JPH09183107A - Tile molding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently mold a tile by means of a small press machine by mounting lower and upper molds for molding on a transfer truck so as to be opened and closed. SOLUTION: When pressure molding is effected in a press machine 1 and a bottom case 6 is lifted, upper and lower molds 18, 15, in close contact with each other, are separated by slightly pushing up the mating surface of the upper mold 18, and under such conditions, a switching device 23 is switched to the side of a compressor 25 to feed air into the molds from the compressor 25 and a transfer truck 10A is transferred to its original location outside the press machine 1 and the mold 18 is lifted to take out a tile body molded favorably. For removing the tile from the molds, a transfer truck 10B positioned on the opposite side is transferred into the machine 1 so as to be pressed by the machine 1. As a result, the trucks 10A, 10B are alternately put in and taken out of the machine 1, whereby time loss can be eliminated so that the machine 1 can be efficiently operated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding apparatus for molding roof tiles.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 10, a roof tile forming press 51 is provided with a lower mold 52 and an upper mold 53 which can move up and down. Type 5
It is configured to put clay dough into 3 to form a roof tile. In addition, since the molding capacity is limited in FIG. 10, in order to further increase the manufacturing capacity, the molding capacity in FIG.
11 is present, and in FIG. 11, the rotary body 54 is rotatably provided in the press machine.
6 lower molds 52, 52, 52 are attached to the outer circumference of the rotating body 54, and the lower body 52 is rotated by rotating the rotating body 54 in sequence.
It has improved the production capacity. In addition, there is a rotary body 54 configured to rotate in a horizontal plane. Further, the structure shown in FIG. 12 is configured such that a rocking body 56 is provided in the press machine 51, a lower die 52 is attached to the upper part of the rocking body 56, and the rocking body 56 is rocked to form a roof tile. ing. However, in such a conventional press machine 51 for roof tile forming, it is necessary to increase the number of molds to be pressed at the same time in order to increase the production capacity, and there is a problem that the entire press machine becomes large in size. There has been a problem that it is difficult to form two or more different types of roof tiles with a press machine.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above problems of the prior art, and an object of the present invention is not to provide a roof tile forming apparatus capable of forming roof tiles efficiently with a small press machine. The first gist of the invention is that it is composed of a press machine and a carriage that can move in and out of the press machine, and a lower mold and an upper mold for roof tile forming are openably and closably mounted on the carriage. Is. The second gist is that a vacuum pump capable of extracting air from the mold during molding with the lower mold and the upper mold closed, and a compressor capable of driving demolding air into the mold after molding are piped. That is connected.

[0004]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of the roof tile forming apparatus, and FIG. 2 is a schematic plan configuration diagram of FIG. 1. In the figure, the roof tile forming apparatus of this example is composed of a press machine 1 and transfer carriages 10A and 10B that can move in and out of the press machine 1, and a lower mold 15 and an upper mold are provided in each of the transfer carriages 10A and 10B. 18 is arranged so as to be openable and closable, and the carriage 10A
To explain, the wheels 12 are provided rotatably on the lower portion of the base frame 11 of the carrier 10A so that the wheels 12 can enter and exit the press machine 1. Instead of the wheel 12, a roller, a slider, or the like may be used, and a moving means using a ball screw or the like may be adopted so that the wheel can be moved in and out of the press machine 1. Further, the lower template 14 is provided on the upper surface of the base frame 11.
Is fixedly mounted, a lower mold 15 is provided on the lower mold plate 14, and an upper mold 18 is arranged so as to be movable up and down with respect to the lower mold plate 15, and is raised from the lower mold plate 14. The upper mold plate 17 supporting the upper mold 18 is configured to be vertically movable along the guide bars 16, and the plurality of guide bars 16 are connected and reinforced by the beams 19.

An enlarged configuration diagram of the lower mold 15 and the upper mold 18 is shown in FIG. 3. An outer peripheral frame 20 is provided on the outer periphery, and the outer periphery is covered with an outer peripheral cover 21. In the state where the upper mold 18 is closed with respect to the lower mold 15, the mold is configured to be sealed by the outer peripheral frame 20, and the outer peripheral cover 21 prevents oil and the like from splashing outside during molding. It is provided to prevent it.

