JP3201212B2 - Mold for forming inorganic plate - Google Patents
Mold for forming inorganic plateInfo
- Publication number
- JP3201212B2 JP3201212B2 JP07530895A JP7530895A JP3201212B2 JP 3201212 B2 JP3201212 B2 JP 3201212B2 JP 07530895 A JP07530895 A JP 07530895A JP 7530895 A JP7530895 A JP 7530895A JP 3201212 B2 JP3201212 B2 JP 3201212B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- inorganic plate
- lower mold
- forming
- molding
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims description 19
- 238000000465 moulding Methods 0.000 claims description 17
- 239000013013 elastic material Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 239000012778 molding material Substances 0.000 description 14
- 239000000377 silicon dioxide Substances 0.000 description 7
- 238000003825 pressing Methods 0.000 description 5
- 239000011398 Portland cement Substances 0.000 description 3
- 239000010425 asbestos Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910052895 riebeckite Inorganic materials 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 239000010456 wollastonite Substances 0.000 description 1
- 229910052882 wollastonite Inorganic materials 0.000 description 1
Landscapes
- Moulds, Cores, Or Mandrels (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は波形形状の瓦等のセメン
トプレス成形品を製造するのに好適な成形用金型に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding die suitable for producing a cement press molded product such as a corrugated roof tile.
【０００２】[0002]
【従来の技術】従来のこの種のものは、山部を形成する
凸状の下型と、これと組み合わせて使用される凹状の上
型とを備える無機質板の成形用金型により波形形状の無
機質板を製造していた。2. Description of the Related Art This type of conventional device has a corrugated shape formed by an inorganic plate molding die having a convex lower mold forming a mountain and a concave upper mold used in combination with the lower mold. Manufacture of inorganic plates.
【０００３】[0003]
【発明が解決しようとする課題】しかし上記従来例で
は、曲率半径の小さな波形形状の無機質板を成形する成
形用材料が引っ張られて伸びることによりクラックが発
生していたため曲率半径の大きな波形形状の無機質板し
か製造できなかった。本発明はこの点に鑑みてなされた
ものであり、曲率半径の比較的小さな波形形状の無機質
板を成形することができる無機質板の成形用金型を提供
することを目的とするものである。However, in the above-mentioned conventional example, cracks are generated by stretching the molding material for forming the corrugated inorganic plate having a small radius of curvature. Only inorganic plates could be manufactured. The present invention has been made in view of this point, and an object of the present invention is to provide a mold for forming an inorganic plate capable of forming a corrugated inorganic plate having a relatively small radius of curvature.
【０００４】[0004]
【課題を解決するための手段】本発明の請求項１記載の
無機質板の成形用金型は、山部を形成する凸状の下型
と、これと組み合わせて使用される凹状の上型とを備え
る無機質板の成形用金型において、下型の山部の頂部付
近を下型と上型とを組み合わせて加圧するときに体積を
減少させる補助材で形成したことを特徴とするものであ
る。According to a first aspect of the present invention, there is provided a mold for forming an inorganic plate, comprising: a convex lower mold forming a mountain portion; and a concave upper mold used in combination with the lower mold. In the metal mold for forming an inorganic plate, the vicinity of the top of the crest of the lower mold is formed with an auxiliary material that reduces the volume when the lower mold and the upper mold are combined and pressed. .
【０００５】本発明の請求項２記載の無機質板の成形用
金型は、請求項１記載の無機質板の成形用金型におい
て、下型の山部の頂部両側に角部を形成し、上型にこれ
と組み合わされる角部を形成したことを特徴とするもの
である。According to a second aspect of the present invention, there is provided a mold for forming an inorganic plate according to the first aspect, wherein corners are formed on both sides of the top of the crest of the lower mold. It is characterized in that a corner portion to be combined with the mold is formed on the mold.
【０００６】本発明の請求項３記載の無機質板の成形用
金型は、請求項１又は請求項２記載の無機質板の成形用
金型において、補助材を弾性体で成したことを特徴とす
るものである。According to a third aspect of the present invention, there is provided the mold for forming an inorganic plate according to the first or second aspect, wherein the auxiliary material is made of an elastic material. Is what you do.
