Oblique core locking mechanism for die casting machines

Claim 1

A die casting machine comprising a stationary platen, an ejector die block which when in engagement with the stationary platen forms a closed die cavity, means for moving the ejector die block toward and away from the stationary platen, and a die member slidably mounted in the ejector die block for movement in a direction at an acute angle to the direction of movement of the block, wherein the improvement comprises: (a) a substantially planar rear surface on the ejector die block which is perpendicular to the direction of movement of the block, (b) a substantially planar surface on the rear end of the slidable die member, which surface is perpendicular to the direction of movement of the ejector die block, (c) a second platen which is mounted for movement in the same direction as the ejector die block and has a front surface which is engageable with the planar rear surfaces of the ejector die block and slidable die member for locking them in their die-closed positions, (d) a mounting rod fixed to the ejector die block and extending rearward from the ejector die block, (e) means for slidably moving the die member relative to the ejector die block, said means being mounted on the end of the mounting rod, (f) an actuating rod for slidably mounting the die member, which is fixed to the die member and extends rearward from the die member, and which connects the die member to said means for moving the die member, and (g) a slot in the second platen through which the mounting rod extends, and an additional slot in the second platen through which the actuating rod extends, said slots being wide enough to permit the second platen to be moved away from the ejector die block through a distance sufficient to permit the means for slidably moving the die member to withdraw the die member to its die-open position.