JPH07304017A - Female mold for molding concrete product with three-dimensional decorating surface - Google Patents

Abstract

PURPOSE:To realize the representation of a three-dimensionally patterned product, the unevenness of which is different from that of a male mold by a method wherein a female mold layer provided with uneven pattern representing surface is arbitrarily and elastically deformed by laminating elastic material to the predetermined male mold. CONSTITUTION:A female mold for molding a concrete product with three- dimensionally decorating surface consists of a peripheral form 10, an elastic female mold layer 20 having an uneven pattern representing surface disposed in tension on the inner periphery of the peripheral form, a plurality of rigid partitioning layers 21 dispersingly and integrally laminated onto the rear of the uneven pattern representing surface of the female mold and deforming means 31, 32, 33 and 34, which are provided between the peripheral form and each partitioning layer and deforms the elastic female layer through the partitioning layer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a female mold for molding concrete products with a three-dimensional decorative surface for decorating the walls of buildings (houses, buildings) and retaining walls.

[0002]

2. Description of the Related Art The applicant of the present invention has proposed a similar method for producing a female mold in Japanese Patent Application Laid-Open No. 3-82503 (Japanese Patent Application Laid-Open No. 5-29523). This prior proposal encloses a male frame that faces upward with a peripheral frame and closes the upper surface of the peripheral frame with a top plate, and a solidifying synthetic resin or an internal plastic space surrounded by the male frame, the peripheral frame, and the top plate. The rubber fluid is injected and filled from the inlet provided in the upper plate, and after the fluid is solidified, the solidified layer is released from the male mold integrally with the upper plate and the peripheral frame.

[0003]

In the above-mentioned prior proposal, the top plate is separated from above the male concave-convex three-dimensional decorative surface, and the fluid is injected into the internal space between the top plate and the male three-dimensional decorative surface. ,
Since it is filled to manufacture a female mold, it is necessary to inject a large amount of fluid such as rubber when the unevenness of the three-dimensional decorative surface is large,
In addition to increasing the cost, it takes a long time for the fluid injected into the internal space to solidify and demold. Further, the thickness of the produced female mold is thick in the concave portion of the male three-dimensional decorative surface and thin in the convex portion, and is not uniform. Therefore, when molding a concrete product with this female mold and curing it with steam,
Since heat is not transferred to the part that is in contact with the female thick part, it takes a long time to cure and wastes energy to make steam. Further, in order to form an internal space for injecting and filling the fluid, it is necessary to fix an upper surface plate that seals the upper surface of the frame to the peripheral frame. It ’s very different. Moreover, since it is not possible to see through the interior space, fluid such as rubber is injected into the interior space.
Even if there is a part not filled with the fluid, it is not possible to know it, and it is only after demolding that it is a defective female mold, and there is a situation in which the female mold must be recreated, resulting in trouble, time, material Can be wasted. Further, the female mold can be expressed only on the surface of the concrete product by the three-dimensional decorative surface having the same unevenness as the male mold.

[0004]

The present invention was developed for the purpose of solving the problems of the above-mentioned prior proposals.
As a female mold for molding concrete products with a three-dimensional decorative surface,
It is provided between the elastic female mold layer, a plurality of hard partition layers dispersed and integrally laminated on the back of the uneven pattern expressing surface of the inner peripheral female layer, and between the individual partition layers and the surrounding frame. , And a deforming means for deforming the elastic female layer through the partition layer. The deforming means for deforming the elastic female layer is a crosspiece or plate attached to the upper surface of the peripheral frame, an anchor that is planted in each hard partition layer and is tightened to the crosspiece or plate, or the crosspiece or plate and each. It is preferably composed of an interposer sandwiched between the hard partition layer and the hard partition layer.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In each of the illustrated embodiments, 1 is a three-dimensional decorative surface 2
The male type | mold fixed on the surface plate 4 is shown facing upward. Male 1
The material is arbitrary, and its size is also arbitrary, but for example, it is a rectangle having a long side of about 3 m and a short side of about 2 m, and the periphery thereof is a pyramidal surface that expands downward.

Reference numeral 10 denotes a peripheral frame which is placed on the surface plate 4 and surrounds the male die 1 and an upper portion thereof, and the lower half of the inner periphery thereof is an inclined surface 11 which is in close contact with the pyramidal surface around the male die. ing. The material of the peripheral frame may be any metal such as steel, synthetic resin, ceramic, wood, or the like.

Reference numeral 20 denotes a thickness 3 to 3 stretched on the inner circumference of the peripheral frame.
As long as it is an elastic female layer having a thickness of about 20 mm, and the material of the female layer can be laminated and sprayed on the male three-dimensional decorative surface 2 many times and coated to have a predetermined thickness, Natural rubber, synthetic rubber, or elastic synthetic resin such as soft urethane, silicone, or epoxy may be used.

