JPH11277183A - Injection type mold forming machine - Google Patents
Injection type mold forming machineInfo
- Publication number
- JPH11277183A JPH11277183A JP10100391A JP10039198A JPH11277183A JP H11277183 A JPH11277183 A JP H11277183A JP 10100391 A JP10100391 A JP 10100391A JP 10039198 A JP10039198 A JP 10039198A JP H11277183 A JPH11277183 A JP H11277183A
- Authority
- JP
- Japan
- Prior art keywords
- blow head
- compressed air
- molding
- blow
- molding sand
- 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.)
- Granted
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は吹込み式鋳型造型機の改
良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a blow molding machine.
【０００２】[0002]
【従来の技術】従来、吹込み式鋳型造型機の一つとし
て、特開平６ー２７７８００号公報に開示されるよう
に、ブローヘッドと、このブローヘッドに吐出口が連通
されかつ複数個設けられて前記ブローヘッドとの連通状
態が並列的であって圧縮空気の圧力・流量を調整する調
整手段と、これらの調整手段の給気口に連通された圧縮
空気源と、を備えていて、ブローヘッドに圧縮空気を供
給してブローヘッド内の鋳物砂を枠部材内に吹き込み充
填し、その後、充填した鋳物砂を圧縮して鋳型を造型す
るようにしたものがある。2. Description of the Related Art Conventionally, as one of blow-molding molding machines, as disclosed in Japanese Patent Application Laid-Open No. Hei 6-277800, a blow head and a plurality of discharge ports are provided in communication with the blow head. Adjusting means for adjusting the pressure and flow rate of the compressed air in parallel with the blow head, and a compressed air source connected to the air supply ports of these adjusting means. There is a type in which molding air in a blow head is blown into a frame member by supplying compressed air to a head, and then the filled molding sand is compressed to form a mold.
【０００３】[0003]
【発明が解決しようとする課題】しかし、このように構
成された従来の吹き込み式鋳型造型機では、枠部材の大
きさに対応させてブローヘッドの容量を大きくすると、
ブローヘッド内の鋳物砂を枠部材内に吹き込みむ際、ブ
ローヘッド上部からの圧縮空気の供給だけでは、ブロー
ヘッド内の鋳物砂の流速が得られないため、鋳物砂を枠
部材内に十分に充填することができないなどの問題があ
った。However, in the conventional blow-molding molding machine configured as described above, when the capacity of the blow head is increased in accordance with the size of the frame member,
When the molding sand in the blow head is blown into the frame member, the flow of the molding sand in the blow head cannot be obtained only by supplying compressed air from the upper portion of the blow head. There were problems such as inability to fill.
【０００４】本発明は、上記の事情に鑑みて為されたも
ので、枠部材の大きさに対応させてブローヘッドの容量
を大きくしても、ブローヘッド内の鋳物砂が所定の流速
で流れる吹き込み式鋳型造型機を提供することを目的と
する。The present invention has been made in view of the above circumstances, and the molding sand in the blow head flows at a predetermined flow rate even when the capacity of the blow head is increased in accordance with the size of the frame member. An object of the present invention is to provide a blow molding machine.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めに本発明における吹き込み式鋳型造型機は、ブローヘ
ッドと、このブローヘッドに吐出口が連通されかつ複数
個設けられて前記ブローヘッドとの連通状態が並列的で
あって圧縮空気の圧力・流量を調整する調整手段と、こ
れらの調整手段の給気口に連通された圧縮空気源と、を
備えていて、前記ブローヘッドに圧縮空気を供給してブ
ローヘッド内の鋳物砂を枠部材内に吹き込み充填し、そ
の後、充填した鋳物砂を圧縮して鋳型を造型する吹き込
み式鋳型造型機において、前記ブローヘッドの内部のほ
ぼ中段位置には気体の通過可能な多数の通気孔を有する
筒状の仕切り板を上下両部で気密状に固着して配設して
中空室を画成し、この中空室を開閉機構を介して前記圧
縮空気源に接続したことを特徴とする。In order to achieve the above-mentioned object, a blow-molding molding machine according to the present invention comprises a blow head, a plurality of discharge ports communicating with the blow head, and a plurality of discharge ports provided. Adjusting means for adjusting the pressure and flow rate of the compressed air in parallel with each other, and a compressed air source connected to the air supply ports of these adjusting means. The molding sand in the blow head is supplied and blown and filled into the frame member. Is provided with a cylindrical partition plate having a large number of air holes through which gas can pass and fixed in airtight manner at both upper and lower portions to define a hollow chamber, and the hollow chamber is compressed through an opening / closing mechanism. Connect to air source It is characterized in.
