JP2729029B2 - Tile mold and method of manufacturing the mold - Google Patents

Tile mold and method of manufacturing the mold

Info

Publication number
JP2729029B2
JP2729029B2 JP6245726A JP24572694A JP2729029B2 JP 2729029 B2 JP2729029 B2 JP 2729029B2 JP 6245726 A JP6245726 A JP 6245726A JP 24572694 A JP24572694 A JP 24572694A JP 2729029 B2 JP2729029 B2 JP 2729029B2
Authority
JP
Japan
Prior art keywords
mold
tile
filling
grooves
convex portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP6245726A
Other languages
Japanese (ja)
Other versions
JPH08108418A (en
Inventor
秋夫 柴田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHINKO YOGYO KK
Original Assignee
SHINKO YOGYO KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHINKO YOGYO KK filed Critical SHINKO YOGYO KK
Priority to JP6245726A priority Critical patent/JP2729029B2/en
Publication of JPH08108418A publication Critical patent/JPH08108418A/en
Application granted granted Critical
Publication of JP2729029B2 publication Critical patent/JP2729029B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

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  • 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)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は粉体からなるタイル原料
を金型に充填して圧縮成形するタイルの乾式成形におけ
るタイル成形型及びその成形型の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tile mold in dry molding of a tile in which a tile material made of powder is filled in a mold and compression-molded, and a method of manufacturing the mold.

【０００２】[0002]

【従来の技術】従来、粉体からなるタイル原料を金型に
充填してタイルを圧縮成形するタイルの乾式成形におい
て、タイル裏面に接着効果を高める裏足を形成するため
に、図１４に示すように、表面に厚肉の凸状部１０１と
凹状部１０２を形成したウレタンゴムからなる裏足形成
板１０３をタイル裏型１０４の無穴状の表面に設けたも
の（第１の従来の技術）や、図１５に示すように、タイ
ル裏型１０５の表面１０５にウレタンゴムからなる裏足
形成用ブロック１０６を、その上部１０６ａを突出させ
て埋設したもの（第２の従来の技術）がある。2. Description of the Related Art Conventionally, in dry molding of a tile, in which a tile material made of powder is filled in a mold and compression-molded tile is formed, as shown in FIG. As described above, the sole foot forming plate 103 made of urethane rubber having the thick convex portions 101 and concave portions 102 formed on the surface is provided on the non-hole surface of the tile back mold 104 (the first conventional technique). 15, and a back foot forming block 106 made of urethane rubber is buried on the surface 105 of the tile back mold 105 with its upper part 106a protruding (second conventional technique), as shown in FIG. .

【０００３】[0003]

【発明が解決しようとする課題】タイルの乾式成形にお
いて、タイル原料を成形型内に充填するときに、タイル
原料の粉体の特性や充填装置の構造によって均一な充填
密度を得ることはかなり難しく、密度むらのある状態で
加圧した成形体を焼成すると、焼成収縮によってそのタ
イルが変形し、満足し得る正確な形状を得ることが困難
になる。In the dry molding of tiles, it is very difficult to obtain a uniform packing density due to the characteristics of the powder of the tile raw material and the structure of the filling device when filling the tile raw material into the mold. If the pressed compact is fired in a state of uneven density, the tile is deformed due to shrinkage during firing, making it difficult to obtain a satisfactory and accurate shape.

【０００４】特に、タイルの裏足を形成するために、裏
型に凹凸部を設けたものにおいては、加圧成形するとき
に、その凸部の部分が凹部の場合よりも圧縮比が大きく
なり、成形密度のむらが発生する。[0004] In particular, in the case where the back mold is provided with an uneven portion in order to form the back foot of the tile, the compression ratio becomes larger at the time of pressure molding than when the convex portion is a concave portion. In addition, uneven molding density occurs.

【０００５】上記従来の成形型のように、厚肉の凹凸状
型面１０１，１０２や裏足形成用ブロック１０６により
裏足を形成するものにおいては、上記のような原料の充
填密度のむらを、弾性によりわずかに吸収する効力はあ
るが、満足できる程には吸収することはできない。In the case where the back feet are formed by the thick uneven surface 101, 102 or the back foot forming block 106 as in the conventional molding die described above, the unevenness of the packing density of the raw material as described above is reduced. Although it has a slight absorption effect due to elasticity, it cannot be absorbed satisfactorily.

【０００６】近年、壁面に施工されたタイルの剥離事故
が問題となり、タイルの裏足である凹凸形状、すなわち
一般的には筋状断面の溝の深さはタイルの剥離防止対策
上から一段と深くなってきている。このような深い溝の
裏足を上記従来の成形型で成形すると、その成形密度の
むらが一層大きくなり、このために焼成後のタイル形状
が悪くなる傾向があった。In recent years, there has been a problem of the peeling of a tile applied to a wall surface becoming a problem, and the uneven shape as a sole of the tile, that is, generally, the depth of a groove having a streak-shaped cross section is further deepened from the viewpoint of preventing tile peeling. It has become to. When the back foot of such a deep groove is molded by the above-mentioned conventional molding die, the unevenness of the molding density is further increased, and the tile shape after firing tends to be deteriorated.

【０００７】そこで本発明は、上記従来の問題点を解決
し、深い裏足筋のタイルで、焼成収縮によって変形する
ことの少ないタイルを成形することができるタイルの成
形型及びその成形型を容易に製造できる製造方法を提供
することを目的とするものである。Accordingly, the present invention solves the above-mentioned conventional problems, and provides a mold for a tile capable of forming a tile with a deep sole muscle which is hardly deformed by firing shrinkage, and a mold for the tile. It is an object of the present invention to provide a manufacturing method that can be manufactured at a low cost.

【０００８】[0008]

【課題を解決するための手段】本発明は上記の課題を解
決するために、請求項１記載の発明は、金属製の裏型
（２）の表面に複数の溝（２ａ）を形成するとともに該
裏型（２）には上記各溝（２ａ）に部分的に開口する連
接穴（２ｄ）を形成し、裏型（２）の表面には、上記各
溝（２ａ）の部分が凸状で他の部分が凹状の弾性材から
なる裏足成形板（３）を水密的に固着し、上記各溝（２
ａ）で形成される全ての空洞部（１０）を上記連接穴
（２ｄ）を通じて相互に連通し、該空洞部（１０）と連
接穴（２ｄ）に液体を密封状態で充填したことを特徴と
するタイルの成形型である。According to the present invention, in order to solve the above-mentioned problems, the invention according to claim 1 comprises forming a plurality of grooves (2a) on the surface of a metal back mold (2). The back mold (2) is formed with a connecting hole (2d) partially opening in each of the grooves (2a), and the surface of the back mold (2) is formed with a convex portion of each of the grooves (2a). Then, the back foot forming plate (3), the other part of which is made of a concave elastic material, is fixed in a watertight manner, and the grooves (2)
All the cavities (10) formed in a) are communicated with each other through the connecting hole (2d), and the cavity (10) and the connecting hole (2d) are filled with a liquid in a sealed state. This is a mold for forming tiles.

