JPH08105694A - Rack member for baking tiles - Google Patents

Abstract

PURPOSE: To obtain a rack member for baking tiles which can support a large number of flat-plate-shaped tiles without deforming them and can make them with excellent heat efficiency. CONSTITUTION: On the upper side of a rack board 1, a large number of pins 2 are provided upright at intervals making it possible to hold tiles 10 at angles of 70 to 90 degrees to the rack board 1. The pins 2 may be independent laterally or integrated laterally. It is preferable that tile tilting parts 3 tilting the tiles in a prescribed direction are provided between the pins 2 in the longitudinal direction on the upper side of the rack board 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof tile firing shelf material suitable for firing a roof tile having a shape close to a flat plate such as a flat roof tile.

[0002]

2. Description of the Related Art Conventionally, for firing roof tiles such as flat roof tiles,
The sagger (H which is shown in Japanese Utility Model Publication No. 6-33000)
A type of sagger is used, and it is common to place tiles inside and stack them in multiple stages for flat firing, or to incline the H-shaped sagger about 55 degrees and place the tiles inside to perform an inclined firing. It was However, in such a conventional method, the weight of the sagger is larger than the weight of the roof tile to be fired, for example, 3.5: 6. Therefore, the heat capacity of the bowl is larger than the heat capacity of the roof tile, and there is a problem that the heat efficiency (fuel consumption) is poor.

Further, the applicant's actual utility model Sho 58-32159
As disclosed in Japanese Patent Publication No. JP-A-2003-264, there is also used a roof tile baking material in which a large number of comb-teeth-shaped supporting pieces for supporting roof tiles are formed on both side walls of a heat-resistant metal plate having a U-shaped cross section. However, since this tile firing shelf material is used by pressing it on the upper surface of an ordinary refractory shelf board, its overall heat capacity is still large, although not as great as when using a sagger, After all, there was a problem that the thermal efficiency was poor, and that it was a metal and thus had a short life due to high temperature oxidation.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and supports a large number of flat-plate roof tiles without deforming them, and makes it possible to thermally heat the roof tile material. It is made for the purpose of providing.

[0005]

Means for Solving the Problems A shelf material for roof tile firing according to the present invention made to solve the above problems is provided on an upper surface of a shelf board.
It is characterized in that a large number of pins are erected at intervals so that the roof tiles can be held at an angle of 70 to 90 degrees with respect to the shelf board. The above-mentioned pins may be provided as a pair standing upright on the left and right of the shelf plate, or may be integrated by connecting left and right upright portions of the shelf plate. In addition, it is preferable to provide a roof tile inclining portion for inclining the roof tile in a certain direction on a portion between the pins in the front-rear direction on the upper surface of the shelf board. The front-back direction means the longitudinal direction of the shelf board.

[0006]

The shelving material for roof tile firing of the present invention has a light weight pin erected on the upper surface of the shelf plate, so that it has a small heat capacity and can be fired with high thermal efficiency. Further, the roof tiles for roof tile firing of the present invention, since the roof tiles are fired while being held at an angle of 70 to 90 degrees with respect to the shelf plate by the pins, the roof tiles are less deformed during firing as compared with the inclined firing, and There is an advantage that the number of sheets that can be fired per area is larger than that of the conventional method, compared with the case of flat firing. In addition, if the roof tile is inclined in a certain direction by providing the roof tile inclined portion on the upper surface of the shelf plate between the pins in the front-rear direction, there is an advantage that the glaze surface can be prevented from adhering to the pin.

[0007]

The present invention will be described below in more detail with reference to the illustrated embodiments. 1 to 3 show a first embodiment of the present invention, in which 1 is a refractory shelf plate similar to that conventionally used, and 2 is a fixed interval on the upper surface of this shelf plate 1. A number of refractory pins erected in. The shelf 1 is made of cordierite, alumina, alumina / silica,
The pin 2 is made of a refractory material such as mullite, and the pin 2 is made of, for example, alumina porcelain or mullite porcelain because strength is required. The pin 2 can also be made of refractory metal.

In this embodiment, square holes 6 that are slightly inclined so that the upper surface is wide are formed at regular intervals on the left and right sides of the shelf 1, and the lower ends of the pins 2 having a square cross section are formed in the square holes 6. Has been inserted. The pin 2 may have a rod shape such as a cylinder or a prism, but it is preferable that the contact surface with the roof tile is a flat surface. The thickness of the pin 2 is not particularly limited, but the upper end is preferably thin. Pin 2 in the embodiment
The angle formed by the side surface of the with respect to the upper surface of the shelf board 1 is about 86 degrees. Therefore, when the roof tile 10 is erected so as to be in close contact with the side surface of the pin 2, the angle formed by the roof tile 10 with respect to the upper surface of the shelf plate 1 is 86 degrees. Further, since the roof tile 10 is often supplied by an automatic machine, there is a possibility that the roof tile 10 may be displaced until the lower end of the roof tile 10 comes into contact with the adjacent pin 2 in the front-rear direction, as shown in FIG. However, even in this case, the distance between the pins 2 and 2 in the front-back direction is set so that the angle of the roof tile 10 does not become less than 70 degrees.

