JPH0752115A - Molding method and molding device for hydraulic inorganic molded form - Google Patents
Molding method and molding device for hydraulic inorganic molded formInfo
- Publication number
- JPH0752115A JPH0752115A JP20625693A JP20625693A JPH0752115A JP H0752115 A JPH0752115 A JP H0752115A JP 20625693 A JP20625693 A JP 20625693A JP 20625693 A JP20625693 A JP 20625693A JP H0752115 A JPH0752115 A JP H0752115A
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- Japan
- Prior art keywords
- molding
- mold
- split
- hydraulic inorganic
- split mold
- Prior art date
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- Moulds, Cores, Or Mandrels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、水硬性無機質成形物の
成形方法及び成形装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for molding a hydraulic inorganic molded product.
【０００２】[0002]
【従来の技術】セメント、石膏、珪酸カルシウム形成材
料等の水硬性無機物を主成分とする材料で成形した成形
物は、通常、曲げや荷重により引張り応力が加わると破
損しやすいと言う欠点を有している。そこで、セメント
瓦などの薄板状成形物の場合、通常、水硬性無機物に合
成繊維、天然繊維、ガラス繊維等の補強繊維を予め混合
した水硬性無機物成形材料（以下、「成形材料」とのみ
記す）を用いて成形するようにしている。2. Description of the Related Art Molded products molded from materials mainly composed of hydraulic inorganic substances such as cement, gypsum and calcium silicate forming materials have the drawback that they tend to break when tensile stress is applied by bending or load. is doing. Therefore, in the case of a thin plate shaped article such as a cement roof tile, a hydraulic inorganic material molding material (hereinafter, referred to as "molding material" only) in which a reinforcing fiber such as a synthetic fiber, a natural fiber or a glass fiber is premixed with a hydraulic inorganic material. ) Is used for molding.
【０００３】特に、セメント瓦などのように荷重や衝撃
が主として一方向からかかるような成形物は、荷重や衝
撃がかかる側で補強繊維の配合率を多くし、荷重圧縮が
集中的にかかる部分の補強繊維の配合率を他方より少な
くするなど、補強繊維の混合率を成形物の厚み方向で異
なるようにすることが試みられている。即ち、出来るだ
け有効に補強繊維を配置して不必要な補強繊維の使用を
避け、製品の軽量化や原材料費の抑制を図るようにして
いる。Particularly, in a molded article such as a cement roof tile to which a load or impact is applied mainly from one direction, the proportion of the reinforcing fibers is increased on the side where the load or impact is applied, and the load compression is intensively applied. It has been attempted to make the mixing ratio of the reinforcing fibers different in the thickness direction of the molded product, for example, by decreasing the mixing ratio of the reinforcing fibers of the other. That is, the reinforcing fibers are arranged as effectively as possible to avoid the unnecessary use of the reinforcing fibers, and the weight of the product is reduced and the raw material cost is suppressed.
【０００４】従来、水硬性無機物成形材料の成形方法の
１例として、一方の型と、型面に多数の水抜き孔が設け
られている他方の型とを閉合して形成される型窩内に成
形材料を充填し、吸引脱水することにより成形材料を賦
形する吸引成形法が提案されている（特公昭６１−５１
５２１号公報）が、この方法の場合、成形材料の流動性
を良くするために成形材料の含水率を高める必要があ
り、成形材料が配合組成面で制約されるという問題点が
あった。Conventionally, as an example of a method for molding a hydraulic inorganic molding material, a mold cavity formed by closing one mold and the other mold having a large number of drain holes on the mold surface. A suction molding method has been proposed in which the molding material is filled with the molding material and is dehydrated by suction (Japanese Patent Publication No. 61-51).
No. 521), this method has a problem that the water content of the molding material needs to be increased in order to improve the fluidity of the molding material, and the molding composition is restricted in terms of compounding composition.
【０００５】そこで、本発明者は、成形材料の含水率を
抑えても成形でき、且つ、補強繊維の配合率を厚み方向
で異なるように成形する方法として、図３及び図４に示
すような成形装置１５，２０を用いて行う方法（特願平
５−１７６５４３号参照）を先に提案している。Therefore, the present inventor has proposed a molding method as shown in FIG. 3 and FIG. 4 as a molding method in which the molding material can be molded even if the water content is suppressed, and the mixing ratio of the reinforcing fibers is different in the thickness direction. A method (see Japanese Patent Application No. 5-176543) that uses the molding apparatuses 15 and 20 has been previously proposed.
【０００６】この方法は、壁面に沿って多数の水抜き孔
１０が穿孔された第１分割型２と、型面に沿って弾性膨
縮体１９が設けられた第２分割型３ａとを閉合すること
で形成される型窩内に、成形材料８を充填し、前記水抜
き孔１０から吸引脱水するとともに前記弾性膨縮体１９
と第２分割型３ａの型面との間に加圧媒体を圧入して弾
性膨縮体１９を第１分割型２側へ膨出させて成形材料８
を圧縮成形する成形工程を少なくとも２回繰り返すとと
もに、後の成形工程において、型窩の厚みが直前の成形
工程の型窩の厚みより厚くなるような第２分割型３ｂを
用い、かつ、直前の成形工程の成形材料８と異なる組成
の成形材料を型窩内に充填する構成とされている。According to this method, the first split mold 2 having a large number of water drain holes 10 drilled along the wall surface and the second split mold 3a provided with the elastic expansion / contraction body 19 along the mold surface are closed. The molding material 8 is filled in the mold cavity formed by the above process, sucked and dehydrated through the water drain hole 10, and the elastic expansion / contraction body 19 is formed.
