JP3723833B2 - Method for forming hollow inorganic base plate - Google Patents
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- JP3723833B2 JP3723833B2 JP2001384973A JP2001384973A JP3723833B2 JP 3723833 B2 JP3723833 B2 JP 3723833B2 JP 2001384973 A JP2001384973 A JP 2001384973A JP 2001384973 A JP2001384973 A JP 2001384973A JP 3723833 B2 JP3723833 B2 JP 3723833B2
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Description
【０００１】
【発明の属する技術分野】
この出願の発明は、中空無機質原板の成形方法に関するものである。さらに詳しくは、この出願の発明は、中空無機質原板にシャープな模様を形成することができ、また、成形時に、中空無機質原板の中空穴部が潰れたり、閉塞したりするおそれがない中空無機質原板の成形方法に関するものである。
【０００２】
【従来の技術】
従来、住宅等の建築物の外壁材等の外装材や、天井材等の内装材として、軽量で断熱性が優れ、かつ、不燃性である中空無機質板が汎用されている。
【０００３】
また、上記中空無機質板を製造する場合には、例えば、中空穴成形用の中子を備えた押出成形機にて押し出し成形して得た中空無機質原板の表面に、エンボスロール、エンボスベルト（キャタピラー式のエンボスベルト）等にて押圧して模様付けしたり、平面プレスにてプレス成形して模様付けしたりして所望の凹凸模様を有する中空無機質原板を形成し、次いで、養生硬化させて中空無機質板を製造していた。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記のように、中空無機質原板の表面に、エンボスロール、エンボスベルト等にて押圧して模様付けした場合には、模様が蛇行したり、ずれたりしてシャープな模様を形成することができず、また、平面プレスにてプレス成形して模様付けした場合には、成形時に、中空無機質原板の中空穴部が潰れたり、閉塞したりすることがあるという問題があった。
【０００５】
また、上記のように、中空無機質原板の中空穴部が潰れたり、閉塞したりした場合には、施工現場において、ボルト・ナットにて締着して取り付け施工できるようにするために、ボルトを締着するナットを予め中空無機質原板の中空穴部に挿入する際に、挿入できないという問題を惹起していた。
【０００６】
この出願の発明は、以上の通りの事情に鑑みて為されたものであり、上記の問題点を解消し、中空無機質原板にシャープな模様を形成することができ、また、成形時に、中空無機質原板の中空穴部が潰れたり、閉塞したりするおそれがない中空無機質原板の成形方法を提供することを解決すべき課題としている。
【０００７】
【課題を解決するための手段】
この出願の発明は、上記の課題を解決するために為されたものであって、第１の発明は、膨脹・収縮可能な筒状袋体の外周胴部に複数枚の形状保持用板体を配設して中空穴形状保持体を形成し、該中空穴形状保持体の筒状袋体を収縮させて中空無機質原板の中空穴部に挿入した後、筒状袋体を膨脹させて形状保持用板体を中空穴部の内周胴部に圧接させると共に、プレス成形して模様付けし、次いで、筒状袋体を収縮させて中空無機質原板の中空穴部から中空穴形状保持体を取り出すことを特徴とする中空無機質原板の成形方法を提供する。
【０００８】
また、第２の発明は、中空穴形状保持体の先端にエアーを吹き出すヘッド部を設け、該ヘッド部からエアーを吹き出してヘッド部をエアースライドさせることによって、中空穴形状保持体を中空無機質原板の中空穴部に挿入する前記の中空無機質原板の成形方法を提供する。
【０００９】
【発明の実施の形態】
この出願の発明は、上記の通りの特徴をもつものであるが、以下、その実施の形態について説明する。
【００１０】
図１（ａ）〜（ｄ）は、この出願の発明の成形方法の一実施例を例示した成形工程図、図２（ａ）、（ｂ）は、この出願の発明の成形方法において使用する中空穴形状保持体の異った実施例を例示した側面図である。
【００１１】
例えば、図１に例示したように、この出願の発明は、軟質合成樹脂、ゴム等の変形自在な材料よりなる膨脹・収縮可能な円筒状、角筒状等の筒状袋体（１）の外周胴部に、金属板、合成樹脂板等よりなる複数枚の形状保持用板体（２）、（２）、…を配設して中空穴形状保持体（３）を形成し、該中空穴形状保持体（３）の筒状袋体（１）を、図１（ｂ）に示すように収縮させて、図１（ｃ）に示す中空無機質原板（４）の中空穴部（５）に矢印（Ａ）にて示すように挿入した後、筒状袋体（１）内部にエアーを吹き込んで、図１（ａ）、（ｄ）に示すように筒状袋体（１）を膨脹させて形状保持用板体（２）、（２）、…を中空穴部（５）の内周胴部に圧接させて中空穴部（５）の形状を保持すると共に、表面に所望の凹凸模様を有する平面プレスにてプレス成形して模様付けし、次いで、筒状袋体（１）を収縮させて中空無機質原板（４）の中空穴部（５）から中空穴形状保持体（３）を取り出すことを特徴とする中空無機質原板の成形方法に関するものである。
