Abstract: A failsafe device, or pressure relief mechanism, for a shooting pot actuator in an injection molding machine. The shooting pot actuator has a multiple pusher rods mounted on one, or more, plates. Moving the plate holding the pusher rods depresses the shooting pot injection pistons and injects molten material into a number of mold cavities. To avoid damage to the machine from the pusher rods if an injection piston seizes, a failsafe device is used to mount the pusher rods to the plates. A shearing member is interposed, or sandwiched, between first and second apertures. Typically, the shearing member is a plate that, in normal operating conditions, blocks rearward movement of the pusher rod. However, when a predetermined shear force is applied to the shear plate, the shearing member shears and the pusher rod retracts within the channel, thereby alleviating the pressure.

Abstract: A shooting pot actuator for an injection molding machine having two plates carrying pusher rods for pushing against injection plungers within the shooting pots. The plates are mounted outside the mold and the clamp unit, and the pushers extend through bores in the stationary platen of the clamp unit to reach the injection plungers.

Abstract: The present invention relates to a device for unloading and cooling molded parts from an injection molding machine having an index turret block rotatable about a central axis. The device comprises a cooling turret block rotatable about an axis substantially parallel to the central axis, which cooling turret block has a plurality of faces. At least one of the faces includes a plurality of nozzles for applying a cooling fluid to surfaces of the molded parts while the molded parts are resident on the index turret block. At least two of the other faces of the cooling turret block include a plurality of receiving tubes for receiving molded parts from the index turret block for further cooling. The cooling turret block of the present invention is capable of cooling multiple sets of molded parts.

Abstract: The present invention relates to a device for cooling molded parts and for transporting the molded parts from a receiving position to a holding/ejecting position. The device of the present invention has particular utility with an index molding machine having a rotary turret block with at least two movable mold halves thereon. The cooling device includes a cooling station assembly having a plurality of blowing tubes for applying a cooling fluid to external surfaces of molded parts, a take-off plate having a plurality of holders for receiving cooled molded parts and a connecting plate connecting the take-off plate and the cooling station assembly. The connecting plate is connected to the take-off plate by a pivotable connection and is connected to the cooling station assembly by a rigid connection. The connecting plate is movable along an axis substantially parallel to one of the faces upon which the molded parts to be cooled and removed are positioned.