A pressurizing medium is press-fitted between the mold and the mold surface of the second split mold 3a to bulge the elastic expansion / contraction body 19 toward the first split mold 2 to form the molding material 8
The molding step of compression molding is repeated at least twice, and in the subsequent molding step, the second split mold 3b is used such that the thickness of the mold cavity is thicker than the thickness of the mold cavity in the immediately preceding molding step, and A molding material having a composition different from that of the molding material 8 in the molding step is filled in the mold cavity.
【０００７】又、この方法では、補強繊維の配合率の異
なる層を的確な厚みで成形したり、層毎で断面形状が異
なる製品の成形を可能にする為、複数の第２分割型３
ａ、３ｂを用い、図３に示すように回転軸７を中心にし
て第２分割型３ａ、３ｂを回転させるか、図４に示すよ
うに基板１４に沿って第２分割型３ａ、３ｂをスライド
させる事により、所望の第２分割型３ａ、３ｂを第１分
割型２と対面させ、閉合することが出来るような構成と
されている。Further, according to this method, it is possible to mold layers having different blending ratios of reinforcing fibers with an appropriate thickness, or to mold products having different cross-sectional shapes for each layer.
a and 3b, the second split molds 3a and 3b are rotated around the rotary shaft 7 as shown in FIG. 3, or the second split molds 3a and 3b are moved along the substrate 14 as shown in FIG. By sliding, the desired second split molds 3a and 3b can be made to face the first split mold 2 and can be closed.
【０００８】[0008]
【発明が解決しようとする課題】しかし、本発明者が先
に提案した上記方法では、複数の第２分割型３ａ、３ｂ
のそれぞれの型面に弾性膨縮体１９を個々に設けなけれ
ばならず、弾性膨縮体１９の取り付け作業や維持管理が
煩雑で作業性が悪いという問題点がある。又、金型製作
費についても、第１分割型２用及び第２分割型３ａ，３
ｂ用の金型製作費だけでなく、弾性膨縮体１９用の金型
製作費も必要であり、初期投資額が高くなるという問題
点もある。However, in the above method previously proposed by the present inventor, a plurality of second split molds 3a, 3b are used.
Since the elastic expansion / contraction body 19 must be individually provided on each mold surface, there is a problem that the work of attaching the elastic expansion / contraction body 19 and the maintenance thereof are complicated and the workability is poor. Also, regarding the die manufacturing cost, the first split mold 2 and the second split mold 3a, 3
Not only the cost for manufacturing the mold for b, but also the cost for manufacturing the mold for the elastic expansion / contraction body 19 is required, and there is a problem that the initial investment amount becomes high.
【０００９】本発明は、上記従来の問題点を解決するた
め、組成の異なる層を複数層備え、且つ、各層の厚み及
び形状を設定どおり有する成形物を的確に成形すること
ができる水硬性無機質成形物の成形方法、及び、維持管
理が簡単で作業性が良く、初期投資額も適正で、且つ、
この成形方法を確実に実施できる成形装置を提供するこ
とを目的としている。In order to solve the above-mentioned conventional problems, the present invention is a hydraulic inorganic material having a plurality of layers having different compositions and capable of accurately molding a molded article having the thickness and shape of each layer as set. Molding method of molded product, easy maintenance and workability, good initial investment amount, and
It is an object of the present invention to provide a molding apparatus that can reliably carry out this molding method.
【００１０】[0010]
【課題を解決するための手段】このような目的を達成す
るために、請求項１に記載の発明（以下、「第１発明」
と記す）にかかる水硬性無機質成形物の成形方法は、壁
面に沿って多数の水抜き孔が穿孔された第１分割型と、
水硬性無機物成形材料の注入口と加圧媒体である空気の
圧入口が型面に開口している第２分割型とを閉合するこ
とで形成される型窩内に、成形材料を充填し、前記水抜
き孔から吸引脱水するとともに前記空気の圧入口から空
気を圧入して成形材料を圧縮成形する成形工程を有する
ことを特徴とする構成とした。In order to achieve such an object, the invention described in claim 1 (hereinafter, referred to as "first invention").
The molding method of the hydraulic inorganic molded article according to (1) is a first split mold in which a large number of water drainage holes are bored along the wall surface,
Filling the molding material into the mold cavity formed by closing the inlet of the hydraulic inorganic molding material and the second split mold in which the pressure inlet of the air, which is the pressurizing medium, is open on the mold surface, The method is characterized by including a molding step of sucking and dehydrating from the water draining hole and pressurizing air from the air pressure inlet to compression-mold a molding material.