【０００９】請求項２記載の発明は、裏足成形板（３）
における凸部（３ａ）が、その裏側にくぼみ（３ｃ）を
設けて薄肉に形成したことを特徴とするタイルの成形型
である。The invention according to claim 2 provides a back foot forming plate (3).
The protrusion (3a) is provided with a depression (3c) on the back side thereof and is formed to have a thin wall.

【００１０】請求項３記載の発明は、金属製の裏型
（２）の表面に複数の溝（２ａ）を形成するとともに該
裏型（２）には上記各溝（２ａ）に部分的に開口する連
接穴（２ｄ）を形成し、上記各溝（２ａ）には詰物（２
０）を装着しておき、裏型（２）の表面を、弾性材によ
り、上記詰物（２０）の上部が凸状になるようにコーデ
ィングした後、上記の詰物（２０）を溶解排出して上記
溝部（２ａ）を空洞化させることを特徴とするタイルの
成形型の製造方法である。According to a third aspect of the present invention, a plurality of grooves (2a) are formed on the surface of a metal back mold (2), and the back mold (2) is partially formed in each of the grooves (2a). forming an opening for connecting holes (2d), above each groove (2a) packed product (2
0) is mounted, and the surface of the back mold (2) is coded with an elastic material so that the upper part of the filling (20) becomes convex, and then the filling (20) is dissolved and discharged. A method of manufacturing a mold for a tile, comprising hollowing the groove (2a).

【００１１】請求項４記載の発明は、請求項３記載の詰
物（２０）の上部が溝（２ａ）から突出していることを
特徴とするタイルの成形型の製造方法である。According to a fourth aspect of the present invention, there is provided a method for manufacturing a mold for tiles, characterized in that an upper portion of the filling (20) according to the third aspect projects from the groove (2a).

【００１２】[0012]

【作用】請求項１記載の発明においては、裏足成形板
（３）上にタイル原料（９）を充填し、上型（８）でタ
イル原料（９）を加圧すると、タイル原料（９）内に作
用した圧力が裏足成形板（３）における凸部（３ａ）と
凹部（３ｂ）に、その表面側から作用しつつタイル原料
（９）は所定の厚みに圧縮成形される。According to the first aspect of the present invention, when the tile material (9) is filled in the back foot forming plate (3) and the tile material (9) is pressed by the upper mold (8), the tile material (9) is formed. The tile raw material (9) is compression-molded to a predetermined thickness while the pressure acting in ()) acts on the convex portion (3a) and the concave portion (3b) of the sole foot forming plate (3) from the surface side.

【００１３】このとき、同じ凸部（３ａ）であっても原
料充填密度の高いところ、例えば図７のＡ部での凸部
（３ａ1 ）では成形体内に高い圧力が発生して該凸部
（３ａ1）が強く押し下げられる。一方原料充填密度の
低いところ、例えば図７のＢ部での凸部（３ａ2 ）では
成形体内に発生する圧力は低く、その部分の凸部（３ａ
2）は弱くしか押し下げられない。At this time, even if the same convex portion (3a) has a high raw material filling density, for example, the convex portion (3a 1 ) in the portion A in FIG. (3a 1 ) is strongly pushed down. On the other hand, in a place where the raw material packing density is low, for example, in the convex portion (3a 2 ) at the portion B in FIG. 7, the pressure generated in the molded body is low, and the convex portion (3a
2 ) can only be pushed down weakly.

【００１４】したがって、上記のように高い圧力が発生
した部分における凸部（３ａ1 ）における空洞部（１０
1 ）内の液体（１２ａ）が押し下げられ、その押し出さ
れた液体は、連接穴（２ｄ）を通じて低い圧力が発生し
た部分における凸部（３ａ2）の空洞部（１０2 ）に送
りこまれてその液体（１２ａ）が上昇し、該凸部（３
ａ）の裏足成形板（３）を押し上げて下部から反作用的
に成形板を圧縮する。Therefore, the cavity (10a) in the projection (3a 1 ) in the portion where the high pressure is generated as described above.
The liquid (12a) in 1 ) is depressed, and the extruded liquid is sent to the cavity (10 2 ) of the projection (3a 2 ) in the portion where the low pressure is generated through the connection hole (2d). The liquid (12a) rises and the convex portion (3
The back foot forming plate (3) of (a) is pushed up to react and compress the forming plate from below.

【００１５】これにより、各凸部分（３ａ1 ）（３
ａ2 ）における原料は均一に圧縮され、ほぼ均一な密度
の成形体を得ることが出来る。また、連接穴（２ｄ）
は、溝（２ａ）の全長に亘って裏型（２）の表裏方向に
貫通して形成するのではなくて、溝（２ａ）の一部分に
形成したので、全長に亘って形成するものに比べて裏型
（２）の強度低下を少なくすることができる。また、連
接穴（２ｄ）を裏型（２）の側端から遠い位置に設け、
溝（２ａ）を裏型（２）の側端に可及的に近ずけること
ができるので、成形体の全範囲における密度の均一化を
より高めることができる。更に、連接穴（２ｄ）の穴明
け加工も少なくなり、作業の容易化によるコスト低減を
図ることができる。Thus, each convex portion (3a 1 ) (3
The raw material in a 2 ) is uniformly compressed, and a molded article having a substantially uniform density can be obtained. In addition, connecting hole (2d)
Is formed in a part of the groove (2a) rather than penetrating in the front and back directions of the back mold (2) over the entire length of the groove (2a). Thus, a decrease in the strength of the back mold (2) can be reduced. Also, the connecting hole (2d) is provided at a position far from the side end of the back mold (2),
Since the groove (2a) can be made as close as possible to the side end of the back mold (2), the uniformity of the density over the entire range of the molded body can be further improved. Further, drilling of the connection hole (2d) is reduced, and the cost can be reduced by facilitating the work.

