JPS623699B2 - - Google Patents
Info
- Publication number
- JPS623699B2 JPS623699B2 JP53000777A JP77778A JPS623699B2 JP S623699 B2 JPS623699 B2 JP S623699B2 JP 53000777 A JP53000777 A JP 53000777A JP 77778 A JP77778 A JP 77778A JP S623699 B2 JPS623699 B2 JP S623699B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- gas
- gap
- hole
- seal
- 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
Links
Landscapes
- Casting Devices For Molds (AREA)
- Gasket Seals (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
【発明の詳細な説明】
本発明は、ガス硬化式造型機の改良に関するも
ので、特にその分割面のシール構造に係るもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a gas curing molding machine, and particularly to a sealing structure of a dividing surface thereof.
ガス硬化式造型機のコールドボツクス法では、
造型用砂を硬化させるのに使う硬化ガスには例え
ばトリエチルアミンと空気との混合体があるが、
これには毒性があるので、このガスの洩れを防ぐ
ため、従来は鋳型の分割面にパツキングを装着し
てシールしていた。 In the cold box method of gas curing molding machine,
The curing gas used to harden modeling sand includes, for example, a mixture of triethylamine and air.
Since this gas is toxic, conventionally, to prevent this gas from leaking, packing was attached to the split surface of the mold to seal it.
しかし、この従来の装置ではパツキングの劣化
あるいは鋳物砂等をかみこむと、シールが不完全
となつて有毒ガスが外部に漏洩する欠点があつ
た。 However, this conventional device has the disadvantage that if the packing deteriorates or if molding sand or the like gets caught in it, the seal becomes incomplete and toxic gas leaks to the outside.
本発明は、ガス硬化式造型機における上記の欠
点を解消しようとするもので、以下のように構成
する。すなわち鋳型または鋳型を収納した鋳型ホ
ルダーの分割面に複数条のシール部を設け、各シ
ール部の間に間隙部を形成し、その間隙部からそ
の鋳型又は鋳型ホルダーの外部へ通ずる通孔を設
け、その通孔に負圧発生装置を接続したガス硬化
式造型機である。 The present invention aims to eliminate the above-mentioned drawbacks of gas curing molding machines, and is configured as follows. That is, a plurality of seal parts are provided on the dividing surface of the mold or a mold holder that houses the mold, a gap is formed between each seal part, and a through hole is provided from the gap to the outside of the mold or mold holder. This is a gas curing molding machine with a negative pressure generator connected to its through hole.
以下に本発明の実施例を図面に基いて説明す
る。第１図に示すように、固定側と可動側の一対
からなる鋳型ホルダー２１，２２には鋳型２３，
２３を嵌合止着しており、この鋳型２３，２３と
ともに同一垂直面上で左右に二分割されている。
上記鋳型ホルダー２１，２２と鋳型２３，２３の
分割面の上部中心部には中子成形用の空所２４に
達する共通の充填口２５が形成され、また、上記
鋳型２３，２３の側壁に多数の通気口２６が形成
され、該通気口２６の空所２４側には多数の小孔
を有するペントプラグ２７が嵌挿されている。鋳
型２３，２３の外側壁とこれが対向する鋳型ホル
ダー２１，２２の内側壁との間にはチヤンパー２
８が形成されるとともに、鋳型ホルダー２１，２
２の上記側壁には排気口２９が形成され、該排気
口２９はガス浄化装置（図示せず）に接続されて
いる。上記鋳型ホルダー２１，２２の分割面２，
１２に二条のシール部４，５，４′，５′を設ける
とともに、該シール部４，５，４′，５′間の分割
面２，１２に間隙部６を設け、該間隙部６を外部
に設けた負圧発生器に接続する。 Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, a mold 23,
23 is fitted and fixed, and together with the molds 23, 23, it is divided into left and right halves on the same vertical plane.
A common filling port 25 that reaches the cavity 24 for core molding is formed in the upper center of the dividing surface of the mold holders 21, 22 and the molds 23, 23, and a large number of filling ports are formed on the side walls of the molds 23, 23. A vent hole 26 is formed, and a pent plug 27 having a large number of small holes is inserted into the cavity 24 side of the vent hole 26. A damper 2 is provided between the outer walls of the molds 23, 23 and the inner walls of the mold holders 21, 22, which are opposed to each other.
8 is formed, and the mold holders 21, 2
An exhaust port 29 is formed in the side wall of 2, and the exhaust port 29 is connected to a gas purification device (not shown). The dividing surface 2 of the mold holders 21 and 22,
12 is provided with two seal portions 4, 5, 4', 5', and a gap 6 is provided in the dividing surfaces 2, 12 between the seal portions 4, 5, 4', 5'. Connect to an external negative pressure generator.
