JPH06182736A - Cement press mold - Google Patents
Cement press moldInfo
- Publication number
- JPH06182736A JPH06182736A JP33700092A JP33700092A JPH06182736A JP H06182736 A JPH06182736 A JP H06182736A JP 33700092 A JP33700092 A JP 33700092A JP 33700092 A JP33700092 A JP 33700092A JP H06182736 A JPH06182736 A JP H06182736A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- pin
- elastic body
- cement
- iron plate
- 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
Landscapes
- Moulds, Cores, Or Mandrels (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、釘打ち用孔等の固定部
材挿通孔が形成された、瓦等の屋根材や外壁材等のセメ
ント成形品を製造するのに好適なセメントプレス成形用
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 cement press molding suitable for producing cement molded products such as roofing materials such as roof tiles and outer wall materials in which fixing member insertion holes such as nailing holes are formed. It is about molds.
【０００２】[0002]
【従来の技術】従来、固定部材挿通用孔が形成されたセ
メント成形品を製造する場合、例えば、特公昭６１─２
９８４８号公報に記載の如く、成形品の孔部に対応する
突起を有する金型を用意し、成形後金型を開く前に突起
を成形面まで引っ込ませる方法が提案されている。しか
し、この方法の場合は、金型が複雑となり極めて高価に
なるのみならず、突起を出したり引っ込めたりする動作
が必要であるために、その動作を操作するための設備を
余分に要し、又、閉型時に突起が成形面に当たって成形
面を傷つけ易いという問題点があった。2. Description of the Related Art Conventionally, in the case of manufacturing a cement molded article having a fixing member insertion hole, for example, Japanese Patent Publication No. 61-2.
As described in Japanese Patent Publication No. 9848, there has been proposed a method in which a mold having a projection corresponding to a hole of a molded product is prepared and the projection is retracted to the molding surface before the mold is opened. However, in the case of this method, not only is the mold complicated and extremely expensive, but since an operation of ejecting or retracting the protrusion is required, extra equipment for operating the operation is required, In addition, there is a problem in that the protrusions are likely to hit the molding surface when the mold is closed, and the molding surface is easily damaged.
【０００３】しかして、上記の点に鑑み、例えば、図１
３に示す如く、上型ａと下型ｂからなるプレス成形用金
型の下型ｂに搾水兼搬送用吸引孔ｃが設けられ、その型
面に水切り鉄板ｄが取り付けられると共に、上型ａの型
面にピンｅが設けられ、水切り鉄板ｄに閉型時にピンｅ
に当接するように弾性体ｆが設けられた金型を用いて、
金型にセメント成形用材料を供給して脱水プレス成形を
行う方法が試みられている。In view of the above points, for example, FIG.
As shown in FIG. 3, the lower mold b for the press molding die, which is composed of the upper mold a and the lower mold b, is provided with the suction holes c for water squeezing and carrying, and the draining iron plate d is attached to the mold surface, and A pin e is provided on the die surface of a, and the pin e is placed on the draining iron plate d when the die is closed.
Using a mold provided with an elastic body f so as to abut
A method of supplying a cement molding material to a mold and performing dewatering press molding has been attempted.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな脱水プレス成形法においては、脱水プレス成形時に
おける面圧が３０〜７０ｋｇ／ｃｍ2 と高いために、弾
性体ｆがへたり平坦になってしまい、ピンｅの先端が弾
性体ｆにとどかず、得られるセメント成形品には、図１
４に示す如く、その両面に、ピンｅに対応する凹部ｅ′
と、弾性体ｆに対応する凹部ｆ′が形成されているだけ
であって貫通孔が形成されておらず、施工時に、この凹
部ｅ′，ｆ′が形成されている部分に釘等の固定部材を
無理に打ち込むと、その周辺部分が割れ易いという問題
点がある。However, in such a dehydration press molding method, since the surface pressure during the dehydration press molding is as high as 30 to 70 kg / cm 2 , the elastic body f becomes flat and flat. The tip of the pin e does not reach the elastic body f, and the obtained cement molded product has the structure shown in FIG.
As shown in FIG. 4, recesses e'corresponding to the pins e are provided on both sides thereof.
When only a concave portion f'corresponding to the elastic body f is formed and a through hole is not formed, a nail or the like is fixed to the portion where the concave portions e'and f'are formed during construction. If the member is forcibly driven, there is a problem that the peripheral portion is easily cracked.
【０００５】本発明は、上記の如き従来の問題点を解消
し、外観及び強度に優れ、且つ貫通する固定部材挿通孔
が確実に形成されたセメント成形品を簡単に製造するこ
とができるセメントプレス成形用金型を提供することを
目的としてなされたものである。The present invention solves the above-mentioned conventional problems, has a good appearance and strength, and can easily manufacture a cement molded product in which a fixing member insertion hole that penetrates is reliably formed. The purpose of the invention is to provide a molding die.
【０００６】[0006]
【課題を解決するための手段】本願の請求項１の発明
（以下、本発明１という）は、開閉自在とされた上型と
下型とを備え、上型の型面又は下型の型面のいずれか一
方にピンが設けられ、他方に閉型時に上記ピンに当接す
るように弾性体が設けられ、その弾性体の周囲が硬質部
材により上記ピンに当接する部分を残して被覆されてい
るセメントプレス成形用金型である。The invention according to claim 1 of the present application (hereinafter referred to as the present invention 1) comprises an upper mold and a lower mold that can be opened and closed, and the upper mold surface or the lower mold. A pin is provided on one of the surfaces, and an elastic body is provided on the other side so as to abut the pin when the die is closed, and the periphery of the elastic body is covered by a hard member except for a portion abutting the pin. This is a mold for cement press molding.
【０００７】本発明１において、金型としては、開閉自
在とされた上型と下型とを備えたプレス成形用金型が使
用される。この金型の内面には、閉型時にに成形すべき
セメント成形品の外面形状に対応する内面形状を有する
成形品形成部が設けられたプレス成形用金型が使用され
る。In the present invention 1, as the mold, a press-molding mold having an openable and closable upper mold and a lower mold is used. On the inner surface of the mold, there is used a press-molding die provided with a molded product forming portion having an inner surface shape corresponding to the outer surface shape of the cement molded product to be molded at the time of closing.
