JPS5979724A - Method of patterning inorganic extrusion molded product - 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[Detailed description of the invention] Unpublished +] El, regarding a method for patterning an inorganic extruded product,
RI Shi< relates to a method of forming an uneven pattern on the surface of an extrusion molded product formed by extruding a mixture of inorganic substances in a direction that does not match the extrusion molding direction, and is particularly applicable to inorganic extrusion molded products that have a complex cavity inside. BACKGROUND OF THE INVENTION Conventionally, it has been widely used to form an inorganic extrusion molded product by extrusion molding an inorganic kneaded material, which is a method useful for forming a 4=J uneven pattern on the surface. By the way, - by means of incubation, extrusion of sulfur f +
M type product'c nV.

When shaping an inorganic extrusion molded product - *ir+i To obtain a VC uneven rod pattern, generally an extrusion DM is used, an uneven part is provided on the inner surface of the shaping tie, and an inorganic mixed material is extruded from this extrusion molding tie to the surface of the inorganic extrusion molded product. It is common practice to make the uneven pattern 4=J. However, in this case, the uneven pattern formed on the surface of the inorganic extrusion molded product is a continuous uneven pattern in the direction that coincides with the extrusion force direction, and is perpendicular to the extrusion direction.
Alternatively, it has been impossible to form patterns in irregular directions, that is, in directions that do not match the extrusion direction. Therefore, on the surface of the extrusion-free product, there is a concavo-convex portion (in the case of @, there is a concavo-convex plate-like meter 0 adjacent to the outlet of the extrusion molding tie of the inorganic cross-contaminant) in the force direction that coincides with the extrusion direction described above. A rough pattern is formed in a direction that does not coincide with the extrusion direction by pressing the metal roller against the surface of the extrusion molded product discharged from the extrusion molding tie. ing. However, the inorganic extrudates extruded from extrusion ties are extremely flexible and therefore
If the extrusion molded product itself is pressed into contact with pressure, there is a risk that the cross-sectional shape of the extrusion molded product itself will be deformed, and it is extremely difficult to adjust the pressure.
At 14 degrees, the extrusion rate and compression force of the molded product are extremely weak, making it extremely difficult to press the M/J crawl itself, and the surface of the extrusion molded product having a hollow interior becomes extremely weak. It was almost impossible to simultaneously perform VC molding of an uneven pattern in a direction that did not coincide with the extrusion direction during extrusion molding. Therefore, Table 1ri1 of the hollow molded product having the above-mentioned hollow cavity part
Patterns in a direction that does not match the extrusion direction '5r: In order to create a pattern, the extrusion molded product must first be semi-cured or hardened, and then go through a patterning process installed in the material, which is time-consuming and very expensive. There was a drawback.

This is a 1c product that was created in view of the description in Kibatsu 41-1, and the purpose of Kibatsu "M" is to create irregular uneven patterns in a direction different from the extrusion direction or on the surface of an inorganic extruded product. To provide a method for patterning an inorganic extrusion molded product, which can be patterned and which does not deform the extrusion molded product even if a concavo-convex pattern is applied in an uncured state immediately after extrusion.

The present invention will be explained in detail below. The patterning method for inorganic extrusion molded products is to continuously extrude an inorganic material kneaded material (11) from an extrusion molding tie (2) to form an extrusion molded product (3), and to form an extrusion molded product (3). The uneven patterned surface (5) of the patterned mold (4) is opposed to the surface of the patterned mold (4), and suction is applied from the uneven patterned surface (5) to bring the surface of the extrusion molded product (3) into close contact with the uneven patterned surface (5). Next, the F3J4 of the present invention will be specifically described in detail with reference to examples. (21 is an extrusion molding tie, which is a mixture of inorganic materials kneaded with a screw [11 is extruded.The inorganic substances are hydraulic, such as calcium silicate, gypsum, etc.
Meshito, pulp-mixed semeshito, etc. Extrusion tie (
A core (7) for forming a hollow cavity (6) is provided near the discharge port in (2). (4) is an extrusion molding tie (
2) is a patterned mold disposed on the side of the discharge port in the extrusion direction, and is hollow inside. The lower surface of the patterned mold (4) is provided with an uneven patterned surface (5), and this uneven patterned surface (5) is provided with fine suction holes. The upper suction port of the patterned mold (number) +81 K is connected to a suction device such as a vacuum car, near "j", or suction prower. is extruded to form an extrusion molded product (3) having a hollow cavity (6). Immediately after this extrusion molded product (3) is extruded, the suction from the suction hole of the patterned muri (4) also produces a pattern. The uneven patterned surface (6) of the mold (4) is in close contact with the surface of the K extrusion molded product (3), and the uneven pattern can be seen.At this time, the patterned mold (4) is rotated in the extrusion direction at a speed that is synchronized with the extrusion speed. When the pattern is finished, it moves back to the original position. When patterning is done using the Q-type (4), it is cut after extrusion molding as shown in Figure 2, and transferred to the conveyor (9). Alternatively, the cut extrusion molded product (3) may be adsorbed when conveying the extrusion molded product (3) at Transfer] When transferring to the mold (10b), vacuum suction may be performed using the patterned mold (4).Furthermore, when applying the uneven pattern with the suction piece, the suction holes of the patterned mold (4) In order to prevent clogging and improve M-shape properties, this may be done through a thin cloth (11) with air permeability, such as a cloth as shown in FIG. Keep it, 0-
(121) If you pass the rack over the rack, each time the thin cloth (II) becomes dirty, the thin cloth (11) can be rotated fully so that it can be used continuously. It can also be used repeatedly.

As described by Kibatsu, the surface of the extrusion molded product is made to face the uneven patterned surface of the patterned mold, and suction is applied from the uneven patterned surface to bring the surface of the extrusion molded product into close contact with the uneven patterned surface. It is possible to apply an uneven pattern on the surface of the product in a direction that does not match the extrusion direction or that is irregular, and since the pattern is applied in close contact with the patterned surface by suction, no external force is applied that would push the extruded product. , the extrusion molded product does not deform even if it has an uneven pattern.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present method, Figs. 2 and 3 are schematic plan views of another embodiment of the same method, and Fig. 4 is a schematic plan view of another embodiment of the same method. It is a schematic front view, (1)
(2) is an extrusion molded tie, (3) is an extrusion molded product, (4) is a patterned mold, and (6) is an uneven patterned surface. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] [11 A mixture of inorganic substances is continuously extruded from an extrusion molding tie to form an extrusion molded product, and the uneven patterned surface of the patterned mold is made to face the surface of the extrusion molded product, and the uneven patterned surface is suctioned to form the unevenness. A method for patterning an inorganic extrusion molded product, which is characterized by forming an uneven pattern on the patterned surface by secretly changing the surface of the extrusion molded product.