Abstract: A concrete product molding machine has a mold removal and replacement mechanism which includes a transfer carriage movable from a location remote from mold supports on the machine along a pathway leading longitudinally abeam of the mold supports. Motor mechanism is activatable for moving a transfer carriage longitudinally adjacent to the machine, moving a cross carriage transversely inward, raising an elevator platform to deposit a mold thereon, returning the cross carriage transversely, and moving the transfer carriage longitudinally to remove the mold to a position adjacent to a mold deposit and replacement station. The mold is deposited at the mold deposit and replacement station and a replacement mold is deposited on the removal and replacement mechanism to be transferred to the concrete molding machine.

Abstract: A device is provided for unloading a mold from the mold support surface of a concrete products producing machine and moving it to a remote mold replacement station, and then loading a replacement mold to the support surface of the machine. It incorporates a carriage supporting framework, a mold carriage transport system on the framework extending into the molding machine from the mold replacement station, which is mounted by the framework for vertical travel, and a mold transport carriage for moving from the replacement station along the transport system to a position juxtaposed vertically with the machine mold support surface. An actuatable mechanism interacts with the transport system for moving the transport system vertically relative to the carriage supporting framework from a remote support position aligned vertically with the mold to a mold support position in which the transport system can move the mold out of the machine.