Abstract: A molding system for a low-pressure light alloy casting plant, extending in height along a main axis, has a mold having a lower half-mold and an upper half-mold. The molding system has a first lower fixed plate on which the lower half-mold is housed, a movable plate on which the upper half-mold is housed, a second upper fixed plate positioned at the top of the movable plate, a movement group for moving the movable plate along the main axis, having an electric drive motor and transmission members operatively connected to the electric drive motor and to the movable plate, a casting ejection group having an electric ejector motor and ejection members movable by the electric ejector motor in an ejection position in which the casting is detached from the upper half-mold, and a command unit controlling operation of the electric drive motor and of the electric ejector motor.

Abstract: A trimming-deburring assembly includes an upper fixed plate, a lower fixed plate, an intermediate mobile plate, movable between the upper and lower fixed plates, in a vertical direction, and command and movement means for moving the intermediate mobile plate, having an electric motor and a movement group operatively connected on a top to the electric motor and on the bottom to the intermediate mobile plate. The movement group has a spindle member drivable in rotation by the electric motor, having a spindle cavity and a worm gear element provided with a worm gear cavity defined by a threaded worm gear wall, and a worm screw element at least partially housed in the spindle cavity and in the worm gear cavity, having a threaded screw wall engaged with the threaded worm gear wall to receive rotary action of the worm gear element, and a lower end operatively connected to the lower fixed plate.

Abstract: A trimming-deburring assembly includes an upper fixed plate, a lower fixed plate, an intermediate mobile plate, movable between the upper and lower fixed plates, in a vertical direction, and command and movement means for moving the intermediate mobile plate, having an electric motor and a movement group operatively connected on a top to the electric motor and on the bottom to the intermediate mobile plate. The movement group has a spindle member drivable in rotation by the electric motor, having a spindle cavity and a worm gear element provided with a worm gear cavity defined by a threaded worm gear wall, and a worm screw element at least partially housed in the spindle cavity and in the worm gear cavity, having a threaded screw wall engaged with the threaded worm gear wall to receive rotary action of the worm gear element, and a lower end operatively connected to the lower fixed plate.

Abstract: A system performing operations for making a workpiece starting with a cast is provided. The system includes a loading station into which a cast obtained from foundry operations is loaded, an unloading station in which the workpiece is unloaded, and an operating station carrying out cutting operations on parts to be discarded from the cast, including operations for eliminating sprues, cast runners, wells, vacuum branches, and foundry burrs. The operating station has a laser head that emits through a delivery source a laser beam that cuts predefined portions of the cast and head support and movement means operatively connected to the laser head to support and move it according to a predefined cutting path along which to cut from the cast parts to be discarded.