JP2515239B2 - Method and apparatus for wetting a mold plate of a frameless molding machine - Google Patents
Method and apparatus for wetting a mold plate of a frameless molding machineInfo
- Publication number
- JP2515239B2 JP2515239B2 JP5245858A JP24585893A JP2515239B2 JP 2515239 B2 JP2515239 B2 JP 2515239B2 JP 5245858 A JP5245858 A JP 5245858A JP 24585893 A JP24585893 A JP 24585893A JP 2515239 B2 JP2515239 B2 JP 2515239B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding machine
- release agent
- nozzle
- plate
- 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 - Fee Related
Links
- 238000000465 moulding Methods 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 15
- 238000009736 wetting Methods 0.000 title claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 23
- 239000007921 spray Substances 0.000 claims description 23
- 238000005507 spraying Methods 0.000 claims description 17
- 239000004576 sand Substances 0.000 claims description 9
- 239000003595 mist Substances 0.000 claims description 8
- 239000006082 mold release agent Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims 1
- 239000003570 air Substances 0.000 description 14
- 239000000314 lubricant Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
- B22C11/10—Moulding machines characterised by the relative arrangement of the parts of same with one or more flasks forming part of the machine, from which only the sand moulds made by compacting are removed
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は,枠なし造型機の鋳型板
を液状離型剤(潤滑剤)で湿潤させる方法及び装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for wetting a mold plate of a frameless molding machine with a liquid release agent (lubricant).
【0002】[0002]
【従来の技術】従来の技術において,離型剤,大抵の場
合油,は,鋳型枠が開かれている際に,鋳型板,特に両
方の原型板,上へ噴霧された。この種の湿潤には,実際
上離型剤の約50%しか鋳型板を湿潤させず,離型剤の
残りの半分は造型機の周囲に分布したという根本的欠点
があつた。これは,周囲空気中に存在する油粒子を吸い
込むことによつて,造型機で仕事をしている人に,アレ
ルギー,気菅支炎,肺炎のような健康問題を引き起こす
ことがしばしばあつた。2. Description of the Prior Art In the prior art, mold release agents, often oils, were sprayed onto a mold plate, especially both mold plates, when the mold was opened. This type of wetting has the fundamental drawback that in practice only about 50% of the release agent wets the mold plate and the other half of the release agent is distributed around the molding machine. This often causes health problems such as allergies, bronchitis, and pneumonia in people working on the molding machine by inhaling oil particles present in the ambient air.
【0003】離型剤による造型機の周囲の,更に生ずる
一般的汚染や,ある種の爆発及び火災の危険の他に,原
型板のこの種の湿潤は,油及び塵埃付着物の結合による
枠なし造型機の案内柱の摩耗の増大に至らせる。Besides the further general pollution around the molding machine by the release agent, and also the risk of certain explosions and fires, this kind of wetting of the template causes the frame due to the binding of oil and dust deposits. None Leads to increased wear on the guide columns of the molding machine.
【0004】これらの理由から,既に過去において,離
型剤を,鋳型枠が閉じられている際に,鋳型空洞へ注入
することが試みられた。このことには,環境の汚染の明
白な減少という利点があつたが,しかし原型板の十分か
つ確実な湿潤はできなかつた。特に,造型機の内壁にお
ける離型剤の均一な分布がなかつた。更に,離型剤の消
費量が非常に大きかつた。For these reasons, it has already been attempted in the past to inject a mold release agent into the mold cavity when the mold frame is closed. This had the advantage of a marked reduction in environmental pollution, but not sufficient and reliable wetting of the template. In particular, there was no uniform distribution of the release agent on the inner wall of the molding machine. Furthermore, the consumption of the release agent was very large.
【0005】[0005]
【発明が解決しようとする課題】本発明の課題は,湿潤
がほぼ閉じられた造型機でこの造型機の壁に設けられた
少なくとも1つのノズルにより行われる,枠なし造型機
の鋳型板を液状離型剤(潤滑剤)で湿潤させる方法を改
良して,一層大きい使用可能性及び一層大きい経済性の
他に,一層少ない環境悪化も示すようにすることであ
る。SUMMARY OF THE INVENTION The object of the present invention is to carry out a mold plate of a frameless molder in a liquid molder, in which the wetting is substantially closed, by means of at least one nozzle provided in the wall of the molder. The method of wetting with a release agent (lubricant) should be improved to show greater usability and greater economy as well as less environmental degradation.
