JPH0216831Y2 - - Google Patents
Info
- Publication number
- JPH0216831Y2 JPH0216831Y2 JP1983119000U JP11900083U JPH0216831Y2 JP H0216831 Y2 JPH0216831 Y2 JP H0216831Y2 JP 1983119000 U JP1983119000 U JP 1983119000U JP 11900083 U JP11900083 U JP 11900083U JP H0216831 Y2 JPH0216831 Y2 JP H0216831Y2
- Authority
- JP
- Japan
- Prior art keywords
- model
- mold
- forming member
- spray
- sand layer
- 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 claims description 29
- 239000000463 material Substances 0.000 claims description 27
- 239000007921 spray Substances 0.000 claims description 26
- 238000000465 moulding Methods 0.000 claims description 14
- 239000011236 particulate material Substances 0.000 claims description 14
- 239000011230 binding agent Substances 0.000 claims description 11
- 239000000057 synthetic resin Substances 0.000 claims description 10
- 229920003002 synthetic resin Polymers 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 230000035699 permeability Effects 0.000 claims description 6
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 32
- 238000005266 casting Methods 0.000 description 11
- 238000003860 storage Methods 0.000 description 7
- 238000009415 formwork Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 239000003595 mist Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001877 deodorizing effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 229910052845 zircon Inorganic materials 0.000 description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000007849 furan resin Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Casting Devices For Molds (AREA)
Description
【考案の詳細な説明】
技術分野
本考案は耐火性粒子状材料と、同粒子状材料を
硬化結合するための結合材とを混合して生成した
鋳型形成材料を、鋳物製品の模型を収容した型枠
内に吹付充填する吹付造型装置に関するものであ
る。[Detailed description of the invention] Technical field The present invention uses a mold forming material produced by mixing a refractory particulate material and a binding material for hardening and bonding the particulate material to house a model of a cast product. This invention relates to a spray molding device that sprays and fills a mold.
従来技術
一般に、前記吹付造型装置により鋳型を製造す
る場合、鋳型の形状、大きさ等に制限がなく、高
精度の鋳型が得られ、高品質の鋳物を得ることが
できる。これらの特徴は前記鋳型形成材料を高密
度充填し得る吹付充填の結果である。Prior Art Generally, when a mold is manufactured using the above-mentioned blow molding apparatus, there are no restrictions on the shape, size, etc. of the mold, and a highly accurate mold can be obtained, and a high quality casting can be obtained. These features are the result of spray filling, which allows the mold forming material to be densely packed.
ところで、前記吹付造型装置により例えば1t以
上の重量を有する大型鋳物を製造する場合には、
ジルコン砂あるいはクロマイト砂等の耐火度の高
い粒子状材料からなる鋳型形成材料を前記模型の
表面に吹付け、同模型の表面に薄い肌砂層を形成
した後、硅砂等からなる通常の鋳型形成材料を前
記型枠内に吹付充填し、裏砂層を形成している。
前記肌砂層の形成は鋳型内に流し込まれた溶湯の
熱及び重量による鋳型の鋳肌表面における焼着発
生防止のためである。この肌砂層の厚さは鋳物重
量等によつて異なるが、通常は10〜50mm、好まし
くは10〜30mmである。ところが、高さが50cm以上
の垂立面を有する模型では前記垂立面に吹付けら
れた鋳型形成材料の自重により同形成材料が前記
垂立面上に適度の厚みをもつて付着できず、良好
な肌砂層を形成することができない。又、10t以
上の重量を有する大型鋳物の場合にも、同鋳物の
重量に応じた厚めの肌砂層を模型の垂立面で形成
することは同じく困難である。そのため、従来に
おいては第１図に示すように、模型１の垂立面１
ａ周囲に肌砂層の厚さＬに相当する寸法の支柱２
を介してエキスバンドメタルあるいは金網３を張
付け、垂立面１ａに吹付けられた肌砂層形成用の
鋳型形成材料を前記金網３により支持し、肌砂層
の形成を可能としている。しかし、この方法はそ
れぞれの模型ごとに煩雑な金網張付作業を必要と
し、あつコストアツプをもたらす等の問題を有し
ている。 By the way, when producing a large casting having a weight of 1 ton or more using the above-mentioned spray molding apparatus,
A mold forming material made of a highly refractory particulate material such as zircon sand or chromite sand is sprayed onto the surface of the model to form a thin sand layer on the surface of the model, and then a normal mold forming material made of silica sand etc. is sprayed onto the surface of the model. is sprayed and filled into the mold to form a backing sand layer.
