JPS59107746A - Forming device for vertically split casting mold by gas mold - Google Patents

Forming device for vertically split casting mold by gas mold

Info

Publication number
JPS59107746A
JPS59107746A JP57217423A JP21742382A JPS59107746A JP S59107746 A JPS59107746 A JP S59107746A JP 57217423 A JP57217423 A JP 57217423A JP 21742382 A JP21742382 A JP 21742382A JP S59107746 A JPS59107746 A JP S59107746A
Authority
JP
Japan
Prior art keywords
sand
hole
cylinder
mold
molding
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.)
Pending
Application number
JP57217423A
Other languages
Japanese (ja)
Inventor
Nagato Unosaki
鵜崎 永人
Yasutaro Kawamura
安太郎 河村
Shigehiro Toyoda
豊田 茂廣
Hironobu Amano
天野 浩伸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sintokogio Ltd
Shinto Industrial Co Ltd
Original Assignee
Sintokogio Ltd
Shinto Kogyo KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sintokogio Ltd, Shinto Kogyo KK filed Critical Sintokogio Ltd
Priority to JP57217423A priority Critical patent/JPS59107746A/en
Publication of JPS59107746A publication Critical patent/JPS59107746A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/12Treating moulds or cores, e.g. drying, hardening
    • B22C9/123Gas-hardening
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C15/00Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/28Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Devices For Molds (AREA)

Abstract

PURPOSE:To increase the packing density in a casting mold by forming a space part of a square cylindrical molding chamber and a pair of horizontally movable pattern plates, packing molding sand in the space part, and hardening the molding sand in the state of compressing the sand by a gushing cover. CONSTITUTION:Right and left cylinders 10, 12 are extended to load pattern plates 3, 4 provided with patterns 7, 7a into a pattern chamber 2, thereby forming a space part. A nozzle 17a of a blow head 17 is fitted by a cylinder 19 into a charging hole 2a for molding sand, and the open top part of a blow head 17 is closed by a cylinder 23. Molding sand S is then packed into the above-mentioned space part by compressed air. The sand S is further compressed by the cylinders 10, 12 and the head 17 is moved upward, whereafter the projecting object 24a of a gushing cover 24 is advanced to right above the hole 2a by a cylinder 26. The head 17 is loered to fit the object 24a into the hole 2a. Hardening gas is fed in this state through a supply hole 8 to the sand S and to harden the sand. The gas is discharged through a discharging hole 8a. The casting mold having a high packing density is thus obtd.

Description

【発明の詳細な説明】 本発明はガス硬化性の粘結剤を含葡した鋳物砂を使用し
て垂直割の主型を造型するのに好適なガス鋳型の垂直割
鋳型造型装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vertically split mold manufacturing apparatus for a gas mold suitable for molding a vertically split main mold using molding sand containing a gas-curing binder.

一般に、ガス硬化性の有機性粘結剤を含有した鋳物砂を
使用して成型した鋳型は、充填密度が低いために、ガス
硬化後も表面がぼろぼろした状態で、この鋳型を使用し
て鋳造した鋳造品はさし込み等の鋳造欠陥が発生し、鋳
型の表面に塗型剤を施す必要があった。そのために、能
率が悪く生産性があがらなかった。
Generally, molds made using molding sand containing a gas-curing organic binder have a low filling density, so even after gas-curing, the surface remains crumbly. The cast products produced by this method had casting defects such as insertion, and it was necessary to apply a coating agent to the surface of the mold. As a result, efficiency was poor and productivity did not increase.

本発明はこれらの問題点を解決することを目的とするも
のである。
The present invention aims to solve these problems.

以下に、本発明の構成を実施例に基づき説明する。(1
)は基台で、該基台(1)上面には、左0右方向に貫通
穿設する開口部を有し、かつ土壁中央に防砂の吹込孔(
2a)を備えた造型室(2)が固定して取付けられてい
る。該造型室(2)内には、1対の右型模型板(3)と
左型模型板(4)が嵌入して対向して設けられており、
該右型模型板(3)、および左型模型板(4)はそれぞ
れ内部に中空室(5ン(5a)を有し、かつ表面に該中
空室(5) (5a)に通じる通気孔(6) (6a)
を貫通穿設するとともに、表面中央部には模型(7) 
(7a)が装着され、さらに該右型模型板(3)の側壁
面には、該中空室(5)に連通して硬化ガスの供給孔(
8)が、また左型模型板(4)の側壁面には、該中空室
(5a)に連通して硬化ガスの排出孔(8a)がそれぞ
れ設けられている。そして、該右型模型板(3)の背面
には、基台(1)上面の支持部材(9)に横向きに取付
けられた右型シリンダ(10)のピストンロッド(:t
Oa )が連結してあり、また、左型模型板(4)の両
側壁面における支持腕(11)、(11) jこは、前
後方向に所定間隔をおいて水平状に配置された左型シリ
ンダ(12)のピストンロッド(12a)が連結しであ
るとともに、該左型シリンダ(12)、(12)は固定
フレーム(]3)に下向きに取付けられた持上げシリン
ダ(14)のピストンロッド(14a )先端に支持脚
(15)、(15)、連結支持板(16)を介して懸吊
支持されており、右型模型板(3)、および左型模型板
(4)はそれぞれ右型シリンダ(10)、或いは左型シ
リンダ(11)の作動により、水平方向に移動し造型室
(3)内に嵌入可能に設けられている。(17)は下面
中央にのぞきノズル(17a)を突設したブローヘッド
で、該ブローヘッド(17)は固定フレーム(18)に
下向きに取付けられた昇降シリンダ(19)のピストン
ロッド(19a)に支持部材(20)を介して懸吊支持
されており、昇降シリンダ(19)の作動により、該ブ
ローヘッド(17)は昇降動されるようになっている。
The configuration of the present invention will be explained below based on examples. (1
) is a base, and the upper surface of the base (1) has an opening that penetrates in the left and right directions, and a sand control blowing hole (
A molding chamber (2) with 2a) is fixedly mounted. Inside the molding chamber (2), a pair of right model plates (3) and left model plates (4) are fitted and provided facing each other,
The right model plate (3) and the left model plate (4) each have a hollow chamber (5a) inside, and a vent hole (5a) communicating with the hollow chamber (5) (5a) on the surface. 6) (6a)
A model (7) is installed in the center of the surface.
(7a) is attached, and furthermore, a curing gas supply hole (
8), and the side wall surface of the left model plate (4) is provided with a curing gas discharge hole (8a) which communicates with the hollow chamber (5a). On the back of the right model plate (3), a piston rod (:t
The support arms (11), (11) on both side walls of the left model plate (4) are connected to each other, and the support arms (11), (11) on both side walls of the left model plate (4) are the left model plates arranged horizontally at predetermined intervals in the front and back direction. The piston rods (12a) of the cylinders (12) are connected, and the left-hand cylinders (12), (12) are connected to the piston rods (12a) of the lifting cylinders (14) mounted downward on the fixed frame (3). 14a) It is suspended and supported at the tip via support legs (15), (15), and a connecting support plate (16), and the right model plate (3) and left model plate (4) are respectively attached to the right model plate. It is provided so that it can move horizontally and fit into the molding chamber (3) by the operation of the cylinder (10) or the left cylinder (11). (17) is a blow head with a peep nozzle (17a) protruding from the center of the lower surface, and the blow head (17) is attached to a piston rod (19a) of an elevating cylinder (19) that is attached downward to a fixed frame (18). The blow head (17) is suspended and supported via a support member (20), and is moved up and down by the operation of an elevating cylinder (19).

また、ブローヘッド(17)の上部開口部には、スライ
ドゲー) (21)が開閉可能に設けられ該スライドゲ
ート(21)はブローヘッド(17)の側壁面から突設
した支持フレーム(22)に水平状に取付けられたゲー
トシリンダ(23)のピストンロッド(23a)に連結
されていて、ゲートシリンダ(23)の作動により、該
スライドゲート(21)はブローヘッド(17)の上部
開口部を開閉できるようになっている。(24)は前記
鋳砂吹込孔(2a)に嵌入可能な突起物(24a)を下
面に突設したガツシング蓋(24)は固定フレーム(2
5)に揺動自在に水平支持されたガツシングシリンダ(
26)のピストンロッド(26m)に回動可能に連結さ
れていて、ガツシングシリンダ(26)の作動により、
該ガツシング蓋(24)は造型室(2)上面とブローヘ
ッド(17)下面との間を進・退自在に設けられている
。(27)は搬送台で、該搬送台(27)の上面は造型
室(2ンの内部下面と同一高さになるように設定してあ
って、該搬送台(27)上面には複数個の垂直割鋳型(
28)が端面を接して並べられている。該搬送台(27
)両側には、鋳型押えシリンダ(29)、(29)が対
向して設けてあって、そのピストンロッド(29a)、
(29a)先端には鋳型押え板(30)、(30)が固
着され、搬送台(27)上面に並べられた後端位置lこ
おける垂直割鋳型(28)の両側面を押圧把持できるよ
うになっている。
Further, a slide gate (21) is provided in the upper opening of the blow head (17) so as to be openable and closable, and the slide gate (21) is connected to a support frame (22) protruding from the side wall surface of the blow head (17). The slide gate (21) opens the upper opening of the blow head (17) by the operation of the gate cylinder (23). It can be opened and closed. (24) is a fixed frame (2
5) A gutsing cylinder (
26) is rotatably connected to the piston rod (26m), and by the operation of the gushing cylinder (26),
The gashing lid (24) is provided so as to be able to move forward and backward between the upper surface of the molding chamber (2) and the lower surface of the blow head (17). (27) is a conveyor table, and the upper surface of the conveyor table (27) is set to be at the same height as the inner lower surface of the molding chamber (2). Vertical split mold (
28) are arranged with their end faces in contact. The transport platform (27
) On both sides, mold holding cylinders (29), (29) are provided facing each other, and the piston rods (29a),
(29a) Mold holding plates (30), (30) are fixed to the tip so that they can press and hold both sides of the vertically split mold (28) at the rear end position l arranged on the top surface of the conveyor table (27). It has become.

次に、このように構成されたものの作動について説明す
る。ブローヘッド(17)内たガス硬化性の粘結剤を含
有した@物砂(S)を貯留した状態において右型、及び
左型シリンダ(10) (12)が伸長作動し、右型、
及び左型模型板(3)、(4)を造型室(2)内に嵌入
して該造型室(2)内に右型模型板(3)と左型模型板
(4)によって区画された密封状の空間部を形成すると
ともに、昇降シリンダ(19)゛の伸長作動により、ブ
ローヘッド(17)を下降しのぞきノズル(17a )
を鋳砂吹込口(2a)に嵌入する。
Next, the operation of the device configured as described above will be explained. While the blow head (17) contains the sand (S) containing a gas-hardening binder, the right and left cylinders (10) and (12) operate to extend.
And the left model plates (3) and (4) are fitted into the molding chamber (2), and the molding chamber (2) is partitioned by the right model plate (3) and the left model plate (4). While forming a sealed space, the elevating cylinder (19) is extended to lower the blow head (17) and open the peep nozzle (17a).
into the casting sand inlet (2a).

次いで、ゲートシリンダ(23)の伸長作動により、ブ
ローヘッド(17)の上部開口部を閉じたあと・ブロー
ヘッド(17)内に圧縮空気を供給しブローヘッド(1
7〕内の鋳物砂(S)を顔圧縮空気とともに密封状の前
記空間部に吹込み該圧縮空気を外部に排気し鋳物砂(S
)のみ充填する。該鋳物砂の吹込み充填後、右型シリン
ダ(10)、および左型シリンダ(12)をさらに伸長
作動して該空間部内の鋳物砂を両側から挟圧して該空間
部内の鋳物砂を所定の充填密度に圧縮する(第1図の状
態)。続いて、昇降シリンダ(19)の縮引作動により
、ブローヘッド(17)を上昇させるとともに、ガツシ
ングシリンダ(26)を伸長作動してガツシング蓋(2
4)を造型室(2)上面とブローヘッド(17)f′面
との間に進入させて突起物(24a)を鋳砂吹込孔(2
a)の直上に位置させたあと、昇降シリンダ(19)を
、再び伸長作動してブローヘッド(17)を下降させガ
ツシング蓋(24)を上面より押えつけてガツシング!
 (24)の突起物(24&)を鋳砂吹込孔(2a)に
嵌入させるとともに、右型模型板(3)の供給孔(8)
より硬化ガスを供給すると、該硬化ガスは中空室(5)
、通気孔(6)を経て該空間部内の所定密度に圧縮充填
された鋳物砂中に流入し該鋳物砂を硬化したあと、左型
模型板(4)の通気孔(6a)、中空室(5a)を介し
て排出孔(8a)から図示されない脱臭装置を通って大
気に排気される(第2図の状態)。そして、硬化ガスの
供給停止後、供給孔(8)より圧縮空気を吹込み該鋳物
砂中を貫流させて該鋳物砂中に残留した硬化ガスを略完
全に除去する。残留ガスを除去したあと昇降シリンダ(
19ンの縮引作動により、ブローヘッド(17)を上昇
してガツシング蓋(24)上面に作用している押付は力
を除去し、ガツシング蓋(24)の突起物(24&)と
吹込口(2a)との係合を解除するとともに、ガツシン
グシリンダ(26)の縮引作動によりガツシング蓋(2
4)を後退させる。
Next, after closing the upper opening of the blow head (17) by extending the gate cylinder (23), compressed air is supplied into the blow head (17) and the blow head (1
7] The foundry sand (S) inside is blown into the sealed space together with face compressed air, the compressed air is exhausted outside, and the foundry sand (S) is
) only. After the molding sand is blown and filled, the right cylinder (10) and the left cylinder (12) are further extended to compress the molding sand in the space from both sides, thereby compressing the molding sand in the space to a predetermined level. Compress to the packing density (state shown in Figure 1). Next, the blow head (17) is raised by retracting the elevating cylinder (19), and the gashing cylinder (26) is extended to open the gashing lid (2).
4) is inserted between the upper surface of the molding chamber (2) and the f' surface of the blow head (17), and the protrusion (24a) is inserted into the sand blowing hole (2).
After positioning it directly above a), the elevating cylinder (19) is extended again to lower the blow head (17), press the Gugging lid (24) from above, and Gugging!
Insert the protrusion (24 &) of (24) into the casting sand blowing hole (2a), and also insert the supply hole (8) of the right model plate (3).
When more hardening gas is supplied, the hardening gas enters the hollow chamber (5).
After flowing into the molding sand compressed and packed to a predetermined density in the space through the ventilation hole (6) and hardening the molding sand, the ventilation hole (6a) of the left model plate (4) and the hollow chamber ( 5a) and is exhausted to the atmosphere from the exhaust hole (8a) through a deodorizing device (not shown) (the state shown in FIG. 2). After the supply of hardening gas is stopped, compressed air is blown through the supply hole (8) and flows through the foundry sand, thereby almost completely removing the hardened gas remaining in the foundry sand. After removing residual gas, lift cylinder (
Due to the retracting action of the gasket 19, the blow head (17) is raised and the pressing force acting on the upper surface of the gashing lid (24) is removed, and the protrusion (24 &) of the gashing lid (24) and the air inlet (24) are removed. 2a), and the gashing cylinder (26) is retracted to open the gashing lid (2a).
4) Retract.

然る後、左型シリンダ(12)の縮引作動により、左型
模型板(4)を造型室(2)から外方に後退させて離型
するとともに持上げシリンダ(14)の縮引作動により
左型模型板(4)を造型室(2)から押出される鋳型と
干渉しない位置まで上昇する。次いで、右型シリンダ(
10)の伸長作動により、造型室(2)内の鋳型を造型
室(2)外方に押出し搬送台(27)上面に端面を接し
て並べられている垂直割鋳型(28)群の最後の鋳型端
面に接合するとともに、該鋳型群全体を1ピッチ分前進
移動させる。その後、鋳型押えシリンダ(29)の伸長
作動により、今回造型された垂直割鋳型(28)の両側
面を鋳型押え板(30)によって挾持するとともに、右
型シリンダ(10)の縮引作動により、右型模型板(3
)を元の位]aまで後退させる。つづいて、鋳型押えシ
リンダ(29)の縮引作動により、鋳型押Z 板(30
)を鋳型面から後退させ、以後前記操作を繰返す。
Thereafter, the left model plate (4) is retracted outward from the molding chamber (2) by the retracting operation of the left mold cylinder (12), and the left mold plate (4) is released from the mold by the retracting action of the lifting cylinder (14). The left model plate (4) is raised to a position where it does not interfere with the mold extruded from the molding chamber (2). Next, the right cylinder (
10), the mold in the molding chamber (2) is pushed out to the outside of the molding chamber (2) and the last of the vertically split molds (28) lined up with their end surfaces touching the upper surface of the conveyor table (27). It is joined to the end face of the mold, and the entire mold group is moved forward by one pitch. Thereafter, by the extension operation of the mold holding cylinder (29), both sides of the vertically split mold (28) that has been molded this time are clamped by the mold holding plate (30), and by the retracting operation of the right cylinder (10), Right model board (3
) is moved back to its original position ]a. Next, by retracting the mold presser cylinder (29), the mold presser Z plate (30
) is withdrawn from the mold surface, and the above operation is repeated thereafter.

以上の説明によって明らかなように、本発明によれば、
鋳型の充填密度は増大し、鋳型表面に塗型剤を施す必要
がないため、生産性は飛躍的に向上するとともに、鋳造
欠陥のない良好な鋳造品が得られるなどの効果を有し、
この種の業界に寄与する効果は著大である。
As is clear from the above description, according to the present invention,
The filling density of the mold increases and there is no need to apply a coating agent to the mold surface, which dramatically improves productivity and produces good quality cast products without casting defects.
The effect of contributing to this type of industry is significant.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の実施例を示す防砂吹込み時における一
部切欠正面図、第2図は本発明の実施例を示すガツシン
グ時における一部切欠正面図、第3図は第1図の平面図
である。 (2ン:造型室     (2aン:防砂吹込孔(3)
、(4):模型板  (5)、(5a) :中空室(6
)、(611) :通気孔   (8):供給孔(17
) ニブローヘッド  (17a) :のぞきノズル(
24) :ガッシング蓋 特許出願人 新車1業株式会b、
Fig. 1 is a partially cutaway front view showing an embodiment of the present invention during sand control blowing, Fig. 2 is a partially cutaway front view showing an embodiment of the present invention during gutting, and Fig. 3 is the same as Fig. 1. FIG. (2a: Molding room (2a: Sand control blowing hole (3)
, (4): Model board (5), (5a): Hollow chamber (6
), (611): Ventilation hole (8): Supply hole (17
) Nibrow head (17a): Peep nozzle (
24): Gussing lid patent applicant New Car 1 Industry Co., Ltd. b,

Claims (1)

【特許請求の範囲】[Claims] 上面に防砂吹込孔を備えた角筒状の造型室の中心線上に
おける両側に、内部に中空室を有し、かつfi面6と該
中空室と連通する通気孔を穿つとともに、該造型室内に
嵌入可能な大きさに設定された1対のJIJ型板を、水
平移動可能に対向して設は顔模型板のうち少なくとも一
方の模型板の壁面に、一方の該模型板の中空室に連通し
て硬化ガスの供給孔を設け、また該造型室の上方には、
該防砂吹込孔に嵌入可能なのぞきノズルを下面に突設し
たブローヘッドを、昇降移動可能に配設し、該ブローヘ
ッドと前記造型室の間には、ガツシング器を出・入可能
に設けたことを特徴とするガス鋳型の垂直割鋳型造型装
置。
A rectangular cylindrical molding chamber with a sand-proof blowing hole on the top surface has a hollow chamber inside on both sides on the center line, and a ventilation hole communicating with the FI surface 6 and the hollow chamber is bored, and a vent hole is bored inside the molding chamber. A pair of JIJ templates set to a size that can be inserted are installed horizontally movably facing each other, and communicate with the wall of at least one of the face model plates and into the hollow chamber of one of the model plates. A curing gas supply hole is provided above the molding chamber.
A blow head with a peep nozzle protruding from the lower surface that can be fitted into the sand prevention blow hole is disposed so as to be movable up and down, and a gassing device is provided between the blow head and the molding chamber so as to be movable in and out. A vertically split mold making device for gas molds, which is characterized by:
JP57217423A 1982-12-10 1982-12-10 Forming device for vertically split casting mold by gas mold Pending JPS59107746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57217423A JPS59107746A (en) 1982-12-10 1982-12-10 Forming device for vertically split casting mold by gas mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57217423A JPS59107746A (en) 1982-12-10 1982-12-10 Forming device for vertically split casting mold by gas mold

Publications (1)

Publication Number Publication Date
JPS59107746A true JPS59107746A (en) 1984-06-22

Family

ID=16703973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57217423A Pending JPS59107746A (en) 1982-12-10 1982-12-10 Forming device for vertically split casting mold by gas mold

Country Status (1)

Country Link
JP (1) JPS59107746A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732205A (en) * 1984-12-03 1988-03-22 Naniwa Products Co., Ltd. Moulding machine equipped with longitudinal laminating core boxes
EP0465930A2 (en) * 1990-06-29 1992-01-15 Sintokogio Ltd. Method and apparatus for compacting foundry molding materials
US5332025A (en) * 1990-03-20 1994-07-26 Dansk Industri Syndikat A/S Method of and apparatus for producing a series of casting molds or mold parts
CN104028704A (en) * 2014-06-05 2014-09-10 遵义久志通用机械有限公司 Automatic casting machine for stack boxes
JP2015171718A (en) * 2014-03-11 2015-10-01 ヨシワ工業株式会社 Die for molding cast

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732205A (en) * 1984-12-03 1988-03-22 Naniwa Products Co., Ltd. Moulding machine equipped with longitudinal laminating core boxes
US5332025A (en) * 1990-03-20 1994-07-26 Dansk Industri Syndikat A/S Method of and apparatus for producing a series of casting molds or mold parts
EP0465930A2 (en) * 1990-06-29 1992-01-15 Sintokogio Ltd. Method and apparatus for compacting foundry molding materials
US5148851A (en) * 1990-06-29 1992-09-22 Sintokogio Ltd. Method of charging sand and molding machine utilizing thereof
JP2015171718A (en) * 2014-03-11 2015-10-01 ヨシワ工業株式会社 Die for molding cast
CN104028704A (en) * 2014-06-05 2014-09-10 遵义久志通用机械有限公司 Automatic casting machine for stack boxes

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