Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Patent
1977-08-05
1979-02-13
Lazarus, Richard B.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
264336, 425262, 425427, 425444, B28B 2126
Patent
active
041395930
ABSTRACT:
A molding station having packer heads is positioned between a pair of stripping stations having ejectors and a mold box having first and second mold sections is movable between first and second positions with the ejectors at the one stripping station registering with the one mold section and the packer heads registering with the other mold section and at the second position the ejectors at the other stripping station registering with the other mold section and the packer heads registering with the first mold section. The completed molded product is ejected as the mold box is raised and the molded product is formed as the mold box is lowered. The mold box is raised and lowered between top and bottom table halves and when in the lowered position is movable between the first and second positions on rails having legs adapted to engage a stationary support when the lower table half is lowered a predetermined distance. Hydraulic cylinders raise and lower the top and bottom table halves together and the top half relative to the bottom half allowing the mold box to be moved between the first and second positions without interference from the table halves.
REFERENCES:
patent: 831781 (1906-09-01), Fisher
patent: 1545255 (1925-07-01), Harrison
patent: 3649146 (1972-03-01), Moore
patent: 3662437 (1972-05-01), Long, Sr.
patent: 3989432 (1976-11-01), Depka
Holz William L.
Kinkade Franklin C.
Robbins Fred
Lazarus Richard B.
McQuade John
Mid-Iowa Concrete Products Company
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