【０００６】このように構成したものは、ブローヘッド
に所定の鋳物砂を投入し、続いて、開閉機構を開き中空
室に圧縮空気を供給して鋳物砂を圧縮空気で流動化した
後、ブローヘッドに圧縮空気を供給する。これにより、
鋳物砂を適確に枠部材内に吹き込むことができる。[0006] In such a construction, a predetermined molding sand is charged into a blow head, and then the opening and closing mechanism is opened to supply compressed air to the hollow chamber to fluidize the molding sand with the compressed air. Supply compressed air to the head. This allows
The casting sand can be properly blown into the frame member.
【０００７】[0007]
【発明の実施の態様】本発明の一実施例について縦断面
図である図１に基づき詳細に説明する。模型板としての
垂直状態のマッチプレート１が図示しない慣用の保持手
段で固定して配設してあり、マッチプレート１の左右両
側には、２個の枠部材２・３がそれぞれ左右方向へ移動
可能にして配設してあり、これら２個の枠部材２・３は
上壁部に砂吹込み口４・５をそれぞれ有している。ま
た、前記枠部材２・３の他端側には、圧縮板６・７がこ
れら枠部材２・３にそれぞれ入出可能にして配設してあ
り、圧縮板６・７は横向きのシリンダ８・９の伸縮作動
をよってそれぞれ左右方向へ往復移動するようになって
いる。また、前記マッチプレート１の上方には、ブロー
ヘッド１０が図示しない慣用の昇降手段で昇降可能にし
て配設してあり、ブローヘッド１０の下面には、前記枠
部材２・３の前記マッチプレートへの当接時に、前記砂
吹き込み口４・５に挿入可能なブローノズル１１・１２
が取付けある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to FIG. A vertical match plate 1 as a model plate is fixed and provided by conventional holding means (not shown), and two frame members 2 and 3 move in the left and right directions on the left and right sides of the match plate 1, respectively. The two frame members 2 and 3 have sand inlets 4 and 5 in the upper wall, respectively. At the other end of the frame members 2, 3, compression plates 6, 7 are provided so as to be able to enter and exit the frame members 2, 3, respectively. 9 are reciprocated in the left and right directions by the expansion and contraction operation of the actuator 9. A blow head 10 is provided above the match plate 1 so that the blow head 10 can be moved up and down by a conventional elevating means (not shown). Nozzles 11 and 12 that can be inserted into the sand blowing ports 4 and 5 at the time of contact with
There is installation.
【０００８】また、前記ブローヘッド１０の上部には、
連通管１３の一端が接続してあり、連通管１３の他端に
は圧縮空気の圧力、流量等を調節することができる複数
の調整手段１４の排気口が上下方向に並べて並列的に連
通してあり、これら調整手段１４の給気口は圧縮空気源
１５に接続されている。また、前記ブローヘッド１０の
内部のほぼ中段位置には、気体の通過可能な多数の通気
孔（図示せず）を有する筒状の仕切り板１６が、上下両
部で気密状に固着して配設してあって、中空室１７を画
成してあり、この中空室１７は、開閉機構１８を介して
前記圧縮空気源１５に接続してある。Also, on the upper part of the blow head 10,
One end of the communication pipe 13 is connected, and the other end of the communication pipe 13 is provided with exhaust ports of a plurality of adjusting means 14 capable of adjusting the pressure, flow rate, and the like of the compressed air, which are arranged vertically and communicate in parallel. The air supply ports of these adjusting means 14 are connected to a compressed air source 15. At a substantially middle position inside the blow head 10, a cylindrical partition plate 16 having a large number of gas holes (not shown) through which gas can pass is fixed in both upper and lower portions in an airtight manner. A hollow chamber 17 is defined, and the hollow chamber 17 is connected to the compressed air source 15 via an opening / closing mechanism 18.