【0006】[0006]
【課題を解決するための手段】この課題は本発明によれ
ば,鋳型砂の封入前に,圧縮空気及び離型剤から生じた
霧が造型機の内部空間へ吹込まれかつ霧が微細に分布さ
れて鋳型板上に沈殿することによつて解決される。According to the present invention, this object is to prevent the mist generated from the compressed air and the mold release agent from being blown into the internal space of the molding machine before the mold sand is filled and the mist is finely distributed. It is solved by being deposited and settling on the template plate.
【0007】離型剤から生じた霧を造型機の内部空間へ
本発明により吹込むことによつて,鋳型枠の内壁の表面
を湿潤させる,均一なかつ完全な,離型剤から成る薄層
が生ずる。従来の技術では常に過剰の離型剤が用いられ
たが,しかし全表面の完全な湿潤は保証されなかつた。
他方,本発明の方法では,圧縮空気流で非常に微細に分
布される,最小添加量の離型剤が用いられる。これは損
失のない湿潤であり,即ち,噴霧過程中に離型剤は周囲
へ達せず,離型剤の使用量を明らかに95%まで減少さ
せ,それにも拘らず湿潤の質ははるかに良好である。更
に,従来の技術では必要な,鋳型砂の油除去は,本発明
の方法を用いる場合に省けるということがつけ加わる。By blowing the mist generated from the release agent into the interior space of the molding machine according to the invention, a uniform and complete thin layer of the release agent, which moistens the surface of the inner wall of the mold, is obtained. Occurs. Prior art always used an excess of mold release agent, but did not guarantee complete wetting of the entire surface.
On the other hand, the method according to the invention uses a minimum amount of release agent which is very finely distributed in the compressed air stream. This is a loss-free wetting, ie the release agent does not reach the surroundings during the spraying process, reducing the release agent usage by up to 95%, nevertheless with a much better wetting quality. Is. In addition, the oil removal of the mold sand, which is required in the prior art, can be omitted when using the method of the present invention.
【0008】本発明の方法の有利な拡張では,更に,圧
縮空気及び離型剤から生じた霧を吹込む前に,ノズルが
少なくとも1つの圧縮空気衝撃によつて吹払われる。湿
潤の前に行われるこの吹払いは,従来の技術において起
こる,鋳型枠の内面の少なくとも一部の湿潤にしか至ら
せないような,鋳型砂による噴霧ノズルの詰まりを除去
する。この有利な吹払いによつて,鋳型枠の中に設けら
れたすべてのノズルが実際上離型剤を放出することがで
きる。In an advantageous extension of the method according to the invention, the nozzle is blown off by means of at least one compressed air impact before the atomization of the compressed air and of the release agent. This blow-off prior to wetting eliminates clogging of the spray nozzle with mold sand, which occurs in the prior art and results in only wetting of at least part of the inner surface of the mold. By virtue of this advantageous blowing, virtually all nozzles provided in the mould can release the release agent.
【0009】本発明は更に,上述の方法を実施するため
の装置も含んでおり,この装置では,ノズルの前に噴霧
装置が設けられており,この噴霧装置は造型機の運転経
過に合わされて制御可能である。これは,運転経過を変
える必要なしにかつ鋳型ブロツクの製造過程の延長なし
に,公知の造型機への本発明の装置の組込みを可能にす
る。The invention also comprises a device for carrying out the method described above, in which a spraying device is provided in front of the nozzle, the spraying device being adapted to the operating course of the molding machine. It is controllable. This makes it possible to integrate the device according to the invention into known molding machines without the need to change the course of operation and without extending the manufacturing process of the mold blocks.
【0010】上述の装置の具体的な構成では更に,噴霧
装置がこの噴霧装置の制御の目的のために,案内柱に設
けられたリミツトスイツチと 接続されている。In the particular configuration of the device described above, the spray device is further connected to a limit switch provided on the guide post for the purpose of controlling the spray device.