【００１６】請求項２記載の発明においては、裏足成形
板（３）における凸部（３ａ）が、その裏側にくぼみ
（３ｃ）を設けて薄肉に形成されているので、その凸部
（３ａ）の屈曲性が良くなり、成形体の密度の均一化を
より高めることができる。According to the second aspect of the present invention, since the convex portion (3a) of the sole foot forming plate (3) is formed to be thin by providing a recess (3c) on the back side thereof, the convex portion (3a) is formed. )), The uniformity of the density of the molded body can be further improved.

【００１７】請求項３記載の発明においては、詰物（２
０）の存在により裏足成形板（３）の凸部（３ａ）が容
易に成形でき、かつ成形後の詰物（２０）の除去が容易
に行え、凹凸面を有する裏足成形板（３）を固着した成
形型を容易に製造できる。In the invention according to claim 3, the filling (2)
Due to the presence of (0), the projections (3a) of the sole foot forming plate (3) can be easily formed, and the padding (20) can be easily removed after the molding, and the sole foot forming plate (3) having an uneven surface. Can be easily manufactured.

【００１８】請求項４記載の発明によれば、薄肉の凸部
（３ａ）を容易に製造できる。According to the fourth aspect of the present invention, the thin convex portion (3a) can be easily manufactured.

【００１９】[0019]

【実施例】以下に本発明を図を参照して詳細に説明す
る。図１は請求項１記載の発明に係るタイル成形型の第
１実施例を示す縦断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a first embodiment of the tile mold according to the first aspect of the present invention.

【００２０】図１において、１は固定の型枠で、原料充
填空間１ａを形成している。２は金属製の裏型（下型）
で、その表面部が上記原料充填空間１ａ内に位置して固
定されている。３は弾性材からなる裏足成形板で、上記
裏型２の上面にコーティングにより固設されている。４
は金属製の型台で、これに上記裏型２がパッキン５を介
して載置され、これら型台４と裏型２がボルト６で結合
されている。７は金属製の成形機定盤で、これに上記型
台４が載置固定されている。８は昇降可能に備えられた
金属製の上型で、図示しない昇降駆動装置によって下降
することにより、上記原料充填空間１ａ内に充填された
タイル成形用の粉体原料９を加圧するようになってい
る。In FIG. 1, reference numeral 1 denotes a fixed mold, which forms a raw material filling space 1a. 2 is a metal back mold (lower mold)
Thus, the surface portion is positioned and fixed in the raw material filling space 1a. Reference numeral 3 denotes a back foot forming plate made of an elastic material, which is fixed on the upper surface of the back mold 2 by coating. 4
Is a metal mold stand, on which the back mold 2 is placed via a packing 5, and these mold stand 4 and the back mold 2 are connected by bolts 6. Reference numeral 7 denotes a metal molding machine surface plate on which the mold base 4 is mounted and fixed. Reference numeral 8 denotes a metal upper die which is provided so as to be able to ascend and descend, and is lowered by an elevating drive device (not shown) to pressurize the powder material 9 for tile molding filled in the material filling space 1a. ing.

【００２１】次に図１乃至図６において上記裏型２、裏
足成形板３、型台４について詳述する。裏型２は金属材
料で形成され、図の実施例では図１に示すように所定の
厚みを有し、図２に示すように平面形状が正方形に形成
されている。Next, the back mold 2, the back foot forming plate 3, and the mold base 4 will be described in detail with reference to FIGS. The back mold 2 is made of a metal material, has a predetermined thickness as shown in FIG. 1 in the illustrated embodiment, and has a square planar shape as shown in FIG.

【００２２】２ａは裏型２の表面に形成した溝で、その
横断面形状が図５及び図６に示すような凹状に形成され
ている（以下この溝を凹型溝２ａという）。またその平
面形状は図２の破線で示すような長尺に形成された長溝
状に形成されている。更に該凹形溝２ａは、成形すべき
タイルの裏足を形成するためのタイル裏面凹部に位置し
て形成されており、例えば図２に示すように、裏型２の
一方の方向（図２の前後方向）に２個、中間で分断され
て直列的に配置され、裏型２の他方の方向（図の左右方
向）に９個、適宜間隔を存して並列的に配置されてい
る。また、各凹形溝２ａの長手方向における外側端２ｂ
は、裏型２の側端２ｃに可及的に近ずけられている。
尚、この凹形溝２ａの個数と配置状態は上記実施例に限
定されるものではなく、成形するタイルの大きさ及び裏
足形状によって所望に選定するものである。Reference numeral 2a denotes a groove formed on the surface of the back mold 2, and its cross section is formed in a concave shape as shown in FIGS. 5 and 6 (hereinafter, this groove is referred to as a concave groove 2a). Further, the plane shape is formed as a long groove formed as shown by a broken line in FIG. Further, the concave groove 2a is formed in a concave portion on the back surface of the tile for forming the back foot of the tile to be formed. For example, as shown in FIG. (In the front-rear direction of the back mold), and are arranged in series with being divided in the middle, and 9 pieces are arranged in parallel in the other direction of the back mold 2 (the left-right direction in the figure) with an appropriate interval. Also, an outer end 2b in the longitudinal direction of each concave groove 2a
Is as close as possible to the side end 2c of the back mold 2.
The number and arrangement of the concave grooves 2a are not limited to those in the above-described embodiment, but may be selected as desired according to the size of the tile to be formed and the shape of the back foot.

【００２３】２ｄは裏型２に上下方向に貫通形成された
連接穴で、図２の破線で示すように、各凹形溝２ａの長
手方向の両側部に位置して設けられているとともに、図
５に示すようにその連接穴２ｄの直径Ｌ1 は凹形溝２ａ
の溝幅Ｌ2 よりも若干小径に設定されている。また、裏
型２の側端２ｃ側に位置する連接穴２ｄ1 は、図２に示
すように側端２ｃから遠ざけて配置されている。尚、該
連接穴２ｄは各凹形溝２ａの長手方向の中間部にも設け
てもよい。Reference numeral 2d denotes connecting holes formed in the back mold 2 so as to penetrate in the vertical direction. As shown by broken lines in FIG. 2, the connecting holes are provided on both longitudinal sides of each concave groove 2a. the diameter L 1 of the connecting hole 2d, as shown in FIG. 5 is a concave groove 2a
It is set slightly smaller in diameter than the groove width L 2 of the. Also, connecting holes 2d 1 located on the side end 2c side of the back die 2 is positioned away from the side end 2c as shown in FIG. Incidentally, the connecting hole 2d may be provided also at the intermediate portion in the longitudinal direction of each concave groove 2a.

