JPH0230843B2 - MAGARITAIRUNOSEIKEISOCHI - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION Field of Industrial Application The present invention relates to a device for forming curved tiles with two bent planes used for corners of buildings.

BACKGROUND TECHNOLOGY Conventionally, in order to compression mold a curved tile whose two planes are bent approximately 90 degrees to 135 degrees using a powder raw material, a lower mold having a V-shaped concave molding surface is used as shown in FIG. The powder raw material filled in the lower mold a is compression-molded between the upper mold a and the upper mold b having a corresponding V-shaped protruding molding surface. Due to the slope of the molding surface, the powder material tends to slide down, making it impossible to fill the powder material uniformly, resulting in uneven density of the molded product, causing deformation, etc. In part c, the pressure was particularly insufficient, so during molding, the length of both pieces was set longer than the specified dimension, and after molding, the excess was cut off as shown in Figure 8. However, it has various disadvantages, such as a large loss of raw materials and the need for mechanical equipment such as a cutting machine and a place to store the molded products for drying until the cutting operation.

Therefore, in order to eliminate such drawbacks, the applicant of the present application has applied for a method for forming refractive tiles as described in Japanese Patent Application Laid-Open No. 147311/1982, and such method is illustrated in FIGS. 9 and 10. A fixed lower mold A having a narrow molding surface as shown in FIG.
and the mold frame C surrounding the movable lower mold B, and the movable lower mold B
It consists of an upper mold D with a step-shaped notch in the molding surface facing the molding surface of the fixed lower mold A on one side edge of a flat molding surface facing opposite to the molding surface of the lower mold A, with one end hanging down as shown in FIG. After filling the cavity bent in the shape of a shape, in the process of lowering the upper die D to compress the powder raw material, the moving lower die B is moved by the downward pressure of the upper die D, as shown in FIG. The powder material is formed into a right-angled shape with one of the refracting planes erected by lowering the material, thereby achieving uniform filling and compression of the material.

However, although the above method made it possible to uniformly fill and compress the raw materials, recently, in order to improve the decorative effect of the tiles, it has become possible to add uneven patterns to the tile surface, and to use powder raw materials of different colors in patterns. When molding such products, there are many requests for products that are placed on the mold.In the above method, one plane of the molded product is in perpendicular contact with the mold frame C, and this vertical plane is rubbed when the mold is released, resulting in an uneven pattern. Moreover, since the surface side of the molded product is located on the side of the fixed lower mold A and the movable lower mold B, it is not possible to pattern the surface with multicolored powder, and furthermore, the surface side of the molded product cannot be patterned with multicolored powder. Since streaks are formed at the corners of the two planes at the boundary between the fixed lower mold A and the mold frame C, this method has disadvantages such as the need for correction after molding.

Problems to be Solved by the Invention The present invention, in molding a curved tile having two bent planes, releases the upper mold after compression molding in the vertical and horizontal directions at the same time to make the compressed density uniform and bend the tile. To provide a curved tile molding device which prevents the occurrence of streaks at the boundary between the corners of two sides and forms a larger roughened pattern on the surface of a tile base T.

[Structure of the invention]

Means for Solving the Problems In view of the above, the present invention is a molding device for a tile base having two bent planes, in which a vertical molding surface corresponding to one of the two planes on the front side of the tile base is vertically formed. The surface is arranged so as to be inclined outward by a predetermined angle as it goes downward, and correspondingly, the structural surface forming the other plane is arranged to be inclined downwardly by a predetermined angle as it goes outward with respect to the horizontal plane. , and an upper mold having a rake angle at the outer lower end of the leg;
A spring and a stopper are provided below the upper mold mounting plate to allow the upper mold to slide slightly relative to the upper mold mounting plate, and a back side facing the horizontal molding surface of the upper mold. A movable lower mold having a molding surface, a fixed lower mold provided adjacent to the movable lower mold and having an end molding surface corresponding to the end surface of the vertical molding surface, and an upper mold provided adjacent to the fixed lower mold. A sinking lower mold that holds the end face of the cavity until the vertical molding surface of the mold is lowered and moves downwardly to the upper mold, a mold frame that surrounds the fixed lower mold, the movable lower mold, and the sinking lower mold, and the mold. Those consisting of a dusting device that is controlled to move forward and backward onto the cavity along the top surface of the frame, those in which uneven patterns are formed on the vertical and horizontal molding surfaces of the upper mold, and those in which the dusting device is attached to the mold. It is an object of this invention to solve the above-mentioned drawbacks by providing a molding device for curved tiles, which is arranged so as to be able to adjust its angle in accordance with the upper surface of the frame.