【0011】この種の噴霧装置によつて,案内柱を介し
て移動せしめられる対向揺動板がその上に設けられた内
側原型板と共に鋳型枠をほぼ閉じた時にはじめて噴霧サ
イクルを開始させることが可能である。それによつて,
全離型剤量が鋳型枠の内部にだけ分布することが保証さ
れる。According to this type of spraying device, the spraying cycle can be started only when the mold frame is almost closed together with the inner prototype plate provided on the opposing rocking plate which is moved via the guide column. It is possible. Therefore,
It is ensured that the total amount of release agent is distributed only inside the mold.
【0012】装置の別の有利な構成では更に,噴霧装置
とリミツトスイツチの間にプログラムを記憶可能な制御
装置が設けられており,この制御装置は圧力制御装置及
び弁箱との共同作用により噴霧過程の時間と,離型剤の
添加量と,圧縮空気の圧力及び容積流量とを変える。In a further advantageous embodiment of the device, a control device is provided between the atomizing device and the limit switch, in which a program can be stored, which controller cooperates with the pressure control device and the valve box to provide the atomizing process. , The amount of release agent added, and the pressure and volumetric flow rate of compressed air.
【0013】それによつて,噴霧装置を適当な運転状況
に合わせることが可能である。This makes it possible to adapt the spraying device to suitable operating conditions.
【0014】[0014]
【実施例】本発明のそれ以外の利点は,従属請求項及び
以下の説明から明らかになる。Further advantages of the invention will be apparent from the dependent claims and the following description.
【0015】図1に,鋳型連続体12の個々の鋳型ブロ
ツク11を製造するための枠なし造型機が,全体として
10で示されている。In FIG. 1, a frameless molding machine for producing individual mold blocks 11 of a mold continuum 12 is shown generally at 10.
【0016】これらの鋳型ブロツクの,互いに隣接して
いる2つの端面は,縦方向に連続する鋳型空洞Hを生ぜ
しめ,これらの鋳型空洞はそれぞれ注ぎ口Gを介して溶
融金属を装入される。この場合,鋳型空洞Hは例えば,
ボスを持つ,回転対称的な,はずみ車に似た構造体を示
している。Two adjoining end faces of these mold blocks form longitudinally continuous mold cavities H, which are each filled with molten metal via a spout G. . In this case, the mold cavity H is, for example,
It shows a rotationally symmetrical, flywheel-like structure with a boss.
【0017】個別の鋳型ブロツク11の製造は次のよう
に行われる。箱状の機械架台14の,機械側の供給ホツ
パ13により,鋳型砂が空気によつて高い供給速度で,
普段は片側を閉じられている鋳型空間Fへ吹込まれる。
図1に,端面の外側開口16及び端面の内側開口15を
持つ鋳型空間Fが示されている。鋳型空間を閉じるため
に,押圧板である外側原型板17が,液圧で操作される
ピストン棒18によつて右側へ矢印bの方向に鋳型空間
Fを通つて,原型板17が端面の外側開口16をふさぐ
まで引き戻される。The production of the individual mold blocks 11 is carried out as follows. The machine-side supply hopper 13 of the box-shaped machine mount 14 allows the mold sand to be supplied by air at a high supply speed,
It is blown into the mold space F which is normally closed on one side.
FIG. 1 shows a mold space F having an outer opening 16 on the end face and an inner opening 15 on the end face. In order to close the mold space, the outer mold plate 17, which is a pressing plate, passes through the mold space F in the direction of arrow b to the right by the piston rod 18 operated by hydraulic pressure, and the mold plate 17 is located outside the end surface. It is pulled back until it closes the opening 16.
【0018】鋳型空間Fの閉鎖位置において,揺動軸線
Sを中心に揺動矢印uの方向に移動可能な内側原型板1
9は,鋳型空間Fの端面の内側開口15を閉じる。この
ために内側原型板19は対向揺動板20に取付けられて
おり,この対向揺動板は揺動ブラケツト21に設けられ
ている。ピストン棒18の端面に設けられた,外側原型
板17を保持する締付け板は22で示されている。In the closed position of the mold space F, the inner prototype plate 1 movable about the swing axis S in the direction of the swing arrow u.