【０００７】[0007]
【作用】本発明の請求項１記載の無機質板の成形用金型
は、成形時に下型の表面に沿って成形用材料を載せる。
下型の山部の頂部付近においては補助材の表面に沿って
成形用材料を載せる。その後上型と下型を組み合わせて
加圧する。加圧により補助材は体積を減少するので下型
の表面積は加圧前に比べて減少する。その結果加圧状態
においては下型の山部の頂部付近の成形用材料は余裕の
材料が生ずることとなる。この余裕の材料により成形時
に引っ張られて伸びることにより最もクラックが生じや
すい山部の頂部付近のクラックの発生を防止することが
できる。In the mold for molding an inorganic plate according to the first aspect of the present invention, a molding material is placed along the surface of the lower mold during molding.
In the vicinity of the top of the crest of the lower mold, a molding material is placed along the surface of the auxiliary material. Thereafter, the upper mold and the lower mold are combined and pressed. Since the volume of the auxiliary material is reduced by pressing, the surface area of the lower mold is reduced as compared with before the pressing. As a result, in the pressurized state, a sufficient amount of molding material near the top of the crest of the lower mold is generated. It is possible to prevent the generation of cracks near the tops of the hills where cracks are most likely to occur by being stretched by being stretched at the time of molding with this extra material.
【０００８】本発明の請求項２記載の無機質板の成形用
金型は、下型の山部の頂部両側に角部を形成しており、
これに対応する部分の上型に角部を形成しており、加圧
状態においては下型の山部の頂部付近の成形用材料は余
裕の材料が生ずることとなるので最もクラックが生じや
すい角部のクラックの発生を防止することができる。According to a second aspect of the present invention, there is provided a mold for forming an inorganic plate, wherein corners are formed on both sides of a top of a mountain of a lower mold.
Corresponding to this, a corner is formed in the upper mold, and in the pressurized state, the molding material near the top of the crest of the lower mold has a marginal material, so the corner where cracks are most likely to occur. The occurrence of cracks in the part can be prevented.
【０００９】本発明の請求項３記載の無機質板の成形用
金型は、加圧により補助材は体積を減少し、下型の表面
積は加圧前に比べて減少するが、前記補助材が弾性体で
あるから、成形終了後解圧すると補助材の体積は増大し
加圧前の体積に戻る。これにより下型の表面積も増大し
加圧前の状態に戻る。従って、下型に補助材を一旦設置
すれば、容易に連続成形することができる。According to the third aspect of the present invention, in the metal mold for forming an inorganic plate, the auxiliary material is reduced in volume by pressurization, and the surface area of the lower mold is reduced as compared with before pressurization. Since it is an elastic body, when the pressure is released after the completion of molding, the volume of the auxiliary material increases and returns to the volume before pressurization. As a result, the surface area of the lower mold also increases and returns to the state before pressurization. Therefore, once the auxiliary material is installed in the lower mold, continuous molding can be easily performed.
【００１０】[0010]
【実施例】図１は本発明の一の実施例である無機質板の
成形用金型の断面図である。図１に示すようにこの無機
質板の成形用金型は上型１と下型２とを備え上型１と下
型２の間の成形用材料３を、上型１と下型２とを組み合
わせて加圧することにより無機質板を成形するものであ
る。下型２は凸状でありその山部の頂部付近は補助材４
で形成されている。補助材４は弾性体でありその材質は
プラスチック、ゴム等が使用できるが、発泡ウレタン等
が適切である。上型１は凹状であり下型２とかみ合う形
状である。FIG. 1 is a sectional view of a mold for forming an inorganic plate according to one embodiment of the present invention. As shown in FIG. 1, the mold for molding an inorganic plate includes an upper mold 1 and a lower mold 2, and a molding material 3 between the upper mold 1 and the lower mold 2, and an upper mold 1 and a lower mold 2. By pressing in combination, an inorganic plate is formed. The lower mold 2 is convex, and the auxiliary material 4 is located near the top of the mountain.
It is formed with. The auxiliary member 4 is an elastic body, and the material thereof may be plastic, rubber, or the like, but urethane foam or the like is appropriate. The upper mold 1 is concave and has a shape that meshes with the lower mold 2.
