JPH0525850Y2 - - Google Patents
Info
- Publication number
- JPH0525850Y2 JPH0525850Y2 JP3189689U JP3189689U JPH0525850Y2 JP H0525850 Y2 JPH0525850 Y2 JP H0525850Y2 JP 3189689 U JP3189689 U JP 3189689U JP 3189689 U JP3189689 U JP 3189689U JP H0525850 Y2 JPH0525850 Y2 JP H0525850Y2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- layer
- elastic material
- mating
- mating surfaces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000013011 mating Effects 0.000 claims description 43
- 239000013013 elastic material Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 25
- 238000005266 casting Methods 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 21
- 239000011347 resin Substances 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 239000002002 slurry Substances 0.000 description 12
- 238000000465 moulding Methods 0.000 description 9
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0011—Mould seals
-
- 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
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/26—Producing shaped prefabricated articles from the material by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor ; specially for manufacturing articles starting from a ceramic slip; Moulds therefor
- B28B1/261—Moulds therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Dispersion Chemistry (AREA)
- Producing Shaped Articles From Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、圧力鋳込みに用いられる成形型に係
り、特にその内部の成形空間から泥漿や加圧水な
どが漏洩するのを防止するよう改良された圧力鋳
込み用成形型に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a mold used for pressure casting, and is particularly improved to prevent leakage of slurry, pressurized water, etc. from the molding space inside the mold. This invention relates to a mold for pressure casting.
［従来の技術］
圧力鋳込みは、主として排泥鋳込み成形の実施
にあたつて圧力を付加するものであり、便器や洗
面器などの衛生陶器類を製造する方法として、今
日、多用されている。この圧力鋳込みによる鋳込
み方法を概説すると、成形型内に形成される成形
空間へ泥漿（成形用の粉粒状坏土を泥状にしたも
の）を注入して加圧することにより、泥漿中で不
要となる液分（例えば水）を成形型中へ浸透させ
ると共に、残る粉粒状坏土を当該成形型内面へ着
肉させ、余分な泥漿は成形型内から排出し、しか
る後、成形型を分離して成形品を取り出すという
ものである。[Prior Art] Pressure casting is a method in which pressure is applied mainly when carrying out sludge casting, and is widely used today as a method for manufacturing sanitary ware such as toilet bowls and washbasins. To give an overview of this pressure casting casting method, by injecting slurry (sludgy form of powdered clay for molding) into the molding space formed in the mold and pressurizing it, unnecessary parts are removed in the slurry. At the same time, a liquid (e.g. water) is allowed to penetrate into the mold, the remaining powdery clay is deposited on the inner surface of the mold, excess slurry is discharged from the mold, and then the mold is separated. The molded product is then removed.
この圧力鋳込みに用いられる成形型を、第２図
に側断面図で示す。図示した成形型１は、洗面器
を鋳込むためのものであつて、型内の空白部分が
その成形空間である。該成形型１は、前記成形空
間側から、濾過材層２、裏打層３、耐圧補強層４
により重合的に形成されたものであつて、型全体
としては、上型５と下型６とに分離可能になつて
いる。 The mold used for this pressure casting is shown in a side sectional view in FIG. The illustrated mold 1 is for casting a wash basin, and the blank space within the mold is the molding space. The mold 1 includes, from the molding space side, a filtering material layer 2, a backing layer 3, and a pressure-resistant reinforcing layer 4.
The entire mold can be separated into an upper mold 5 and a lower mold 6.
前記濾過材層２は、多孔質の合成樹脂（又は石
膏）により形成され、前記裏打層３は非多孔質の
合成樹脂（又はバサモルタル）により形成され、
前記耐圧補強層４は鉄板などにより形成されてい
る。なお、前記濾過材層２中には、鋳込み時にお
いて泥漿中の水分を吸引除去したり、成形品の脱
型時において成形面２ａへ水膜を形成させるため
に水分を加圧供給したりする多孔質チユーブ７が
埋設されていた。 The filtering material layer 2 is formed of a porous synthetic resin (or gypsum), the backing layer 3 is formed of a non-porous synthetic resin (or basa mortar),
The pressure-resistant reinforcing layer 4 is formed of an iron plate or the like. In addition, water is supplied to the filtering material layer 2 under pressure in order to remove water in the slurry by suction during casting, and to form a water film on the molding surface 2a during demolding of the molded product. A porous tube 7 was buried there.
