JPH04327906A - Manufacture of hydraulic inorganic molded material - Google Patents
Manufacture of hydraulic inorganic molded materialInfo
- Publication number
- JPH04327906A JPH04327906A JP9708591A JP9708591A JPH04327906A JP H04327906 A JPH04327906 A JP H04327906A JP 9708591 A JP9708591 A JP 9708591A JP 9708591 A JP9708591 A JP 9708591A JP H04327906 A JPH04327906 A JP H04327906A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding material
- hydraulic inorganic
- force
- upper mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000012778 molding material Substances 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims 2
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000000546 pharmaceutical excipient Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 229920002978 Vinylon Polymers 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Landscapes
- Producing Shaped Articles From Materials (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
製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing hydraulic inorganic molded articles.
【０００２】0002
【従来の技術】一般に、セメント、石膏、珪酸カルシウ
ムなど、水和反応によって硬化する水硬性無機物を成分
とする成形材料は、水硬性無機物に水を含有させ、必要
に応じて繊維補強材としてガラス繊維などの無機質繊維
、動植物繊維、合成繊維などの有機質繊維、骨材として
砂、砂利などが含有されて構成されている。[Prior Art] In general, molding materials containing hydraulic inorganic materials that harden through hydration reactions, such as cement, gypsum, and calcium silicate, are made by adding water to the hydraulic inorganic material and using glass as a fiber reinforcing material as needed. It is composed of inorganic fibers such as fibers, organic fibers such as animal and plant fibers, and synthetic fibers, and sand, gravel, etc. as aggregates.
【０００３】このような成形材料を使用して成形物を成
形するには、上型と下型で形成されるキャビティに伸張
濾過材を介在させて水硬性無機質成形材料を一定圧力で
注入し、伸張濾過材を下型の型面に沿わせた状態でその
外側から吸引することにより、成形材料を脱水して賦形
させた後、養生硬化させている（特公昭６１−５１５２
１号公報参照）。[0003] In order to mold a molded product using such a molding material, a hydraulic inorganic molding material is injected at a constant pressure into a cavity formed by an upper mold and a lower mold, with an elongated filter material interposed therebetween. The stretching filter material is placed along the mold surface of the lower mold and suction is applied from the outside to dehydrate the molding material, shape it, and then cure and harden it.
(See Publication No. 1).
【０００４】0004
【発明が解決しようとする課題】しかしながら、このよ
うな製造方法においては、キャビティ、特に上型に凹凸
などの偏肉部が形成されていると、その偏肉部の成形材
料を下型側から脱水することになるため、その部分の脱
水が十分に行われずにうまく成形することができず、歩
留りが低下する問題があった。[Problems to be Solved by the Invention] However, in such a manufacturing method, if uneven thickness parts such as unevenness are formed in the cavity, especially the upper mold, the molding material of the uneven thickness part is removed from the lower mold side. Since dehydration is required, there is a problem in that the dehydration in that part is not sufficiently performed and molding cannot be performed well, resulting in a decrease in yield.
【０００５】本発明は、このような問題点に鑑みてなさ
れたもので、複雑な形状のキャビティであっても確実に
成形することのできる水硬性無機質成形物の製造方法を
提供するものである。The present invention has been made in view of these problems, and provides a method for producing a hydraulic inorganic molded product that can be reliably molded even if the cavity has a complicated shape. .
【０００６】[0006]
【課題を解決するための手段】本発明は、多数の水抜孔
を形成した上型と、多数の水抜孔を形成した下型とを型
閉めし、下型に固定された伸張濾過材と上型に固定され
た伸張濾過材との間に水硬性無機質成形材料を圧入した
後、上型および下型の外側からそれぞれ吸引することに
より成形材料を脱水して賦形するように構成したことを
特徴とするものである。[Means for Solving the Problems] The present invention provides an upper mold in which a large number of water drainage holes are formed and a lower mold in which a large number of water drainage holes are formed. After the hydraulic inorganic molding material is press-fitted between the stretch filter material fixed to the mold, the molding material is dehydrated and shaped by suction from the outside of the upper mold and the lower mold. This is a characteristic feature.
