JPS63183808A - Molding die for ceramic product - Google Patents
Molding die for ceramic productInfo
- Publication number
- JPS63183808A JPS63183808A JP1661287A JP1661287A JPS63183808A JP S63183808 A JPS63183808 A JP S63183808A JP 1661287 A JP1661287 A JP 1661287A JP 1661287 A JP1661287 A JP 1661287A JP S63183808 A JPS63183808 A JP S63183808A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding
- lower mold
- molding surface
- die
- 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
- 238000000465 moulding Methods 0.000 title claims description 53
- 239000000919 ceramic Substances 0.000 title claims description 4
- 238000009423 ventilation Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 description 12
- 230000006835 compression Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 12
- 238000000748 compression moulding Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 4
- 239000004927 clay Substances 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は瓦等窯業製品の成形金型に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a mold for forming ceramic products such as roof tiles.
［従来技術］
一般にかかる成形金型は、所定形状の成形面を上面側に
有する下型と、この下型の成形面に対向する所定形状の
成形面を下面側に有し同下型に対して相対的に進退する
上型を備え、この上型を前記下型に対して相対的に前進
させ同成形面上の成形用素地をこれら両型の成形面間に
て圧縮成形するように構成されている。[Prior art] Generally, such a molding die has a lower mold having a molding surface of a predetermined shape on the upper surface side, and a molding surface of a predetermined shape opposite to the molding surface of the lower mold on the lower surface side, and has a molding surface of a predetermined shape on the lower surface side. The upper mold is configured to move forward and backward relative to the lower mold, and the upper mold is moved relatively to the lower mold to compression mold the molding material on the same molding surface between the molding surfaces of the two molds. has been done.
ところで、この種形式の成形金型においては、前記上型
の下型に対する相対的前進時これら両型の成形面側に密
閉状の空間部が形成される。当該空間部の一部はキャビ
ティとして機能するが、空間部に密封される空気等を金
型外へ排出させないかぎり圧縮成形を行うことは不可能
である。このため、金型内に形成される上記空間部内を
脱気する手段が種々提案され、その−例が実公昭６０−
２４９号公報に示されている。これらの手段は、いずれ
も上型の外部を構成する金型サックの内壁面に上記空間
部を外気に連通させる通気路を形成しているにすぎない
もので、上型の相対的前進時空間部内の空気等を同上型
により通気路を通して押出そうというものである。By the way, in this type of molding die, when the upper mold moves forward relative to the lower mold, a sealed space is formed on the molding surfaces of both molds. Although a part of the space functions as a cavity, it is impossible to perform compression molding unless the air sealed in the space is discharged out of the mold. For this reason, various means for deaerating the space formed in the mold have been proposed, and an example is
It is shown in Publication No. 249. All of these means merely form a ventilation path on the inner wall surface of the mold sack constituting the outside of the upper mold to communicate the above-mentioned space with the outside air. The idea is to force out the air inside the chamber through the ventilation passage using the same die.
［発明が解決しようとする問題点コ
このため、従来の成形金型においては圧縮成形特金型内
の空間部の空気が圧縮され、圧力が高くなると圧縮空気
が粘土等の微粒子を含んだ状態で通気路を瞬時に流れて
排出される。この結果、各型の通気路の周面や成形面の
摩耗が早い。また、金型内の空間部の空気は完全には排
出されずに成形面の各凹所に圧縮空気として残留するた
め、複雑な凹凸形状の成形物を圧縮成形する場合には、
圧縮空気により素地の圧縮が規制され正確な凹凸形状が
発現せず、かつ圧縮空気が素地内に侵入して気泡または
クラッチを生じさせるおそれがある。[Problems to be solved by the invention] For this reason, in conventional molding molds, the air in the space inside the compression molding mold is compressed, and as the pressure increases, the compressed air contains fine particles such as clay. It instantly flows through the ventilation channels and is discharged. As a result, the peripheral surface of the air passage and the molding surface of each mold are rapidly worn. In addition, since the air in the space inside the mold is not completely exhausted and remains as compressed air in each concave part of the molding surface, when compression molding a molded product with a complex uneven shape,
Compression of the substrate is regulated by the compressed air, so that an accurate uneven shape cannot be developed, and the compressed air may enter the substrate and cause bubbles or clutches.
