JPS5848560Y2 - Spacer comb teeth for tile firing - Google Patents

Description

[Detailed description of the invention] This invention prevents the upper parts of the tiles from coming into contact and sticking together due to the vibrations of the cart on which the tiles are loaded, when tiles are lined up in parallel at intervals in the thickness direction and fired. This invention relates to a tile holder for preventing

Conventionally, when firing flat objects such as roof tiles, a common method is to use a tunnel furnace, on which refractory bricks called shelf boards are placed at several power intervals in the longitudinal direction. The following loading method was used to load as much material to be fired as possible on the tile and to minimize the distortion of tiles at high temperatures.

A clay strip called Kumiage is laid on a shelf board, and the tile materials are arranged in parallel at appropriate intervals in the thickness direction on top of this. Similar assemblies were placed on top of the tiles to prevent tile materials from falling over and sticking together due to contact with each other.

However, since the ``assembly'' method is made of clay, it is not sufficient, and the tiles often tilt due to shrinkage and cracks during high-temperature firing, and often fall over due to vibrations and shocks when moving the trolley. In addition to the decline in clay production, there has been a recent depletion of clay and pollution problems caused by the mass disposal of defective products, and improvements have been desired.

Recently, attempts have been made to drill round holes in the shelf boards and place ceramic or heat-resistant steel bottles in these holes, and to place holding frames on the shelf boards.These jigs were devised, but Nowadays, when automatic loading is required, it is very difficult to carry out actual work using such a jig, and the automatic loading device itself is required to have a complicated structure.

It was extremely difficult to advance automation in this way.

In response to this, the present inventors devised a spacer comb made of heat-resistant material, which is necessary to advance automation, and by fitting the spacer comb into the upper notch where the tiles are lined up, the tiles can be prevented from adhering and falling. Although attempts were made to prevent this, this spacer comb had the disadvantage that the glaze adhered to the base of the protrusion of the spacer comb during high-temperature firing, causing damage to the tiles.

This invention allows for easy automatic loading during tile firing, and minimizes the area that comes into contact with the glaze to prevent adhesion and damage at the base of the protrusions of the spacer comb teeth during high-temperature firing, which prevents adhesion and prevents tiles from sticking. To provide spacer comb teeth for dead firing which can be fired without any damage.

The present invention consists of a protrusion and a connecting part that connects the protrusions when the tiles are arranged in parallel at intervals in the thickness direction and fired. In the spacer comb tooth for dead firing, which is inserted into the spacer and is supported in contact with the end surface of the upper part of the tile, the spacer comb teeth are made of heat-resistant steel, and the joint part between the protrusions is in contact with the end face of the upper part of the tile, and the said protrusion This spacer comb tooth for dead firing is provided with smaller and lower small protrusions to prevent contact between a part of the corner formed by the shaft and the protrusion and the upper end surface of the tile.

This spacer comb tooth for dead firing is made of heat-resistant steel, and if it is made of cast steel, glaze will not adhere to it and its strength will be high.

Furthermore, the shape of a punched product can be easily modified. The present invention will be explained below with reference to drawings of embodiments.

Figures 1A and B are a front view and a side view, respectively, of a spacer for dead firing according to an embodiment of the present invention, and Figures 2A, BA and C are views of the spacer used when it is attached to the notch at the top of a flat tile. FIG. 3A is a side view, a front view, and a top view of an example, respectively.

In Fig. 1, the spacer comb tooth a of the present invention consists of a protrusion 1 to be inserted into the interval between tiles arranged in parallel, and a connecting part connecting the protrusions. A small protrusion 2 smaller and lower than the protrusion 1 is provided at the connecting portion.

In Fig. 2, the spacer comb teeth a of the present invention are placed in the upper notches of the flat tiles arranged in parallel at intervals in the thickness direction on the shelf board C, and the protrusions 1 of the tiles are placed in the upper notches. The small protrusions 2 are supported in contact with the upper end surface of the notch of the tile.

The protrusions 1 maintain the spacing between tiles, and the protrusions 1 are connected at connecting portions to prevent the entire series of tiles from falling down into a parallelogram shape in the thickness direction.

As can be seen from Fig. 2B, the spacer comb teeth a of the present invention have fewer contact areas with the roof tiles due to the provision of the small protrusions 2, and in particular, there is less contact between the protrusion 1 and the connection area where the glaze is thick and easily adheres. This prevents contact with the concave portions that form the corners, and prevents fusion due to the glaze.

Therefore, the spacer comb teeth of the present invention are less likely to cause damage to tiles due to welding, and because the spacer is not forcibly separated by impact or the like, there is less reduction in life due to deformation or the like.

Note that the shape of the small protrusion 2 is not limited to the one shown in the embodiment, and may be triangular, round, or square with a flat tip, and is not particularly limited in shape.

As explained above, the present invention replaces the conventional "assembly" process during tile firing by providing small protrusions in the middle of large comb-like protrusions made of heat-resistant steel with regular intervals, as shown in Figure 1A. By inserting spacer comb teeth for dead firing into the top edge or upper notch of tiles arranged in parallel, it is possible to easily prevent tiles from colliding and falling over during the firing of tiles, and to automate the loading of tiles onto carts. It becomes possible and contributes to the power of omission.

In particular, the spacer comb teeth of this invention are compared to conventional ones,
Providing the small protrusions 2 shown in Figure 1A prevents glaze from adhering to the spacer comb teeth and prevents scratches on the tile.In addition, even if glaze accidentally adheres to the comb teeth or protrusions, the comb may be removed during cooling after firing. By tapping the teeth lightly, the glass-like glaze adhering to the comb teeth via scale can be easily removed, and even if the spacer comb teeth are slightly bent under high temperatures, it can be corrected.

In addition, this spacer comb tooth can withstand use several dozen times and has a long life.

[Brief explanation of drawings]

FIGS. 1A and 1B are a front view and a side view, respectively, of the spacer comb teeth for dead firing of the present invention. 2A, B, and C are a side view, a front view, and a plan view, respectively, showing examples of the spacer comb teeth for dead firing of the present invention. DESCRIPTION OF SYMBOLS 1... Protrusion, 2... Small protrusion, a... Spacer comb tooth for dead firing of this invention, b... Tile, C... Shelf brick.

Claims (1)

[Scope of utility model registration request] When firing a large number of tiles, which are objects to be fired, arranged in parallel at intervals in the thickness direction of the tiles, a protrusion inserted into the upper part within the interval between the tiles and a projection part spaced apart in the thickness direction of the tiles is fired. The spacer comb tooth for dead firing is made of heat-resistant steel and is made of heat-resistant steel, and has a connecting part that connects the protrusions in contact with the end surface of the upper part of the tile. A spacer for dead firing characterized in that a small protrusion smaller and lower than the protrusion is provided to prevent the connecting part and a part of the corner formed by the connecting part and the protruding part from coming into contact with the end surface of the upper part of the tile. Comb teeth.