heat resistance suitable for casting by pouring molten glass is used, and a metal material which is easy to cut out a circumferential cutout line is used. A plate, generally an iron plate, is used. When the cores are adjacent to each other, the peripheral cutout lines are formed by overlapping a part of the peripheral cutout lines of the adjacent cores. Further, the peripheral cutout line for forming the contour and the peripheral cutout line for forming the core may be partially overlapped.

The inner portion of the peripheral portion formed by the peripheral cutout line for forming the contour is detached from the peripheral portion for pouring colored glass or for pouring transparent glass. Therefore, it is preferable to provide a handle, a concave portion, or the like used for removal in advance.

According to the third aspect of the present invention, there is provided a plate-shaped or container-shaped glass product having a pattern of colored glass according to the present invention, wherein the forming die made of the thin metal plate is mounted on a support (usually a plate such as an iron plate). In the placed state, one of the cores defined by the peripheral cutout line for forming the core of the inner portion is removed, and the molten colored glass is poured into the formed space to lose the fluidity. After cooling to the temperature, remove one of the other cores, pour the other molten glass into the resulting space, and cool to a temperature at which the glass loses fluidity. It is characterized in that cooling is performed after removing the entire inner portion of the thin metal plate in contact with the peripheral portion, pouring in the transparent glass, and cooling the same.

[0013] Further, the invention according to claim 4 is that the flat glass product having the colored glass pattern obtained by the above-mentioned production method is placed on a molding die having a concave molding surface and heated and softened. It is characterized in that the glass product is shaped into a curved glass product following the concave molding surface.

In general, heating at about 800 ° C. is performed to soften a sheet glass product so as to follow the curved molding surface of a concave mold.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings.

Embodiment 1 FIGS. 1 to 5 show an outline of a step of forming a plate-like glass product from this example. Cores 22 and 23 as iron pieces are placed on an iron plate support 1. , 24, 25 are mounted on a template (iron plate) 2 having a thickness of about several mm. 2
Reference numeral 1 denotes an outer edge (peripheral portion) of the template 2. In FIG. 1, the cores 22 to 25 are in a state where they are fitted to the original positions of the cutouts. This is ready for molding. In this example, the stylized pattern is a turnip of vegetables.

In the above state, first, the core 23 (the white root of the turnip is designed) is extracted (see FIG. 2), and the flat space (cavity) thus formed is placed as shown in FIG. White molten glass 8 wound on a rod 7 (about 1100 ° C)
And spread it over the entire space with a pressing element (not shown) (see FIG. 4), and make the upper surface almost flat to lose the fluidity (generally, about 650 ° C. or lower).
To form a glass piece 9.

Next, the core 24, which is a pattern of the turnip leaves, is extracted, the light green molten glass is poured into the space formed by this, and is spread so as to spread over the entire space as described above. After cooling, a substantially flat glass piece 10 is formed.

Subsequently, the core 25, which is a pattern of turnip leaves, is withdrawn, and dark green molten glass is poured into the space formed by the core 25 and pushed so as to spread over the entire space as described above. After being spread, it is cooled to form a substantially flat glass piece 11.

Finally, the core 22 is removed (FIG. 5).
6) by pouring and cooling (gradual cooling) colorless and transparent molten glass so as to cover the voids formed thereby and the glass pieces 9 to 11 already formed, and removing the outer edge 21 in FIG. A plate-shaped glass product in which the pattern of Kabu is patterned on the inside of transparent glass is completed.

In the above-mentioned forming step, an appropriate amount of molten glass is poured into the space from which each core has been extracted, and the molten glass is spread by a pressing element. Since the core is not strongly fixed to the peripheral wall, the core in contact with the core can be easily removed. Further, the transparent glass is not necessarily limited to a colorless see-through type, and any transparent glass may be used as long as a patterned design can be seen through the naked eye, and may be colored and transparent.
Further, by making the surface of the iron plate support base 1 a pear ground or the like, it is possible to provide a fogged glass-like design effect.

Such a sheet glass product is not limited, but can be used as a product such as a sheet glass or a glass tile.

FIG. 7 shows a pattern in which the cucumber and eggplant are arranged apart from each other, but they can be formed according to the same manufacturing method as described above.