【００１１】又、請求項２に記載の発明（以下、「第２
発明」と記す）にかかる水硬性無機質成形物の成形方法
は、請求項１に記載の成形工程を少なくとも２回繰り返
すとともに、後の成形工程において、型窩の厚みが直前
の成形工程の型窩の厚みより厚くなるような第２分割型
を用い、且つ、直前の成形工程の成形材料と異なる組成
の成形材料を型窩内に充填することを特徴とする構成と
した。The invention according to claim 2 (hereinafter, referred to as "second
Invention)), the method for molding a hydraulic inorganic molded article, wherein the molding step according to claim 1 is repeated at least twice, and in the subsequent molding step, the thickness of the mold cavity is the mold cavity of the molding step immediately before. A second split mold having a thickness larger than that of No. 1 is used, and a molding material having a composition different from that of the molding material of the immediately preceding molding step is filled in the mold cavity.
【００１２】上記第１発明及び第２発明の構成におい
て、第２分割型の型面に開口している水硬性無機物成形
材料の注入口に連結している成形材料注入管と空気の圧
入口に連結している空気圧入管は、共通であってもよい
し、別々に独立していてもよい。In the constructions of the first and second inventions described above, the molding material injection pipe connected to the injection port of the hydraulic inorganic molding material opened on the mold surface of the second split mold and the air pressure inlet. The air press-in pipes connected to each other may be common or may be separate and independent.
【００１３】上記第１発明及び第２発明の成形工程にお
いて、吸引脱水と空気による圧縮とは同時に行ってもよ
いが、先ず、吸引脱水を行い、一定時間経過後に空気に
よる圧縮を開始することが好ましい。In the molding steps of the first and second aspects of the invention, suction dehydration and air compression may be carried out at the same time, but first, suction dehydration is carried out, and after a certain period of time, air compression is started. preferable.
【００１４】吸引圧力は、特に限定されないが、−５０
０〜−７００ｍｍＨｇ程度が好ましい。また、圧縮圧力
は、特に限定されないが、２０〜４０ｋｇ／ｃｍ2 程度
が好ましい。The suction pressure is not particularly limited, but it is -50.
About 0 to -700 mmHg is preferable. The compression pressure is not particularly limited, but is preferably about 20 to 40 kg / cm 2 .
【００１５】また、上記第１発明及び第２発明の構成に
おいて、第１分割型には、型面に沿うように伸張性を有
する濾過材を設けておくことが好ましい。濾過材の材質
としては、特に限定されないが、外力が加えられる際に
寸法が伸びて面積が拡張する材料が好ましく、例えば、
巻縮糸を使用した布地、多孔質ゴム等が挙げられる。In the constructions of the first and second inventions, it is preferable that the first split mold is provided with a filter material having extensibility along the mold surface. The material of the filtering material is not particularly limited, but a material whose dimension is expanded and its area is expanded when an external force is applied is preferable, for example,
Examples include cloth using crimped yarn, porous rubber, and the like.
【００１６】成形材料としては、水硬性無機物、補強繊
維を主成分として含み、必要に応じて、骨材としての
砂、砂利、急硬材、顔料等や、一般の無機成形体の製造
に用いることができるものを適宜混合したもの等が挙げ
られる。As the molding material, a hydraulic inorganic substance and reinforcing fibers are contained as main components, and if necessary, sand, gravel, rapid hardening material, pigment, etc. as an aggregate, and used for the production of general inorganic moldings The thing which mixed the thing which can be suitably mentioned, etc. are mentioned.
【００１７】上記水硬性無機物は、セメント、石膏、珪
酸カルシウム形成材料等の水和反応によって硬化する材
料から選ばれる。The hydraulic inorganic material is selected from materials that harden by hydration reaction, such as cement, gypsum, and calcium silicate-forming materials.
【００１８】上記補強繊維としては、特に限定されない
が、例えば、鉱物繊維、ガラス繊維、動植物繊維、合成
繊維等が挙げられる。The reinforcing fiber is not particularly limited, but examples thereof include mineral fiber, glass fiber, animal and vegetable fiber, and synthetic fiber.
【００１９】請求項３に記載の発明（以下、「第３発
明」と記す）にかかる水硬性無機質成形物の成形装置
は、壁面に沿って多数の水抜き孔が穿孔された第１分割
型と、第１分割型と閉合して互いに異なる厚みの型窩を
形成する複数の第２分割型とを備え、各第２分割型は、
１つの回転軸を中心にして型面を外側に向けて回転自在
に支持され、且つ、水硬性無機物成形材料の注入口及び
空気の圧入口が型面に設けられている構成とした。According to a third aspect of the present invention (hereinafter, referred to as "third invention"), a molding device for a hydraulic inorganic molded article is a first split mold in which a large number of drainage holes are formed along a wall surface. And a plurality of second split molds that are closed with the first split molds to form mold cavities having mutually different thicknesses, each second split mold comprising:
The mold surface is supported rotatably around one rotation axis with the mold surface facing outward, and a mold inorganic material molding material inlet and air pressure inlet are provided on the mold surface.