The purpose of forming the skin sand layer is to prevent burning on the casting surface of the mold due to the heat and weight of the molten metal poured into the mold. The thickness of this sand layer varies depending on the weight of the casting, etc., but is usually 10 to 50 mm, preferably 10 to 30 mm. However, in the case of a model having a vertical surface with a height of 50 cm or more, the mold forming material sprayed onto the vertical surface is not able to adhere to an appropriate thickness on the vertical surface due to its own weight. Unable to form a good sand layer. Furthermore, in the case of large castings weighing 10 tons or more, it is similarly difficult to form a thick sand layer on the vertical surface of the model in accordance with the weight of the casting. Therefore, in the past, as shown in FIG.
a Support column 2 with dimensions corresponding to the thickness L of the skin sand layer around the
An expanded metal or a wire mesh 3 is pasted through the vertical surface 1a, and the mold forming material for forming a skin sand layer is supported by the wire mesh 3, thereby making it possible to form a skin sand layer. However, this method requires a complicated work of attaching wire mesh to each model, and has problems such as heating and increasing costs.
さらに、前記結合材材料としてはフラン樹脂等
が用いられるが、前記従来の吹付造型装置におい
ては吹付充填時に結合材材料のミストが飛散して
臭気が発生し、作業環境が悪化するという問題点
があつた。そのため、吸引装置に連通したフード
を前記型枠の周辺に配設し、悪臭を発する前記ミ
ストを捕集するようにしている。しかし、大型の
鋳物に応じて大型の型枠が使用される場合などに
は、ミスト捕集機構も大型化し、設備費が高額に
なるという問題点がある。 Furthermore, although furan resin or the like is used as the binder material, the conventional spray molding apparatus has the problem that the binder material mist scatters during spray filling, creating an odor and deteriorating the working environment. It was hot. Therefore, a hood connected to a suction device is disposed around the formwork to collect the mist that gives off a bad odor. However, when a large mold is used for large-sized castings, the mist collection mechanism also becomes larger, resulting in a problem of higher equipment costs.
目 的
本考案は前記問題点を考慮しつつなされたもの
であつて、その目的は模型表面への金網の張付作
業を行なうことなく模型の垂立面に対しても良好
な肌砂層を形成することができるとともに、作業
環境をも改善し得る吹付造型装置を提供すること
にある。Purpose The present invention was developed in consideration of the above-mentioned problems, and its purpose is to form a good sand layer even on the vertical surface of the model without having to attach wire mesh to the surface of the model. It is an object of the present invention to provide a spray molding apparatus that can improve the working environment.
構 成
この考案は、前記の目的を達成するために、耐
火性粒子材料と、同粒子状材料を硬化結合するた
めの結合材とを混合して生成した鋳型形成材料
を、鋳物製品の模型を収容した型枠内に吹付充填
する吹付造型装置において、吹付造型装置の型枠
内に配置される模型形成部材を合成樹脂、焼結金
属あるいはセラミツク材にて形成するとともに、
その材質自身にて通気性をもたせ、少なくとも前
記模型形成部材の垂立面からその内部へ向かう吸
引作用を生ぜしめるべく、前記模型形成部材を吸
引装置に通過したものである。Structure: In order to achieve the above object, this invention uses a mold forming material produced by mixing a refractory particulate material and a binder for hardening and bonding the same particulate material to form a model of a cast product. In a spray molding device that sprays and fills the housed mold, the model forming member placed in the mold of the spray molding device is made of synthetic resin, sintered metal, or ceramic material, and
The material itself has air permeability, and the model forming member is passed through a suction device in order to produce at least a suction effect from the vertical surface of the model forming member to the inside thereof.
