公开(公告)号：US4899806A

公开(公告)日：1990-02-13

申请号：US247823

申请日：1988-09-22

申请人： Thomas E. Wuepper ,  Terry L. Franklyn

发明人： Thomas E. Wuepper ,  Terry L. Franklyn

IPC分类号： B22C9/02 ,  B22C21/02

CPC分类号： B22C9/02 ,  B22C21/02

摘要： A relatively hard sand cake, containing a metal casting cavity, is formed in a flask comprising cope and drag frame sections by filling and compacting sand in the drag against the drag half of a cavity-forming pattern, then arranging the drag with the cavity opening upwards, applying the cope upon the drag and filling and compacting sand in the cope against the cope half of the cavity-forming pattern. The sand-filled cope is lifted from the drag for removal of the pattern and is re-applied to form the casting cavity in the sand cake. Next, selected wall corner joints of both the cope and the drag frames are separated and opened to laterally expand the walls of the frames away from the sand cake surfaces. This releases the sand cake from the cope and drag so that it may be removed from the flask for later casting molten metal in its casting cavity. At least two of the corners of each of the cope and drag frames include a separate corner piece against which the adjacent ends of the frame walls are abutted. A releasable fastening mechanism secures the corner pieces to their adjacent frame walls and may be selectively operated to separate the corner pieces from their adjacent walls for opening the wall corner joints.

摘要翻译： 通过将凹陷中的沙子相对于空腔形成图案的拖曳半部填充和压实而形成在包括上模和拖曳框架部分的烧瓶中的相对硬的砂饼，然后将其与空腔开口 向上施加上面的物体，使其在拖曳和填充中，并将上压的砂压在空腔形成图案的上半部分上。 将沙子填充的上料从拖曳中取出以除去图案，并重新施加以在砂饼中形成铸造腔。 接下来，分离和打开上部和拖曳框架的所选壁角接头以横向扩展框架的壁远离砂饼表面。 这样可以将沙饼从上层层中释放出来并进行拖曳，从而将其从烧瓶中取出，以便稍后在其铸造腔中铸造熔融金属。 每个上下档框架的至少两个角部包括一个单独的拐角件，框架壁的相邻端与该对角件邻接。 可释放的紧固机构将角块固定到其相邻的框架壁上，并且可以选择性地操作以将角块与其相邻的壁分开以打开壁角接头。

公开(公告)号：US4836266A

公开(公告)日：1989-06-06

申请号：US210403

申请日：1988-06-23

申请人： Thomas E. Wuepper ,  Terry L. Franklyn

发明人： Thomas E. Wuepper ,  Terry L. Franklyn

IPC分类号： B22D33/04

CPC分类号： B22D33/04

摘要： A flaskless sand mold is formed in vertically aligned, sand-filled cope and drag flasks having a pattern board arranged between them so that pattern portions mounted upon the board extend upwardly into the cope and downwardly into the drag. The sand in the drag flask is supported upon a vertically guided platen which covers the bottom of the drag flask, and the cope is covered with a squeeze plate. The sand fillings are compressed against the pattern board and the pattern portions by the platen and squeeze plate to form compacted cope and drag sand molds with aligned cavities. Then the platen, supporting the drag sand mold, is lowered a short distance while the drag flask is held immovably against the cope flask. Thereafter, while the platen, with the drag sand mold, continues to lower, the drag frame is simultaneously lowered into a rest position upon a track-like support. When the drag sand mold reaches a position completely below the bottom of the drag flask, the drag flask is laterally moved out of the way, upon its support, along with the pattern board, and the platen is elevated until the drag sand mold upper surface engages the lower surface of the cope sand mold to form a closed flaskless sand mold with a casting cavity. Next, the closed sand mold is lowered until the cope sand mold is beneath the cope flask, and the sand mold is then moved transversely to a different location for casting metal.

摘要翻译： 一个无砂箱的沙模形成在垂直排列的沙子填充的上下砂箱中，其中布置有它们之间的图案板，使得安装在板上的图案部分向上延伸到上部并向下延伸到该阻力中。 砂箱中的沙子被支撑在一个垂直导向的压板上，该台板覆盖了该砂箱的底部，并且该上盖被一个挤压板覆盖。 砂填充物通过压板和挤压板压靠在图案板和图案部分上，以形成具有对准空腔的压实的上模和拖拉砂模。 然后将支撑拖拉砂模的压板放下一段很短的距离，同时将砂箱不动地固定在上盖上。 此后，当压板与拖拉砂模继续下降时，拖曳框架同时下降到轨道状支撑件上的静止位置。 当砂砂模具到达完全低于下砂箱底部的位置时，该砂箱在其支撑件上横向移动离开模板，并且压板升高直到拖砂模具上表面 接合上砂模具的下表面以形成具有铸造腔的封闭的无砂砂模具。 接下来，封闭的砂模降低，直到上砂模具在上砂箱下面，然后砂模横向移动到用于铸造金属的不同位置。

公开(公告)号：US4791975A

公开(公告)日：1988-12-20

申请号：US28122

申请日：1987-03-19

申请人： Thomas E. Wuepper ,  Terry L. Franklyn

发明人： Thomas E. Wuepper ,  Terry L. Franklyn

IPC分类号： B22C9/02 ,  B22C21/02

CPC分类号： B22C9/02 ,  B22C21/02

摘要： A relatively hard sand cake, containing a metal casting cavity, is formed in a flask comprising cope and drag frame sections by filling and compacting sand in the drag against the drag half of a cavity-forming pattern, then arranging the drag with the cavity opening upwards, applying the cope upon the drag and filling and compacting sand in the cope against the cope half of the cavity-forming pattern. The sand-filled cope is lifted from the drag for removal of the pattern and is re-applied to form the casting cavity in the sand cake. Next, selected wall corner joints of both the cope and the drag frames are separated and opened to laterally expand the walls of the frames away from the sand cake surfaces. This releases the sand cake from the cope and drag so that it may be removed from the flask for later casting molten metal in its casting cavity. At least two of the corners of each of the cope and drag frames include a separate corner piece against which the adjacent ends of the frame walls are abutted. A releasable fastening mechanism secures the corner pieces to their adjacent frame walls and may be selectively operated to separate the corner pieces from their adjacent walls for opening the wall corner joints.

摘要翻译： 通过将凹陷中的沙子相对于空腔形成图案的拖曳半部填充和压实而形成在包括上模和拖曳框架部分的烧瓶中的相对硬的砂饼，然后将其与空腔开口 向上施加上面的物体，使其在拖曳和填充中，并将上压的砂压在空腔形成图案的上半部分上。 将沙子填充的上料从拖曳中取出以除去图案，并重新施加以在砂饼中形成铸造腔。 接下来，分离和打开上部和拖曳框架的所选壁角接头以横向扩展框架的壁远离砂饼表面。 这样可以将沙饼从上层层中释放出来并进行拖曳，从而将其从烧瓶中取出，以便稍后在其铸造腔中铸造熔融金属。 每个上下档框架的至少两个角部包括一个单独的拐角件，框架壁的相邻端与该对角件邻接。 可释放的紧固机构将角块固定到其相邻的框架壁上，并且可以选择性地操作以将角块与其相邻的壁分开以打开壁角接头。