JPH072171Y2 - Mold for molding hydraulic inorganic moldings - Google Patents
Mold for molding hydraulic inorganic moldingsInfo
- Publication number
- JPH072171Y2 JPH072171Y2 JP3997088U JP3997088U JPH072171Y2 JP H072171 Y2 JPH072171 Y2 JP H072171Y2 JP 3997088 U JP3997088 U JP 3997088U JP 3997088 U JP3997088 U JP 3997088U JP H072171 Y2 JPH072171 Y2 JP H072171Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding
- filter cloth
- cavity
- mold cavity
- 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 - Lifetime
Links
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、水硬性無機質成形物の成形用型に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a mold for molding a hydraulic inorganic molded article.
（従来の技術） 従来、セメント、石膏、珪酸カルシウム等の水硬性無機
物を主材とする成形材料を用いて、成形物を成形するに
は、通常、第３図に示すように、一方の型である上型
１′と、型面に多数の水抜き孔が設けられた他方の型で
ある下型２′とを有し、下型２′の上に、プレス成形時
成形材料であるセメント等の微粒子が水抜き孔３′を通
り抜けないように濾布４′を介在させた装置が用いられ
ている。(Prior Art) Conventionally, in order to mold a molded article using a molding material mainly composed of a hydraulic inorganic material such as cement, gypsum, calcium silicate, etc., as shown in FIG. An upper mold 1 ', and a lower mold 2'which is the other mold having a large number of water drain holes formed on the mold surface, and cement, which is a molding material for press molding, is placed on the lower mold 2'. There is used a device in which a filter cloth 4'is interposed so that fine particles such as the above do not pass through the water drain hole 3 '.
この濾布４′は、予め下型２′の上に配置しておく場合
と、成形物が模様付きのときには、濾布４′の材質を伸
長性に富む材料で製し、これを上型１′と下型２′との
間に吊架して該濾布４′と上型１′との間に成形材料を
圧入し、該濾布４′を下型２′の凹凸状の型面に沿わせ
るようにする場合とがある。The filter cloth 4'is made of a material having high extensibility and is used as the upper mold when the filter cloth 4'is previously placed on the lower mold 2'and when the molded product has a pattern. 1'and a lower mold 2 ', and the molding material is press-fitted between the filter cloth 4'and the upper mold 1', and the filter cloth 4'is formed into an uneven mold of the lower mold 2 '. In some cases, it is made to follow the surface.
（考案が解決しようとする課題） しかしながら、その何れの場合でも型窩６′と型合わせ
面７′との境界部８′は、該他方の型２′上の濾布４′
の損傷防止の為に、第４図に示すように通常R1〜5mmの
曲面となるような面取り処理がなされている。(Problems to be solved by the invention) However, in any case, the boundary portion 8'between the mold cavity 6'and the mold matching surface 7'has a filter cloth 4'on the other mold 2 '.
In order to prevent damage, the chamfering process is usually performed to form a curved surface of R1 to 5 mm as shown in FIG.
所が、このような面取り処理を施した成形型では、成形
物の方にもこれに対応する部分に第５図に示すようにば
りＡが発生し、成形材料の硬化後にこのばりＡをヤスリ
等を用いて手作業で取り除く必要があり、成形費が嵩む
という問題があった。However, in the molding die subjected to such a chamfering treatment, burrs A are also generated in the parts corresponding to the chamfered parts as shown in FIG. 5, and the burrs A are sanded after the molding material is hardened. It is necessary to remove it manually by using such as a tool, and there is a problem that molding cost increases.
（課題を解決する為の手段） 本考案は、叙上の如き従来技術の課題を解決する為にな
されたものであって、その要旨は一方の型と、型面に多
数の水抜き孔が設けられた他方の型とを有し、プレス成
形時、他方の型面上に濾布が位置するようにした水硬性
無機質成形物の成形用型に於いて、型窩と型合わせ面と
の境界部に面取り加工が無く、且つ型窩に隣接する型合
わせ面が、該型窩の方向にほぼ平坦な傾斜面となされて
いることを特徴とする水硬性無機質成形物の成形用型に
存する。(Means for Solving the Problem) The present invention has been made to solve the above-mentioned problems of the prior art, and the gist thereof is one mold and a large number of drain holes on the mold surface. In a mold for molding a hydraulic inorganic molded product, which has the other mold provided, and has a filter cloth located on the other mold surface during press molding, a mold cavity and a mold matching surface A mold for molding a hydraulic inorganic molded article, characterized in that there is no chamfering process at the boundary, and the mating surface adjacent to the mold cavity is an inclined surface that is substantially flat in the direction of the mold cavity. .