即ちシール部４，５，４′，５′は第２図に示す
ように、固定側鋳型ホルダー２１の分割面２には
連続形成された凹溝３０，３１内に植設した弾発
力に富むパツキング４，４′を挿入し、第３図に
示すように可動鋳型ホルダー２２の分割面１２に
は、上記パツキング４，４′に対応して連続して
突条５，５′が形成されている。また、上記突条
５と突条５′間には連続して間隙部６が形成され
ている。そして上記間隙部６には通孔８が設けら
れ、その通孔８は吸引ポンプ等からなる負圧発生
器３３を介してガス浄化装置（図示せず）に接続
されている。なお第３図に仮想線で示したガツシ
ングヘツド３４は、鋳型ホルダー２１，２２との
当接面に、パツキング３５，３５′が前述したパ
ツキング４，４′と同様に植設されて、該当接面
を密封している。 That is, as shown in FIG. 2, the seal parts 4, 5, 4', 5' are implanted in grooves 30, 31 continuously formed in the dividing surface 2 of the stationary mold holder 21. As shown in FIG. 3, protrusions 5, 5' are continuously formed on the dividing surface 12 of the movable mold holder 22 in correspondence with the packings 4, 4'. ing. Further, a gap 6 is continuously formed between the protrusion 5 and the protrusion 5'. A through hole 8 is provided in the gap 6, and the through hole 8 is connected to a gas purification device (not shown) via a negative pressure generator 33 such as a suction pump. In addition, the gashing head 34 shown by the imaginary line in FIG. The contact surface is sealed.
なお、上記間隙部６は連続して設けられている
が、上記突条５，５′間において不連続に設け各
間隙部６に通孔８をそれぞれ設けて、負圧発生器
３３に接続される構造としてもよい。 Although the gaps 6 are provided continuously, they are discontinuously provided between the protrusions 5 and 5', and each gap 6 is provided with a through hole 8, which is connected to the negative pressure generator 33. It is also possible to have a structure in which
次に上記実施例の作用について説明する。ブロ
ーヘツド（図示せず）から充填口２５を介して、
鋳型２３の空所２４に鋳砂（図示せず）を充填後
ガツシングヘツド３４を下降させ、鋳型ホルダー
２１，２２の上面に圧着する。次にガツシングヘ
ツド３４に硬化ガス（図示せず）を供給すると、
該硬化ガスは充填口２５を介して空所２４内の鋳
砂粒間を通り、該鋳砂を硬化しつつその大部分は
ペントプラグ２７、通気口２６、チヤンパー２
８、排気口２９へと通過し、ガス浄化装置（いづ
れも図示せず）を経て大気中に放出させる。この
ようにして適当な時間硬化ガスの供給（吸込み）
が行なわれて鋳砂が硬化される。そして、このよ
うな鋳型造型動作を継続して繰り返すと、シール
部４，５，４′，５′に砂噛み等を生じ、シール性
が損われて硬化ガスが間隙部６内に漏洩すること
がある。ところが間隙部６は、通孔８を介して負
圧発生器３３に接続されて常時負圧に保たれてい
るため、上記漏洩ガスは通孔８、負圧発生器３
３、ガス浄化装置を経て大気に無害の状態で放出
されることになる。 Next, the operation of the above embodiment will be explained. From the blow head (not shown) through the filling port 25,
After filling the cavity 24 of the mold 23 with molding sand (not shown), the gushing head 34 is lowered and pressed onto the upper surfaces of the mold holders 21 and 22. Next, when curing gas (not shown) is supplied to the gassing head 34,
The hardening gas passes between the sand grains in the cavity 24 through the filling port 25, hardening the sand, and most of it passes through the pent plug 27, the vent 26, and the damper 2.
8. The gas passes through the exhaust port 29 and is discharged into the atmosphere via a gas purification device (none of which is shown). In this way, curing gas is supplied (suction) for an appropriate time.
is carried out to harden the casting sand. If such a mold making operation is continuously repeated, sand particles etc. will occur in the seal parts 4, 5, 4', 5', the sealing performance will be impaired, and the curing gas will leak into the gap 6. There is. However, since the gap 6 is connected to the negative pressure generator 33 through the through hole 8 and is always maintained at a negative pressure, the leaked gas flows through the through hole 8 and the negative pressure generator 3.
3. It will be released into the atmosphere in a harmless state through a gas purification device.
本発明は以上説明したように構成して、鋳型又
は鋳型を収納したホルダーの分割面に複数条のシ
ール部を設け、各シール部の間に隙間部を形成
し、隙間部は通孔を介して負圧発生装置に接続し
てある。このため内側のシール部が劣化したり鋳
砂等をかんだ場合でも、有毒硬化ガスは間隙部を
介して通孔から負圧発生装置により積極的に吸引
されるので、大気中へ漏洩しない。また外側のシ
ール部のシールがそこなわれた場合は、侵入した
大気は間隙部を介して通孔から吸引されるので、
大気がガス内へ混入することはない。更に内外の
シール部がともにそこなわれた場合でも、侵入し
た大気と漏洩したガスの相方を負圧発生装置によ
つて吸引させるので、有毒硬化ガスが外部へ漏洩
することを防止できる。 The present invention is configured as described above, and a plurality of seal parts are provided on the dividing surface of a mold or a holder that houses the mold, and a gap is formed between each seal part, and the gap is formed through a through hole. and is connected to a negative pressure generator. Therefore, even if the inner seal deteriorates or gets caught in casting sand or the like, the toxic hardening gas is actively sucked through the gap by the negative pressure generating device from the through hole, so it will not leak into the atmosphere. In addition, if the seal on the outside seal is damaged, the air that has entered will be sucked out through the hole through the gap.