Incidentally, FIG. 4 shows an exploded view of the lower mold 15 and the upper mold 18. As described above, since the inside of the mold is in a closed state at the time of molding, if air remains inside during molding, the clay Since the fluidity deteriorates and the clay does not rotate all the way, and dents, wrinkles, and cracks are generated in the protrusions and corners of the tile material Pa to be molded, and defective products are generated. Air vent groove 20a at a position where it is easy to create
Is provided. However, the air bleeding groove 20a is apt to be clogged during press molding and does not function sufficiently. Further, the lower mold 15 and the upper mold 18 are provided with air injection valves 26, 26 for injecting air into the mold at the time of mold release after molding to facilitate the mold release. As shown in FIG. 1, the vacuum pump 24 uses a switching device 23 to extract air during the above-described pressure molding.
Further, it is connected to the molds 15 and 18 via an air pipe 22, and in this example, a compressor 25 is connected to drive air into the mold at the time of demolding. The switching device 23 switches between a state in which it communicates with the vacuum pump 24 side and a state in which it communicates with the compressor 25 side.

In this embodiment, clay dough is supplied into the lower mold 15 and the upper mold 18 of the carrier 10A at a position outside the press machine 1 in a state where the lower mold 15 and the upper mold 18 are engaged with each other. , The switching device 23 is switched to the vacuum pump 24 side, and the air in the mold is extracted by the vacuum pump 24. In this state, the transfer carriage 10A is transferred to the position of the bed 7 of the press machine 1, and in this state Then, the pressurizing unit 5 of the press machine 1 is operated to lower the bottom case 6 together with the ram 4, so that the transport carriage 1 is moved between the bed 7 and the bottom case 6.
The lower mold 15 and the upper mold 18 placed on 0A are pressed, and the clay material in the mold is pressure-molded to mold the roof tile material Pa. During the pressure molding, the vacuum is applied. Pump 2
4 is operated to continue degassing in the mold, and a good roof tile material Pa free from wrinkles, dents, and breaks can be obtained.

When the bottom case 6 is lifted after pressure molding in the press machine 1 as described above, the upper mold 18 and the upper and lower molds 15 and 1 which are closely contacted by slightly pushing up the mating surfaces at the same time.
8 is separated, and in this state, the switching device 23 is switched to the compressor 25 side, air is injected from the compressor 25 into the mold, and the carrier 10A is pressed by the press machine 1.
It is possible to convey to the original position on the outer side of, and raise the upper mold 18 to take out the well-formed roof tile material Pa. At the time of demolding, the carrier truck 10B arranged on the opposite side is conveyed into the press machine 1 and the press machine 1
Is pressurized by. Therefore, the press machine 1 can be efficiently operated by eliminating time loss by alternately carrying in and out the press machine 1 by the transport carriages 10A and 10B.

A valve 26 having a structure as shown in FIG. 5 is provided on the lower mold 15 in order to favorably perform the deaeration and the demolding. As shown in FIG. Has a pin hole 28, a storage hole 29 inside thereof, and a dish-shaped countersink 30 inside thereof. A pin 31 is inserted into the pin hole 28, and a U-nut is provided outside the pin 31. Three
3 is screwed, and a spring 32 is externally fitted to the pin 31 in the housing hole 29, and the spring 32 is brought into contact with the dish-shaped head 31a at the upper end of the pin. There is. In the state of FIG. 5, the clay dough is supplied into the mold and the lower mold 15 and the upper mold 18 are in mesh with each other. In this state, the spring 32 pushes the pin 31 to open the valve 26. Vacuum pump 2 mentioned above in the state
4 can be actuated to remove the air in the mold.

Further, when pressure-molded in the press machine 1, as shown in FIG. 6, the spring 32 is compressed and the dish-shaped head 31a is brought into close contact with the dish hole 30. It is possible to satisfactorily prevent the outflow of water. Further, when demolding after molding, as shown in FIG. 7, compressed air is sent from the compressor 25, the valve 26 is pushed up and opened, and air is vigorously driven into the mold, and the upper mold is satisfactorily The tile material Pa formed by opening 18 can be taken out. In addition,
In this example, the lower mold 15 is provided with the valve 26. However, the upper mold 18 may be provided with such a valve, and the valve 26 may be configured to be opened and closed by using a cylinder. It is also possible to provide one by one and separately arrange it as a valve for venting air and a valve for blowing air.

In the plan view of FIG. 8, the four transport carriages 10A, 10B, 10C and 10D are installed in the press machine 1.
In FIG. 8, the transport carriage 10A is loaded into the press machine 1 and press-molded, and then the transport carriage 10A is carried out of the press machine 1 at the same time as shown in FIG.
B is loaded into the press machine 1, press-molded, and the carriage 1
At the same time that 0B is carried out of the press machine 1, the carriage 1
0C is carried into the press machine 1, and after carrying out the press molding, the carriage 10C is carried out of the press machine 1, and at the same time, the carriage 10D is carried into the press machine 1 to continuously and efficiently form the roof tile. Is something that can be done.

