JP2001048663A - Suction type mold assembly for fibrous formed body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction type mold assembly which is used for forming a fibrous body and enables reduction in number of parts to be assembled to a minimum and simplification of assembling work of the parts and releasing work of the formed body from the mold assembly. SOLUTION: This mold assembly consists of a bottom side boxlike body A that is provided with a suction port 4 and an inner shell 1 formed as a wire mesh screen 1b and two U-shaped peripheral surface side boxlike bodies B each of which is connected to the boxlike body A with a hinge 10 so as to be freely erected or laid and has an inner shell 6 formed as a wire mesh screen 6b. The process for producing a fibrous formed body by using the mold assembly comprises: immersing the mold assembly in a fibrous slurry; sucking out and removing water in the fibrous slurry through the suction port 4 and depositing fibers on the wire mesh screens 1b and 6b in a layered state to produce the objective fibrous formed body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a suction type device used for a fiber molded product.

[0002]

2. Description of the Related Art Conventionally, gas and
2. Description of the Related Art A suction type device is known as a type device for forming various combustion chambers and silencers of kerosene. The suction-type device is configured using a suction box-like body whose inner shell is formed by a mesh screen.

[0003] In general, all of the above-mentioned products have a rectangular tube shape, so that the box-shaped body constituting the suction type device is a bottom-side box-shaped body and a bottom-side box-shaped body. , And a total of six members including a lid plate that commonly closes an upper surface opening of the peripheral box. In addition, a simple fastening type toggle clamp that generates a large force with a small force by applying a link is often used for assembling the members.

[0004] In order to manufacture a ceramic fiber molded body using the above-mentioned suction type apparatus, the assembled suction type apparatus is placed in a tank containing a fiber slurry prepared by adding an inorganic binder and water to ceramic fibers. It is immersed in the immersion state, and the suction action of the suction pump connected to the suction port of the bottom box through a hose sucks the water of the fiber slurry through the mesh screen of each box that is connected to each other. When a ceramic fiber is adhered to the surface of the mesh screen and a fiber layer having a required thickness is formed, the mold device is taken out of the tank, and the mold device is disassembled and demolded. As a result, a rectangular cylindrical ceramic fiber molded body is obtained.

[0005] The use of the above suction-type apparatus has the advantage that a compact having good dimensional accuracy, thinness, light weight and high strength can be obtained as compared with a fired product of a ceramic material.

[0006]

The above-mentioned suction type device is
A total of 6 of the bottom-side box, four peripheral-side boxes, and a common lid plate
Requires a large number of toggle clamps (12) to assemble those members, which requires a great deal of work and time for the entire assembling work and demolding work. Makes it difficult.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a suction-type mold device which minimizes the number of parts to be assembled in a suction-molding device for a fiber molded product, and which can greatly simplify assembling work and demolding work. And

[0008]

SUMMARY OF THE INVENTION According to the present invention, there is provided an apparatus for suction-molding a fiber molded article having a suction port for connecting a suction pump.
A bottom box having an inner shell as a mesh screen, and the bottom box having a shape that divides the entire circumference into two parts are respectively connected to the bottom box so as to be able to move up and down, and can communicate with the bottom box in a standing posture. Two peripheral box-shaped bodies each having an inner surface of a mesh screen, a fastener for integrally holding the two peripheral box-shaped bodies in the standing position, and a peripheral box in the standing position. And a fastener for integrally holding the body to the bottom box.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As a preferred embodiment of the present invention, as shown in FIG. 1, a bottom box A having an inner shell 1 formed by a reinforcing porous plate 1a and a mesh screen 1b is provided. The box A is hingedly connected to the box A so that the inner shell 6
Is constituted by two U-shaped peripheral side box-shaped bodies B, B formed by a reinforcing porous plate 6a and a mesh screen 6b, and the mold apparatus is immersed in a storage tank of the ceramic fiber slurry. , The moisture in the fiber slurry is removed by suction, and the fibers are attached to the mesh screens 1b and 6b in layers to obtain a fiber molded body.

[0010]

1 to 9 show an embodiment of a suction type molding apparatus for a ceramic fiber molded article according to the present invention. The suction-type device is mainly composed of a bottom box-shaped body A and two hollow box-shaped bodies B, B, each of which has a U-shape in plan view.