ところで、前記成形型１において、上型５と下
型６とを合型させるうえで重要なことは、互いの
接面（合せ面）部分が水封可能なほどに擦り合わ
されていなければならない点にある。なぜなら、
圧力鋳込みでは、上述した如く成形空間内へ泥漿
を注入した後に、該泥漿を加圧して坏土の着肉を
促進させていたからである。そのため、従来は、
上型５及び下型６の合型時において、それぞれの
裏打層３，３相互が強く接面し合うようにして、
その水封性を確保するようにしていた。もつと
も、この合型状態にあるときには、濾過材層２，
２相互についても略々当接し合うようにはなつて
いたが、該濾過材層２は、多孔質であるが故にそ
の機械的強度も劣り、合型時の荷重及び圧力負担
はもつぱら裏打層３，３が受け持つものであつ
た。 By the way, in the mold 1, what is important when molding the upper mold 5 and the lower mold 6 is that their contact surfaces (mating surfaces) must rub against each other to the extent that they can be water-sealed. It is in. because,
This is because in pressure casting, as described above, after the slurry is injected into the molding space, the slurry is pressurized to promote inkling of the clay. Therefore, conventionally,
When molding the upper mold 5 and the lower mold 6, the respective backing layers 3 and 3 are brought into strong contact with each other,
The water sealing property was ensured. However, when in this combined state, the filter material layer 2,
However, since the filter material layer 2 is porous, its mechanical strength is inferior, and the load and pressure burden upon mating is solely carried by the backing layer. 3,3 was in charge.
［考案が解決しようとする課題］
かかる圧力鋳込み用成形型においては、割型
（第２図の上型５と下型６）の合せ面に若干の凹
凸が存在することがある。このような凹凸が存在
すると、割型同志の合せ面同志が水密的には密着
せず、泥漿が漏出する。また、この合せ面の間に
泥漿の硬化物や型の破片等の異物が噛み込まれた
ときにも、割型同志の合せ面が水密的には重なり
合わず、泥漿が漏れ出すことがある。[Problems to be solved by the invention] In such a pressure casting mold, there may be some unevenness on the mating surfaces of the split molds (upper mold 5 and lower mold 6 in FIG. 2). If such unevenness exists, the mating surfaces of the split molds will not come into close contact with each other in a watertight manner, and the slurry will leak out. Additionally, if foreign matter such as hardened slurry or mold fragments gets caught between the mating surfaces, the mating surfaces of the split molds will not overlap watertight, and the slurry may leak out. .
さらに、このような異物を割型の濾過材層同志
の間に介在させたまま割型同志を強く押し付け合
うと、該濾過材層が欠けることがあつた。（この
濾過材層は多孔質であるから強度が低く、欠け易
い。）この欠けが生じても、水封性が低下して泥
漿が漏れ出す。また、弾性材層の着肉面側が欠け
ると、着肉させて得られる成形物の表面に、該欠
けに倣つた形状のバリ状凸部が形成されてしま
い、成形物の表面性状が悪化する。 Furthermore, when the split molds are strongly pressed against each other with such foreign matter interposed between the filter material layers of the split molds, the filter material layers may be chipped. (Since this filter material layer is porous, its strength is low and it is easily chipped.) Even if this chipping occurs, the water sealing property is reduced and the slurry leaks out. In addition, if the inked surface side of the elastic material layer is chipped, a burr-like convex portion having a shape that follows the chip will be formed on the surface of the molded product obtained by adding ink, which deteriorates the surface quality of the molded product. .
