JPS63247006A - Manufacture of decorative block by extrusion molding - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method for manufacturing decorative blocks by extrusion molding.

(b) Prior art and its problems Conventionally, as a concrete 2 costume product, a core of a different color and material from the concrete block body was embedded in the concrete block body to give the block a decorative effect. It is being said.

However, in the manufacturing process of such blocks, the core is first formed, the core is positioned in the box-shaped formwork of the concrete block body, concrete is filled into the formwork and solidified, and then the mold is removed. As a result, since the blocks are manufactured individually, there is a problem in that it takes time and effort to manufacture such blocks, and it also takes time and effort to clean and maintain the formwork after demolding.

(c) Means for solving the problem Therefore, in the present invention, a material obtained by kneading clay for pottery or porcelain with water, or concrete or mortar is extruded using an extrusion molding device to form a hollow extrusion. The extrusion molded product is cut into a predetermined width to form a primary processed product, the same processed product is cured, dried, and fired to form a block body, and the block body is inserted into the hollow part of the block body. The purpose of this invention is to provide a method for manufacturing decorative blocks by extrusion molding by filling and solidifying mortar, resin concrete, etc. of different colors and materials.

(d) Functions and Effects In the present invention, when concrete or mortar is used as a raw material, it is extruded into a hollow extrusion molded product using an extrusion molding device, and the extrusion molded product is cut into a predetermined width and subjected to primary treatment. The final product can be produced by molding the product, curing the same processed product to produce a block body, and filling and fixing mortar or resin concrete, etc. of a different color and material from the block body into the hollow part of the block body. A certain block is completed.

At this time, the block body can be manufactured by extrusion molding using an extrusion molding device, cutting it into a predetermined width, and curing it. By using only the bottom plate formwork for the main body to prevent filler from flowing out, it is possible to mass produce compared to conventional formwork molding, and has the advantage of eliminating problems such as cleaning and maintenance of the formwork. be.

Furthermore, by filling and solidifying materials of different colors and materials into the hollow part of the block body, it is possible to change the color tone of the entire block in a wide variety of ways and give it decorative properties. It also enhances the aesthetic appearance when constructed.

In addition, when clay, etc. for pottery or porcelain is kneaded with water, it is extruded and cut, then dried and fired to leave a block body, and the hollow part of the block body is filled with mortar or resin concrete. The final product, the decorative block, is manufactured by filling and assimilating the materials.

In the case of such a decorative block, the block body has a color tone unique to ceramics, and the resin concrete filled and solidified in the hollow portion exhibits a different color tone, making the block rich in decoration as a whole. Can be done.

As described above, according to the present invention, decorative blocks can be mass-produced in a short period of time, and manufacturing costs can be significantly reduced.

(e) Example The example of the present invention will be described in detail based on the drawings. (8) shown in FIG. 1 is a decorative block manufactured according to the present invention, (1) is the block body, (2), (3) (4) and (5) are the first, second, and third portions formed in the block body (1).
, the fourth hollow part, (6) (1) (8) (9) are the first, second, third, and third hollow parts filled in the first to fourth hollow parts (203), (4), and (5), respectively. It is a 4-packed body.

The block body (1) is formed from a cement material such as concrete or mortar, or a ceramic material such as clay or silica sand for pottery or porcelain.

In addition, the first to fourth fillers (6) (1) (8) (9
) is made of a material different in color or material from the concrete block body (1), such as colored mortar, gravel, or resin concrete.

Next, the manufacturing process of such a decorative block (^) will be explained in detail based on FIGS. 1 and 2.

First, the case where the block body (1) of the decorative block (8) is molded from a cement material such as concrete or mortar will be described in detail based on FIG. 2.

That is, the block body manufacturing process (B) using a cement-based material shown in FIG.
), a take-up and cutting process (14), and a curing process (15).

Each step will be explained in detail below. First, the pretreatment step (10
) is used to adjust the particle size of cement, sand, fine aggregate, and coarse aggregate, which are concrete raw materials or mortar raw materials, and to combine these raw materials with fiber materials such as asbestos, chemical fibers, and glass fibers, and thickeners ( For example, the mixing ratio of methyl cellulose), cement hardening retardant, colored powder, and water is weighed.

Here, Table 1 shows examples of mixing ratios of the above-mentioned raw materials, etc., and Table 2 shows a more desirable example.

Table 1 Cement 40-50 Parts by weight Sand 10-30 Parts by weight Fine aggregate 10-30 Parts by weight Fiber material 10-15 Parts by weight Thickener 0.3-0°6 Parts by weight Retarder 0.3-0. 6 parts by weight Water 15-25 parts by weight Second Table Cement 45 parts by weight Sand 12 parts by weight Fine aggregate 12 parts by weight Fiber material 12 parts by weight Thickener 0.5 parts by weight Retardant 0.5 parts by weight Water 18 parts by weight Next, in the mixing and stirring step (11), the above pretreatment step (10
) are mixed together and further stirred using a stirring device to form a clay-like material.

Next, in a degassing step (12), the clay-like material is degassed.