【００１２】
なお、この出願の発明において、筒状袋体（１）の外周胴部に複数枚の形状保持用板体（２）、（２）、…を配設する場合には、中空無機質原板（４）の中空穴部（５）の形状に合わせて所望の枚数の形状保持用板体（２）、（２）、…を配設し、例えば、中空穴部（５）の形状が図１（ｃ）に示すように断面四角形の場合には、図１（ａ）、（ｂ）、（ｄ）に示すように８枚の形状保持用板体（２）、（２）、…を配設したり、図２（ａ）、（ｂ）に示すように４枚の形状保持用板体（２）、（２）、…を配設したりし、また、中空穴部の形状が断面円形の場合には、可及的に多数の形状保持用板体を配設すれば良い。
【００１３】
また、筒状袋体（１）を膨脹させたり、収縮させたりする場合には、例えば、筒状袋体（１）の後端部から筒状袋体（１）内部にエアーを吹き込んで筒状袋体（１）を膨脹させたり、筒状袋体（１）内部へのエアーの吹き込みを停止して筒状袋体（１）内部から空気を自然に排出させたり、吸引して強制的に排出させたりして筒状袋体（１）を収縮させれば良い。
【００１４】
また、筒状袋体（１）内部にエアーを吹き込んで筒状袋体（１）を膨脹させる場合には、例えば、プレス成形に先立って予め筒状袋体（１）内部にエアーを吹き込んで筒状袋体（１）を膨脹させておき、膨脹させて中空穴部（５）の形状を保持した状態でプレス成形しても良いし、プレス成形しつつ中空穴部（５）の形状がプレス成形圧力に耐え得るように筒状袋体（１）内部にエアーを吹き込んで筒状袋体（１）を膨脹させても良く、要するに、筒状袋体（１）内部の圧力がプレス成形圧力に耐え得るような圧力にて膨脹させて中空穴部（５）の形状を保持すれば良い。
【００１５】
また、中空穴形状保持体（３）を中空無機質原板（４）の中空穴部（５）に挿入したり、中空穴部（５）から取り出したりする場合には、例えば、中空穴形状保持体（３）の筒状袋体（１）の中心部に、図１（ａ）、（ｂ）、図２（ｂ）に示すような管体よりなる軸体（６）や、図２（ａ）に示すような棒体よりなる軸体（６）を貫通させると共に、筒状袋体（１）の前後端面部にプレート（図示せず）を取り付けたり、図２（ａ）に示すようなシャフト（７）を取り付けたりし、かつ、該プレートまたはシャフト（７）を軸体（６）に固着し、軸体（６）の後端部を後述するようなプッシャーで押すことによって、中空穴形状保持体（３）を中空無機質原板（４）の中空穴部（５）に挿入したり、軸体（６）の後端部を引くことによって、中空穴形状保持体（３）を中空無機質原板（４）の中空穴部（５）から取り出したりするようにすると、中空穴形状保持体（３）の挿入・取り出し作業を円滑に行うことができ、また、中空穴部（５）からの中空穴形状保持体（３）の抜け外れを防止することができるので、好適である。
【００１６】
また、中空無機質原板（４）を製造する場合には、例えば、常法に従って、ポルトランドセメント、高炉セメント、アルミナセメント等の水硬性材料と、珪石粉、フライアッシュ、スラグ、シリカ等の骨材と、パルプ、ロックウール、ビニロン繊維、ポリプロピレン繊維等の補強繊維を主成分とし、所要量の水と混合してなる水硬性原料を、中空穴成形用の中子を備えた押出成形機にて、幅１ｍ、長さ３ｍ、厚み１５〜７０ｍｍ程度の板状に押し出し成形することによって、全長にわたって貫通せる所望本数の中空穴部（５）が形成された中空無機質原板（４）を製造すれば良い。
【００１７】
また、前述のように、中空無機質原板（４）をプレス成形して模様付けすることによって、所望の凹凸模様を形成した中空無機質原板（４）は、常法に従って、オートクレーブ養生等によって養生硬化させて中空無機質板を形成し、必要に応じて、塗料等によって仕上げ塗装を施して使用に供する。
【００１８】
以上の通り、この出願の発明においては、中空無機質原板（４）をプレス成形して模様付けするに際して、膨脹・収縮可能な筒状袋体（１）を中空無機質原板（４）の中空穴部（５）に挿入して膨脹させて中空穴部（５）の形状を保持しつつプレス成形して模様付けしているので、中空無機質原板（４）にシャープな模様を形成することができ、また、成形時に、中空無機質原板（４）の中空穴部（５）が潰れたり、閉塞したりするおそれがない。
【００１９】
図３（ａ）、（ｂ）は、この出願の発明の成形方法の異った実施例を例示した要部拡大成形工程図である。