（作用） 本考案は、型窩と型合わせ面との境界部に面取り加工が
無いので、賦型後の成形物には後加工の必要なばりが発
生しない。又、型窩に隣接する型合わせ面が、該型窩の
方向にほぼ平坦な傾斜面となされているので、型窩に隣
接する型合わせ面と他方の型の型窩内での型面とで形成
する前記境界部に於ける角度は、直角よりも大きい鈍角
となる。(Operation) In the present invention, since the boundary between the mold cavity and the mold matching surface is not chamfered, the molded product after molding does not have the burrs that require post-processing. Further, since the mold matching surface adjacent to the mold cavity is formed as a substantially flat inclined surface in the direction of the mold cavity, the mold matching surface adjacent to the mold cavity and the mold surface in the mold cavity of the other mold are The angle at the boundary formed by is an obtuse angle larger than a right angle.
（実施例） 以下、本考案の実施例を図面にもとずいて詳細に説明す
る。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
第１図に於いて、１は一方の型である上型、２は他方の
型である下型であって、その型面には多数の水切り孔３
が設けられている。４は下型の上に予め配設された濾布
であり、成形材料11を該濾布４上に置いて、図示しない
プレス機構により、上型１を固定された下型２に対して
下降し、成形材料11をプレスし且つ脱水可能になされて
いる。５は濾布４の端を下型に固定する為の押さえ具で
あり下型２にネジ止めされている。６は上型１と下型２
とで形成される型窩であって、該型窩６に隣接する型合
わせ面７、７は、該型窩６の方向にほぼ平坦な傾斜面と
なされており、他方の型２の型窩６に隣接する型合わせ
面７と型窩６内での型面８とで形成する境界部９に於け
る角度θは135度となされており、従って濾布４も、押
さえ具５から水平面の型合わせ面10を経て型窩６に隣接
する型合わせ面７、７、境界部９、型面８へと各々の面
上に配設される。In FIG. 1, 1 is an upper die which is one die, 2 is a lower die which is the other die, and a large number of drainage holes 3 are formed on the die surface.
Is provided. Reference numeral 4 denotes a filter cloth previously arranged on the lower mold. The molding material 11 is placed on the filter cloth 4, and the upper mold 1 is lowered to the fixed lower mold 2 by a pressing mechanism (not shown). The molding material 11 can be pressed and dehydrated. Reference numeral 5 denotes a retainer for fixing the end of the filter cloth 4 to the lower mold, which is screwed to the lower mold 2. 6 is an upper mold 1 and a lower mold 2
And the mold-matching surfaces 7 and 7 adjacent to the mold cavity 6 are inclined surfaces that are substantially flat in the direction of the mold cavity 6, and the mold cavity of the other mold 2 is formed. The angle θ at the boundary 9 formed by the mold-matching surface 7 adjacent to 6 and the mold surface 8 in the mold cavity 6 is 135 degrees, so that the filter cloth 4 is also separated from the pressing tool 5 in the horizontal plane. The mold matching surfaces 7, 7 adjacent to the mold cavity 6, the boundary portion 9, and the mold surface 8 are disposed on the respective surfaces through the mold matching surface 10.
上記の成形型に成形材料11を充填して脱水プレス成形
し、賦型された成形物Ｍには、第２図に示すようにばり
は無く、しかも長期間にわたって成形型を繰り返し使用
しても、濾布４の寿命は、従来の通常R1〜5mmの曲面と
なるような面取り処理がなされた成形型と同等であっ
た。The above molding die is filled with the molding material 11 and subjected to dewatering press molding, and the molded product M formed has no burrs as shown in FIG. 2, and even if the molding die is repeatedly used for a long period of time. The service life of the filter cloth 4 was the same as that of a conventional molding die that was chamfered so that a curved surface having a normal R1 to 5 mm was obtained.
上記の実施例では、他方の型の型窩６に隣接する型合わ
せ面７と型窩６内での型面８とで形成する境界部９に於
ける角度θは135度、即ち水平面に対して45度の傾斜角
度としたが、該角度θは特にこれのみに限定されるもの
ではない。只出来るだけ135度付近の角度とした方が、
境界部９と、水平面の型合わせ面10と型合わせ面７との
境界部の角度θ′とがほぼ等しくなり、濾布４の寿命維
持の為に好ましい。In the above-described embodiment, the angle θ at the boundary portion 9 formed by the die-matching surface 7 adjacent to the die cavity 6 of the other die and the die surface 8 in the die cavity 6 is 135 degrees, that is, with respect to the horizontal plane. However, the angle θ is not particularly limited to this. It is better to make the angle as close to 135 degrees as possible,
The angle 9'of the boundary portion 9 and the boundary portion between the horizontal mold matching surface 10 and the mold matching surface 7 become substantially equal, which is preferable for maintaining the life of the filter cloth 4.
