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1. A transfer device for use with a pulp molding manipulator, comprising: a wet blank transfer mold having.an internal airtight air chamber defined therein, a front face defining at least one recessed matching cavity that is recessed towards the airtight air chamber, has a cavity shape that matches the pulp wet blank container, and is configured to be sheathed on an outside surface of a pulp wet blank container, a plurality of small communicating holes defined in an inner wall and at a bottom of each recessed matching cavity that extend, and provide a plurality of air communication pathways, between each recessed matching cavity and the airtight air chamber; a guiding mechanism coupled to a back face of the wet blank transfer mold wherein the guiding mechanism comprises a plurality of parallel guide posts each affixed at a first end to the back face of the wet blank transfer mold, and each slidably sheathed within a separate guide sleeve affixed within a guide sleeve fixing hole defined in the moving frame, such that the moving frame is slidably movable on the guide posts and with respect to the wet blanket transfer mold; a moving frame movably coupled to the guiding mechanism and disposed parallel to the back face of the wet blank transfer mold; a driver disposed between, and operatively coupled to, each of the back face of the wet blank transfer mold and the moving frame, and configured to drive movement of the moving frame, as guided by the guiding mechanism, relative to the wet blank transfer mold; a plurality of evenly spaced vacuum cups disposed on the moving frame that are each directed away from the back face of the wet blank transfer mold; and a vacuum-pumping system operatively coupled to each of the airtight air chamber and the vacuum cups, and configured to draw a vacuum in the airtight chamber and suction at each recessed matching cavity via the communicating holes disposed therebetween, and draw suction at each of the vacuum cups.
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