例えば、図３に例示したように、この出願の発明は、前述の発明において、中空穴形状保持体（３）の先端にエアーを吹き出すヘッド部（８）を設け、ヘッド部（８）のエアー吹き出し部（９）から矢印（Ｂ）にて示すようにエアーを吹き出して該ヘッド部（８）を図３（ａ）に示す状態から図３（ｂ）に示す状態にエアースライドさせ、所謂、中空無機質原板（４）の中空穴部（５）に非接触の状態で移動させることによって、中空穴形状保持体（３）を中空無機質原板（４）の中空穴部（５）に挿入するようにしたことを特徴とする中空無機質原板の成形方法に関するものである。
【００２０】
なお、この出願の発明において、ヘッド部（８）を非接触の状態でエアースライドさせた場合には、ヘッド部（８）に続く筒状袋体（１）も収縮させた状態で中空無機質原板（４）の中空穴部（５）に挿入しているので、中空穴形状保持体（３）も中空無機質原板（４）の中空穴部（５）に非接触の状態で移動させることができるのは勿論である。
【００２１】
また、中空穴形状保持体（３）の先端にヘッド部（８）を設ける場合には、例えば、図３（ｂ）の要部拡大図に示したように、前述の通り中空穴形状保持体（３）中心部を貫通させて取り付けた軸体（６）の先端にヘッド部（８）を設ければ良い。
【００２２】
また、エアーを吹き出してヘッド部（８）をエアースライドさせる場合には、例えば、図３（ａ）、（ｂ）に示すように移動ベルト（１０）に取り付けられたプッシャー（１１）を、前述の通り中空穴形状保持体（３）中心部を貫通させて取り付けた管体よりなる軸体（６）の後端部に当接させ、移動ベルト（１０）を移動させてプッシャー（１１）を矢印（Ｃ）にて示すように移動させることによって、該プッシャー（１１）にて押された軸体（６）を介して中空穴形状保持体（３）を中空無機質原板（４）の中空穴部（５）に挿入すると共に、該挿入時に、軸体（６）を介してヘッド部（８）にエアーを供給してヘッド部（８）のエアー吹き出し部（９）から矢印（Ｂ）にて示すようにエアーを吹き出すことによって、ホバークラフトのようにヘッド部（８）をエアースライドさせれば良い。
【００２３】
また、ヘッド部（８）をエアースライドさせることによって、図３（ｂ）に示すように中空穴形状保持体（３）を中空無機質原板（４）の中空穴部（５）に挿入した後は、前述の通り中空穴形状保持体（３）の筒状袋体（１）内部にエアーを吹き込んで筒状袋体（１）を膨脹させれば良い。
【００２４】
また、上記軸体（６）を介してヘッド部（８）にエアーを供給する場合には、例えば、図３（ａ）矢印（Ｄ）にて示すように、圧力調整装置（１２）および電磁弁（１３）を介して軸体（６）の後端部にエアーを供給し、また、筒状袋体（１）内部にエアーを吹き込む場合には、例えば、図３（ｂ）矢印（Ｅ）にて示すように、圧力調整装置（１２）および電磁弁（１３）を介して筒状袋体（１）の後端部にエアーを吹き込めば良い。
【００２５】
また、図３において、（１４）は、中空穴形状保持体（３）の挿入時におけるたわみを防止するためのたわみ防止用コロである。
以上の通り、この出願の発明においては、中空穴形状保持体（３）の先端に設けたヘッド部（８）からエアーを吹き出してヘッド部（８）をエアースライドさせることによって、中空穴形状保持体（３）を中空無機質原板（４）の中空穴部（５）に挿入しているので、中空穴形状保持体（３）を中空無機質原板（４）の中空穴部（５）に円滑に挿入することができる。
【００２６】
なお、この出願の発明において、筒状袋体の膨脹・収縮機構、中空穴形状保持体の挿入・取り出し機構、プレス成形条件等、詳細については、様々な態様が可能であることは言うまでもない。
【００２７】
【発明の効果】
以上詳しく説明した通り、この出願の発明によって、中空無機質原板にシャープな模様を形成することができ、また、成形時に、中空無機質原板の中空穴部が潰れたり、閉塞したりするおそれがない。
【図面の簡単な説明】
【図１】（ａ）〜（ｄ）は、この出願の発明の成形方法の一実施例を例示した成形工程図である。
【図２】（ａ）、（ｂ）は、この出願の発明の成形方法において使用する中空穴形状保持体の異った実施例を例示した側面図である。
【図３】（ａ）、（ｂ）は、この出願の発明の成形方法の異った実施例を例示した要部拡大成形工程図である。
【符号の説明】
１ 筒状袋体
２ 形状保持用板体
３ 中空穴形状保持体
４ 中空無機質原板
５ 中空穴部
６ 軸体
７ シャフト
８ ヘッド部
９ エアー吹き出し部
１０ 移動ベルト
１１ プッシャー
１２ 圧力調整装置
１３ 電磁弁
１４ たわみ防止用コロ[0001]
BACKGROUND OF THE INVENTION