従って、本発明は成形金型内の空間部の空気を同空間部
が形成される始期から積極的に吸引することにより排出
して、上記した種々不具合を解消することにある。Therefore, the present invention aims to eliminate the various problems described above by actively suctioning and discharging the air in the space within the mold from the beginning of the formation of the space.
（問題点を解決するための手段）
本発明は上記した形式の成形金型において、前記両型の
少なくとも一方側に、負圧源に接続される接続孔部を設
けると共に、前記上型の下型に対する相対的前進時これ
ら両型の成形面側に形成される密閉状の空間部と前記接
続孔部とに連通ずる通気路を設けたことを特徴とするも
のである。(Means for Solving the Problems) The present invention provides a molding die of the type described above, in which a connection hole portion connected to a negative pressure source is provided on at least one side of both the molds, and a connection hole portion connected to a negative pressure source is provided under the upper mold. The present invention is characterized in that a ventilation path is provided which communicates with the connection hole and a sealed space formed on the molding surfaces of both molds when the mold is moved forward relative to the mold.
（発明の作用・効果）
かかる構成によれば、負圧源からの吸引作用ににより成
形金型内に形成される空間部の空気を積極的に排出し、
同空間部を速やかに減圧状態にすることができる。この
ため、粘土等の微粒子を含んだ圧縮空気が同空間部から
通気路を高速で流れて排出されるようなことがなく、各
型の通気路の周壁や成形面等の摩擦が抑制される。また
、成形金型の空間部には圧縮空気が残留しておらず圧縮
成形を規則する物が存在していないため、複雑な凹凸形
状の成形物を圧縮成形する場合においても正確な凹凸形
状を発見することができ、かつ圧縮空気が素地内に侵入
して気泡、クラック等を生じさせることがない。(Operations and Effects of the Invention) According to this configuration, the air in the space formed in the molding die is actively discharged by the suction action from the negative pressure source,
The space can be quickly brought into a depressurized state. This prevents compressed air containing fine particles such as clay from flowing through the air passage at high speed and being discharged from the same space, and friction between the surrounding walls and molding surfaces of the air passage of each mold is suppressed. . In addition, since there is no compressed air left in the mold space and there is nothing that regulates compression molding, accurate uneven shapes can be achieved even when compression molding molded products with complex uneven shapes. Compressed air will not enter the substrate and cause bubbles, cracks, etc.
（実施例）
以下本発明を図面に基づいて説明するに、第１図には本
発明の第１実施例にかかる成形金型が示されている。当
該成形金型１０Ａは下型１１と上型１２とからなる瓦の
成形用のもので、下型１１は下型本体１１ａと同本体１
１ａの左右各側面にポルＩ・にて取付けられた一対の側
板１１ｂ、１１Ｃとにより構成され、かつ上型１２は上
型本体１２ａと同本体１２ａの前後各側面にボルトにて
取付けられた同一形状の一対の金型サック１２ｂ。(Example) The present invention will be described below based on the drawings. FIG. 1 shows a molding die according to a first example of the present invention. The molding die 10A is for molding a roof tile and is composed of a lower mold 11 and an upper mold 12, and the lower mold 11 has a lower mold main body 11a and a lower mold main body 1.
The upper mold 12 is composed of a pair of side plates 11b and 11C attached to each of the left and right sides of the upper mold body 12a with bolts, and the upper mold 12 is composed of a pair of side plates 11b and 11C attached to each of the left and right sides of the upper mold body 12a with bolts. A pair of shaped mold sacks 12b.
１２ｃ（但し一方のみを図示）とにより構成されている
。これら両型本体においては、下型本体１１ａの上面側
に所定形状の成形面ｌｉｄが形成され、かつ上型本体１
２ａの下面側に上記成形面１１ｄに対向する所定形状の
成形面１２ｄが形成されている。両側板１１ｂ、ｌｌｃ
は下型本体１１ａの左右両側にて成形面ｌｉｄより所定
長上方へ突出し、また両金型サック１２ｂ、１２ｃは上
型本体１２ａの前後両側にて成形面１２ｄより所定長下
方へ突出している。下型１１は第２図に示すプレス機２
ＯＡのベッド２１に固定的に組付けられ、かつ−Ｅ型１
２はラム２２に固定的に組付けられる。この組付は状態
においては、上型１２の成形面１２ｄが第１図（ａ＞に
示すごとく下型１１の成形面ｌｉｄに対向し、かつ油圧
シリンダ２３の作用にて上下方向に進退可能である。油
圧シリンダ２３を駆動してラム２２を下動させ上型１２
を下型１１に対して前進させると、上型１２の各金型サ
ック１２ｂ、１２ｃが下型１１の前後両側に嵌合すると
ともに、同両側面を摺動しつつ下動する。各金型サック
１２ｂ、１２ｃが下型］１に嵌合した時点において、両
型１１，１．２の成形面ｌｉｄ、１２ｄ間に第１図（ｂ
）に示すように密閉状の空間部Ｒが形成され、上型１２
がさらに下動すると第１図（Ｃ）に示すようにキャビテ
ィが形成される。12c (however, only one is shown). In both of these mold bodies, a molding surface lid of a predetermined shape is formed on the upper surface side of the lower mold body 11a, and the upper mold body 1
A molding surface 12d having a predetermined shape and facing the molding surface 11d is formed on the lower surface side of the molding surface 2a. Both side plates 11b, llc
protrude above the molding surface lid by a predetermined length on both left and right sides of the lower mold body 11a, and both mold sacks 12b and 12c protrude downward by a predetermined length from the molding surface 12d on both the front and rear sides of the upper mold main body 12a. The lower mold 11 is a press machine 2 shown in FIG.
Fixedly assembled to the bed 21 of the OA, and -E type 1
2 is fixedly assembled to the ram 22. In this assembly state, the molding surface 12d of the upper mold 12 faces the molding surface lid of the lower mold 11 as shown in FIG. Yes, by driving the hydraulic cylinder 23 and moving the ram 22 downward, the upper mold 12
When the mold sacks 12b and 12c of the upper mold 12 are moved forward relative to the lower mold 11, the mold sacks 12b and 12c of the upper mold 12 fit into both the front and rear sides of the lower mold 11, and move downward while sliding on both sides thereof. 1 (b
), a sealed space R is formed, and the upper mold 12
When it moves further down, a cavity is formed as shown in FIG. 1(C).
しかして、本実施例の成形金型１０Ａにおいては、下型
１１の一方の側板１１ｂに貫通孔１１ｅが設けられてい
る。この貫通孔１１ｅは下型本体１１ａの成形面ｌｉｄ
より所定高さ上方に位置していて、その内端が両型１１
．．１２にて形成される空間部Ｒに開口し、かつその外
端が外側に開口している、また、側板１１ｂの外側には
、貫通孔１１ｅの外端に対向してパイプ状の継手１１ｆ
が設けられている。従って、貫通孔ｌｉｅは成形金型１
０Ａ内の空間部Ｒと継手１１ｆとを連通する連通路とし
て機能し、以下貫通孔１１ｅを通気路ｌｉｅと称する。Thus, in the molding die 10A of this embodiment, a through hole 11e is provided in one side plate 11b of the lower mold 11. This through hole 11e is the molding surface lid of the lower mold body 11a.
It is located at a predetermined height above the mold 11, and its inner end is located above both molds 11.
．． ．． A pipe-shaped joint 11f is provided on the outside of the side plate 11b, facing the outer end of the through hole 11e.
is provided. Therefore, the through hole lie is formed in the mold 1.
The through hole 11e functions as a communication path that communicates the space R in 0A and the joint 11f, and is hereinafter referred to as a ventilation path lie.
かかる下型１１においては、プレス機２０のベッド２１
に組付けられた後継手１１ｆに第１接続管３１が接続さ
れる。第１接続管３１は第２接続管３２および切換弁３
３を介して真空ポンプ３４またはブロアーに接続されて
いる。In such a lower mold 11, a bed 21 of a press machine 20 is used.
The first connecting pipe 31 is connected to the successor arm 11f assembled to the. The first connecting pipe 31 connects to the second connecting pipe 32 and the switching valve 3.
3 to a vacuum pump 34 or a blower.
切換弁３３は３ボ一ト２位置電磁切換弁であり、非通電
時自己復帰していて下型１１の通気路１１ｅを大気に連
通させ、通電時切換動作して通気路１１ｅを真空ポンプ
３４に連通させる。なお、切換弁３３に対しては、プレ
ス機２０Ａのラム２２が所定量下降した時点で通゛電さ
れるとともにさらに所定量下降した時点で通電が停止さ
れる構成になっている。The switching valve 33 is a 3-point, 2-position electromagnetic switching valve, which returns automatically when not energized to connect the air passage 11e of the lower mold 11 to the atmosphere, and switches when energized to connect the air passage 11e to the vacuum pump 34. communicate with. The switching valve 33 is configured to be energized when the ram 22 of the press 20A has descended by a predetermined amount, and to be de-energized when the ram 22 of the press 20A has further descended by a predetermined amount.
かかる構成の成形金型１０Ａを用いて瓦を圧縮成形する
には、同金型１０Ａを第２図に示すように組付けた状態
において素地Ｔを第１図（ａ＞に示すように下型本体１
１ａの成形面ｌｉｄに載置した後、プレス機２ＯＡの駆
動を開始する。しかして、油圧シリンダ２３を始動して
ラム２２を下動させるとこれと一体的に上型１２が下降
し、同上型１２が所定量下降すると両金型サック１２ｂ
。In order to compression mold a roof tile using the molding die 10A having such a configuration, the mold 10A is assembled as shown in FIG. Main body 1
After placing it on the molding surface lid of 1a, driving of the press machine 2OA is started. When the hydraulic cylinder 23 is started and the ram 22 is moved downward, the upper mold 12 is lowered together with this, and when the upper mold 12 is lowered by a predetermined amount, both mold sacks 12b
.
１２ｃが下型１１の前後両側面に嵌合し、同時に切換弁
３３が通電されて切換動作し下型１１の通気路ｌｉｅを
真空ポンプ３４に連通させる。この結果、両型１１．１
２間の空間部Ｒの空気が吸引されて同空間部Ｒが高減圧
状態になり、さらに上型１２がさらに下降してもこの高
減圧状態が維持される。上型１２はさらに所定量下降し
た時点で素地Ｔを押圧して第１図（ｃ）に示すように圧
縮成形し、素地Ｔを圧縮成形物ｔとなす。同時に切換弁
３３に対する通電が停止されて同切換弁３３ぽ自己復帰
し、通気路ｌｉｅは大気に開放される。12c are fitted to both the front and rear sides of the lower mold 11, and at the same time, the switching valve 33 is energized and operates to communicate the air passage lie of the lower mold 11 with the vacuum pump 34. As a result, both types 11.1
The air in the space R between the molds 1 and 2 is sucked, and the space R becomes a highly reduced pressure state, and even if the upper die 12 is further lowered, this high reduced pressure state is maintained. When the upper mold 12 has further descended by a predetermined amount, it presses the base material T to perform compression molding as shown in FIG. 1(c), thereby forming the material material T into a compression molded product t. At the same time, the energization to the switching valve 33 is stopped, the switching valve 33 returns to its original position, and the ventilation path lie is opened to the atmosphere.
なお、圧縮成形物ｔは成形金型１０Ａ内から取出された
後乾燥され、さらに常法により焼成されて製品となる。Note that the compression molded product t is taken out from the mold 10A, dried, and further fired by a conventional method to become a product.
このように、本実施例にかかる成形金型１０Ａによれば
、同金型１０Ａ内の空間部Ｒを高減圧に吸引しかつこれ
を維持することができるため、圧縮成形特粘土等の微粒
子を含む圧縮空気が空間部Ｒから通気路ｌｉｅを高速で
流れてこれらを摩耗するようなことがない、また、空間
部Ｒには圧縮空気等圧縮成形を規制する物が存在しない
ため、複雑な凹凸形状の成形物を圧縮成形する場合にお
いても正確な凹凸形状を発現させることができ、さらに
また圧縮空気が素地Ｔ内に侵入して成形物ｔに気泡やク
ラックを生じさせることがない。As described above, according to the molding die 10A according to this embodiment, the space R in the mold 10A can be sucked to a high vacuum pressure and this can be maintained, so that fine particles such as compression molded special clay can be removed. The compressed air contained therein will not flow from the space R through the air passages lie at high speed and wear them out, and since there is no compressed air or anything in the space R that restricts compression molding, there will be no complicated unevenness. Even when compression molding a molded product, an accurate uneven shape can be obtained, and furthermore, compressed air will not enter the base material T and cause bubbles or cracks in the molded product t.
第３図には本発明の第２実施例に係る成形金型１０Ｂが
示されている。当該成形金型１０Ｂは下型１３．上型１
４および開閉弁機構１５を備えている。下型１３は第１
実施例の下型１１と同様下型本体１３ａおよび同本体１
３ａの左右各側面にボルトにて取付けられた一対の側板
１３ｂ、１３Ｃからなり、かつ上型１４は第１実施例の
上型１２と同様上型本体１４ａおよび同本体１４ａの前
後各側面にボルトに取付けられた同一形状の一対の金型
サック１４ｂ、１４ｃからなる。下型１３においては、
下型本体１３ａに左右方向へ延びて両端が開口しかつそ
の中央部から分岐して下方へ延びて下端が開口する連通
孔１３ｅ１が形成されているとともに、各側板１３ｂ、
１３ｃの内壁に複数の縦溝１３ｅ２と横＄ １３ ｅ
ｓが形成されている。各縦溝１３ｅ２は下型本体１３ａ
の成形面１３ｄ上に臨むとともに横溝１３ｅ３に臨み、
かつ連通孔１３ｅ１の両端が各側板１３ｂ、１３ｃの横
溝１３ｅ３の中央部に開口している。上型１４において
も、上型本体１４ａに連通孔１４ｅＩが形成されるとと
もに、各金型サック１４ｂ、１４ｃの内壁に複数の縦溝
１４ｅ２と横溝１４ｅ３が形成されている。連通孔１４
ｅ１は前後方向へ延びて各金型サック１４ｂ、１４ｃの
横＄ １４ ｅ３に開口し、かつ上下方向に分岐して延
び°ζその上端が開口するとともに、その下端が組付孔
１４ｇに開口している。また、各１１？１１１４ｅ２は
上型本体１４ａの成形面１４ｄの下方に臨むとともに、
横溝１４ｅ３に臨む。FIG. 3 shows a molding die 10B according to a second embodiment of the present invention. The molding die 10B is a lower die 13. Upper mold 1
4 and an on-off valve mechanism 15. The lower mold 13 is the first
Similar to the lower mold 11 of the embodiment, a lower mold main body 13a and the same main body 1
The upper die 14 consists of a pair of side plates 13b and 13C attached to the left and right sides of the upper die 3a with bolts, and the upper die 14 has bolts attached to the upper die main body 14a and the front and rear sides of the main body 14a, similar to the upper die 12 of the first embodiment. It consists of a pair of mold sacks 14b and 14c of the same shape attached to the mold sacks 14b and 14c. In the lower mold 13,
A communication hole 13e1 is formed in the lower die main body 13a, extending in the left-right direction, opening at both ends, branching from the center thereof, extending downward, and opening at the lower end, and each side plate 13b,
Multiple vertical grooves 13e2 and horizontal grooves 13e on the inner wall of 13c
s is formed. Each vertical groove 13e2 is the lower die main body 13a.
facing onto the molding surface 13d and facing the lateral groove 13e3,
Both ends of the communication hole 13e1 are open at the center of the lateral groove 13e3 of each side plate 13b, 13c. In the upper mold 14 as well, a communication hole 14eI is formed in the upper mold main body 14a, and a plurality of vertical grooves 14e2 and lateral grooves 14e3 are formed in the inner wall of each mold sack 14b, 14c. Communication hole 14
e1 extends in the front-rear direction and opens at the side of each mold sack 14b, 14c, and branches in the vertical direction, with its upper end opening and its lower end opening into the assembly hole 14g. ing. Moreover, each 11?1114e2 faces below the molding surface 14d of the upper mold body 14a, and
Facing horizontal ditch 14e3.
しかして、下型１３の下面には連通孔１３ｅ４を有する
下面板１３ｆが固着されていて１両速通孔１３ｅ１．１
３ｅ４がシール部材１６ａを介して気密的に接続されて
いる。また、上型１４の上端には連通孔１４ｅ４を有す
る上面板１４ｆが固着されていて、両速通孔１４ｅｔ
、１４ｅ４がシール部材１６ｂを介して気密的に接続さ
れている。Thus, a lower plate 13f having a communication hole 13e4 is fixed to the lower surface of the lower die 13, and a two-speed communication hole 13e1.1 is fixed to the lower surface of the lower die 13.
3e4 are airtightly connected via the seal member 16a. Further, a top plate 14f having a communication hole 14e4 is fixed to the upper end of the upper mold 14, and a two-speed communication hole 14et is fixed to the upper end of the upper die 14.
, 14e4 are airtightly connected via a seal member 16b.
従って、各型１３．１４における連通孔１３ｅｌ 。Therefore, the communication hole 13el in each mold 13.14.
１４ｅ１および各溝１３ｅ２．１３ｅ３．１・４ｅｚ、
１４ｅ３が本発明における通気路を楕成し、かつ各面板
１３ｆ、１４ｆが本発明における接続孔部を構成する。14e1 and each groove 13e2.13e3.1/4ez,
14e3 constitutes an oval air passage in the present invention, and each face plate 13f, 14f constitutes a connection hole portion in the present invention.
各面板１３ｆ、１４ｆの連通孔１３ｅ４．１４ｅ４には
切換弁３３を介して真空ポンプ３４が接続されている。A vacuum pump 34 is connected to the communication holes 13e4, 14e4 of each face plate 13f, 14f via a switching valve 33.
開閉弁機構１５は上型１４の組付孔１４ｇに気密的かつ
上下動可能に組付けた弁体１５ａと、弁体１５ａを下方
へ付勢して弁座１５ｂからＭ間させる圧縮スプリング１
５ｃとを備えている。弁体１５ａは上型１４の素地Ｔに
対する圧縮前においては第３図（ａ＞、（ｂ）に示すよ
うに弁座１５ｂから離間し、空間部Ｒを真空ポンプ３４
に連通させて高減圧状態とする。また、弁体１５ａはＬ
型１４による素地Ｔに対する圧縮直前において素地Ｔの
上面に当接し、圧縮スプリング１５ｃに抗して上動させ
て弁座１５ｂに着座する。これにより、空間部Ｒは真空
ポンプ３４との連通を断たれ、第３図（ｃ）に示す状態
で圧縮成形がなされる。The on-off valve mechanism 15 includes a valve body 15a that is airtightly and vertically movably assembled in the assembly hole 14g of the upper mold 14, and a compression spring 1 that urges the valve body 15a downward and moves it from the valve seat 15b to a distance M.
5c. Before compressing the base T of the upper die 14, the valve body 15a is separated from the valve seat 15b as shown in FIGS.
to create a high vacuum state. Further, the valve body 15a is L
Immediately before the mold 14 compresses the base T, it comes into contact with the upper surface of the base T, moves upward against the compression spring 15c, and seats on the valve seat 15b. As a result, communication between the space R and the vacuum pump 34 is cut off, and compression molding is performed in the state shown in FIG. 3(c).
従って、当該成形金型１０Ｂにおいても第１実施例の成
形金型１０Ａと同様の効果を奏する。なお、かかる開閉
弁機構１５を下型１３側に組付けてもよい。Therefore, the molding die 10B has the same effect as the molding die 10A of the first embodiment. Note that such an on-off valve mechanism 15 may be assembled to the lower mold 13 side.
なお、第４図にはプレス機２０Ｂに負圧発生装置３５を
設けた例が示されている。負圧発生装置３５はプレスｌ
１２０Ｂのヘッド２４の両側に一対設けられており、同
へラド２４に固定したシリンダ３５ａ、シリン、ダ３５
ａ内を気密的に摺動するピストン３５ｂ、シリンダ３５
ａの大気室ｒ、に介装されてピストン３５ｂを上方へ付
勢する小径の圧縮スプリング３５ｃを備えるとともに、
ピストン３５ｂに組付けられてシリンダ３５ａの大気室
ｒｌを摺動可能に貫通するピストンロッド３５ｄ、ピス
トンロッド３５ｄの下端部に支承された大径の圧縮スプ
リング３５ｅを備えている。かかる負圧発生装置３５に
おいてはシリンダ３５ａの負圧発生室ｒ２が成形金型１
０Ｃの各型１７，１８の通気路１７ｅ、１８ｅに連通し
ており、油圧シリンダ２５の非作動時ラム２６はそのア
ーム部２６ａをピストンロッド３５ｄの係合部３５ｆに
係合させた状態で上動している。従って、ピストンロッ
ド３５ｄも上動している。しかして、圧縮成形すべく油
圧シリンダ２５を始動させると、ラム２６が下動してそ
のアーム部２６ａがピストン口・ラド３５ｄの係合部３
５ｆから離れるとともに、大径の圧縮スプリング３５ｅ
の上端に当接し、これを圧縮させようとする。このため
、ビス１〜ンロツド３５ｄおよびピストン３５ｂが小径
の圧縮スプリング３５ｃに抗して下動する。この際、負
圧発生室ｒ２に負圧が発生し、この負圧が成形金型１０
Ｃ内の空間部Ｒに付与される。また、圧縮成形後油圧シ
リンダ２５を上動させると、ビスＩ、ンロツド３５ｄに
対する下方への押圧力が解除され、同ロッド３５ｄおよ
びピストン３５ｃは上動して復帰する。なお、符号３５
ｇは電磁ソレノイド、符号３５ｈは同ソレノイド３５ｇ
の作用で進退して負圧発生室ｒ２を開閉する弁体である
。Note that FIG. 4 shows an example in which the press machine 20B is provided with a negative pressure generating device 35. The negative pressure generator 35 is a press l
A pair of cylinders 35a are provided on both sides of the head 24 of the 120B, and are fixed to the same head 24.
Piston 35b and cylinder 35 that slide airtight inside a
A small-diameter compression spring 35c is provided in the atmospheric chamber r of a and urges the piston 35b upward;
The piston rod 35d is assembled to the piston 35b and slidably passes through the atmospheric chamber rl of the cylinder 35a, and a large-diameter compression spring 35e is supported at the lower end of the piston rod 35d. In such a negative pressure generating device 35, the negative pressure generating chamber r2 of the cylinder 35a is connected to the molding die 1.
It communicates with the ventilation passages 17e and 18e of the 0C molds 17 and 18, and when the hydraulic cylinder 25 is not in operation, the ram 26 is raised with its arm portion 26a engaged with the engaging portion 35f of the piston rod 35d. It's moving. Therefore, the piston rod 35d is also moving upward. When the hydraulic cylinder 25 is started for compression molding, the ram 26 moves downward and its arm portion 26a is attached to the engaging portion 3 of the piston opening/rad 35d.
5f and a large diameter compression spring 35e.
It touches the upper end of and attempts to compress it. Therefore, the screws 1 to 35d and the piston 35b move downward against the small diameter compression spring 35c. At this time, negative pressure is generated in the negative pressure generation chamber r2, and this negative pressure is applied to the molding die 10.
It is given to the space R in C. Further, when the hydraulic cylinder 25 is moved upward after compression molding, the downward pressing force on the screw I and the connecting rod 35d is released, and the rod 35d and the piston 35c move upward and return to their original positions. In addition, the code 35
g is an electromagnetic solenoid, code 35h is the same solenoid 35g
This is a valve body that moves back and forth to open and close the negative pressure generating chamber r2.
第１図は本発明の第１実施例に係る成形金型の縦断面を
示し、同図（ａ）は上型が上動位置にある場合、同図（
ｂ）は上型が所定量下動した位置にある場合、同図（Ｃ
）は上型が圧縮成形位置まで下動した場合の縦断面図、
第２図は同成形金型を組付けた状態のプレス機の概略構
成図、第３図は本発明の第２実施例にかかる成形金型の
縦断面を示し、同図（ａ）は第１図（ｂ＞に対応する縦
断面図、同図（ｂ）は第３図（ａ＞の矢印ｂ−ｂ線方向
の縦断面図、同図（Ｃ）は第１図（ｃ）に対応する縦断
面図、第４図はプレス機に設けた負圧発生装置の縦断面
図である。
符号の説明
１０Ａ、ＩＯＢ、ＩＯＣ・・・成形金型、１１゜１３．
１７・・・下型、１２．１４．１８・・・上型、ｌｉｄ
、１２ｄ、１３ｄ、１４ｄ・・・成形面、１１ｅ、１２
ｅ、’１３ｅ、１４ｅ ・・−通気路、２０．〜，２０
Ｂ・・・プレス機、３３・・・電磁切換弁、３４・・・
真空ポンプ。
出願人 株式会社 宮園製作所
代理人 弁理士 長 谷 照 −（外１名）
第３図 ｂ
°ｉ
１ （ｌ Ｂ・・・成形金型
１３・・、Ｔ型
１４・・・上型
１３ｄ、１４ｄ・・・成形面
１３ｅ、１４ｅ・−・通気路
３３・・・ｔｌｉＩ６７１１１弁
３４・・・真空ポンプFIG. 1 shows a longitudinal section of a molding die according to a first embodiment of the present invention, and FIG.
b) is the same figure (C
) is a vertical cross-sectional view when the upper mold moves down to the compression molding position,
FIG. 2 is a schematic configuration diagram of the press machine with the molding die assembled therein, FIG. Figure 1 (b) is a vertical cross-sectional view in the direction of the arrow b-b in Figure 3 (a>), Figure (C) is a vertical cross-sectional view corresponding to Figure 1 (c). Fig. 4 is a longitudinal cross-sectional view of a negative pressure generating device provided in a press machine.Description of symbols 10A, IOB, IOC...Molding mold, 11° 13.
17...Lower mold, 12.14.18...Upper mold, lid
, 12d, 13d, 14d...molding surface, 11e, 12
e, '13e, 14e...-ventilation path, 20. ~,20
B...Press machine, 33...Solenoid switching valve, 34...
Vacuum pump. Applicant Miyazono Seisakusho Co., Ltd. Agent Patent attorney Teru Hase - (1 other person) ...Molding surfaces 13e, 14e...Air passage 33...tliI67111 valve 34...Vacuum pump
Claims (1)
成形面に対向する所定形状の成形面を下面側に有し同下
型に対して相対的に進退する上型を備え、この上型を前
記下型に対して相対的に前進させ同成形面上の成形用素
地をこれら両型の成形面間にて圧縮成形する瓦等窯業製
品の成形金型において、前記両型の少なくとも一方側に
、負圧源に接続される接続孔部を設けると共に、前記上
型の下型に対する相対的前進時これら両型の成形面側に
形成される密閉状の空間部と前記接続孔部とに連通する
通気路を設けたことを特徴とする窯業製品の成形金型。A lower mold having a molding surface of a predetermined shape on the upper surface side, and an upper mold having a molding surface of a predetermined shape opposite to the molding surface of the lower mold on the lower surface side and moving back and forth relative to the lower mold, In a mold for a ceramic product such as a tile, the upper mold is advanced relative to the lower mold and the molding base on the same molding surface is compression-molded between the molding surfaces of the two molds. A connection hole connected to a negative pressure source is provided on at least one side, and a sealed space formed on the molding surface side of both molds when the upper mold advances relative to the lower mold and the connection hole. A mold for forming a ceramic product, characterized by having a ventilation passage communicating with the parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1661287A JPS63183808A (en) | 1987-01-27 | 1987-01-27 | Molding die for ceramic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1661287A JPS63183808A (en) | 1987-01-27 | 1987-01-27 | Molding die for ceramic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63183808A true JPS63183808A (en) | 1988-07-29 |
Family
ID=11921146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1661287A Pending JPS63183808A (en) | 1987-01-27 | 1987-01-27 | Molding die for ceramic product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63183808A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6154567A (en) * | 1984-08-24 | 1986-03-18 | Hitachi Ltd | Method and device for simulation |
| JPS6164409A (en) * | 1984-09-06 | 1986-04-02 | 株式会社 石川時鉄工所 | Method and device for molding ceramic product, such as roof tile, tile, brick, insulator, etc. |
| JPS61217212A (en) * | 1985-03-23 | 1986-09-26 | 石川 惠子 | Molding die for ceramic product foundation |
-
1987
- 1987-01-27 JP JP1661287A patent/JPS63183808A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6154567A (en) * | 1984-08-24 | 1986-03-18 | Hitachi Ltd | Method and device for simulation |
| JPS6164409A (en) * | 1984-09-06 | 1986-04-02 | 株式会社 石川時鉄工所 | Method and device for molding ceramic product, such as roof tile, tile, brick, insulator, etc. |
| JPS61217212A (en) * | 1985-03-23 | 1986-09-26 | 石川 惠子 | Molding die for ceramic product foundation |
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