Plastic article or earthenware shaping or treating: apparatus – Dough divider type including trap chamber – Rotating trap chamber pickup
Patent
1974-03-28
1976-03-30
Shore, R. J.
Plastic article or earthenware shaping or treating: apparatus
Dough divider type including trap chamber
Rotating trap chamber pickup
425DIG221, 425246, 4254519, B29F 106
Patent
active
039471969
ABSTRACT:
A rubber material is sequentially injected into a plurality of elongated molds positioned within a corresponding plurality of vertical hydraulic presses arranged in a row. The material is injected into each mold by a pair of injection molding machines which are arranged in side-by-side relation and are supported by a carriage for both axial and lateral movement as a unit. Each of the molds has a set of mold sections which are supported by upper and lower platens of the corresponding press, and each press includes a set of vertical tie rods which are spaced longitudinally along the mold and are actuated by hydraulic cylinders for rigidly clamping the platens and mold sections together. The tie rods have upper end portions which are releasably locked to the upper mold platen by a laterally movable latch mechanism. After a molding cycle, the latch mechanism is released, and the tie rods are retracted downwardly. The mold is then opened, and the upper and lower mold sections within each press are automatically moved or shifted laterally through the paths of the tie rods by a mold transfer mechanism. The transfer mechanism also positions the upper mold section so that it slopes upwardly and the lower mold section slopes downwardly to provide for conveniently removing the molded parts. The mold sections are then automatically returned to the press and closed, and the tie rods are extended and latched for the next molding cycle.
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patent: 3497919 (1970-03-01), Brochetti
Laug George H.
Tribbett Murray C.
Safran David S.
Shore R. J.
The French Oil Mill Machinery Company
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