実施例
以下、本考案を具体化した一実施例を第２図に
基づいて説明すると、架台４上には水平方向に延
出した状態で混合装置５が載置固定されており、
同装置５の混合トラフ６内部には混合軸７が回転
可能に支承されている。混合軸７の外周には多数
の混合羽根８が取外し可能に止着されており、混
合軸７の基端が架台４上に載置されたモータ等の
回転駆動装置９に作動連結されている。混合トラ
フ６の基端上部に接続された供給シユート１０は
ジルコン砂あるいはクロマイト砂等の耐火度の高
い粒子状材料貯留部（以下、貯留部Ａと表し、図
示しない）及び耐火性の硅砂貯留部（以下、貯留
部Ｂと表し、図示しない）にそれぞれロータリー
バルブ等の定量供給装置（図示略）を介して接続
されている。又、混合トラフ６の基端上部には電
磁バルブ１１を介して供給される有機もしくは無
機自硬性用の粘結剤を同トラフ６内へ送入する第
１の送入機構１２が設けられているとともに、混
合トラフ６の中央上部には電磁バルブ１３を介し
て供給される有機もしくは無機自硬性用の硬化剤
を同トラフ６内へ送入する第２の送入機構１４が
設けられている。なお、両送入機構１２，１４の
取付位置は必ずしも前記位置に限るものではな
く、その他の適宜の位置に取付配置することも可
能である。Embodiment Hereinafter, an embodiment embodying the present invention will be described based on FIG. 2. A mixing device 5 is mounted and fixed on a pedestal 4 in a horizontally extending state,
A mixing shaft 7 is rotatably supported inside a mixing trough 6 of the device 5. A large number of mixing blades 8 are removably fixed to the outer periphery of the mixing shaft 7, and the base end of the mixing shaft 7 is operatively connected to a rotational drive device 9 such as a motor placed on the pedestal 4. . A supply chute 10 connected to the upper part of the base end of the mixing trough 6 has a storage part for highly refractory particulate material such as zircon sand or chromite sand (hereinafter referred to as storage part A, not shown) and a refractory silica sand storage part. (hereinafter referred to as storage section B, not shown) are connected to each via a quantitative supply device (not shown) such as a rotary valve. Further, a first feeding mechanism 12 is provided at the upper part of the base end of the mixing trough 6 to feed an organic or inorganic self-hardening binder supplied via an electromagnetic valve 11 into the trough 6. At the same time, a second feed mechanism 14 is provided at the upper center of the mixing trough 6 to feed an organic or inorganic self-hardening agent supplied via an electromagnetic valve 13 into the trough 6. . Note that the mounting positions of both the feeding mechanisms 12 and 14 are not necessarily limited to the above-mentioned positions, and may be mounted at other appropriate positions.
混合トラフ６の漏斗状に形成された先端部には
ブースタ１５が取付けられている。同ブースタ１
５は漏斗状周壁部１５ａに先端出口方向に向かつ
て開口形成された環状の噴射孔１５ｂ、周壁部１
５ａの周囲に設けられた圧縮空気供給室１５ｃを
有しており、供給パイプ１６を介して圧縮空気供
給部（図示略）に接続されている。又、ブースタ
１５の先端には可撓性の吹付用ホース１７が接続
されている。 A booster 15 is attached to the funnel-shaped tip of the mixing trough 6. Same booster 1
Reference numeral 5 denotes an annular injection hole 15b formed in a funnel-shaped peripheral wall portion 15a toward the tip exit direction, and a peripheral wall portion 1
It has a compressed air supply chamber 15c provided around 5a, and is connected to a compressed air supply section (not shown) via a supply pipe 16. Further, a flexible spray hose 17 is connected to the tip of the booster 15.
吹付充填作業位置に配置された支持台１８上に
は支持枠１９が載置固定されており、同枠１９の
上面には矩形状の枠組体１９ａが一体形成されて
いる。枠組体１９ａ上には通気性を有する合成樹
脂からなる模型定盤２０が載置されており、同定
盤２０と支持枠１９との間に形成された空間部２
１は定盤２０及び支持枠１９に設けられた吸引通
路２２を経て吸引装置２３に連通している。な
お、同吸引装置２３には脱臭装置を設けることが
好ましく、同脱臭装置としては洗浄式吸収塔を備
えた湿式脱臭装置等の公知の装置を採用すること
ができる。 A support frame 19 is mounted and fixed on a support stand 18 disposed at the spray filling work position, and a rectangular frame body 19a is integrally formed on the upper surface of the frame 19. A model surface plate 20 made of breathable synthetic resin is placed on the frame body 19a, and a space 2 formed between the identification plate 20 and the support frame 19 is placed on the frame body 19a.
