JPH01266943A - Apparatus for molding green sand core - Google Patents

Apparatus for molding green sand core

Info

Publication number
JPH01266943A
JPH01266943A JP63093682A JP9368288A JPH01266943A JP H01266943 A JPH01266943 A JP H01266943A JP 63093682 A JP63093682 A JP 63093682A JP 9368288 A JP9368288 A JP 9368288A JP H01266943 A JPH01266943 A JP H01266943A
Authority
JP
Japan
Prior art keywords
mold
core
stepped
compressed
desired core
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
Application number
JP63093682A
Other languages
Japanese (ja)
Other versions
JPH0667532B2 (en
Inventor
Nagato Unosaki
鵜崎 永人
Isao Atsumi
渥美 猪三男
Hisashi Harada
久 原田
Kazuo Sugimoto
杉本 和男
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
Original Assignee
Sintokogio Ltd
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 filed Critical Sintokogio Ltd
Priority to JP63093682A priority Critical patent/JPH0667532B2/en
Publication of JPH01266943A publication Critical patent/JPH01266943A/en
Publication of JPH0667532B2 publication Critical patent/JPH0667532B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To enable molding of a core with step having uniform strength and good dimensional accuracy by push-compressing part packed in recessed part with step in a preforming body into the desired core shape from upper and lower sides and molding the desired core. CONSTITUTION:A cavity shaped with upper and lower metallic molds 21, 4, compressed lower mold 6 and blow metallic mold 31 is made to the state forming the recessed parts having excess thickness for compression at upper and lower parts of the recessed parts 5, 22 having the same shape as outer shape of the desired core C. Successively, by working a blow tank 30, the green sand is blown and packed into the cavity, and a preforming body having a little larger than the desired core C to upper and lower directions is molded. Successively, the compressed upper mold 23 is positioned at upper part of the upper metallic mold 21 and stopped. Further, a downward cylinder 36 is worked as extending and after inserting the compressed upper mold 23 into the penetrating hole with step of the upper metallic mold 21, a squeeze cylinder 8 is worked as extending, too. By this method, the compressed upper and lower molds 23, 6 are further inserted into penetrating holes with step and the stoppers 35, 10 are abutted on the upper and lower metallic molds 21, 4, respectively, and extending work is stopped. By this working, the preforming body is compressed to the excess parts with the compressed upper and lower molds 23, 6 to compress and form to the desired core C shape.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、生砂中子の造型装置に関し、更に詳しくは、
中央部と端部とで太さが大きく異なる段付形状の中子又
はこの段付形状のものを屈曲させた形状の中子(以下雨
中子を段付中子という)を造型する装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a green sand core molding device, and more specifically,
The present invention relates to an apparatus for molding a stepped-shaped core whose thickness differs greatly between the center and end portions, or a stepped-shaped core that is bent (hereinafter referred to as a "stepped core").

(従来技術) 中子は主として強度上及び寸法精度上の理由からシェル
モールド法、コールドボックス法、CO2法などにより
造型されるのが通例であるが、このような方法で作られ
た中子は高価であると共に生砂から成る主型とは材質を
異にするため注湯後の砂再生処理上問題がある。このた
め近時主型と同じ生4gを用いて中子を造型する方法が
種々試みられており、比較的単純な形状の中子について
は実用に供し得るものが造型されるようになっている(
例えば特開昭55−139143号公報特開昭57−1
95555号公報)。しかし、段伺中子について均一な
強度と良好な寸法精度を備えたものを造型することは困
難であった。
(Prior art) Cores are usually molded by shell molding, cold box method, CO2 method, etc. mainly for reasons of strength and dimensional accuracy, but cores made by these methods are It is expensive and the material is different from that of the main mold, which is made of green sand, so there are problems with the sand recycling process after pouring. For this reason, various methods of molding cores using the same raw 4g as the main mold have recently been attempted, and cores of relatively simple shapes that can be used for practical purposes have been molded. (
For example, JP-A-55-139143, JP-A-57-1
95555). However, it has been difficult to mold a stepped core with uniform strength and good dimensional accuracy.

(発明の目的) 本発明は上記のような事情に鑑みてなされたものであり
、均一な強度と良好な寸法精度を備えた段伺中子を造型
する装置を促供せんとするものである。
(Object of the Invention) The present invention has been made in view of the above-mentioned circumstances, and it is an object of the present invention to provide an apparatus for molding a stepped core having uniform strength and good dimensional accuracy. .

(発明の構成) 以下本発明の構成を図示例により詳しく説明すると、(
1)は図示されないフレームに」二向きに取付けられた
上向シリンダでそのピストンロッド先端には、上面に凹
部(2)を有するテーブル(3)が固着されている。該
テーブル(3)の四部(2)における」一端部には下金
型(4)が固着されていて、該下金型(4)には所望中
子(C)の]−′半部分の形状に対応する段付凹部(5
)が形成されていると共に該段付凹部(5)の下端部に
は後述する圧縮下型(6)を−上方から嵌入可能にした
段イ」貫通穴(′r)が穿っである(第2図参照) 更に前記テーブル(3’)の凹部(2)には−1−向き
のスクイズシリンダ(8)力々立設されていて、該スク
イスジリンダ(8)のピストンロッド先端にはテーブル
(9)が固着されている。該テーブル(9)−[二には
前記圧縮下型(6)が固着されていて、前記段付旧通穴
(7)に摺動自在に嵌合されている。尚該圧縮下型C6
)の−1−面は、前記下金型(4)の段付貫通穴(7)
上端(ストッパ(10)が下金型(4)に当接した状態
)に達して前記段イ」四部(5)とにより連続した円形
面を形成する段イ」の凹み円弧面に形成されている。
(Structure of the Invention) The structure of the present invention will be explained in detail below using illustrated examples.
1) is an upward cylinder mounted in two directions on a frame (not shown), and a table (3) having a recess (2) on the upper surface is fixed to the tip of the piston rod. A lower mold (4) is fixed to one end of the fourth part (2) of the table (3), and a half of the desired core (C) is fixed to the lower mold (4). Stepped recess corresponding to the shape (5
) is formed in the lower end of the stepped recess (5), and a stepped through hole ('r) into which a compression mold (6), which will be described later, can be inserted from above. (See Figure 2) Furthermore, in the recess (2) of the table (3'), a squeeze cylinder (8) in the -1- direction is firmly installed, and the table is attached to the tip of the piston rod of the squeeze cylinder (8). (9) is fixed. The compression lower mold (6) is fixed to the table (9)-[2], and is slidably fitted into the stepped old through hole (7). In addition, the compression lower mold C6
) is the stepped through hole (7) of the lower mold (4).
It is formed in the concave arcuate surface of the step A' which reaches the upper end (the state in which the stopper (10) is in contact with the lower mold (4)) and forms a continuous circular surface with the four parts (5) of the step A. There is.

前配下金型(4)の外側には生砂主型移送用のローラコ
ンベヤ(11)が適当な間隔をおいて前後方向に延設さ
れており、該ローラコンベヤ(11)上には定盤(12
)を介して枠C1,3)イu+の生砂主型(14)が載
置されている。また、該ローラコンベヤ(11)の下方
には、上向シリンダ(15)が配設されていて、そのピ
ストンロッド先端には該ローラコンベヤ(11)の空間
部を昇降できる外形を成した押上板(16)が固着され
ている。
On the outside of the front subordinate mold (4), a roller conveyor (11) for transporting the green sand main mold is installed at an appropriate interval in the front-rear direction, and a surface plate is mounted on the roller conveyor (11). (12
) The green sand main mold (14) of the frame C1, 3) iu+ is placed through the frame C1. Further, an upward cylinder (15) is disposed below the roller conveyor (11), and the tip of the piston rod has a push-up plate having an external shape that can move up and down the space of the roller conveyor (11). (16) is fixed.

更に前記下金型(4)の上方位置とローラコンベヤ(1
1)の−に方位置とを結ふ゛線−1−位1iqには下部
中抜ローラコンベヤ(17)が配置されていて、該中抜
ローラコンベヤ(17)にはシリンダ(18)に連結さ
れて、ローラコンベヤ(11)と対応する位置と、下金
型(4)に対応する位置の間を往復移動する走行フレー
ム(19)が載置されている。該走行フレーム(19)
にはその外周部にフランジ(20)を備えた上金型(2
1)が該フランジ(20)を介して切り離し可能に係合
して吊り下げられている。尚該−[−金型(21)には
所望中子(C)の上半部分の形状に対応する段付凹部(
22)が形成されていると共に該段付凹部C22)の上
端部には後述のブロー金型及び圧縮−■−型(23)を
上方から嵌入可能にした段付貫通穴(24)が穿っであ
る。
Furthermore, the upper position of the lower mold (4) and the roller conveyor (1)
A lower hollow roller conveyor (17) is arranged at the line -1- position 1iq connecting the - direction position of 1), and the hollow roller conveyor (17) is connected to a cylinder (18). , a traveling frame (19) is mounted that reciprocates between a position corresponding to the roller conveyor (11) and a position corresponding to the lower mold (4). The running frame (19)
has an upper mold (2) with a flange (20) on its outer periphery.
1) are releasably engaged and suspended via the flange (20). The -[- mold (21) has a stepped recess (21) corresponding to the shape of the upper half of the desired core (C).
22) is formed, and the upper end of the stepped recess C22) is provided with a stepped through hole (24) into which a blow mold and compression mold (23), which will be described later, can be inserted from above. be.

前記1・一部中抜ローラコンベヤ(17)の上方には該
コンベヤC17)と同一方向に延ひる一■二部中抜ロー
ラコンベヤ(25)が鵬けられていて、該上部中抜ロー
ラコンベヤ(25)には前記、下金型(4)に対応する
位置からローラコンベヤ(11)に対応する位置に到る
長さの枠状の走行フレーム(26)が」−下動不可の状
態にしかつシリンダ(27)に連結されて往復走行可能
にして係合されている。
Above the one-part hollow roller conveyor (17), a one- and two-part hollow roller conveyor (25) extending in the same direction as the conveyor C17) is installed, and the upper hollow roller conveyor In (25), the frame-shaped traveling frame (26) having a length from the position corresponding to the lower mold (4) to the position corresponding to the roller conveyor (11) is in a state where it cannot move downward. It is also connected to and engaged with the cylinder (27) so that it can move back and forth.

該走行フレーム(26)にはリンク(28)を介して連
結された2つの支持フレーム(29a)(29b)がそ
の中心を前記下金型(4)の中心と、ローラコンベヤ(
11)の中心との間隔と同じ間隔にして固着されている
Two support frames (29a) (29b) connected to the traveling frame (26) via links (28) have their centers aligned with the center of the lower mold (4) and the roller conveyor (
11) and are fixed at the same distance from the center.

該支持フレーム(29a)には、ブロータンク(30)
が該支持フレーム(29a)を上下に貫通した形で固着
されていて、該ブローへノド(30)の下部にはブロー
金型(31)が取り付けられている。
The support frame (29a) includes a blow tank (30).
are fixed to the support frame (29a) so as to pass through the support frame (29a) up and down, and a blow mold (31) is attached to the lower part of the blow nozzle (30).

該ブロー金型C31)は前記−上金型(21)の段付貫
通穴(24)に嵌入可能な外形を成していると共にその
下面はストッパー(32)が上金型(21)に当接する
まで嵌入されて上金型(21)の段付貫通穴(24)の
中間位置にくる寸法に形成されている。尚図中(33)
はスライドゲート、(34)は砂吹込み孔、(35)は
排気孔である。
The blow mold C31) has an external shape that can be fitted into the stepped through hole (24) of the upper mold (21), and the stopper (32) on the lower surface is in contact with the upper mold (21). It is formed in such a size that it is inserted until it makes contact and comes to the middle position of the stepped through hole (24) of the upper mold (21). In the figure (33)
is a slide gate, (34) is a sand blowing hole, and (35) is an exhaust hole.

更に、前記支持フレーム(29b)には下向シリンダ(
36)が該支持フレーム(29b)を上下に貢通した形
で固着されていて、該下向シリンダ(36)のピストン
ロッド先端には取付板(37)を介して前記圧縮上型C
23)が固着されている。該圧縮上型(23)は、前記
上金型(21)の段付貫通穴(24)に嵌入可能な外形
を成していると共にその下面は、該圧縮上型(23)が
前記上金型C21)の段付貫通穴(24)下端(圧縮上
型(21)のストッパ(38)が上金型(21)に当接
した状態)に達して前記段付凹部(22)とにより連続
した円形面を形成する段付の凹み円形面に形成されてい
る。尚図中(39)は図示されない真空ポンプ及び圧縮
空気源に切替連通される吸着押出孔である。
Furthermore, the support frame (29b) has a downward cylinder (
36) are fixed to the support frame (29b) in a vertically extending manner, and the compression upper mold C is attached to the tip of the piston rod of the downward cylinder (36) via a mounting plate (37).
23) is fixed. The compression upper mold (23) has an outer shape that can be fitted into the stepped through hole (24) of the upper mold (21), and the lower surface of the compression upper mold (23) The stepped through hole (24) of the mold C21) reaches the lower end (the state in which the stopper (38) of the compression upper mold (21) is in contact with the upper mold (21)) and is continuous with the stepped recess (22). It is formed into a stepped concave circular surface that forms a circular surface. Note that (39) in the figure is an adsorption extrusion hole which is switched and communicated with a vacuum pump and a compressed air source (not shown).

(発明の作用) 以」二のように構成されたものは、第1図の状態におい
て下向シリンダ(36)を縮引作動させて圧縮上型(2
3)を上金型(21)の段付貫通穴(24)から抜き出
し、シリンダCl8)を伸長作動させて上金型(21)
を走行フレーム(19)を介して下金型(4)の直上位
置に移動させるC鎖線図参照) 次に上向シリンダ(1)を伸長作動させて下金型(4)
と上金型(21)との型合せをし、さらに上金型(21
)を走行フレーム(19)から持ち上げてブロー金型(
31)を上金型(21)の段付貫通穴(24)に嵌入さ
せストッパ(32)が」−金型(21)に当接されて上
向シリンダ(1)の作動が停止される。
(Operation of the Invention) In the device configured as shown in Figure 1, the downward cylinder (36) is retracted to compress the upper mold (2).
3) from the stepped through hole (24) of the upper mold (21), and extend the cylinder Cl8) to remove the upper mold (21).
(See C chain diagram) Next, extend the upward cylinder (1) to move the lower mold (4) to a position directly above the lower mold (4) via the traveling frame (19).
and the upper mold (21), and then the upper mold (21).
) from the traveling frame (19) and place it in the blow mold (
31) is inserted into the stepped through hole (24) of the upper mold (21), the stopper (32) comes into contact with the mold (21), and the operation of the upward cylinder (1) is stopped.

この際、」二下金型(21)(4)、圧縮下型(6)及
びブロー金型(31)で画成されるキャビティは所望中
子(C)の外形形状と同じ形状の段付凹部(5)(22
)の上下に圧縮代分の凹部を形成した状態にされる。
At this time, the cavity defined by the lower two molds (21) (4), the lower compression mold (6), and the blow mold (31) is stepped with the same external shape as the desired core (C). Recess (5) (22
) are formed with recesses corresponding to the compression allowance above and below.

このような状態でブロータンクC30)を作動させて生
砂を前記キャビティ内に吹込み充填し、所望中子(C)
より上下に若干拡大された予備成形体を造型してブロー
タンク(30)の作動を停止する。この際吹き込まれた
圧縮空気は排気孔(35)から排出される。
In this state, the blow tank C30) is operated to blow and fill green sand into the cavity to form the desired core (C).
A preformed body slightly enlarged vertically is molded, and the operation of the blow tank (30) is stopped. The compressed air blown at this time is discharged from the exhaust hole (35).

次に上向シリンダ(1)を縮引作動させて上金型(21
)とブロー金型(31)との嵌合をはずした状態で上向
シリンダ(1)の作動を一時停止する。(この際予備成
形体はブロー金型(31)から分離される)次にシリン
ダ(27)を伸長作動させてブロータンク(30)を上
金型(21)の外方(第1図で左側)に移動させると同
時に圧縮上型(23)を上金型(21)の上方に位置さ
せて停止する。
Next, the upward cylinder (1) is retracted and the upper mold (21
) and the blow mold (31) are disengaged, and the operation of the upward cylinder (1) is temporarily stopped. (At this time, the preform is separated from the blow mold (31).) Next, the cylinder (27) is extended and the blow tank (30) is moved to the outside of the upper mold (21) (on the left side in Fig. 1). ), and at the same time, the compression upper mold (23) is positioned above the upper mold (21) and stopped.

次に下向シリンダ(36)を伸長作動させ圧縮上型(2
3)を上金型(21)の段付貫通穴(24)内に嵌入さ
せた後スクイズシリンダ(8)も伸長作動させる。これ
により圧縮上下型(23’) (6)は段付貫通穴(2
4)(7)内に更に嵌入されて、ストッパC38)(1
0)がそれぞれ上下金型(21)C4)に当接して伸長
作動が停止される。この作動により前記予備成形体は圧
縮代分が圧縮上下型(23)(6)により圧縮されて所
望中子(C)の形状に圧縮造型される。
Next, the downward cylinder (36) is operated to extend and compress the upper mold (2).
3) into the stepped through hole (24) of the upper mold (21), the squeeze cylinder (8) is also activated to extend. As a result, the compression upper and lower mold (23') (6) has a stepped through hole (2
4) It is further fitted into (7) and the stopper C38) (1
0) come into contact with the upper and lower molds (21) C4), respectively, and the extension operation is stopped. Through this operation, the preform is compressed by the compression allowance by the upper and lower compression molds (23) and (6), and is compression-molded into the shape of the desired core (C).

次に吸着押出孔(39)を図示されない真空ポンプに連
通した状態にして、下向シリンダ(36)を伸長−9= 作動させると共に上向シリンダ(1)を縮引作動させる
。この作動により上金型(21)が下部中抜ローラコン
ベヤ(17) J−の走行フレーム(19)内にもどさ
れ造型された所望中子(C)は圧縮上型(23)の吸着
押出孔(39)からの吸引作用を受けて上金型(21)
側に吸着され、下金型(4)は上金型(21)から分離
さ  。
Next, the suction extrusion hole (39) is brought into communication with a vacuum pump (not shown), and the downward cylinder (36) is operated to extend -9=, and the upward cylinder (1) is operated to retract. Through this operation, the upper mold (21) is returned to the lower hollow roller conveyor (17) and into the running frame (19) of J-, and the desired molded core (C) is pushed out through the suction extrusion hole of the compression upper mold (23). The upper mold (21) receives suction from (39).
The lower mold (4) is separated from the upper mold (21).

れる。It will be done.

次にシリンダ(18)及びシリンダ(27)が同調縮引
作動をして上金型(21)及びシリンダ(36)に吊設
された圧縮上型(23)並びに吸引吸着されている所望
中子(C)をローラコンベヤ(11)の直上位置に移動
させる。
Next, the cylinder (18) and the cylinder (27) perform a synchronized contraction operation to compress the upper mold (21) and the compression upper mold (23) suspended from the cylinder (36), and the desired core that is suctioned. (C) is moved to a position directly above the roller conveyor (11).

