JPH05138635A - Extrusion molding cap of inorganic extrusion product - Google Patents

Abstract

PURPOSE:To improve an extrusion molding cap of an inorg. extruded product in order to uniformly inserting a net like reinforcing material in an extruded product in a uniform laminar state. CONSTITUTION:Slit like insertion ports 3 inserting net like reinforcing materials 2 and continuing in the direction right-angled to an extruding direction are opened to the upper and lower side surfaces of a cap 1 molding an inorg. kneaded material S into a plate shape by extrusion molding so that the insertion direction thereof is inclined so as to conform to the extruding direction and block bodies 4...4 supporting the net like reinforcing materials and protruding from the inner surface of the cap are provided to the upper and lower inside surfaces of the cap 1 on the extrusion side of the slit like insertion ports 3 at an appropriate interval in the inner lateral direction of the cap 1. The guide members 5...5 engaged with both side edges of the net like reinforcing materials are provided to the inner surfaces of the cap in the lateral direction thereof so as to extend along the extruding direction of the inorg. kneaded material and the net like reinforcing materials are developed by the guide members.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an extrusion die for an inorganic extruded product.

[0002]

2. Description of the Related Art Heretofore, there has been widely known an extrusion molding method in which a cement kneaded product is forcedly extruded from a molding die to form a predetermined cross section. In this kind of extrusion molding, especially in the case of plate-shaped products, in order to impart bending strength to the products, insert a net-shaped reinforcing material from the molding die part toward the product surface part and compress the cement kneaded product at the die part. In some cases, a product in which a reinforcing net is embedded at a certain depth from the surface is extrusion-molded (for example, Japanese Patent Application No. 2-25544).

[0003]

[Problems of the prior art] In the above extrusion molding, in order to embed a net-like reinforcing material in a product at a certain depth, a support block is provided so as to project from the inner surface of the die, and the net is formed by this support block. Although the linear reinforcing material was supported, the friction between the support block and the net reinforcing material is large, and due to this friction, the net reinforcing material becomes uneven in the width direction and the length direction or the thickness direction of the molded product. It has a drawback that it may be wavy and deformed.

[0004]

SUMMARY OF THE INVENTION In consideration of the above problems, the present invention provides a method of inserting a net-like reinforcing material into an extruded product,
The object of the present invention is to provide an extrusion-molding die for an inorganic extruded product which can be embedded in a uniform layer form despite the friction with the supporting block.

[0005]

That is, an extrusion molding die for an inorganic extruded product according to the present invention comprises a net-shaped reinforcing material 2 inserted into the upper and lower side surfaces of a die 1 for extruding an inorganic kneaded product into a plate shape. A slit-shaped insertion opening 3 that is continuous in a direction perpendicular to the direction is opened so as to be inclined so that the insertion direction is the forward direction, and the upper and lower parts of the die on the extrusion side from the slit-shaped insertion opening 3 are formed. A block body 4 supporting the net-like reinforcing material on its side surface and protruding to the inner surface of the die.
4 are provided at appropriate intervals in the inner width direction of the die, and guide members 5, 5 engaging with both side edges of the net-like reinforcing material are formed on the inner surface of the side surface in the width direction of the die along the extrusion direction of the inorganic kneaded material. It is characterized by being extended.

[0006]

Next, the present invention will be described with reference to examples. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is an enlarged view of a main part of FIG.

The extrusion molding die 1 for an inorganic extruded product of the present invention has a net-like reinforcing material such as a net made of synthetic resin or metal on the upper and lower side surfaces 1A and 1B of the die 1 for extruding the inorganic kneaded material S into a plate shape. Insert 2 in the direction of extrusion (arrow X)
A slit-shaped insertion opening 3 continuous in a direction perpendicular to the direction (paper spine direction in the figure) is opened so as to be inclined so that the insertion direction (arrow Y) is the forward direction. Upper and lower inner side surfaces 1 of the die 1 on the extrusion side
Blocks 4 ... 4 for supporting the net-shaped reinforcing member 2 on A ′, 1B ′ are provided at appropriate intervals in the width direction of the base 1 (arrow Z, FIG. 2), and the width direction side faces 1C, 1C of the base 1 are provided. (Fig. 2)
On the inner surface, guide members 5, 5 that engage with both side edges 2A, 2A of the net-shaped reinforcing member 2 are provided so as to extend along the extrusion direction (arrow X) of the inorganic kneaded material S. In the above embodiment, the guide members 5 and 5 have grooves 5A for receiving both ends 2A of the net-shaped reinforcing member 2 as shown in an enlarged scale in FIG.
If there are edge members 2C at both ends of the net-shaped reinforcing member 2, the net-shaped reinforcing member 2 is shaped to receive them. Further, as the above-mentioned embodiment, the case where the insertion ports 3 and 3 are provided on both upper and lower surfaces of the mouthpiece 1 is shown.
Only one of the upper and lower surfaces may be used.

[0008]

In the present invention, when the inorganic kneaded material is extruded and formed into a predetermined cross section at the die, it is extruded together with the net-like reinforcing material 2 inserted through the insertion opening 3. At this time, the net-shaped reinforcing member 2 is supported at a predetermined position by the support block 4, and both ends 2A, 2A thereof are connected to the guide member 5,
It is supported by No. 5 and is sent in an expanded state. After passing over the support block 4, the cement kneaded material S is extruded from the mesh-shaped reinforcing material 2 to the outside by extrusion molding pressure, flows out, and is molded into a predetermined cross section on the inner surface of the die, so that the product has a smooth surface.

[0009]

As described above, according to the extrusion molding die of the inorganic extruded product of the present invention, when the net-shaped reinforcing material is embedded in the product and extrusion-molded, the net-shaped reinforcing material 2 has both ends. Since it is supported by the guide members 5 and 5, it is possible to implant in a stable state without causing wavy deformation.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is an enlarged view of a main part of FIG.

[Explanation of reference symbols] 1 ... Extrusion molding die for inorganic extruded product, 1A ... Upper surface, 1
B ... Lower side surface, 2 ... Net-shaped reinforcing material, 3 ... Slit-shaped insertion port, 4 ... Support block, 5 ... Guide

Claims (1)

[Claims] 1. A slit-shaped insertion opening 3 into which a net-shaped reinforcing material 2 is inserted and which is continuous in a direction perpendicular to the extrusion direction, is formed on the upper and lower side surfaces of a die 1 for extruding an inorganic kneaded material into a plate shape.
The insertion direction is opened so as to be forward with respect to the extrusion direction, and the net-shaped reinforcing member is supported on the upper and lower inner side surfaces of the die on the extrusion side from the slit-shaped insertion port 3 and protrudes to the inner surface of the die. 4 are provided at appropriate intervals in the inner width direction of the die, and guide members 5, 5 engaging with both side edges of the net-like reinforcing material are formed on the inner surface of the die in the width direction. An extrusion molding die for an inorganic extruded product, characterized by being extended along the extrusion direction.