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公开(公告)号：EP0681877B1
公开(公告)日：1998-11-11
申请号：EP95107018.4
申请日：1995-05-09
申请人： SINTOKOGIO LTD.
IPC分类号： B22C15/23 , B22C15/276 , B22C15/28
CPC分类号： B22C15/28
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公开(公告)号：EP0681877A3
公开(公告)日：1996-12-11
申请号：EP95107018.4
申请日：1995-05-09
申请人： SINTOKOGIO LTD.
IPC分类号： B22C15/00
CPC分类号： B22C15/28
摘要： A method of making a well-compacted mold by using a vacuum air flow is provided. In the method, molding sand (5) is fed into a space defined by a pattern plate (2) and a flask (3) mounted on the pattern plate (2), and the space is enclosed at the upper part of the flask (3) by a cover (6). The air in the enclosed space is evacuated to reduce the air pressure between the grains of the molding sand in the enclosed space to 1 Torr to 150 Torr, and then air is introduced into the enclosed space from the upper part of the space so that the pressure in the space can increase at the rate of 15 atm/s to compress the molding sand (5). The method eliminates the need for vent holes and enables the mold to be crack-free since the air flow is not reflected.
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公开(公告)号：EP0720878A1
公开(公告)日：1996-07-10
申请号：EP95119384.6
申请日：1995-12-08
申请人： SINTOKOGIO, LTD.
CPC分类号： B22C15/08 , B22C15/28 , C10M2207/028 , C10M2215/086 , C10M2215/28 , C10M2219/044 , C10M2221/041 , C10N2240/02 , C10N2240/04 , C10N2240/042 , C10N2240/044 , C10N2240/046 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106
摘要： An apparatus is disclosed of less mechanical rigidity and less strength for producing a mold. It includes a table (7) movable between an area where molding sand is fed and a mold-producing area for carrying a pattern plate (12) on which a flask (13) is mounted, a cylinder (9) for vertically moving the table, a closing cover (18) having an opening at the lower part thereof, the opening communicating with an upper opening of the flask, the closing cover having a stepped part such that the cross-sectional area of the lower part of the closing cover is smaller than that of the upper part thereof, at least one air-supply pipe (28) for communicating with the upper part of the closing cover, an air valve (29) for communicating with the air-supply pipe to introduce ambient air into the air-supply pipe, an opening (24) formed in an upper and side part of the closing cover for communicating with a vacuum source (27), and a press plate (23) suspended in the closing cover for a vertical movement such that the press plate can be airtightly inserted into the small lower part of the closing cover.
摘要翻译： 公开了一种具有较少的机械刚性和较少的用于生产模具的强度的装置。 它包括一个可在进料型砂的区域和一个模具产生区域之间移动的工作台（7），用于承载安装有烧瓶（13）的图案板（12），用于垂直移动工作台 ，在其下部具有开口的封闭盖（18），所述开口与所述烧瓶的上开口连通，所述封闭盖具有阶梯部，使得所述封闭盖的下部的横截面积为 小于其上部的至少一个供气管（28），用于与封闭盖的上部连通的空气阀（29），用于与供气管连通以将环境空气引入到空气供应管 供气管，形成在封闭盖的上部和侧部中的与真空源（27）连通的开口（24）和悬挂在封闭盖中的压板（23），用于垂直运动，使得 压板可以气密地插入关闭c的小下部 过度。
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4.发明授权
公开(公告)号：EP0490701B1
公开(公告)日：1998-11-11
申请号：EP91311617.4
申请日：1991-12-13
申请人： SINTOKOGIO LTD.
发明人： Oishi, Ukichi
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公开(公告)号：EP0681877A2
公开(公告)日：1995-11-15
申请号：EP95107018.4
申请日：1995-05-09
申请人： SINTOKOGIO LTD.
IPC分类号： B22C15/00
CPC分类号： B22C15/28
摘要： A method of making a well-compacted mold by using a vacuum air flow is provided. In the method, molding sand (5) is fed into a space defined by a pattern plate (2) and a flask (3) mounted on the pattern plate (2), and the space is enclosed at the upper part of the flask (3) by a cover (6). The air in the enclosed space is evacuated to reduce the air pressure between the grains of the molding sand in the enclosed space to 1 Torr to 150 Torr, and then air is introduced into the enclosed space from the upper part of the space so that the pressure in the space can increase at the rate of 15 atm/s to compress the molding sand (5). The method eliminates the need for vent holes and enables the mold to be crack-free since the air flow is not reflected.