【０００７】[0007]
【作用】伸張濾過材を固定した上型と伸張濾過材を固定
した下型とを型閉めした後、成形材料を圧入してそれぞ
れの伸張濾過材を上型の型面および下型の型面に沿わせ
つつ下型と上型で形成されるキャビティに充填する。次
いで、上型および下型それぞれの外側から真空吸引する
ことにより、成形材料を脱水して賦形し、その賦形物を
養生硬化する。[Operation] After closing the upper mold to which the stretchable filter material is fixed and the lower mold to which the stretchable filter material is fixed, the molding material is press-fitted and each stretchable filter material is attached to the mold surface of the upper mold and the mold surface of the lower mold. Fill the cavity formed by the lower mold and upper mold while following the directions. Next, the molding material is dehydrated and shaped by vacuum suction from the outside of each of the upper and lower molds, and the shaped material is cured and hardened.
【０００８】この結果、複雑な形状を有する成形物であ
っても、キャビティに充填された成形材料から脱水する
ことができ、成形物を確実に成形することができる。As a result, even if the molded product has a complicated shape, water can be removed from the molding material filled in the cavity, and the molded product can be reliably molded.
【０００９】[0009]
【実施例】以下、本発明の実施例を図面を参照して説明
する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
【００１０】図１において、１は成形装置を示しており
、この成形装置１は、成形型２と、この成形型２に成形
材料を供給する供給装置３と、成形型２に供給された成
形材料を脱水する脱水装置４から構成されている。In FIG. 1, 1 indicates a molding device, and this molding device 1 includes a mold 2, a supply device 3 for supplying molding material to the mold 2, and a molding device 3 for supplying molding material to the mold 2. It consists of a dewatering device 4 that dehydrates the material.
【００１１】成形型２は、型面に多数の水抜孔５を形成
した上型６と、型面に多数の水抜孔７を形成した下型８
からなり、上型６と下型８とを型閉めした際、賦形物形
状に適合するキャビティが形成される。そして、上型６
には、後述する成形材料の供給装置３に連通する供給管
９がキャビティまで接続されている。また、上型６およ
び下型８には、それぞれ伸張性材料で形成された伸張濾
過材１０，１１がやや張った状態で固定されている。な
お、上型６に固定された伸張性濾過材１０は、供給管９
の吐出口に対向する部分が開口されており、その周囲が
供給管９の吐出口回りに図示しないリングによって固定
されている。したがって、成形材料がキャビティに供給
されると、伸張濾過材１０，１１はそれぞれ上型６およ
び下型８の型面に沿って伸張できるようになっている。The mold 2 includes an upper mold 6 in which a large number of drainage holes 5 are formed on the mold surface, and a lower mold 8 in which a large number of drainage holes 7 are formed in the mold surface.
When the upper mold 6 and the lower mold 8 are closed, a cavity matching the shape of the excipient is formed. And upper mold 6
A supply pipe 9 communicating with a molding material supply device 3, which will be described later, is connected to the cavity. Furthermore, stretchable filter media 10 and 11 made of a stretchable material are fixed to the upper mold 6 and the lower mold 8 in a slightly stretched state, respectively. Note that the extensible filter material 10 fixed to the upper mold 6 is connected to the supply pipe 9
The portion facing the outlet of the supply pipe 9 is open, and the periphery thereof is fixed around the outlet of the supply pipe 9 by a ring (not shown). Therefore, when the molding material is supplied to the cavity, the stretchable filter materials 10 and 11 can be stretched along the mold surfaces of the upper mold 6 and the lower mold 8, respectively.
【００１２】一方、供給装置３は、成形型２から離れて
設置された成形材料の貯蔵タンク１２と、この貯蔵タン
ク１２と前述の供給管９とを接続するホース１３と、こ
のホース１３に設けられた注入ポンプ１４から構成され
、注入ポンプ１４を駆動することにより、貯蔵タンク１
２の成形材料を吸い込み、ホース１３、供給管９を介し
てキャビティに圧入することができる。On the other hand, the supply device 3 includes a storage tank 12 for the molding material installed away from the mold 2, a hose 13 connecting the storage tank 12 and the aforementioned supply pipe 9, and a hose 13 provided on the hose 13. By driving the injection pump 14, the storage tank 1 is
The molding material No. 2 can be sucked in and press-fitted into the cavity via the hose 13 and the supply pipe 9.