【００１１】以下に無機質板の一つである波形形状の瓦
の成形について説明する。先ず成形用材料３を以下の配
合で製造した。オートクレーブ養生配合としてはポルト
ランドセメント４０乃至６０重量％、珪石粉２５乃至４
５重量％、充填材３乃至１０重量％、粘土０．５乃至２
重量％、アスベスト０乃至１０重量％、パルプ３乃至５
重量％であり、必要に応じて未叩解パルプ０．５乃至２
重量％、有機繊維０．５乃至１．５重量％を添加する。
尚充填材としてはワラストナイト、マイカ等を使用し、
粘土としてはセピオライト、カオリナイト、アパタルジ
ャイト等を使用し、アスベストとしては４乃至６クラス
のものを使用し、パルプとしては叩解度５０度ＳＲ乃至
８５度ＳＲのものを使用した。有機繊維としてはビニロ
ン、ポリプロピレン等を使用する。湿熱養生配合として
はポルトランドセメント６５乃至８５重量％、シリカ５
乃至１０重量％（シリカとしては６乃至８号ケイ砂）、
それ以外の充填材、粘土等はすべてオートクレーブ養生
配合と同一の場合、及びポルトランドセメント７５乃至
９０重量％、シリカ１０乃至１３重量％（シリカとして
は６乃至８号ケイ砂）、アスベスト５乃至１２重量％、
パルプ０．５乃至２重量％の場合がある。Hereinafter, the formation of a corrugated roof tile, which is one of the inorganic plates, will be described. First, molding material 3 was produced with the following composition. As an autoclave curing composition, Portland cement 40 to 60% by weight, silica powder 25 to 4
5% by weight, filler 3-10% by weight, clay 0.5-2
Wt%, asbestos 0-10 wt%, pulp 3-5
Weight percent, unbeaten pulp 0.5 to 2 if necessary
% By weight, and 0.5 to 1.5% by weight of organic fibers.
In addition, wollastonite, mica, etc. are used as the filler,
Sepiolite, kaolinite, apatalite, etc. were used as clay, asbestos having a class of 4 to 6 was used, and pulp having a beating degree of 50 ° SR to 85 ° SR was used. Vinylon, polypropylene or the like is used as the organic fiber. Portland cement 65-85% by weight, silica 5
To 10% by weight (silica 6 to 8 silica sand)
All other fillers, clays, etc. are the same as in the autoclave curing composition, and 75 to 90% by weight of Portland cement, 10 to 13% by weight of silica (silica No. 6 to 8 silica sand), 5 to 12% of asbestos %,
Pulp may be 0.5 to 2% by weight.
【００１２】次にこの無機質板の成形用金型の使用方法
について説明する。下型２の表面に沿って成形用材料３
を載せる。下型２の山部の頂部付近は補助材４で形成さ
れているので、頂部付近は補助材４の表面に沿って成形
用材料３を載せる。次に下型２と上型１を組み合わせて
加圧する。下型２の山部の頂部付近の補助材４は弾性体
であるから圧力が加わることにより弾性変形してその体
積を減少するので下型２の表面積は、圧力が加わる前に
比べて減少する。かかる状態においては下型２の山部の
頂部付近の成形用材料３は余裕の材料が生ずることとな
る。瓦の成形時には成形用材料３は上型１及び下型２の
外側に向かって引っ張られ伸びるため下型２山部の頂部
付近に相当する部分に最もクラックが生じやすいのであ
るが、前記余裕の材料によりクラックの発生を防止する
ことができた。また成形終了後解圧すると補助材４の体
積は増大し加圧前の体積に戻る。これにより下型２の表
面積も増大し加圧前の状態に戻る。従って、下型２に弾
性材４を一旦設置すれば、容易に連続成形することがで
きる。このように曲率半径の比較的小さな波形形状の瓦
を成形することができた。尚複数の曲率半径の比較的小
さな波形形状を有する瓦を成形することもできる。Next, a method of using the mold for forming an inorganic plate will be described. Forming material 3 along the surface of lower mold 2
Put. Since the vicinity of the top of the crest of the lower mold 2 is formed of the auxiliary material 4, the molding material 3 is placed along the surface of the auxiliary material 4 near the top. Next, the lower mold 2 and the upper mold 1 are combined and pressed. Since the auxiliary member 4 near the top of the crest of the lower mold 2 is an elastic body, it is elastically deformed by applying pressure and its volume is reduced, so that the surface area of the lower mold 2 is reduced as compared to before the pressure is applied. . In such a state, the molding material 3 near the top of the crest of the lower mold 2 has a surplus material. When the tile is formed, the molding material 3 is pulled and extended toward the outside of the upper mold 1 and the lower mold 2, so that cracks are most likely to occur at a portion corresponding to the vicinity of the top of the lower mold 2 crests. Cracks could be prevented by the material. When the pressure is released after the completion of the molding, the volume of the auxiliary member 4 increases and returns to the volume before the pressing. As a result, the surface area of the lower mold 2 also increases and returns to the state before pressurization. Therefore, once the elastic member 4 is installed in the lower mold 2, continuous molding can be easily performed. Thus, a wavy roof tile having a relatively small radius of curvature could be formed. Note that a roof tile having a plurality of relatively small waveform radii with a radius of curvature can also be formed.
