JP2006346913A - Mold for molding reinforcing net-containing sheet member, reinforcing net-containing sheet member and manufacturing method of reinforcing net-containing sheet member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reinforcing net-containing sheet member having high strength, excellent in durability and constituted so as to be capable of being braked simply, a mold for molding the sheet member and a manufacturing method of the sheet member. <P>SOLUTION: A reinforcing net is installed so as to be brought into contact with the reinforcing net support part formed to at least one of molds opposed to each other in order to mold a raw material and, in a state that the raw material is charged in the space between the molds, the molds are closed to mold the raw material. The raw material is leaked to the molding surfaces of the molds from the meshes of the reinforcing net to embed the reinforcing net in the vicinal part of the molded surface of the sheet member. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a reinforcing net-containing plate-like member laid on a sidewalk, a fence, etc., a reinforcing net-containing plate-like member formed by molding cement or mortar with a mold, such as a straw provided on a roof, and the like. The present invention relates to a method for producing a molding die and a plate member with a reinforcing net.

In general, a plate-like member reinforced with reinforcing fibers is kneaded with fibers in a cement raw material as described in, for example, Patent Document 1 and Patent Document 2, and this fiber-containing cement raw material is pressed with a die. It is made to mold by doing.
However, in the case of a plate-like member molded from a cement raw material containing fibers, the fibers are independent of each other, so that there is a problem that a sufficiently high degree cannot be obtained.

Therefore, a sheet woven with reinforcing fibers is placed on the lower mold of the upper and lower molds, a cement raw material is placed thereon, and then the upper and lower molds are closed, so that the reinforcing fibers are knitted on the lower surface of the plate member. There has also been proposed a structure in which a pressed sheet is provided (Patent Document 3).
JP 2005-125629 A JP 2003-146731 A Japanese Patent Application Laid-Open No. 2001-249942

In the case where a sheet in which the reinforcing fiber is knitted is pressed against the lower surface of the plate-like member, the sheet is easily peeled off, and there is a problem in durability.
The problem that the sheet is easily peeled off becomes remarkable particularly when the sheet has a smooth surface such as glass fiber.
Therefore, after providing a sheet woven with reinforcing fibers on the lower surface of the plate-like member, it may be possible to further apply the cement raw material by spraying or the like. Since the moisture content and the degree of shrinkage are different from those applied in (1), there is also a problem that it is difficult to get accustomed and sufficient rigidity cannot be obtained.

  The present invention has been proposed in view of the above problems, and a plate-like member that can easily brake a plate-like member having high strength and excellent durability, and a gold for molding the plate-like member. An object of the present invention is to provide a mold and a method for manufacturing a plate-like member.

  In order to achieve the above object, the present invention uses a net for reinforcement, and in a mold for molding a plate-like member containing a reinforcement net, the plate-like member is molded by sandwiching a raw material between at least one pair of molding dies. A plate-shaped member molding die is characterized in that a reinforcing net support portion is formed on a molding surface of at least one molding die.

The reinforcing net-containing plate-like member of the present invention is a plate-like member formed by being sandwiched between molds, and the reinforcing net is embedded in the vicinity of the formed surface. Is.
Further, the reinforcing net-containing plate-like member is characterized in that the reinforcing net is formed of a glass fiber bundle.

  The method for producing a reinforcing net-containing plate-like member according to the present invention comprises contacting a reinforcing net with a supporting portion of a reinforcing net formed on at least one molding die opposed to mold the raw material. In a state where the raw material is inserted between the molding dies, the molding die is closed and the raw material is molded, and the raw material is leaked from the reinforcing net to the molding surface side of the molding die. Thus, a reinforcing net is embedded in the vicinity of the molded surface of the plate-like member.

According to the present invention, the reinforcing net is brought into contact with the supporting portion of the reinforcing net of at least one of the molding molds facing each other, and is inserted between the reinforcing net and the other molding mold. By forming the raw material, the raw material is leaked from the eyes of the reinforcing net to the molding surface side of the molding die so that the reinforcing net is embedded in the vicinity of the surface of the plate member. The plate-like member is firmly reinforced.
As a result, the strength of the plate-like member is greatly improved as compared with a conventional kneaded fiber.
Moreover, even if the reinforcing net is formed with a smooth surface like glass fiber, it does not peel off.

  Further, in the present invention, the reinforcing net is brought into contact with the supporting portion of the reinforcing net of at least one of the molds opposed to each other, and the raw material introduced between the reinforcing net and the other molding mold It is a simple process that only requires molding, and it can be manufactured easily and without much effort, but as described above, the part coated with a spray or the like on the sheet side part has a moisture content and a degree of shrinkage. There is also an advantage that a stable altitude can be maintained for a long time without separation due to differences.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view in which a portion of a reinforcing net-containing plate-like member is cut away, and FIG. 2 is a cross-sectional view of the reinforcing net-containing plate-like member, where reference numeral 1 denotes the reinforcing net-containing plate-like member. Overall.
This reinforcing net-containing plate-like member 1 is made of cement or mortar as a raw material and is formed by a pair of upper and lower molding dies as shown in FIG. 3 and subsequent figures, and a reinforcing net 2 is embedded in a portion near the lower surface. ing.

