JPS63209902A - Method of molding tabular body having irregularity - 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 [Field of Industrial Application] The present invention relates to a method for molding a plate-like body having irregularities, and particularly to a molding method employing electrophoresis. Specifically, the present invention relates to a molding method suitable for manufacturing a large thin ceramic plate having irregularities.

[Prior Art] A method using electrophoresis is known as a method for producing large ceramic plates. (Japanese Patent Publication No. 55-50781) A molding method employing this known electrophoresis method will be explained with reference to FIG. Reference numerals 1.2 and 1.2 each refer to a roll having at least a surface made of a conductive material, each of which is arranged with its axial center horizontal and with a required gap on the circumferential surface of the roll 1.2.

A triangular cathode 3 convex downward is provided above the minimum gap between the rolls 1.2, and the side surface of the portion between the rolls 1.2 where this cathode 3 is arranged is not shown in the figure. the roll 1.
The suspension can be kept above the minimum gap between 2 and 2. The cathode 3 has a plate portion 3a that is curved in an arc shape along the surface of the roll 1.2, and a side plate portion 3b that connects these plate portions 3a. A discharge port 4 is provided. Reference numeral 5 designates an inlet for introducing the suspension between the rolls 1.2, and below the rolls 2 a conveyor 6 is installed.

In the forming apparatus having such a configuration, the roll 1 is
．． 2, a voltage is applied between the cathode 3 and the roll 1.2, and the roll 1.2 is slowly rotated at the same speed, the suspended particles in the suspension S are It is deposited in a layer on the surface of the roll 1.2 by electrophoresis. As the roll 1.2 rotates, this layered deposit is fed into the smallest gap between the rolls 1.2 and overlapped to form a single sheet.
After passing through the minimum gap, it is peeled off from the surface of the roll 2,
The molded plate 7 is sent to the next process on the conveyor 6.

[Problems to be Solved by the Invention] According to the molding method that employs this known electrophoresis method, even large ceramic plates can be manufactured continuously, but the resulting ceramic plates have problems on both sides. It becomes smooth and flat.

However, the texture and appearance of a large ceramic plate with such a smooth and flat surface resembles that of a steel plate coated with paint, and the unique texture and appearance of ceramics are likely to be lost.

[Means for Solving the Problems] The method for forming a plate-like body having unevenness according to the present invention is a method for forming a plate-like body from a suspension using an electrophoresis method.
The peeled plate-shaped molded product is pressed between a pair of uneven rolls having the same shape, and at this time, the concave portions of one uneven roll and the convex portions of the other uneven roll are synchronized to form a plate-shaped molded product. By pressing, the plate-shaped molded product is folded into a wave shape. In addition, the method for forming a plate-like object having unevenness according to the present invention involves adhering the paint by bringing a paint roll into contact with one of the uneven rolls, and applying the paint from the one unevenness roll to the plate-like molded object. It is something to be transcribed.

[Function] In the method for forming a plate-shaped body of the present invention, charged particles in the suspension adhere to the surfaces of both rolls due to electrophoresis, and after passing through the minimum gap between the rolls, form a flat plate on both sides. It is peeled off from the roll as a shaped body.

This plate-shaped body is then sandwiched between a pair of uneven rolls (hereinafter abbreviated as uneven rolls) and folded.

The uneven rolls have the same shape and are rotated synchronously so that the plate-shaped molded product is sandwiched between the recessed portion or 6 portions of one uneven roll and the protruded portion or recessed portion of the other roll. Therefore, when the plate-shaped molded product is folded and deformed, excessive shearing stress or stamping stress is not applied to the plate-shaped molded product, and the plate-shaped molded product is textured without causing any cracks or ruptures.

Furthermore, according to the present invention, paint can be transferred to the uneven plate-shaped molded product in a predetermined pattern, if necessary.

[Examples] The present invention will be described in more detail below with reference to examples shown in the drawings.

FIG. 1 is a longitudinal sectional view illustrating an embodiment of the molding method of the present invention. In FIG. 1, the same parts as those in the conventional example shown in FIG. ing.

Below these rolls 1.2, a pair of uneven rolls 8.9 for pinching the forming plate 7 is provided. In this embodiment, the uneven roll 8.9 has grooves and protrusions extending in the direction of the roll axis, and the circumferential surface in a cross section perpendicular to the axis has a smooth sine curve. It has become.

The textured rolls 8.9 have the same shape and the same dimensions, but when one textured roll (for example, roller 9) contacts the forming plate 7 with a concave portion, the other textured roll (roller 8)
are rotated synchronously so that the convex portions are in contact with the molding plate 7. Therefore, the smooth and flat molded plate 7 formed by the rolls 1.2 is folded without causing any cracks or ruptures when passing between the uneven rolls 8.9, and becomes an uneven plate-like body. It becomes 10.

In this embodiment, a device 11 for applying paint to the uneven roll 9 is provided. This paint application device 1
1 includes a container 12 for storing paint liquid, a roller 13 disposed half-immersed in the container 12, a roller 14 in contact with the roller 13, a roller 15 in contact with the roller 14, and a roller 15 in contact with the roller 14. A specified pattern relief roller (paint application roller) 16 made of, for example, foamed urethane or sponge is placed in contact with the relief roller 16, and the convex portions 16a of the relief roller 16 are in contact with the uneven roller 9 to adhere the paint. Therefore, the paint A in the container 12 is squeezed by the rollers 14 and 15, and an appropriate amount is deposited on the convex portion 16a of the letterpress roller 16, and then deposited on the uneven roll 9. Then, as the uneven roll 9 comes into contact with the molded body, the paint A is adhered onto the folded molded plate 10 so as to form a predetermined pattern.