【００２０】請求項４に記載の発明（以下、「第４発
明」と記す）にかかる水硬性無機質成形物の成形装置
は、壁面に沿って多数の水抜き孔が穿孔された第１分割
型と、第１分割型と閉合して互いに異なる厚みの型窩を
形成する複数の第２分割型とを備え、各第２分割型は、
第１分割型と対面して設けられる１つの基板に、スライ
ド自在に支持され、且つ、水硬性無機物成形材料の注入
口及び空気の圧入口が型面に設けられている構成とし
た。According to a fourth aspect of the present invention (hereinafter, referred to as "fourth invention"), a molding device for a hydraulic inorganic molded article is a first split mold in which a large number of drainage holes are formed along a wall surface. And a plurality of second split molds that are closed with the first split molds to form mold cavities having mutually different thicknesses, each second split mold comprising:
One substrate provided facing the first split mold is slidably supported, and a hydraulic inorganic molding material inlet and an air pressure inlet are provided on the die surface.
【００２１】[0021]
【作用】上記第１発明の構成によれば、第１分割型と第
２分割型とを閉合し、型窩内へ所定の配合にされた水硬
性無機物成形材料を充填し、吸引により水硬性無機物成
形材料の余剰水分を水抜き孔から脱水するとともに、空
気を送り込み、成形材料を圧縮賦形することにより、所
望の水硬性無機質成形物を簡便に得ることが出来る。According to the structure of the first invention, the first split mold and the second split mold are closed, the mold cavity is filled with the hydraulic inorganic molding material having a predetermined composition, and the hydraulic property is obtained by suction. A desired hydraulic inorganic molded product can be easily obtained by dehydrating excess water of the inorganic molding material from the water draining hole and sending air to compress and shape the molding material.
【００２２】上記第２発明の構成によれば、複数の第２
分割型を用い、先ず、第１分割型と１番目の第２分割型
とを閉合し、型窩内へ所定の配合にされた水硬性無機物
成形材料を充填し、吸引により水硬性無機物成形材料の
余剰水分を水抜き孔から脱水するとともに、空気を送り
込み、成形材料を圧縮賦形する第１の工程を実施する。According to the structure of the second invention, a plurality of second
Using the split mold, first, the first split mold and the first second split mold are closed, and a hydraulic inorganic molding material having a predetermined composition is filled into the mold cavity, and the hydraulic inorganic molding material is sucked. Excess moisture is dehydrated from the water drain hole, and air is sent in to perform the first step of compression-molding the molding material.
【００２３】次いで、吸引脱水及び圧縮を停止するとと
もに、第１分割型と１番目の第２分割型との閉合を解除
した後、２番目の第２分割型を第１分割型と閉合させ
る。Next, the suction dehydration and the compression are stopped, the closing of the first split mold and the first second split mold is released, and then the second second split mold is closed with the first split mold.
【００２４】２番目の第２分割型は、第１分割型と閉合
した時、第１分割型と１番目の第２分割型との閉合によ
って形成される型窩より厚みの厚い型窩が形成されるよ
うになっているので、第１の工程において、第１分割型
の壁面に沿って形成された賦形物と２番目の第２分割型
との間に空間が生じる。When the second second split mold is closed with the first split mold, a mold cavity thicker than the mold cavity formed by the closing of the first split mold and the first second split mold is formed. Therefore, in the first step, a space is created between the shaped object formed along the wall surface of the first split mold and the second second split mold.
【００２５】この空間に先の賦形物と異なる組成の成形
材料を充填し、吸引により成形材料の余剰水分を水抜き
孔から脱水するとともに、空気を送り込み成形材料を圧
縮賦形する第２の工程を実施する。In this space, a molding material having a composition different from that of the above-mentioned shaped material is filled, and excess water of the molding material is dewatered by suction, and at the same time, air is sent to compress the molding material. Carry out the process.
【００２６】そして、１番目の水硬性無機物成形材料か
らなる賦形物に２番目の水硬性無機物成形材料からなる
賦形物が所定の厚みで正確に積層された成形物を得るこ
とが出来る。即ち、前記空間によって２番目の層の厚み
が正確に確保されることになる。Then, it is possible to obtain a molded product in which the first molded product made of the hydraulic inorganic molding material and the second molded product made of the hydraulic inorganic molding material are accurately laminated with a predetermined thickness. That is, the space ensures that the thickness of the second layer is accurately ensured.
【００２７】又、さらに、３番目、４番目と第２分割型
をさらに増やしていけば、各層が所望の厚みに形成され
た多層構造の成形物を正確に成形することが出来るよう
になる。Further, by further increasing the number of third, fourth and second split molds, it becomes possible to accurately mold a multi-layered molded product in which each layer is formed to a desired thickness.
【００２８】上記第３発明の構成によれば、回転軸を中
心にして第２分割型を回転させるだけで、所望の第２分
割型を第１分割型と対面させ、閉合することが出来る。According to the structure of the third invention, the desired second split mold can be faced with the first split mold and closed by simply rotating the second split mold about the rotation axis.
【００２９】上記第４発明の構成によれば、第２分割型
を基板に沿ってスライドさせるだけで、所望の第２分割
型を第１分割型と対面させ、閉合することが出来る。According to the structure of the fourth invention, the desired second split mold can be opposed to the first split mold and closed by simply sliding the second split mold along the substrate.