摘要翻译： 提供了一种通过使用真空气流来制造压实模具的方法。 在该方法中，将型砂（5）进料到由图案板（2）和安装在图案板（2）上的烧瓶（3））限定的空间中，并将空间封闭在烧瓶的上部 3）通过盖（6）。 封闭空间中的空气被抽空以将封闭空间中型砂的颗粒之间的空气压力降低到1乇至150乇，然后空气从空间的上部引入封闭空间，使得 空气中的压力可以以15atm / s的速率增加以压缩型砂（5）。 该方法消除了对通气孔的需要，并且使得模具无裂纹，因为空气流不被反射。
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公开(公告)号：EP0681877B2
公开(公告)日：2002-08-21
申请号：EP95107018.4
申请日：1995-05-09
申请人： SINTOKOGIO LTD.
IPC分类号： B22C15/23 , B22C15/276 , B22C15/28
CPC分类号： B22C15/28
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公开(公告)号：EP0720878B1
公开(公告)日：1999-05-26
申请号：EP95119384.6
申请日：1995-12-08
申请人： SINTOKOGIO, LTD.
CPC分类号： B22C15/08 , B22C15/28 , C10M2207/028 , C10M2215/086 , C10M2215/28 , C10M2219/044 , C10M2221/041 , C10N2240/02 , C10N2240/04 , C10N2240/042 , C10N2240/044 , C10N2240/046 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106
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8.发明公开
公开(公告)号：EP0490701A3
公开(公告)日：1993-12-22
申请号：EP91311617.4
申请日：1991-12-13
申请人： SINTOKOGIO LTD.
发明人： Oishi, Ukichi
摘要： The apparatus supplies compressed air to molding sand (S) in a flask (26,27). A compressed air reservoir is constituted by a cover (14) and a surface-plate frame (7) having a compressed-air outlet port (6) which can be opened/closed by a vertically movable piston (12) and a sectioning devie (10) constituted by concentrically disposed large and small cylindrical members (10a,10b) secured to a cover member (10c) having air feed holes (11), between the cylindrical members (10a, 10b), and by connecting ducts (10d) for communicating the outside of the large cylindrical member (10a) with the inside of the small cylindrical member (10b). As an alternative to this, the sectioning device (60) is composed of a cylindrical member (60a) extending vertically and having a spur-like cross-sectional shape (Fig. 5) and a cover member (60b) hermetically secured to the lower end portion of the cylindrical member (60a) and having a spur-like air feed hole (61) communicated with the inside space of the cylindrical member (60a). When the piston (12) is moved upwards, compressed air in the reservoir is quickly discharged by a large quantity through the outlet port (6) via the sectioning device (10,60).
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9.发明公开Compressed air blowing apparatus for use in green sand mold molding facility 失效DruckluftbetätigteFormmaschine，zum Herstellen von Giessereisandformen。
公开(公告)号：EP0490701A2
公开(公告)日：1992-06-17
申请号：EP91311617.4
申请日：1991-12-13
申请人： SINTOKOGIO LTD.
发明人： Oishi, Ukichi
摘要： The apparatus supplies compressed air to molding sand (S) in a flask (26,27). A compressed air reservoir is constituted by a cover (14) and a surface-plate frame (7) having a compressed-air outlet port (6) which can be opened/closed by a vertically movable piston (12) and a sectioning devie (10) constituted by concentrically disposed large and small cylindrical members (10a,10b) secured to a cover member (10c) having air feed holes (11), between the cylindrical members (10a, 10b), and by connecting ducts (10d) for communicating the outside of the large cylindrical member (10a) with the inside of the small cylindrical member (10b). As an alternative to this, the sectioning device (60) is composed of a cylindrical member (60a) extending vertically and having a spur-like cross-sectional shape (Fig. 5) and a cover member (60b) hermetically secured to the lower end portion of the cylindrical member (60a) and having a spur-like air feed hole (61) communicated with the inside space of the cylindrical member (60a). When the piston (12) is moved upwards, compressed air in the reservoir is quickly discharged by a large quantity through the outlet port (6) via the sectioning device (10,60).
摘要翻译： 该装置将压缩空气供应到烧瓶（26,27）中的型砂（S）。 压缩空气存储器由具有压缩空气出口（6）的盖（14）和表面板框架（7）构成，该压缩空气出口（6）能够通过可垂直移动的活塞（12）和分段开口 10），由圆筒部件（10a，10b）之间固定在具有供气孔（11）的盖部件（10c）上的同心配置的大型和小型圆柱形部件（10a，10b），以及连接管道（10d） 将大圆柱形构件（10a）的外部与小圆柱形构件（10b）的内部连通。 作为替代，切割装置（60）由垂直延伸并且具有凸起状横截面形状（图5）的圆柱形构件（60a）和气密地固定到下部的盖构件（60b）组成 所述圆柱形构件（60a）的端部具有与所述圆柱形构件（60a）的内部空间连通的带状空气供给孔（61）。 当活塞（12）向上移动时，储存器中的压缩空气经由分段装置（10,60）通过出口（6）快速排出大量。
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