【０００８】上型の型面又は下型の型面のいずれか一方
に、ピンが型面から成形品形成部の方に突出するように
設けられている。又、ピンが設けられていない方の上型
の型面又は下型の型面に、閉型したときピンに当接する
ように弾性体が成形品形成部に突出するように設けられ
ている。そして、弾性体の周囲が硬質部材によりピンに
当接する部分を残して被覆されている。A pin is provided on either the mold surface of the upper mold or the mold surface of the lower mold so as to project from the mold surface toward the molded product forming portion. Further, an elastic body is provided on the mold surface of the upper mold or the mold surface of the lower mold on which the pin is not provided so as to project into the molded product forming portion so as to contact the pin when the mold is closed. Then, the periphery of the elastic body is covered by the hard member, leaving a portion in contact with the pin.
【０００９】本発明１において、ピンとしては、得られ
るセメント成形品に固定部材挿通孔を形成するためのも
のであって、例えば、金属等の変形しにくい材料からな
り、横断面外形が円形、四角形、多角形等の形状をな
し、先端がやや尖った短尺棒状体等が使用される。In the first aspect of the present invention, the pin is for forming a fixing member insertion hole in the obtained cement molded product, and is made of a material such as metal which is hard to be deformed and has a circular cross-sectional outer shape. A short rod-like body having a quadrangular shape, a polygonal shape, or the like and a slightly pointed tip is used.
【００１０】このピンは、セメント成形品に設けられる
固定部材挿通孔の位置が一定の場合には、上型の型面又
は下型の型面のいずれか一方の一定の部位に熔接、接着
等により固着されてもよいし、又、セメント成形品に設
ける固定部材挿通孔が種々異なる場合には、プレス成形
時に移動しない接合力にて、上型の型面又は下型の型面
のいずれか一方のある一定の部位に仮着され、別の部位
にも簡単に仮着し直すことができるようにされていても
よい。仮着の方法としては例えば螺合等による方法が挙
げられる。When the position of the fixing member insertion hole provided in the cement molded product is fixed, this pin is welded or bonded to a fixed part of either the upper mold surface or the lower mold surface. If the fixing member insertion holes provided in the cement molded product differ from each other, either the upper mold surface or the lower mold surface can be bonded with a joining force that does not move during press molding. It may be temporarily attached to a certain fixed portion on one side and easily reattached to another portion. As a method of temporary attachment, for example, a method by screwing can be mentioned.
【００１１】本発明１において、弾性体は、閉型時にピ
ンの先端を当接させて、金型内の成形品形成部にセメン
ト成形用材料が入り込まない部分、つまり得られるセメ
ント成形品に固定部材挿通孔を形成する部分を形成させ
るとともに、ピンの先端が直接型面に接触して型面を傷
つけない機能を果たすものであって、例えば、合成ゴム
や天然ゴム等の材料からなるものが使用される。In the first aspect of the present invention, the elastic body is fixed to a portion where the cement molding material does not enter the molding product forming portion in the mold, that is, the cement molding product to be obtained by abutting the tip of the pin when the mold is closed. In addition to forming a part for forming a member insertion hole, the pin tip has a function of not directly contacting the mold surface and damaging the mold surface, for example, one made of a material such as synthetic rubber or natural rubber. used.
【００１２】弾性体は、上記のピンの場合と同様に、ピ
ンが設けられていない方の上型の型面又は下型の型面の
所定の部位に熔接、接着等により固着されてもよいし、
又、仮着されていてもよい。Similar to the case of the above-mentioned pin, the elastic body may be fixed to a predetermined portion of the upper mold surface or the lower mold surface on which the pin is not provided by welding, adhesion or the like. Then
It may also be temporarily attached.
【００１３】本発明１において、硬質部材は、弾性体の
周囲をピンに当接する部分を残して被覆し、プレス成形
時に弾性体がセメント成形用材料に押圧されて変形する
のを防止する機能を果たすものであって、例えば、金属
材料等の変形しにくい材料からなるものが使用される。In the first aspect of the present invention, the hard member has a function of covering the periphery of the elastic body except for the portion contacting the pin, and preventing the elastic body from being pressed and deformed by the cement molding material during press molding. What is achieved is, for example, a material made of a material such as a metal material that is difficult to deform is used.
【００１４】本発明１を用いて得られるセメント成形品
としては、例えば、セメント、骨材、補強繊維、及び水
を混合したセメント成形用材料をプレス成形法により所
定の形状に成形した後、所定の条件にて一定時間養生さ
せたり、必要に応じて更に脱水プレス成形した後に、所
定の条件にて一定時間養生させたりした後、表面部分に
所望の塗装等がなされて完成されたものであり、具体的
には、ブロック、波板状瓦、平板状瓦、役物瓦等の屋根
材、外壁材、コーナー材等の建築用部材が挙げられる。As a cement molded product obtained by using the present invention 1, for example, a cement molding material obtained by mixing cement, aggregate, reinforcing fiber, and water is molded into a predetermined shape by a press molding method, and then a predetermined shape is obtained. After being cured for a certain period of time under the conditions described above, or further dehydration press-molded as required, and then cured for a certain period of time under the specified conditions, the desired coating, etc., was made on the surface to complete the product. Specific examples include building materials such as blocks, corrugated roof tiles, flat roof tiles, roof tiles such as accessory tiles, outer wall materials, and corner materials.
【００１５】本願の請求項２の発明（以下、本発明２と
いう）は、開閉自在とされた上型と下型とを備え、上型
の型面及び下型の型面の一方に多数の搾水用吸引孔が設
けられ、その搾水用吸引孔が設けられた型面に水切り鉄
板が取付け自在とされ、水切り鉄板又は水切り鉄板が取
り付けられない方の型面のいずれか一方にピンが設けら
れ、他方に上記ピンに当接するように弾性体が設けら
れ、その弾性体の周囲が硬質部材により上記ピンに当接
する部分を残して被覆されているセメントプレス成形用
金型である。The invention of claim 2 of the present application (hereinafter referred to as the present invention 2) includes an upper mold and a lower mold which can be opened and closed, and a large number of molds are provided on one of the upper mold face and the lower mold face. A water drainage suction hole is provided, and a draining iron plate can be freely attached to the mold surface provided with the water drainage suction hole.A pin is provided on either the draining iron plate or the mold surface on which the draining iron plate is not attached. The cement press molding die is provided on the other side, and an elastic body is provided on the other side so as to come into contact with the pin, and the periphery of the elastic body is covered by a hard member except for a portion that comes into contact with the pin.
