JPH04101809A - Forming method of ceramics product - Google Patents
Forming method of ceramics productInfo
- Publication number
- JPH04101809A JPH04101809A JP22173590A JP22173590A JPH04101809A JP H04101809 A JPH04101809 A JP H04101809A JP 22173590 A JP22173590 A JP 22173590A JP 22173590 A JP22173590 A JP 22173590A JP H04101809 A JPH04101809 A JP H04101809A
- Authority
- JP
- Japan
- Prior art keywords
- molding
- mold
- ceramic product
- inserts
- press
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000000465 moulding Methods 0.000 claims description 53
- 238000009826 distribution Methods 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 5
- 238000009415 formwork Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 1
- 235000009074 Phytolacca americana Nutrition 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- KEUKAQNPUBYCIC-UHFFFAOYSA-N ethaneperoxoic acid;hydrogen peroxide Chemical compound OO.CC(=O)OO KEUKAQNPUBYCIC-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
Ｌ東上ｑ科且公団
本発明はタイル、瓦等の軽量化を図るｙ業製品の成形方
法に関するものである。[Detailed Description of the Invention] [Object of the Invention] The present invention relates to a method for molding industrial products such as tiles and roof tiles to reduce their weight.
■米少肢歪
従来、タイル、瓦等の窯業製品の軽量化を図るために、
当該製品の裏面に多数の凹部を形成するものとしては、
第１４図及び第１５図に図示する線に、上型ａと下型す
との間で素地Ｃをプレス成形する際、上型ａと下型すの
成形面ｄ、ｅと素地Ｃの上下面との間に介在する空気を
、上型ａと下型すと型枠ｆとの間に設けた間隙部ｇ或い
は駁気孔りより矢印ｉで示す様な経路で逃がしていたが
、かかる方法では型枠ｆの近縁部、即ち素地Ｃの周縁部
における空気抜きが十分に成されるとしても、上型ａと
下型すが素地ＣＬこ圧接され始めた後番こおいて、塑性
原料から成る素地Ｃは外側に移動することとなり、その
際に成形面ｄ４二形成する突起ｊを滑り流動を妨げられ
る状態となって、かかる突起ｊの隅部ｋに残留した空気
は逃げ道が無くなるためその空気抜きが出来なくなり、
このような空気存在のためにその部分への素地材料の充
填が不十分となっており、その結果、不完全な成形品や
、かかる部分が乾燥、焼成時に過度に収縮して亀裂を生
ずるような成形品が出来るため軽量化をすることが出来
ない欠点を有していた。■Small limb distortion Traditionally, in order to reduce the weight of ceramic products such as tiles and roof tiles,
As for the products that have many recesses formed on the back side of the product,
When press-molding the base C between the upper mold a and the lower mold, the lines shown in FIGS. The air interposed between the lower surface and the lower surface was released through the gap g or air hole provided between the upper mold a, the lower mold, and the mold f through the path shown by the arrow i, but this method Even if air is sufficiently vented in the vicinity of the formwork f, i.e., at the periphery of the base material C, after the upper mold a and the lower mold have started to be pressed together, the plastic raw material is removed. The base material C moves outward, and at that time, it slides on the projections j formed on the molding surface d4, and its flow is impeded, and the air remaining at the corner k of the projections j has no escape route, so it It becomes impossible to vent air,
The presence of such air may result in insufficient filling of the base material into the area, resulting in an incomplete molded product or the area shrinking excessively during drying and firing, causing cracks. This method had the disadvantage that it was not possible to reduce the weight of the molded product.
！ｌｆｆ＜”しよ゛と る
本発明は凹凸個所の接合部位又は隅部の空気を外部に排
出させて素地の流動性を向上させて完全に成形し、均一
なるハニカム状のリブを形成させ、強度りこ何ら問題な
く軽量化すると共に乾燥時の不具合を低減させ、又強度
が要求される窯業製品の中央部の強度を維持する窯業製
品の成形方法を提供せんとするものである。! In the present invention, the air in the joints or corners of uneven parts is discharged to the outside to improve the fluidity of the base material and form it completely, forming uniform honeycomb-shaped ribs. It is an object of the present invention to provide a method for molding a ceramic product that reduces the weight without any problem with strength, reduces problems during drying, and maintains the strength of the central part of the ceramic product where strength is required.