9 closes the inner opening 15 at the end face of the mold space F. For this purpose, the inner prototype plate 19 is attached to the counter rocking plate 20, which is mounted on the rocking bracket 21. A tightening plate for holding the outer prototype plate 17 provided on the end surface of the piston rod 18 is indicated by 22.
【0019】上述のやり方で閉じられた鋳型空間Fが鋳
型砂で満たされている限り,外側原型板17は矢印aの
方向に約10ないし15mm押しやられるので,圧縮さ
れた鋳型ブロツク11が生ずる。内側原型板19が,図
1に示された位置へ上方揺動せしめられて,この原型板
が鋳型ブロツク11の進行運動を妨げなくなると,外側
原型板17はピストン棒18の操作の際に鋳型ブロツク
11を矢印aの方向に,既に鋳型連続体側に存在する鋳
型ブロツク11の後端面まで押しやる。As long as the mold space F closed in the manner described above is filled with mold sand, the outer mold plate 17 is pushed about 10 to 15 mm in the direction of arrow a, so that a compressed mold block 11 results. When the inner prototype plate 19 is swung upwards to the position shown in FIG. 1 so that it does not impede the forward movement of the mold block 11, the outer master plate 17 is moved to the mold when the piston rod 18 is operated. The block 11 is pushed in the direction of the arrow a to the rear end surface of the mold block 11 already existing on the mold continuum side.
【0020】上板23と,底板24と,2つの側方室板
25と,既に前に述べた原型板17及び19とから成る
箱状機械架台14へ供給ホツパ13を介して鋳型砂を吹
込む前に,これらの原型板の鋳型空間F側の面が離型剤
を噴霧される。これは,原型板17及び19に付着物が
付いたままであることなしに,押圧過程後に,圧縮され
た鋳型ブロツク11からの原型板17及び19の分離を
改善するのに役立つ。更に,上板23,底板24及び室
板25の鋳型空間側の面の摩耗が減少される。噴霧は,
側方の室板25に設けられたノズル孔26を介して行わ
れる(図3及び4参照)。鋳型空間側のノズル挿入片2
7がノズル孔26へ押し込まれている間,外側を向く孔
部分28へ噴霧ノズル29がねじ込まれ,これらの噴霧
ノズルは,図2に示されている噴霧装置と結合されてい
る。The mold sand is blown via a supply hopper 13 to a box-shaped machine stand 14 consisting of a top plate 23, a bottom plate 24, two lateral chamber plates 25, and the prototype plates 17 and 19 already mentioned above. Before inserting, the surface of these prototype plates on the mold space F side is sprayed with a release agent. This serves to improve the separation of the master plates 17 and 19 from the compressed mold block 11 after the pressing process, without leaving the master plates 17 and 19 with deposits. Further, the wear of the surfaces of the upper plate 23, the bottom plate 24 and the chamber plate 25 on the mold space side is reduced. The spray is
This is done through nozzle holes 26 provided in the lateral chamber plate 25 (see FIGS. 3 and 4). Nozzle insert piece 2 on the mold space side
While the 7 is being pushed into the nozzle holes 26, spray nozzles 29 are screwed into the outwardly facing hole portions 28, these spray nozzles being associated with the spray device shown in FIG.
【0021】図2に,上板23,底板24,側方の室板
25及び噴霧装置30を持つ箱状機械架台14が概略的
に示されている。観者側の室板25にはノズル孔26の
孔部分28に墳霧ノズル29が取付けられている。これ
らの噴霧ノズル29は弁箱31を介して圧力制御装置3
2と接続されている。更に,これらの噴霧ノズルはそれ
ぞれ潤滑剤導菅33を持つている。圧力制御装置32は
一方では導管42を介して圧縮空気回路に接続され,他
方では離型剤導菅33を介して潤滑剤溜め43に接続さ
れている。プログラムを記憶可能な制御装置35は更に
接続導線34を介して弁箱31と接続されかつリミツト
スイツチ36と電気的に接続されており,これらのリミ
ツトスイツチは枠なし造型機10の案内柱37に設けら
れている。これらの案内柱37は,図示されてないが,
機械的に内側原型板19と結合されている。FIG. 2 schematically shows a box-shaped mechanical mount 14 having a top plate 23, a bottom plate 24, a side chamber plate 25 and a spraying device 30. A mist nozzle 29 is attached to a hole portion 28 of a nozzle hole 26 in the viewer-side chamber plate 25. These spray nozzles 29 are connected to the pressure control device 3 via a valve box 31.
