JPH01294005A - Extrusion molding apparatus - Google Patents

Abstract

PURPOSE:To form a recessed pattern with an arbitrally selected width and distance and to improved design characteristics of an extrusion-molded article, by providing a recessed pattern-forming machine moving along an exit face of a molding die in the left and right direction on the exit face of the molding die of an extrusion molding machine. CONSTITUTION:A molding die 3 for forming an inorg. kneading material alphainto a required shape is set on the apex of an extruder 2 wherein the inorg. kneading material alpha is kneaded and extrusion-molded under pressure and an extrusion-molded item A is extruded therefrom. A cylinder 6 of a recessed pattern-forming machine 5 drives a piston 7 by means of air or oil pressure and a scratching rod 9 of a scratching part 8 is thereby moved back and forth in parallel to a decorative face B in such a way that the scratching rod 9 makes a right angle with the transferring direction of the extrusion-molded item A to form a recessed pattern C on the decorative face B of the extrusion-molded item A by means of the tip end of the scratching rod 9. The pattern can be freely designed by changing the shape of the scratching rod 9, the extrusion speed etc.

Description

[Detailed Description of the Invention] 5. Main Fields of Application] The present invention relates to an extrusion molding device that extrudes clay materials, cement materials, and other inorganic cross-wire materials, and then performs uneven processing. . More specifically, the present invention relates to an extrusion molding apparatus that imparts a pattern to an extruded molded product without deformation.

[Conventional technology]

BACKGROUND ART Conventionally, clay materials, cement-based materials, and other inorganic hybrid materials have been molded using an extrusion molding machine to produce building materials and the like. Further, at this time, the design is improved by imparting a concavo-convex pattern to the extrusion molded body.

[Problem to be solved by the invention]

However, in this case, it is common to provide an uneven portion on the inner surface of the molding die, and all the uneven patterns are continuous in a direction that coincides with the extrusion direction. In other words, it was impossible to create an arbitrary uneven pattern perpendicular to the extrusion direction. For this reason, after being extruded using an extrusion molding device, an uneven pattern is applied using an embossing roll. However, the molded product extruded from the extrusion molding device is extremely flexible, and the cross-sectional shape of the molded product itself is deformed when the embossing roll is pressed against it. Furthermore, the embossing roll has a pattern that repeats at a constant period, and the same pattern is repeatedly formed at the same interval.

[Means to solve the problem]

In order to eliminate the above-mentioned drawbacks, the present invention provides a concave pattern processing machine that moves in the left and right direction along the exit surface of the extrusion molding machine, thereby forming a concave pattern with an arbitrary width. , we propose an extrusion molding device that can form extrusion molded products at arbitrary intervals and greatly improve the design of extrusion molded products.

〔Example〕

An embodiment of an extrusion molding apparatus according to the present invention will be described in detail below with reference to the drawings. Figures 1 to 3 are explanatory diagrams showing the top of the extrusion molding apparatus, and in the figures, α is an inorganic mixed material, such as potter's stone, feldspar, kaolinite, hallosite, metahallosite, terminal clay, and frog's eye. Clay materials, such as clay materials made by crushing clay, Shigaraki clay, etc. and kneading them with water, or cement materials, or mineral fibers such as asbestos and rock wool, carbon fibers, steel fibers, organic fibers, glass fibers, wood chips, chamotte, etc. Contains aggregates such as beads and beans. The cluster is an extruder, such as a vacuum kneader, -
This is a axial or twin-screw extrusion molding machine that performs extrusion molding by kneading the inorganic mixed wire material α and applying pressure. A molding die 3, which is a mold for shaping the inorganic cross-wire material α into a predetermined shape, is attached to the tip of the extruder I, and the extrusion molded product A is extruded, for example, as shown in FIGS. 4(a) to 4(f). It is something. Reference numeral 4 denotes a conveyance section, which supports the extrusion molded product A extruded from the extruder 1 and corrects the bending in the left and right direction. The machine is a concave pattern processing machine, 6 is a cylinder, 7 is a piston, 8 is a recessed part, 9
is a recessed rod, 10 is an electromagnetic solenoid, and 11 is a timer. To explain in more detail, the cylinder 6 drives the piston 7 using air, oil pressure, etc., and moves the recessed rod 9 of the recessed part 8 parallel to the decorative surface B so as to be substantially perpendicular to the flow direction of the extrusion molded product A. The reciprocating movement is performed to form a concave pattern C on the decorative surface B of the extruded product A using the tip of the recessed rod 9. Although not shown, the cylinder 6 is fixed as appropriate depending on the amount of the extruder or the depth, position, shape, etc. of the concave pattern C on the fixing table. Further, the shape of the concave pattern C varies depending on the shape and number of the recessed rods 9, the extrusion speed of the extruded product A, the reciprocating speed of the piston 7, the reciprocating interval, etc. For example, as shown in FIG. 5(a).
It can be formed as shown in ~(e). The material of the recessed rod 9 varies depending on the material of the extrusion molded product A, but it is made of metal, synthetic resin, or ceramic.

[Other Examples]

What has been described above is only one embodiment of the extrusion molding apparatus according to the present invention, which can be formed as shown in FIGS. 6 to 9. That is, FIGS. 6 and 7 show extruded product A.
On an extrusion molding apparatus in which a plurality of concave pattern machining machines are installed on one side or both sides of the flow direction, FIG. This is a recessed portion 8 to which a recessed rod 9 for a book is attached. Moreover, FIGS. 10(a) to (j) show other embodiments of the extruded product A, and D is a hollow hole. Note that the formation of the hollow holes is optional, and the concave pattern C is omitted in the illustration.

〔Effect of the invention〕

As mentioned above, according to the extrusion molding apparatus according to the present invention,
■A non-straight streak pattern can be formed along the flow direction of the extruded product. ■The formation width and interval width of the concave pattern can be set arbitrarily. ■Since the pattern is formed by notches, a concave pattern can be formed without deforming the extruded product. ■Any concave pattern can be formed by simply attaching it to a conventional extruder.

■Extrusion molding and uneven processing can be performed continuously. It has the following characteristics and effects.

[Brief explanation of the drawing]

FIGS. 1, 2, and 3 are explanatory diagrams showing a typical embodiment of an extrusion molding apparatus according to the present invention, and FIGS. 4(a) to (
f) is an explanatory diagram showing an example of an extrusion molded product extruded by the extrusion molding apparatus, FIGS. Figure, Figure 9, 1st
Figures 0 (a) to (j) are explanatory diagrams illustrating other embodiments. Top: Extrusion molding device, I: Extruder, 3: Molding die, Machining: Concave pattern processing machine, 8: Recessed portion. Fig. 1 5''-L Dadan upper... Extrusion molding equipment main... Extruder 3... Molding die stand... Concave pattern processing machine 8... Recessed part Fig. 2 Fig. 3 4 Figure Chen〕 ('b) DaA 904.-24.・,・,゛,:゛1.°:-Pa,°・
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Claims (1)

[Claims] (1) In an extrusion molding device that continuously extrudes an inorganic mixed wire material and imparts a pattern to the extrusion molded product, the exit surface of the molding die of the extrusion molding machine is provided at a direction substantially perpendicular to the extrusion direction of the extrusion molded product. An extrusion molding device characterized by forming a concave pattern processing machine that is attached so as to be movable left and right.