この間にローラコンベヤ(11)上では所望中子(C)
をセットシた生砂主型C14)が次工程へ送り出され、
中子を七yトシていない生砂主型(14)が上金型(2
1)停止位置下方に移動されてきている。
During this time, the desired core (C) is placed on the roller conveyor (11).
The green sand main mold C14) that has been set is sent to the next process,
The green sand main mold (14) with no core removed is the upper mold (2).
1) The stop position has been moved downward.

次に上向シリンダ(15)を伸長作動させて枠(13)
付生砂主型(14)を押上板(16)を介して上昇させ
、所望中子(C)が生砂主型(14)のキャビティ内に
若干の隙間をおいて位置される状態にされてその伸長作
動が停止される。
Next, operate the upward cylinder (15) to extend the frame (13).
The green sand main mold (14) is raised through the push-up plate (16), and the desired core (C) is placed in the cavity of the green sand main mold (14) with a slight gap. The extension operation is then stopped.

次龜吸着押出孔(39)が圧縮空気源に連通ずるように
切り替えられ、所望中子(C)は、下方向への圧力を受
けて」二金型(21)及び圧縮上型(23)から押し出
されて生砂上型(14)の所定位置にセットされろ。
The second adsorption extrusion hole (39) is switched to communicate with the compressed air source, and the desired core (C) receives downward pressure from the two molds (21) and the compression upper mold (23). It is pushed out and set in a predetermined position in the green sand upper mold (14).

次に、」二向シリンダ(15)が縮引作動されて、生砂
主型(14)がローラコンベヤ(11)上に復帰されて
第1図の状態となり以後前述の作動をくりかえし行うの
である。
Next, the two-way cylinder (15) is retracted, and the green sand main mold (14) is returned onto the roller conveyor (11), resulting in the state shown in Fig. 1, and the above-mentioned operation is repeated thereafter. .

尚−1一記実施例においては上金型(21)及び圧縮上
型(23)に保持された中子を生砂主型(14)により
直接受は止めて中子の抜型取り出しと中子セットを同時
に行うようにしているが中子を受皿等で一旦受は取った
後に手作業により中子を生砂主型(14)にセットする
ようにしてもよい。
In addition, in the embodiment -1, the core held in the upper mold (21) and the compression upper mold (23) is not directly received by the green sand main mold (14), and the core is removed from the mold and the core is removed. Although setting is carried out simultaneously, the cores may be set in the green sand main mold (14) manually after the cores have been placed on a tray or the like.

(発明の効果) 以−1−の説明から明らかなように本発明は中央部と端
部とで太さが大きく異なる段付中子を造型するに当って
所望中子形状のキャビティに加えて−J−1:方向に突
出する段付凹部を画成した拡大キャビティに生砂を吹込
み充填して予備成形体を造型し、次に予備成形体におけ
ろ該段付凹部に充填されている部分を」−下側側から所
望中子形状部へ押し込み圧縮して所望中子を造型し得る
構成としたから中子全体の強度をほぼ均一 にして造型
することができるものである。
(Effects of the Invention) As is clear from the explanations in -1- below, the present invention is effective in molding a stepped core whose thickness differs greatly between the center part and the end part, in addition to the cavity of the desired core shape. -J-1: A preform is formed by blowing green sand into an enlarged cavity defining a stepped recess projecting in the direction, and then filling the stepped recess in the preform. Since the structure is such that a desired core can be molded by pressing and compressing the portion of the molded core from the lower side into the desired core shape, the core can be molded with substantially uniform strength as a whole.

さらに生砂主型移送用のローラコンベヤと関連させるこ
とにより造型した中子を上金型及び圧縮」二型から離型
すると同時に主型にセットできる等種々の効果がある。
Furthermore, by associating it with a roller conveyor for transporting the green sand main mold, there are various effects such as being able to release the molded core from the upper mold and compression mold and set it in the main mold at the same time.