The invention of this application relates to a method for forming a hollow inorganic raw plate. More specifically, the invention of this application is capable of forming a sharp pattern on a hollow inorganic raw plate, and does not cause a hollow hole portion of the hollow inorganic raw plate to be crushed or blocked during molding. It relates to a molding method.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, lightweight, heat-insulating and non-flammable hollow inorganic plates are widely used as exterior materials such as outer wall materials of buildings such as houses and interior materials such as ceiling materials.
[0003]
In the case of producing the hollow inorganic plate, for example, an embossing roll, an embossing belt (caterpillar) is formed on the surface of the hollow inorganic raw plate obtained by extrusion molding with an extruder equipped with a hollow hole forming core. To form a hollow inorganic base plate having a desired concavo-convex pattern by pressing with a flat embossing belt) or patterning with a flat press, and then curing and curing to form a hollow An inorganic board was manufactured.
[0004]
[Problems to be solved by the invention]
However, as described above, when the pattern is pressed on the surface of the hollow inorganic raw plate with an embossing roll, an embossing belt, etc., the pattern may meander or shift to form a sharp pattern. In addition, when the pattern is formed by press molding with a flat press, there is a problem that the hollow hole portion of the hollow inorganic raw plate may be crushed or closed during molding.
[0005]
In addition, when the hollow hole of the hollow inorganic base plate is crushed or closed as described above, the bolts are tightened with bolts and nuts at the construction site so that they can be installed. When the nut to be fastened is previously inserted into the hollow hole portion of the hollow inorganic raw plate, there has been a problem that it cannot be inserted.
[0006]
The invention of this application has been made in view of the circumstances as described above, can solve the above-mentioned problems, can form a sharp pattern on a hollow inorganic raw plate, It is an object to be solved to provide a method for forming a hollow inorganic raw plate that does not cause the hollow hole portion of the original plate to be crushed or blocked.
