JP2932232B2 - Method of manufacturing artificial marble with flow pattern - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to a manufacturing method of the formed artificial Dali stone flow pattern using a resin concrete by hardening various inorganic or organic fillers in synthetic resins.

[0002]

2. Description of the Related Art This type of resin concrete (hereinafter referred to as "resin concrete")
As artificial marbles using a "resin-con", counters for washrooms, bathrooms, kitchens, toilets and the like, or interior decoration materials for construction and the like are known.

FIG. 5 is a perspective view showing the washing counter 1. As shown in FIG.
The apron 3 and the back guard 4 in the up-down direction are respectively formed continuously at both ends of the. A hole 5 for mounting a washbasin is formed in the center of the flat portion 2.

[0006] In the conventional method of manufacturing the basin counter 1, first, as shown in FIG. 6, a separation mold 7 for forming a basin mounting hole 5 is placed on the upper surface of a molding die 6. It is fixed. Then, a resin condenser in which the pattern toner is dispersed is prepared in the hopper 8, and the resin is discharged from a plurality of outlet holes provided in the bottom wall of the hopper 8 and poured. The pouring is performed by reciprocating the hopper 8 a plurality of times until the thickness of the register becomes a predetermined thickness. By the pouring,
The pattern toner appears in a streak shape and has a flowing pattern.

[0005] The apron 3 and the back guard 4 are
The flat part 2 and the back guard 4 may be separately molded and adhered to each other by an adhesive, and the flat part 2 and the back guard 4 may be poured. The casting may be performed in a horizontal state.

[0006]

However, in the above-mentioned conventional method for producing artificial marble, in what state the pattern toner flows out from the plurality of outflow holes of the hopper 8 and how it spreads. , If you don't actually try it,
There is a disadvantage that the stability of the pattern is lacking. In addition, there is also a disadvantage that the pattern toner may enter the area of the backup layer, and a pattern is formed in an extra place, thereby deteriorating the quality of the product.

Further, the hopper 8 is reciprocated to obtain a product having a predetermined thickness, and there is a disadvantage that the molding time is prolonged.

Further, since the casting is performed over the whole of the molding die, the resin mold having a thickness corresponding to the thickness of the product is separated from the separation die 7.
, And it was necessary to scrape and remove the resin resist on the separation mold 7 in a later step.

[0009]

SUMMARY OF THE INVENTION The present invention has been improved and eliminated in view of the above-mentioned problems, and can shorten the molding time, does not require a wiping operation in a later step, and can stabilize the pattern. it is intended to provide cents a manufacturing method of excellent artificial Dali stone to sex.

[0010] In order to solve the above-mentioned problems, the present invention employs a means for pressing a hopper having a slit-shaped discharge port, and applying a pressure to the surface of a forming die with the hopper.
A flow pattern artificial marble, characterized in that a flow pattern layer having a thickness of about 2 mm is formed by casting, and a backup layer is poured into the upper surface of the flow pattern layer at a stretch until the product becomes thick.

[0011]

According to the production method of the present invention, a hopper having a slit-shaped discharge port is pressurized, and a flow pattern layer having a thickness of 1 to 2 mm is formed by the hopper. In order to pour in a predetermined width with a thickness of 1 to 2 mm, it is impossible in the natural flow method, and a pressure of about 0.5 to 1 kgf / cm ² is preferable. With this thickness, the pattern layer does not spread unnecessarily after pouring, and the stability of the pattern is excellent.

After the pattern layer having a thickness of 1 to 2 mm is formed, a backup resin is poured on the pattern layer at a stretch until the thickness of the product is reduced to form a backup layer. Pouring, bucket,
What is necessary is just to carry out with a wide-mouth container, such as a can and a hopper. In addition, a method of pouring after the upper and lower molds are set is also possible.

In the case of a pattern layer having a thickness of 1 to 2 mm, even if there is a separation mold, it is not necessary to separate and remove the pattern layer applied thereon. Also, since it is not necessary to reciprocate the hopper, the molding time can be significantly reduced.

It is easy to think that a pattern layer having a thickness of 1 to 2 mm does not provide a sufficient sense of depth. However, by controlling the dispersion state of the pattern toner, a depth equivalent to that of a conventional product is obtained. It is possible to give a feeling.

[0015]

EXAMPLES Hereinafter, as follows will be described with reference to the embodiments of the manufacturing method shown in the drawings of the present invention. The same reference numerals as those in the related art denote the same members.

FIG. 1 is a longitudinal sectional view showing a flowable artificial marble washbasin 9 according to the manufacturing method of the present invention. As shown in FIG. 1, the wash counter 9 comprises a gel coat layer 10 as a transparent protective layer on the surface, a flow pattern layer 11 having a thickness of 1 to 2 mm, and a backup layer 12. The pattern of the flow pattern layer 11 is visually recognized through the gel coat layer 10. It should be noted that the gel coat layer 10 is common to this type of product, and is also applied to conventional products.

