JPH0442086Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a mold for isostatic press.

Prior Art Isostatic presses are used to mold long bricks, continuous casting immersion nozzles, long nozzles, etc. because they can apply pressure uniformly to each part of the molded body. However, in isostatic presses, the pressurized container has an integral structure because it must withstand high pressure during molding and be airtight to prevent leakage of water or gas, which is the pressurizing medium. Considering this, the inner diameter could not be made that large. In addition, in an isostatic press, refractory clay is put into a core mold, an upper plate, and a rubber mold around its side surface, and then inserted into an isostatic press to be press-formed. ing.

Problems that the invention aims to solve: However, when refractories are formed using an isostatic press, the refractory clay is pressurized from all directions, top, bottom, left and right inside the container, resulting in the problem of excessive clay being added. The dimensions of the molded object cannot be determined due to undersizing.
It was easy for defective products to occur.

In addition, if the bottom surface of the core mold is small, the molded product is long and therefore very unstable when being transported after being inserted into an isostatic press, and must be fixed in a special container before being transported. This not only hinders work efficiency but also increases transportation equipment costs.

Means for Solving the Problems The present invention was developed in view of the above-mentioned problems, and in order to solve the above-mentioned problems, a core rod mold that forms the core of a molding mold for an isostatic press has been developed. A base plate that can be stably installed on the bottom surface is integrally fixed, and a plurality of core rods of a predetermined length are attached to the base plate to which the core rod mold is fixed, so that it can be installed on the top surface of the molding die. To provide a mold for an isostatic press, characterized in that an upper plate and a base plate are arranged at a constant interval via the core rod.

Effects According to the present invention, the mold can be stably installed using the base plate, making it easy to transport, and the top plate and base plate can be maintained at a constant distance using the core rod. Since the dimensions of the molded body are constant, the occurrence of defective products can be completely eliminated.

Example The present invention will be explained below based on examples.

FIG. 1 shows an embodiment of the present invention. As shown in FIG. 1, the molding die 1 has an upper plate 3 facing a lower core rod die 2 formed into a predetermined shape, and a predetermined rubber mold 4 arranged around its side periphery as in the past. Set up
The inside is filled with a refractory clay 5 so that it can be isostatically press-molded into a predetermined shape. The rubber mold 4 is tightened by wrapping tightening bands 14 around its upper and lower side circumferences. Then, a mounting hole 6 is provided on the lower surface of the lower core rod mold 2,
A base plate 7 whose vertical and horizontal dimensions are about twice the size of the bottom surface of the core rod mold 2 is integrally fixed to the core rod mold 2 with a fixing device 8 such as a bolt, and the molding mold 1 is fixed to the lower surface thereof. It allows for stable installation. Also, upper plate 3
A mounting hole 9 is also opened on the upper surface side, and an upper cover 10 for fixing the upper plate, which has the same size as the base plate 7 described above, is attached to the upper plate 3 using a fixing tool 11 such as a bolt.
It is integrally fixed with. Then, core rods 12 of a predetermined rigidity are installed at the four corners of the top and bottom lids 10 for fixing the upper and lower upper plates, and the base plate 7, respectively, and the upper lids 10 and the base plate 7 for fixing the upper and lower plates are installed at the top using nut fasteners 13. They are firmly tightened at regular intervals so that the mold 1 can be held in a constant shape.

Therefore, when transporting the above-mentioned molding die 1 to the isostatic press, the molding die 1 can be moved without fear of falling due to the base plate 7 attached to the bottom surface of the core rod mold 2. , can be installed with good stability, and can be easily transported without the need for special containers.

Furthermore, even when inserted into an isostatic press for molding, the core rod mold 2 and the upper plate 10 can be firmly supported at a constant interval via the core rod 12, so that molded products of a constant length can be formed. It is possible to obtain the shape of the base material.

Other Embodiments FIG. 2 shows another embodiment of the present invention. Base plate 7
Then, the upper cover 10 for fixing the upper plate is made twice the size of the above-mentioned one, and as shown in the figure, the two molding molds 1 are connected to the base plate 7 and the upper cover 10 for fixing the upper plate through the required number of core rods 12. are firmly attached in one piece.

In this example, the dimensions are large and the mold can be installed very stably, and
It is possible to double the productivity of molded bodies by isostatic pressing, and to dramatically improve production efficiency.

In the above example, the upper plate is attached to the upper cover for fixing the upper plate by fitting it without fixing it with bolts, and if necessary, the core rod mold can also be attached to the base plate in the same way, and the molding It can be easily attached to and detached from the upper cover for fixing the upper plate of the mold and the base plate.

In the above, two molding molds are integrally arranged on the base plate, etc., but it is also possible to install a suitable plurality of molds to perform press molding according to the capacity of the isostatic press. be.

Effects of the invention As described above, with this invention, there is no occurrence of defects in the length direction of the molded base material, and it is possible to cut the molded base material to fit the product after firing and reduce the polishing work. This will improve productivity. In addition, by integrally attaching the base plate to the lower surface of the core rod mold that forms the core of the molding mold,
The mold can be installed stably, improving safety, and the transport equipment can be simplified without the need for special transport equipment, and the mold can be installed with the base plate attached. It can be filled with clay and isostatically press-molded.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of one embodiment of the present invention, and FIG. 2 is a side sectional view of another embodiment of the same, in which two molds are installed. 1... Molding die, 2... Core rod die, 3... Upper plate, 7... Base plate, 10... Upper cover for fixing the upper plate, 12
... Core rod.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A base plate that can be stably installed is integrally fixed to the lower surface of a core rod mold that forms the core of a molding mold of an isostatic press, and the core A plurality of core rods of a predetermined length are attached to the base plate to which the bar mold is fixed, and the upper plate and base plate for mounting the upper surface of the molding die are arranged at regular intervals via the core rods. A mold for isostatic press, which is characterized by: (2) Utility model registration claim 1, in which an upper cover for fixing the upper plate is attached to the upper plate, and a plurality of molding molds are removably arranged between the upper cover for fixing the upper plate and the base plate. Molding mold for isostatic press.