【０００９】次に、このように構成した装置の動作につ
いて説明する。図１に示すように、垂直状態のマッチプ
レート１の左右両側に枠部材２・３をそれぞれ合わせ、
シリンダ８・９を所要長さ伸長作動して枠部材２・３の
他端側に圧縮板６、７をそれぞれ挿入して造型室ａ・ｂ
を画成する。また、ブローヘッド１０を下降させて枠部
材２・３の砂吹込み口４・５にブローノズル１１・１２
を挿入する。この状態のもとに、造型機を始動すると、
まず、開閉機構１８が開かれて圧縮空気源１５から中空
室１７に圧縮空気が供給され、中空室１７内の圧縮空気
は、仕切り部材１６の通気孔を通って鋳物砂内に進入
し、この鋳物砂を流動化させる。次いで、複数の調整手
段１４のうち所要数の調整手段１４が作動されて、圧縮
空気源１５からの圧縮空気がその作動された調整手段１
４を介して圧力、流量および供給時間を制御されてブロ
ーヘッド１０に供給される。Next, the operation of the above-configured device will be described. As shown in FIG. 1, the frame members 2 and 3 are respectively fitted to the left and right sides of the match plate 1 in a vertical state,
The cylinders 8 and 9 are extended to the required length, and the compression plates 6 and 7 are inserted into the other ends of the frame members 2 and 3, respectively, so that the molding chambers a and b are formed.
Is defined. Further, the blow head 10 is lowered to blow blow nozzles 11 and 12 into the sand blowing ports 4.5 of the frame members 2.3.
Insert In this state, when you start the molding machine,
First, the opening / closing mechanism 18 is opened to supply compressed air from the compressed air source 15 to the hollow chamber 17, and the compressed air in the hollow chamber 17 enters the molding sand through the ventilation hole of the partition member 16. Fluidize the foundry sand. Next, a required number of the adjusting means 14 among the plurality of adjusting means 14 are operated, and the compressed air from the compressed air source 15 is supplied to the operated adjusting means 1.
The pressure, the flow rate and the supply time are controlled via 4 and supplied to the blow head 10.
【００１０】この場合、この造型室ａ・ｂにおける前記
マッチプレート１の模型部と前記圧縮板６・７との間隔
に対応させて、前記ブローヘッド１０内に、圧縮空気
を、その圧力、流量、供給時間を適宜変化させて少なく
とも二回以上に分けて供給し、これにより、前記造型室
ａ・ｂのそれぞれの下部であって前記マッチプレート１
の模型部と前記圧縮板６・７との間隔が長い個所には鋳
物砂Ｓを高密度状態に充填し、続いて、前記造型室ａ・
ｂのそれぞれの中央部であって前記マッチプレート１の
模型部と前記圧縮板６・７との間隔が短い個所には鋳物
砂Ｓを低密度状態に充填し、その後、前記造型室ａ・ｂ
のそれぞれの上部であって前記マッチプレート１の模型
部と前記圧縮板６・７との間隔が長い個所には鋳物砂Ｓ
を高密度状態に充填する。In this case, compressed air is introduced into the blow head 10 at the pressure and flow rate corresponding to the distance between the model portion of the match plate 1 and the compression plates 6 and 7 in the molding chambers a and b. The supply time is appropriately changed and supplied at least twice or more, whereby the match plate 1 is provided at the lower part of each of the molding chambers a and b.
In a place where the distance between the model part and the compression plates 6 and 7 is long, molding sand S is filled in a high density state, and then the molding chamber a.
b is filled with molding sand S in a low-density state at a central portion where the distance between the model portion of the match plate 1 and the compression plates 6 and 7 is short, and then the molding chambers a and b
In the upper part of each of the parts where the distance between the model part of the match plate 1 and the compression plates 6 and 7 is long,
To a high density state.