This degassing treatment reduces the voids in the extruded product to be extruded in the subsequent extrusion molding process (13), makes the structure of the block body (1) dense, and prevents liquid from penetrating into the block body. This treatment is used to make the product resistant to freezing and thawing, and to prevent deformation and destruction due to the expansion of air in the extruded product immediately after extrusion molding.

Next, in an extrusion molding step (13), the clay-like material that has been deaerated as described above is continuously fed into an extrusion molding device and extruded through a nozzle provided in the same device.

Note that the degassing step (12) and the extrusion molding step (13) may be integrated. Note that the shape of the extruded product is determined by the nozzle shape.

Then, in the take-off and cutting step (14), the above-mentioned extruded product is taken off by a take-off device synchronized with the extrusion speed from the nozzle part, and cut into a predetermined width by a cutting device to form a primary processed product. .

Next, in a curing step (15), the next-processed product is cured to complete the block body (1).

Here, the curing step (15) can be roughly divided into natural curing and heating curing, and heating curing can be further divided into steam curing and autoclave.

And natural curing means curing as it is naturally,
It is not heated or pressurized from the outside.

In addition, steam curing in heating curing is performed for primary treated products at 60°C or more.
It is cured in a steam room at 70°C.

In addition, autoclaves, which are used for heating and curing, maintain a steam chamber pressurized to 10 atmospheres at around 180°C, and the primary treated products are cured in the same chamber. The block body (1) is completed.

The block body (1) has a wide variety of color tones depending on the type and amount of colored powder weighed in the pretreatment step (10).

If the hollow part of the block body (1) thus produced is filled with a filler and solidified, a decorative block (^), which is a final product, is completed.

At this time, the filler is made of the different materials mentioned above to give the decorative block (A) decorative properties.

Next, the case where the block body (1) is molded from a ceramic material such as clay for pottery or porcelain or silica sand is described in the third step.
This will be explained in detail based on the diagram.

That is, the block body manufacturing process (C) using ceramic material shown in Fig. 3 includes a pretreatment process (16), a mixing and stirring process (11), a degassing process (18), and an extrusion molding process (19).
, a take-off cutting step (20), a drying step (21), and
It consists of a firing step (22).

Each step will be explained in detail below. First, the pretreatment step (16
) is used to adjust the particle size of ceramic materials such as clay for pottery or porcelain, chamotte powder, etc., and also to weigh the mixing ratio of these raw materials and water.

Here, an example of the mixing ratio of the above raw materials and water is shown in Table 3.

Table 3 Clay 75 parts by weight Chamotte powder 8 parts by weight Water 17 parts by weight Next, in the mixing and stirring step (11), the above pretreatment step (16
) are mixed and further stirred using a stirring device to form a clay-like material.

Next, in a degassing step (18), the clay-like material is degassed. This degassing treatment prevents deformation and destruction due to the expansion of air in the extruded product immediately after the subsequent extrusion molding, and also prevents the subsequent This is done to prevent cracks and destruction caused by air during firing.

Next, in an extrusion molding step (19), the clay-like material that has been deaerated as described above is continuously fed into an extrusion molding device and extruded through a nozzle provided in the same device.

Note that the degassing step (18) and the extrusion molding step (19) may be integrated. Further, the shape of the extruded product is determined by the nozzle shape.

Then, in the take-off and cutting step (20), the extrusion molded product is
The product is taken up by a take-off device synchronized with the extrusion speed from the nozzle part, and cut into a predetermined size by a cutting device to form a primary processed product.

Next, in a drying step (21), the second-processed product is dried so that the moisture content of the second-processed product becomes 5% or less.

At this time, if a glaze is applied and fired in the subsequent firing step (22), the glaze is applied to the next-processed product in advance and then dried.

Next, in a firing step (22), the steam-dried and primarily treated product is fired at a temperature of around 1200°C to complete a block body (1).

This block body (1) is different from the above-mentioned block body made of cement-based material and has a color tone unique to ceramics.

By filling the hollow portion of the block body (1) thus completed with the filler and solidifying it, the final product, the decorative block (8), is completed.

At this time, the filler may be made of the different materials mentioned above to give the decorative block (A) decorative properties.

In addition, the shape of the block body (1), the shape of the hollow part, etc.
It can be formed into any desired shape depending on the nozzle shape of the extrusion forming device, and is not limited to the shape shown in FIG.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a decorative block according to the present invention. Figure 2 is a diagram of the manufacturing process for the block body made of cement-based material. Figure 3 is a diagram of the manufacturing process for the block body made of ceramic material. (8): Decorative blower (B): Manufacturing process diagram of block body made of cement material (C)
): Ceramic material block body manufacturing process diagram (1) Niblock body (10): Pre-treatment process (11): Mixing and stirring process (13): Extrusion molding process (14): Taking-off and cutting process (15): Curing process

Claims (1)

[Claims] 1) Extrusion molding of a mixture of clay, etc. for pottery or porcelain and water, or concrete or mortar using an extrusion molding device to form a hollow extrusion molded product, and cutting the extrusion molded product into a predetermined width. The primary treated product is molded, and the same primary treated product is cured, dried, and fired to form the block body, and the hollow part of the block body is filled with mortar, resin concrete, etc. of a different color and material from the block body and solidified. A method for manufacturing decorative blocks by extrusion molding.