【００２４】裏足成形板３は上記裏型２の表面の全面を
覆う一枚板で形成されて裏型２の表面に固着されてい
る。そして該裏足成形板３はウレタンゴム等の弾性材料
からなる薄板状（膜状）に形成され、裏型２の上記凹形
溝２ａが位置する部分には、凹形溝２ａの長手方向に沿
った凸部３ａが形成され、該凸部３ａ以外の部分は凹部
３ｂに形成され、該凹部３ｂの裏面がコーティングによ
り裏型２の表面に水密的に固着されている。そして、上
記凸部３ａの裏面と上記裏型２の凹形溝２ａとで長尺な
空洞部１０が形成され、該空洞部１０内の圧力により、
裏足成形板３の弾性限界内で凸部３ａが上下動するよう
になっている。尚、本実施例においては、凸部３ａの裏
面には、肉抜きされたくぼみ３ｄが形成され、該凸部３
ａの肉厚を薄くして該凸部３ａの内外方向への撓み変形
を良くしている。The back foot forming plate 3 is formed of a single plate covering the entire surface of the back mold 2 and is fixed to the surface of the back mold 2. The back foot forming plate 3 is formed in a thin plate (membrane shape) made of an elastic material such as urethane rubber, and a portion of the back mold 2 where the above-mentioned concave groove 2a is located is formed in the longitudinal direction of the concave groove 2a. A convex portion 3a is formed along with the convex portion 3a, and a portion other than the convex portion 3a is formed in a concave portion 3b, and the back surface of the concave portion 3b is water-tightly fixed to the surface of the back mold 2 by coating. Then, a long hollow portion 10 is formed by the back surface of the convex portion 3a and the concave groove 2a of the back mold 2, and the pressure in the hollow portion 10 causes
The convex portion 3a moves up and down within the elastic limit of the back foot forming plate 3. In this embodiment, a hollow 3d is formed on the back surface of the convex portion 3a.
The thickness of “a” is reduced to improve the bending deformation of the projection 3a in and out.

【００２５】型台４には、上記裏型２の各連接穴２ｄの
形成位置において、連接穴４ａが形成されており、その
上端開口部４ｂが上記連接穴２ｄの下端開口部と連通し
ている。更に該型台４には、一端が外部へ開口する液体
導入路４ｃが形成されており、これに上記全ての連接穴
４ａの下端が連通している。A connecting hole 4a is formed in the mold base 4 at a position where each connecting hole 2d of the back mold 2 is formed, and an upper end opening 4b thereof communicates with a lower end opening of the connecting hole 2d. I have. Further, the mold base 4 is formed with a liquid introduction passage 4c having one end open to the outside, and the lower ends of all the connection holes 4a communicate with this.

【００２６】図１において、１１は液空圧変換器で、そ
の体内の下半部に液体１２が貯溜され、上半部が気相部
１３となって、その気相部１３の空気が液体１２の液面
に接している。In FIG. 1, reference numeral 11 denotes a liquid-to-pneumatic converter, in which a liquid 12 is stored in a lower half of the body, and an upper half becomes a gas phase portion 13, and the air in the gas phase portion 13 is a liquid. 12 is in contact with the liquid surface.

【００２７】１４は空圧源で、圧力制御弁１５を通じて
上記液空圧変換器１１の気相部１３に連通しており、所
定の空気圧を上記液体１２に作用させるようになってい
る。１６は圧力計である。Reference numeral 14 denotes a pneumatic pressure source, which communicates with the gas phase portion 13 of the liquid / pneumatic pressure converter 11 through a pressure control valve 15 so that a predetermined air pressure acts on the liquid 12. 16 is a pressure gauge.

【００２８】１７は接続配管で、その一端が上記液空圧
変換器１１の底部に開口連通し、他端が上記液体導入路
４ｃに連通している。１８は接続配管１７に設けた逆止
弁で、液体導入路４ｃ方向への流通を許容し、これとは
逆方向への流通を阻止するもので、上記空洞部１０内の
液体に発生した高い液圧を受け止めるようになってい
る。１９は止め弁である。Reference numeral 17 denotes a connection pipe, one end of which is in open communication with the bottom of the liquid / pneumatic converter 11, and the other end of which is in communication with the liquid introduction path 4c. Reference numeral 18 denotes a check valve provided in the connection pipe 17, which permits flow in the direction of the liquid introduction path 4c and prevents flow in the opposite direction. It is designed to receive hydraulic pressure. 19 is a stop valve.

【００２９】１２ａは上記流体導入路４ｃと、連接穴４
ａ，２ｄ及び各空洞部１０に充満させた液体を示し、こ
れらの液体は上記接続配管１７を通じて液空圧変換器１
１内の液体１２と接している。Reference numeral 12a denotes the fluid introduction passage 4c and the connecting hole 4c.
a, 2d and liquids filled in the respective cavities 10;
1 is in contact with the liquid 12.

【００３０】次に本実施例の作用について説明する。上
記のように流体導入路４ｃと連接穴４ａ，２ｄ及び各空
洞部１０内に液体１２ａを充満させた状態で、空圧源１
４から供給された空気圧を圧力調整弁１５により所定の
空気圧、例えば０〜２ｋｇ／ｃｍ2 の範囲内で適切に調
圧して液空圧変換器１１の気相部１３に負荷させ、液体
１２を所定圧に加圧する。すると、その液体１２に作用
した圧力は、接続配管１７、液体導入路４ｃ、連接穴４
ａ，２ｄに充満された液体１２ａに伝播し、全空洞部１
０内に充満した液体１２ａを同圧に昇圧する。この液体
１２ａの昇圧によって弾性材料で形成された裏足成形板
３における凸部３ａは、その圧力を内側面で受圧し、や
や上膨らみの凸状になる。このように予圧をかけておく
のは、後の成形時の加圧により凸部３ａがへこみすぎな
いようにするためである。Next, the operation of this embodiment will be described. With the fluid introduction path 4c, the connection holes 4a, 2d, and the cavities 10 filled with the liquid 12a as described above, the pneumatic source 1
The air pressure supplied from 4 is appropriately adjusted by a pressure adjusting valve 15 at a predetermined air pressure within a range of, for example, 0 to 2 kg / cm 2 , and is applied to the gas phase portion 13 of the liquid-to-pneumatic converter 11, whereby the liquid 12 is discharged. Pressurize to a predetermined pressure. Then, the pressure applied to the liquid 12 is changed to the connection pipe 17, the liquid introduction path 4 c, and the connection hole 4.
a, 2d, and propagates to the liquid 12a,
The pressure of the liquid 12a filled in 0 is increased to the same pressure. Due to the pressure increase of the liquid 12a, the convex portion 3a of the back foot forming plate 3 formed of the elastic material receives the pressure on the inner surface, and becomes a slightly upwardly bulging convex shape. The reason why the preload is applied in this way is to prevent the convex portion 3a from being excessively dented due to the pressure applied during the subsequent molding.