The bottom box A is a rectangular dish-shaped inner shell 1.
And a box-shaped outer shell 2 larger than that. The inner shell 1 is formed of a reinforcing porous plate 1a and a mesh screen 1b attached to the surface thereof.
It is supported by. Reference numeral 4 denotes a suction port provided on the outer shell for connecting the hollow chamber between the inner shell 1 and the outer shell 2 to a suction pump.

The peripheral box B is composed of an inner shell 6 and an outer shell 7 having a U-shaped cross section. The inner shell 6 is composed of a reinforcing porous plate 6a and a mesh screen 6b attached to the surface thereof. It is formed and supported by the outer shell 7 via the spacer 8. 9 is a hollow space between the inner shell 6 and the outer shell 7.

The two peripheral box-shaped bodies B having the above structure are:
Hinge 10 is connected to the periphery of the bottom-side box-shaped body A so as to be able to move up and down. The U-shaped inner shell 6 of the peripheral box-shaped bodies B, B in the upright posture has its lower end edge aligned with the upper edge of the dish-shaped inner shell 1 of the bottom box-shaped body A, and is hollow. The lower opening of the chamber 9 is configured to communicate with the hollow chamber 5 at an outer portion of the dish-shaped inner shell 1. In addition, the distal end edges of the U-shaped inner shell 6 and the outer shell 7 of the peripheral box-shaped bodies B, B in the upright posture abut each other, and the two hollow chambers 9, 9 communicate with each other. Reference numeral 11 denotes a cover plate for closing an upper opening of the U-shaped hollow chamber 9. A toggle clamp C is used as a fastener for integrally holding the peripheral-side box-shaped bodies B, B in the upright posture, and a fastener for holding both box-shaped bodies on the bottom-side box-shaped body A.

FIGS. 6 and 7 show examples of the structure of the toggle clamp. In the figure, 12 is an operation grip, and 13 is a holding member. 2 and 3 show the state of use. In the illustrated example, flanges 14 and 14 are fixed to the butting ends of the outer shells 7 of the U-shaped peripheral side box-shaped bodies B and B, and the toggle clamp C is attached to the receiving plate 15 fixed to one of the flanges.
Is installed, and the pressing member 13 is pressed against the flange 14 on the opposite side by rotating the grip 12 of the toggle clamp, whereby the box-shaped bodies B on both sides are firmly held.

The peripheral flange 16 of the bottom box-shaped body A
And a toggle clamp C is installed on the receiving plate 17 and a pressing member of the toggle clamp is attached to the abutting portion of the lower end flanges 18 of the two peripheral side box-shaped bodies B, B in the standing posture. By pressing 13, both peripheral side box-shaped bodies B, B are firmly held on the bottom side box-shaped body A.

A pair of handles 19 used when suspending the box-shaped body are fixed to required portions of the outer shell 7 forming the peripheral-side box-shaped bodies B, B. In the U-shaped inner shell 6 forming the peripheral side box-shaped bodies B, a semi-circular opening 6c is formed at the butt end side for the purpose to be described later, and the two semi-circular openings are formed. The circular plug 20 shown in FIGS. 8 and 9 can be fitted into the circular opening formed by 6c, 6c.

In order to manufacture a ceramic fiber molded body using the suction-type mold device having the above-described structure, as shown in FIG.
A tank 21 contains a fiber slurry prepared by adding an inorganic binder and water to ceramic fibers, and a bottom box A and two peripheral boxes B, B are assembled at an upper portion of the tank. Of the suction-type device of the first embodiment, the hanging device D and the handle 1
9, a suction pump (shown in FIG. 1) is hung so that the opening is directed downward, immersed in the tank, and immersed in the tank, and connected to the suction port 4 of the bottom box-shaped body A via the hose 22. Drive) and aspirate the fiber slurry.

By the above-mentioned suction action, the bottom box-shaped members A and 2
The moisture in the fiber slurry in the mold surrounded by the two peripheral box-shaped bodies B, B is the mesh screen 1b and the perforated plate 1a forming the inner shell 1 of the bottom box A, and the peripheral side. Box B,
The fibers are sucked into the hollow chambers 5, 9, 9 through the mesh screen 6b and the perforated plate 6a forming the inner shell 6 of B, and the fibers are adsorbed on the entire surfaces of the mesh screens 1b, 6b to a uniform thickness. In this way, after the suction-type mold device is immersed for a certain period of time, it is taken out to the upper portion of the tank in that state, excess slurry is discharged from the opening of the mold device, and then the mold device is turned 180 degrees and allowed to stand still During this time, the bottom box-shaped body A
The remaining moisture is completely sucked out from the suction port 4 of.