ｆ ′ るための
本発明は上記従来技術に基づく軽量化等の課題に鑑み、
金型の成形面りこ設ける六角柱状の入子又は突起と金型
との接合面位或いは隅部に設ける間隙部或いは縦孔より
成形時の残留空気を排出させて均一なハニカム状のリブ
を形成し、強度、乾燥歪上何ら問題の無い軽量化を図っ
た窯業製品を得ることを要旨とする窯業製品の成形方法
を鋸供して上記欠点を解消せんとしたものである。In view of the problems such as weight reduction based on the above-mentioned conventional technology, the present invention for
A uniform honeycomb-shaped rib is formed by discharging residual air during molding through gaps or vertical holes provided at the joint surface or corner of the hexagonal columnar insert or protrusion provided on the molding surface of the mold and the mold. However, an attempt has been made to eliminate the above-mentioned drawbacks by providing a method for molding ceramic products, the purpose of which is to obtain lightweight ceramic products without any problems in terms of strength or dry strain.
そして、成形方法としては、窯業製品の裏面に相当する
金型の成形面ムこ六角柱状の突起又は入子を、該突起又
は入子の突出高さを夫々一定にすると共に、各突起又は
入子の相互の間隈を一定に設け、且つ各突起又は入子と
金型との接合部位又は隅部に設ける間隙部又は縦孔より
キャビティ内の空気を外部に自妖排気させてプレス成形
するもの、又突起又は入子の接合部位又は隅部に設ける
間隙部又は縦孔を部分的に設けをプレス成形するもの、
又窯業製品の裏面りこ相当する金型の成形面の突起又は
入子の突出高さ又は分布密度を不均一ムこしてプレス成
形するもの、又金型の上型及び下型を共に作動させてプ
レス成形するもの、又減圧ボックス内にてプレス成形す
るものである。As a molding method, a hexagonal prism-shaped protrusion or insert is formed on the molding surface of the mold corresponding to the back surface of the ceramic product, and the protrusion height of each protrusion or insert is made constant, and each protrusion or insert is Press molding is performed by providing a constant spacing between the inserts and by exhausting the air inside the cavity to the outside through gaps or vertical holes provided at the joints or corners between each protrusion or insert and the mold. Also, those in which gaps or vertical holes are partially formed in the joint parts or corners of protrusions or inserts, and are press-molded.
Also, press molding is performed by making the protrusion height or distribution density of the protrusions or inserts on the molding surface of the mold, which corresponds to the back surface of the ceramic product, non-uniform, and the upper and lower molds of the mold are operated together. It can be press-molded or it can be press-molded in a vacuum box.
作−■
本発明にあっては金型と入子又は突起との接合部位、隅
部に残留していた空気を間隙部、簀孔より外部に排気さ
せ、入子又は突起により窯業製品にハニカム状のリブを
形成するのであるスＪ１医
以下本発明の一実施例を図面に基づいて説明すると、
１は瓦素地成形用の金型であり、該金型１は上型２、下
型２ａからなり、該上型２及び下型２ａにはタイル、瓦
等の窯業製品Ｗ（本実旋例では瓦を示す）に対応する夫
々所定の形状を有する成形面３．４を形成している。In the present invention, the air remaining in the joints and corners of the mold and the insert or protrusion is exhausted to the outside through gaps and holes, and the insert or protrusion forms a honeycomb on the ceramic product. An embodiment of the present invention will be described below based on the drawings. Reference numeral 1 denotes a mold for molding tile base material, and the mold 1 includes an upper mold 2 and a lower mold 2a. The upper mold 2 and the lower mold 2a are formed with molding surfaces 3.4 each having a predetermined shape corresponding to a ceramic product W such as a tile or roof tile (tiles are shown in this example). .