[0007]
[Means for Solving the Problems]
The invention of this application has been made to solve the above-mentioned problems, and the first invention is that a plurality of shape-retaining plates are provided on the outer peripheral body of an inflatable / shrinkable cylindrical bag. To form a hollow hole-shaped holding body, and after the cylindrical bag body of the hollow hole-shaped holding body is contracted and inserted into the hollow hole portion of the hollow inorganic raw plate, the cylindrical bag body is expanded and shaped The holding plate is pressed against the inner peripheral body of the hollow hole, press-molded and patterned, and then the cylindrical bag is contracted to take out the hollow hole-shaped holder from the hollow hole of the hollow inorganic raw plate. A method for forming a hollow inorganic raw plate characterized by the above.
[0008]
Further, the second invention is provided with a head part that blows out air at the tip of the hollow hole shape holding body, and air is blown out from the head part to air slide the head part, whereby the hollow hole shape holding body is made into a hollow inorganic original plate. A method for forming the hollow inorganic raw plate to be inserted into the hollow hole is provided.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The invention of this application has the features as described above, and an embodiment thereof will be described below.
[0010]
1A to 1D are molding process diagrams illustrating an embodiment of the molding method of the invention of this application, and FIGS. 2A and 2B are used in the molding method of the invention of this application. It is the side view which illustrated the Example from which the hollow hole shape holding body differed.
[0011]
For example, as illustrated in FIG. 1, the invention of this application relates to an inflatable / shrinkable cylindrical bag or rectangular tube (1) made of a deformable material such as soft synthetic resin or rubber. A plurality of shape-maintaining plate bodies (2), (2),... Made of a metal plate, a synthetic resin plate, etc. are arranged on the outer peripheral body portion to form a hollow hole shape holding body (3). The cylindrical bag body (1) of the hole-shaped holding body (3) is contracted as shown in FIG. 1 (b), and the hollow hole portion (5) of the hollow inorganic base plate (4) shown in FIG. 1 (c). After being inserted as indicated by the arrow (A), air is blown into the cylindrical bag body (1) to expand the cylindrical bag body (1) as shown in FIGS. 1 (a) and 1 (d). The shape-retaining plate (2), (2), ... are pressed against the inner peripheral body of the hollow hole (5) to hold the shape of the hollow hole (5), and a desired uneven pattern is formed on the surface. Have flat Press forming with a press to form a pattern, and then shrinking the cylindrical bag body (1) to take out the hollow hole shape holding body (3) from the hollow hole portion (5) of the hollow inorganic base plate (4). The present invention relates to a method for forming a hollow inorganic raw sheet.
[0012]
In the invention of this application, when a plurality of shape-retaining plates (2), (2),... Are arranged on the outer peripheral body of the cylindrical bag (1), the hollow inorganic base plate (4 ) In accordance with the shape of the hollow hole portion (5), a desired number of shape-retaining plates (2), (2),... Are arranged, for example, the shape of the hollow hole portion (5) is shown in FIG. In the case of a square cross section as shown in c), eight shape-retaining plates (2), (2),... are arranged as shown in FIGS. 1 (a), (b) and (d). As shown in FIGS. 2 (a) and 2 (b), four shape-retaining plates (2), (2),... Are arranged, and the shape of the hollow hole is circular in cross section. In this case, as many shape-retaining plates as possible may be provided.
[0013]
When the tubular bag body (1) is expanded or contracted, for example, air is blown into the tubular bag body (1) from the rear end of the tubular bag body (1). The cylindrical bag body (1) is inflated, the blow of air into the cylindrical bag body (1) is stopped and air is discharged naturally from the inside of the cylindrical bag body (1), or it is forced to suck The cylindrical bag body (1) may be contracted by discharging it.
[0014]
In the case where air is blown into the tubular bag body (1) to expand the tubular bag body (1), for example, air is blown into the tubular bag body (1) in advance prior to press molding. The cylindrical bag body (1) may be inflated and press-molded in a state of being expanded and retaining the shape of the hollow hole portion (5). The cylindrical bag body (1) may be expanded by blowing air into the cylindrical bag body (1) so as to withstand the press molding pressure. In short, the pressure inside the cylindrical bag body (1) is press-molded. What is necessary is just to expand by the pressure which can endure a pressure, and to hold | maintain the shape of a hollow hole part (5).
