JPS6127164B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a method for forming a wavy tile with a draining string, and its object is to form a flat green sheet 4 using a press upper die 3 equipped with a cutting blade 1 and a groove 2 for the draining string.
A method for forming a wavy tile with a draining string, which is characterized in that a draining cord 6 is formed on the green sheet 4 at the same time as the green sheet 4 is punched out into the planar development shape of the wavy tile 5, and thereafter, the flat green sheet 4 is vacuum-formed into a wavy shape. The purpose thereof is to provide a method for forming a wavy tile with draining strings, which allows draining strings to be easily added to the wavy tile with high precision.

The present invention will be explained in detail below with reference to the accompanying drawings. 4 is a green sheet, which is a soft sheet made by a paper-making machine and has a flat plate shape. As shown in FIG. 1, this paper-formed flat green sheet 4 is placed on a felt 8 on a perforated iron plate 7, and after removing excess moisture, it is transported directly under the press upper die 3. be done. As shown in FIG. 2, a cutting blade 1 and a drain cord 2 are provided on the lower surface of the upper press die 3.
The green sheet 4 is pressed by this press upper mold 3 and punched out into the planar development shape of a wavy tile 5 as shown in FIG. A plurality of draining strings 6 are provided protruding from the upper surface of 4. Thereafter, the punched flat green sheet 4 is adsorbed to the lower surface of the vacuum device 9 and lifted up as shown in FIG. 5a. The vacuum device 9 includes a suction block 10 and a positioning block 11, each of which has a decompression chamber inside, which are slidably inserted into a support shaft 12. The lower surface of the suction block 10, which has a convex surface, is located above the lower surface of the positioning block 11, which has a concave surface.The suction block 10 is connected to a vacuum pump via a flexible pipe 13, and the green sheet 4 is suctioned by this suction block 10. The vacuum device 9 suctions the green sheet 4 into a flat plate with the suction blocks 10 spaced apart from each other, and then when the suction block 10 and the positioning block 11 are slid and brought close to each other, the green sheet 4 is placed in the fifth position. The green sheet 4 is formed into a wavy shape as shown in FIG. 6, and then the green sheet 4 is aged and hardened to obtain a wavy roof tile 5 as shown in FIG.

Since the draining string 6 is formed on this wavy tile 5, when the wavy tile 5 is constructed as shown in FIG. 7, the lower surface of the upper wavy tile 5 and the lower wavy tile 5 and the upper surface is closed by the draining cord 6, and water can be prevented from entering from there.

As described above, the present invention punches a flat green sheet into the planar development shape of a wavy tile using a press upper die equipped with a cutting blade and a groove for a drain string, and at the same time forms a drain groove in the green sheet. Since the green sheet is vacuum-formed into a corrugated shape, draining strings can be provided on the green sheet in the flat state before it is corrugated, and the press equipment is simple and accurate, and the process of punching the green sheet is The advantage is that they can be done simultaneously. Furthermore, since the draining string groove is provided in the press upper die rather than the vacuum device, there is an advantage that many shapes can be easily accommodated by replacing the press upper die.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the green sheet, felt, and perforated iron plate, Figure 2 is a cross-sectional view showing the state immediately before pressing the green sheet with the upper press mold, and Figure 3 is a perspective view of the green sheet, felt, and perforated iron plate.
The figure is a perspective view of the punched green sheet, Figure 4 is an enlarged cross-sectional view of the same as above, Figures 5a and b are front views showing the vacuum device, Figure 6 is a perspective view of the wavy tile, and Figure 7 is a perspective view of the wavy tile.
The figure is a partially cutaway front view showing the state of implementation of the wavy tiles. 1... Cutting blade, 2... Groove for draining string, 3... Press upper mold, 4... Grin sheet, 5... Wavy tile, 6... Draining string.

Claims (1)

[Claims] 1 Using a press upper die equipped with a cutting blade and a groove for draining cord, a flat green sheet is punched out into the planar development shape of a wavy tile, and at the same time a draining cord is formed on the green sheet, and after this, this flat green sheet is cut into a wavy shape. A method for forming a wavy tile with draining cord, which is characterized by vacuum forming.