Next, the suction action is stopped, the toggle clamp C is released, and the peripheral box-shaped bodies B, B are opened to open the plug 20.
Is removed, and the molded body placed on the dish-shaped inner shell 1 of the bottom-side box-shaped body A is taken out, thereby completing the molded body manufacturing process. FIG. 11 shows a rectangular cylindrical ceramic fiber molded body E taken out after the mold release. The circular opening 23 in the molded body E is an opening formed at a place where the plug 20 is attached to the mold device (for example, used as a burner port).
It is.

In the above embodiment, the peripheral box-shaped members B, B joined to the bottom-side box-shaped member A so as to be able to move up and down are formed in a U-shape when viewed from a plane. It is possible to adopt a configuration in which A is a circular shape, and a peripheral-side box-like body that is formed in a semi-annular shape in a plan view is freely undulated. According to this configuration, a cylindrical fiber molded body is obtained.

[0021]

As described above in detail, according to the present invention, the number of parts to be assembled in the suction type apparatus is minimized, and the assembling operation and the demolding operation can be greatly simplified. A mold device is obtained. Therefore, by using the suction type apparatus of the present invention, mass production and improvement in product accuracy (less assembly errors due to the reduction in the number of assembly members) can be expected. In addition, the seam of the product is minimized at two places on the side center line and four places at the bottom, so that the appearance is good.

[Brief description of the drawings]

FIG. 1 is a side view of an apparatus for suction-molding a fiber molded body according to an embodiment of the present invention.

FIG. 2 is a cross-sectional plan view of the suction-type mold device.

FIG. 3 is a perspective view of a part of the suction-type mold device.

FIG. 4 is a longitudinal sectional view of the bottom box-shaped body.

FIG. 5 is a perspective view of a bottom box.

FIG. 6 is a side view of the toggle clamp.

FIG. 7 is a plan view of the toggle clamp.

FIG. 8 is a plan view of the plug.

FIG. 9 is a cross-sectional view of the plug.

FIG. 10 is an explanatory diagram of a case where a fiber molded body is formed using a suction-type mold device.

FIG. 11 is a perspective view of the fiber molded body removed from the mold.

[Explanation of symbols]

 Reference Signs List A bottom box 1 inner shell 1a perforated plate 1b mesh screen 2 outer shell 3 spacer 4 suction port 5 hollow chamber B peripheral box 6 inner shell 6a perforated plate 6b mesh screen 6c opening 7 outer shell 8 spacer Reference Signs List 9 hollow chamber 10 hinge 11 cover plate C toggle clamp 12 operation grip 13 holding member 14 flange 15 receiving plate 16 flange 17 receiving plate 18 flange 19 handle 20 plug body D hanging tool 21 tank 22 suction hose E fiber molded body 23 fiber molding A circular opening in the body

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Kyoichi Katayama 1128 Oka, Hirata-cho, Kaizu-gun, Gifu Prefecture Kyowa Kogyo Co., Ltd. F-term (reference) 4G052 GA10 GA15 GB92

Claims (4)

[Claims] 1. A bottom box having a suction port for connecting a suction pump and having a mesh screen as an inner shell, and a shape in which the entire circumference of the bottom box is divided into two parts so as to be freely raised and lowered. Combined, it is possible to communicate with the bottom side box-shaped body in the upright posture,
Two peripheral box-shaped bodies each having an inner surface of a mesh screen, a fastener for integrally holding the two peripheral box-shaped bodies in the standing position, and a peripheral box box in the standing position; A suction tool for holding the body integrally with the bottom-side box-shaped body. 2. The suction molding device for a fiber molded product according to claim 1, wherein the peripheral-surface-side box-shaped member has a U-shape when viewed from above. 3. The suction molding device for a fiber molded product according to claim 1, wherein a toggle clamp is used as the tightening tool. 4. A plug for detaching a required portion of a mesh screen forming an inner shell of the peripheral side box-like body and not functioning as a mesh screen is detachably fitted to the cut portion. Item 2. A suction-type mold device for a fiber molded article according to Item 1.