JPS59184606A - Correction mold for tile foundation in tile molding machine - 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 The present invention relates to a correction mold for correcting distortions in a tile base during the operation of removing the tile base from the mold after tile molding in a tile forming machine.

Generally, in the production of tiles, the material is continuously extruded from a clay machine, cut into pieces one by one, and then formed using a press or the like as shown in Figure 1 (a). The tile is removed from the mold, dried, and then fired. However, during the process of drying the tile base, as shown in Figure 1 (b), the tile base has distortions peculiar to the shape of the tile shadow (see the chain line). Therefore, it is necessary to correct the shape of the tile base before drying in anticipation of interposition after drying and firing.

However, in conventional work, in order to straighten the tile base after taking it out of the mold, it is placed on a straightening wooden mold called a tameshi wooden mold, and then manually molded using a hand press method or the like. The above-mentioned molded base material was automatically straightened using an automatic press device using a cam system, a crank system, or the like.

Therefore, in the conventional straightening method, regardless of the above-mentioned manual straightening or automatic straightening, a device for taking out the molded base material from the mold and a straightening device are required, which requires a large amount of equipment cost, and the work is divided into two parts: taking out and straightening. I was forced to go through the process.

Moreover, in the conventional take-out device Y, as shown in FIG. 2, for example, a means has been devised for directly suctioning and gripping the tile base material W using a large number of suction cups Ya; The suction of the tile base is not necessarily uniform, and suction failure may occur due to variations in suction force, etc., and the suction cup Ya may leave suction marks on the tile base W, and the surface gloss may be damaged, and the tile may not be as good. However, it had the disadvantage of lowering the product value.

The purpose of the present invention is to securely remove the tile base from the mold by providing a small hole that serves as a closed hollow suction chamber and uniformly attaching a breathable suction member to the bottom surface of the bottom plate. It is an object of the present invention to provide a tile base straightening type that can be gripped by suction and can correct distortion of the tile base at the same time as the suction, thereby solving the various drawbacks of the conventional tile base.

Hereinafter, the illustrated embodiment embodying the present invention will be described in detail in accordance with FIGS. ), that is, at a position where the dyed base material is pulled out from the molding machine body while still in the mold, it is assembled into a suction device (not shown).

Now, the base box 2 that constitutes the correction mold 1 consists of the bottom plate 2 a + top plate 2.
b. The four side plates 20 to 2C are assembled to form a hollow and sealed suction chamber 6, and the overall planar shape is the shape of the tile to be formed, for example as shown in Fig. 1 (a). The surface shape is almost the same as that of a tile. A communication hole 4 is provided in the upper plate 2b at approximately the center thereof, and the communication hole 4 is connected to the suction device via a flexible suction pipe P.

Next, the lower surface of the bottom plate 2a is basically formed in a shape that matches the surface shape of the tile to be molded, and is corrected in anticipation of distortions after drying and firing. In this example, with respect to the lower surface of the bottom plate 2a, the collar side is formed into a gentle convex arc shape as shown in FIG. 4, and the machine side is formed into a gentle concave arc shape as shown in FIG.

Further, a large number of small suction holes 5 to 5 are vertically provided through the bottom plate 2a at predetermined intervals. In addition, in this example, the bottom plate 2a is constructed by connecting several plate materials with a connecting tool S.

A suction member 6 having a desired thickness is uniformly adhered to the lower surface of the bottom plate 2a constituting the base box 2 with an adhesive or the like, and the suction member 6 is made of synthetic resin such as polyurethane foam or sponge rubber. It is made of a breathable and relatively elastic material.

Thus, the suction member 6 has the same shape as the lower surface of the bottom plate 2a. In addition, in the figure, W indicates the tile base material before drying.

Subsequently, the orthodontic mold 1 of this example was subjected to tflm as described above.
We will discuss the effects of

Now, the tile base W on the mold that has been colored in the tile forming machine
is pulled out from the molding machine while in the mold, and then taken out from the mold and subjected to the next drying process.Before this drying process, the tile base material W is subjected to an intermediate treatment after drying or after firing. Corrective work is carried out in anticipation of this.