Atmospheric air is not mixed into the gas. Furthermore, even if both the inner and outer seals are damaged, the negative pressure generator sucks the invading atmosphere and the leaked gas, thereby preventing toxic hardened gas from leaking to the outside.
第１図は本発明のガス硬化式造型機を示す要部
正面断面図、第２図および第３図は第１図におけ
るＡ―Ａ視およびＢ―Ｂ視側面図、第４図は分割
面の部分拡大断面図である。
２，１２…分割面、４，５，４′，５′…シール
部、６…間隙部、８…通孔、２１…鋳型ホルダ
ー、２３…鋳型、３３…負圧発生装置。
Fig. 1 is a front cross-sectional view of main parts showing the gas curing molding machine of the present invention, Figs. 2 and 3 are side views taken along A-A and B-B in Fig. 1, and Fig. 4 is a dividing plane. FIG. 2, 12... Divided surface, 4, 5, 4', 5'... Seal portion, 6... Gap portion, 8... Through hole, 21... Mold holder, 23... Mold, 33... Negative pressure generator.
Claims (1)
て、その分割面に複数条のシール部を設け、各シ
ール部間に間隙部を形成すると共に、間隙部から
鋳型ホルダーの外部へ通ずる通孔を設け、その通
孔に負圧発生装置を接続してなるガス硬化式造型
機。1. In a split mold holder for storing a mold, a plurality of seal parts are provided on the split surface, a gap is formed between each seal part, and a through hole is provided that leads from the gap to the outside of the mold holder, A gas curing molding machine with a negative pressure generator connected to the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP77778A JPS5493748A (en) | 1978-01-06 | 1978-01-06 | Seal device for split surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP77778A JPS5493748A (en) | 1978-01-06 | 1978-01-06 | Seal device for split surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5493748A JPS5493748A (en) | 1979-07-25 |
| JPS623699B2 true JPS623699B2 (en) | 1987-01-26 |
Family
ID=11483124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP77778A Granted JPS5493748A (en) | 1978-01-06 | 1978-01-06 | Seal device for split surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5493748A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024044257A (en) * | 2022-09-21 | 2024-04-02 | 本田技研工業株式会社 | Casting mold |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5920947U (en) * | 1982-07-30 | 1984-02-08 | 新東工業株式会社 | Mold box for gas hardening molds |
| JP4658639B2 (en) * | 2005-02-25 | 2011-03-23 | 三菱重工コンプレッサ株式会社 | Centrifugal compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5048349A (en) * | 1973-08-31 | 1975-04-30 | ||
| JPS529566A (en) * | 1975-07-14 | 1977-01-25 | Jiyunji Okabe | Tobacco case |
-
1978
- 1978-01-06 JP JP77778A patent/JPS5493748A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024044257A (en) * | 2022-09-21 | 2024-04-02 | 本田技研工業株式会社 | Casting mold |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5493748A (en) | 1979-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS623699B2 (en) | ||
| JPS62161440A (en) | Anti-gravity casting equipment | |
| JPS59153547A (en) | Method and apparatus for separating molding element from casting molding material | |
| JPS60111736A (en) | Molding method of vacuum casting mold | |
| JPS5841932B2 (en) | Continuous mold manufacturing equipment | |
| JPH0434986Y2 (en) | ||
| JPH04223122A (en) | Molding of form prototype for lost form casting | |
| JPS636305B2 (en) | ||
| JPS58119436A (en) | Molding method of gas hardened casting mold | |
| JPS6145952Y2 (en) | ||
| SU1066720A1 (en) | Stack casting mould | |
| JPH0222113Y2 (en) | ||
| JPS5849164Y2 (en) | Gashing plate device for gas hardening mold making machine | |
| JP2592659B2 (en) | Exhaust manifold for internal combustion engine and method of manufacturing the same | |
| SU937102A2 (en) | Flask equipment for producing casting moulds by vacuum moulding | |
| SU1766587A1 (en) | Method for production of boxless moulds by vacuum moulding | |
| JPS592920Y2 (en) | Mold equipment for gas-curing vertically split mold making machine | |
| JP3171371B2 (en) | Vacuum filling mold frame | |
| JPH0214844Y2 (en) | ||
| JPS566756A (en) | Packing method of core sand for casting | |
| JPS61245941A (en) | Vacuum molding method | |
| JPS62197243A (en) | Molding method for cold box core | |
| JPS58107252A (en) | Molding method for mold to be hardened by gas | |
| JPS6049067B2 (en) | sand molding method | |
| JP3268971B2 (en) | Foundry blower for casting mold |