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1. 发明授权

US5558148A Method of producing molds 失效
标题翻译：生产模具的方法
公开(公告)号：US5558148A
公开(公告)日：1996-09-24
申请号：US435476
申请日：1995-05-05
申请人： Nagato Uzaki , Ukichi Oishi , Ryoji Kanayama , Hironobu Amano , Tokiya Terabe
发明人： Nagato Uzaki , Ukichi Oishi , Ryoji Kanayama , Hironobu Amano , Tokiya Terabe
IPC分类号： B22C15/23 , B22C15/276 , B22C15/28 , B22C15/264
CPC分类号： B22C15/28
摘要： 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：将成形砂（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，并且空间被封闭在烧瓶（3）的上部，通过盖（6）。封闭空间中的空气被抽真空以将封闭空间中的型砂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。

2. 发明授权

US5695000A Apparatus for producing molds 失效
标题翻译：用于生产模具的设备
公开(公告)号：US5695000A
公开(公告)日：1997-12-09
申请号：US569726
申请日：1995-12-08
申请人： Nagato Uzaki , Ukichi Oishi , Ryoji Kanayama , Hironobu Amano , Tokiya Terabe
发明人： Nagato Uzaki , Ukichi Oishi , Ryoji Kanayama , Hironobu Amano , Tokiya Terabe
IPC分类号： B22C15/08 , B22C15/28
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： The molding apparatus includes a table movable between an area where molding sand is fed and a mold-producing area for carrying a pattern plate on which a flask is mounted, a cylinder for vertically moving the table, a closing cover having an opening at the lower part thereof, the opening communicating with an upper opening of the flask. The closing cover has 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 communicates with the upper part of the closing cover and an air valve communicates with the air-supply pipe to introduce ambient air into the air-supply pipe. An opening is formed in an upper and side part of the closing cover for communicating with a vacuum source. A press plate is 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：成型装置包括可在进给型砂的区域和用于承载安装有烧瓶的图案板的模具产生区域之间移动的工作台，用于使工作台垂直移动的气缸，在下部具有开口的封闭盖其一部分，开口与烧瓶的上部开口连通。闭合盖具有阶梯部，使得封闭盖的下部的截面积小于其上部的截面面积。至少一个供气管与封闭盖的上部连通，空气阀与供气管连通，以将环境空气引入供气管。在封闭盖的上部和侧部形成开口，用于与真空源连通。压板悬挂在封闭盖中用于垂直运动，使得压板可以气密地插入封闭盖的小下部。

3. 发明授权

US5148852A Compressed air blowing apparatus for use in green sand mold molding facility 失效
标题翻译：压缩空气吹风装置，用于绿色模具成型设备
公开(公告)号：US5148852A
公开(公告)日：1992-09-22
申请号：US804643
申请日：1991-12-10
申请人： Ukichi Oishi
发明人： Ukichi Oishi
IPC分类号： B22C15/00 , B22C15/28
CPC分类号： B22C15/28 , B22C15/00
摘要： A compressed air blowing apparatus for supplying compressed air to molding sand placed in a flask is arranged in such a manner that its compressed air reservoir tank is constituted by a surface-plate frame and a cover, the frame having a compressed-air outlet port which can be opened/closed by a sectioning device and a piston which can be vertically moved. The sectioning device is constituted by concentrically disposed large and small cylindrical members by a cover member secured to the large and small cylindrical members having air feed holes formed between the large cylindrical member and the small cylindrical member and by connecting duct for communicating the outside of the cylindrical member with the inside of the small cylindrical members. As an alternative to this, the sectioning device is composed of a cylindrical member extending vertically and having a spur-like cross-sectional shape and a cover member hermetically secured to the lower end potion of the cylindrical member and having a spur-like air feed hole communicated with an inside space of the cylindrical member. When the piston is moved upwards, compressed air in the compressed air reservoir tank is quickly discharged by a large quantity through the outlet port via the sectioning device.

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