1 communicates with a suction device 23 via a suction passage 22 provided in a surface plate 20 and a support frame 19. Note that it is preferable that the suction device 23 is provided with a deodorizing device, and as the deodorizing device, a known device such as a wet deodorizing device equipped with a washing type absorption tower can be employed.
模型定盤２０上には型枠２４が複数のガイドピ
ン２５により規制載置されている。そして、本実
施例では型枠２４内において通気性を有する合成
樹脂からなる模型２６が模型定盤２０上に載置さ
れている。 A formwork 24 is regulated and placed on the model surface plate 20 by a plurality of guide pins 25 . In this embodiment, a model 26 made of breathable synthetic resin is placed on the model surface plate 20 within the formwork 24 .
次に、前記のように構成した実施例についてそ
の作用を説明する。 Next, the operation of the embodiment configured as described above will be explained.
さて、吸引装置２３を作動するとともに、回転
駆動装置９を駆動して混合軸７を回転させ、前記
貯留部Ａから一定量の耐火性粒子状材料を混合ト
ラフ６内に供給する。さらに、第１及び第２送入
機構１２，１４からそれぞれ粘結剤及び硬化剤を
混合トラフ６内に送入する。すると、前記耐火性
粒子状材料、粘結剤及び硬化剤が回転する混合羽
根８により混合され、この混合作用により鋳型形
成材料が生成される。この鋳型形成材料は混合ト
ラフ６の先端側へ順次送られる。そして、プース
タ１５へ送られてきた鋳型形成材料は環状の噴射
孔１５ｂから噴射される圧縮空気により加速さ
れ、人手により、あるいはロボツトのアームによ
り操作される吹付用ホース１７先端から型枠２４
内に吹付充填される。このとき、吸引装置２３が
作動されており、通気性を有する模型２６の表面
の空気は同模型２６内及び通気性を有する模型定
盤２０内を通つて吸引装置２３側へ吸引されてい
る。 Now, the suction device 23 is operated, and the rotary drive device 9 is driven to rotate the mixing shaft 7, thereby supplying a certain amount of refractory particulate material from the storage section A into the mixing trough 6. Further, a binder and a curing agent are fed into the mixing trough 6 from the first and second feeding mechanisms 12 and 14, respectively. The refractory particulate material, binder and hardener are then mixed by the rotating mixing vanes 8, and this mixing action produces a mold forming material. This mold forming material is sequentially fed to the tip side of the mixing trough 6. Then, the mold forming material sent to the pusher 15 is accelerated by compressed air injected from the annular injection hole 15b, and is transferred from the tip of the spray hose 17 to the mold frame 24, which is operated manually or by the arm of a robot.
The inside is sprayed and filled. At this time, the suction device 23 is operated, and the air on the surface of the model 26 having ventilation is sucked toward the suction device 23 through the inside of the model 26 and the model surface plate 20 having ventilation.
そのため、吹付用ホース１７から模型２６表面
に吹付けられる鋳型形成材料は模型２６表面にお
いて吸引作用を受け、模型２６表面に吸着され
る。この吸着作用は模型２６の垂立面２６ａ上に
おいても確実に行われる。そして、前記鋳型形成
材料が順次吹付けられるに伴い、模型２６表面近
傍における吸引作用により同表面上に順次吸着堆
積していく。この結果、第２図に鎖線で示す肌砂
層Ｓが良好な状態で形成される。 Therefore, the mold forming material sprayed onto the surface of the model 26 from the spray hose 17 receives a suction action on the surface of the model 26 and is adsorbed onto the surface of the model 26. This suction action is also reliably performed on the vertical surface 26a of the model 26. As the mold forming material is sequentially sprayed, it is successively adsorbed and deposited on the surface of the model 26 due to the suction action in the vicinity of the surface. As a result, a sand layer S shown by a chain line in FIG. 2 is formed in good condition.
又、鋳型形成材料の吹付充填に伴つて粘結剤の
ミストが飛散するが、同ミストの飛散に伴う臭気
も通気性を有する模型２６及び模型定盤２０を通
つて吸引装置２３側へ吸引されるため、作業環境
は良好に保たれ、前記吹付用ホース１７を人手に
より操作している場合にもこの作業者に不快感を
与えることはない。 Further, as the mold forming material is sprayed and filled, the binder mist is scattered, and the odor accompanying the scattering of the mist is also sucked into the suction device 23 side through the breathable model 26 and model surface plate 20. Therefore, the working environment is maintained in a good condition, and even when the spraying hose 17 is manually operated, the worker does not feel uncomfortable.