【００１３】さらに、脱水装置４は、上型６の上部に固
定された密閉蓋１５と、下型８の下部に固定された吸引
箱１６と、これらの密閉蓋１５および吸引箱１６にそれ
ぞれ連通されて図示しない排水ポンプを設けたパイプ１
７，１８からなり、排水ポンプを駆動することにより、
上型６と密閉蓋１５および下型８と吸引箱１６とで形成
される空間をそれぞれ減圧することができる。この結果
、キャビティに圧入された成形材料の水分を伸張濾過材
１０、上型６に形成された水抜孔５を通して上型６と密
閉蓋１５で形成される空間に搾り取って集めると同時に
、伸張濾過材１１、下型８に形成された水抜孔７を通し
て吸引箱１６に搾り取って集め、それらの水分をそれぞ
れパイプ１７，１８を介して外部に排水することから、
成形材料を脱水することができる。Furthermore, the dewatering device 4 has a sealing lid 15 fixed to the upper part of the upper mold 6, a suction box 16 fixed to the lower part of the lower mold 8, and communication with these sealing lid 15 and suction box 16, respectively. Pipe 1 equipped with a drainage pump (not shown)
7 and 18, and by driving the drainage pump,
The spaces formed by the upper mold 6 and the sealing lid 15 and the spaces formed by the lower mold 8 and the suction box 16 can be respectively depressurized. As a result, the moisture in the molding material press-fitted into the cavity is squeezed out and collected through the stretch filter material 10 and the drain hole 5 formed in the upper mold 6 into the space formed by the upper mold 6 and the sealing lid 15, and at the same time Since the water is squeezed and collected in the suction box 16 through the filter material 11 and the water drain hole 7 formed in the lower die 8, and the water is drained to the outside through the pipes 17 and 18, respectively.
The molding material can be dehydrated.
【００１４】次に、本発明の製造方法についてセメント
１００重量部、ビニロンなどの有機繊維１０重量部、水
５４０重量部からなる成形材料を用いてセメント瓦を成
形する例について説明すると、下型８に対して上型６を
下降させて型閉めした後（図２）、注入ポンプ１４を駆
動して貯蔵タンク１２の成形材料をホース１３、供給管
９を介して２．５ｋｇ／ｃｍ２ の圧力でキャビティに
圧入する。この圧入された成形材料は、伸張濾過材１０
，１１を伸張させてそれぞれ上型６の型面および下型８
の型面に沿わせつつキャビティに充填される。Next, an example of the manufacturing method of the present invention in which a cement tile is molded using a molding material consisting of 100 parts by weight of cement, 10 parts by weight of organic fibers such as vinylon, and 540 parts by weight of water will be described. After lowering the upper mold 6 to close the mold (FIG. 2), the injection pump 14 is driven to feed the molding material in the storage tank 12 through the hose 13 and the supply pipe 9 at a pressure of 2.5 kg/cm2. Press into the cavity. This press-fitted molding material is applied to the stretch filter material 10
, 11 are extended to form the mold surface of the upper mold 6 and the lower mold 8, respectively.
The cavity is filled while following the mold surface.
【００１５】この結果、成形材料の充填圧力によって成
形材料に含まれている水分の大部分が伸張濾過材１１、
下型８に形成された水抜孔７を介して吸引箱１６に滴下
するとともに、伸張濾過材１０、上型６に形成された水
抜孔５を介して上型６と密閉蓋１５で形成される空間に
浸出する（図３）。次いで、図示しない排水ポンプを駆
動して上型６と密閉蓋１５で形成される空間および吸引
箱１６と下型８で形成される空間を−５００ｍｍＨｇま
で減圧すると、キャビティに充填された成形材料に含ま
れた余分の水分を伸張濾過材１０、上型６に形成された
水抜孔５を介して、さらに、伸張濾過材１１、下型８に
形成された水抜孔７を介してそれぞれ吸引し、搾り取る
。このようにして成形材料から脱水された水分は、パイ
プ１７，１８を経て排水される。As a result, the filling pressure of the molding material causes most of the moisture contained in the molding material to be transferred to the elongated filter material 11,
The water drips into the suction box 16 through the drain hole 7 formed in the lower mold 8, and is formed by the upper mold 6 and the airtight lid 15 through the stretch filter material 10 and the drain hole 5 formed in the upper mold 6. seeps into the space (Figure 3). Next, a drainage pump (not shown) is driven to reduce the pressure in the space formed by the upper die 6 and the sealing lid 15 and the space formed by the suction box 16 and the lower die 8 to -500 mmHg, and the molding material filled in the cavity is The excess moisture contained is suctioned through the stretchable filter material 10 and the drain holes 5 formed in the upper die 6, and further through the drain holes 7 formed in the stretch filter material 11 and the lower die 8, respectively. Squeeze it out. The moisture thus removed from the molding material is drained through pipes 17 and 18.