It is connected to 2. Further, each of these spray nozzles has a lubricant guide 33. The pressure control device 32 is connected on the one hand to the compressed air circuit via a conduit 42 and on the other hand to a lubricant reservoir 43 via a release agent conduit 33. A control device 35 capable of storing a program is further connected to the valve box 31 via a connecting wire 34 and electrically connected to a limit switch 36, which are provided on a guide post 37 of the frameless molding machine 10. ing. These guide posts 37 are not shown,
It is mechanically connected to the inner prototype plate 19.
【0022】噴霧ノズル29はそれぞれ,図示されてい
ない噴霧器を持つており,この噴霧器により,離型剤の
僅かな添加量が比較的大きい圧縮空気容積流量で噴霧さ
れる。霧状の圧縮空気・潤滑剤混合物はノズル孔26へ
導入され,次いで,ノズル挿入片27のノズル孔26の
壁と覆い板38との間に形成された環状ノズル隙間39
から鋳型空間Fへ流出する(図3参照)。このノズル隙
間39は一部だけ環状に形成されていてもよい。 The spray nozzles 29 each have a sprayer (not shown), which sprays at a relatively large compressed air volumetric flow with a small amount of release agent added. The atomized compressed air / lubricant mixture is introduced into the nozzle hole 26, and then the annular nozzle gap 39 formed between the wall of the nozzle hole 26 of the nozzle insertion piece 27 and the cover plate 38.
To the mold space F (see FIG. 3). This nozzle gap
A part of the space 39 may be formed in an annular shape.
【0023】図2に示されていないが,両方の側方室板
25はそれぞれ相対してノズル孔26を持つている。後
に述べるように,噴霧サイクルは合わされているから,
両側から鋳型空間Fへ吹込まれた圧縮空気・潤滑油混合
物は鋳型空間Fのほぼ中心において互いに当たるので,
この混合物は,特に側方へ,従つて原型板17及び19
の方へそれる。霧状の混合物を吹込むためのこの装置は
全体として,原型板17及び19のみならず側方室板2
5,底板24及び上板23の完全なかつ均一に薄い湿潤
を実現させる。Although not shown in FIG. 2, both side chamber plates 25 have nozzle holes 26 facing each other. As we will see later, the spray cycles are coordinated,
Since the compressed air / lubricating oil mixture blown into the mold space F from both sides hits each other almost at the center of the mold space F,
This mixture is used, in particular laterally, and accordingly the prototype plates 17 and 19
Turn to. As a whole, this device for injecting a mist-like mixture has not only prototype plates 17 and 19 but also a side chamber plate 2
5. Realize a complete and even thin wetting of the bottom plate 24 and the top plate 23.
【0024】唯1つの室板25と種々の数及び配置の噴
霧ノズル29による霧状混合物の導入も考えろれること
はもちろんである。更に,2つの室板25,上板23又
は底板24にノズル孔26を設けることも原則的に可能
である。一方又は両方の原型板17,19へ向けて霧が
噴霧されるようにすると,鋳型空洞を形成するため一般
に複雑な表面構造を持つ原型板からの離型が改善され
る。It is of course also conceivable to introduce the atomized mixture by means of only one chamber plate 25 and various numbers and arrangements of spray nozzles 29. Furthermore, it is also possible in principle to provide the nozzle holes 26 in the two chamber plates 25, the top plate 23 or the bottom plate 24. A fog is directed toward one or both of the prototype plates 17 and 19.
When sprayed, it generally forms a mold cavity.
The release from the master plate with a complicated surface structure is improved.
It
【0025】更に,付加的に室板25の下側範囲にノズ
ル孔26が設けられており,これらのノズル孔は,特に
摩耗し易い底板24を,離型剤から成る薄層で湿潤させ
なければならない。In addition, nozzle holes 26 are additionally provided in the lower area of the chamber plate 25, which nozzle holes must be used to wet the particularly vulnerable bottom plate 24 with a thin layer of release agent. I have to.