In this embodiment, the convex portion 16a of the letterpress roller 16 is attached to the convex strip of the uneven roller 9, and the paint A is applied to the molded plate 1.
It is attached only to the groove (valley) part of 0.

FIG. 2 is a plan view of the molded plate 10 showing an example of this picture pattern, and FIGS. 3 and 4 are cross-sectional views taken along lines III-111 and rV-rV in FIG. 2, respectively.

FIG. 5 is a perspective view of main parts showing another embodiment.

In this embodiment, an uneven roll 20 having a ring-shaped protrusion 20a is used as an uneven roll for folding the molded plate 7.
and an uneven roll 21 having a ring-shaped recess 21a are used. The convex portion 20a and the concave portion 21 are provided at positions that coincide with each other, and press the molded plate 7.10 from opposite sides with the molded plate 7.10 interposed therebetween.

(In FIG. 5, the uneven roll 21 is shown separated from the forming plate 7.10, but in reality, the uneven roll 21
is in contact with the molded plate), 10, and is pressed between the uneven rolls 20. According to this embodiment, the molded plate 10 has grooves 10a and protrusions 10b extending in the flow direction.

Also in this embodiment, the paint coating device 1 is attached to the uneven roll 20.
Paint is applied from the first letterpress roller 22. This letterpress roller 22 is provided with a sponge piece 23 extending in the axial direction on its circumferential surface.
Notches 23a are provided corresponding to the installation positions of the ring-shaped protrusions 20a of the uneven roll 20.

The paint A in the container 12 is transferred to sponge rollers 13, 14.
15, it is attached to the sponge piece 23, and the uneven roll 20
is applied in a linear or narrow strip shape to the surface of the molded plate 1.
Transferred to the board surface of 0.

In this embodiment, the sponge piece 23 is provided with a notch 23a, and since the paint is also adhered to the ring-shaped protrusion 20a of the uneven roll 20, the paint is also applied to the grooves of the molded plate 10 as shown in FIG. 6.7. Paint is applied. 6 is a plan view of a molded plate formed according to the embodiment shown in FIG. 5, and FIG.
FIG.

According to the present invention, by changing the shape of the unevenness of the uneven roll, a molded plate having unevenness of a shape other than the above can be formed. Furthermore, various designs can be made using paint. Examples thereof are shown in FIGS. 8 to 12. In FIG. 8, paint A is adhered in the form of lines or strips between grooves 10a extending in the longitudinal direction. In FIG. 9, paint A is applied in the form of lines or strips to the flat areas between the grid-like grooves 10a.

Figure 10 shows grooves 10a provided alternately from both sides.
Paint A is applied in the form of a line or strip to the flat area between the two. In FIG. 11, paint A is applied in a floral pattern to the flat areas between the grid-like grooves 10a. In FIG. 12, paint 10a is deposited in scattered dots on the flat portion between the short grooves 10a curved in a substantially S-shape.

[Effects] As described above, according to the present invention, a molded plate having irregularities can be continuously molded. According to the present invention, the thickness is, for example, about 0.5 to 10 mm, especially about 1 to 5 mm, the short side is 300 to 900 mm, and the long side is 300 to 240 mm.
Even a large thin plate of approximately 0 mm can be textured efficiently without causing any cracks or breaks.

Further, according to the present invention, it is also possible to continuously apply patterns using desired paints.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view illustrating the method of carrying out the present invention, FIG. 2 is a plan view of a molded plate having unevenness, and FIG.
Figure 4 is a cross-sectional view taken along the line In-III, Figure 2 rV
- A cross-sectional view along the TV line, FIG. 5 is a perspective view explaining another embodiment method, FIG. 6 is a plan view of a different molded plate, FIG. 7 is a cross-sectional view along the line ■-■ in FIG. 6, Figure 8 is a sectional view along the line ■-■ in Figure 6, Figures 9, 10, 11, and 12.
The figure is a plan view of a different molded plate, and FIG. 13 is a sectional view showing a conventional method. 1.2... Roll, 8.9... Uneven roll,
10... Molded plate with unevenness, 16.22... Paint application roller. Patent Applicant Inax Co., Ltd. Representative Director Teru Ina Teruhito III Patent Attorney Tsuyoshi Shigeno Figure 2 Figure 3 Figure 4 A-E Yoyoyoyoha 10 Figure 5 Figure 11 Figure 12 #lA13 Figure 6 Conveyor

Claims (2)

[Claims] (1) A suspension is supplied between a pair of rolls that are placed opposite each other with their axes horizontal, and the suspended particles are deposited in a layer on the circumferential surface of the roll by electrophoresis, and then this layered material is spread around the circumference of the roll. In a forming method in which a plate-shaped molded product is formed by peeling it from a surface, the plate-shaped molded product peeled from the roll is pressed between a pair of uneven rolls having the same shape, and at this time, the recesses of one of the uneven rolls and A method for forming a plate-like body having unevenness, characterized in that the plate-like formed body is folded in a wave-like manner by pressing the convex portion of the other uneven roll against the formed plate-like body in synchronization. (2) A suspension is supplied between a pair of rolls that are placed opposite each other with their axes horizontal, and the suspended particles are deposited in a layer on the roll circumferential surface by electrophoresis, and then this layered material is spread around the roll. In a forming method in which a plate-shaped molded product is formed by peeling it from a surface, the plate-shaped molded product peeled from the roll is pressed between a pair of uneven rolls having the same shape, and at this time, the recesses of one of the uneven rolls and By pressing the convex portion of the other textured roll against the plate-shaped molded product in synchronization, the plate-shaped molded product is folded into a wave shape, and by bringing the paint application roller into contact with one of the textured rolls, the plate-shaped molded product is folded. 1. A method for forming a plate-shaped body having unevenness, the method comprising applying paint to an uneven roll and transferring the paint from the uneven roll to a forming plate.