JPH0558099A - Manufacture of synthetic resin molding with pattern - Google Patents

Abstract

PURPOSE:To make it possible to illuminate the vicinity rationally without damage to the view of the vicinity by providing an illuminator for illuminating the internal space of an artificial rock structure in a direction of an open/close cover so that said cover is automatically opened and closed simultaneously with the switching on and off of the illuminator by means of a photometer or a timer. CONSTITUTION:Apart of a shell 1 is rotatably supported by a hinge 2 to form it into an open/close cover 3 which is opened inwardly and the opening and closing of the cover 3 is effected by an extensible cylinder 4 attached to the inner wall of the shell 1. The illuminating direction of an illuminator 5 provided in the shell l is in the direction of the cover 3 so that when the illuminator 5 is turned on when the cover 3 is open, the light of the illuminator is irradiated to the outside of the shell 1. In an electric circuit of the illuminator 5, a switch which is automatically opened by a photometer or a timer is incorporated in addition to a solenoid valve mounted to the cylinder 4 to automatically effect opening and closing of the cover 3 and turning on and off of the illuminator 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded product using a synthetic resin, more specifically to a synthetic resin molded product having a certain pattern and a method for producing a synthetic resin molded product having a fine and complicated pattern.

[0002]

2. Description of the Related Art A synthetic resin molded product having a beautiful pattern is manufactured by introducing an unsaturated polyester mixture for a pattern into an unsaturated polyester mixture for a base and dispersing the mixture. Then, the molding material thus obtained is put into the hopper, and the hopper or the mold is moved in the horizontal direction while continuously dropping the molding material toward the mold from the slit-shaped supply port of the hopper. A method for producing a molded product having the same (Japanese Examined Patent Publication No. 59-1568), or several kinds of molding materials mainly composed of a fluid synthetic resin are put into a plurality of hoppers, and the hoppers are respectively discharged. Each molding material is individually branched into multiple pieces, and these branched molding materials are poured into a mold in a linear state with adjacent parts in contact with each other, and a flow pattern is inserted. And the like method of producing a synthetic resin product (KOKOKU 3-16254 Patent Publication).

[0003]

However, since the conventional method as described above is a method of pouring a material, only a flow pattern can be formed, and it is fine and complicated such as ivory, marble and agate. I could not reproduce the unique pattern or the ring-shaped pattern as desired.

Further, the pattern cannot be made constant, and it varies depending on the molded product, so that a molded product having a desired pattern cannot be stably provided.

Further, although there is no problem when the molded product is flat and forms a pattern on the surface, in the case of a three-dimensional molded product having convex and concave portions, it is possible to grasp what kind of pattern is inside the molded product. However, the post-processing sometimes resulted in an unattractive pattern.

The invention of the present application is intended to solve the above-mentioned problems, and the object thereof has been achieved by the completion of the invention described below.

[0007]

According to the present invention, a molding compound such as a liquid synthetic resin, an inorganic filler, a pigment and a curing agent is mixed and kneaded to prepare a compound, and then the compound is shaped and optionally shaped. To a desired shape by rolling, folding, or combining a plurality of the molding materials used to form the sheet, and then using the molding material on which the pattern is manufactured as desired. The shape and dimensions of the
Alternatively, it is made into a product by cutting into an arbitrary shape after curing.

Alternatively, a desired pattern is not directly produced, but is produced in an enlarged state in advance, and then a molding material on which the pattern is produced is compressed, pressure-fed and scaled to give a fine and complicated pattern. But also.

[0009]

[Function] A putty-like or clay-like compound molding material is prepared by mixing and kneading a liquid synthetic resin with a filler, a pigment, a curing agent, etc., and a pattern is prepared using the compound molding material. Therefore, it is possible to surely apply a wide variety of desired patterns. Further, the desired pattern is not directly produced, but the desired pattern is produced in an enlarged state in advance, and then the scale is reduced by compression, so that a desired fine and complicated pattern can be applied.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for manufacturing a bet shell-like button will be described below as an embodiment of the present invention with reference to the drawings.

First, 30% of unsaturated polyester resin which is a liquid thermosetting resin, 68% of aluminum hydroxide powder which is an inorganic filler, 0.5% of pigment, and latent curing as a curing agent. 1% of methyl ethyl ketone peroxide, which is an agent, and if necessary, a curing accelerator is added,
These raw materials (20) are mixed and kneaded by a kneader (10) to prepare a putty-like or clay-like lump compound (1) (see FIG. 1).

At this time, a part of the filler may be replaced with a thickener such as magnesium oxide. This makes it possible to adjust the hardness of the molding material and make it easier to handle.