【００１６】本発明２において、金型としては、開閉自
在とされた上型と下型とを備え、上型及び下型の少なく
とも一方に多数の搾水用吸引孔が設けられ、その搾水用
吸引孔が設けられた型面に水切り鉄板が取付け自在とさ
れ、閉型時に内面に成形すべきセメント成形品の外面形
状に対応する内面形状を有する型面が形成される脱水プ
レス成形用金型が使用される。In the present invention 2, the mold includes an upper mold and a lower mold that can be opened and closed, and a large number of water suction holes are provided in at least one of the upper mold and the lower mold. Dewatering press forming metal in which a draining iron plate can be freely attached to the mold surface provided with suction holes for forming a mold surface having an inner surface shape corresponding to the outer surface shape of the cement molded product to be molded on the inner surface when the mold is closed. Type is used.
【００１７】本発明２においては、水切り鉄板又は水切
り鉄板が取り付けられない方の型面のいずれか一方にピ
ンが設けられている。又、ピンが設けられていない方の
水切り鉄板又は水切り鉄板が取り付けられない方の型面
に、閉型したときピンに当接するように弾性体が成形品
形成部に突出するように設けられている。そして、弾性
体の周囲が硬質部材によりピンに当接する部分を残して
被覆されている。本発明２において、ピン、弾性体及び
硬質部材は、本発明１と同様のものが同様に設けられ
る。According to the second aspect of the present invention, the pin is provided on either the draining iron plate or the mold surface to which the draining iron plate is not attached. In addition, an elastic body is provided on the molding plate on which the pin is not provided or on the mold surface on which the draining plate is not attached so that the elastic body projects into the molded product forming portion so as to contact the pin when the mold is closed. There is. Then, the periphery of the elastic body is covered by the hard member, leaving a portion in contact with the pin. In the second aspect of the invention, the same pins, elastic bodies, and hard members as in the first aspect of the invention are provided.
【００１８】本発明２を用いて得られるセメント成形品
としては、例えば、セメント、骨材、補強繊維、及び水
を混合したセメント成形用材料を脱水プレス成形法によ
り所定の形状に成形した後、所定の条件にて一定時間養
生させた後、表面部分に所望の塗装等がなされて完成さ
れたものであり、具体的には、波板状瓦、平板状瓦、役
物瓦等の屋根材、外壁材、コーナー材等の建築用部材が
挙げられる。As the cement molded product obtained by using the present invention 2, for example, a cement molding material in which cement, aggregate, reinforcing fiber, and water are mixed is molded into a predetermined shape by dewatering press molding, After being cured for a certain period of time under prescribed conditions, the surface part was completed with desired coating, etc. Specifically, it is a roof material such as corrugated roof tiles, flat roof tiles, and accessory roof tiles. , Building materials such as outer wall materials and corner materials.
【００１９】本願の請求項３の発明（以下、本発明３と
いう）は、開閉自在とされた上型と下型とを備え、上型
の型面及び下型の型面の両方に多数の搾水用吸引孔が設
けられ、それぞれの搾水用吸引孔が設けられた型面に水
切り鉄板が取付け自在とされ、上型の型面に取り付けら
れた水切り鉄板又は下型の型面に取り付けられた水切り
鉄板のいずれか一方にピンが設けられ、他方に上記ピン
に当接するように弾性体が設けられ、その弾性体の周囲
が硬質部材により上記ピンに当接する部分を残して被覆
されているセメントプレス成形用金型である。The invention of claim 3 of the present application (hereinafter referred to as the present invention 3) includes an upper mold and a lower mold that can be opened and closed, and a large number of mold surfaces are provided on both the upper mold surface and the lower mold surface. Suction holes for water tapping are provided, and a draining iron plate can be freely attached to the mold surface provided with each suction hole for water tapping, and is attached to the draining iron plate attached to the mold surface of the upper mold or the mold surface of the lower mold. A pin is provided on one of the drained iron plates, and an elastic body is provided on the other side so as to abut the pin, and the periphery of the elastic body is covered by a hard member, leaving a portion abutting the pin. This is a mold for cement press molding.
【００２０】本発明３において、金型としては、開閉自
在とされた上型と下型とを備え、上型及び下型の両方に
多数の搾水用吸引孔が設けられ、それぞれの搾水用吸引
孔が設けられた型面に水切り鉄板が取付け自在とされ、
閉型時に内面に成形すべきセメント成形品の外面形状に
対応する内面形状を有する型面が形成される脱水プレス
成形用金型が使用される。In the present invention 3, the mold includes an upper mold and a lower mold which can be opened and closed, and a large number of water suction holes are provided in both the upper mold and the lower mold, and the respective water squeezers are used. The draining iron plate can be freely attached to the mold surface provided with the suction holes for
A mold for dehydration press molding is used in which a mold surface having an inner surface shape corresponding to the outer surface shape of a cement molded product to be molded on the inner surface is formed when the mold is closed.
【００２１】本発明３においては、上型の型面に取り付
けられた水切り鉄板又は下型の型面に取り付けられた水
切り鉄板のいずれか一方にピンが設けられている。又、
ピンが設けられていない方の水切り鉄板に、閉型したと
きピンに当接するように弾性体が成形品形成部に突出す
るように設けられている。そして、弾性体の周囲が硬質
部材によりピンに当接する部分を残して被覆されてい
る。In the third aspect of the present invention, the pin is provided on either the draining iron plate attached to the mold surface of the upper die or the draining iron plate attached to the die surface of the lower mold. or,
An elastic body is provided on the draining iron plate on which the pin is not provided so as to project into the molded product forming portion so as to contact the pin when the mold is closed. Then, the periphery of the elastic body is covered by the hard member, leaving a portion in contact with the pin.
【００２２】本発明３において、ピン、弾性体及び硬質
部材は、本発明１と同様のものが同様に設けられる。本
発明３を用いて得られるセメント成形品としては、本発
明２と同様のものが挙げられる。In the third aspect of the present invention, the same pins, elastic bodies and hard members as those of the first aspect are provided. Examples of the cement molded product obtained by using the present invention 3 include the same as those of the present invention 2.