【００１１】一方、鋳物砂Ｓと一緒に吹き込まれた圧縮
空気は、枠部材２・３の図示しないベントプラグから排
出される。次いで、さらにシリンダ８・９をそれぞれ伸
長作動して圧縮板６・７を前記マッチプレート１に近付
け、造型室ａ・ｂ内の鋳物砂Ｓをそれぞれ圧縮する。鋳
物砂Ｓの圧縮完了後、シリンダ８・９を収縮作動して圧
縮板６・７を枠部材２・３からそれぞれ抜き出し、続い
て、ブローヘッド１０を上昇させてブローノズル１１・
１２を砂吹込み口４・５からそれぞれ抜き出す。次い
で、慣用の手段により、枠部材２・３内の硬化した鋳物
砂Ｓをそれぞれ抜き出す。これにより、枠無しの上・下
鋳型を造型することができる。On the other hand, the compressed air blown together with the molding sand S is discharged from a not-shown vent plug of the frame members 2 and 3. Next, the cylinders 8 and 9 are further extended respectively to bring the compression plates 6 and 7 closer to the match plate 1 to compress the molding sand S in the molding chambers a and b, respectively. After the molding sand S is completely compressed, the cylinders 8.9 are contracted to extract the compression plates 6.7 from the frame members 2.3, respectively, and then the blow head 10 is raised to raise the blow nozzles 11.
12 is withdrawn from the sand inlets 4 and 5, respectively. Next, the hardened molding sand S in the frame members 2 and 3 is respectively extracted by conventional means. Thereby, the upper and lower molds without a frame can be formed.
【００１２】なお、上記の実施例において、マッチプレ
ート１の模型面がほぼ平坦状を成している場合には、ブ
ローヘッド１０内に供給する圧縮空気は、前記造型室ａ
・ｂについて、鋳物砂を下部に吹き込む時の圧力、流量
が上部に吹き込む時のそれより低くしても、同様の作用
効果が得られる。In the above embodiment, when the model surface of the match plate 1 is substantially flat, the compressed air supplied into the blow head 10 is supplied to the molding chamber a.
Regarding b, even if the pressure and the flow rate when the molding sand is blown into the lower part are lower than those when the molding sand is blown into the upper part, the same effect can be obtained.
【００１３】[0013]
【発明の効果】以上の説明から明らかなように本発明
は、ブローヘッドに圧縮空気を供給してブローヘッド内
の鋳物砂を枠部材内に吹き込み充填し、その後、充填し
た鋳物砂を圧縮して鋳型を造型する吹き込み式鋳型造型
機において、前記ブローヘッドの内部のほぼ中段位置に
は気体の通過可能な多数の通気孔を有する筒状の仕切り
板を上下両部で気密状に固着して配設して中空室を画成
し、この中空室を開閉機構を介して前記圧縮空気源に接
続したにしたから、ブローヘッド内の鋳物砂を流動化す
ることができるため、枠部材の大きさに対応させてブロ
ーヘッドの容量を大きくしても、ブローヘッド内の鋳物
砂が所定の流速で流れるため、鋳物砂を枠部材内に十分
に充填することができるなどの優れた効果を奏する。As is apparent from the above description, the present invention supplies compressed air to the blow head to blow and fill the molding sand in the blow head into the frame member, and then compresses the filled molding sand. In a blow-molding molding machine for molding a mold, a cylindrical partition plate having a large number of gas holes through which gas can pass is substantially hermetically fixed at both upper and lower portions at a substantially middle position inside the blow head. Since the hollow chamber is arranged to define the hollow chamber and the hollow chamber is connected to the compressed air source via the opening / closing mechanism, the molding sand in the blow head can be fluidized. Even if the capacity of the blow head is increased correspondingly, since the molding sand in the blow head flows at a predetermined flow rate, there is an excellent effect that the molding sand can be sufficiently filled in the frame member. .
【図１】本発明の一実施例を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.
