JPS5827016B2 - Blow tank sand prevention nozzle - Google Patents
Blow tank sand prevention nozzleInfo
- Publication number
- JPS5827016B2 JPS5827016B2 JP9942181A JP9942181A JPS5827016B2 JP S5827016 B2 JPS5827016 B2 JP S5827016B2 JP 9942181 A JP9942181 A JP 9942181A JP 9942181 A JP9942181 A JP 9942181A JP S5827016 B2 JPS5827016 B2 JP S5827016B2
- Authority
- JP
- Japan
- Prior art keywords
- blow tank
- sleeve
- mold
- blow
- cap
- 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
- 239000004576 sand Substances 0.000 title claims description 11
- 230000002265 prevention Effects 0.000 title claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005266 casting Methods 0.000 description 5
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003110 molding sand Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
- B22C15/245—Blowing tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Description
【発明の詳細な説明】
本発明はシェル中子製造装置におけるブロータンクの砂
落ち防止ノズルに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sand drop prevention nozzle for a blow tank in a shell core manufacturing apparatus.
シェル中子を製造するには加熱した金型内に鋳砂を供給
して成形するのであるが、鋳砂はブロータンクに収容さ
れていて、金型の砂供給口に圧着した後、ブロータンク
内から圧力空気と共に金型内に圧入される。To manufacture shell cores, casting sand is supplied into a heated mold and molded.The sand is stored in a blow tank, and after being crimped to the sand supply port of the mold, it is transferred to the blow tank. It is press-fitted into the mold together with pressurized air from inside.
ところで、従来のブロータンク１は第５図に示すように
ブロー一口２の上方に適宜な間隔で板３（通称邪摩板）
を設置し、支軸４で板３を支持していたが、タンク内に
収容された鋳砂は板の周縁からブロー口２に向って４５
°の角度で静止している。By the way, in the conventional blow tank 1, as shown in FIG.
was installed, and the plate 3 was supported by the support shaft 4, but the casting sand contained in the tank was spread 45 from the periphery of the plate toward the blow port 2.
It is at rest at an angle of °.
ブロータンクは金型の所定位置に設置する必要があるの
で、通常はストッパに衝突させて位置決めをしており、
このためブロー口からタンク内の鋳砂が落下し金型内に
侵入していた。The blow tank needs to be installed at a predetermined position in the mold, so it is usually positioned by colliding with a stopper.
As a result, the casting sand in the tank fell from the blow port and entered the mold.
前記金型は２８０〜３００℃に加熱しているので、ブロ
ータンクの位置決め時に金型内に侵入した鋳砂は金型の
表面に付着した後、直ちに焼結されるので次いで供給さ
れる鋳砂とはなじまず、底形された中子の表面を粗面に
していた。Since the mold is heated to 280 to 300°C, the molding sand that enters the mold during positioning of the blow tank adheres to the surface of the mold and is immediately sintered, so that the molding sand that is subsequently supplied is However, the surface of the bottom-shaped core was rough.
又、中子の表面が粗面であると鋳造製品の鋳はだが滑か
に仕上らないことと、中子が鋳はだに食い込み型離れが
充分に行えない等の種々の欠点が生じていた。In addition, if the surface of the core is rough, various disadvantages may occur, such as the molded product not being finished smoothly and the core biting into the mold, making it difficult to release the mold sufficiently. Ta.
そして従来これらの欠点を解決する方法としては中子表
面に黒鉛を塗布した塗型を使用してきたが、総ての中子
に塗型をするのは手数もかかり中子製造の作業能率は低
下するばかりであった。Conventionally, the method to solve these drawbacks has been to use a coating mold with graphite coated on the surface of the core, but coating every core is time-consuming and reduces the work efficiency of core manufacturing. I just did it.
本発明は上述した従来の現状に鑑みて発明されたもので
、ブロータンクと金型の位置決めの際にタンク内の鋳砂
が金型内に落下しないノズルを提供しようとするもので
ある。The present invention was invented in view of the above-mentioned conventional situation, and an object thereof is to provide a nozzle that prevents casting sand in the tank from falling into the mold when positioning the blow tank and the mold.
