JPH0733012B2 - Extrusion molding equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to an extrusion-molding apparatus for extrusion-molding clay materials, cement-based materials, and other inorganic kneading materials, and then subjecting them to uneven processing. More specifically, it relates to an extrusion molding apparatus that imparts a pattern to an extrusion molded product without deformation.

[Conventional technology]

BACKGROUND ART Conventionally, clay materials, cement materials, and other inorganic kneading materials have been molded using an extruder to manufacture building materials and the like. Further, at this time, it is also attempted to improve the designability by giving an uneven pattern to the extruded product.

[Problems to be Solved by the Invention]

However, in this case, it is common practice to provide an uneven portion on the inner surface of the molding die, and all the uneven patterns are continuous patterns in a direction that coincides with the extrusion direction. In other words, it was impossible to form an arbitrary uneven pattern orthogonal to the extrusion direction. Therefore, after being extruded by an extrusion molding device, an embossing roll is used to form an uneven pattern. However, the molded product extruded from the extrusion molding apparatus is extremely flexible, and there is a drawback that the cross-sectional shape of the molded product itself is deformed when the embossing roll is pressure-bonded. Further, the embossing roll had a pattern repeated at a constant cycle, and the same pattern was repeatedly formed at the same intervals.

[Means for Solving the Problems]

In order to eliminate the above-mentioned drawbacks, the present invention forms a concave pattern processing machine that moves in the left-right direction along the exit surface of the molding die of an extrusion molding machine to form a concave pattern with an arbitrary width. The present invention proposes an extrusion molding device which is formed at arbitrary intervals and which greatly improves the designability of an extrusion molded product.

〔Example〕

An embodiment of an extrusion molding apparatus according to the present invention will be described in detail below with reference to the drawings. 1 to 3 are explanatory views showing the extrusion molding apparatus 1 , wherein α is an inorganic kneading material, for example, porcelain stone, feldspar, kaolinite, halosite, metahalosite, kibushi clay, frog. Clay material obtained by crushing eye clay, Shigaraki clay, etc. and kneading with water, or cement material, or mineral fiber such as asbestos and rock wool, carbon fiber, steel fiber, organic fiber, glass fiber, wood chip, chamotte , Beads, etc. are mixed. An extruder 2 is, for example, a vacuum clay kneader, a single-screw extruder, or a twin-screw extruder, which extrudes by kneading the inorganic kneading material α and applying pressure. A molding die 3 which is a mold for shaping the inorganic kneading material α into a predetermined shape is attached to the tip of the extruder 2 and is extruded as an extrusion molded product A as shown in FIGS. 4 (a) to 4 (f), for example. It is a thing. Reference numeral 4 denotes a conveying section, which is a section that supports the extrusion molded product A extruded from the extruder 2 and corrects the bending in the left-right direction. 5 is a concave pattern processing machine, 6 is a cylinder, 7 is a piston, 8 is a notch,
Reference numeral 9 is a notched rod, 10 is an electromagnetic solenoid, and 11 is a timer. More specifically, the cylinder 6 drives the piston 7 by air, hydraulic pressure or the like, and the notch bar 9 of the notch portion 8 is driven.
Is reciprocated in parallel to the decorative surface B so as to be substantially orthogonal to the flow direction of the extruded product A, and a concave pattern C is formed on the decorative surface B of the extruded product A by the tip of the notch bar 9. It is a thing. Although not shown, the cylinder 6 is an extruder.
2 , or is appropriately fixed on the fixed base depending on the depth, position, shape, etc. of the concave pattern C. Further concave pattern C
The formation shape of the is the shape of the notched bar 9, the number, the extruded product A
It depends on the extrusion speed, the reciprocating speed of the piston 7, the reciprocating interval, etc., for example, FIG.
It can be formed as shown in (m). The material of the notch bar 9 is made of metal, synthetic resin material, or ceramic, although it depends on the material of the extruded product A.

[Other Examples]

The above description is only one example of the extrusion molding apparatus according to the present invention, and the extrusion molding apparatus can be formed as shown in FIGS. 6 to 9. That is, FIG. 6 and FIG.
The extrusion molding apparatus 1 in which a plurality of concave patterning machines 5 are installed on one side or both sides in the flow direction of FIG. 8, FIG. 8 is a concave patterning machine 5 in which a plurality of notches 8 are formed in a piston 7, FIG. Is a notch portion 8 to which a plurality of notch bars 9 are attached. 10 (a) to 10 (j) show other examples of the extrusion molded article A, and D is a hollow hole. In addition,
The formation of the hollow holes D is optional, and the concave pattern C is omitted.

〔The invention's effect〕

As described above, according to the extrusion molding device of the present invention,
A non-linear streak pattern can be formed along the flow direction of the extruded product. The formation width of the concave pattern and the interval width can be arbitrarily set. Since the pattern is formed by notching, the concave pattern can be formed without deforming the extrusion molded product. An arbitrary concave pattern can be formed only by attaching it to a conventional extruder.
Extrusion molding and uneven processing can be performed continuously. There are characteristics and effects.

[Brief description of drawings]

1, 2 and 3 are explanatory views showing a typical embodiment of the extrusion molding apparatus according to the present invention, and FIG. 4 (a) to FIG.
(F) is an explanatory view showing an example of an extrusion-molded product extruded by the above-mentioned extrusion-molding device, and Figs. 5 (a) to (m) are plan views showing examples of concave pattern formation, Fig. 6, Fig. 7, and Fig. 7. 8 and 9,
FIGS. 10 (a) to 10 (j) are explanatory views for explaining another embodiment. 1 ... Extrusion molding device, 2 ... Extruder, 3 ... Molding die, 5 ... Concave pattern processing machine, 8 ... Notched part.

Claims (1)

[Claims] 1. An extrusion molding apparatus for continuously extruding an inorganic kneading material and imparting a pattern to the extruded product,
An extrusion molding apparatus characterized in that a concave pattern processing machine attached so as to be movable left and right so as to be substantially orthogonal to the extrusion direction of the extrusion molded article is formed on the exit surface of the molding die of the extrusion molding machine.