【００３０】[0030]
【実施例】以下に、本発明の第２発明を、その実施例を
あらわす図面を参照しつつ詳しく説明する。The second invention of the present invention will be described in detail below with reference to the drawings showing the embodiments thereof.
【００３１】図１（ａ）〜（ｃ）は第３発明にかかる成
形装置の１実施例をあらわしている。図に示すように、
この成形装置１は、第１分割型（下型）２と２つの第２
分割型（上型）３ａ，３ｂとを備えている。FIGS. 1A to 1C show an embodiment of a molding apparatus according to the third invention. As shown in the figure,
This molding apparatus 1 includes a first split mold (lower mold) 2 and two second molds.
It has split dies (upper dies) 3a and 3b.
【００３２】第１分割型２には、図示していない脱水排
気ポンプに連通する多数の水抜き孔１０が穿孔されてい
る。The first split mold 2 is provided with a large number of water drain holes 10 which communicate with a dehydration exhaust pump (not shown).
【００３３】第２分割型３ａ，３ｂは、型面が背中合わ
せになるように配置されているとともに、回転軸７を中
心にして回転し、第１分割型２と対面した状態で第１分
割型２と閉合するようになっている。The second split molds 3a and 3b are arranged such that the mold surfaces are back to back and rotate about the rotary shaft 7 to face the first split mold 2 and the first split mold. It is supposed to close with 2.
【００３４】又、一方の第２分割型３ａと他方の第２分
割型３ｂは、一方の第２分割型３ａと第１分割型２とを
閉合して形成される型窩の厚みが、他方の第２分割型３
ｂと第１分割型２とを閉合して形成される型窩の厚みよ
り薄くなるように設計されている。The one second divided mold 3a and the other second divided mold 3b have a mold cavity formed by closing the one second divided mold 3a and the first divided mold 2 with the other Second split type 3
It is designed to be thinner than the thickness of the mold cavity formed by closing b and the first split mold 2.
【００３５】さらに、２つの第２分割型３ａ，３ｂに
は、それぞれ水硬性無機物成形材料の注入口５及び空気
の圧入口５が型面に開口している。尚、図中、４は成形
材料の注入管及び空気の圧入管である。Further, the two second split molds 3a and 3b are respectively provided with a hydraulic inorganic molding material injection port 5 and an air pressure port 5 on the mold surface. In the figure, 4 are injection pipes for molding material and press-in pipes for air.
【００３６】この成形装置１は以上のような構成になっ
ているので、先ず、図１（ａ）に示すように、回転軸７
を中心にして回転させて一方の第２分割型３ａを第１分
割型２に対面するように配置させたのち、図１（ｂ）に
示すように成形材料の注入管４から第１の成形材料８を
型窩内へ注入充填する。Since the molding apparatus 1 is constructed as described above, first, as shown in FIG.
And then the second split mold 3a on one side is arranged so as to face the first split mold 2, and then, as shown in FIG. Material 8 is filled into the mold cavity.
【００３７】そして、水抜き孔１０から吸引して第１の
成形材料８の余剰水分を脱水するとともに、空気を第２
分割型３ａに圧入して水硬性無機物成形材料８を圧縮賦
形する。Then, the excess water in the first molding material 8 is dewatered by sucking through the water draining hole 10, and the air is discharged into the second molding material 8.
The hydraulic inorganic molding material 8 is pressed into the split mold 3a to be shaped by compression.
【００３８】次に、第１分割型２と第２分割型３ａとの
閉合を解除し、回転軸７を中心にして回転させ、他方の
第２分割型３ｂを第１分割型２に対面させたのち、図１
（ｃ）に示すように第１分割型２と第２分割型３ｂとを
閉合する。Next, the first split mold 2 and the second split mold 3a are released from the closed state and are rotated about the rotary shaft 7, and the other second split mold 3b is made to face the first split mold 2. After that, Figure 1
As shown in (c), the first split mold 2 and the second split mold 3b are closed.
【００３９】この閉合によって、第２分割型３ｂと第１
の成形材料８によって形成された賦形物１１との間の空
間１２に第２の成形材料を注入充填し、水抜き孔１０か
ら吸引して第２の成形材料の余剰水分を脱水するととも
に、空気を第２分割型３ｂに圧入して第２の水硬性無機
物成形材料を圧縮賦形し、厚み方向に異なる組成からな
る所望の厚みの層を備えた成形物が成形できる。By this closing, the second split mold 3b and the first split mold 3b
The second molding material is injected and filled in the space 12 between the shaped object 11 formed by the molding material 8 and the water is removed from the drain hole 10 to remove the excess water of the second molding material. Air is press-fitted into the second split mold 3b to compression-form the second hydraulic inorganic molding material, and a molding having a layer having a desired thickness and having a different composition in the thickness direction can be molded.
【００４０】しかも、この成形装置１は、回転軸７を介
して２つの第２分割型３ａ，３ｂが一体になっていると
ともに、回転軸７を中心にして回転することで、第１分
割型２と正確に対面するようになっているので、装置自
体がコンパクトで設置場所をとらず、又、２つの第２分
割型３ａ，３ｂの交換作業も簡単である。Moreover, in this molding apparatus 1, the two second split molds 3a and 3b are integrated via the rotary shaft 7, and the first split mold is rotated by rotating around the rotary shaft 7. Since the device directly faces the device 2, the device itself is compact and does not take up much space for installation, and the replacement work of the two second split molds 3a and 3b is easy.