【0026】図4は噴霧ノズル29の可能な配置を示し
ている。これらの噴霧ノズルの他に,室板25には更に
排気口40及び取付け孔41がある。FIG. 4 shows a possible arrangement of the spray nozzle 29. In addition to these spray nozzles, the chamber plate 25 further has an exhaust port 40 and a mounting hole 41.
【0027】噴霧装置30は次のように枠なし造型機1
0に組込まれている。液圧で操作されるピストン棒18
によつて外側原型板17を矢印bの方向に鋳型空間Fを
通して引き戻した後に,次の段階で,図2に示された案
内柱37及び図示されていない別の3つの案内柱37に
よつて内側原型板19が鋳型空間Fの開口15の方向に
移動せしめられる。鋳型空間Fが閉じられている時点に
噴霧装置30を作動させなければならないから,閉鎖位
置に達した際に,案内柱37と共同作用するリミツトス
イツチ36を介して電気パルスがプログラムを記憶可能
な制御装置35へ与えられる。この制御装置35によ
り,圧力制御装置32は弁箱31を介して噴霧ノズル2
9に少なくとも1つの圧縮空気衝撃を与え,この圧縮空
気衝撃により,鋳型空間側に設けられたノズル挿入片2
7は鋳型砂を除去されなければならない。必要に応じて
複数の圧縮空気衝撃も考えられることはもちろんであ
る。The spraying device 30 has the following frameless molding machine 1
It is built into 0. Hydraulically operated piston rod 18
After pulling the outer prototype plate 17 back through the mold space F in the direction of arrow b, the guide columns 37 shown in FIG. 2 and the other three guide columns 37 not shown are used in the next step. The inner prototype plate 19 is moved toward the opening 15 in the mold space F. Since the spraying device 30 has to be activated when the mold space F is closed, when the closed position is reached, an electric pulse can store the program via the limit switch 36 which cooperates with the guide post 37.
It is given to Do the control device 35. To the control device 35
The pressure control device 32 controls the spray nozzle 2 through the valve box 31.
Example given at least one compressed air impact to 9, by the compressed air impact, the nozzle insert 2 provided in the mold space side
7 must have the mold sand removed. Of course, multiple compressed air impacts are possible, if desired.
【0028】次の段階において,ノズルの吹払い(第1
のサイクル)の終了後に,いわゆる噴霧サイクル(第2
のサイクル)が行われる。この目的のために,高い圧力
(通常は4ないし10bar)で0.2ないし1.3秒
の時間にわたつて,噴霧装置により生ぜしめられた圧縮
空気・潤滑剤混合物が鋳型空間Fへ吹込まれる。プログ
ラムを記憶可能な制御装置35を介して,噴霧過程の時
間と,離型剤の添加量と,圧縮空気の圧力及び容積流量
が変えられる。プログラムを記憶可能な制御装置35を
介して個々の噴霧ノズル29を制御し又は例えば個々の
噴霧ノズル29のサイクル時間を延長することも可能で
ある。しかし重要なのは,噴霧サイクルが鋳型砂の吹込
み前に終了していることである。In the next stage, the blow-off of the nozzle (first
After the end of the so-called spray cycle (second cycle)
Cycle) is performed. For this purpose, the compressed air-lubricant mixture produced by the atomizer is blown into the mold space F at a high pressure (usually 4 to 10 bar) for a time of 0.2 to 1.3 seconds. Be done. Prog
The time of the atomization process, the amount of release agent added, the pressure and the volumetric flow rate of the compressed air can be varied via a control device 35 capable of storing the ram . It is also possible to control the individual spray nozzles 29 or to extend the cycle time of the individual spray nozzles 29, for example, via a control unit 35 in which the program can be stored . But what is important is that the spraying cycle ends before the mold sand is blown.
【0029】造型機10の動作サイクルは,前に述べた
吹払い又は噴霧サイクルにより中止されないので,鋳型
ブロツクの製造過程は妨げられない。The operating cycle of the molding machine 10 is not interrupted by the blow-off or spraying cycle described above, so that the process of manufacturing the mold block is not disturbed.