Then, the block-shaped compound (1) is
It is put into a kneading machine (11) equipped with a rectangular base (18) at the outlet to form a shaped plate-shaped block (2). The kneading machine (11) is provided with a vacuum device (not shown) so as to remove bubbles inside the block (see FIG. 2).

The plate-shaped block (2) is a roll machine (12).
A sheet body (3) having a thickness of about 2 mm is prepared. In addition, since the molding material has stickiness, the workability in the future is improved by making the sheet body (3) and sticking the polypropylene film (22) on the front and back surfaces to eliminate stickiness. (See FIG. 3A).

The sheet body (3) thus prepared is prepared in three colors, a dark brown sheet body (3a), a reddish brown sheet body (3b), and a candy-colored sheet body (3c) (see FIG. )reference).

The sheet bodies (3) of these three colors are wound or folded, or a plurality of them are combined in the same manner as the designated Beck pattern (21), but Since it is a fine and complicated pattern, a previously designated pattern is enlarged, and a cylindrical block (5) is produced faithfully based on this enlarged designated pattern.

The molding material formed into the cylindrical block (5) is a rod-shaped molding material having a desired designated pattern, the pattern of which is scaled down by compression and pressure feeding by the pressure type extruder (14). It is a rod (6) (see FIG. 6).

The rod-shaped rod (6) is cut, and the shape thereof is adjusted by press molding into a button shape using a direct pressure type press machine (15), and the button (2) having a becket-like pattern is formed.
5) (see FIGS. 7 and 8).

Alternatively, the rod-shaped rod (6) may be heat-cured as it is and then cut into a button shape.

[0020]

[Effect] As described above, according to the present invention, a fine and complicated unique pattern such as an ivory tone, a marble tone, or an agate tone can be reliably reproduced, and the pattern varies from molded product to nonuniformity. It won't become a thing.

Since any shape and combination of colors is possible, a wide variety of synthetic resin molded products can be produced by changing the extrusion shape.

Furthermore, it is possible to consistently provide a molded product having a beautiful appearance and a high-class appearance at a low price and constantly.

[Brief description of drawings]

FIG. 1 is a schematic view showing an apparatus in a step of mixing and kneading raw materials and a molding material obtained by the apparatus.

FIG. 2 is an abbreviated view showing an apparatus for shaping a molding material obtained by the step shown in FIG. 1 and a molding material obtained by the apparatus.

FIG. 3 is an abbreviated view showing an apparatus for a step of thinly extending the molding material obtained by the step shown in FIG. 2 and a molding material obtained thereby.

FIG. 4 is a perspective view showing a state in which the molding material obtained by the process shown in FIG. 3 is wound.

FIG. 5 is a perspective view showing a designated pattern and a state in which the molding material shown in FIG. 4 is designed based on the designated pattern.

FIG. 6 is a schematic view showing an apparatus in a step of compressing and pressure-feeding the molding material shown in FIG. 5 and a molding material obtained thereby.

FIG. 7 is an abbreviated view showing a device for molding a molding material obtained by the process shown in FIG. 6 into a button and a mold used for the device.

FIG. 8 is a perspective view showing a button obtained as a molded product.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Compound 2 ... Plate block 3 ... Sheet body 4 ... Wound block 5 ... Cylindrical block 6 ... Rod 10 ... Kneading machine 11 ... Kneading machine Feeder 12 ... Roll machine 14 ... Pressure type extruder 15 ... Direct pressure type press machine 16,17 ... Button die 18 ... Mouthpiece 19 ... Roller 20 ... Molding material (Raw material) 21 ... Designated pattern 22 ... Polypropylene film 25 ... Button (molded product)

Claims (5)

[Claims] 1. A compound is prepared by mixing and kneading a molding material such as a synthetic resin, a filler, a pigment and a curing agent, and then the compound is stretched to an arbitrary thickness to form a sheet, which is formed into a sheet. A synthetic resin molding having a desired pattern by winding the material, folding it, or combining a plurality of these to create a desired pattern, and then making the molding material on which the pattern is manufactured into an arbitrary shape and dimension. A method for producing a synthetic resin molded article with a pattern, which comprises producing an article. 2. A synthetic resin molded product having a delicate and complicated pattern is manufactured by enlarging and manufacturing a desired pattern, and then compressing and pressure-sending the molding material on which the pattern is manufactured to reduce the scale. The method for producing a patterned synthetic resin molded article according to claim 1. 3. The method for producing a patterned synthetic resin molded article according to claim 1, wherein the synthetic resin is a liquid thermosetting resin. 4. The method for producing a patterned synthetic resin molded article according to claim 1 or 2, wherein the curing agent is a latent curing agent. 5. The method for producing a patterned synthetic resin molded product according to claim 1, wherein a part of the filler is replaced with a thickener.