第７図及び第８図に図示される窯業製品Ｗの表面におい
て尻部及び差込部には突堤５、尻部の突堤５の前方の谷
部には、左右対称の円弧状の水返し６．６ａ、差込部の
突堤５の前方の谷部には平坦面７、又裏面においで尻側
には中央部を凹状に形成した引掛け８、平坦部より成る
反戦置部９、頭側りこは嵌合部より成る瓦戴１部］０、
多数の凹部１１、ｌｌａ・・・を夫々形成している。On the surface of the ceramic product W shown in FIGS. 7 and 8, a jetty 5 is provided at the bottom and the insertion portion, and a symmetrical arc-shaped water return 6 is provided at the valley in front of the jetty 5 at the bottom. .6a, a flat surface 7 in the trough in front of the jetty 5 of the insertion part; a hook 8 with a concave central part on the rear side; Riko is 1 part of the roof tile consisting of the fitting part] 0,
A large number of recesses 11, lla, . . . are formed respectively.
かかる凹部１１、ｌｌａ・・・としては平面視六角状と
成すと共に、窯業製品Ｗの肉厚の約半分の深さにて刻設
し、各凹部１１、ｌｌａ・・・の相互の間隔を窯業製品
Ｗの肉厚の約半分と成し、窯業製品Ｗの裏面の全面に分
布密度を均一にして設けるもの、又窯業製品Ｗの周辺部
を所定中張した全面に設けるもの、又窯業製品Ｗの中央
部○深さに対し周辺部ムニ移行するに従って各凹部１〕
、］１ａ・・・を深くすると共に、相互の間隔を小さく
して分布密度を大きくするもの等がある。The recesses 11, lla... have a hexagonal shape in plan view, and are carved at a depth approximately half the thickness of the ceramic product W, and the mutual spacing between the recesses 11, lla... It is approximately half the wall thickness of the product W, and is provided with a uniform distribution density over the entire back surface of the ceramic product W. Also, it is provided on the entire surface of the ceramic product W with a predetermined lining applied to the periphery of the ceramic product W. Each recess 1]
, ]1a... are made deeper, and the mutual spacing is made smaller to increase the distribution density.
尚、窯業製品Ｗの裏面には適宜材質から成るカバ一体１
２を張設することにより断熱効果を奏することが出来、
又土葺時には窯業製品Ｗ自体にて凹部１１、Ｉｌａ・・
・が空気留め部となって断熱効果を奏することが出来、
又水返し６．６ａにより雨水の逆流を左右に振り分は出
来る等の効果を具有させることが出来、又引掛け８の中
央部を凹状に形成していることムこより、かかる個所に
対応する突堤５での乾燥、焼成時における亀裂等を無く
すことが出来るのである。In addition, on the back side of the ceramic product W, there is a cover 1 made of an appropriate material.
By stretching 2, a heat insulation effect can be achieved.
Also, during roofing, the recesses 11, Ila...
・Can act as an air retainer and have a heat insulation effect,
In addition, the water return 6.6a can have the effect of distributing the backflow of rainwater to the left and right, and the central part of the hook 8 is formed in a concave shape, so that it can be used in such places. This makes it possible to eliminate drying on the jetty 5 and cracks during firing.
窯業製品Ｗの前記した凹凸個所（突堤５、水返し６．６
ａ、平坦面７、引掛け８、瓦載置部９、瓦載置部１０、
凹部１１、ｌｌａ・・・）に対応する上型２及び下型２
ａの成形面３．４Ｌこは別体の入子１３．１３ａ・・・
（凹部１１、ｌｌａ・・・に対応するものとしては六角
柱状に形成している）を嵌合し、上型２及び下型２ａと
入子１３．１３ａ・・・との間の接合部位】４．１４ａ
・・・に貫通する間隙部１５．１５ａ・・・を穿設して
いる。The above-mentioned uneven parts of the ceramic product W (jet 5, water return 6.6
a, flat surface 7, hook 8, tile placement part 9, tile placement part 10,
Upper mold 2 and lower mold 2 corresponding to the recesses 11, lla...)
Molding surface 3.4L of a is a separate insert 13.13a...
(Those corresponding to the recesses 11, lla... are formed in a hexagonal column shape) are fitted, and the joint portion between the upper mold 2 and the lower mold 2a and the inserts 13, 13a...] 4.14a
A gap 15, 15a, etc. is bored through the...