【００４１】図２（ａ）〜（ｃ）は第４発明にかかる成
形装置の１実施例をあらわしている。この成形装置１３
は、２つの第２分割型３ａ，３ｂが基板１４にスライド
自在に設けられていること以外は、図１の成形装置１と
略同様になっている。FIGS. 2A to 2C show an embodiment of the molding apparatus according to the fourth invention. This molding device 13
Is substantially the same as the molding apparatus 1 of FIG. 1 except that the two second split molds 3a and 3b are slidably provided on the substrate 14.
【００４２】従って、この成形装置１３によれば、図２
（ａ）に示すように、先ず、第１分割型２と第２分割型
３ａとを閉合して図１の成形装置１と同様に、型窩内へ
注入充填された第１の成形材料８を水抜き孔１０から脱
水するとともに、空気を第２分割型３ａに圧入して圧縮
賦形したのち、図２（ｂ）に示すように、第１分割型２
と第２分割型３ａとの閉合を解除し、他方の第２分割型
３ｂをスライドさせて第１分割型２に対面させる。Therefore, according to this molding apparatus 13, as shown in FIG.
As shown in (a), first, the first splitting material 2 and the second splitting die 3a are closed and the first molding material 8 injected and filled into the mold cavity as in the molding apparatus 1 of FIG. 2 is dehydrated from the water draining hole 10 and air is press-fitted into the second split mold 3a for compression shaping. Then, as shown in FIG.
And the second split mold 3a are released from each other, and the other second split mold 3b is slid to face the first split mold 2.
【００４３】次に、第１分割型２と他方の第２分割型３
ｂとを閉合し、空間１２に第２の成形材料を注入充填し
たのち、脱水するとともに空気を圧入して、第２の成形
材料を圧縮賦形し、厚み方向に異なる組成からなる所望
の厚みの層を備えた成形物が成形できる。Next, the first split mold 2 and the other second split mold 3
b is closed, and the space 12 is filled with the second molding material, and then dehydrated and air is press-fitted to compress and shape the second molding material to obtain a desired thickness composed of different compositions in the thickness direction. It is possible to mold a molded article provided with the layer of.
【００４４】しかも、この成形装置１３は、基板１４に
第２分割型３ａ，３ｂがスライド自在に設けられて装置
自体がコンパクトで設置場所をとらない。又、２つの第
２分割型３ａ、３ｂが基板１４にスライド自在に支持さ
れているので、スライドさせるだけで、２つの第２分割
型３ａ，３ｂを簡単に交換できる。Moreover, in the molding apparatus 13, the second split molds 3a and 3b are slidably provided on the substrate 14, and the apparatus itself is compact and does not take up a place for installation. Further, since the two second split dies 3a and 3b are slidably supported by the substrate 14, the two second split dies 3a and 3b can be easily replaced by simply sliding them.
【００４５】（実施例１）表１に示す第１の水硬性無機
物成形材料Ａと第２の水硬性無機物成形材料Ｂとを用意
し、表２の型寸法で図１と同型の成形装置１を用いて成
形物を成形した。 （実施例２）表１に示す第１の水硬性無機物成形材料Ａ
と第２の水硬性無機物成形材料Ｂとを用意し、表２の型
寸法で図２と同型の成形装置１３を用いて成形物を成形
した。 （比較例１）表１に示す第１の水硬性無機物成形材料Ａ
と第２の水硬性無機物成形材料Ｂとを用意し、表２の型
寸法で図３に示すような成形装置１５を用いて成形物を
成形した。 （比較例２）表１に示す第１の水硬性無機物成形材料Ａ
と第２の水硬性無機物成形材料Ｂとを用意し、表２の型
寸法で図４に示すような成形装置２０を用いて成形物を
成形した。Example 1 A first hydraulic inorganic material molding material A and a second hydraulic inorganic material molding material B shown in Table 1 were prepared, and a molding apparatus 1 having the same mold size as shown in FIG. A molded product was molded using. (Example 2) First hydraulic inorganic molding material A shown in Table 1
And a second hydraulic inorganic material molding material B were prepared, and a molded product having the mold size shown in Table 2 was molded using the molding device 13 of the same mold as that shown in FIG. (Comparative Example 1) First hydraulic inorganic molding material A shown in Table 1
And a second hydraulic inorganic molding material B were prepared, and a molded product was molded using the molding apparatus 15 shown in FIG. (Comparative Example 2) First hydraulic inorganic molding material A shown in Table 1
And a second hydraulic inorganic molding material B were prepared, and a molded product was molded with the mold size shown in Table 2 by using a molding device 20 as shown in FIG.
【００４６】[0046]
【表１】 [Table 1]
【００４７】上記実施例１，２及び比較例１，２で得ら
れた成形物の生産スピード（秒／枚）及び曲げ強度（ｋ
ｇ／ｃｍ2 ）を表２に示した。The production speed (sec / sheet) and bending strength (k) of the molded articles obtained in Examples 1 and 2 and Comparative Examples 1 and 2 above.