For example, a mold release agent is sprayed or applied onto the male type three-dimensional decorative surface 2, and when it is dried or solidified, the male type 1 is covered with a peripheral frame 10 and placed on a surface plate. An elastic material such as natural rubber, synthetic rubber, or synthetic resin such as urethane resin, silicon resin, or epoxy resin is sprayed or coated many times on the male type three-dimensional decorative surface 2 to have a thickness of about 3 to 20 mm,
Before the elastic material hardens, one or two or more kinds of silica sand, iron fiber, carbon fiber, glass fiber are dispersed as a reinforcing material to form a strong skin layer with the elastic material and the reinforcing material,
This may be the elastic female layer. Usually, the elastic material is solidified in about 3 to 30 seconds after spraying or applying, so that the reinforcing material is sprayed immediately after spraying or applying. After the elastic female mold layer 20 is formed in this way, it is separated from the inner circumference of the surrounding frame and separated from each other by a gap such as length and width to disperse the hard urethane, fiber reinforced polyester, fiber reinforced epoxy, etc. A plurality of hard partition layers 21 are provided by spraying or coating about 3 to 20 mm and stacking. The distance between the hard partition layers and the distance from the inner circumference of the peripheral frame are arbitrary, but may be about 10 to 30 mm.

Since the elastic female mold layer 20 is stretched around the inner circumference of the peripheral frame 10, the female mold shown in FIGS. A locking member 12 projecting in the direction is provided. The locking member may be a piece of a solid mesh material such as a metal lath or expanded metal,
In the illustrated embodiment, a long metal bar 13 and a short leg 14
Is made of a handrail member attached in a comb shape by welding or the like, and the legs 14 are fixed to the inner circumference of the peripheral frame by adhesion, screwing, welding or the like. The elastic female layer 20 laminated on the three-dimensional decorative surface 2 by spraying, painting or the like is fixed to the inner circumference of the peripheral frame by filling the locking member 13 in the peripheral portion.

In order to manufacture this female mold, since the male mold 1 is already known, the male mold 1 is known to be positioned slightly above the circumference of the male three-dimensional decorative surface 2 on the inner circumference of the peripheral frame 10 surrounding the male mold. Stop member 1
2 is preliminarily attached inward, and the peripheral frame is placed around the male mold and placed on the surface plate 4, and the elastic female mold layer 20 is formed on the male three-dimensional decorative surface 2 as described above. At this time, the locking member 12 is filled with the peripheral portion of the elastic female die layer 20, and when the female die layer is solidified, the peripheral frame is removed from the male die.

Further, the female type peripheral frame shown in FIG. 3 has support grooves 15 on the inner four sides, and a compressible material 16 such as rubber or sponge is housed in the support grooves 15 at the inner side. The support groove 15 is located immediately above the male die 1. Then, the elastic female mold layer 2 formed by spraying or coating on the male three-dimensional decorative surface 2
No. 0 is fixed by making the peripheral edge portion project into the support groove 15. Although it is preferable that the entire peripheral edge of the female layer 20 is projected into the support groove 15, only a part of the thickness may be projected into the support groove.

In order to manufacture this female mold, since the male mold 1 is known, support grooves 15 are previously formed along the circumference of the male-shaped three-dimensional decorative surface 2 on the four sides of the inner circumference of the peripheral frame. The compressible material 16 is fitted in the inside of the support groove. Then, the male frame is covered with a peripheral frame and placed on the surface plate 4, and as described above, the mold release agent is attached to the three-dimensional decorative surface 2 and then the elastic female layer 20 is sprayed and formed by coating or the like. At that time, the material of the release layer is also put in the support groove 15 to fix the female mold layer to the inner periphery of the peripheral frame, and when the female mold layer is solidified, the peripheral frame is released from the male mold.

An elastic deformation means 30 for elastically deforming the elastic female layer 20 is provided between the peripheral frame 10 and the hard partition layer 21 via the hard partition layer. The elastic deformation means of the embodiment shown in FIGS. An anchor 33 which is planted upwards on each of the ligaments 21 and penetrates the crosspiece 31 and the plate 32 upward and is fastened to the crosspiece 31 and the plate 32 from above and below by a nut 34. .

The anchor 33 is a ball joint type or the like which can be swung so that the anchor 33 can vertically pass upward and penetrate the crosspiece or the plate regardless of how the hard partition layer 21 is inclined. The base portion of the socket or the like may be embedded and fixed in the layer when the hard partition layer 21 is formed, or may be fixed on the completed partition layer by adhesion or other means.