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

図は本発明の実施例を示すものにして第1図は一部省略
縦断正面図、第2図は、上下金型、圧縮下型及びブロー
金型を型合せした状態を示す要部拡大断面図である。
The drawings show an embodiment of the present invention, and Fig. 1 is a partially omitted vertical sectional front view, and Fig. 2 is an enlarged sectional view of the main part showing a state in which the upper and lower molds, the lower compression mold, and the blow mold are combined. It is a diagram.

Claims (1)

【特許請求の範囲】 1、所望中子(C)の下半部分形状と同一形状の段付凹
部(5)と、該凹部(5)の下端部に貫通して穿った段
付貫通穴(7)とを有する下金型(4)と、該段付貫通
穴(7)に摺動自在に嵌合された圧縮下型(6)と、該
下金型(4)の上方位置に出入り可能にされて、所望中
子(C)の上半部分形状と同一形状の段付凹部(22)
と、該凹部(22)の上端部に貫通して穿った段付貫通
穴(24)とを有する上金型(21)と、該段付貫通穴
(24)に嵌入可能にされると共に前記下金型(4)上
方位置に出入り可能にされた圧縮上型(23)と、前記
下金型(4)の上方位置に出入り可能にされたブロータ
ンク(30)と、該ブロータンク(30)の下面に固着
されて前記上金型(21)の段付貫通穴(24)に嵌入
可能にされたブロー金型(31)と、から成る生砂中子
の造型装置。 2、前記上金型(21)及び圧縮上型(23)が下金型
(4)の上方位置から外れる移動位置下方に、生砂主型
(14)の移送用ローラコンベヤ(11)を配設すると
共に該ローラコンベヤ(11)の下方に該生砂主型(1
4)を昇降させる押上板(16)を設けた請求項1記載
の生砂中子の造型装置。
[Claims] 1. A stepped recess (5) having the same shape as the lower half of the desired core (C), and a stepped through hole (5) drilled through the lower end of the recess (5). 7); a compression lower mold (6) slidably fitted into the stepped through hole (7); A stepped recess (22) having the same shape as the upper half of the desired core (C)
an upper mold (21) having a stepped through hole (24) drilled through the upper end of the recess (22); A compression upper mold (23) that can be moved in and out of a position above the lower mold (4), a blow tank (30) that can be moved in and out of a position above the lower mold (4), and a blow tank (30) that can be moved in and out of a position above the lower mold (4). ); and a blow mold (31) that is fixed to the lower surface of the mold and can be fitted into the stepped through hole (24) of the upper mold (21). 2. A roller conveyor (11) for transporting the green sand main mold (14) is arranged below the movement position where the upper mold (21) and the compression upper mold (23) are removed from the upper position of the lower mold (4). The green sand main mold (1) is installed below the roller conveyor (11).
2. The green sand core molding apparatus according to claim 1, further comprising a push-up plate (16) for raising and lowering the green sand core.
JP63093682A 1988-04-15 1988-04-15 Molding equipment for raw sand core Expired - Fee Related JPH0667532B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63093682A JPH0667532B2 (en) 1988-04-15 1988-04-15 Molding equipment for raw sand core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63093682A JPH0667532B2 (en) 1988-04-15 1988-04-15 Molding equipment for raw sand core

Publications (2)

Publication Number Publication Date
JPH01266943A true JPH01266943A (en) 1989-10-24
JPH0667532B2 JPH0667532B2 (en) 1994-08-31

Family

ID=14089174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63093682A Expired - Fee Related JPH0667532B2 (en) 1988-04-15 1988-04-15 Molding equipment for raw sand core

Country Status (1)

Country Link
JP (1) JPH0667532B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000037409A (en) * 2000-04-22 2000-07-05 박무 A shell mould core forming apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08284136A (en) * 1995-04-14 1996-10-29 Nisseki House Kogyo Kk Concrete water channel in which landscape and bioenvironment are improved

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000037409A (en) * 2000-04-22 2000-07-05 박무 A shell mould core forming apparatus

Also Published As

Publication number Publication date
JPH0667532B2 (en) 1994-08-31

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