［課題を解決するための手段］
本考案の圧力鋳込み用成形型は、内面が多孔質
の濾過材層で構成された複数の割型を合型してな
る圧力鋳込み用成形型において、割型同志の合せ
面のうち濾過材層の全面にシール樹脂層が塗着形
成されると共に、割型同志の合せ面のうち着肉面
に沿つた部分にのみ弾性材を設けたことを特徴と
するものである。[Means for Solving the Problems] The pressure casting mold of the present invention is a pressure casting mold formed by combining a plurality of split molds each having a porous filter layer on the inner surface. A sealing resin layer is applied and formed on the entire surface of the filtration material layer among the mating surfaces of the two molds, and an elastic material is provided only on the part of the mating surfaces of the split molds along the inking surface. It is something.
［作用］
本考案の圧力鋳込み用成形型においてはシール
樹脂層及び弾性材が割型の合せ面に介在されるの
で、該合せ面が水密的に重なり合い、水封性が向
上される。しかも、この弾性材が介在されると、
異物が合せ面にかみ込まれても、異物が割型の合
せ面を押す力が小さくなり、濾過材層の欠けも防
止される。[Function] In the pressure casting mold of the present invention, the sealing resin layer and the elastic material are interposed on the mating surfaces of the split molds, so the mating surfaces overlap in a watertight manner, improving water sealing properties. Moreover, when this elastic material is interposed,
Even if foreign matter gets caught in the mating surface, the force with which the foreign matter pushes against the mating surface of the split mold is reduced, and chipping of the filter material layer is also prevented.
なお、この弾性材は合せ面のうち着肉面に沿つ
た濾過材層にのみ設ける。このようにすると、割
型同志の合せ面に多少のズレがあつても、各割型
に設けられた弾性材同志が十分に密着されるよう
になる。この結果、該合せ面の着肉面付近できわ
めて密に水封がなされ、泥漿の合せ面への浸入が
確実に防止される。 Note that this elastic material is provided only on the filtering material layer along the inked surface of the mating surfaces. In this way, even if there is some misalignment in the mating surfaces of the split molds, the elastic materials provided on each split mold can be brought into close contact with each other. As a result, an extremely tight water seal is formed near the bonded surface of the mating surface, and infiltration of slime into the mating surface is reliably prevented.
［実施例］
以下、本考案を、その実施例を示す図面に基づ
いて説明すると次の通りである。[Examples] Hereinafter, the present invention will be described based on drawings showing examples thereof.
第１図は実施例に係る圧力鋳込み用成形型の要
部を拡大して示す部分断面図である。同図は、従
来例を示した第２図中の矢符Ａ部に略々対応する
部分であつて、上方側に描いた割型８（第２図の
上型５に対応）と、下方側に描いた割型９（第２
図の下型６に対応）とが、上下に分離している状
態を示す。 FIG. 1 is a partially sectional view showing an enlarged main part of a mold for pressure casting according to an embodiment. This figure roughly corresponds to the arrow A section in FIG. 2 showing the conventional example, and shows a split mold 8 drawn on the upper side (corresponding to the upper mold 5 in FIG. 2) and a lower part. Split mold 9 drawn on the side (second
(corresponding to the lower mold 6 in the figure) are separated vertically.
本実施例においては、下型９の合せ面に樹脂シ
ール層１１が形成されている。なお、樹脂シール
層１１は、上型８の合せ面には形成されていな
い。 In this embodiment, a resin sealing layer 11 is formed on the mating surface of the lower mold 9. Note that the resin seal layer 11 is not formed on the mating surface of the upper mold 8.
