JPS6241776Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a corner tile molding apparatus which is capable of uniform pressure molding in the molding of corner tiles having a square cross section.

Conventionally, in the molding of such corner tiles, a pair of piece members a and b each having a square-shaped molding surface corresponding to both the front and back sides of the molded product are arranged so that the front and back molding surfaces are vertically opposed to each other, as shown in FIG. After filling the powder material into the lower piece a, the powder material is compressed and molded by the upper piece b.
Due to the slope of the molding surface of the piece member a, when filling the upper surface with the powder raw material, it is not possible to uniformly fill the powder raw material in a cross-shaped shape along the molding surface, resulting in uneven density of the molded product. This may cause deformation, etc., and the pressure applied to the ears c at both ends of the molded product may be insufficient. Therefore, when molding, set the length of both sides longer than the specified dimension and cut off the excess after molding. However, the molding operation is very time-consuming, and it also has various disadvantages, such as requiring mechanical equipment such as a cutting machine and a place to store the molded product for drying until the cutting operation. Ta.

In view of these drawbacks, the present invention provides a corner tile molding apparatus in which a powder raw material is compressed between a pair of piece members each having a square-shaped molding surface that corresponds to both the front and back sides of a molded product having a square cross-section. , a pair of piece members are arranged left and right oppositely in the formwork so that the cavities are arranged in a cross-shaped shape when viewed from the plane, and shielding plates are provided at the upper and lower positions of the piece members to close the upper and lower opening surfaces of the cavities. In order to solve the above-mentioned drawbacks, we have provided a corner tile molding device in which one piece member is connected to a pressurizing device to control left and right movement within the formwork, and the following is provided. An embodiment of the present invention will be described based on the drawings. 1 is a main body of a molding device for molding a corner tile molded product T having a square cross section, and a formwork corresponding to the height and width of the molded product T. 2 is installed horizontally, and a pair of piece members 5 and 6 are formed in the formwork 2 with square-shaped molding surfaces 3 and 4 corresponding to both the front and back sides of the molded product T, as seen from the planar direction. 7 are arranged in a cross-shaped manner, and are fitted into the formwork 2 so that they are left and right opposite to each other, one piece member 5 is fixedly supported to the formwork 2, and the other piece member 6 is fitted inside the formwork 2. It is configured so that it can be guided and supported so that it can slide left and right.

8 is a pressurizing device, which allows a rod 10 of a pressurizing cylinder 9 disposed on the right side of the formwork 2 to be inserted into the formwork 2 through a side plate 11 of the formwork 2, and is connected to the piece member 6; The bridge member 6 is controlled to advance and retreat to the left and right by the action of the pressurizing cylinder 9.

Reference numeral 12 denotes a powder raw material supply device, in which a powder bowl 14 to which powder raw material M is supplied along the reference plane 13 on the upper surface of the formwork 2 and piece members 5 and 6 is arranged so as to be movable forward and backward, and is installed at the rear left side. The rod 16 of the transferred transfer cylinder 15 is connected to the powder container 14, and the powder container 14 is moved by the action of the transfer cylinder 15.
The movement is controlled from the outside of the formwork 2 to the upper part of the cavity 7.

In addition, a shielding plate 17 is disposed above the bridge members 5 and 6, and a rod 19 of a presser cylinder 18 is connected to the shielding plate 17 to control the raising and lowering of the shielding plate 17, thereby opening and closing the upper surface of the cavity 7. It is designed to make you operate it.

On the other hand, below the bridge members 5 and 6, a shielding plate 21 is disposed that slides forward and backward along the lower surfaces of the bridge members 5 and 6 and has an opening 20 corresponding to the cavity 7. A rod 23 of the cylinder 22 is connected to the operating cylinder 22 so that the shielding plate 21 can be opened and closed with respect to the lower surface of the cavity 7.

Reference numeral 24 denotes a device for taking out the molded product T, in which a square-shaped extrusion member 25 corresponding to the cavity 7 is disposed at a position facing downward from the cavity 7, and a rod of a knock cylinder 26 is disposed perpendicularly to the extrusion member 25. 27 are connected to each other so that the extrusion member 25 can be controlled to move up and down into the cavity 7 from the lower outside.

Next, to explain the operation of the corner tile molding apparatus according to the present invention, first, when the piece member 6 is in the retreated position and the lower surface of the cavity 7 is closed with the shielding plate 21, the powder raw material supplying device As the transfer cylinder 15 of 12 operates, the powder bowl 14 moves above the cavity 7, and the powder raw material M is filled into the cavity 7 as shown in FIG. After returning to normal state, the holding cylinder 18 is operated and the upper surface of the cavity 7 is closed with the shielding plate 17.

From this state, the pressurizing cylinder 9 is actuated to move the bridge member 6 to the left, and as shown in FIG. The powder raw material M is compression molded at
As shown in FIG. 5, the rear piece member 6 moves back slightly to release the pressurizing action, and at the same time, the upper shielding plate 17 moves upward to open the upper surface of the cavity 7, and the lower shielding plate 21 slides to a position where the opening 20 faces the lower surface of the cavity 7 by actuation of the operation cylinder 22, and then the knock cylinder 26 is actuated to move the extrusion member 25, which was waiting at a position facing downward from the cavity 7, to move upward. Then, the molded product T enters the cavity 7 and is compression-molded thereby being pushed upward from the inside of the bridge members 5 and 6 by the extrusion member 25.

In short, the present invention provides a corner tile molding device in which a powder raw material is compressed between a pair of piece members each having a square-shaped molded product on both sides of a square-shaped molded product. Piece member 5,
Since the cavities 7 are arranged in a cross-shaped manner when viewed from the plane, and are placed facing each other on the left and right inside the mold 2, the powder raw material M can be aligned with the molding surface as in the conventional vertically facing type. There is no need to fill the cavity 7 in an inclined manner, and since the cavity 7 is formed as a space in the vertical vertical direction, the powder raw material M can be uniformly filled by simply feeding it from above according to the usual means. , 6 is located above and below the cavity 7.
Shielding plates 17 and 21 are disposed to close the upper and lower opening surfaces of the cavity 7, and one piece member 6 is connected to the pressurizing device 8 to control left and right movement within the formwork 2. Because it can be compression molded with both left and right sides closed,
Coupled with uniform filling of the powder raw material M, the powder raw material M in the cavity 7 can be compressed evenly to obtain a homogeneous molded product T, and therefore, unlike the conventional method, no pressure is applied. Practical effects such as being able to mold corner tiles easily and at low cost without requiring operations such as cutting the ears at both ends of the molded product T, and improving quality. It's huge.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention.
The figure is a cross-sectional view of the corner tile molding apparatus according to the present invention, FIG. 2 is a plan view of the same as above, FIGS. FIG. 7 is a diagram showing a conventional example. 2... Formwork, 5, 6... Piece member, 7... Cavity, 8... Pressure device, 17, 21... Shielding plate.

Claims (1)

[Scope of utility model registration request] In a corner tile molding device in which a powder raw material is compressed between a pair of piece members having round-shaped molding surfaces corresponding to both the front and back sides of a molded product having a round-shaped cross section, the pair of piece members are moved in the plane direction. The cavities are disposed in the formwork so that they are arranged in a cross-shaped manner when viewed from above, and shielding plates are provided at the upper and lower positions of the piece members to close the upper and lower opening surfaces of the cavities. A corner tile molding device characterized in that the members are connected to a pressure device to control left and right movement within the formwork.