Since the angle of the roof tile 10 with respect to the upper surface of the shelf board 1 is 70 degrees or more in this way, it is possible to prevent the upper portion of the roof tile 10 from being deformed during firing, and per unit area. The number of fired tiles 10 can be increased. In addition,
In order to prevent the roof tile 10 from being deformed during firing, the pin 2 needs to have a certain length, which is at least ⅓ or more, preferably ½ or more of the height of the roof tile 10. In the example of FIG. 1, the length of the pin 2 is 3/5 of the height of the roof tile 10.

By the way, since the glaze layer 11 is formed on one surface of the roof tile 10, it is necessary to contact the roof tile 10 and the pin 2 on the opposite surface of the glaze layer 11 as shown in the figure. However, as described above, since the roof tile 10 is often supplied by an automatic machine, if the top surface of the shelf board 1 is flat, the roof tile 10 may be inclined toward the glaze layer 11. So shelf 1
It is preferable to provide a roof tile inclined portion 3 for inclining the roof tile 10 in a fixed direction in a portion between the pins 2 in the front-rear direction on the upper surface of the roof tile 10. The roof tile inclined portion 3 may be provided integrally with the shelf board 1, may be formed separately from the shelf board 1, and may be placed in a state of being joined between the pins 2 and 2 in the front-rear direction, or may be provided simply in a state of being placed. May be. In the example of FIG. 4, the roof tile inclined portion 3 is a ridge, and the bottom surface of the roof tile 10 placed thereon is pushed up to incline, but the top surface of the shelf board 1 may be an inclined surface as shown in FIG. Further, the roof tile inclined portion 3 may be provided in a spot on the peripheral portion of the pin 2 or may be provided over the entire width direction.

6 to 7 show a second embodiment of the present invention. In the first embodiment, the pair of pins 2 and 2 are erected in pairs on the left and right of the shelf board 1 to stably support both the left and right sides of the roof tile 10. In the embodiment, these two pins are integrated. That is, the left and right upright portions 4, 4 are connected by the horizontal portions 5, 5 to form an integrated pin 2. When the independent pin 2 is used as in the first embodiment, the roof tile 10 may be supported by only one pin 2 when the left and right pins 2, 2 are displaced. On the other hand, according to the second embodiment, since the upright portions 4 and 4 on both sides are not likely to be displaced, the roof tile 10 can always be stably supported on both left and right sides. Also in this second embodiment, the roof tile 1 is provided with the roof tile inclined portion 3.

[0012]

As is apparent from the above description of the embodiments, the roof tile firing shelf material of the present invention is one in which a large number of pins are erected on the upper surface of the shelf plate, and the heat capacity of the pins is extremely small. Therefore, flat roof tiles and other flat roof tiles can be fired with good thermal efficiency. In addition, the pin spacing is such that the roof tiles can be held at an angle of 70 to 90 degrees with respect to the shelf plate, so it is possible to prevent the roof tiles from deforming during firing, and to reduce the number of fired tiles per area in the past. Can be increased more than.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a first embodiment.

FIG. 2 is a plan view showing a first embodiment.

FIG. 3 is a side view showing the first embodiment.

FIG. 4 is a vertical cross-sectional view showing an example of a roof tile sloping portion in the first embodiment.

FIG. 5 is a vertical sectional view showing another example of the roof tile inclined portion in the first embodiment.

FIG. 6 is a vertical sectional view showing a second embodiment of the present invention.

FIG. 7 is a side view showing a second embodiment of the present invention.

[Explanation of symbols]

1 Shelf board, 2 pins, 3 tile inclined part, 4 pin upright part, 5 pin horizontal part, hexagonal hole, 10 tile, 11 glaze surface

Claims (4)

[Claims] 1. A roof tile on the upper surface of the shelf board is 70-90 with respect to the shelf board.
Shelf material for roof tile firing, which has a large number of pins set up at intervals that can be held at an angle of degrees. 2. The shelf material for tile roof firing according to claim 1, wherein the pins are erected in pairs on the left and right sides of the shelf plate. 3. The roof tile firing shelf material according to claim 1, wherein the pins are integrated by connecting right and left upright portions. 4. The roof tile firing shelf material according to claim 1, wherein a roof tile inclining portion for inclining the roof tile in a fixed direction is provided in a portion between the pins in the front-rear direction on the upper surface of the shelf board.