In the method of manufacturing the wash counter 9 having such a structure, first, as shown in FIG. 2, a separation mold 7 for forming a hole for mounting a wash basin is placed and fixed on the surface of a mold 6. . Then, the gel coat layer 10 is spray-coated on the surface of the mold 6.

Next, the hopper 13 filled with the pattern toner is filled into the hopper 13, and the inside of the hopper 13 is pressurized to 0.5 to 1 kgf / cm ² . The method of pressurization may use compressed air,
Further, the registration control itself may be pressure-fed by a screw pump or the like.

The resin-resin filled with the pattern toner by the above-mentioned pressure is moved from the slit-shaped discharge port 14 of the hopper 13 to the
The liquid is discharged with a thickness of mm, and is applied to the entire surface of the molding die 6 and the separation die 7 according to the movement of the hopper 13. At this time, the pattern toner is discharged in a streak form from the discharge ports 14 to form a flowing pattern. The reason for limiting the thickness of the flow pattern layer 11 to 1 to 2 mm is that if the thickness is less than 1 mm, the film is not discharged smoothly,
This is because a continuous flow pattern cannot be formed due to film breakage. If it exceeds 2 mm, the backup layer 12 in the subsequent process
This is because there is a risk that the flow pattern is dispersed when forming the pattern.

In this embodiment, since the thickness of the coating of the flow pattern layer 11 is extremely thin, that is, 1 to 2 mm, the operation of peeling and removing the resist condensed from the flow pattern layer 11 applied to the separation mold 7 is performed. Is unnecessary, and this part may be cut off after demolding. The cutting operation is very simple because of the thin film.

After the resin pattern filled with the pattern toner is coated to a thickness of 1 to 2 mm to form the flow pattern layer 11, as shown in FIG. 3, a wide-open container such as a bucket or a can is used. The resin is poured at a stroke to the product thickness using 15 to form the backup layer 12.

For forming the backup layer 12, as shown in FIG. 4, a hopper 17 in which a slit-shaped discharge port 16 has a large opening may be used. Note that the opening of the discharge port 16 is set to a size that discharges a backup layer forming resisticon that is substantially equal to the product thickness at a stretch. In this case,
A blade 18 for scraping may be attached to the hopper 17, and the surface of the backup layer 12 may be leveled at the same time as the formation of the backup layer 12, and the resin condensed on the separation mold 7 may be peeled off. . Note that this method is particularly effective when the backup layer 12 is in a plain state in which no pattern is present, but it is needless to say that a pattern may be present.

By the way, the present invention is not limited to the above-mentioned embodiment, and can be used as a method for producing a building material and a surface material other than a wash counter.

[0024]

As described above, in the present invention,
A hopper having a slit-shaped discharge port is pressurized to 1-2
A flow pattern layer having a thickness of mm is formed, and a backup layer is poured on the flow pattern layer at a stretch until the product becomes thick. By making the thickness of the flow pattern layer in the range of 1 to 2 mm, the pattern does not dissipate and the backup layer does not enter the pattern, providing a high quality artificial marble with excellent pattern stability and high quality It is possible to

If the pattern layer has a thickness of 1 to 2 mm, it is not necessary to separate and remove the pattern layer applied thereon even if there is a separation mold. Furthermore, it is not necessary to reciprocate the hopper to form the backup layer and to cast the hopper to a predetermined thickness, so that the molding time can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a flowable artificial marble according to the present invention.

FIG. 2 is a partial perspective view showing a step of forming a pattern layer of a flowable artificial marble according to the present invention.

FIG. 3 is a partial perspective view showing a step of forming a backup layer of the flowable artificial marble according to the present invention using a container.

FIG. 4 is a side view showing a step of forming a backup layer of the flowable artificial marble according to the present invention using a hopper.

FIG. 5 is a perspective view showing an example of a washing counter.

FIG. 6 is a partial perspective view showing a conventional method of manufacturing a flowable artificial marble.

[Explanation of symbols]

6 ... Mold 7 ... Separation mold 9 ... Wash counter 10 ... Gel coat layer 11 ... Pattern layer 12 ... Backup layer 13 ... Hopper 14 ... Slit-shaped discharge port 15 ... Container 17 ... Hopper

Claims (1)

(57) [Claims] 1. A hopper having a slit-shaped discharge port is pressurized, and a flow pattern layer having a thickness of 1 to 2 mm is poured and formed on the surface of a molding die by the hopper, and a product thickness is formed on an upper surface of the flow pattern layer. A method for producing a flowable artificial marble, characterized by pouring a backup layer all at once.