Function The present invention simultaneously releases the upper mold after compression molding in the vertical direction and the horizontal direction.

Embodiment An embodiment of the present invention will be described below based on the drawings. 1 is a main body of a curved tile molding device, and a stepped hole 3 is formed in an upper die mounting plate 2 that is vertically controlled by hydraulic pressure or the like. At the same time, a screw hole 5 is provided on the upper surface of the upper mold 4, and a bolt 7 having a stepped socket 6 having a smaller diameter than the stepped hole 3 is fitted into the screw hole 5 from the stepped hole 3, and screwed. Upper mold mounting plate 2 and upper mold 4
The upper mold 4 is attached to the upper mold mounting plate 2 so as to be slightly slidable with a slight gap between the support plates 8 and 9 below the upper mold mounting plate 2 and on the sides of the upper mold 4. A spring 10 and a stopper 11 are attached to the support plates 8 and 9 to allow the upper die 4 to come into contact with the upper die 4.

Further, a leg portion 12 is integrally formed on the lower surface of the upper mold 4 with one end projecting downwardly, and a rake angle 13 is provided at the outer lower end of the leg portion 12, and the surface of the tile base T is provided on the inner surface. A vertical molding surface 14 of a small area corresponding to one of the two side planes is formed so as to be inclined outward at a predetermined angle as it goes downwards with respect to the vertical surface, and an upper mold is formed continuously from the vertical molding surface 14. On the lower surface of 4, a large-area horizontal molding surface 15 corresponding to the other plane of the tile base T is arranged so as to be inclined downward at a predetermined angle as it goes outward with respect to the horizontal surface, corresponding to the inclination angle of the vertical molding surface 14. In addition, the surface side of the tile base T is formed so as to be molded continuously using a vertical molding surface 14 and a horizontal molding surface 15.

Further, the vertical molding surface 14 and the horizontal molding surface 15 of the upper mold 4 are provided with appropriate uneven patterns 16, 16a, respectively, as necessary.
... may be formed, in which case the vertical molding surface 14
The inclination angle is set appropriately so that the uneven patterns 16, 16a, . . . do not become undercuts when the upper die 4 is raised and horizontally released.

Further, a movable lower mold 18 having a back molding surface 17 formed in a predetermined slope in correspondence with the horizontal molding surface 15 of the upper mold 4 on the back surface of the tile base T is disposed at a position facing below the upper mold 4. Along with this, the movable lower mold 18
The vertical movement is controlled by a cylinder 20 via a base plate 19.

21 is a fixed lower mold disposed adjacent to the movable lower mold 18, and the upper surface of the fixed lower mold 21 has an end molding surface 22 corresponding to the end of the vertical molding surface 14 and the opposite surface on the back side. A bridge member 24 for abutting and regulating the lowering position of the movable lower mold 18 is disposed on the fixed substrate 23 that supports the fixed lower mold 21. The bridge member 24 regulates the lowering position of the movable lower mold 18. In this state, the back molding surface 17 and the end molding surface 22 are made to continue.

Furthermore, a vertical molding surface 14 is located adjacent to the fixed lower mold 21.
A sinking lower mold 26 having a vertical wall surface 25 that temporarily corresponds to the vertical wall surface 25 is disposed so as to be movable up and down so as to correspond to the approach trajectory of the legs 12 of the upper mold 4. The upper end surface of the sinking mold 26 is formed to be inclined in correspondence with the reference surface 29 of the main body 1, and the lower part of the leg portion 12 of the upper mold 4 is biased upward. The end surface is similarly set to be inclined in correspondence with the upper end surface of the lower sinking mold 26, so that the lower sinking mold 26 is moved downward in conjunction with the lowering operation of the upper mold 4.

Reference numeral 30 denotes a mold frame whose upper end surface is inclined in correspondence with the reference plane 29, and the mold frame 30 is connected to the movable lower mold 1.
8. A cylinder 31 is arranged so as to surround the fixed lower mold 21 and the sinking lower mold 26 so as to be freely raised and lowered, and the inner peripheral surface of the mold frame 30, the back molding surface 17 of the movable lower mold 18, and the fixed lower mold The end molding surface 22 of 21 and the wall surface 25 of the sinking lower mold 26 constitute a cavity 32.