【００３１】次で、上記の液体の予圧状態下において、
原料充填空間１ａ内にタイル原料９を所定量充填し、そ
の後、上型８を下降して充填されたタイル原料９を、そ
の上面から所定圧で加圧する。Next, under the above liquid pre-pressure state,
The raw material filling space 1a is filled with a predetermined amount of the tile raw material 9, and then the upper die 8 is lowered to press the filled tile raw material 9 at a predetermined pressure from its upper surface.

【００３２】このタイル原料９が加圧圧縮されると、図
７の矢印で示すように、タイル原料９内に作用した圧力
が裏足成形板３における凸部３ａと凹部３ｂに、その表
面側から作用しつつタイル原料９は所定の厚みに圧縮成
形される。When the tile material 9 is compressed under pressure, as shown by arrows in FIG. 7, the pressure applied to the tile material 9 is applied to the convex portions 3a and the concave portions 3b of the back foot forming plate 3 and the surface side thereof. The tile raw material 9 is compression-molded to a predetermined thickness while acting.

【００３３】このとき、同じ凸部３ａであっても原料充
填密度の高いところ、例えば図７のＡ部での凸部３ａ1
では原料９内に強い圧力が発生して該凸部３ａ1 が強く
押し下げられる。一方原料充填密度の低いところ、例え
ば図７のＢでの凸部３ａ2 では原料９内に発生する圧力
は弱く、その部分の凸部３ａ2 は弱くしか押し下げられ
ない。At this time, even in the case of the same convex portion 3a, the convex portion 3a 1 in the portion where the raw material filling density is high, for example, the portion A in FIG.
In strong pressure in the raw material 9 occurs and the convex portion 3a 1 is depressed strongly. Meanwhile at low raw material packing density, for example, the pressure generated in the convex portions 3a in 2, starting material 9 in B of FIG. 7 is weak, the convex portions 3a 2 of that part only depressed weakly.

【００３４】しかし、上記凸部３ａ1 と凸部３ａ2 にお
ける空洞部１０1 と１０2 は液体導入路４ｃで相互に連
通され、しかも逆止弁１８により液体が液空圧変換器１
１側へ逃げないようにしているため、その空洞部１０1
と１０2 の液体１２ａに発生する圧力はパスカルの原理
で示されるように同一圧力となる。したがって、上記の
ように高い圧力が発生した部分における凸部３ａ1 の液
体は押し下げられてその凸部３ａ1 の裏足成形板は下方
へ押し下げられ、その押し出された液体は、低い圧力が
発生した部分における凸部３ａ2 の空洞部１０2 に送り
こまれてその液体１２ａが上昇し、該凸部３ａ2 の裏足
成形板を押し上げて下部から原料９を圧縮する。However, the cavities 10 1 and 10 2 of the convex portions 3a 1 and 3a 2 are communicated with each other through the liquid introduction passage 4c.
Because it does not escape to one side, its hollow 10 1
When pressure generated 10 2 of the liquid 12a is the same pressure as indicated by the principle of Pascal. Therefore, Uraashi molded plate of the convex portions 3a 1 liquid protrusions 3a 1 in the portion where high pressure as described above has occurred is depressed is pushed downward, the extruded liquid, low pressure is generated The liquid 12a is sent to the cavity 10 2 of the convex portion 3a 2 in the portion where it rises, and the liquid 12a rises, pushing up the back foot forming plate of the convex portion 3a 2 and compressing the raw material 9 from below.

【００３５】次に、上記本発明による加圧状態と、上記
図１４及び図１５に示す従来の技術の加圧状態とを、図
８を用いて比較説明する。図８に示すように、タイル原
料９は２５０〜３５０ｋｇ／ｃｍ2 程度の圧力で圧縮さ
れると、原料充填深さのほぼ半分くらいの厚さの成形体
９ａとなる。Next, the pressurized state according to the present invention and the pressurized state according to the prior art shown in FIGS. 14 and 15 will be compared and described with reference to FIG. As shown in FIG. 8, when the tile raw material 9 is compressed at a pressure of about 250 to 350 kg / cm 2, it becomes a molded body 9a having a thickness that is approximately half the raw material filling depth.

【００３６】今、仮に原料充填深さｄ＝２０ｍｍ、成形
体厚さｔ＝１０ｍｍ、凸部高さｈ＝２ｍｍとしたとき下
型Ｃの表面の凹形部分Ｄにおける成形体９ａの圧縮比は
２０／１０＝２となる。また凸形部分Ｅにおける成形体
９ａの圧縮比は（２０−２）／（１０−２）＝１８／８
＝２．２５となり凸形部分Ｅの箇所の方が強く圧縮され
る。Now, assuming that the raw material filling depth d is 20 mm, the thickness of the compact is t = 10 mm, and the height of the convex portion is h = 2 mm, the compression ratio of the compact 9a in the concave portion D on the surface of the lower mold C is as follows. 20/10 = 2. The compression ratio of the compact 9a in the convex portion E is (20-2) / (10-2) = 18/8.
= 2.25, and the convex portion E is more strongly compressed.

【００３７】タイル原料は粉体であるので、液体のよう
にパスカルの原理は適用されないが、上下方向ばかりで
なく図８に矢印で示すように横方向にも若干の力が作用
して凸形部分Ｅの上にある部分から凹形部分Ｄの上部に
ある原料に圧力を及ぼすので、圧力比の低い凹形部分Ｄ
でも若干成形体９ａの密度の向上がみられる。Since the tile material is a powder, the principle of Pascal is not applied unlike the liquid, but a slight force acts not only in the vertical direction but also in the horizontal direction as indicated by the arrow in FIG. Since a pressure is applied from the portion above the portion E to the raw material above the concave portion D, the concave portion D having a low pressure ratio
However, the density of the compact 9a is slightly improved.