尚、上型２及び下型２ａに形成する間隙部１５．１５ａ
・・・は空気が潰這すればその構成はどちらでも良いが
、接合部位１４．１４ａ・・・の周囲全体に対して通気
孔が存在した方が好ましく、入子１３．１３ａ・・・に
よる構成が最適であるが、形状により入子１３．１３ａ
・・・が上型２及び下型２ａの製造上、困難な場合は凹
凸個所である入子１３．１３ａ・・・を金型１と一体的
と成す突起１６．１６ａ・・・とし、該突起１６．１６
ａ・・・の隅部１７．１７ａ・・・に縦孔１８．１８ａ
・・・を貫通穿設するのである。Note that the gap 15.15a formed between the upper mold 2 and the lower mold 2a
. . . may have any configuration as long as the air is collapsed, but it is preferable that there be a ventilation hole around the entire periphery of the joint portion 14.14a. The configuration is optimal, but due to the shape, nesting 13.13a
If it is difficult to manufacture the upper mold 2 and the lower mold 2a, the inserts 13.13a, which are uneven parts, are replaced with protrusions 16.16a, which are integral with the mold 1. Protrusion 16.16
Vertical hole 18.18a in corner 17.17a of a...
... is drilled through it.
尚、窯業製品Ｗの凹部１１、ｌｌａ・−弓こ対応する部
位は全て入子式にする必要はなく、任意個所を入子式と
成しても良い。Incidentally, it is not necessary that all the parts of the ceramic product W corresponding to the recesses 11, lla, and bows be telescoping type, and arbitrary parts may be telescoping type.
又、上型２及び下型２ａの裏面には壁体１９．１９ａ・
・・を一体垂設して気密室２０．２０ａ・−・を区画形
成し窯業製品Ｗの頭側と尻側に相当する第４図もこおい
で前後の壁体１９．１９ａ・・・には横孔２１．２１ａ
・・・を貫通穿設すると共に、−面の壁体１９．１９ａ
・・・にはベンチレータ２２用の接続穴２３を貫通穿設
している。Moreover, on the back surfaces of the upper mold 2 and the lower mold 2a, there are walls 19, 19a,
... are installed vertically to form airtight chambers 20, 20a..., and the front and rear walls 19, 19a..., which correspond to the head and butt sides of the ceramic product W, are also covered. Hole 21.21a
. . . and the - side wall body 19.19a.
A connection hole 23 for the ventilator 22 is bored through the holes.
上記ベンチレータ２２は空気を吸引したり、圧縮供給出
来る様に適宜装置を接続している。The ventilator 22 is connected to an appropriate device so that air can be sucked or compressed and supplied.
２４．２４ａはキャビティ２５を上型２及び下型２ａと
共に囲繞する型枠であり、該型枠２４．２４ａは上型２
に固定される碌になっており、又型枠２４．２４ａの内
壁面には横孔２１．２１ａ・・・に対応する位置に下端
部を除いて縦に溝２６．２６ａ・・・を穿設しでいる。24.24a is a formwork that surrounds the cavity 25 together with the upper mold 2 and the lower mold 2a;
The inner wall of the formwork 24.24a is vertically bored with grooves 26.26a at positions corresponding to the horizontal holes 21.21a, except for the lower end. I have set it up.
上記横孔２１．２１ａ・・・及びｉ１！２６．２６ａ・
・・により、瓦素地５ａ周縁の通気を成す様りこしてい
るが、溝２６．２６ａ・・・は特に穿設しなくとも型枠
２４．２４ａと上型２の壁体１９．１９ａ・・・との間
隙部より通気を成しても良い。Said horizontal hole 21.21a... and i1!26.26a...
The grooves 26, 26a, . . . are cut to provide ventilation around the periphery of the tile base 5a, but the grooves 26, 26a, . - Ventilation may be provided through the gap between.
又、２７は壁体１９．１９ａ・・・の接続穴２３を介し
て気密室２０．２０ａ・・・とベンチレータ２２を連通
ずる型枠２４．２４ａに穿設した接続穴、２８は気密室
２０．２０ａ・・・とベンチレータ２２を連通する下型
２ａＬ二穿設した接続穴である。Further, 27 is a connection hole bored in a formwork 24.24a that communicates the airtight chamber 20.20a... with the ventilator 22 through the connection hole 23 of the wall body 19.19a. . 20a... and the ventilator 22 are connected through the lower die 2aL.
２９．２９ａは上型２及び下型２ａの裏面の気密室２０
．２０ａ−を気密化させるＯリング、３０．３０ａ・・
・は取付は孔、３１．３２はプレス本体の合板である。29. 29a is an airtight chamber 20 on the back side of the upper mold 2 and lower mold 2a.
．． O-ring that makes 20a- airtight, 30.30a...
- is the mounting hole, 31.32 is the plywood of the press body.
次に本発明に係る窯業製品の成形方法について説明する
と、
下型２ａ上に瓦素地Ｗａをｅ置し、上型２を作動させて
瓦素地Ｗａを押圧するか、若しくは上型２及び下型２ａ
を共に作動させて瓦素地Ｗａを押圧すれば、キャビティ
２５内の凹凸個所の接合部位Ｊ４．１４ａ・・・、隅部
１７．１７ａ・・・に残留していた空気は間隙部１５．
１５ａ・・・及び縦孔１８．１８ａ・・・より、又瓦素
地Ｗａ囲周縁空気は溝２６．２６ａ・・・及び横孔２１
．２１ａ・・・より気密室２０．２０ａ・・・を介して
夫々自然排気され、従って接合部位１４．１４ａ・・・
、隅部１７．１７ａ・・・は減圧されて瓦素地Ｗａはプ
レス圧力により充分りこ充填されて凹凸個所が形成され
るのであり、特に多数の凹部１１、ｌｌａ・・・により
窯業製品Ｗの裏面にハニカム状のリブ３３が形成される
のである。Next, the method for molding a ceramic product according to the present invention will be described. The tile base Wa is placed on the lower mold 2a, and the upper mold 2 is operated to press the tile base Wa, or the upper mold 2 and the lower mold are pressed. 2a
If both are activated to press the tile base Wa, the air remaining in the joint parts J4.14a, .
15a... and the vertical holes 18, 18a..., and the surrounding air surrounding the tile base Wa flows through the grooves 26, 26a... and the horizontal holes 21.
．． 21a... are naturally exhausted through the airtight chambers 20, 20a..., and therefore the joint portions 14, 14a...
, corner portions 17, 17a... are reduced in pressure, and the tile base material Wa is sufficiently filled with the press pressure to form uneven portions. In particular, the large number of recesses 11, lla... Honeycomb-shaped ribs 33 are formed on the edges.
又、かかる成形時において、ベンチレータ２２を接綬穴
２７に接続し、ベンチレータ２２Ｌこより気密室２０．
２０ａ・・・を減圧することにより尚−層の成形効果が
得られると共に、吸引時においではカス等を同時に外部
へ排出させることも可能となり、又金型】を適宜吸引装
置（図示せず）と接続される減圧ボックス３４内に収容
し、該減圧ボックス３４内を減圧状態に吸引し、かかる
状魁にてプレス成形することにより、間隙部１５．１５
ａ・・・及び終礼】８．１８ａ・・・、横孔２】、２］
ａ・・・、溝２６．２６ａ・・・、排気口３５．３５ａ
・・・等を介して全ての空気は外部に排出されて尚−層
の成形効果を得ることを可能にしている。Also, during such molding, the ventilator 22 is connected to the ribbon hole 27, and the airtight chamber 20.
By reducing the pressure of the mold 20a..., it is possible to obtain the molding effect of the further layer, and at the same time, it is also possible to discharge dregs etc. to the outside during suction. The space 15.
a... and final bow] 8.18a..., horizontal hole 2], 2]
a..., groove 26.26a..., exhaust port 35.35a
. . . etc., all the air is discharged to the outside, making it possible to still obtain the molding effect of the layer.
又、プレス成形終了後には間隙部１５．１５ａ・・・及
び縦孔１８．１８ａ・・・よりキャビティ２５内に空気
を圧縮供給して上型２及び下型２ａより成形された瓦素
地ＩＡａは凹凸個所が欠落することなく完全な成形品を
離型するのである。After the press forming is completed, air is compressed and supplied into the cavity 25 from the gaps 15.15a and vertical holes 18.18a, and the tile base IAa formed by the upper mold 2 and the lower mold 2a is A complete molded product is released without missing any uneven parts.