【００１６】成形材料の真空脱水が終了すれば、成形材
料は水硬反応に必要な程度の水分を含有する賦形物とな
る。そして、排水ポンプの作動を停止した後、上型６を
上昇させ（図４）、下型８から適宜賦形物を取り出し、
養生硬化させる。[0016] When the vacuum dehydration of the molding material is completed, the molding material becomes an excipient containing moisture in an amount necessary for hydraulic reaction. Then, after stopping the operation of the drainage pump, the upper mold 6 is raised (Fig. 4), and the excipients are taken out from the lower mold 8 as appropriate.
Curing and hardening.
【００１７】[0017]
【発明の効果】以上のように本発明によれば、下型と上
型で形成されるキャビティに成形材料を圧入し、その圧
入された成形材料の上下方向から伸張濾過材、水抜孔を
介してそれぞれ脱水するように構成したことにより、上
型や下型に凹凸などの複雑な形状が付与されている場合
であっても、成形材料から確実に脱水することができ、
成形物の歩留りを向上させることができる。As described above, according to the present invention, a molding material is press-fitted into a cavity formed by a lower mold and an upper mold, and the molding material is press-fitted from above and below through the stretch filter material and the water drain hole. By configuring the molding material to be dehydrated separately, even if the upper mold and lower mold have complex shapes such as unevenness, the molding material can be reliably dehydrated.
The yield of molded products can be improved.
【図１】水硬性無機質成形物の成形装置を示す概略図で
ある。FIG. 1 is a schematic diagram showing a molding apparatus for a hydraulic inorganic molded product.
【図２】成形装置による製造工程を示す説明図である。FIG. 2 is an explanatory diagram showing a manufacturing process using a molding device.
【図３】成形装置による製造工程を示す説明図である。FIG. 3 is an explanatory diagram showing a manufacturing process using a molding device.
【図４】成形装置による製造工程を示す説明図である。FIG. 4 is an explanatory diagram showing a manufacturing process using a molding device.
１ 成形装置 ５，７ 水抜孔 ６ 上型 ８ 下型 １０，１１ 伸張濾過材 １４ 注入ポンプ １５ 密閉蓋 １６ 吸引箱 1 Molding equipment 5,7 Water drain hole 6 Upper mold 8 Lower mold 10, 11 Stretch filter material 14 Infusion pump 15 Sealing lid 16 Suction box
Claims (1)
の水抜孔を形成した下型とを型閉めし、下型に固定され
た伸張濾過材と上型に固定された伸張濾過材との間に水
硬性無機質成形材料を圧入した後、上型および下型の外
側からそれぞれ吸引することにより成形材料を脱水して
賦形するように構成したことを特徴とする水硬性無機質
成形物の製造方法。Claim 1: An upper mold in which a large number of water drainage holes are formed and a lower mold in which a large number of water drainage holes are formed are closed, and an elongated filtration material fixed to the lower mold and an elongated filtration material fixed to the upper mold are formed. A hydraulic inorganic molded article, characterized in that the hydraulic inorganic molding material is press-fitted between the molding material and the molding material, and then the molding material is dehydrated and shaped by suction from the outside of the upper mold and the lower mold, respectively. manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9708591A JPH04327906A (en) | 1991-04-26 | 1991-04-26 | Manufacture of hydraulic inorganic molded material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9708591A JPH04327906A (en) | 1991-04-26 | 1991-04-26 | Manufacture of hydraulic inorganic molded material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04327906A true JPH04327906A (en) | 1992-11-17 |
Family
ID=14182807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9708591A Pending JPH04327906A (en) | 1991-04-26 | 1991-04-26 | Manufacture of hydraulic inorganic molded material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04327906A (en) |
-
1991
- 1991-04-26 JP JP9708591A patent/JPH04327906A/en active Pending
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