【００２３】[0023]
【作用】本発明１のセメントプレス成形用金型は、上型
の型面又は下型の型面のいずれか一方に設けられたピン
に当接する部分を残して、上型の型面又は下型の型面の
いずれか他方に設けられた弾性体の周囲が硬質部材によ
り被覆されていることにより、金型にセメント成形用材
料を供給し閉型してプレス成形する際に、弾性体がセメ
ント成形用材料に押圧されて変形するのを防止すること
ができ、ピンの先端を弾性体に当接させて、金型内にセ
メント成形用材料が入り込まない部分を形成させ、且
つ、ピンが直接型面に接触して型面を傷付けることもな
く、外観及び強度に優れ、且つ貫通する固定部材挿通孔
が確実に形成されたセメント成形品を簡単に製造するこ
とができる。The mold for cement press molding according to the first aspect of the present invention is such that the upper mold surface or the lower mold surface is left, except for the portion contacting the pin provided on either the upper mold surface or the lower mold surface. Since the periphery of the elastic body provided on either of the mold surfaces of the mold is covered with the hard member, the elastic body is formed when the cement molding material is supplied to the mold and the mold is closed and press-molded. It is possible to prevent the cement molding material from being deformed by being pressed, the tip of the pin is brought into contact with the elastic body to form a portion where the cement molding material does not enter the mold, and the pin is It is possible to easily manufacture a cement molded product which is excellent in appearance and strength, and in which the fixing member insertion hole that penetrates is surely formed without directly contacting the mold surface and damaging the mold surface.
【００２４】本発明２のセメントプレス成形用金型は、
水切り鉄板又は水切り鉄板が取り付けられない方の型面
のいずれか一方に設けられたピンに当接する部分を残し
て、水切り鉄板又は水切り鉄板が取り付けられない方の
型面のいずれか他方に設けられた弾性体の周囲が硬質部
材により被覆されていることにより、金型にセメント成
形用材料を供給し閉型してプレス成形する際に、弾性体
がセメント成形用材料に押圧されて変形するのを防止す
ることができるので、ピンの先端を弾性体に当接させ
て、金型内にセメント成形用材料が入り込まない部分を
形成させ、且つ、ピンが直接型面に接触して型面を傷付
けることもなく、外観及び強度に優れ、且つ貫通する固
定部材挿通孔が確実に形成されたセメント成形品を簡単
に製造することができる。The mold for cement press molding according to the present invention 2 is
It is provided on the other side of the draining iron plate or the die surface on which the draining iron plate is not attached, leaving a portion that contacts the pin provided on either the draining iron plate or the die surface on which the draining iron plate is not attached. Since the periphery of the elastic body is covered with a hard member, when the cement molding material is supplied to the mold and the mold is closed and press-molded, the elastic body is pressed and deformed by the cement molding material. Therefore, the tip of the pin is brought into contact with the elastic body to form a portion where the cement molding material does not enter in the mold, and the pin directly contacts the mold surface to form the mold surface. It is possible to easily manufacture a cement molded product which is excellent in appearance and strength without being damaged, and in which the fixing member insertion hole penetrating therethrough is surely formed.
【００２５】本発明３のセメントプレス成形用金型は、
上型の型面に取り付けられた水切り鉄板又は下型の型面
に取り付けられた水切り鉄板のいずれか一方に設けられ
たピンに当接する部分を残して、上型の型面に取り付け
られた水切り鉄板又は下型の型面に取り付けられた水切
り鉄板のいずれか他方に設けられた弾性体の周囲が硬質
部材により被覆されていることにより、金型にセメント
成形用材料を供給し閉型してプレス成形する際に、弾性
体がセメント成形用材料に押圧されて変形するのを防止
することができるので、ピンの先端が弾性体に当接させ
て、金型内にセメント成形用材料が入り込まない部分を
形成させ、且つ、ピンが直接型面に接触して型面を傷付
けることもなく、外観及び強度に優れ、且つ貫通する固
定部材挿通孔が確実に形成されたセメント成形品を簡単
に製造することができる。The mold for cement press molding of the present invention 3 is
Drainer attached to the mold surface of the upper mold, leaving a portion that contacts the pin provided on either the drainer iron plate attached to the mold surface of the upper mold or the drainer iron plate attached to the mold surface of the lower mold Either the iron plate or the draining iron plate attached to the mold surface of the lower mold is covered with a hard member around the elastic body provided on the other side, so that the cement molding material is supplied to the mold to close the mold. During press molding, it is possible to prevent the elastic body from being pressed and deformed by the cement molding material, so that the tip of the pin contacts the elastic body and the cement molding material enters the mold. The cement molded product can be easily formed by forming a non-existing part, and the pin does not directly contact the mold surface to damage the mold surface, has excellent appearance and strength, and securely has the fixing member insertion hole penetrating therethrough. Can be manufactured Kill.
【００２６】[0026]
【実施例】以下、本発明の実施例を図面を参照して説明
する。図１は、本発明１のセメントプレス用金型の一例
を示す断面図であり、図２はその要部を示す断面図であ
る。図１に示す如く、１は平板状瓦のセメントプレス成
形用金型であって、上型１１と下型１２を備えている。
下型１２の周囲には枠体１３が設けられている。そし
て、上型１１と下型１２の型面及び枠体１３の間には、
閉型したときに成形すべき平板状瓦の外形に対応する内
面形状を有する成形体形成部１４が形成されている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an example of a mold for cement press of the present invention 1, and FIG. 2 is a sectional view showing a main part thereof. As shown in FIG. 1, reference numeral 1 denotes a cement press molding die for a flat roof tile, which includes an upper mold 11 and a lower mold 12.
A frame 13 is provided around the lower die 12. Then, between the mold surfaces of the upper mold 11 and the lower mold 12 and the frame body 13,
A molded body forming portion 14 having an inner surface shape corresponding to the outer shape of the flat roof tile to be molded when the mold is closed is formed.
