Plastic article or earthenware shaping or treating: apparatus – Female mold and means to feed measured charge of fluent...
Patent
1985-10-03
1987-06-23
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Female mold and means to feed measured charge of fluent...
425444, 425562, 426515, A23G 914
Patent
active
046749683
ABSTRACT:
A molding apparatus for forming comestible shapes includes a mold block having an open ended cavity formed therein, the cavity having an axis of symmetry generally transverse to a plane of its open end, and movable means for closing the open end during molding to retain the comestible within the cavity. A scraper pivotally mounts at just one point on the mold block for rotation about the axis of symmetry within the cavity, and a conduit valve provides a flow of comestible in a plastic state into the mold cavity. Control means controls the flow of comestible into the cavity, the rotation of the scraper, and the opening and closing of the movable means to permit shaping of the comestible within the mold cavity and release of the shaped comestible from the mold cavity by operation of the valve, the movable means, and the scraper. In one embodiment, a conduit houses a displacement valve controlled to provide a negative flow pressure after filling of the mold. The molding apparatus is mounted for traverses synchronized with a conveyor. In a preferred embodiment, the scraper, the displacement valve and the movable means are powered by pneumatic cylinders, and a sequencing valve controls the actuation of the cylinders. In a production line embodiment, the sequencing valve may be a programmable limit switch operating on an input signal derived from a rotating member of a conveyor belt.
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APV Glacier Industries, Inc.
Fortenberry J.
Woo Jay H.
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