Hydraulic press having integrated column clamps and actuators

Details Hydraulic press having integrated column clamps and actuators Hydraulic press having integrated column clamps and actuators

1988-07-21

1990-03-13

Nozick, Bernard

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

4254501, 100219, A01J 2100

Patent

active

049079590

ABSTRACT:
A hydraulic press has smooth columns that mount relatively movable mold support platens on a base and a ram or cross head. The bed and ram are rigid, low deflection fabricated members mounted on the columns. The clamps that clamp the movable ram in molding position have integrated pressing and stripping cylinders for performing the actual molding operation. The movable ram member is opened and closed with actuators separate from the molding force cylinders. The construction permits making a lighter weight press without a heavy crown at the top of the press.

REFERENCES:
patent: 3449795 (1969-06-01), Fischbach
patent: 4106885 (1978-08-01), Poncet
patent: 4123929 (1978-11-01), Heydts
patent: 4457684 (1984-07-01), Gram
patent: 4509910 (1985-04-01), Peterson
patent: 4565517 (1986-01-01), Brinkman et al.
patent: 4610618 (1986-09-01), Schmidts et al.
patent: 4643663 (1987-02-01), Bowles et al.

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