The g / cm 2 ) is shown in Table 2.
【００４８】又、上記実施例１，２及び比較例１，２で
用いた成形装置の清掃等に要すメンテナンス時間（分／
週）、弾性膨縮体の交換時間（分／回）及び弾性膨縮体
の耐久性（成形枚数）も併せて表２に示した。Further, the maintenance time (minutes / minute) required for cleaning the molding apparatus used in Examples 1 and 2 and Comparative Examples 1 and 2 described above.
Table 2 also shows the replacement time (minutes / times) of the elastic expansion / contraction body and the durability (number of moldings) of the elastic expansion / contraction body.
【００４９】[0049]
【表２】 [Table 2]
【００５０】表２から、実施例１，２の場合、比較例
１，２に比べて、得られた成形物の生産スピード及び曲
げ強度は同等であるにもかかわらず、成形装置のメンテ
ナンス時間は大幅に短縮され、弾性膨縮体の交換時間や
弾性膨縮体の耐久性に対する配慮は不要であることがわ
かる。From Table 2, in the case of Examples 1 and 2, although the production speed and the bending strength of the obtained molded products were equivalent to those of Comparative Examples 1 and 2, the maintenance time of the molding apparatus was It is significantly shortened, and it is understood that it is not necessary to consider the replacement time of the elastic expansion / contraction body and the durability of the elastic expansion / contraction body.
【００５１】本発明は、上記の実施例に限定されない。
例えば、上記の実施例では、第２分割型３ａ，３ｂの断
面形状が略相似形であったが、各層の断面形状が異なる
成形物を成形する時には、第２分割型の断面形状を異形
にしてもよい。The present invention is not limited to the above embodiments.
For example, in the above-mentioned embodiment, the sectional shapes of the second split molds 3a and 3b are substantially similar, but when molding a molded product in which the cross-sectional shapes of the layers are different, the cross-sectional shape of the second split mold is changed. May be.
【００５２】[0052]
【００５３】第１発明にかかる水硬性無機質成形物の成
形方法は、水硬性無機物成形材料を吸引脱水するととも
に空気を圧入して賦形することにより、簡便に所望の水
硬性無機質成形物を得ることが出来る。In the method for molding a hydraulic inorganic molded article according to the first aspect of the present invention, a desired hydraulic inorganic molded article can be easily obtained by sucking and dehydrating the hydraulic inorganic molding material and pressurizing air to shape. You can
【００５４】第２発明にかかる水硬性無機質成形物の成
形方法は、実施例に見られる如く、組成の異なる層がそ
れぞれ所望の断面形状及び厚みに積層された水硬性無機
質成形物を薄肉であっても正確に成形することが出来
る。The method for molding a hydraulic inorganic molded product according to the second aspect of the present invention is, as shown in the examples, a thin hydraulic inorganic molded product in which layers having different compositions are laminated in desired cross-sectional shapes and thicknesses. However, it can be accurately molded.
【００５５】第３発明及び第４発明にかかる水硬性無機
質成形物の成形装置は、以上のように構成されているの
で、第２発明にかかる成形方法を確実に実施できること
は勿論のこと、装置自体はコンパクトで設置場所をとら
ず、維持管理も簡単で作業性が良く、初期投資額も適正
なものである。Since the molding apparatus for the hydraulic inorganic molded article according to the third and fourth aspects of the invention is constructed as described above, it goes without saying that the molding method according to the second aspect of the invention can be carried out with certainty. The equipment itself is compact, does not take up much space for installation, is easy to maintain, has good workability, and the initial investment is appropriate.
【００５６】[0056]
【図１】第３発明にかかる水硬性無機質成形物の成形装
置の１実施例をあらわす断面図であって、この装置を用
いて第２発明の成形方法を実施する場合を工程順に表し
ている。FIG. 1 is a cross-sectional view showing one embodiment of a molding apparatus for a hydraulic inorganic molded article according to the third invention, showing the case of carrying out the molding method of the second invention using this apparatus in the order of steps. .
【図２】第４発明にかかる水硬性無機質成形物の成形装
置の１実施例をあらわす断面図であって、この装置を用
いて第２発明の成形方法を実施する場合を工程順に表し
ている。FIG. 2 is a cross-sectional view showing an embodiment of a molding apparatus for a hydraulic inorganic molded article according to the fourth invention, showing the order of steps when carrying out the molding method of the second invention using this apparatus. .
【図３】先に提案された水硬性無機質成形物の成形装置
の１例をあらわす断面図である。FIG. 3 is a cross-sectional view showing an example of the previously proposed molding apparatus for a hydraulic inorganic molded article.
【図４】先に提案された水硬性無機質成形物の成形装置
の別の１例をあらわす断面図である。FIG. 4 is a cross-sectional view showing another example of the previously proposed molding apparatus for a hydraulic inorganic molded product.