[0015]
Further, when the hollow hole shape holder (3) is inserted into the hollow hole portion (5) of the hollow inorganic base plate (4) or taken out from the hollow hole portion (5), for example, the hollow hole shape holder is used. In the central part of the cylindrical bag body (1) of (3), a shaft body (6) made of a tubular body as shown in FIGS. 1 (a), 1 (b) and 2 (b), or FIG. 2), and a plate (not shown) is attached to the front and rear end surfaces of the cylindrical bag (1), or as shown in FIG. 2 (a). By attaching the shaft (7), fixing the plate or shaft (7) to the shaft body (6), and pushing the rear end of the shaft body (6) with a pusher as described later, the hollow hole By inserting the shape holder (3) into the hollow hole (5) of the hollow inorganic base plate (4) or pulling the rear end of the shaft body (6), If the hole shape holder (3) is taken out from the hollow hole portion (5) of the hollow inorganic base plate (4), the insertion and removal of the hollow hole shape holder (3) can be performed smoothly. Moreover, it is possible to prevent the hollow hole shape holding body (3) from coming off from the hollow hole portion (5), which is preferable.
[0016]
Moreover, when manufacturing a hollow inorganic original plate (4), according to a conventional method, for example, hydraulic materials such as Portland cement, blast furnace cement, and alumina cement, and aggregates such as silica powder, fly ash, slag, and silica A hydraulic raw material composed mainly of reinforcing fibers such as pulp, rock wool, vinylon fiber, polypropylene fiber, etc., mixed with a required amount of water, in an extrusion molding machine equipped with a hollow hole forming core, What is necessary is just to manufacture the hollow inorganic raw plate (4) in which the desired number of hollow hole parts (5) which can penetrate through the full length were formed by extruding in the plate shape of width 1m, length 3m, and thickness 15-70mm. .
[0017]
Further, as described above, the hollow inorganic original plate (4) formed with a desired uneven pattern by press-molding and patterning the hollow inorganic original plate (4) is cured and cured by autoclave curing or the like according to a conventional method. A hollow inorganic board is formed, and if necessary, it is finished with a paint or the like for use.
[0018]
As described above, in the invention of this application, when the hollow inorganic base plate (4) is press-molded and patterned, the inflatable / shrinkable cylindrical bag (1) is formed into the hollow hole portion of the hollow inorganic base plate (4). Since it is inserted into (5) and expanded to form a pattern by press molding while maintaining the shape of the hollow hole (5), a sharp pattern can be formed on the hollow inorganic base plate (4), Moreover, there is no possibility that the hollow hole portion (5) of the hollow inorganic raw plate (4) is crushed or closed during molding.
[0019]
3A and 3B are main part enlarged molding process diagrams illustrating examples in which the molding method of the invention of this application is different.
For example, as illustrated in FIG. 3, in the invention of this application, the head portion (8) that blows air is provided at the tip of the hollow hole-shaped holding body (3), and the air of the head portion (8) is provided. Air is blown out from the blowing portion (9) as indicated by an arrow (B), and the head portion (8) is air slid from the state shown in FIG. 3 (a) to the state shown in FIG. 3 (b). The hollow hole shape holder (3) is inserted into the hollow hole portion (5) of the hollow inorganic original plate (4) by moving in a non-contact state to the hollow hole portion (5) of the hollow inorganic original plate (4). The present invention relates to a method for forming a hollow inorganic raw sheet characterized by the above.
[0020]
In the invention of this application, when the head portion (8) is air slid in a non-contact state, the hollow inorganic base plate is also in a state in which the cylindrical bag body (1) following the head portion (8) is also contracted. Since it is inserted into the hollow hole portion (5) of (4), the hollow hole shape holding body (3) can also be moved in a non-contact state to the hollow hole portion (5) of the hollow inorganic raw plate (4). Of course.
[0021]
When the head portion (8) is provided at the tip of the hollow hole shape holding body (3), for example, as shown in the enlarged view of the main part of FIG. (3) What is necessary is just to provide a head part (8) in the front-end | tip of the shaft body (6) attached through the center part.