【００２７】図２にも要部を拡大して示す如く、下型１
２の型面の所定部位にピン１５が成形体形成部１４に突
出するように熔接により固着されるようにして設けられ
ている。ピン１５は金属材料からなり、横断面外形が円
形をなし、先端がやや尖った短尺棒状体である。上型１
１の、下型１２に設けられたピン１５に対応する部位
に、合成ゴムからなる弾性体１６が接着剤により固着さ
れるようにして設けられている。弾性体１６の周囲は金
属材料からなる硬質物質１７によりピン１５の先端が当
接する頂部を残して被覆されている。As shown in the enlarged view of FIG. 2, the lower mold 1
A pin 15 is provided at a predetermined portion of the mold surface of the second mold so as to be fixed to the molded body forming portion 14 by welding so as to project. The pin 15 is made of a metal material, has a circular cross-sectional outer shape, and is a short rod-shaped body with a slightly pointed tip. Upper mold 1
An elastic body 16 made of synthetic rubber is provided on a portion of the first mold 1 corresponding to the pin 15 provided on the lower mold 12 by an adhesive. The periphery of the elastic body 16 is covered with a hard substance 17 made of a metal material, leaving a top portion with which the tip of the pin 15 abuts.
【００２８】以下、図１に示す金型の使用態様を図３及
び図４を参照して説明する。まず、図３に示す如く、下
型１２の型面上にセメント成形用材料２を供給し、上型
１１を下型１２上に下降させることにより閉型してプレ
ス成形を行う。The mode of use of the mold shown in FIG. 1 will be described below with reference to FIGS. 3 and 4. First, as shown in FIG. 3, the cement molding material 2 is supplied onto the mold surface of the lower mold 12, and the upper mold 11 is lowered onto the lower mold 12 to close the mold and perform press molding.
【００２９】この際、弾性体１６はその周囲が硬質部材
１７によりピン１５が当接する頂部を残して被覆されて
いるので、セメント成形用材料２に押圧されて変形する
ことがない。そして、成形品形成部１４内には、ピン１
５の先端が弾性体１６の頂部に当接され、ピン１５、弾
性体１６及び硬質部材１７に対応するセメント成形用材
料２が入り込まない部分、つまり、ピン１５、弾性体１
６及び硬質部材１７を脱型したときに得られるセメント
成形品に固定部材挿通孔を形成する部分が形成されてい
る。At this time, since the elastic body 16 is covered by the hard member 17 except for the top portion with which the pin 15 abuts, the elastic body 16 is not pressed and deformed by the cement molding material 2. Then, in the molded product forming portion 14, the pin 1
The tip of 5 abuts on the top of the elastic body 16, and the portion corresponding to the pin 15, the elastic body 16 and the hard member 17 where the cement molding material 2 does not enter, that is, the pin 15, the elastic body 1
A portion for forming a fixing member insertion hole is formed in the cement molded product obtained when the 6 and the hard member 17 are demolded.
【００３０】次に、図４に示す如く、上型１１を上昇さ
せることにより開型する。下型１２上には、プレス成形
された未硬化状態の平板状瓦３が載置されている。この
未硬化状態の平板状瓦を、図示しないバキュームキャッ
チ等により吸い付けて上昇させることにより、下型の型
面に設けられたピン１５より抜き去るようにして下型１
２及び枠体１３より脱型し、特に図示しないが、搬送し
て受型上に載置し、受型上とともに養生炉内にて、所定
条件にて養生硬化を行った後、養生炉より取り出して、
最後に受型を取り外して、ピン、弾性体及び硬質部材を
脱型した部分に対応する固定部材挿通用孔が設けられた
硬化状態の平板状瓦を得る。Next, as shown in FIG. 4, the upper mold 11 is raised to open the mold. On the lower mold 12, the press-molded uncured flat roof tile 3 is placed. The flat roof tile in the uncured state is sucked and raised by a vacuum catch or the like (not shown) so as to be pulled out from the pin 15 provided on the mold surface of the lower mold.
Although not shown in the figure, the mold is removed from the frame 2 and the frame body 13, and is conveyed and placed on a mold, and after curing and curing under predetermined conditions in the cure furnace together with the mold, from the cure furnace. Take it out
Finally, the receiving mold is removed to obtain a cured flat roof tile provided with fixing member insertion holes corresponding to the parts from which the pins, elastic bodies and hard members have been removed.
【００３１】図５は、本発明２のセメントプレス成形用
金型の一例を示す断面図、図６はその要部を示す断面図
である。図５に示す如く、４は瓦の脱水プレス成形用金
型であって、上型４１と下型４２を備えている。上型４
１には多数の搾水兼搬送用の真空吸引孔４１１が設けら
れている。下型４２の周囲には枠体４３が設けられてい
る。FIG. 5 is a sectional view showing an example of the cement press molding die of the present invention 2, and FIG. 6 is a sectional view showing the main part thereof. As shown in FIG. 5, reference numeral 4 denotes a roof tile dewatering press molding die including an upper die 41 and a lower die 42. Upper mold 4
1 is provided with a large number of vacuum suction holes 411 for both water squeezing and transportation. A frame body 43 is provided around the lower die 42.
【００３２】そして、上型４１と下型４２の型面及び枠
体４３の間には、閉型したときに成形すべき瓦の外面形
状に対応する内面形状を有する成形体形成部４４が形成
される。上型４１の型面には真空吸引孔４１１より吸引
するようにして水切り鉄板４５が取付け自在とされてい
る。A molded body forming portion 44 having an inner surface shape corresponding to the outer surface shape of the roof tile to be molded when the mold is closed is formed between the mold surfaces of the upper mold 41 and the lower mold 42 and the frame body 43. To be done. A draining iron plate 45 is attachable to the die surface of the upper die 41 so as to be sucked from the vacuum suction hole 411.
【００３３】図６にも拡大して示す如く、下型４２の型
面の所定部位にピン４６が成形体形成部４４に突出する
ように熔接により固着されるようにして設けられてい
る。ピン４６は金属材料からなり、横断面外形が円形を
なし、先端がやや尖った短尺棒状体である。As shown in an enlarged view in FIG. 6, a pin 46 is provided at a predetermined portion of the mold surface of the lower mold 42 so as to be fixed by welding so as to project to the molded body forming portion 44. The pin 46 is a short rod-shaped body made of a metal material, having a circular cross-sectional outer shape, and a slightly pointed tip.
【００３４】上型４１の型面に取り付けられた水切り鉄
板４５の、下型４２に設けられたピン４６に対応する部
位に、合成ゴムからなる弾性体４７が接着剤により固着
されるようにして設けられている。弾性体４７の周囲は
金属材料からなる硬質部材４８によりピン４６の先端が
当接する頂部を残して被覆されている。水切り鉄板４５
の弾性体４７及び硬質部材４８の設けられた部分以外の
成形体形成部４４側の面に、脱水布４９が取り付けられ
ている。An elastic body 47 made of synthetic rubber is fixed by an adhesive to a portion of the draining iron plate 45 attached to the die surface of the upper die 41 corresponding to the pin 46 provided on the lower die 42. It is provided. The periphery of the elastic body 47 is covered with a hard member 48 made of a metal material, leaving a top portion with which the tip of the pin 46 abuts. Draining iron plate 45
A dehydrating cloth 49 is attached to the surface of the molded body forming portion 44 side other than the portions where the elastic body 47 and the hard member 48 are provided.
【００３５】以下、図５に示す金型の使用態様を図７及
び図８を参照して説明する。まず、図７に示す如く、下
型４２の型面上にセメント成形用材料５を供給し、上型
４１を下型４２上に下降させることにより閉型して、真
空吸引孔４１１より吸引して脱水及び脱泡を行いつつプ
レス成形を行う。The usage of the mold shown in FIG. 5 will be described below with reference to FIGS. 7 and 8. First, as shown in FIG. 7, the cement molding material 5 is supplied onto the mold surface of the lower mold 42, and the upper mold 41 is lowered onto the lower mold 42 to close the mold and suck through the vacuum suction hole 411. Press molding is performed while dehydrating and defoaming.
【００３６】この際、弾性体４７はその周囲が硬質部材
４８によりピン４６が当接する頂部を残して被覆されて
いるので、セメント成形用材料に押圧されて変形するこ
とがない。そして、成形品形成部４４内には、ピン４６
の先端が弾性体４７の頂部に当接され、ピン４６、弾性
体４７及び硬質部材４８に対応するセメント成形用材料
５が入り込まない部分、つまり、ピン４６、弾性体４７
及び硬質部材４８を脱型したときに得られるセメント成
形品に固定部材挿通孔を形成する部分が形成されてい
る。At this time, since the periphery of the elastic body 47 is covered by the hard member 48 except for the top portion with which the pin 46 abuts, it is not deformed by being pressed by the cement molding material. Then, a pin 46 is provided in the molded product forming portion 44.
End of the elastic body 47 is brought into contact with the top of the elastic body 47, and the portion corresponding to the pin 46, the elastic body 47 and the hard member 48 where the cement molding material 5 does not enter, that is, the pin 46, the elastic body 47.
Further, a portion for forming a fixing member insertion hole is formed in the cement molded product obtained when the hard member 48 is removed from the mold.
【００３７】次に、図８に示す如く、真空吸引孔４１１
より吸引を継続しつつ、上型４１の型面に脱水プレス成
形された未硬化状態の瓦６を吸い付けたままを上昇させ
ることにより、下型の型面に設けられたピン４６より抜
き去るようにして下型４２及び枠体４３より脱型する。
この状態で、特に図示しないが、上型を水平移動させた
後受型上に下降させ、真空吸引孔からの吸引を停止して
受型上に未硬化状態の瓦を載置する。この未硬化状態の
瓦を受型上とともに養生炉内にて、所定条件にて養生硬
化を行った後、養生炉より取り出して、最後に受型を取
り外して、固定部材挿通用孔が設けられた硬化状態の瓦
を得る。Next, as shown in FIG. 8, a vacuum suction hole 411 is formed.
While continuing the suction, the uncured roof tile 6 that has been dehydrated and press-molded on the mold surface of the upper mold 41 is lifted up to be removed from the pin 46 provided on the mold surface of the lower mold. In this way, the lower mold 42 and the frame 43 are demolded.
In this state, although not particularly shown, the upper die is horizontally moved and then lowered onto the receiving die, suction from the vacuum suction holes is stopped, and the uncured roof tile is placed on the receiving die. This roof tile in the uncured state is cured together with the receiving mold in a curing furnace under predetermined conditions, then removed from the curing furnace, and finally the receiving mold is removed to provide a fixing member insertion hole. Get a cured roof tile.
【００３８】図９は、本発明３のセメントプレス成形用
金型の一例を示す断面図、図１０はその要部を示す断面
図である。図９に示す如く、７は瓦の脱水プレス成形用
金型であって、上型７１と下型７２を備えている。上型
７１及び下型７２にはそれぞれ搾水兼搬送用の真空吸引
孔７１１，７１２が多数設けられている。下型７２の周
囲には枠体７３が設けられている。FIG. 9 is a sectional view showing an example of the cement press molding die of the present invention 3, and FIG. 10 is a sectional view showing the main part thereof. As shown in FIG. 9, a roof tile dehydration press molding die includes an upper die 71 and a lower die 72. Each of the upper mold 71 and the lower mold 72 is provided with a large number of vacuum suction holes 711 and 712 for squeezing and carrying. A frame 73 is provided around the lower die 72.
【００３９】そして、上型７１と下型７２の型面及び枠
体７３の間には、閉型したときに成形すべき瓦の外面形
状に対応する内面形状を有する成形体形成部７４が形成
される。上型７１の型面及び下型７２の型面にはそれぞ
れ真空吸引孔７１１，７２１より吸引するようにして水
切り鉄板７６，７７が取付け自在とされている。A molded body forming portion 74 having an inner surface shape corresponding to the outer surface shape of the roof tile to be molded when the mold is closed is formed between the mold surfaces of the upper mold 71 and the lower mold 72 and the frame 73. To be done. Draining iron plates 76 and 77 are attached to the die surface of the upper die 71 and the die surface of the lower die 72 so as to be sucked from the vacuum suction holes 711 and 721, respectively.
【００４０】図１０にも拡大して示す如く、下型７２の
型面に取り付けられる水切り鉄板７７の所定部位にピン
７８が成形体形成部７４に突出するように熔接により固
着されるようにして設けられている。ピン７８は金属材
料からなり、横断面外形が円形をなし、先端がやや尖っ
た短尺棒状体である。As shown in an enlarged view in FIG. 10, a pin 78 is fixed to a predetermined portion of a draining iron plate 77 attached to the die surface of the lower die 72 by welding so that the pin 78 projects into the molded body forming portion 74. It is provided. The pin 78 is made of a metallic material, has a circular cross-sectional outer shape, and is a short rod-shaped body having a slightly pointed tip.