The reinforcing net 2 is formed by aligning a plurality of thin glass fibers 3 or applying a gentle twist in a lattice form at equal intervals, and fixing each intersection with an adhesive. It is formed in a rough net shape.
On the other hand, a molding die for molding in a state where the reinforcing net 2 is embedded in a portion near the lower surface of the plate-like member 1 is a pair of upper and lower molds 4 and 5, and the upper molding die 4 is illustrated in FIG. The upper molding die 4 is lowered to mold a raw material 6 such as cement or mortar between the upper and lower molding dies 4, 5.
And the support part 7 of the reinforcement net | network 2 is formed in the molding surface (surface) 5a of the lower mold | die 5 for a shaping | molding.
As shown in the drawing, the support portion 7 of the reinforcing net 2 is formed by forming a plurality of mountain-shaped protrusions 8 at equal intervals from the molding surface 5a of the molding die 5 below.

A procedure for manufacturing the plate member 1 with the reinforcing net 2 using the molding dies 4 and 5 formed as described above will be described below with reference to FIGS.
As shown in FIG. 3, the upper molding die 4 is raised to form a raw material charging space S between the lower molding die 5 and the lower molding die 5.
In FIG. 3, the upper and lower molding dies 4, 5 are arranged concentrically. However, by making the upper and lower molding dies 4, 5 movable, The molding device can be automated by opening the upper space of the molding die 5 and automatically supplying the raw material 6 quantitatively from the opened part.

Then, after the reinforcing net 2 is placed on the support portion 7 of the reinforcing net 2 on the upper surface of the lower molding die 5, a raw material 6 such as cement or mortar is put above the reinforcing net 2.
Thereafter, as shown in FIG. 5 through FIG. 4, the upper molding die 4 is lowered to mold a raw material 6 such as cement or mortar.
At this time, the raw material 6 such as cement or mortar pressed by the lower upper molding die 4 wraps around the reinforcing net 2 to the molding surface 5a of the lower molding die 5 and turns around. The charged raw material 6 is molded as the lower surface of the plate-like member 1 on the molding surface 5a of the lower molding die 5.
As a result, the reinforcing net 2 is held by the raw material 6 of the upper member.
The plate-like member 1 formed in this way is cured and dried to become a product.

  In the above example, the support portion 7 of the reinforcing net 2 is formed with a plurality of angled ridges 8 from the molding surface 5a of the lower molding die 5 at equal intervals. For example, a linear member (wire) 8 having a circular cross section as shown in FIG. 6A, or a linear member 8 having a semicircular cross section as shown in FIG. The support portion 7 of the reinforcing net 2 can be formed by a linear member 8 having a square cross section as shown in FIG.

  In addition, in the above example, the support portion 7 of the reinforcing net 2 is formed on the molding surface 5a of the lower molding die 5, but in addition to or instead of this, for the upper molding It goes without saying that it can be provided on the lower surface (molding surface) of the mold 4.

  In the above example, the reinforcing net 2 is made of glass fiber 3, but instead of synthetic fiber such as Kevlar fiber, natural fiber net such as hemp yarn and cotton yarn is used instead. Further, the reinforcing net 2 can be formed of a metal net such as a punching metal or an expanded metal.

It is the perspective view which notched one part of the plate-shaped member for a reinforcement net concerning this invention. It is sectional drawing of the plate-shaped member with a reinforcement net concerning this invention. FIG. 3 is an exploded perspective view of a mold part for molding a reinforcing net-containing plate member according to the present invention. It is the schematic of the manufacturing process of the plate member with a reinforcement net concerning this invention. It is the schematic of the manufacturing process of the plate member with a reinforcement net concerning this invention. It is the schematic which shows the modification of the support part of the reinforcement net in the manufacturing process of the plate-like member with the reinforcement net concerning this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Plate-shaped member 2 ... Reinforcement net 3 ... Glass fiber 4 ... Upper molding die 5 ... Lower molding die 5a ... Molding surface of 5 6. ..Material 7 ... Supporting part 8 ... Projection

Claims (4)

  A plate-shaped member molding die for molding a plate-shaped member by sandwiching a raw material between at least one pair of molding dies, and a support portion for a reinforcing net is formed on the molding surface of at least one molding die A mold for molding a plate-like member containing a reinforcing net.   A plate-like member molded between sandwiching molds, wherein the reinforcing net is embedded in the vicinity of the molded surface.   3. The plate member with a reinforcing net according to claim 2, wherein the reinforcing net is formed of a glass fiber bundle.   The reinforcing net was placed in contact with the supporting portion of the reinforcing net formed on at least one of the molding dies opposed to mold the raw material, and the raw material was put between the molding dies. In this state, the molding die is closed to form the raw material, and the raw material is leaked from the reinforcing net to the molding surface side of the molding die, thereby reinforcing the portion near the molded surface of the plate-like member. A method for producing a reinforcing net-containing plate-like member, characterized in that a net is embedded.

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