１０ ブローヘッド １４ 調整手段 １５ 圧縮空気源 １６ 仕切り板 １７ 中空室 １８ 開閉機構 DESCRIPTION OF SYMBOLS 10 Blow head 14 Adjusting means 15 Compressed air source 16 Partition plate 17 Hollow chamber 18 Opening / closing mechanism
Claims (1)
１０に吐出口が連通されかつ複数個設けられて前記ブロ
ーヘッド１０との連通状態が並列的であって圧縮空気の
圧力・流量を調整する調整手段１４と、これらの調整手
段１４の給気口に連通された圧縮空気源１５と、を備え
ていて、前記ブローヘッド１０に圧縮空気を供給してブ
ローヘッド１０内の鋳物砂を枠部材内に吹き込み充填
し、その後、充填した鋳物砂を圧縮して鋳型を造型する
吹込み式鋳型造型機において、前記ブローヘッド１０の
内部のほぼ中段位置には気体の通過可能な多数の通気孔
を有する筒状の仕切り板１６を上下両部で気密状に固着
して配設して中空室１７を画成し、この中空室１７を開
閉機構１８を介して前記圧縮空気源１５に接続したこと
を特徴とする吹き込み式鋳型造型機。An adjustment for adjusting a pressure and a flow rate of compressed air, wherein a plurality of discharge ports are provided in the blow head and a plurality of discharge ports are provided in the blow head, and a communication state with the blow head is parallel. Means 14 and a compressed air source 15 connected to the air supply ports of these adjusting means 14, and supplies compressed air to the blow head 10 to reduce the molding sand in the blow head 10 to the inside of the frame member. In a blow mold molding machine for molding a mold by compressing the filled molding sand and then molding the filled molding sand, the blow head 10 has a large number of air holes at a substantially middle position inside the blow head 10 through which gas can pass. A hollow partition 17 is defined by fixing a cylindrical partition plate 16 at both upper and lower portions in an airtight manner, and the hollow partition 17 is connected to the compressed air source 15 via an opening / closing mechanism 18. Characteristic blow Type mold making machine.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10039198A JP3332214B2 (en) | 1998-03-27 | 1998-03-27 | Blow molding machine |
| DE19913119.8A DE19913119B4 (en) | 1998-03-27 | 1999-03-23 | Process for producing a sand mold |
| US09/791,001 US20010009184A1 (en) | 1998-03-27 | 2001-02-22 | Blow molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10039198A JP3332214B2 (en) | 1998-03-27 | 1998-03-27 | Blow molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11277183A true JPH11277183A (en) | 1999-10-12 |
| JP3332214B2 JP3332214B2 (en) | 2002-10-07 |
Family
ID=14272703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10039198A Expired - Fee Related JP3332214B2 (en) | 1998-03-27 | 1998-03-27 | Blow molding machine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20010009184A1 (en) |
| JP (1) | JP3332214B2 (en) |
| DE (1) | DE19913119B4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476169A (en) * | 2010-11-26 | 2012-05-30 | 新东工业株式会社 | Method for green sand molding |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4697609B2 (en) * | 2007-01-16 | 2011-06-08 | 新東工業株式会社 | Foundry sand casting type mold making equipment |
| CN104399904B (en) * | 2014-12-18 | 2017-01-04 | 苏州明志科技有限公司 | The controlled sand shooting mechanism of a kind of core shooter and penetrate sand method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE557503C (en) * | 1931-02-08 | 1932-08-24 | Masch U Werkzeugfabrik Kabel | Method and molding machine for filling molding and core boxes with molding sand using compressed air |
| US4460032A (en) * | 1982-01-25 | 1984-07-17 | Pettibone Corporation | Method and apparatus for blowing cores etc. using a plunger-cleaned blow box suitable for quick-set sand |
| JP3092764B2 (en) * | 1993-03-26 | 2000-09-25 | 新東工業株式会社 | Blow molding method |
-
1998
- 1998-03-27 JP JP10039198A patent/JP3332214B2/en not_active Expired - Fee Related
-
1999
- 1999-03-23 DE DE19913119.8A patent/DE19913119B4/en not_active Expired - Lifetime
-
2001
- 2001-02-22 US US09/791,001 patent/US20010009184A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102476169A (en) * | 2010-11-26 | 2012-05-30 | 新东工业株式会社 | Method for green sand molding |
| EP2457677A1 (en) | 2010-11-26 | 2012-05-30 | Sintokogio, Ltd. | A method for green sand molding |
| US8672017B2 (en) | 2010-11-26 | 2014-03-18 | Sintokogio, Ltd | Method for green sand molding |
Also Published As
| Publication number | Publication date |
|---|---|
| US20010009184A1 (en) | 2001-07-26 |
| JP3332214B2 (en) | 2002-10-07 |
| DE19913119B4 (en) | 2016-07-28 |
| DE19913119A1 (en) | 1999-09-30 |
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