【００１３】図２は本発明の別の実施例である無機質板
の成形用金型の断面図である。この無機質板の成形用金
型は上型１は図１の無機質板の成形用金型と共通であ
り、下型２が異なる。この場合下型２は凸状でありその
中央付近の山部にスプリングにより弾発付勢される支持
片５を突出させている。FIG. 2 is a sectional view of a mold for forming an inorganic plate according to another embodiment of the present invention. In this mold for forming an inorganic plate, an upper mold 1 is common to the mold for forming an inorganic plate in FIG. 1 and a lower mold 2 is different. In this case, the lower die 2 has a convex shape, and a support piece 5 which is resiliently urged by a spring is projected from a peak near the center thereof.
【００１４】この無機質板の成形用金型の使用方法は図
１の無機質板の成形用金型と類似しているが、下型２の
表面に沿って成形用材料３を載せる場合下型２の山部の
頂部付近は支持片５の表面に沿って成形用材料３を載せ
る。次に下型２と上型１を組み合わせて加圧する。下型
２の山部の頂部付近の支持片５は圧力が加わることによ
りスプリングの変形が縮み支持片５がない状態となる。
即ち下型２の表面積が減少し、図１の場合と同様にクラ
ックの発生を防止することができる。また成形終了後解
圧すると支持片５は元の突出した状態に戻る。従って、
下型２に支持片５を一旦設置すれば、容易に連続成形す
ることができる。The method of using the mold for forming an inorganic plate is similar to that of the mold for forming an inorganic plate shown in FIG. 1, but when the molding material 3 is placed along the surface of the lower mold 2, the lower mold 2 is used. The molding material 3 is placed along the surface of the support piece 5 near the top of the peak. Next, the lower mold 2 and the upper mold 1 are combined and pressed. When the pressure is applied to the support piece 5 near the top of the crest of the lower mold 2, the deformation of the spring is reduced, and the support piece 5 does not exist.
That is, the surface area of the lower mold 2 is reduced, and the occurrence of cracks can be prevented as in the case of FIG. When the pressure is released after the completion of the molding, the support piece 5 returns to the original projected state. Therefore,
Once the support piece 5 is installed on the lower mold 2, continuous molding can be easily performed.
【００１５】図３は本発明の別の実施例である無機質板
の成形用金型の断面図である。この無機質板の成形用金
型は図１の無機質板の成形用金型と類似しているが、下
型２の山部の頂部付近が補助材４としての風船６を設置
している点が異なる。この場合成形時に風船６に空気を
入れて、下型２の表面に沿って成形用材料３を載せる場
合には下型２の山部の頂部付近は風船６の表面に沿って
成形用材料３を載せて、加圧時に風船６から空気を抜く
ことにより図１の場合と同様にクラックの発生を防止す
ることができる。FIG. 3 is a sectional view of a mold for forming an inorganic plate according to another embodiment of the present invention. The mold for forming an inorganic plate is similar to the mold for forming an inorganic plate in FIG. 1 except that a balloon 6 as an auxiliary member 4 is installed near the top of the mountain of the lower mold 2. different. In this case, when air is introduced into the balloon 6 at the time of molding and the molding material 3 is placed along the surface of the lower mold 2, the vicinity of the top of the crest of the lower mold 2 extends along the surface of the balloon 6. 1 and bleeding air from the balloon 6 at the time of pressurization, the occurrence of cracks can be prevented as in the case of FIG.