【００３８】ところが、図１４及び図１５に示す従来の
成形型においては、原料の充填密度にむらがあるとき、
充填密度の低いところは密度の高いところに比べて、成
形体の圧縮密度は凸形部分Ｅ及び凹形部分Ｄ共に低いま
まである。したがって、凸形部分Ｅから凹形部分Ｄに横
方向に作用する力は密度の低いところの方が弱く、凹形
部分Ｄの圧縮比が低いところを横方向の力が作用して密
度の高いところに近ずくように補正することは出来な
い。However, in the conventional molding dies shown in FIGS. 14 and 15, when there is unevenness in the packing density of the raw materials,
Where the packing density is low, the compression density of the molded body remains lower in both the convex portion E and the concave portion D than in the high density portion. Therefore, the force acting laterally from the convex portion E to the concave portion D is weaker at the lower density portion, and the lateral force acts at the lower compression ratio of the concave portion D to increase the density. It cannot be corrected to get close to the place.

【００３９】これに対し、本発明においては、上記のよ
うに凸形部分Ｅの上部の圧縮密度はほぼ均一になるの
で、凸形部分Ｅの上部から凹形部分Ｄの上部に対し横方
向に作用する圧力は一様になる。したがって、原料の充
填密度が低いところでも凹形部分Ｄの上部の原料に密度
が高いところと同様に横方向の圧力を及ぼすのでほぼ均
一な密度の成形体９ａを得ることが出来る。On the other hand, in the present invention, since the compression density at the upper portion of the convex portion E becomes almost uniform as described above, the compression density at the upper portion of the convex portion E is shifted from the upper portion of the concave portion D to the lateral direction. The acting pressure becomes uniform. Therefore, even in a place where the packing density of the raw material is low, a lateral pressure is exerted on the raw material above the concave portion D in the same manner as in a place where the density is high, so that a molded body 9a having a substantially uniform density can be obtained.

【００４０】尚、上記の裏足形成体３における凸部３ａ
に作用させる液体を加圧する手段は、上記図１に示す装
置に限定されるものではない。次に上記裏型２の表面に
裏足成形板３を備えた成形型の製造方法について説明す
る。The protrusion 3a in the above-mentioned sole foot forming body 3
The means for pressurizing the liquid acting on the device is not limited to the device shown in FIG. Next, a description will be given of a method of manufacturing a mold having the back foot forming plate 3 on the surface of the back mold 2.

【００４１】先ず、図９に示すように、型台４と連結す
る以前の状態における金属製の裏型２の表面に上記で説
明した凹形溝２ａを上記の配列状態で形成するとともに
上記の連接穴２ｄを表裏方向に貫通形成する。First, as shown in FIG. 9, the concave grooves 2a described above are formed in the above-described arrangement on the surface of the metal back mold 2 before being connected to the mold base 4, and The connecting hole 2d is formed to penetrate in the front and back directions.

【００４２】次で、上記全ての凹形溝２ａに図９に示す
ように詰物２０を、その上部が裏型２の凹形溝２ａ以外
の表面２ｅより突出するように装着する。この詰物２０
は各凹形溝２ａの長手方向全長に亘って装着される。こ
の詰物２０は、後述するように裏足成形板３を金属製の
裏型２に１００℃〜１２０℃の温度でコーティングする
ことから、この温度に耐え得る耐熱性を有し、かつ熱変
形の少ない材料である必要がある。また、コーティング
後は、空洞部１０から容易に排出できるものであること
が必要である。Next, as shown in FIG. 9, a padding 20 is mounted on all the concave grooves 2a so that the upper part thereof protrudes from the surface 2e of the back mold 2 other than the concave grooves 2a. This filling 20
Are mounted over the entire length in the longitudinal direction of each concave groove 2a. Since the filling 20 coats the back foot forming plate 3 on the metal back mold 2 at a temperature of 100 ° C. to 120 ° C. as described later, the filling 20 has heat resistance enough to withstand this temperature and heat deformation. It needs to be low in material. After coating, it is necessary that the material can be easily discharged from the cavity 10.

【００４３】そのため、この詰物としては、種々実験を
行った結果、１実施例として、長石微粉と粘土をＣＭＣ
（水溶性の糊材）と水で練ったペーストを乾燥固化した
ものが良いことが判明した。このような材料を用いた場
合に、この詰物２０の成形性、裏足成形板３のコーティ
ング時に必要な強度、耐熱性、寸法変化、溶解性の点に
おいてほぼ満足出来る結果が得られた。For this reason, as a result of conducting various experiments, as an example of the filling, feldspar fine powder and clay were mixed with CMC.
It was found that a paste obtained by drying and solidifying a paste (water-soluble glue material) and water was good. In the case of using such a material, almost satisfactory results were obtained in terms of the moldability of the filling 20 and the strength, heat resistance, dimensional change, and solubility required for coating the back foot forming plate 3.

【００４４】尚、上記詰物２０の長石微粉の代りに、非
水溶性の微粉体であれば他の物質を使用してもよく、ま
た、固型化するためのバインダーや糊材は水溶性のもの
であれば他の物質に置き換えてもよい。Instead of the feldspar fines of the filling 20, other substances may be used as long as they are water-insoluble fine powders, and the binder and the glue material for solidification are water-soluble. May be replaced with another substance.

【００４５】また、上記の詰物２０の成形方法として
は、裏型２の凹形溝２ａの上部に詰物成形用上型を配置
し、この上型と凹形溝２ａとに詰物成形材料を充填して
乾燥固化させ、裏型２上で直接詰物２０を成形してもよ
く、また、他の成形型を用いて成形して乾燥固化させた
後に、これを凹形溝２ａに嵌め込んで装着してもよい。As a method for molding the filling 20, an upper mold for molding is disposed above the concave groove 2 a of the back mold 2, and the upper mold and the concave groove 2 a are filled with the molding material. To form a filling 20 directly on the back mold 2. Alternatively, after molding using another mold to dry and solidify, it is fitted into the concave groove 2a and mounted. May be.