【００４１】上型７１の型面に取り付けられる水切り鉄
板７６の、ピン７８に対応する部位に、合成ゴムからな
る弾性体７９が接着剤により固着されるようにして設け
られている。弾性体７９の周囲は金属材料からなる硬質
部材８０によりピン７８の先端が当接する頂部を残して
被覆されている。水切り鉄板７７のピン７８が設けられ
た部分以外の成形体形成部７４側の面に脱水布８１が取
り付けられている。又、水切り鉄板７６の弾性体７９及
び硬質部材８０が設けられた部分以外の成形体形成部７
４側の面に脱水布８１が取り付けられている。An elastic body 79 made of synthetic rubber is provided on a portion of the draining iron plate 76 attached to the die surface of the upper die 71 corresponding to the pin 78 by an adhesive. The periphery of the elastic body 79 is covered with a hard member 80 made of a metal material, leaving a top portion with which the tip of the pin 78 abuts. A dehydrating cloth 81 is attached to the surface of the draining iron plate 77 on the side of the molded body forming portion 74 other than the portion where the pins 78 are provided. Further, the molded body forming portion 7 other than the portion of the draining iron plate 76 where the elastic body 79 and the hard member 80 are provided.
A dehydrating cloth 81 is attached to the surface on the 4th side.
【００４２】以下、図９に示す金型の使用態様を図１１
及び図１２を参照して説明する。まず、図１１に示す如
く、下型７２の型面に取り付けられた水切り鉄板７６上
にセメント成形用材料８を供給し、上型７１を下型７２
上に下降させることにより閉型して、真空吸引孔７１
１，７２１より吸引して脱水及び脱泡を行いつつプレス
成形を行う。Hereinafter, the manner of use of the mold shown in FIG. 9 is shown in FIG.
And FIG. 12 will be described. First, as shown in FIG. 11, the cement molding material 8 is supplied onto the draining iron plate 76 attached to the mold surface of the lower mold 72, and the upper mold 71 is moved to the lower mold 72.
The vacuum suction hole 71 is closed by lowering the mold.
Press molding is performed while suctioning from 1,721 to perform dehydration and defoaming.
【００４３】この際、弾性体７９はその周囲が硬質部材
８０によりピン７８が当接する頂部を残して被覆されて
いるので、セメント成形用材料８に押圧されて変形する
ことかない。そして、成形品形成部７４内には、ピン７
８の先端が弾性体７９の頂部に当接され、ピン７８、弾
性体７９及び硬質部材８０に対応するセメント成形用材
料８が入り込まない部分、つまり、ピン７８、弾性体７
９及び硬質部材８０を脱型したときに得られるセメント
成形品に固定部材挿通孔を形成する部分が形成されてい
る。At this time, since the elastic body 79 is covered by the hard member 80 except for the top portion with which the pin 78 abuts, the elastic body 79 is not deformed by being pressed by the cement molding material 8. Then, in the molded product forming portion 74, the pin 7
The tip of 8 abuts on the top of the elastic body 79, and the portion corresponding to the pin 78, the elastic body 79, and the hard member 80 where the cement molding material 8 does not enter, that is, the pin 78, the elastic body 7
The cement molded product obtained when the mold 9 and the hard member 80 are demolded is provided with a portion for forming a fixing member insertion hole.
【００４４】次に、図１２に示す如く、下型７２の真空
吸引孔７２１の吸引を停止し、上型７１の真空吸引孔７
１１より吸引を継続しつつ、上型７１の型面に脱水プレ
ス成形された未硬化状態の瓦９を吸い付けたままを上昇
させることにより、未硬化状態の瓦９をピン７８より抜
き去るようにして下型７２の型面に取り付けられた水切
り鉄板７７、脱水布８１及び枠体７３より脱型する。。
この状態で、特に図示しないが、上型を水平移動させた
後受型上に下降させ、真空吸引孔からの吸引を停止して
受型上に未硬化状態の瓦を載置する。この未硬化状態の
瓦を受型上とともに養生炉内にて、所定条件にて養生硬
化を行った後、養生炉より取り出して、最後に受型を取
り外して、固定部材挿通用孔が設けられた硬化状態の瓦
を得る。Next, as shown in FIG. 12, the suction of the vacuum suction holes 721 of the lower mold 72 is stopped, and the vacuum suction holes 7 of the upper mold 71 are stopped.
While continuing suction from 11, the uncured roof tile 9 that has been dehydrated and press-molded on the mold surface of the upper mold 71 is lifted up to remove the uncured roof tile 9 from the pin 78. Then, the mold is removed from the draining iron plate 77, the dehydrating cloth 81 and the frame 73 attached to the mold surface of the lower mold 72. .
In this state, although not particularly shown, the upper die is horizontally moved and then lowered onto the receiving die, suction from the vacuum suction holes is stopped, and the uncured roof tile is placed on the receiving die. This roof tile in the uncured state is cured together with the receiving mold in a curing furnace under predetermined conditions, then removed from the curing furnace, and finally the receiving mold is removed to provide a fixing member insertion hole. Get a cured roof tile.
【００４５】[0045]
【発明の効果】本発明１〜本発明３は、それぞれ、上記
の如き構成とされているので、外観及び強度に優れ、且
つ貫通する固定部材挿通孔が確実に形成されたセメント
成形品を簡単に製造することができる。EFFECTS OF THE INVENTION Since each of the present inventions 1 to 3 is configured as described above, a cement molded article having excellent appearance and strength and having a fixed member insertion hole penetrating therethrough can be formed easily. Can be manufactured.
【図１】本発明１の金型の一例を示す断面図である。FIG. 1 is a cross-sectional view showing an example of a mold of the first invention.
【図２】図１に示す金型の要部を示す断面図である。FIG. 2 is a cross-sectional view showing a main part of the mold shown in FIG.
【図３】図１に示す金型の使用態様における前半の工程
を示す断面図である。FIG. 3 is a cross-sectional view showing the first half of the process of using the mold shown in FIG.
【図４】図１に示す金型の使用態様における後半の工程
を示す断面図である。FIG. 4 is a cross-sectional view showing the latter half of the steps of using the mold shown in FIG.
【図５】本発明２の金型の一例を示す断面図である。FIG. 5 is a cross-sectional view showing an example of a mold of the second invention.
【図６】図５に示す金型の要部を示す断面図である。6 is a cross-sectional view showing a main part of the mold shown in FIG.
【図７】図５に示す金型の使用態様における前半の工程
を示す断面図である。FIG. 7 is a cross-sectional view showing the first half of the process of using the mold shown in FIG.
【図８】図５に示す金型の使用態様における後半の工程
を示す断面図である。FIG. 8 is a cross-sectional view showing a second half of the process of using the mold shown in FIG.
【図９】本発明３の金型の一例を示す断面図である。FIG. 9 is a cross-sectional view showing an example of a mold of the third invention.
【図１０】図９に示す金型の要部を示す断面図である。10 is a cross-sectional view showing the main parts of the mold shown in FIG.
【図１１】図９に示す金型の使用態様における前半の工
程を示す断面図である。FIG. 11 is a cross-sectional view showing the first half of the process of using the mold shown in FIG. 9.
【図１２】図９に示す金型の使用態様における後半の工
程を示す断面図である。FIG. 12 is a cross-sectional view showing the latter half of the steps of using the mold shown in FIG.
【図１３】従来の金型を示す断面図である。FIG. 13 is a cross-sectional view showing a conventional mold.
【図１４】図１３に示す金型を用いて得た瓦を示す断面
図である。FIG. 14 is a cross-sectional view showing a roof tile obtained by using the mold shown in FIG.
１ プレス成形用金型 ２、５、８ セメント成形用材料 ３ 未硬化状態の平板状瓦 ４、７ 脱水プレス成形用金型 ６、９ 未硬化状態の瓦 １１、４１、７１ 上型 １２、４２、７２ 下型 １３、４３、７３ 枠体 １４、４４、７４ 成形品形成部 １５、４６、７８ ピン １６、４７、７９ 弾性体 １７、４８、８０ 硬質部材 ４５、７６、７７ 水切り用鉄板 ４１１、７１１、７２１ 真空吸引孔 1 Mold for press molding 2, 5, 8 Cement molding material 3 Flat roof tile in uncured state 4, 7 Mold for dehydration press molding 6, 9 Roof tile in uncured state 11, 41, 71 Upper mold 12, 42 , 72 Lower mold 13, 43, 73 Frame body 14, 44, 74 Molded product forming portion 15, 46, 78 Pins 16, 47, 79 Elastic body 17, 48, 80 Hard member 45, 76, 77 Draining iron plate 411, 711, 721 Vacuum suction hole
Claims (3)
上型の型面又は下型の型面のいずれか一方にピンが設け
られ、他方に閉型時に上記ピンに当接するように弾性体
が設けられ、その弾性体の周囲が硬質部材により上記ピ
ンに当接する部分を残して被覆されていることを特徴と
するセメントプレス成形用金型。1. An upper mold and a lower mold that can be opened and closed,
A pin is provided on either one of the upper die surface and the lower die surface, and the other is provided with an elastic body so as to come into contact with the pin when the die is closed. A mold for cement press molding, characterized in that it is covered with a portion that abuts against.
上型の型面及び下型の型面の一方に多数の搾水用吸引孔
が設けられ、その搾水用吸引孔が設けられた型面に水切
り鉄板が取付け自在とされ、水切り鉄板又は水切り鉄板
が取り付けられない方の型面のいずれか一方にピンが設
けられ、他方に上記ピンに当接するように弾性体が設け
られ、その弾性体の周囲が硬質部材により上記ピンに当
接する部分を残して被覆されていることを特徴とするセ
メントプレス成形用金型。2. An upper mold and a lower mold that can be opened and closed,
A large number of water-sucking suction holes are provided on one of the upper die surface and the lower die surface, and a draining iron plate can be freely attached to the die surface provided with the water sucking suction holes. A pin is provided on one of the mold surfaces on which the iron plate is not attached, and an elastic body is provided on the other side so as to abut the pin, and a portion around the elastic body that abuts the pin by a hard member. A mold for cement press molding, which is characterized by being left over.
上型の型面及び下型の型面の両方に多数の搾水用吸引孔
が設けられ、それぞれの搾水用吸引孔が設けられた型面
に水切り鉄板が取付け自在とされ、上型の型面に取り付
けられた水切り鉄板又は下型の型面に取り付けられた水
切り鉄板のいずれか一方にピンが設けられ、他方に上記
ピンに当接するように弾性体が設けられ、その弾性体の
周囲が硬質部材により上記ピンに当接する部分を残して
被覆されていることを特徴とするセメントプレス成形用
金型。3. An upper mold and a lower mold which can be opened and closed,
A large number of water suction holes are provided on both the upper die surface and the lower die surface, and a draining iron plate can be freely attached to the die surface provided with each water suction hole. A pin is provided on either the draining iron plate attached to the die surface or the draining iron plate attached to the die surface of the lower die, and the other is provided with an elastic body so as to abut the pin, and the periphery of the elastic body A die for cement press molding, characterized in that it is covered with a hard member, leaving a portion in contact with the pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33700092A JPH06182736A (en) | 1992-12-17 | 1992-12-17 | Cement press mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33700092A JPH06182736A (en) | 1992-12-17 | 1992-12-17 | Cement press mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06182736A true JPH06182736A (en) | 1994-07-05 |
Family
ID=18304541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33700092A Pending JPH06182736A (en) | 1992-12-17 | 1992-12-17 | Cement press mold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06182736A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09300325A (en) * | 1996-05-13 | 1997-11-25 | Marugame Kogyosho:Kk | Manufacture of concrete plate with holes and decoration using concrete plate with holes |
| JP2000127122A (en) * | 1998-10-22 | 2000-05-09 | Tdk Corp | Draining method for wet powder material and device therefor |
-
1992
- 1992-12-17 JP JP33700092A patent/JPH06182736A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09300325A (en) * | 1996-05-13 | 1997-11-25 | Marugame Kogyosho:Kk | Manufacture of concrete plate with holes and decoration using concrete plate with holes |
| JP2000127122A (en) * | 1998-10-22 | 2000-05-09 | Tdk Corp | Draining method for wet powder material and device therefor |
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