１ 成形装置 ２ 第１分割型 ３ａ，３ｂ 第２分割型 ４ 成形材料の注入管及び空気の圧入管 ５ 成形材料の注入口及び空気の圧入口 ６ 切換え弁 ７ 回転軸 ８ 成形材料 ９ 濾過材 １０ 水抜き孔 １１ 賦形物 １２ 空間 １３ 成形装置 １４ 基板 １５ 成形装置 １６ 成形材料の注入管 １７ 加圧媒体の圧入管 １８ 加圧媒体の圧入口 １９ 弾性膨縮体 ２０ 成形装置 1 Molding Device 2 First Split Mold 3a, 3b Second Split Mold 4 Molding Material Injection Pipe and Air Press-in Pipe 5 Molding Material Injection Port and Air Pressurization Port 6 Switching Valve 7 Rotating Shaft 8 Molding Material 9 Filtering Material 10 Drainage hole 11 Shaped object 12 Space 13 Molding device 14 Substrate 15 Molding device 16 Molding material injection pipe 17 Pressurizing medium press-fitting pipe 18 Pressurizing medium pressurizing port 19 Elastic expansion / contraction body 20 Molding device
Claims (4)
た第１分割型と、水硬性無機物成形材料の注入口及び空
気の圧入口が型面に開口している第２分割型とを閉合す
ることで形成される型窩内に、水硬性無機物成形材料を
充填し、前記水抜き孔から吸引脱水するとともに、第２
分割型の空気圧入口から空気を型窩内に圧入して水硬性
無機物成形材料を圧縮成形する成形工程を有することを
特徴とする水硬性無機質成形物の成形方法。1. A first split mold in which a large number of water drain holes are bored along a wall surface, and a second split mold in which a hydraulic inorganic molding material injection port and an air pressure port are opened on a mold surface. The mold cavity formed by closing the above is filled with a hydraulic inorganic material molding material, sucked and dehydrated through the water drain hole, and
A method for molding a hydraulic inorganic molded article, comprising a molding step of press-fitting air into a mold cavity from a split mold air pressure inlet to compression-mold a hydraulic inorganic molding material.
２回繰り返すとともに、後の成形工程において、型窩の
厚みが直前の成形工程の型窩の厚みより厚くなるような
第２分割型を用い、かつ、直前の成形工程の水硬性無機
物成形材料と異なる組成の水硬性無機物成形材料を型窩
内に充填することを特徴とする水硬性無機質成形物の成
形方法。2. A second split mold in which the molding step according to claim 1 is repeated at least twice, and in the subsequent molding step, the thickness of the mold cavity is thicker than the thickness of the mold cavity in the immediately preceding molding step. A method for molding a hydraulic inorganic molded article, which comprises using a hydraulic inorganic molding compound having a composition different from that of the hydraulic inorganic molding material used in the immediately preceding molding step in the mold cavity.
た第１分割型と、第１分割型と閉合して互いに異なる厚
みの型窩を形成する複数の第２分割型とを備え、各第２
分割型は、１つの回転軸を中心にして型面を外側に向け
て回転自在に支持され、且つ、水硬性無機物成形材料の
注入口及び空気の圧入口が型面に設けられていることを
特徴とする成形装置。3. A first split mold having a large number of water drainage holes formed along a wall surface, and a plurality of second split molds that are closed with the first split mold to form mold cavities having mutually different thicknesses. , Each second
The split mold is rotatably supported with the mold surface facing outward with one rotation axis as a center, and a hydraulic inorganic molding material injection port and air pressure inlet are provided on the mold surface. Characterizing molding equipment.
た第１分割型と、第１分割型と閉合して互いに異なる厚
みの型窩を形成する複数の第２分割型とを備え、各第２
分割型は、第１分割型と対面して設けられる１つの基板
に、スライド自在に支持され、且つ、水硬性無機物成形
材料の注入口及び空気の圧入口が型面に設けられている
ことを特徴とする成形装置。4. A first split mold having a large number of water drainage holes formed along a wall surface, and a plurality of second split molds which are closed with the first split mold to form mold cavities having mutually different thicknesses. , Each second
The split mold is slidably supported on one substrate provided facing the first split mold, and an injection port for a hydraulic inorganic molding material and an air pressure port are provided on the mold surface. Characterizing molding equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20625693A JPH0752115A (en) | 1993-08-20 | 1993-08-20 | Molding method and molding device for hydraulic inorganic molded form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20625693A JPH0752115A (en) | 1993-08-20 | 1993-08-20 | Molding method and molding device for hydraulic inorganic molded form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0752115A true JPH0752115A (en) | 1995-02-28 |
Family
ID=16520326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20625693A Pending JPH0752115A (en) | 1993-08-20 | 1993-08-20 | Molding method and molding device for hydraulic inorganic molded form |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0752115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6803529B2 (en) | 2000-05-11 | 2004-10-12 | Ishida Co., Ltd. | Conveyor device, and article testing unit having the same |
-
1993
- 1993-08-20 JP JP20625693A patent/JPH0752115A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6803529B2 (en) | 2000-05-11 | 2004-10-12 | Ishida Co., Ltd. | Conveyor device, and article testing unit having the same |
| US6958452B2 (en) | 2000-05-11 | 2005-10-25 | Ishida Co., Ltd. | Conveyor apparatus and commodity inspecting equipment utilizing the same |
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