又、圧縮プレスと同時り二瓦素地ｋａ全体を吸引するた
めに、１９％程度の水分を６％以下に減少することが出
来、従って焼成時に歪むことがなかったり、凸部、鋭利
部が変形（丸くなる等）することがなく乾燥工程を省略
することが８来るのである。In addition, since the entire Ni-tile base material ka is suctioned at the same time as the compression press, the moisture content of about 19% can be reduced to less than 6%, so there is no distortion during firing, and convex parts and sharp parts are not deformed. This means that the drying process can be omitted without any problems such as curling (curling, etc.).
ｒ発明の効果〕
要するに本発明は、窯業製品Ｗの裏面に相当する金型１
の成形面３．４に六角柱状の突起】６．１６ａ・・・又
は入子１３．１３ａ・・・を、該突起１６．１６ａ・・
・又は入子１３．１３ａ・・・の突出高さを夫々一定に
すると共に、各突起１６．１６ａ・−・又は入子１３．
１３ａ・・・の相互の間隔を一定ムコ設け、且つ各突起
１６．１６ａ・・・又は入子１３．１３ａ・・・と金型
１との接合部位］４．１４ａ・・・又は隅部］７．１７
ａ・・・に設ける間隙部１５．１５ａ・・・又は縦孔】
８．１８ａ−・・よりキャビティ２５内の空気を外部４
１自炊排気させてプレス成形するので、成形時には凹凸
個所の接合部位１４．１４ａ・・・又は隅部】７．１７
ａ・・・Ｌ＝おいても、残留した空気は外部ムこ自然排
気されるために流動し材い粘土、砂でも容易に凌動して
充分に充填され効果的に完全な成形をすることが出来る
ことムこより、均一なるハニカム状のリブ３３が形成さ
れ、該リブ３３にて瓦自体の強度が保持され何ら問題な
く軽量化することが出来ると共りこ、リブ３３が均一に
形成されるため、乾燥時の亀裂等の不具合を低減するこ
とが出来、又入子］３．１３ａ・・・である場合は間隙
部１５．１５ａ・・・の全域より自然排気させているの
で一層効果的であると共に、摩耗に対して容易に対応す
ることが出来る。r Effects of the invention] In short, the present invention provides a mold 1 corresponding to the back side of the ceramic product W.
6.16a... or insert 13.13a... on the molding surface 3.4 of the protrusion 16.16a...
- or the protrusion heights of the inserts 13, 13a, etc. are made constant, and the protrusions 16, 16a, etc. or the inserts 13, .
13a... with a constant interval between them, and the joint portion between each protrusion 16, 16a... or insert 13, 13a... and the mold 1] 4.14a... or corner] 7.17
Gap 15.15a... or vertical hole provided in a...
8.18a--The air inside the cavity 25 is transferred to the outside 4.
1. Since press molding is carried out with self-exhaust air, the joint parts of uneven parts 14.14a... or corners] 7.17
Even if a...L=, the remaining air is naturally exhausted from the outside, so it flows and easily overcomes even clay and sand, filling it sufficiently and effectively forming a complete mold. As a result, uniform honeycomb-shaped ribs 33 are formed, and the ribs 33 maintain the strength of the roof tile itself and can be reduced in weight without any problems, and the ribs 33 are uniformly formed. Therefore, problems such as cracks during drying can be reduced, and in the case of nesting] 3.13a..., air is naturally exhausted from the entire area of the gap 15.15a..., making it even more effective. At the same time, it is possible to easily deal with wear.
又、窯業製品Ｗの１面に相当する金型１の成形面３．４
の突起１６．１６ａ・・・又は入子１３．１３ａ・・・
の突出高さ又は分布布置を不均一にしたので、仮に中央
部の突起１６．１６ａ・・・又は入子］３．１３ａ・・
・に対し、周辺部に移行するに従って突出高さを高くす
ると共に、分布密度を大きくしてプレス成形すれば、特
に強度が要求される窯業製品Ｗの中央部の強度を軽量化
しても維持することが出来る。In addition, the molding surface 3.4 of the mold 1 corresponding to one surface of the ceramic product W
protrusion 16.16a... or nest 13.13a...