以下図示した実施例によって本発明の詳細な説明する。The present invention will be explained in detail below with reference to the illustrated embodiments.
第１図はブロータンクと金型の概略を示すもので、１０
はブロータンク、１１は金型で、前記ブロータンク１０
には金型の鋳砂供給口と対応する位置にブロー口１２が
設けてあり、該ブロー口１２に本発明のノズル１３が装
着される。Figure 1 shows an outline of the blow tank and mold.
1 is a blow tank, 11 is a mold, and the blow tank 10 is
A blow port 12 is provided at a position corresponding to the casting sand supply port of the mold, and a nozzle 13 of the present invention is attached to the blow port 12.
前記ノズル１３は筒状のスリーブ１４の一端にフランジ
１５を設け、スリーブ１４の外壁に軸方向に平行する３
条の溝１６，１６を形威すると共に、スリーブ先端の内
壁をスリーブ先端に至るに従って薄肉となるテーパ部１
７に形威しである。The nozzle 13 has a flange 15 provided at one end of a cylindrical sleeve 14, and a flange 15 extending axially parallel to the outer wall of the sleeve 14.
A tapered portion 1 which forms the grooves 16, 16 of the strips and whose inner wall at the tip of the sleeve becomes thinner as it reaches the tip of the sleeve.
7 is a formality.
１８は有底筒体のキャップで、前記スリーブ１４より大
径に形成されていて、スリーブ１４に嵌合したときに少
くとも開口端縁は前記フランジ１５に接合する深さを有
しており、前記スリーブの溝１６．１６に対応させた止
ねじ１９，１９を設けである。Reference numeral 18 denotes a cap of a cylindrical body with a bottom, which is formed to have a larger diameter than the sleeve 14, and has a depth such that at least the opening edge is joined to the flange 15 when the cap is fitted into the sleeve 14; Set screws 19, 19 are provided corresponding to the grooves 16, 16 of the sleeve.
本発明は以上の構成であって、止ねじ１９，１９をゆる
めてキャップ１８の取付高さを調整し、キャップ開口縁
とフランジ１５との距離を所望する高さに合わせて前記
止ねじ１９，１９を締付けてキャップ１８を固定する。The present invention has the above-described configuration, and the mounting height of the cap 18 is adjusted by loosening the set screws 19, 19, and the distance between the cap opening edge and the flange 15 is adjusted to the desired height. 19 to fix the cap 18.
そしてブロータンク１０内に錦紗を収容した後、ブロー
タンク１０を移動してブロー口１２と金型１１の開口部
とを正しく位置決めし、さらにブロータンク１０と金型
を圧着した状態に保持しながらブロータンク１０内に圧
力空気を供給して前記ブロー口１２から錦紗を圧力空気
と共に金型１１内に圧入する。After storing the tinsel in the blow tank 10, the blow tank 10 is moved to correctly position the blow port 12 and the opening of the mold 11, and the blow tank 10 and the mold are held in a crimped state. Pressure air is supplied into the blow tank 10 and the brocade is press-fitted into the mold 11 from the blow port 12 together with the pressurized air.
錦紗はキャップ１８とスリーブ１４との隙間を経てスリ
ーブ開口部からブロー口１２へ移送され、又、圧力空気
は金型１０に設けた空気抜穴に装着するベントホールを
介して外部へ放出され、金型内には錦紗のみが残り、金
型内側形状の中子を得ることが出来るのである。The brocade is transferred from the sleeve opening to the blow port 12 through the gap between the cap 18 and the sleeve 14, and the pressurized air is released to the outside through a vent hole attached to an air vent hole provided in the mold 10. Only the brocade remains inside the mold, making it possible to obtain a core shaped like the inside of the mold.