【図1】枠なし造型機の断面図である。FIG. 1 is a cross-sectional view of a frameless molding machine.
【図2】噴霧装置の説明図である。FIG. 2 is an explanatory diagram of a spray device.
【図3】ノズル孔の範囲における室板の拡大断面図であ
る。FIG. 3 is an enlarged cross-sectional view of a chamber plate in the range of nozzle holes.
【図4】側方室板の鋳型空間側の拡大図である。FIG. 4 is an enlarged view of a side chamber plate on the mold space side.
10 造型機 29 噴霧ノズル 30 噴霧装置 10 Molding machine 29 Spray nozzle 30 Spray device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 ハリー・ポスト ドイツ連邦共和国ラーデフオールムヴア ルト・トウ−フシユトラーセ38 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Harry Post Germany Radefu Olmwalt Tou-Fusyutrace 38
Claims (8)
の壁に設けられた少なくとも1つのノズルにより行われ
る,枠なし造型機の鋳型板を液状離型剤で湿潤させる方
法において,鋳型砂の封入前に,圧縮空気及び離型剤か
ら生じた霧が造型機の内部空間へ吹込まれかつ霧が微細
に分布されて鋳型板上に沈殿することを特徴とする,枠
なし造型機の鋳型板を湿潤させる方法。1. A method for wetting a mold plate of a frameless molder with a liquid mold release agent, wherein the mold sand is moistened by at least one nozzle provided in the wall of the molder in a closed molder. Mold of a frameless molding machine, characterized in that, before encapsulation of, the mist generated from the compressed air and the mold release agent is blown into the internal space of the molding machine and the mist is finely distributed and settles on the mold plate. How to moisten the board.
の圧縮空気衝撃によつて吹払われることを特徴とする,
請求項1に記載の方法。2. The nozzle is blown off by at least one compressed air impact before the mist is blown in,
The method of claim 1.
を介して移動可能な2つの原型板とを持ち,これらの板
にある少なくとも1つの孔に,離型剤用に設けられたノ
ズルが配置されている造型機において,ノズル(29)
の前に噴霧装置(30)が設けられており,この噴霧装
置が造型機(10)の運転経過に合わされて制御可能で
ある造型機。3. A bottom plate, a top plate, a side chamber plate, and two prototype plates movable via guide columns , and at least one hole in these plates, Nozzle (29) in a molding machine in which a nozzle provided for a release agent is arranged
A molding machine in which a spraying device (30) is provided in front of the spraying device, and the spraying device can be controlled according to the operation progress of the molding machine (10).
の目的のために,案内柱(37)に設けられたリミツト
スイツチ(36)と接続されていることを特徴とする,
請求項3に記載の造型機。4. A spraying device (30) for the purpose of control of the spray device, characterized in that it is connected to the Rimitsutosuitsuchi provided in the guide post (37) (36),
The molding machine according to claim 3.
間にプログラムを記憶可能な制御装置(35)が設けら
れており,この制御装置が圧力制御装置(32)及び弁
箱(31)との共同作用により噴霧過程の時間と,離型
剤の添加量と,圧縮空気の圧力及び容積流量とを変える
ことを特徴とする,請求項3又は4に記載の離型剤。5. A control device (35) capable of storing a program is provided between the spraying device and the limit switch (36), which control device cooperates with the pressure control device (32) and the valve box (31). The mold release agent according to claim 3 or 4, wherein the time of the spraying process, the amount of the mold release agent added, the pressure and the volumetric flow rate of the compressed air are changed by the action.
ようにノズル(29)が設けられていることを特徴とす
る,請求項3及び5のうち1つに記載の離型剤。6. The release agent according to claim 3, wherein nozzles (29) are provided so as to face the lateral chamber plates (25), respectively.
持つており,このノズル間隙を通つて,霧が少なくとも
1つの原型板(17,19)へ向けて噴霧されることを
特徴とする,請求項3ないし6のうち1つに記載の造型
機。7. The nozzle (29) has a nozzle gap (39) through which mist is sprayed towards at least one prototype plate (17, 19). The molding machine according to any one of claims 3 to 6.