A circular track 35 may be provided as shown in FIG. 9 so that the carriage can be carried in and out of the press machine 1 along the circular track 35. In FIG.
The mold after press molding is opened at the position a, the roof tile material is taken out from the mold at the position b, the clay material is newly supplied into the mold at the position c, and the mold is closed. Are arranged on the circular orbit 35, and the roof tile can be continuously formed by the press machine 1.

In this example, the lower mold 15 and the upper mold 18 are
Since it is built into the carrier, the work of supplying the clay dough into the mold and the work of taking out the tile dough after molding from the mold can be performed outside the press machine 1, increasing the safety. Can be done easily. Moreover, the stroke of the press machine 1 can be shortened as compared with the conventional press machine, and the press machine 1 can be downsized. Further, if a plurality of carriages are used, a plurality of types of roof tile products can be molded, and in the case of a roof tile having a complicated shape, it is necessary to press the press machine 1 many times.
Even in such a case, the molding can be efficiently performed.

[0014]

EFFECT OF THE INVENTION The roof tile forming apparatus of the present invention comprises a press machine and a carrier truck that can move in and out of the press machine, and a roof tile forming lower mold and an upper mold die are openably mounted on the carrier carriage. By doing so, it is possible to open the lower mold and the upper mold on the carrier on the outside of the press machine to supply the clay dough inside, and take out to the outside after pressure molding in the press machine and remove the mold. Therefore, the work can be performed safely and easily outside the press machine, and the press machine can be downsized by setting the stroke of the press machine short. Further, by connecting a vacuum pump capable of extracting air in the mold at the time of molding with the lower mold and the upper mold closed and a compressor capable of injecting demolding air into the mold after molding, by piping connection. , It is possible to surely remove air from the mold through a vacuum pump to prevent defective products such as wrinkles, dents, and cracks from being formed on the tile material to be molded, and after molding, use a compressor to mold. There is an effect that the product can be taken out by injecting air into the mold to easily remove the mold, and the molding work is sure and easy.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an arrangement state of a press machine and a carriage.

FIG. 2 is a schematic plan configuration diagram of FIG.

FIG. 3 is an enlarged configuration diagram of a lower mold and an upper mold.

FIG. 4 is an exploded perspective view showing a state where a lower mold and an upper mold are disassembled.

FIG. 5 is an enlarged cross-sectional view of a main part of a valve provided in the lower mold in a degassing state in the mold.

FIG. 6 is an enlarged cross-sectional view of a main part of the valve showing a state during press molding.

FIG. 7 is an enlarged cross-sectional view of a main part of the valve when a product is taken out.

FIG. 8 is a plan configuration diagram in which four carrier vehicles are arranged.

FIG. 9 is a plan configuration diagram in which a carrier is arranged on a circular orbit.

FIG. 10 is a schematic configuration diagram of a conventional roof tile forming press.

FIG. 11 is a schematic configuration diagram of a conventional roof tile forming press using a plurality of lower molds.

FIG. 12 is a schematic configuration diagram of a conventional swing type roof tile forming press.

[Explanation of symbols]

 1 Press machine 5 Pressurizing part 6 Bottom case 7 Bed 10A, 10B, 10C, 10D Transport cart 11 Base frame 12 Wheels 15 Lower mold 16 Guide bar 17 Upper mold plate 18 Upper mold 20 Outer peripheral frame 21 Outer peripheral cover 22 Air pipe 23 Switching Equipment 24 Vacuum pump 25 Compressor 26 Valve 28 Pin hole 29 Storage hole 30 Countersunk hole 31 Pin 31a Plate head 32 Spring 35 Circular orbit P Clay cloth Pa Tile cloth

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hirosaka Nagasaka 2-23, Sasayama-cho, Hekinan-shi, Aichi Stock Company Ishikawa Toki Tetsu Works (72) Inventor Yoshinori Sumiya 2-23, Sasayama-cho, Henan-shi, Aichi Shares Incorporated Ishikawa Toki Works (72) Inventor Kazuo Tsuchida 2-23 Sasayama-cho, Hekinan-shi, Aichi Stock Company Ishikawa Toki Works

Claims (2)

[Claims] 1. A press machine and a carrier truck capable of moving in and out of the press machine, and a lower mold and an upper mold for roof tile forming are mounted on the carrier carriage so as to be openable and closable. Roof tile forming equipment. 2. A vacuum pump capable of extracting air from the mold at the time of molding with the lower mold and the upper mold closed and a compressor capable of injecting demolding air into the mold after molding are connected by piping. The roof tile forming apparatus according to claim 1, wherein: