Method of and apparatus for controlling forming press conditions

Details Method of and apparatus for controlling forming press conditions Method of and apparatus for controlling forming press conditions

1985-08-16

1987-10-13

Spruill, Robert L.

Refrigeration

Processes

Circulating external gas

72 20, 72 8, 72438, 364476, B30B 1516

Patent

active

046989919

ABSTRACT:
A method of and apparatus for controlling forming press conditions aids in maintaining stability in a mechanical double action press forming provided with an upper die (inner) and an outer ram (outer). These dies are driven independently wherein press conditions related to the forming process, such as a hydraulic pressure and pneumatic pressure, are automatically corrected by feedback so as to be maintained to preset values corresponding to the change of the inner stroke during the forming process. Abnormal operation can also be detected and corrected immediately by detecting the change of the press conditions during the forming process continuously or intermittently.

REFERENCES:
patent: 4116122 (1978-09-01), Linder et al.

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