前記貯留部Ａから供給される所定量の耐火性粒
子状材料が全て型枠２４内に吹付充填され、肌砂
層Ｓが形成された後、前記貯留部Ｂから耐火性粒
子状材料を混合トラフ６内に供給し、混合トラフ
６内において鋳型形成材料を生成する。そして、
肌砂層Ｓ形成の場合と同様に吹付用ホース１７か
ら前記鋳型形成材料を型枠２４内に吹付充填し、
肌砂層Ｓ上に裏砂層を形成すれば吹付充填作業が
完了する。 After a predetermined amount of the refractory particulate material supplied from the storage part A is completely sprayed and filled into the formwork 24 and a sand layer S is formed, the refractory particulate material is mixed from the storage part B into the mixing trough 6. The mold forming material is produced in the mixing trough 6. and,
As in the case of forming the sand layer S, the mold forming material is sprayed into the mold frame 24 from the spray hose 17,
Once the back sand layer is formed on the skin sand layer S, the spray filling work is completed.
前述した如く、本考案は鋳物模型の垂立面上に
模型内部方向への吸引作用を生ぜしめ、この吸引
作用により良好な肌砂層を形成することを要旨と
しており、前記実施例では通気性を有する合成樹
脂により模型２６全体及び模型定盤２０を形成
し、模型２６を吸引装置２３に連通している。そ
の結果、模型の垂立面における肌砂層形成を従来
の煩雑な金網張付作業工程を介することなく行な
うことができ、合わせて作業環境の改善をも図り
得るという優れた効果をもたらしている。 As mentioned above, the gist of the present invention is to create a suction action toward the inside of the model on the vertical surface of the casting model, and to form a good sand layer by this suction action. The entire model 26 and the model surface plate 20 are made of synthetic resin, and the model 26 is communicated with a suction device 23. As a result, the sand layer can be formed on the vertical surface of the model without going through the conventional complicated process of attaching wire mesh, and the work environment can also be improved, which is an excellent effect.
なお、本考案は前記実施例のみに限定されるも
のではなく、例えば第３図に示すように模型２６
の内部において垂立面２６ａに沿う吸引用凹孔２
６ｂを模型２６の下面から穿設し、垂立面２６ａ
における吸引作用を均等化したり、あるいは模型
２６と模型定盤２０とを一体形成することも可能
である。又、第４図に示すように、模型２７の垂
立面２７ａのみを通気性を有する合成樹脂により
形成し、その他の部分を従来通り木型形成しても
よい。この場合、勿論模型２７を載置する模型定
盤を通気性を有する合成樹脂で形成してもよい
が、同図に示すように模型定盤２８を通気性を有
しない部材で形成し、垂立面２７ａの載置位置に
透孔２８ａを設け、垂立面２７ａにおいて吸引作
用を生ぜしめてもよい。 Note that the present invention is not limited to the above-mentioned embodiment, and for example, a model 26 as shown in FIG.
A suction recess 2 along the vertical surface 26a inside the
6b is drilled from the bottom surface of the model 26, and the vertical surface 26a
It is also possible to equalize the suction action or to form the model 26 and the model surface plate 20 integrally. Alternatively, as shown in FIG. 4, only the vertical surface 27a of the model 27 may be formed of a synthetic resin having air permeability, and the other portions may be formed into a wooden shape in the conventional manner. In this case, of course, the model surface plate on which the model 27 is placed may be made of breathable synthetic resin, but as shown in the same figure, the model surface plate 28 may be formed of a material that does not have air permeability, and A through hole 28a may be provided at the mounting position of the vertical surface 27a to produce a suction effect on the vertical surface 27a.
前記各実施態様のいずれの場合においても、通
気性を有する部材として合成樹脂を用いてきた
が、勿論本考案ではその他の通気性を有する部材
を採用することができ、例えば通気性を有する焼
結金属、セラミツク等が好適である。 In each of the above embodiments, synthetic resin has been used as the breathable member, but of course other breathable members can be used in the present invention, such as breathable sintered material. Metals, ceramics, etc. are suitable.
