JPH0430013Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a tile in the form of a plate-shaped body bent at a right angle at a predetermined part, that is, an accessory with a main body and a bent part bent from one end. This invention relates to a tile forming device.

(Prior Art) A conventionally used apparatus for forming this kind of accessory tile is shown in FIG. 4. This molding apparatus has an upper mold 100, a lower mold 102, and a frame mold 104, and a V-shaped cavity formed by these molds is filled with a powdered tile base material to form an upper and lower mold 100. , 102, the powder raw material is compressed under pressure, thereby forming an accessory tile having a main body portion 108 and a bent portion 106 into a V-shaped inclined position.

However, when the accessory tile is molded in such a V-shaped manner, the packing density of the powder raw material at both ends is different from that at other parts. For this reason, in conventional molding equipment, both the main body part 108 and the bent part 106 are molded longer than the actual product, that is, cut-off parts 114 and 116 are provided, and these pick-up parts 114 and 116 are cut off after molding. and then remove it from the molded body.

However, if a part of the molded body is cut off, material loss will naturally increase, and an additional process of cutting the molded body will be required, complicating the manufacturing process. In addition, since the compact contains 7 to 8% moisture, it is necessary to dry the compact before cutting, which requires a furnace, heat energy, and drying process. It also requires time.
If the molded product contains moisture, cutting tools such as grindstones will become clogged and the molded product cannot be cut cleanly.
For this reason, a drying process is required as a pre-process.

On the other hand, as shown in FIG. 5, it is also conceivable to form a horizontal L-shaped cavity with an upper die 110, a lower die 112, and a frame die 104 to form the powder raw material in a horizontal position. In this way, the packing density of the powder raw material at the end of the molded product will not differ, and therefore the molded product can be molded all at once without having to cut off the waste portion as described above. It becomes possible to do so.

By the way, in this molding apparatus, when the frame mold 104 is moved downward relative to the lower mold 112 in order to take out the molded object from the mold, the frame mold 104 touches the outer surface (surface) of the bent part 106 of the molded object. There is a risk that the surface of the molded product will be damaged.

(Means for solving the problem) The molding device of the present invention was devised to solve the above problem, and its gist is that it uses a frame mold and an upper and lower part inside the frame mold. It has an upper mold and a lower mold that face each other, and the cavity formed by these molds is filled with a powdered tile base material, and a pressurizing force is applied based on the relative approach of the upper mold and the lower mold. The powder raw material is compressed to form an accessory tile having a main body portion and a bent portion bent at one end thereof, with the main body portion being horizontal and the bent portion rising upward; The molding device is configured to take out the molded product by moving the frame mold downward relative to the lower mold after opening the upper mold and the lower mold, wherein the molding surface for molding the outer surface of the bent portion is The auxiliary mold provided is placed on the lower mold in contact with the inner surface of the frame, and when the auxiliary mold is used as a part of the mold and the frame is moved downward to remove the molded object, the auxiliary mold is placed on the lower mold in contact with the inner surface of the frame. This is because the frame mold is made to slide against the mold.

(Function) The device of the present invention forms accessory tiles in a horizontal position. That is, the main body portion is oriented horizontally and the bent portion is oriented vertically. Therefore, the molded article can be molded all at once without providing the above-mentioned waste portion and cutting it out later.

In addition, the present invention uses an auxiliary mold to mold the surface of the vertically extending bent portion, and when taking out the molded product, the frame mold is slid against this auxiliary mold, so that the molded product can be easily removed. There is no fear that the frame will scratch the surface of the bent part when taking it out, and the surface of the molded product can be molded into a clean surface. Therefore, after demolding the molded product, there is no need for processing to cleanly finish the scratches on the surface of the molded product.

(Example) Next, the present invention will be described as an L-shaped tile 14 as shown in FIG. An embodiment in which the present invention is applied to an apparatus for molding object tiles 14 will be described in detail based on the drawings.

1 to 3 show the structure of the molding apparatus. In these figures, 16 is a frame type,
It can be raised and lowered by a lifting device (not shown). 18 and 20 are an upper mold and a lower mold that face each other vertically inside this frame mold 16, and this upper mold 18
The powdered tile base raw material 30 is compressed and molded by the pressing force based on the downward movement of the tile base material 30 . The upper mold 18 includes a molding surface 21 for molding the inner surface of the main body portion 10 of the tile 14, and a molding surface 22 for molding the end surface and inner surface of the bent portion 12.

