Flask removal unit, modeling machine, and flask removal method

Abstract

Provided is a flask removal unit that removes a cope and a drag from an upper and lower flask. The flask removal unit includes a guide member, a flask moving unit, an extrusion unit, a support unit configured to move a support member together with an extrusion member to support the mold extruded from the upper and lower flask by the extrusion unit, and configured to convey the mold to an unloading position where the mold is unloaded, and a control unit. The control unit is configured to perform control such that at least one of an upper flask and an lower flask is moved to a position where the pattern member is able to be disposed between the upper flask and the lower flask in a period in which the support unit conveys the mold to the unloading position.

What is claimed is: 
     
         1 . A flask removal unit that removes a cope and a drag between which a pattern member is disposed from an upper and lower flask, the flask removal unit comprising:
 an upper flask having the cope formed inside and having open upper end and lower end;   a lower flask having the drag formed inside and having open upper end and lower end;   a guide member to which at least one of the upper flask and the lower flask is movably connected;   a flask moving unit configured to move at least one of the upper flask and the lower flask along the guide member;   an extrusion unit including an extrusion member configured to relatively move with respect to the upper and lower flask obtained by coupling the upper flask and the lower flask to each other, and configured to extrude, from the upper and lower flask, a mold obtained by combining the cope and the drag with each other;   a support unit including a support member configured to relatively move to the upper and lower flask, configured to move the support member together with the extrusion member to support the mold extruded from the upper and lower flask by the extrusion unit, and configured to convey the mold extruded from the upper and lower flask to an unloading position where the mold is unloaded; and   a control unit configured to control the flask moving unit, the extrusion unit, and the support unit, wherein   the control unit is configured to perform control such that at least one of the upper flask and the lower flask is moved to a position where the pattern member is able to be disposed between the upper flask and the lower flask in a period in which the support unit conveys the mold to the unloading position.   
     
     
         2 . The flask removal unit according to  claim 1 , wherein
 the lower flask is movably connected to the guide member,   the flask moving unit is configured to move the lower flask along the guide member,   the unloading position is at a position below the upper and lower flask, and   the control unit is configured to perform control such that the lower flask is moved along the guide member to a position where the pattern member is able to be disposed between the upper flask and the lower flask in a period in which the support unit conveys the mold to the unloading position.   
     
     
         3 . A modeling machine comprising:
 the flask removal unit according to  claim 1 ;   a conveyance unit configured to load and unload the pattern member in and from between the upper flask and the lower flask;   a rotation unit configured to rotate a flask unit including the upper and lower flask and the guide member between a first position where flask removal is performed and a second position where squeezing is performed; and   an unloading unit configured to unload the mold conveyed to the unloading position to an outside, wherein   the control unit is configured to   control the conveyance unit, the rotation unit, and the unloading unit, and   perform control such that the flask unit in which the pattern member is loaded in between the upper flask and the lower flask and the pattern member is clamped between the upper flask and the lower flask rotates from the first position to the second position in a period in which the mold conveyed to the unloading position is conveyed to the outside or before the period in which the mold is conveyed to the outside.   
     
     
         4 . The modeling machine according to  claim 3 , wherein
 a trajectory along which the flask unit rotates from the first position to the second position does not pass below a rotation shaft of the rotation unit.   
     
     
         5 . The modeling machine according to  claim 4 , wherein
 a virtual circle including the trajectory along which the flask unit rotates from the first position to the second position, as a part of a circumference of the circle passes through the unloading position.   
     
     
         6 . The modeling machine according to  claim 3 , wherein
 the control unit is configured to unload the mold conveyed to the unloading position to an outside in a period in which the flask unit in which the pattern member is clamped rotates from the first position to the second position, or after the period in which the flask unit rotates from the first position to the second position.   
     
     
         7 . A flask removal method for removing a cope and a drag between which a pattern member is disposed from an upper and lower flask, the flask removal method comprising:
 extruding a mold obtained by combining the cope and the drag with each other from an upper and lower flask obtained by coupling an upper flask having the cope formed inside and having open upper end and lower end and a lower flask having the drag formed inside and having open upper end and lower end;   conveying the mold extruded from the upper and lower flask to an unloading position where the mold is unloaded; and   moving at least one of the upper flask and the lower flask to a position where the pattern member is able to be disposed between the upper flask and the lower flask, wherein   the moving of the at least one of the upper flask and the lower flask is performed in a period which the conveying of the mold to the unloading position is performed.