33 is a powder raw material M connected to the side of the main body 1
This is a powder bowl device for supplying flour, and the holder 36 of the powder bowl 35, which is controlled to advance and retreat upward of the cavity 32 by a cylinder 34, is held against the frame 37 by a pin 38.
The inclination angle can be adjusted freely at the cradle 3.
An adjustment bolt 39 is provided between the frame 37 and the reference surface 29 to adjust and fix the inclination angle of the pedestal 36 in response to changes in the angle of the reference surface 29.

Next, the operation of the curved tile molding apparatus according to the present invention will be explained. First, when the powder bowl 35 is moved forward and backward onto the cavity 32 in the state shown in FIG. The powder raw material M in the powder chamber 35 is dropped and filled.

The amount of powder raw material M supplied to the horizontal molding surface 15 within the cavity 32 is adjusted by the movable lower mold 1.
8 can be adjusted arbitrarily by raising and lowering the cylinder 20, and the total supply amount including the vertical molding surface 14 and the horizontal molding surface 15 can be adjusted by using the sinking mold 2.
6. Adjustment is possible by controlling the mold frame 30 to move up and down.

In addition, if the tile base to be molded is small, there will be no problem in molding even if the reference plane 29 on the upper surface of the sinking lower mold 26 and the mold frame 30 is horizontal regardless of the slope of the horizontal molding surface 15 of the upper mold 4. .

Subsequently, when the upper mold 4 moves downward, the rake angle 13 of the leg 12 hanging down from the end of the upper mold 4 engages the mold frame 30 and moves upward against the spring 10. As the mold 4 moves to the left, the legs 12 come into contact with the upper end surface of the lower sinking mold 26, and the lower mold 26 descends due to the pressing force of the upper mold 4 against the upward biasing force of the lower mold 26. Interlockingly, the lower sinking mold 26 moves downward and outward from the cavity 32, and along with this, the vertical molding surface 14 of the upper mold 4 is arranged on the side end surface of the cavity 32 instead of the wall surface 25 of the lower sinking mold 26,
In addition, the movable lower mold 18 is lowered to a position where it is regulated by contact with the bridge member 24 due to the downward pressing of the upper mold 4, and the horizontal molding surface 15 is compression molded with the upper mold 4. Vertical molding surface 1 corresponding to the descending pitch
4 is compressed and molded, and after completion of the compression molding, the upper mold 4 is raised as shown in FIG. By moving the mold frame 30 to the right and lowering the mold frame 30, the molded tile base T is released from the mold.

In addition, in order to form a multicolored tile by disposing a plurality of powder raw materials of different colors on the surface of the tile base T, for example, Japanese Patent Application Laid-Open No. 59-1980, filed by the present applicant, is known.
As shown in Publication No. 164106, a multi-color tile molding device for supplying colored raw materials in a pattern on the upper surface of the main material is used as a powder machine 33 for supplying the main material.
After the main powder raw material M is supplied by the powder device 33 so as not to interfere with the mold frame 30, the colored powder is supplied to the surface thereof, and the upper mold 4 By compression molding, it is possible to mold multicolored tiles with colored powder applied on the lateral molding surface 15.