Therefore, in this straightening work, the straightening mold 1 of this example is lowered by a desired means to the tile base W on the mold 1 drawn out from the molding machine, and the bottom plate 2a is sucked. The member 6 is brought into contact with the surface of the tile base W.

Thereafter, the tile base W is suctioned and held by suction by a suction device (not shown) and lifted, thereby correcting the distortion of the tile base W.

That is, in the straightening mold 1 in this example, the inside of the suction chamber 6 of the base box 2 becomes negative pressure due to the suction action of the suction device, and suction force is generated in the entire suction member 6 through the large number of small suction holes 5 to 5, and the tile base is This is a device that suctions and grips W, and uses the suction force of this suction member 6 to reliably suction and grip the tile base W, and at the same time, corrects distortions and forms it into a shape that takes into account distortions after drying and firing. It is something that can be done.

Although the straightening mold 1 in this example has been explained as being for use on the tile base of crosspiece tiles, it can also be used as a straightening mold for other tiles, and the strength of the adsorption force may need to be adjusted partially depending on the type and shape of the tile. In this case, the arrangement of the small suction holes may be adjusted accordingly.

As detailed above, the present invention communicates the inside of a sealed hollow base box with a suction means, and the lower surface of the bottom plate constituting the bottom of the base box has a shape that matches the surface shape of the base of the tile to be formed. Based on this, the shape is corrected in anticipation of distortion after drying and firing, and this bottom plate has a large number of small suction holes that communicate with the inside of the base box, as well as ventilation. This is a type of tile base straightening type used in a tile forming machine in which a suction member with a certain thickness is uniformly attached to the bottom surface of the bottom plate. This method has the great advantage of being able to reliably suction and grip the same tile base without leaving any adsorption disease on the base or damaging the surface luster, and also being able to correct distortion at the same time as this suction. This means that the straightening work that conventionally required two devices, a take-out device and a straightening device, can be done with a single straightening mold with a simple structure, which can significantly reduce equipment costs, and also and the straightening process can be accomplished in one process in an extremely efficient and simple manner.

Moreover, since the tile base straightened by the straightening die of the present invention is straightened in anticipation of distortions that occur during the drying and firing processes, a product without φ can be obtained after firing the tile, reducing the incidence of defective products. can be significantly reduced.

Therefore, the straightening mold according to the present invention can produce various remarkable effects as described above, and can be said to be indispensable for the production of roof tiles.

[Brief explanation of drawings]

tg1 (a) is a perspective view of the roof tile that should be completed.
B) is a perspective view showing the distorted state, FIG. 2 is a sectional view showing the main parts of a conventional take-out device, FIGS. 3 to 6 show an embodiment of the present invention, and FIG. 6 is a perspective view thereof. Figure 41 is a side view of the collar side, Figure 5 is a side view of the side, and Figure 6 is an enlarged sectional view of the main part. 1... Orthodontic type '2... Base box 2a...
・Bottom plate 6... Suction chambers 5-5... Small suction holes 6... Suction unit Yasuhito Murayama Attorney at Miyazono Seisakusho Co., Ltd. Patent attorney Doma 1) Hidehiko Figure 1 (B) Figure 2 3 diagram

Claims (1)

[Claims] The inside of the sealed hollow base box is communicated with the suction means, and the lower surface of the bottom plate forming the bottom of the base box is basically shaped to match the surface shape of the base of the tile to be formed. The bottom plate is formed into a shape that is corrected in anticipation of later distortion, and a large number of small suction holes are formed through the bottom plate so as to communicate with the inside of the base box, and the bottom plate is made with breathability and a desired thickness. A type for straightening a tile base in a tile forming machine, characterized in that an adsorption member is uniformly adhered to the lower surface of the bottom plate.