【００４６】尚、詰物２０には、裏足成形板３の成形時
に、詰物２０が裏足形成板３と接着しないように表面に
離型剤を塗布しておく。次に、上記のように詰物２０を
装着した後、図１０に示すように裏足形成板３の成形用
上型２１をセットする。そして、該成形用上型２１と裏
型２の表面及び詰物２０とで形成された型穴２２内にウ
レタンゴム等のモノマーを流し込んで充填し、金属製の
裏型２を１００℃〜１２０℃に加熱して上記モノマーを
硬化すると同時に裏型２の詰物２０以外の表面２ｅに接
着させる。これにより、図１乃至図６及び図１１に示す
ような薄肉で弾性を有する凹凸状の裏足形成板３が裏型
２の表面に水密的に固着した状態で成形される。A release agent is applied to the surface of the padding 20 so that the padding 20 does not adhere to the backfoot forming plate 3 when the backfoot forming plate 3 is formed. Next, after the filling 20 is attached as described above, the upper mold 21 for molding the back foot forming plate 3 is set as shown in FIG. Then, a monomer such as urethane rubber is poured into and filled into a mold hole 22 formed by the surface of the molding upper mold 21 and the back mold 2 and the filling 20, and the metal back mold 2 is heated to 100 ° C to 120 ° C. To cure the monomer and simultaneously adhere to the surface 2e other than the filling 20 of the back mold 2. As a result, the thin and elastic back foot forming plate 3 having elasticity as shown in FIGS. 1 to 6 and 11 is formed in a state of being fixed to the surface of the back mold 2 in a water-tight manner.

【００４７】次で、裏型２の各凹形溝２ａにおける一方
の連接穴２ｄの下端開口部から水を注入し、その水を詰
物２０に含浸させる。すると、その水によって詰物２０
のバインダーが溶解され、詰物２０が軟化し、更に注水
することにより他方の連接穴２ｄから詰物２０を形成し
ていた物質が排出される。そして、詰物２０の物質を排
出した後その水を抜くことにより図に示すような空洞部
１０が形成される。Next, water is injected from the lower end opening of one connecting hole 2d in each concave groove 2a of the back mold 2, and the water is impregnated into the filling 20. Then, the filling 20
Is melted, the filling 20 is softened, and water is further injected to discharge the substance forming the filling 20 from the other connecting hole 2d. Then, the cavity 10 as shown in the figure is formed by draining the water after discharging the substance of the filling 20.

【００４８】以上のような製造方法によれば、裏型２の
表面に、裏面にくぼみ３ｃを形成した凸部を有する裏足
形成板３を容易に成形固着できるとともに、その成形に
使用した詰物２０を使用後に容易に抜き取ることができ
る。According to the manufacturing method as described above, the back foot forming plate 3 having the convex portion having the concave portion 3c formed on the back surface can be easily formed and fixed on the surface of the back mold 2, and the filling material used for the forming can be formed. 20 can be easily removed after use.

【００４９】図１２は本発明の第２実施例を示す。本第
２実施例は、上記第１実施例における裏足形成板３のく
ぼみ３ｃの横幅寸法Ｌ3 よりも裏型２における凹型溝２
ａの横幅寸法Ｌ4 を大きく設定したものである。FIG. 12 shows a second embodiment of the present invention. The second embodiment book, concave grooves 2 in the back die 2 than the width dimension L 3 of the recess 3c of the back legs forming plate 3 in the first embodiment
It is obtained by setting large the width dimension L 4 of a.

【００５０】図１３は本発明の第３実施例を示す。本第
３実施例は、上記第１実施例における裏足形成板３の凸
部３ａのくぼみ３ｃをなくし、凸部３ａを、その下面が
他の下面と面一になるようにして厚肉に形成したもので
ある。FIG. 13 shows a third embodiment of the present invention. In the third embodiment, the depression 3c of the projection 3a of the back foot forming plate 3 in the first embodiment is eliminated, and the projection 3a is made thicker so that its lower surface is flush with the other lower surface. It is formed.

【００５１】上記第２及び第３実施例の凸部３ａの断面
形状は、上記の詰物２０の断面形状を変えることにより
容易に設定でき、また、このような断面形状以外の形状
も詰物２０の断面形状を所望に設定することにより容易
に形成できる。そして、凸部３ａの断面形状、すなわち
空洞部１０の形状を、粉体原料の充填密度の状態やタイ
ル裏足形状等に対して最適な形状にすることにより、加
圧された後においての密度のばらつきの少ない成形体を
得ることができる。The cross-sectional shape of the projection 3a in the second and third embodiments can be easily set by changing the cross-sectional shape of the padding 20, and shapes other than such a cross-sectional shape can also be used. It can be easily formed by setting the cross-sectional shape as desired. Then, the cross-sectional shape of the convex portion 3a, that is, the shape of the hollow portion 10 is optimized to the state of the packing density of the powder raw material, the shape of the tile back foot, and the like, so that the density after pressing is increased. A compact having a small variation in the thickness can be obtained.

【００５２】尚、上記第２及び第３実施例において、そ
の他の構造は上記第１実施例と同様な構造であり、ま
た、その裏足形成板３の製造方法も上記と同様である。In the second and third embodiments, the other structure is the same as that of the first embodiment, and the method of manufacturing the back foot forming plate 3 is also the same.

【００５３】[0053]

【発明の効果】以上のようであるから、請求項１記載の
発明によれば、裏足タイルの成形において、成形型内に
充填されたタイル原料に密度むらがあっても、密度のほ
ぼ均一な成形体を成形でき、その成形体の焼成時におい
て、そのタイルの変形が極めて少なくなり、良品のタイ
ルを得ることができる。更に、その連接穴（２ｄ）を部
分的に設けたことにより、裏型（２）の弱体化を抑制
し、凹形溝（２ａ）を裏型（２）の側端近くまで設けて
成形体の全範囲における密度の均一化をより高めること
ができる上に、穴明け加工を少なくして作業の容易化に
よるコスト低減を図ることができる。As described above, according to the first aspect of the present invention, in the formation of the sole foot tile, even if the tile raw material filled in the forming die has uneven density, the density is substantially uniform. A compact can be formed, and when the compact is fired, the deformation of the tile is extremely reduced, and a good-quality tile can be obtained. Further, by partially providing the connecting hole (2d), the weakening of the back mold (2) is suppressed, and the concave groove (2a) is provided near the side end of the back mold (2) to form the molded body. The uniformity of the density in the entire range can be further improved, and the cost can be reduced by facilitating the work by reducing drilling.

【００５４】請求項２記載の発明によれば、裏足成形板
の凸部の屈曲性を良くして成形体の密度の均一化をより
高めることができる。請求項３記載の発明によれば、凹
凸面を有する裏足成形板を表面に備えた成形型を容易に
製造できる。According to the second aspect of the present invention, it is possible to improve the flexibility of the convex portion of the back foot forming plate and to further improve the uniformity of the density of the formed body. According to the third aspect of the present invention, it is possible to easily manufacture a molding die having a back foot molding plate having an uneven surface on the surface.