効 果
以上詳述したように、この考案は耐火性粒子状
材料と、同粒子状材料とを硬化結合するための結
合材とを混合して生成した鋳型形成材料を、鋳物
製品の模型を収容した型枠内に吹付充填する吹付
造型装置において、吹付造型装置の型枠内に配置
される模型形成部材を合成樹脂、焼結金属あるい
はセラミツク材にて形成するとともに、その材質
自身にて通気性をもたせ、少なくとも前記模型形
成部材の垂立面からその内部へ向かう吸引作用を
生ぜしめるべく、前記模型形成部材を吸引装置に
連通したことにより、従来肌砂層の形成のために
行なつていた模型形成部材の周囲の金網張付作業
を行なう必要がなく、鋳物模型の垂立面に対して
も良好な肌砂層を形成することができる。Effects As detailed above, this invention uses a mold forming material produced by mixing a refractory particulate material and a binder for hardening and bonding the particulate material to house a model of a cast product. In a spray molding device that sprays and fills a mold, the model forming member placed inside the mold of the spray molding device is made of synthetic resin, sintered metal, or ceramic material, and the material itself has air permeability. By communicating the model forming member with a suction device in order to generate a suction action from at least the vertical surface of the model forming member toward the inside thereof, the model forming method that was conventionally used for forming a skin sand layer can be improved. There is no need to perform a wire meshing work around the forming member, and a good sand layer can be formed even on the vertical surfaces of the casting model.
特に、従来は肌砂層の形成時においては肌砂層
を形成する鋳型形成材料の自重により模型形成部
材の垂立面上に適度の厚みをもつて付着すること
は困難であつたが、本願考案によれは適度な厚み
に、しかも均一な厚みを形成するこができる。さ
らに、従来は10t以上の重量を有する大型鋳物の
場合、同鋳物の重量に応じた厚めの肌砂層を模型
の垂立面に設けることは特に困難であつたが、本
願考案ではそのような問題もなく実施することが
できる。 In particular, in the past, when forming a skin sand layer, it was difficult to adhere to the vertical surface of a model forming member with an appropriate thickness due to the weight of the mold forming material forming the skin sand layer, but with the present invention, The twist can form an appropriate thickness and a uniform thickness. Furthermore, in the case of large castings weighing 10 tons or more, it was previously particularly difficult to provide a thick sand layer on the vertical surface of the model in accordance with the weight of the casting, but the present invention solves such problems. It can be carried out without any problems.
又、吹付造型装置の型枠内に配置される模型形
成部材は合成樹脂、焼結金属あるいはセラミツク
材にて形成され、その材質自身にて通気性をもた
ているので模型形成部材に多数の小孔を別途ドリ
ル等で穿孔する必要がないので、模型形成部材の
製造コストを安くすることができる。 In addition, the model forming member placed in the mold of the spray molding device is made of synthetic resin, sintered metal, or ceramic material, and since the material itself has air permeability, the model forming member has many parts. Since it is not necessary to separately drill small holes with a drill or the like, the manufacturing cost of the model forming member can be reduced.
さらには、吹付作業時に生じる臭気を吸引して
作業環境の改善を図ることができる。 Furthermore, it is possible to improve the working environment by sucking out the odor generated during spraying work.
第１図は従来の吹付造型時における一作業工程
を示す破断斜視図、第２図は本考案を具体化した
一実施例を示す要部破断正面図、第３，４図はい
ずれも本考案の別例を示す要部縦断面図である。
支持台……１８、支持枠……１９、枠組体……
１９ａ、模型定盤……２０，２８、空間部……２
１、吸引通路……２２、吸引装置……２３、型枠
……２４、模型……２６，２７、垂立面……２６
ａ，２７ａ。
Fig. 1 is a cutaway perspective view showing one work process in conventional spray molding, Fig. 2 is a cutaway front view of main parts showing an embodiment embodying the present invention, and Figs. 3 and 4 are both the invention of the present invention. FIG. 7 is a vertical cross-sectional view of main parts showing another example of FIG. Support stand...18, Support frame...19, Framework body...
19a, Model surface plate...20, 28, Space section...2
1. Suction passage...22, Suction device...23, Formwork...24, Model...26, 27, Vertical surface...26
a, 27a.