前記樹脂シール層１１は、エポキシ系、ウレタ
ン系、シリコン系、ポリエステル系、フエノール
系などの樹脂パテよりなる。この樹脂シール層１
１を形成するには、下型９の合せ面に前記樹脂パ
テを所定厚さ範囲内で塗布しておき、上型８の合
せ面に剥離剤（例えばシリコン系離型剤やワツク
ス）を塗布しておき、これら型９，８を合型さ
せ、硬化させるようにする。該型９，８を合型さ
せたまま樹脂を硬化させることにより、樹脂硬化
層はその表面に上型８の合せ面の凹凸が転写され
たものとなる。所要程度に樹脂が硬化した後、型
８，９を引き離す。前記の通り、上型８の合せ面
にのみ剥離剤が塗布されているので、シール樹脂
層は上型８の合せ面から容易に剥離し、下型９の
合せ面に強固に付着した状態にて形成される。こ
のように、樹脂は上型８と下型９との間で挟まれ
て展延されるので、樹脂シール層１１は展延シー
ル層とも呼び得る。 The resin seal layer 11 is made of an epoxy-based, urethane-based, silicone-based, polyester-based, or phenol-based resin putty. This resin seal layer 1
1, the mating surface of the lower mold 9 is coated with the resin putty within a predetermined thickness range, and the mating surface of the upper mold 8 is coated with a release agent (for example, a silicone mold release agent or wax). Then, these molds 9 and 8 are brought together and hardened. By curing the resin while keeping the molds 9 and 8 together, the resin cured layer has the irregularities of the mating surface of the upper mold 8 transferred onto its surface. After the resin has hardened to a required degree, the molds 8 and 9 are separated. As mentioned above, since the release agent is applied only to the mating surface of the upper mold 8, the sealing resin layer is easily peeled off from the mating surface of the upper mold 8 and firmly adheres to the mating surface of the lower mold 9. It is formed by In this way, since the resin is spread while being sandwiched between the upper mold 8 and the lower mold 9, the resin seal layer 11 can also be called a spread seal layer.
この樹脂シール層１１の厚さは、５mm以下にす
ることが好ましく、その最適値は約0.5mmであつ
た。なお、前記樹脂パテの圧縮展延によつて、下
型９の内外部へヒレ状にはみ出すものがあつた場
合には、該樹脂パテが硬化した後に、このヒレ状
部分を切り取れば良い。 The thickness of this resin seal layer 11 is preferably 5 mm or less, and its optimum value was about 0.5 mm. In addition, if there is a fin-like part protruding from the inside and outside of the lower mold 9 due to the compression and spreading of the resin putty, this fin-like part can be cut off after the resin putty has hardened.
なお、上型８及び下型９には、その合型時の位
置ずれを防止するために、雌雄的に嵌め合わされ
る凸部と凹部とを設けても良い。これら凸部及び
凹部は、通常、上型８、下型９の合せ面の四隅部
へ配置される。 Note that the upper mold 8 and the lower mold 9 may be provided with a convex portion and a recessed portion that are fitted together in a male-female manner in order to prevent positional displacement when the molds are assembled. These convex portions and concave portions are usually arranged at the four corners of the mating surfaces of the upper mold 8 and the lower mold 9.
本実施例にあつては、下型９の濾過材層２の合
せ面に弾性材１０が設けられている。この弾性材
１０は、本実施例では接着剤により合せ面に貼着
されている。 In this embodiment, an elastic material 10 is provided on the mating surface of the filter material layer 2 of the lower mold 9. In this embodiment, the elastic material 10 is adhered to the mating surface with an adhesive.
このように構成された圧力鋳込み用成形型にお
いては、上型８及び下型９の合せ面に樹脂シール
層１１が展延されているので、両型８，９の合せ
面が整合し、水密性が高められる。そして、この
合せ面には弾性材１０が設けられているから、上
型８と下型９との合せ位置が合型時ごとに微妙に
変化しても、弾性材１０により両型８，９の合せ
面は水密的に重ね合さる。 In the pressure casting mold configured in this way, the resin seal layer 11 is spread on the mating surfaces of the upper mold 8 and the lower mold 9, so that the mating surfaces of both molds 8 and 9 are aligned and watertight. Sexuality is enhanced. Since the elastic material 10 is provided on this mating surface, even if the mating position of the upper mold 8 and the lower mold 9 slightly changes each time the molds are joined, the elastic material 10 allows both molds 8, 9 to The mating surfaces of the two are watertightly overlapped.