Since the protrusion height or distribution of the protrusion 16.16a... or the nest]3.13a...
・On the other hand, if the protrusion height is increased toward the periphery and the distribution density is increased and press molding is performed, the strength of the central portion of the ceramic product W, which requires particularly high strength, can be maintained even if the weight is reduced. I can do it.
又、金型の上型２及び下型２ａを共に作動させてプレス
成形したので、上記と同様なる効果を奏することが出来
ると共に、下型２ａの成形面４と瓦素ｉｔ！！ｂ′ａと
の間の空気の排気効率を向上させることが出来る。In addition, since the upper mold 2 and the lower mold 2a of the mold are operated together for press molding, the same effect as above can be achieved, and the molding surface 4 of the lower mold 2a and the tile element it! ! It is possible to improve the efficiency of exhausting air between b'a and b'a.
又、減圧ボックス３４内にてプレス成形したので、上記
における空気排気効率を向上させて尚−層の成形効果が
得られると共に、吸引時においてはカス等を同時に外部
へ排出させることも可能にする等その実用的効果甚だ大
なるものである。In addition, since the press molding is carried out inside the vacuum box 34, the air exhaust efficiency described above is improved, and a layer molding effect can be obtained, and at the same time, it is also possible to discharge dregs, etc. to the outside at the time of suction. Its practical effects are enormous.
図は本発明の一実施例を示すものにして、第１図は凹凸
個所を入子構成りこよる金型でのプレス成形前の断面図
、第２図は同上プレス成形時の断面図、第３図は凹凸個
所を突む構成による金型でのプレス成形時の断面図、第
４図は減圧ボックス内でのプレス成形時の断面図、第５
図は成形用型の表面斜視図、第６図は同上裏面斜視図、
第７図は本発明により成形された瓦である窯業製品の一
例の表面斜視図、第８図は同上裏面図、第９図及び第１
０図は同上性の実施例の裏面図、第１１図は同上背面図
、第１２図は第８図のＡ−Ａｌｊ面図、第１３図は第１
０１１１のＢ−Ｂ断面図、第１４図及び第１５図は従来
のプレス成形時の断面図である。
１金型 ２上型
３成形面 ４成形面
１３．１３ａ・・・接合部位
１５．１５ａ・・・突起
１７．１７ａ・・・縦孔
３４減圧ボツクス
２ａ下型
１２．１２ａ・・・入子
１４．１４ａ・・・間隙部
１６．１６ａ・・・隅部
２４キヤビテイ
以上
第５図
第６ス
第１１図
第１２図
第１３図
第１４図
第１５図The drawings show one embodiment of the present invention, and FIG. 1 is a cross-sectional view before press molding with a mold that nests uneven parts, FIG. 2 is a cross-sectional view during press molding of the same, and Figure 3 is a cross-sectional view during press molding in a mold with a structure that pokes through uneven areas, Figure 4 is a cross-sectional view during press molding in a vacuum box, and Figure 5 is a cross-sectional view during press molding in a vacuum box.
The figure is a front perspective view of the mold, FIG. 6 is a rear perspective view of the same as above,
Fig. 7 is a front perspective view of an example of a ceramic product, which is a tile molded according to the present invention, Fig. 8 is a back view of the same, Fig. 9 and Fig. 1
Figure 0 is a back view of the same example as above, Figure 11 is a rear view of the same as above, Figure 12 is an A-Alj plane view of Figure 8, and Figure 13 is the same as above.
The BB sectional view of 0111, FIGS. 14 and 15 are sectional views during conventional press molding. 1 Mold 2 Upper mold 3 Molding surface 4 Molding surface 13.13a...Joint part 15.15a...Protrusion 17.17a...Vertical hole 34 Decompression box 2a Lower mold 12.12a...Insert 14 .14a...Gap 16.16a...Corner 24 Cavity or more Fig. 5 Fig. 6 S Fig. 11 Fig. 12 Fig. 13 Fig. 14 Fig. 15
Claims (7)
状の入子を、該入子の突出高さを夫々一定にすると共に
、各入子の相互の間隔を一定に設け、且つ各入子と金型
との接合部位に設ける間隙部よりキャビティ内の空気を
外部に自然排気させてプレス成形したことを特徴とする
窯業製品の成形方法。(1) A hexagonal columnar insert is placed on the molding surface of the mold corresponding to the back surface of the ceramic product, the protrusion height of each insert is set constant, and the mutual spacing between the inserts is set constant, and A method for molding a ceramic product, characterized in that the air in the cavity is naturally exhausted to the outside through a gap provided at the joint portion between each insert and a mold, and press molding is performed.
状の突起を、該突起の突出高さを夫々一定にすると共に
、各突起の相互の間隔を一定に設け、且つ各突起と金型
との隅部に設ける縦孔よりキャビティ内の空気を外部に
自然排気させてプレス成形したことを特徴とする窯業製
品の成形方法。(2) Hexagonal prism-shaped protrusions are formed on the molding surface of the mold, which corresponds to the back surface of the ceramic product, so that the protrusion height of each protrusion is constant, the mutual spacing between each protrusion is constant, and each protrusion is A method for molding a ceramic product, characterized in that press molding is performed by naturally exhausting the air inside the cavity to the outside through vertical holes provided at the corner of the mold.
又は縦孔を部分的に設けをプレス成形したことを特徴と
する請求項１又は２記載の窯業製品の成形方法。(3) The method for molding a ceramic product according to claim 1 or 2, characterized in that gaps or vertical holes are partially formed in the joining parts or corners of the protrusions or inserts by press molding.
は入子の突出高さを不均一にしてプレス成形したことを
特徴とする請求項１、２又は３記載の窯業製品の成形方
法。(4) The molding of the ceramic product according to claim 1, 2 or 3, characterized in that the press molding is performed with uneven protrusion heights of the protrusions or inserts on the molding surface of the mold corresponding to the back surface of the ceramic product. Method.
は入子の分布密度を不均一にしてプレス成形したことを
特徴とする請求項１、２又は３記載の窯業製品の成形方
法。(5) The method for molding a ceramic product according to claim 1, 2 or 3, characterized in that the press molding is performed with uneven distribution density of the protrusions or inserts on the molding surface of the mold corresponding to the back surface of the ceramic product. .
したことを特徴とする請求項１、２、３、４又は５記載
の窯業製品の成形方法。(6) The method for molding a ceramic product according to claim 1, 2, 3, 4 or 5, wherein the press molding is carried out by operating both the upper mold and the lower mold.
する請求項１、２、３、４、５又は６記載の窯業製品の
成形方法。(7) The method for molding a ceramic product according to claim 1, 2, 3, 4, 5 or 6, characterized in that the press molding is carried out in a vacuum box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22173590A JPH04101809A (en) | 1990-08-22 | 1990-08-22 | Forming method of ceramics product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22173590A JPH04101809A (en) | 1990-08-22 | 1990-08-22 | Forming method of ceramics product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04101809A true JPH04101809A (en) | 1992-04-03 |
Family
ID=16771424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22173590A Pending JPH04101809A (en) | 1990-08-22 | 1990-08-22 | Forming method of ceramics product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04101809A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6170384B1 (en) | 1998-01-31 | 2001-01-09 | Festo Ag & Co. | Fluid power rotary drive device |
| JP2002210719A (en) * | 2001-01-16 | 2002-07-30 | Niimi Tekko:Kk | Mold and pressing machine |
| JP2010018970A (en) * | 2008-07-09 | 2010-01-28 | Miyazono Seisakusho:Kk | Tile and its manufacturing method |
-
1990
- 1990-08-22 JP JP22173590A patent/JPH04101809A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6170384B1 (en) | 1998-01-31 | 2001-01-09 | Festo Ag & Co. | Fluid power rotary drive device |
| JP2002210719A (en) * | 2001-01-16 | 2002-07-30 | Niimi Tekko:Kk | Mold and pressing machine |
| JP2010018970A (en) * | 2008-07-09 | 2010-01-28 | Miyazono Seisakusho:Kk | Tile and its manufacturing method |
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