[0022]
Further, when air is blown and the head portion (8) is air slid, for example, the pusher (11) attached to the moving belt (10) as shown in FIGS. The hollow hole-shaped holding body (3) is brought into contact with the rear end portion of the shaft body (6) made of a tubular body that is attached so as to penetrate the center portion, and the moving belt (10) is moved to move the pusher (11). By moving as indicated by an arrow (C), the hollow hole-shaped holding body (3) is moved through the shaft (6) pushed by the pusher (11) to form a hollow hole in the hollow inorganic base plate (4). Is inserted into the part (5), and at the time of the insertion, air is supplied to the head part (8) through the shaft body (6), and the air blowing part (9) of the head part (8) is moved to the arrow (B). By blowing out air as shown, Sea urchin head portion (8) it is sufficient to air slide.
[0023]
Moreover, after inserting the hollow hole shape holding body (3) into the hollow hole portion (5) of the hollow inorganic raw plate (4) as shown in FIG. 3 (b) by air-sliding the head portion (8). As described above, the cylindrical bag body (1) may be expanded by blowing air into the cylindrical bag body (1) of the hollow hole-shaped holding body (3).
[0024]
Further, when supplying air to the head portion (8) via the shaft (6), for example, as shown by an arrow (D) in FIG. When air is supplied to the rear end portion of the shaft body (6) via the valve (13) and air is blown into the cylindrical bag body (1), for example, the arrow (E) in FIG. ), Air may be blown into the rear end portion of the cylindrical bag body (1) through the pressure adjusting device (12) and the electromagnetic valve (13).
[0025]
In FIG. 3, reference numeral (14) denotes a deflection preventing roller for preventing deflection when the hollow hole-shaped holding body (3) is inserted.
As described above, in the invention of this application, the hollow hole shape is maintained by blowing air from the head part (8) provided at the tip of the hollow hole shape holder (3) and air-sliding the head part (8). Since the body (3) is inserted into the hollow hole (5) of the hollow inorganic original plate (4), the hollow hole shape holding body (3) is smoothly inserted into the hollow hole (5) of the hollow inorganic original plate (4). Can be inserted.
[0026]
In the invention of this application, it goes without saying that various modes are possible in detail, such as the expansion / contraction mechanism of the cylindrical bag body, the insertion / removal mechanism of the hollow hole-shaped holding body, and press molding conditions.
[0027]
【The invention's effect】
As described above in detail, according to the invention of this application, a sharp pattern can be formed on the hollow inorganic raw plate, and the hollow hole portion of the hollow inorganic raw plate is not crushed or closed during molding.
[Brief description of the drawings]
FIGS. 1A to 1D are molding process diagrams illustrating an embodiment of the molding method of the invention of this application.
FIGS. 2A and 2B are side views illustrating different embodiments of the hollow hole shape holder used in the molding method of the invention of this application. FIGS.
FIGS. 3A and 3B are main part enlarged molding process diagrams illustrating different embodiments of the molding method of the invention of this application. FIGS.
[Explanation of symbols]
DESCRIPTION OF
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001384973A JP3723833B2 (en) | 2001-12-18 | 2001-12-18 | Method for forming hollow inorganic base plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001384973A JP3723833B2 (en) | 2001-12-18 | 2001-12-18 | Method for forming hollow inorganic base plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003181818A JP2003181818A (en) | 2003-07-02 |
| JP3723833B2 true JP3723833B2 (en) | 2005-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001384973A Expired - Fee Related JP3723833B2 (en) | 2001-12-18 | 2001-12-18 | Method for forming hollow inorganic base plate |
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| Country | Link |
|---|---|
| JP (1) | JP3723833B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106956350B (en) * | 2017-03-23 | 2019-03-08 | 荆门创佳机械科技有限公司 | The production method that a kind of surface has reeded air-entrained concrete building block |
| AT526454A1 (en) * | 2022-09-14 | 2024-03-15 | Sdo Zt Gmbh | Formwork element, formwork and method for producing a continuous opening in a concrete slab, and slab produced therewith |
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2001
- 2001-12-18 JP JP2001384973A patent/JP3723833B2/en not_active Expired - Fee Related
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| JP2003181818A (en) | 2003-07-02 |
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