また、弾性材１０を設けると、異物が上型８と
下型９との合せ面に噛み込れても、濾過材層２を
圧迫する力が小さくなり、濾過材層２の欠けが防
止される。 Further, by providing the elastic material 10, even if a foreign object gets caught in the mating surface of the upper mold 8 and the lower mold 9, the force pressing against the filtering material layer 2 is reduced, and chipping of the filtering material layer 2 is prevented. Ru.
即ち、例えば異物が弾性材１０の上に存在した
状態で上型８と下型９とを合型した場合、異物は
弾性材１０にめり込むようになり、上型８と下型
９との合せ面は弾性材１０により密に水封され
る。そして、異物が濾過材層２を圧迫する力も小
さい。 That is, for example, if the upper mold 8 and the lower mold 9 are joined together with foreign matter present on the elastic material 10, the foreign matter will sink into the elastic material 10, and the mating of the upper mold 8 and the lower mold 9 will be interrupted. The surface is tightly water-sealed by the elastic material 10. Further, the force with which the foreign matter presses the filtering material layer 2 is also small.
異物が弾性材１０以外の合せ面に存在する場合
にあつても、上型８と下型９とを合型する場合、
上型８と下型９との間のうち弾性材１０以外の部
分には、弾性材１０の圧縮後の厚み分だけクリア
ランスが介在する。このクリアランスのために、
異物が濾過材層２を圧迫する力は小さくなり、濾
過材層２の欠けが防止される。 Even if foreign matter exists on the mating surface other than the elastic material 10, when joining the upper mold 8 and the lower mold 9,
A clearance corresponding to the thickness of the elastic material 10 after compression is provided between the upper mold 8 and the lower mold 9 in a portion other than the elastic material 10. For this clearance,
The force with which the foreign matter presses the filtering material layer 2 is reduced, and chipping of the filtering material layer 2 is prevented.
本考案において、弾性材１０としては軟質で独
立気孔の多孔質材が用いられる。独立気孔とする
ことにより、泥漿が浸み込まず、弾性材１０の弾
力性が恒久的なものになると共に、十分な水封性
が得られる。 In the present invention, the elastic material 10 is a soft porous material with closed pores. By forming independent pores, slime does not penetrate, the elasticity of the elastic material 10 becomes permanent, and sufficient water sealing properties are obtained.
好ましい弾性材の材質としては、ウレタンスポ
ンジが例示される。弾性材１０の幅ｂは３〜50mm
程度が好適であり、弾性材１０を濾過材層２の部
分にのみ設けるようにする。弾性材１０は、0.2
〜３mm程度の厚さとするのが好適である。 A preferable example of the elastic material is urethane sponge. The width b of the elastic material 10 is 3 to 50 mm
The elastic material 10 is preferably provided only in the filter layer 2. The elastic material 10 is 0.2
The thickness is preferably about 3 mm.
この弾性材１０は、接着剤により接着すること
により、その位置が不変のものとなり、合型し易
くなる。また、脱型の際に水圧がかかつても、弾
性材が剥離しない。ただし、本考案では接着剤を
用いなくとも良い。好ましい接着剤としては変性
ポリアミン系のものが例示される。 By bonding this elastic material 10 with an adhesive, its position remains unchanged, making it easier to mold. Furthermore, even if water pressure is applied during demolding, the elastic material will not peel off. However, the present invention does not require the use of adhesive. Preferred adhesives include those based on modified polyamines.
弾性材１０は、図示の如く濾過材層２の着肉面
から少し後退させて設けるのが好適である。この
ように後退させて弾性材１０を設けると、上型８
と下型９とを合型させて押し付けた際に弾性材１
０が合せ面方向に広がつても、弾性材１０が着肉
面に対してはみ出すことが防止される。この後退
代ａは１〜20mmとりわけ５〜10mm程度が好適であ
る。なお、この後退代ａの部分に異物が噛み込ん
でも、前記の通り弾性材１０の圧縮厚み分だけク
リアランスがあるので、濾過材層２の欠けが防止
されると共に、十分な水封がなされる。 It is preferable that the elastic material 10 is provided slightly retreating from the inked surface of the filter material layer 2 as shown in the figure. When the elastic material 10 is provided by retreating in this way, the upper mold 8
When the lower mold 9 and the lower mold 9 are combined and pressed, the elastic material 1
Even if the 0 spreads in the direction of the mating surfaces, the elastic material 10 is prevented from protruding from the inked surface. This retreating distance a is preferably about 1 to 20 mm, particularly about 5 to 10 mm. Furthermore, even if a foreign object gets caught in the part of the retreating allowance a, there is a clearance equal to the compressed thickness of the elastic material 10 as described above, so chipping of the filter material layer 2 is prevented and sufficient water sealing is achieved. .
上記実施例は裏打層３を有するものに係るが、
本考案にあつては、第３，４図の如く濾過材層２
が耐圧補強層４に直に接するものにも適用でき
る。 Although the above embodiment relates to one having a backing layer 3,
In the present invention, as shown in Figs. 3 and 4, the filter material layer 2
It can also be applied to those in which the pressure-resistant reinforcing layer 4 is in direct contact.
上記実施例では、樹脂シール層１１が上型８，
９の合せ面の全体（ただし、耐圧補強層４を除
く）に形成されているが、合せ面のうち濾過材層
２の部分にのみ形成しても良い。また、濾過材層
２と、裏打層３のうちの一部とに樹脂シール層１
１を形成しても良い。 In the above embodiment, the resin seal layer 11 is
Although it is formed on the entire mating surface of No. 9 (excluding the pressure-resistant reinforcing layer 4), it may be formed only on the portion of the mating surface where the filter material layer 2 is located. Further, a resin seal layer 1 is provided on the filter material layer 2 and a part of the backing layer 3.
1 may be formed.
また、前記実施例は、洗面器を鋳込むための成
形型について本案構造を実施したため、割型がそ
れぞれ上型と下型とに対応するものである旨説明
した。しかし、便器（殊に洋風便器）などを鋳込
むための成形型に本案構造を実施する場合には、
上型、下型の他に背面型や中子型などが加わるも
のであり、このような場合には、それぞれの型の
合せ面に上記のように弾性材を設ければ良い。 Furthermore, in the above embodiment, since the proposed structure was applied to a mold for casting a washbasin, it was explained that the split molds correspond to the upper mold and the lower mold, respectively. However, when implementing the proposed structure in a mold for casting toilet bowls (especially Western-style toilet bowls),
In addition to the upper mold and the lower mold, a back mold, a core mold, etc. are added, and in such a case, an elastic material may be provided on the mating surface of each mold as described above.
［考案の効果］
以上の説明で明らかなように、本考案に係る圧
力鋳込み用成形型によれば、濾過材層相互の合せ
面において泥漿や加圧水が漏洩することはないの
で、成形品にバリが発生することはない。従つ
て、成形品の乾燥が始まる前にいちいちバリを取
り除くような必要はなく、鋳込み作業全体として
の作業能率が向上する。また、割型を製造する場
合に、割型の合せ面の平面度及び平滑度などにつ
いて精度高く仕上げる必要もなくなる等、幾多の
優れた利点を有している。[Effects of the invention] As is clear from the above explanation, according to the pressure casting mold according to the invention, there is no leakage of slurry or pressurized water at the mating surfaces of the filter material layers, so there is no burr in the molded product. will never occur. Therefore, there is no need to remove burrs every time before drying of the molded product begins, and the efficiency of the entire casting operation is improved. Furthermore, when manufacturing split molds, it is no longer necessary to precisely finish the flatness and smoothness of the mating surfaces of the split molds, and so on.
第１図は本案構造の主要部を拡大して示す部分
断面図、第２図は従来の成形型を示す側断面図で
ある。第３図は別の実施例を示す全体断面図、第
４図は第３図の部の拡大図である。
２……濾過材層、３……裏打層、４……耐圧補
強層、８，９……割型、１０……弾性材。
FIG. 1 is a partial sectional view showing an enlarged main part of the proposed structure, and FIG. 2 is a side sectional view showing a conventional mold. FIG. 3 is an overall sectional view showing another embodiment, and FIG. 4 is an enlarged view of the portion shown in FIG. 3. 2...filtering material layer, 3...backing layer, 4...pressure-resistant reinforcing layer, 8, 9...split mold, 10...elastic material.