〔Effect of the invention〕

In short, the present invention is a molding device for a tile base T having two bent planes, in which the vertical molding surface 14 corresponds to one of the two planes on the front side of the tile base T.
are arranged so as to be inclined outward at a predetermined angle as they go downwards with respect to the vertical plane, and correspondingly, the structural mold surface 15 forming the other plane is arranged as to be inclined downwardly at a predetermined angle as they go outwards with respect to the horizontal plane. The upper mold 4 is made of a metal mold and has a rake angle 13 at the outer lower end of the leg part 12, and the upper mold 4 is slightly slidable on the upper mold mounting plate 2. Since it has a spring 10 and a stopper 11 which are provided so as to come into contact with the upper mold 4, the vertical molding surface 14 of the upper mold 4 is fixed to the molded tile by the upward movement and rightward movement when the upper mold 4 is released. The mold can be released instantly without causing any rubbing against the base material T.
Therefore, the molding surface of the vertical molding surface 14 can be molded neatly without collapsing, and all the molding surfaces on the front side are covered with the upper mold 4.
Since it is continuous with the vertical molding surface 14 and horizontal molding surface 15, the vertical molding surface 14 and the horizontal molding surface 1
5 are released from the mold at the same time and the restoring force during compression is the same, so it is possible to prevent boundary streaks from appearing at the corners of the two bending surfaces. a movable lower mold 18 equipped with a movable lower mold 1;
8 and has an end molding surface 22 that corresponds to the end surface of the vertical molding surface 14. Therefore, by adjusting the vertical position of the movable lower mold 18, the vertical molding surface 14 and the horizontal molding surface 15 can be adjusted. By adjusting the filling amount of the powder raw material M between the mold and the mold, it is possible to uniformly fill and pressurize the inside of the cavity 32, and it is therefore possible to mold the tile base T with good dimensional accuracy. A sinking lower mold 26 that is provided adjacent to the fixed lower mold 21 and holds the end face of the cavity 32 until the vertical molding surface 14 of the upper mold 4 is lowered and moves downwardly with the upper mold 4; Lower mold 1
8 and a mold frame 30 which surrounds the sinking mold 26 and whose upper surface is arranged in an inclined manner corresponding to the horizontal molding surface 15; Since the powder massing device 33 is configured with a powder massing device 33, even when the upper mold 4 has an irregular molding surface, the lower mold 26 sinks until the upper mold 4 is lowered.
Since the side surface of the cavity 32 is held by the molding device 33, the powder raw material M can be uniformly filled into the cavity 32 corresponding to the molding surface of the upper mold 4 by the normal operation of the powdering device 33, and the powder material M can be molded. Since the surface side of the tile base T is located on the upper side facing the upper mold 4, multicolored tiles can be molded simply by adding a powdering device for supplying colored powder to the side of the mold frame 30. It is possible to make it possible.

In other embodiments, the vertical molding surface 1 of the upper mold 4
4. The horizontal molding surface 15 has uneven patterns 16, 16a...
As a result, it is possible to mold a tasteful tile base T with a larger roughened surface.In this case, since the vertical molding surface 14 is inclined at a predetermined angle as described above, the upper mold 4 When releasing the mold, a good molding surface can be obtained without crushing the uneven patterns 16, 16a, and furthermore, the dusting device 33 is arranged so that its angle can be adjusted freely according to the inclination of the mold frame 20. Therefore, the practical effects such as being able to adapt the crushing device 33 to changes in the inclination angle of the mold frame 30 and the like are enormous.

[Brief explanation of drawings]

The figure shows one embodiment of the present invention.
The figure is a cross-sectional view of a curved tile molding apparatus according to the present invention, and FIGS. 2 to 4 are cross-sectional views showing the molding process.
Figure 5 is a diagram showing the upper mold mounting plate and the upper mold installation state;
Figure 6 is a perspective view of the tile base, Figures 7 to 10
The figure is a sectional view showing a conventional example. 2... Upper die mounting plate, 4... Upper die, 10... Spring, 11... Stopper, 14... Vertical molding surface, 1
5... Horizontal molding surface, 16, 16a... Uneven pattern, 1
7...Back molding surface, 18...Movable lower mold, 21...Fixed lower mold, 22...End molding surface, 26...Sinking lower mold, 30...Mold frame, 32...Kabutei, 33
...Powdering device.

Claims (1)

[Scope of Claims] 1. A device for molding a tile base having two bent planes, in which a vertical molding surface corresponding to one of the two planes on the front side of the tile base is formed at a predetermined angle with respect to a vertical plane as it goes downward. The structure surface forming the other plane is arranged to be inclined outwardly, and correspondingly, the structural surface forming the other plane is arranged to be inclined downward at a predetermined angle as it goes outward with respect to the horizontal plane, and a rake angle is provided at the outer lower end of the leg. an upper mold comprising: a spring and a stopper provided below the upper mold mounting plate so as to allow the upper mold to slide slightly relative to the upper mold mounting plate; a movable lower mold having a back molding surface opposite to the horizontal molding surface of the movable lower mold, a fixed lower mold provided adjacent to the movable lower mold and having an end molding surface corresponding to the end surface of the vertical molding surface; A sinking lower mold that is installed adjacent to the mold and holds the end face of the cavity until the vertical molding surface of the upper mold is lowered and moves downwardly to the upper mold, and surrounds the fixed lower mold, the movable lower mold, and the sinking lower mold. A curved tile molding device comprising a mold frame and a powdering device that is controlled to advance and retreat onto the cavity along the upper surface of the mold frame. 2. The curved tile molding apparatus according to claim 1, wherein an uneven pattern is formed on the vertical molding surface and the horizontal molding surface of the upper mold. 3. The curved tile molding device according to claim 1, wherein the powdering device is arranged so as to be able to adjust its angle freely so as to correspond to the upper surface of the mold frame.