Quick change locator clamp assembly for plastic molding machine

Claim 1

In a plastic or die cast molding machine having opposed stationary and movable platens adapted to receive, mount and support a sectional plastic molding die having opposed stationary and movable guidably interconnected clamps plates comprising; opposed inwardly facing symmetrical quick change locator clamp assemblies mounted upon said platens; each clamp assembly including a body plate bearing against and secured to a platen; laterally spaced index pins mounted upon said body plate and projecting outwardly thereof; there being correspondingly spaced keyhole slots within the corresponding edges of said clamp plates adapted to cooperatively receive said pins for locating said clamp plates relative to and against said body plates respectively; longitudinally spaced opposed inward directed pairs of plate clamps adjustably and guidably mounted upon opposite sides of said body plate adapted to receive and retainingly engage opposite sides of a clamp plate; and rotatable screw means interconnecting each pair of clamps rotatable in one direction for simultaneously moving each pair of clamps inwardly to operatively and retainingly engage a clamp plate for securing said clamp plates to said platens respectively; and alternately rotatable in the opposite direction for moving each pair of clamps outwardly to disengage said clamp plates to facilitate removal of said sectional die and clamp plates from said platens.