上記の実施例では、濾布が、予め下型の上に配置されて
いる場合の例を示したが、成形物が模様付きのときに採
用するところの、伸長性に富む材料で製した濾布を、上
型と下型との間に吊架して該濾布と上型との間に成形材
料を圧入する場合にも本考案成形用型を用いることが出
来る。In the above examples, the case where the filter cloth was previously placed on the lower mold was shown. However, the filter cloth made of a material having high extensibility, which is adopted when the molded product has a pattern, is used. The molding die of the present invention can also be used when the cloth is suspended between the upper mold and the lower mold and the molding material is press-fitted between the filter cloth and the upper mold.
（効果） 本考案は、型と型合わせ面との境界部に面取り加工が無
いので、賦型後の成形物には後加工の必要なばりが発生
しない。従って、ばりをヤスリ等を用いて手作業で取り
除く必要が無く、成形費が安価である。又、型窩に隣接
する型合わせ面が、該型窩の方向にほぼ平坦な傾斜面と
なされているので、他方の型の型窩に隣接する型合わせ
面と型窩内での型面とで形成する前記境界部に於ける角
度は、直径よりも大きい鈍角となる。従って、型窩と型
合わせ面との境界部における濾布に働く押圧力は軽減さ
れ、その損傷防止を図ることが出来る。(Effect) In the present invention, since there is no chamfering process at the boundary between the mold and the mating surface, the burrs that require post-processing do not occur in the molded product after shaping. Therefore, it is not necessary to manually remove the flash with a file, and the molding cost is low. Further, since the mold-matching surface adjacent to the mold cavity is formed as a substantially flat inclined surface in the direction of the mold cavity, the mold-matching surface adjacent to the mold cavity of the other mold and the mold surface in the mold cavity are The angle at the boundary portion formed by is an obtuse angle larger than the diameter. Therefore, the pressing force acting on the filter cloth at the boundary between the mold cavity and the mold matching surface is reduced, and the damage can be prevented.
第１図は本考案成形用型の一実施例を示す要部拡大断面
図、第２図は同上の成形用型を用いて得られた成形物の
要部のみを示す断面図、第３図は従来の成形用型の一例
を示す一部切欠断面図、第４図は同上の要部拡大断面
図、第５図は同上従来の成形用型を用いて得られた成形
物の要部のみを示す断面図である。 １は一方の型、２は他方の型、３は水切り孔、４は濾
布、６は型窩、７、７′は型窩に隣接する型合わせ面、
８は他方の型の型窩６内での型面、９は境界部、10は水
平面の型合わせ面、11は成形材料。FIG. 1 is an enlarged sectional view of an essential part showing an embodiment of the molding die of the present invention, FIG. 2 is a sectional view showing only an essential part of a molded product obtained by using the molding die of the same, and FIG. Is a partially cutaway sectional view showing an example of a conventional molding die, FIG. 4 is an enlarged sectional view of an essential part of the same, and FIG. 5 is an essential part of a molded article obtained by using the conventional molding die of the same as above. FIG. 1 is one mold, 2 is the other mold, 3 is a drainage hole, 4 is a filter cloth, 6 is a mold cavity, 7 and 7'are mold matching surfaces adjacent to the mold cavity,
8 is a mold surface in the mold cavity 6 of the other mold, 9 is a boundary portion, 10 is a horizontal mating surface, and 11 is a molding material.
Claims (1)
られた他方の型とを有し、プレス成形時、他方の型面上
に濾布が位置するようにした水硬性無機質成形物の成形
用型に於いて、型窩と型合わせ面との境界部に面取り加
工が無く、且つ型窩に隣接する型合わせ面が、該型窩の
方向にほぼ平坦な傾斜面となされていることを特徴とす
る水硬性無機質成形物の成形用型。1. A hydraulic property comprising one mold and the other mold having a large number of water drain holes formed on the mold surface, wherein the filter cloth is positioned on the other mold surface during press molding. In a mold for molding an inorganic molded article, there is no chamfering process at the boundary between the mold cavity and the mold matching surface, and the mold matching surface adjacent to the mold cavity has an inclined surface that is substantially flat in the direction of the mold cavity. A mold for molding a hydraulic inorganic molded article, which is characterized by being made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3997088U JPH072171Y2 (en) | 1988-03-25 | 1988-03-25 | Mold for molding hydraulic inorganic moldings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3997088U JPH072171Y2 (en) | 1988-03-25 | 1988-03-25 | Mold for molding hydraulic inorganic moldings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01148308U JPH01148308U (en) | 1989-10-13 |
| JPH072171Y2 true JPH072171Y2 (en) | 1995-01-25 |
Family
ID=31266451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3997088U Expired - Lifetime JPH072171Y2 (en) | 1988-03-25 | 1988-03-25 | Mold for molding hydraulic inorganic moldings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072171Y2 (en) |
-
1988
- 1988-03-25 JP JP3997088U patent/JPH072171Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01148308U (en) | 1989-10-13 |
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