【００５５】請求項４記載の発明によれば、薄肉の凸部
を有する裏足成形板を表面に備えた成形型を容易に製造
できる。According to the fourth aspect of the present invention, it is possible to easily manufacture a mold having a back foot forming plate having a thin convex portion on its surface.

【図面の簡単な説明】[Brief description of the drawings]

【図１】 本発明の成形型を備えた成形装置の実施例を
示す断面図。FIG. 1 is a cross-sectional view showing an embodiment of a molding apparatus provided with a molding die of the present invention.

【図２】 裏足成形板を備えた裏型の平面図。FIG. 2 is a plan view of a back mold provided with a back foot forming plate.

【図３】 図２におけるＡ−Ａ線断面図。FIG. 3 is a sectional view taken along line AA in FIG. 2;

【図４】 図２におけるＢ−Ｂ線断面図。FIG. 4 is a sectional view taken along line BB in FIG. 2;

【図５】 図２におけるＣ−Ｃ線拡大断面図。FIG. 5 is an enlarged sectional view taken along line CC in FIG. 2;

【図６】 図２におけるＤ−Ｄ線拡大断面図。FIG. 6 is an enlarged sectional view taken along line DD in FIG. 2;

【図７】 図５において加圧力を説明する断面図。FIG. 7 is a sectional view illustrating a pressing force in FIG. 5;

【図８】 加圧力を説明する図。FIG. 8 is a view for explaining a pressing force.

【図９】 成形型の製造方法における裏型に詰物を充填
した断面図で図２のＤ−Ｄ線に該当する断面図。9 is a cross-sectional view in which a back mold is filled with a filling in the method of manufacturing a molding die, and is a cross-sectional view corresponding to line DD of FIG. 2;

【図１０】 裏足成形板を成形する上型を配置した断面
図。FIG. 10 is a cross-sectional view in which an upper die for forming a sole foot forming plate is arranged.

【図１１】 裏型に裏足成形板をコーティングした状態
であって、詰物がまだ内蔵されている断面図。FIG. 11 is a cross-sectional view showing a state where a back mold is coated with a back foot forming plate, and a filling is still incorporated therein.

【図１２】 本発明の他の実施例を示すもので、図２の
Ｄ−Ｄ線に該当する断面図。FIG. 12 shows another embodiment of the present invention, and is a cross-sectional view taken along line DD of FIG.

【図１３】 本発明の更に他の実施例を示すもので、図
２のＤ−Ｄ線に該当する断面図。FIG. 13 is a cross-sectional view showing still another embodiment of the present invention and corresponding to the line DD in FIG. 2;

【図１４】 従来の成形型を示す一部断面図。FIG. 14 is a partial cross-sectional view showing a conventional molding die.

【図１５】 従来の他の成形型を示す一部断面図。FIG. 15 is a partial cross-sectional view showing another conventional molding die.

【符号の説明】[Explanation of symbols]

２…裏型 ２ａ…凹形溝 ２ｄ…連接穴 ３…裏足成形
板 ３ａ…凸部 ３ｃ…くぼみ １０…空洞部 ２０…
詰物Reference numeral 2: Back mold 2a: Recessed groove 2d: Connecting hole 3: Back foot forming plate 3a: Convex part 3c: Recess 10: Cavity part 20:
Filling

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 金属製の裏型の表面に複数の溝を形成す
るとともに該裏型には上記各溝に部分的に開口する連接
穴を形成し、裏型の表面には、上記各溝の部分が凸状で
他の部分が凹状の弾性材からなる裏足成形板を水密的に
固着し、上記各溝で形成される全ての空洞部を上記連接
穴を通じて相互に連通し、該空洞部と連接穴に液体を密
封状態で充填したことを特徴とするタイルの成形型。1. A plurality of grooves are formed on a surface of a metal back mold, and a connecting hole partially opened in each of the grooves is formed on the back mold, and each of the grooves is formed on a surface of the back mold. A part of the sole is convex and the other part is formed of a resilient elastic material in a concave shape. The sole plate is fixed in a watertight manner, and all the cavities formed by the respective grooves communicate with each other through the connection holes. A mold for a tile, characterized in that a liquid is hermetically filled in a portion and a connection hole. 【請求項２】 請求項１記載の裏足成形板における凸部
が、その裏側にくぼみを設けて薄肉に形成されているこ
とを特徴とするタイルの成形型。2. A tile forming die according to claim 1, wherein the convex portion of the sole foot forming plate according to claim 1 is formed to be thin with a recess formed on the back side thereof. 【請求項３】 金属製の裏型の表面に複数の溝を形成す
るとともに該裏型には上記各溝に部分的に開口する連接
穴を形成し、上記各溝には詰物を装着しておき、裏型の
表面を、弾性材により、上記詰物の上部が凸状になるよ
うにコーティングした後、上記の詰物を溶解排出して上
記溝部を空洞化させることを特徴とするタイルの成形型
の製造方法。Wherein a connecting hole for partially open to the respective grooves formed on the backing type to form a plurality of grooves to a metal back type surface, in the above each groove fitted with a packed product In addition, after the surface of the back mold is coated with an elastic material so that the top of the filling becomes convex, the filling is dissolved and discharged to hollow the groove. Mold manufacturing method. 【請求項４】 請求項３記載の詰物の上部が溝から突出
していることを特徴とするタイルの成形型の製造方法。4. A method of manufacturing a mold for tiles, wherein the upper part of the filling according to claim 3 protrudes from the groove.
JP6245726A 1994-10-12 1994-10-12 Tile mold and method of manufacturing the mold Expired - Fee Related JP2729029B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6245726A JP2729029B2 (en) 1994-10-12 1994-10-12 Tile mold and method of manufacturing the mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6245726A JP2729029B2 (en) 1994-10-12 1994-10-12 Tile mold and method of manufacturing the mold

Publications (2)

Publication Number Publication Date
JPH08108418A JPH08108418A (en) 1996-04-30
JP2729029B2 true JP2729029B2 (en) 1998-03-18

Family

ID=17137896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6245726A Expired - Fee Related JP2729029B2 (en) 1994-10-12 1994-10-12 Tile mold and method of manufacturing the mold

Country Status (1)

Country Link
JP (1) JP2729029B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5085386B2 (en) * 2007-04-05 2012-11-28 日本超硬株式会社 Tile mold

Also Published As

Publication number Publication date
JPH08108418A (en) 1996-04-30

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