Claims (1)
合するための結合材とを混合して生成した鋳型
形成材料を、鋳物製品の模型を収容した型枠内
に吹付充填する吹付造型装置において、 吹付造型装置の型枠内に配置される模型形成
部材を合成樹脂、焼結金属あるいはセラミツク
材にて形成するとともに、その材質自身にて通
気性をもたせ、少なくとも前記模型形成部材の
垂立面からその内部へ向かう吸引作用を生ぜし
めるべく、前記模型形成部材を吸引装置に連通
し、肌砂層を模型形成部材の表面に形成するこ
とを特徴とする吹付造型装置。 ２ 結合材が有機もしくは無機自硬性用の粘結剤
及び硬化剤である実用新案登録請求の範囲第１
項に記載の吹付造型装置。[Claims for Utility Model Registration] 1. A mold-forming material produced by mixing a fire-resistant particulate material and a binder for curing and bonding the particulate material into a mold containing a model of a cast product. In a spray molding device for spray filling, the model forming member placed in the mold frame of the spray molding device is made of synthetic resin, sintered metal, or ceramic material, and the material itself has air permeability and at least A spray molding apparatus characterized in that the model forming member is communicated with a suction device to generate a suction action from the vertical surface of the model forming member toward the inside thereof, and a skin sand layer is formed on the surface of the model forming member. . 2 Utility model registration claim 1 where the binder is an organic or inorganic self-hardening binder and hardening agent
The spray molding equipment described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11900083U JPS6028947U (en) | 1983-07-30 | 1983-07-30 | spray molding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11900083U JPS6028947U (en) | 1983-07-30 | 1983-07-30 | spray molding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6028947U JPS6028947U (en) | 1985-02-27 |
| JPH0216831Y2 true JPH0216831Y2 (en) | 1990-05-10 |
Family
ID=30273286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11900083U Granted JPS6028947U (en) | 1983-07-30 | 1983-07-30 | spray molding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6028947U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5725245A (en) * | 1980-07-18 | 1982-02-10 | Harada Chuzosho:Kk | Method and device for core molding |
-
1983
- 1983-07-30 JP JP11900083U patent/JPS6028947U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5725245A (en) * | 1980-07-18 | 1982-02-10 | Harada Chuzosho:Kk | Method and device for core molding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6028947U (en) | 1985-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101249547B (en) | Tooth form part foundry technique method | |
| CN105057600B (en) | Utilize casting core and the manufacture method of foundry goods of inorganic bond | |
| CN107900284B (en) | A kind of manufacturing process of cylinder head | |
| AU595567B2 (en) | Mold core for investment casting, process for preparing the same and process for preparing mold for investment casting having therewithin said mold core | |
| US3621086A (en) | Method for making facing brick with varied color and texture | |
| JPH0216831Y2 (en) | ||
| US2513212A (en) | Apparatus for the preparation of casting molds | |
| PL100575B1 (en) | THE METHOD OF MAKING THE SAND FORM AND THE CUTTING DEVICE FOR THE FORM OF THE SAND FORM | |
| JPH0825006B2 (en) | Low pressure casting method using sand mold | |
| CN106641189A (en) | Belt pulley | |
| CN209110128U (en) | A kind of semi-automatic sander of hot investment casting | |
| CN206316344U (en) | The full-automatic sand casting moulding machine Multifunctional sand blasting plate of sand is penetrated up and down | |
| CN209393944U (en) | Device for sand coated iron mould type core | |
| JPS5852737B2 (en) | Molding sand quantitative blowing mold making machine | |
| JPH0516933B2 (en) | ||
| CN106424594A (en) | Multifunctional sandblasting board for up-down sand shooting type full-automatic sand casting molding machine | |
| JPS6478654A (en) | Full mold molding method | |
| US5388630A (en) | Method of manufacturing core and mold | |
| CN206936282U (en) | A kind of sander | |
| JPS6317559Y2 (en) | ||
| JPS644862B2 (en) | ||
| US2852819A (en) | Machine for making shell molds | |
| JPS601101B2 (en) | blowhead device | |
| US3293701A (en) | Automaton for manufacturing shell half-molds from sand and resin compositions | |
| JPS59130645A (en) | Mold forming method |