Claims (1)
型を合型してなる圧力鋳込み用成形型において、
割型同志の合せ面のうち濾過材層の全面にシール
樹脂層が塗着形成されると共に、割型同志の合せ
面のうち着肉面に沿つた部分にのみ弾性材を設け
たことを特徴とする圧力鋳込み用成形型。 In a pressure casting mold formed by combining a plurality of split molds each having a porous filter layer on the inner surface,
A sealing resin layer is applied and formed on the entire surface of the filtration material layer among the mating surfaces of the split molds, and an elastic material is provided only on the part of the mating surfaces of the split molds that runs along the inking surface. A mold for pressure casting.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3189689U JPH0525850Y2 (en) | 1989-03-20 | 1989-03-20 | |
| EP19900302956 EP0389234B1 (en) | 1989-03-20 | 1990-03-20 | Liquid-tight slip-casting molds and method for production thereof |
| ES90302956T ES2054239T3 (en) | 1989-03-20 | 1990-03-20 | WATERPROOF MOLDS FOR SLIP MOLDING AND PROCEDURE FOR ITS PRODUCTION. |
| DE1990606875 DE69006875T2 (en) | 1989-03-20 | 1990-03-20 | Liquid-tight slip casting molds and process for their production. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3189689U JPH0525850Y2 (en) | 1989-03-20 | 1989-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02121905U JPH02121905U (en) | 1990-10-04 |
| JPH0525850Y2 true JPH0525850Y2 (en) | 1993-06-30 |
Family
ID=12343782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3189689U Expired - Lifetime JPH0525850Y2 (en) | 1989-03-20 | 1989-03-20 |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0389234B1 (en) |
| JP (1) | JPH0525850Y2 (en) |
| DE (1) | DE69006875T2 (en) |
| ES (1) | ES2054239T3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH078166Y2 (en) * | 1990-06-28 | 1995-03-01 | 株式会社イナックス | Pressure casting type seal structure |
| ES2973377T3 (en) * | 2017-11-13 | 2024-06-19 | Dorst Tech Gmbh & Co Kg | Molded part, casting mold and procedure for molding a green body |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB468641A (en) * | 1936-01-17 | 1937-07-09 | John James | Improvements relating to casting moulds for clay |
| GB792351A (en) * | 1954-12-27 | 1958-03-26 | Shenango China Inc | Dies for pressing green ceramic objects |
| US3993727A (en) * | 1974-12-18 | 1976-11-23 | Wallace-Murray Corporation | Fluid-release mold and the method of manufacturing the same |
| AU2431077A (en) * | 1976-04-30 | 1978-10-19 | Dowty Seals Ltd | Seals and gaskets |
| JPS56124237A (en) * | 1980-03-04 | 1981-09-29 | Toshiba Corp | Method for resin sealing |
| JPS6331708A (en) * | 1986-07-26 | 1988-02-10 | 東陶機器株式会社 | Manufacture of pottery pressure casting molding die |
-
1989
- 1989-03-20 JP JP3189689U patent/JPH0525850Y2/ja not_active Expired - Lifetime
-
1990
- 1990-03-20 ES ES90302956T patent/ES2054239T3/en not_active Expired - Lifetime
- 1990-03-20 EP EP19900302956 patent/EP0389234B1/en not_active Expired - Lifetime
- 1990-03-20 DE DE1990606875 patent/DE69006875T2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ES2054239T3 (en) | 1994-08-01 |
| EP0389234A2 (en) | 1990-09-26 |
| DE69006875T2 (en) | 1994-09-22 |
| DE69006875D1 (en) | 1994-04-07 |
| EP0389234B1 (en) | 1994-03-02 |
| EP0389234A3 (en) | 1991-05-02 |
| JPH02121905U (en) | 1990-10-04 |
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