【００１６】[0016]
【発明の効果】本発明の請求項１記載の無機質板の成形
用金型は、成形時に最もクラックが生じやすい山部の頂
部付近のクラックの発生を防止することができる。これ
により曲率半径の比較的小さな波形形状の無機質板を成
形することができる。According to the mold for molding an inorganic plate according to the first aspect of the present invention, it is possible to prevent the generation of cracks near the tops of the hills where cracks are most likely to occur during molding. Thereby, a corrugated inorganic plate having a relatively small radius of curvature can be formed.
【００１７】本発明の請求項２記載の無機質板の成形用
金型は、シャープな形状を有する無機質板を成形するこ
とができる。The mold for forming an inorganic plate according to the second aspect of the present invention can form an inorganic plate having a sharp shape.
【００１８】本発明の請求項３記載の無機質板の成形用
金型は、請求項１又は請求項２記載の無機質板の成形用
金型の効果に加えて、下型に補助材を一旦設置すれば、
容易に連続成形することができる。According to the third aspect of the present invention, in addition to the effects of the first and second aspects of the present invention, an auxiliary material is temporarily installed in the lower mold. if,
It can be easily formed continuously.
【図１】本発明の一の実施例である無機質板の成形用金
型の断面図である。FIG. 1 is a cross-sectional view of a mold for forming an inorganic plate according to one embodiment of the present invention.
【図２】本発明の別の実施例である無機質板の成形用金
型の断面図である。FIG. 2 is a sectional view of a mold for forming an inorganic plate according to another embodiment of the present invention.
【図３】本発明のさらに別の実施例である無機質板の成
形用金型の断面図である。FIG. 3 is a cross-sectional view of a mold for forming an inorganic plate according to still another embodiment of the present invention.
１ 上型 ２ 下型 ３ 成形用材料 ４ 補助材 ７ 角部 Reference Signs List 1 upper die 2 lower die 3 molding material 4 auxiliary material 7 corner
Claims (3)
み合わせて使用される凹状の上型とを備える無機質板の
成形用金型において、下型の山部の頂部付近を下型と上
型とを組み合わせて加圧するときに体積を減少させる補
助材で形成したことを特徴とする無機質板の成形用金
型。1. A mold for forming an inorganic plate, comprising a convex lower mold forming a mountain and a concave upper mold used in combination with the lower mold. A mold for molding an inorganic plate, wherein the mold is formed of an auxiliary material that reduces the volume when a combination of a mold and an upper mold is pressed.
上型にこれと組み合わされる角部を形成したことを特徴
とする請求項１記載の無機質板の成形用金型。2. A corner is formed on both sides of the top of the crest of the lower mold.
2. The mold for molding an inorganic plate according to claim 1, wherein a corner portion combined with the upper mold is formed on the upper mold.
る請求項１又は請求項２記載の無機質板の成形用金型。3. The mold according to claim 1, wherein the auxiliary member is made of an elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07530895A JP3201212B2 (en) | 1995-03-31 | 1995-03-31 | Mold for forming inorganic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07530895A JP3201212B2 (en) | 1995-03-31 | 1995-03-31 | Mold for forming inorganic plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08267431A JPH08267431A (en) | 1996-10-15 |
| JP3201212B2 true JP3201212B2 (en) | 2001-08-20 |
Family
ID=13572505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07530895A Expired - Fee Related JP3201212B2 (en) | 1995-03-31 | 1995-03-31 | Mold for forming inorganic plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3201212B2 (en) |
-
1995
- 1995-03-31 JP JP07530895A patent/JP3201212B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08267431A (en) | 1996-10-15 |
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|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010522 |
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| LAPS | Cancellation because of no payment of annual fees |