Embodiment 2 The present embodiment shown in FIGS. 8 and 9 is a glass product 1 in which a pattern in which two leaves are overlapped is patterned in the same manner as in Embodiment 1.
2 is first formed into a flat plate shape in the same manner as in the first embodiment, transferred to a finishing die 13 having a concave surface, reheated to about 700 ° C. to be softened and deformed, and a curved surface following the concave surface of the finishing die 13 And a dish-shaped (container-shaped) glass product having

According to this embodiment, it is possible to provide, with a simple operation, a container-shaped glass product on which various designs are patterned, and in particular, it is possible to provide a thin iron plate capable of relatively easily forming a cutout line. Since it is used, there is an advantage that various kinds of different products can be manufactured in small lots at low cost.

[0026]

The glass product of the present invention has an effect that it is possible to provide glass products having decorative coloring patterns having various handmade feelings.

Further, by using a forming die cut out of a thin metal plate such as a thin iron plate, it is possible to perform patterning with a plurality of colored glasses by a simple operation without using an expensive forming die. There is an effect that patterned glass products of various designs can be produced in small lots and in many kinds at low cost.

Further, it is possible to produce a plate-shaped glass product by a simple operation using the above-mentioned mold, and it is also possible to easily carry out the operation of forming a container-shaped glass product.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mold according to a first embodiment of the present invention and a support base used for manufacturing the mold.

FIG. 2 is a partial perspective view showing a state where a core 23 of the first embodiment is removed.

FIG. 3 is a view showing a state in which molten glass is poured into a space from which a core 23 of FIG. 2 has been extracted.

FIG. 4 is a view for explaining expanding the molten glass poured in FIG. 3;

FIG. 5 is a view showing a state where a core 22 into which a transparent glass is poured is extracted after three cores of FIG. 1 are extracted to form a colored glass piece;

FIG. 6 is a plan view of the glass product manufactured according to the first embodiment.

FIG. 7 is a plan view showing a glass product on which another design of the first embodiment is patterned.

FIG. 8 is a plan view showing a patterned glass product of the second embodiment.

FIG. 9 is a longitudinal sectional view taken along line AA of FIG. 8;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Support stand, 2 ... Mold, 21 ... Outer edge (peripheral part), 22-25 ... Core, 7 ... Rod, 8 ...
..Molten glass, 9 to 11 glass pieces, 12 ...
Glassware, 13 ... Finish type.

Claims (4)

[Claims] 1. A plurality of said colored glass for patterning, which form a stylized outline and spread in a plane or a curved shape, are separated in the plane or are adjacent to each other at the outline thereof, and A transparent glass formed by coating and fusing one surface of the colored glass for patterning and spreading to the outside of the contour of the colored glass portion along the flat or curved surface. A plate-shaped or container-shaped glass product having a colored glass pattern. 2. A glass forming die used for forming the flat glass product according to claim 1, wherein a thin plate is separated from a peripheral portion and an inner portion thereof by a peripheral cutout line for forming a contour. The inner part has a plurality of cores for forming a cavity for pouring colored glass for patterning by removing a part of the inner part from the other. A molding die used for producing a flat glass product having a colored glass pattern, wherein a peripheral cutout line is provided. 3. A core defined by a peripheral cutout line for forming a core of the inner portion in a state where the mold made of the metal sheet according to claim 2 is placed on a support table. After removing, the molten colored glass is poured into the formed void and cooled to a temperature at which the liquidity is lost, and then one of the other cores is removed, and another colored molten glass is formed in the void formed thereby. The operation of pouring the glass and cooling to a temperature at which the liquidity is lost is repeated by the number of the cores for pouring the colored glass, and finally, all the inner portions in contact with the peripheral portion of the thin metal plate are removed and the transparent glass is poured. And then cooling the flat glass product having a colored glass pattern. 4. A flat glass product having a colored glass pattern obtained by the production method according to claim 3 is placed on a molding die having a concave molding surface and heated and softened.
A method of manufacturing a glass article having a colored glass pattern, wherein the glass article is shaped into a curved glass article by following the shape of the concave molding surface.