以上説明したように本発明はブロータンクの底部に立上
り構造となるスリーブを設け、このスリーブの外方に有
底のキャップを装着したから、ブロータンクの位置決め
の際にストッパに突当てた場合でもタンク内の錦紗がブ
ロー口から落下することがなく、さらには前記スリーブ
開口縁を斜状に形成したから、タンク内に錦紗を供給し
たときにスリーブ端壁に錦紗が残ることがないので、金
型に圧入する以前に砂が入り込む虞れが全くなく、従っ
て鋳はだ表面が滑かな中子を得ることが出来る効果があ
る。As explained above, in the present invention, a sleeve with a rising structure is provided at the bottom of the blow tank, and a bottomed cap is attached to the outside of this sleeve, so even if the blow tank hits the stopper during positioning, The tinsel in the tank will not fall from the blow port, and since the opening edge of the sleeve is formed obliquely, no tinsel will remain on the end wall of the sleeve when the tinsel is supplied into the tank. There is no risk of sand getting into the mold before it is press-fitted into the mold, and therefore a core with a smooth solder surface can be obtained.
第１図はブロータンクを金型に接合する状態を表゛わす
正面図、第２図、第３図はブロー口に本発明のバルブを
取付けた状態の一部縦断面正面図で第２図は使用時、第
３図は不使用時を夫々表わす、第４図は第２図Ａ−Ａ線
に沿って一部を破断した平面図、第５図はブロー口の従
来構造を示す縦断面図である。
１０・・・・・・ブロータンク、１１・・・・・・金型
、１２・・・・・・ブロー口、１３・・・・・・ノズル
、１４・・・・・・スリーブ、１５・・・・・・フラン
ジ、１６・・・・・・溝、１７・・・・・・テーパ部、
１８・・・・・・キャップ、１９・・・・・・止ねじ。Figure 1 is a front view showing the state in which the blow tank is joined to the mold, and Figures 2 and 3 are front views in partial vertical section showing the state in which the valve of the present invention is attached to the blow port. 3 shows the state when in use, FIG. 4 shows the state when not in use, FIG. 4 is a partially cutaway plan view taken along line A-A in FIG. 2, and FIG. 5 is a longitudinal section showing the conventional structure of the blow port. It is a diagram. 10... Blow tank, 11... Mold, 12... Blow mouth, 13... Nozzle, 14... Sleeve, 15... ...flange, 16...groove, 17...tapered part,
18... Cap, 19... Set screw.
Claims (1)
リーブを設け、該スリーブの外方にスＩＪ−ブよりも大
径で有底なキャップを取付高さを任意に設定可能に装着
すると共に、スリーブ開口端は先端に至るに従って薄肉
となるテーパに形威したブロータンクの砂落ち防止ノズ
ル。 ２ 前記スリーブ外壁には軸方向に沿う複数本の溝を設
け、キャップには前記溝に対応させた止ねじを設けたこ
とを特徴とする特許請求の範囲第１項記載のブロータン
クの砂落ち防止ノズル。[Claims] 1. A cylindrical sleeve is provided at the blow port formed at the bottom of the blow tank, and a bottomed cap with a diameter larger than that of the sleeve is attached to the outside of the sleeve, and the height can be adjusted arbitrarily. A blow tank nozzle that can be installed in a configurable manner and has a tapered sleeve opening that becomes thinner as it reaches the tip. 2. A method for removing sand from a blow tank according to claim 1, characterized in that the outer wall of the sleeve is provided with a plurality of grooves along the axial direction, and the cap is provided with set screws corresponding to the grooves. prevention nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9942181A JPS5827016B2 (en) | 1981-06-26 | 1981-06-26 | Blow tank sand prevention nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9942181A JPS5827016B2 (en) | 1981-06-26 | 1981-06-26 | Blow tank sand prevention nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS583750A JPS583750A (en) | 1983-01-10 |
| JPS5827016B2 true JPS5827016B2 (en) | 1983-06-07 |
Family
ID=14246999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9942181A Expired JPS5827016B2 (en) | 1981-06-26 | 1981-06-26 | Blow tank sand prevention nozzle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5827016B2 (en) |
-
1981
- 1981-06-26 JP JP9942181A patent/JPS5827016B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS583750A (en) | 1983-01-10 |
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