Method for rapid robotic handling of small mold parts

B - Operations – Transporting – 29 – D

Patent

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Details

B29D 11/00 (2006.01) B29C 31/00 (2006.01) B29C 37/00 (2006.01)

Patent

CA 2239432

A method for removing and transporting ophthalmic lens fabricating mold sections from a molding device to an inert chamber in a predetermined time, controlled by a central processor, is disclosed. The method includes starting a timer upon opening the molding device and exposing the mold sections; actuating a robotic arm to transport the mold sections from the molding device to an intermediate position using a compound movement; actuating a cam-controlled arm to transport the mold sections from the intermediate position to a palled held on a conveyor belt at a cam-arm pre-part release location; and releasing the pallet to move.on the conveyor belt to the inert chamber for continued transport of mold containing pallets to a treatment or processing facility for producing and/or packaging of the contact lenses. The method also includes raising a nest to receive the mold sections at the intermediate position; and lowering the nest, after transfer thereon of the molded sections from the robotic arm, for transferring the molded sections to the cam-controlled arm. In a racetrack mode, the pallets continue moving into the inert chamber, while the molded sections are discarded. In a sample mode, a sample bin is moved to the discard location to collect a sample of the molded sections.

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