Reference numeral 24 is an L-shaped auxiliary mold, which is placed on the lower mold 20 in contact with the opposing inner surfaces of the frame mold 16. The auxiliary mold 24 of the main body is provided with molding surfaces 26 and 28 for molding the entire outer surface (surface) of the main body portion 10 and the bent portion 12 of the tile 14 inside thereof. Therefore, in this example, this auxiliary mold 24 can also be considered as the lower mold itself. Of course, it is also possible to change the structure of the auxiliary mold so that only a part of the surface of the tile is formed by the auxiliary mold.

Next, the procedure for molding the tiles 14 using this molding apparatus will be explained.

As shown in FIG. 1, the upper mold 18 is raised and the frame mold 16 is raised to the position shown by the solid line in the figure, and the powder raw material 30 is filled into the cavity of the mold. Subsequently, as shown in FIG.
Form into. Next, as shown in FIG.
is raised, and at the same time, the frame mold 16 is lowered to a position where its upper end is at the same position as or below the lower surface of the molded body (tile 14). Then, the molded tile 14 is taken out. At this time, the tile 14 may be shifted to the right as indicated by the arrow in FIG. 3 and taken out, or the auxiliary mold 24 may be taken out together.

In this way, in the forming apparatus of this example, the outer surface (surface) of the bent portion 12 of the tile 14 is formed by the auxiliary mold 24.
It is not molded by the frame mold 16. Therefore, when the frame 16 is lowered to take out the molded tile 14, the frame 16 does not come into sliding contact with the surface of the folded portion 12, causing damage to the surface of the tile folded portion 12. It doesn't even get attached. Although the frame mold 16 comes into sliding contact with the right end surface of the main body portion 10, this surface does not appear on the surface in the tile construction state, so there is no problem.

Although the embodiments of the present invention have been described in detail above, the present invention can also be configured in other ways. For example, in the above example, the upper mold is raised and lowered, but it is also possible to compression mold the powder raw material by raising and lowering the lower mold, or by raising and lowering both the upper and lower molds. It is also possible to mold and take out tiles by keeping the mold fixed and moving the lower mold up and down.

Furthermore, the shape of the tile shown above is just one example of the present invention, and the present invention can be applied to various other shapes of accessory tiles, and can be similarly applied to various other shapes of auxiliary tiles. The present invention can be constructed with various modifications without departing from the spirit thereof, such as the use of a single type or a combination of multiple types.

(Effects of the invention) As described above, the present invention molds the accessory tile in a horizontal position using an auxiliary mold, and when taking out the molded tile, the frame mold is moved relative to the auxiliary mold. This is what I did.

As a result, the accessory tiles can be molded all at once, simplifying the tile molding process, and when the molded tiles are taken out, the tile surface is not rubbed by the frame mold, allowing the tiles to be molded neatly.

[Brief explanation of the drawing]

1, 2, and 3 are front cross-sectional views showing a molding device which is an embodiment of the present invention in different operating states, and FIG. 4 is an example of a conventional molding device for accessory tiles. FIG. FIG. 5 is a front sectional view of another possible molding device for accessory tiles. 10... Main body part, 12... Bent part, 14...
Accessory tiles, 16... Frame type, 18... Upper type, 20
... lower mold, 24 ... auxiliary mold, 26, 28 ... molding surface.

Claims (1)

[Claims for Utility Model Registration] A method comprising a frame, and upper and lower molds that face each other vertically inside the frame, and a powder tile base material is placed in the void formed by these molds. The powder raw material is filled and compressed by pressure based on the relative proximity of the upper mold and the lower mold, thereby forming an accessory tile having a main body part and a bent part bent at one end thereof. Molding is carried out in such a way that the main body is horizontal and the bent part rises upward, and after opening the upper and lower molds, the frame mold is moved downward relative to the lower mold to take out the molded product. In the molding apparatus, an auxiliary mold having a molding surface for molding the outer surface of the bent portion is placed on the lower mold in contact with the inner surface of the frame mold, and the auxiliary mold is placed on a part of the mold. A molding apparatus for accessory tiles, characterized in that the frame is slid against the auxiliary mold when the frame is moved downward for demolding the molded object.