When a concrete product is manufactured using the above-mentioned female mold, the female mold layer 20 is oriented toward the open part in a vertical mold box 41 whose open side is closed by a dam plate 42 as shown in FIG. The peripheral frame 10 is housed in the
The crosspieces 31 and the plates 3 of the anchors 33 of the individual hard partition layers 21
The fixing position with respect to 2 is adjusted by the nut 34, whereby a certain rigid partition layer is pushed toward the mold space 40, and another rigid partition layer is pulled from the mold space in reverse, and an elastic female mold is formed. It is possible to remove the weir plate 42 in the open part of the form box 41 after changing the unevenness of the female mold layer within the elastic limit of the layer and attaching the mold release agent to the elastic female mold layer, the inner periphery of the peripheral frame and the dam plate. Then, the ready-mixed concrete is poured from above into the mold space 40 closed by the female mold layer and the dam plate to fill it. In addition, you may arrange | position a reinforcing bar in the formwork space 40 as needed. When the ready-mixed concrete filled in the mold space is solidified, the weir plate 42 is removed and the mold is removed. An inclined chamfer for joints is formed around the product by the inclined surface 11 on the inner circumference of the peripheral frame.

As shown in FIG. 5, the elastically deforming means 30 includes a stone block, a foamed resin block, etc. sandwiched between the crosspiece 31, the plate 32 and each of the hard partition plates 21, as shown in FIG. It may be a lump 35 or a plate 36 having irregularities. Each time the product is molded, the concavities and convexities of the elastic female mold layer 20 are changed by sandwiching these lumps or plates between another hard partition layer and the crosspiece or plate. Molding and demolding of concrete products with ready-mixed concrete are as described above. In this case, it is possible to save the labor for planting the anchor 33 on the hard partition layer 21.

As shown in FIG. 3, when the peripheral edge portion of the elastic female die layer 20 is projected into the support groove 15 on the inner periphery of the peripheral frame to hold the female die layer on the inner periphery of the peripheral frame, the curing is carried out. Even if the female mold layer is largely expanded by heating as compared with the surrounding frame, the female mold layer 20 compresses and expands the sponge material in the back of the supporting groove, so that the female mold layer is distorted and the product being cured, It is possible to prevent the surrounding frame from being damaged.

[0018]

The thickness of the elastic female layer 20 according to the present invention is almost uniform along the male type three-dimensional decorative surface 2 except for the special portion, so that the amount of material used is small and the time is short. Since it is solidified by, the female mold can be manufactured in a short time, and since spraying or coating is performed while visually observing, there is no room for defective products. Furthermore, when molding and curing concrete products,
Since the thickness is uniform, the heat of steam can be uniformly applied to the surface of the product, and the curing time is shortened. Further, since the female layer 20 is thin and the upper surface of the peripheral frame 10 is open, it is lightweight,
Easy to handle.

Furthermore, the irregular deformation of the elastic female mold layer 20 can be arbitrarily changed by the elastic deformation means 30 through the hard partition layer 21 to form a concrete product in which the three-dimensional decorative surface is variously changed by one female mold. it can.

[Brief description of drawings]

FIG. 1 is an enlarged vertical sectional view of a part of a manufacturing state of a first embodiment of a female mold.

FIG. 2 is an enlarged plan view of an essential part of the female die shown in FIG.

FIG. 3 is an enlarged vertical sectional view of a part of the manufacturing state of the second embodiment of the female mold.

FIG. 4 is a vertical cross-sectional view of an example of a molded state of a concrete product by a female mold.

FIG. 5 is a vertical cross-sectional view of another example of the molded state of the concrete product by the female mold.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Male type 2 Male type three-dimensional decorative surface 4 Surface plate 10 Surrounding frame 11 Inclined surface 12 Locking member 13 Metal rod 14 Leg 15 Support groove 16 Compressible material 20 Elastic female layer 21 Hard partition layer 30 Elastic deformation means 31 Crosspieces 32 Plates 33 Anchors 34 Nuts 35 Lumps (Interposers) 36 Plates with irregularities (Interposers) 40 Formwork space 41 Formwork box (horizontal) 42 Formwork box (vertical) 43 Formwork panel

Claims (3)

[Claims] 1. A peripheral frame, an elastic female layer having an uneven pattern expressing surface stretched on the inner circumference of the peripheral frame, and dispersed and integrally laminated on the back of the concave pattern expressing surface of the female layer. A solid decorative surface comprising a plurality of hard partition layers, and a deforming means that is provided between each partition layer and the surrounding frame and that deforms the elastic female layer through the partition layers. A female mold for molding concrete products. 2. The female die for molding a concrete product with a three-dimensional decorative surface according to claim 1, wherein the deforming means for deforming the elastic female die layer is a crosspiece or plate attached to the upper surface of the peripheral frame, and each hard section. A female mold for molding a concrete product with a three-dimensional decorative surface, characterized by comprising an anchor that is planted in a pavement layer and is fastened to the crosspiece or plate. 3. The female mold for molding a concrete product with a three-dimensional decorative surface according to claim 1, wherein the means for deforming the elastic female mold layer is a crosspiece or plate attached to the upper surface of the peripheral frame, and the crosspiece or plate. A method for producing a female mold for molding a concrete product with a three-dimensional decorative surface, characterized by comprising: an interposer sandwiched between the hard partition layer and each hard partition layer.