成されていることを特徴とする,請求項3ないし7のう
ち1つに記載の造型機。8. Molding machine according to claim 3, characterized in that the nozzle gap (39) is only partially annularly formed.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4228749.9 | 1992-09-01 | ||
DE4228749A DE4228749C1 (en) | 1992-09-01 | 1992-09-01 | Boxless moulding machine - has a mist of release and lubricating agent sprayed against plates with compressed air before sand is shot in |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06198392A JPH06198392A (en) | 1994-07-19 |
JP2515239B2 true JP2515239B2 (en) | 1996-07-10 |
Family
ID=6466699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5245858A Expired - Fee Related JP2515239B2 (en) | 1992-09-01 | 1993-08-26 | Method and apparatus for wetting a mold plate of a frameless molding machine |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2515239B2 (en) |
DE (1) | DE4228749C1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK135193A (en) * | 1993-12-02 | 1995-06-03 | Dansk Ind Syndikat | Molding machine with liquid mist injection |
DE19735215A1 (en) * | 1997-08-14 | 1999-02-18 | Hottinger Maschb Gmbh | Apparatus and method for spraying a tool with a separating agent |
KR100949622B1 (en) * | 2005-06-13 | 2010-03-26 | 신토고교 가부시키가이샤 | Process for molding molding flask-free upper and lower casting molds, apparatus therefor and method for placing core |
DE102009010361B3 (en) * | 2009-02-25 | 2010-10-28 | Ks Aluminium-Technologie Gmbh | Method and spray device for applying a surface treatment agent to a mold wall of a casting mold |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2549043C2 (en) * | 1975-11-03 | 1977-12-08 | Gerlieva Sprüh- und Antriebstechnik Inh. Gerd Linbrunner, 7801 Ehrenkirchen | Spray and blow head |
DE2648170C3 (en) * | 1976-10-25 | 1981-03-19 | Gerlieva Sprüh- und Antriebstechnik Inh. Gerd Linbrunner, 7801 Ehrenkirchen | spray nozzle |
-
1992
- 1992-09-01 DE DE4228749A patent/DE4228749C1/en not_active Revoked
-
1993
- 1993-08-26 JP JP5245858A patent/JP2515239B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE4228749C1 (en) | 1993-06-09 |
JPH06198392A (en) | 1994-07-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2515239B2 (en) | Method and apparatus for wetting a mold plate of a frameless molding machine | |
CA2491452A1 (en) | Mold-removal casting method and apparatus | |
JP2005532169A5 (en) | ||
JPS62168654A (en) | Die casting device | |
JP6131106B2 (en) | Coating agent supply device for die casting machine | |
JP2002346698A (en) | Molding sand filling method and device for molding machine for flaskless-type horizontal-splitting mold | |
JPH04138861A (en) | Method for applying releasing agent to casting mold | |
CN106424597B (en) | Penetrate the full-automatic sand casting moulding machine sandblasting plate of sand up and down | |
JPS58148073A (en) | Method and device for stripping sand from casting | |
US3684000A (en) | Mold making device having blow nozzle | |
CN206316339U (en) | The full-automatic sand casting moulding machine sandblasting plate of sand is penetrated up and down | |
US5355929A (en) | Method of and apparatus for making casting moulds | |
CN206316332U (en) | The full-automatic hardened structure of sand casting moulding machine sandblasting of sand is penetrated up and down | |
JP3559989B2 (en) | Press working liquid spraying equipment | |
DE3717558C3 (en) | Process for making sand molds of models | |
CN1055890A (en) | The method and apparatus of compressing granular moulding materials | |
JP2014061536A (en) | Spray device | |
JP2750607B2 (en) | Injection sleeve lubrication method for die casting machine | |
JP3034784B2 (en) | Release agent spray device | |
CN106424594A (en) | Multifunctional sandblasting board for up-down sand shooting type full-automatic sand casting molding machine | |
JPH10127338A (en) | Perfume spraying mechanism | |
JPS6338064Y2 (en) | ||
JPH08103860A (en) | Method and device for preventing spatter of releasing agent | |
JPS58204829A (en) | Apparatus for applying lubricant to rough mold | |
JPS61470A (en) | Liquid atomization apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |