JPH0880517A - Rear mold to form rear footing of tile - Google Patents
Rear mold to form rear footing of tileInfo
- Publication number
- JPH0880517A JPH0880517A JP25598294A JP25598294A JPH0880517A JP H0880517 A JPH0880517 A JP H0880517A JP 25598294 A JP25598294 A JP 25598294A JP 25598294 A JP25598294 A JP 25598294A JP H0880517 A JPH0880517 A JP H0880517A
- Authority
- JP
- Japan
- Prior art keywords
- tile
- rubber
- mold
- uniform
- forming
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- 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、タイル裏面に裏足を形
成するための凹凸面を備えたラバーを有する裏型に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a back mold having a rubber having an uneven surface for forming back feet on the back surface of a tile.
【０００２】[0002]
【従来の技術】タイルの成形は、タイル裏面を形成する
裏型と枠型とで形成される成形空間へ粉枡等によって坏
土を充填し、タイル表面を形成する表型を下降させて前
記坏土を加圧することでタイル成形体を得ている。そし
て、加圧されたタイル成形体を取り出し、必要に応じて
素焼きをし、その後、施釉、焼成等の工程を経て製品と
してのタイルを製造している。2. Description of the Related Art Tile molding is performed by filling a molding space formed by a back mold forming a back surface of a tile and a frame mold with kneaded clay, and lowering a front mold forming a tile surface. A tile molded body is obtained by pressing the kneaded clay. Then, the pressed tile molded body is taken out, unglazed if necessary, and then, a tile as a product is manufactured through steps such as glazing and firing.
【０００３】而して、タイルは陶磁器原料を焼成したも
のであるため、焼成に伴う膨張収縮が大きく、寸法精度
の管理は極めて難しい。寸法精度に最も影響を与えるの
は、原料の充填密度である。また原料の充填密度の不均
一は、原料の不均一な充填量によって引き起こされる。Since the tile is made by firing a ceramic raw material, it greatly expands and shrinks with firing, and it is extremely difficult to control the dimensional accuracy. It is the packing density of the raw material that most affects the dimensional accuracy. The non-uniform packing density of the raw material is caused by the non-uniform filling amount of the raw material.
【０００４】例えば、二層構造のタイルを製造する場合
や表面が波模様の凹凸を有するタイルを製造する場合等
は、粉の流動性や表面の部分的な凹凸差が原因で坏土の
充填量が不均一になり易い。このような坏土の不均一な
充填量の下で加圧成形した後のタイル成形体は充填密度
が不均一となり、焼成時の熱膨張収縮率が充填密度によ
って異なることから、製品としてのタイルの寸法精度が
悪くなるという欠点があった。For example, when a tile having a two-layer structure is manufactured or when a tile having a corrugated surface is manufactured, the kneaded material is filled due to the fluidity of the powder and the partial unevenness of the surface. The amount tends to be uneven. The tile density after pressure molding under such an uneven filling amount of the kneaded clay becomes uneven, and the coefficient of thermal expansion and contraction during firing differs depending on the packing density. However, there was a drawback that the dimensional accuracy of was worse.
【０００５】このような坏土の不均一な充填量に起因す
るタイルの寸法精度の悪影響を解決する手段として、図
４に示すような特開昭６２−２０１２０２号公報で開示
された先願技術がある。この先願技術は、タイルの裏面
を形成するための裏型１の上面側に、裏足形成用の凹凸
２ａ及び２ｂを有するラバー３を配設している。このラ
バー３は、その裏面側に密閉された静水圧室４を有して
いる。同図において、５は枠型、６は表型である。As a means for solving the adverse effect of the dimensional accuracy of tiles due to such uneven filling amount of kneaded clay, the prior application technique disclosed in Japanese Patent Laid-Open No. 62-201202 as shown in FIG. There is. In this prior-art technique, a rubber 3 having concavities and convexities 2a and 2b for forming a back foot is arranged on the upper surface side of a back mold 1 for forming the back surface of a tile. The rubber 3 has a closed hydrostatic chamber 4 on its back side. In the figure, 5 is a frame type and 6 is a table type.
【０００６】この先願技術では、例えば、裏型１と枠型
５とにより形成された成形空間７へ充填した坏土８の充
填量が、図４に示すように不均一である場合に、表型６
を下降させて坏土８を加圧成形すると、前記静水圧室４
の流体９に均一な静水圧が発生し、坏土８の全体に均一
な加圧力が作用するようになる。そのため、このように
して得られた図５に示すタイル成形体１０の充填密度は
全体に亘って均一となり、タイルの熱膨張収縮による縦
横の大きさの寸法精度はよくなる。In this prior art, for example, when the amount of the kneaded material 8 filled in the molding space 7 formed by the back mold 1 and the frame mold 5 is uneven as shown in FIG. Type 6
When the kneaded clay 8 is pressure-formed by lowering the
A uniform hydrostatic pressure is generated in the fluid 9 and the uniform pressing force acts on the entire kneaded clay 8. Therefore, the packing density of the tile molded body 10 shown in FIG. 5 thus obtained is uniform throughout, and the dimensional accuracy of the vertical and horizontal sizes due to the thermal expansion and contraction of the tile is improved.
【０００７】[0007]
【発明が解決しようとする課題】このように、前記先願
の技術では、不均一な量の坏土充填があった場合でも、
静水圧によってタイルの全体に亘って均一な充填密度の
タイル成形体を得ることができる。然しながら、ラバー
３の背面側が静水圧室４によって完全にフリーであるた
め、タイルの厚み方向ではその寸法が不均一となり、裏
足１１の高さが変化してタイル全体としてはタイル裏面
が斜めに変形した形態を有するようになるという問題が
あった。。つまり、前記先願技術では、坏土８の不均一
な充填量をタイルの厚みを変化させて厚み寸法を犠牲に
することで吸収し、充填密度を均一にしている。As described above, in the technique of the above-mentioned prior application, even when there is a non-uniform amount of kneaded material filling,
The hydrostatic pressure makes it possible to obtain a tile molded body having a uniform packing density over the entire tile. However, since the back surface side of the rubber 3 is completely free by the hydrostatic chamber 4, the dimensions become uneven in the thickness direction of the tile, the height of the back legs 11 changes, and the back surface of the tile is slanted as a whole. There is a problem in that it has a deformed shape. . That is, in the above-mentioned prior art, the uneven filling amount of the kneaded clay 8 is absorbed by changing the thickness of the tile to sacrifice the thickness dimension, and the filling density is made uniform.
【０００８】従って、図５に示す厚みの異なるタイルの
貼着作業は、均一厚みに塗布されたモルタルへ変形した
タイル裏面を圧着して行われるので、同一タイルにおい
て、モルタルが不足する部分と余る部分とが発生し、モ
ルタルの補充等をしながら行わなければならないので、
非常に難しい作業となる欠点があった。また変形した部
分によってタイルの埋め込み深さが異なったり、空気溜
まりを形成すること等があり、タイルの接着強度にもバ
ラツキが発生するという欠点があった。Therefore, since the work of attaching the tiles having different thicknesses shown in FIG. 5 is performed by pressing the back surface of the tile, which has been transformed into the mortar coated with a uniform thickness, to the mortar in the same tile, the remaining portion is insufficient. Part and occur, and it has to be done while supplementing mortar, etc.
It had the drawback of being a very difficult task. In addition, the embedded depth of the tile may differ depending on the deformed portion, air pockets may be formed, and the like, and thus there is a drawback that the adhesive strength of the tile also varies.
【０００９】[0009]
【課題を解決するための手段】本発明は従来の前記課題
に鑑みてこれを改良除去したものであって、坏土の充填
量が不均一であっても充填密度を均一化でき、且つタイ
ル厚みの変形もないタイルを製造することのできる裏型
を提供せんとするものである。SUMMARY OF THE INVENTION The present invention has been made by improving the above-mentioned problems in view of the above-mentioned problems, and can make the packing density uniform even if the amount of the kneaded clay is uneven, and The purpose of the present invention is to provide a back mold capable of producing a tile having no thickness variation.
【００１０】而して、前記課題を解決するために本発明
が採用した手段は、タイル裏面に裏足を形成するための
裏型において、裏型の表面側に裏足形成用の凹凸面を備
えたラバーを配設し、該ラバーの裏面側に密閉された静
水圧室を形成し、該静水圧室内にタイル裏足を形成する
部分に対応するラバーを支承する同一高さの支持脚を配
設したことを特徴とするタイル裏足成形用の裏型であ
る。Thus, the means adopted by the present invention to solve the above-mentioned problem is that in the back mold for forming the back foot on the back surface of the tile, an uneven surface for forming the back foot is provided on the surface side of the back mold. A rubber provided is disposed, a closed hydrostatic chamber is formed on the back side of the rubber, and a support leg of the same height that supports the rubber corresponding to the portion forming the tile backs is provided in the hydrostatic chamber. It is a back mold for molding the back of a tile, which is characterized by being arranged.
【００１１】[0011]
【作用】本発明にあっては、ラバーの裏面側に設けられ
た静水圧室に、裏足を形成する部分のラバーを支承する
同一高さの支持脚を配設している。これにより、前記支
持脚の部分、つまり、タイルの裏足の部分のタイル表面
からの寸法が均一化される。またその余の裏足間の凹部
については、静水圧室の流体に作用する均一な静水圧に
よって不均一な坏土の充填量が均一化され、充填密度の
均一化が得られる。なお、充填量の不均一は、タイル裏
足間凹部の深さの不均一となるが、これはタイルの本質
的な機能に影響を与えるものではない。それ故、タイル
の寸法精度に優れ、またタイルの厚み方向の変形もな
く、接着作業が容易で且つ接着強度も均一なタイルを製
造することが可能である。According to the present invention, the hydrostatic chamber provided on the back side of the rubber is provided with the support legs of the same height for supporting the rubber of the part forming the back foot. As a result, the dimension of the support leg portion, that is, the portion of the back foot of the tile from the tile surface is made uniform. Further, in the remaining recesses between the back legs, the uniform hydrostatic pressure acting on the fluid in the hydrostatic chamber makes the nonuniform amount of the kneaded material uniform, and the uniform packing density. The non-uniform filling amount results in non-uniform depths of the recesses between the back legs of the tile, but this does not affect the essential function of the tile. Therefore, it is possible to manufacture a tile which is excellent in dimensional accuracy of the tile, has no deformation in the thickness direction of the tile, is easy in the bonding work, and has a uniform bonding strength.
【００１２】[0012]
【実施例】以下に、本発明の構成を図面に示す実施例に
基づいて説明すると次の通りである。なお、従来の場合
と同一符号は同一部材である。図１乃至図３は本発明の
一実施例に係るものであり、図１は成形型１２の全体を
示す縦断面図、図２は支持脚１３を示す部分断面斜視
図、図３はタイル成形体２５の縦断面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the embodiments shown in the drawings. The same reference numerals as in the conventional case are the same members. 1 to 3 relate to an embodiment of the present invention. FIG. 1 is a vertical sectional view showing the entire molding die 12, FIG. 2 is a partial sectional perspective view showing a support leg 13, and FIG. It is a longitudinal cross-sectional view of the body 25.
【００１３】同図に示す如く、この実施例にあっては、
裏型１４の上面側に、凹部１５が穿設され、該凹部１５
の上面側にラバー１６が配設されている。ラバー１６
は、凹部１５の側面側にボルト１７で固定されたブロッ
ク１８を介して水密に取り付けられている。これによ
り、ラバー１６の裏面側に流体１９を充填してなる静水
圧室２０が形成される。尚、前記ラバー１６の上面側に
は、図３に示すタイル裏足２１を形成するための凹部２
２と、裏足凹部２３を形成するための凸部２４とが形成
されている。As shown in the figure, in this embodiment,
A concave portion 15 is formed on the upper surface side of the back mold 14, and the concave portion 15 is formed.
The rubber 16 is disposed on the upper surface side of the. Rubber 16
Is watertightly attached to the side surface of the recess 15 via a block 18 fixed by a bolt 17. As a result, the hydrostatic chamber 20 formed by filling the back surface of the rubber 16 with the fluid 19 is formed. In addition, on the upper surface side of the rubber 16, a concave portion 2 for forming the tile back 21 shown in FIG. 3 is formed.
2 and a convex portion 24 for forming the back foot concave portion 23 are formed.
【００１４】また静水圧室２０におけるラバー１６の裏
足形成用の凹部２２に対応する部分には、同一高さの支
持脚１３が配設され、図示しないボルト等によって裏型
１４に固定されている。一方、裏型１４の凹部１５の底
面には、前記支持脚１３と直交する方向に、少なくとも
一本の溝２６が穿設されている。これにより、静水圧２
０内の流体１９は、支持脚１３によって区画された各領
域を自由に且つ円滑に流動することが可能である。A support leg 13 having the same height is provided in a portion of the hydrostatic chamber 20 corresponding to the recess 22 for forming the back foot of the rubber 16, and is fixed to the back mold 14 by a bolt or the like not shown. There is. On the other hand, at least one groove 26 is formed in the bottom surface of the recess 15 of the back mold 14 in the direction orthogonal to the support leg 13. This results in a hydrostatic pressure of 2
The fluid 19 in 0 can freely and smoothly flow in each area defined by the support legs 13.
【００１５】また静水圧室２０は、溝２６、連通路２７
及びチエックバルブ２８等を介して圧力流体源へ接続さ
れている。The hydrostatic chamber 20 includes a groove 26 and a communication passage 27.
And a pressure fluid source via a check valve 28 and the like.
【００１６】次に、上述の如く構成された成形型１２の
動作態様を説明する。例えば、図１に示すように、坏土
８の充填量が不均一であったと仮定する。このような状
態において、表型６を下降させて坏土８を加圧成形する
と、支持脚１３によって支持されたラバー１６の部分
は、その高さが一定に維持される。そのため、該部分に
よって形成されるタイル裏足２１は、タイル表面から一
定の寸法を有し、タイル裏面の全体が均一な厚みの平滑
面となる。Next, an operation mode of the molding die 12 configured as described above will be described. For example, as shown in FIG. 1, it is assumed that the filling amount of the kneaded clay 8 is nonuniform. In such a state, when the front mold 6 is lowered and the kneaded clay 8 is pressure-molded, the height of the portion of the rubber 16 supported by the support legs 13 is maintained constant. Therefore, the tile back 21 formed by the portion has a constant dimension from the tile front surface, and the entire tile back surface is a smooth surface having a uniform thickness.
【００１７】一方、支持脚１３によって支持されないラ
バー１６の部分には、静水圧室２０の流体１９によって
均一な静水圧が作用する。そのため、沢山充填された坏
土の部分では、裏足凹部２３の深さ寸法は小さくなり、
少なく充填された坏土の部分では裏足凹部２４の深さ寸
法は大きくなる。これによって、加圧されたタイル成形
体２５は、その全体で充填密度の均一化が図れる。この
場合に、静水圧室２０の溝２６は、流体１９の流動を円
滑になし、充填密度の均一化が容易に得られるように作
用する。On the other hand, a uniform hydrostatic pressure acts on the portion of the rubber 16 not supported by the support legs 13 by the fluid 19 in the hydrostatic chamber 20. Therefore, in the portion of the kneaded clay filled with a lot, the depth dimension of the back foot recess 23 becomes small,
In the portion of the kneaded material filled with a small amount, the depth dimension of the back foot recess 24 becomes large. As a result, the pressure density of the tile molded body 25 can be made uniform throughout. In this case, the groove 26 of the hydrostatic chamber 20 acts so that the fluid 19 flows smoothly and the packing density is easily made uniform.
【００１８】このようにして製造されたタイル成形体２
５であれば、タイルの裏足部分の厚みが一定で且つ平滑
であり、タイルの全体に亘って充填密度が均一化される
ので、寸法精度に優れ且つ接着作業が容易で接着強度も
均一なものが得られる。The tile molded body 2 manufactured in this way
In the case of 5, the back foot portion of the tile has a constant thickness and is smooth, and the packing density is uniform over the entire tile, so that the dimensional accuracy is excellent, the bonding work is easy, and the bonding strength is uniform. Things are obtained.
【００１９】ところで、本発明は上述した実施例に限定
されるものではなく、例えば、ラバー１６を裏型１４へ
固定する方法や静水圧室２０に静水圧を発生させる手段
等は適宜の変更が可能である。By the way, the present invention is not limited to the above-mentioned embodiment, and for example, the method for fixing the rubber 16 to the back mold 14 and the means for generating the hydrostatic pressure in the hydrostatic chamber 20 may be modified appropriately. It is possible.
【００２０】[0020]
【発明の効果】以上説明したように本発明にあっては、
裏型の表面側に裏足形成用の凹凸面を備えたラバーを配
設し、該ラバーの裏面側に密閉された静水圧室を形成
し、該静水圧室内にタイル裏足を形成する部分に対応す
るラバーを支承する同一高さの支持脚を配設したから、
この支持脚の部分によって成形されるタイル裏足は、タ
イル表面からの寸法が均一化され、タイル裏面の全体が
平滑面となる。As described above, according to the present invention,
A portion in which a rubber having an uneven surface for forming a foot is arranged on the front side of the back mold, a closed hydrostatic chamber is formed on the back side of the rubber, and a tile foot is formed in the hydrostatic chamber. Since the supporting legs of the same height that support the rubber corresponding to are arranged,
The tile back foot formed by the support leg portions has a uniform dimension from the tile front surface, and the entire back surface of the tile becomes a smooth surface.
【００２１】またその余の裏足間の凹部については、静
水圧室の流体に作用する均一な静水圧によって充填密度
は均一化され、凹部の深さは坏土の充填量によって不均
一となる。なお、この凹部の深さのバラツキは、接着強
度や寸法精度等のタイルの本質的な機能に影響を与える
ものではない。それ故、本発明にあっては、タイルの寸
法精度に優れ、またタイルの厚み方向の変形もなく、接
着作業が容易で且つ接着強度も均一なタイルを製造する
ことが可能である。In the recesses between the other soles, the filling density is made uniform by the uniform hydrostatic pressure acting on the fluid in the hydrostatic chamber, and the depths of the recesses become non-uniform depending on the filling amount of the kneaded clay. . The variation in the depth of the recess does not affect the essential functions of the tile such as the adhesive strength and the dimensional accuracy. Therefore, according to the present invention, it is possible to manufacture a tile which has excellent tile dimensional accuracy, is not deformed in the thickness direction of the tile, is easy to bond, and has uniform adhesive strength.
【図１】本発明の一実施例に係る成形型の全体を示す縦
断面図である。FIG. 1 is a vertical cross-sectional view showing an entire forming die according to an embodiment of the present invention.
【図２】本発明の一実施例に係る裏型の支持脚を示す部
分拡大斜視図である。FIG. 2 is a partially enlarged perspective view showing a back type support leg according to an embodiment of the present invention.
【図３】本発明の一実施例に係るタイル成形体を示す縦
断面図である。FIG. 3 is a vertical cross-sectional view showing a tile molded body according to an embodiment of the present invention.
【図４】従来の先願技術に係る成形型の全体を示す縦断
面図である。FIG. 4 is a vertical cross-sectional view showing an entire forming die according to a conventional prior art.
【図５】従来技術によって成形されたタイル成形体を示
す縦断面図である。FIG. 5 is a vertical cross-sectional view showing a tile molded body molded by a conventional technique.
５…枠型 ６…表型 ７…成形空間 ８…坏土 １２…成形型 １３…支持脚 １４…裏型 １５…静水圧形成
用凹部 １６…ラバー １９…流体 ２０…静水圧室 ２１…タイル裏足 ２２…タイル裏足形成用凹部 ２２…裏足凹部 ２３…裏足凹部形成用の凸部 ２５…タイル成形
体5 ... Frame mold 6 ... Front mold 7 ... Molding space 8 ... Kneaded clay 12 ... Molding mold 13 ... Support leg 14 ... Back mold 15 ... Hydrostatic pressure forming recess 16 ... Rubber 19 ... Fluid 20 ... Hydrostatic pressure chamber 21 ... Tile back Foot 22 ... Tile sole foot forming concave portion 22 ... Back foot concave portion 23 ... Back foot concave portion forming convex portion 25 ... Tile molded body
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田村 茂俊 愛知県常滑市奥条６−110 株式会社ゴト ーピニオン内 (72)発明者 後藤 彰一郎 愛知県常滑市奥条６−110 株式会社ゴト ーピニオン内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigenori Tamura 6-110 Okujo Co., Ltd., Tokoname City, Aichi Prefecture (72) Inventor Shoichiro Goto 6-110 Okujo, Tokoname City, Aichi Prefecture Goto Pinion Co., Ltd.
Claims (1)
おいて、裏型の表面側に裏足形成用の凹凸面を備えたラ
バーを配設し、該ラバーの裏面側に密閉された静水圧室
を形成し、該静水圧室内にタイル裏足を形成する部分に
対応するラバーを支承する同一高さの支持脚を配設した
ことを特徴とするタイル裏足成形用の裏型。1. In a back mold for forming a back foot on the back surface of a tile, a rubber provided with an uneven surface for forming the back foot is arranged on the front surface side of the back mold, and the back side of the rubber is sealed. A back mold for molding a backing of a tile, characterized in that a hydrostatic chamber is formed, and support legs of the same height for supporting a rubber corresponding to a portion forming the backing of the tile are arranged in the hydrostatic chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25598294A JPH0880517A (en) | 1994-09-12 | 1994-09-12 | Rear mold to form rear footing of tile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25598294A JPH0880517A (en) | 1994-09-12 | 1994-09-12 | Rear mold to form rear footing of tile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0880517A true JPH0880517A (en) | 1996-03-26 |
Family
ID=17286270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25598294A Pending JPH0880517A (en) | 1994-09-12 | 1994-09-12 | Rear mold to form rear footing of tile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0880517A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITRE20130018A1 (en) * | 2013-03-13 | 2014-09-14 | Ferrari Carlo Societa Per Azioni Off | PERFECT ISOSTATIC MOLD |
| WO2020135120A1 (en) * | 2018-12-26 | 2020-07-02 | 陈锐 | Ceramic tile die, expanded ceramic tile die support, and ceramic tile made out of die |
-
1994
- 1994-09-12 JP JP25598294A patent/JPH0880517A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITRE20130018A1 (en) * | 2013-03-13 | 2014-09-14 | Ferrari Carlo Societa Per Azioni Off | PERFECT ISOSTATIC MOLD |
| WO2020135120A1 (en) * | 2018-12-26 | 2020-07-02 | 陈锐 | Ceramic tile die, expanded ceramic tile die support, and ceramic tile made out of die |
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